This document provides installation and service information for Ricoh copiers models B245, B276, and B277. It contains sections on installation of the copier and accessories, preventative maintenance procedures and schedules, procedures for replacing and adjusting components, troubleshooting, and service mode tables for analyzing machine operation and errors. Users are advised to have proper training and certification before servicing the equipment.
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Este manual proporciona instrucciones sobre la preparación, funcionamiento y programación del registradora ER-680. Explica cómo colocar el papel, las funciones del hardware como la pantalla, teclado y modo de servicio. El modo de servicio permite configurar la memoria, tarjeta SD, contraseñas y más. La programación cubre el sistema de empleados, departamentos, grupos de PLU y la configuración de PLU individuales.
TNG là một trong 10 công ty dệt may lớn nhất Việt Nam, luôn nằm trong top 30 doanh nghiệp xuất khẩu uy tín. Với thị trường xuất khẩu chính là EU, đây là doanh nghiệp sẽ được hưởng lợi rất nhiều từ hiệp định EVFTA
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Este manual proporciona instrucciones sobre la preparación, funcionamiento y programación del registradora ER-680. Explica cómo colocar el papel, las funciones del hardware como la pantalla, teclado y modo de servicio. El modo de servicio permite configurar la memoria, tarjeta SD, contraseñas y más. La programación cubre el sistema de empleados, departamentos, grupos de PLU y la configuración de PLU individuales.
TNG là một trong 10 công ty dệt may lớn nhất Việt Nam, luôn nằm trong top 30 doanh nghiệp xuất khẩu uy tín. Với thị trường xuất khẩu chính là EU, đây là doanh nghiệp sẽ được hưởng lợi rất nhiều từ hiệp định EVFTA
Nhận viết luận văn đại học, thạc sĩ trọn gói, chất lượng, LH ZALO=>0909232620
Tham khảo dịch vụ, bảng giá tại: https://baocaothuctap.net
Download đề tài tiểu luận môn thương mại điện tử với đề tài: Kế hoạch internet – marketing cho công ty trách nhiệm hữu hạn thương mại dịch vụ quảng cáo mua nhanh, cho các bạn tham khảo
đáNh giá công tác quản lý tiền mặt tại công ty cổ phần in sách giáo khoa tại ...NOT
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Este manual proporciona instrucciones sobre la configuración y el uso de las impresoras de punto de venta ER-159, ER-259 y ER-780 de ECR SAMPOS. Explica cómo configurar el hardware como la unidad de papel, el teclado y la pantalla, y cómo programar funciones como empleados, departamentos, PLU y macros. También cubre la configuración de puertos de red, comunicaciones PLU y la programación de descripciones cortas y largas. El manual proporciona una guía detallada para la configuración y operación de estas
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Download luận văn thạc sĩ ngành kinh tế phát triển với đề tài: Phân tích các nhân tố tác động đến tình hình xuất khẩu gạo tại TP. Cần Thơ, cho các bạn có thể tham khảo
Download luận văn thạc sĩ ngành quản trị kinh doanh với đề tài: Nâng cao năng lực cạnh tranh của Tập đoàn Bưu chính Viễn Thông Việt Nam trong bối cảnh hội nhập kinh tế quốc tế
Dịch vụ lập báo cáo môi trường ĐTM | Xử lý nước thải | 0903034381
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Lập báo cáo môi trường
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Tư vấn môi trường: http://thaonguyenxanhgroup.com/
Liên Hệ:
ÔNG TY MÔI TRƯỜNG THẢO NGUYÊN XANH
Trụ sở: 158 Nguyễn Văn Thủ, P. Đakao, Quận 1, Hồ Chí Minh
Hotline: 0839118552 - 0918755356
Fax: 0839118579
Luận văn Thạc sĩ Quản trị kinh doanh: Cấu trúc vốn ảnh hưởng đến khả năng sinh lợi của các doanh nghiệp ngành xây dựng - bất động sản niêm yết trên Sở Giao dịch chứng khoán Thành phố Hồ Chí Minh cho các bạn làm luận văn tham khảo
Luận văn các nhân tố ảnh hưởng đến ý định sử dụng ví điện tử của người tiêu dùng việt nam – khảo sát tại thành phố hồ chí minh. - Tìm hiểu và khảo sát nhu cầu sử dụng VĐT của ngƣời tiêu dùng Việt Nam tại khu vực Thành phố Hồ Chí Minh để phân tích và xác định những nhân tố ảnh hƣởng và mức độ tác động của các nhân tố đó đến ý định sử dụng của ngƣời tiêu dùng.
Lap du an, Lap du an dau tu Thảo Nguyên Xanh GROUP
MỌI CHI TIẾT XIN LIÊN HỆ ĐỂ ĐƯỢC TƯ VẤN MIỄN PHÍ
Dịch Vụ Lập Dự Án Đầu Tư
Xin Chủ Trương Đầu Tư
Vay Vốn Ngân HàngKêu Gọi Đầu Tư
Tư vấn các thủ tục môi trường
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tác động môi trường (DTM)
Báo cáo giám sát môi trường Xin phép xả thảiThiết kế thi công hệ thống xử lý
nước thải, nước cấp
MỌI CHI TIẾT XIN LIÊN HỆ ĐỂ ĐƯỢC TƯ VẤN MIỄN PHÍ
CÔNG TY CỔ PHẦN TƯ VẤN ĐẦU TƯ THẢO NGUYÊN XANH
Địa Chỉ: 28B Mai Thị Lựu - Phường Đakao – Quận 1 – Tp. HCM
Website: http://lapduandautu.com.vn/
Website: http://www.lapduan.com.vn/
Homepage: http://thaonguyenxanhgroup.com/
Email: tuvan@lapduandautu.com.vn
Hotline: 0839118552 - 0903034381
Thảo Nguyên Xanh – nơi bắt đầu của những thành công vượt bậc!
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The document discusses the debate around whether governments should ban dangerous sports. While some argue that dangerous sports should be prohibited due to risks to participants and spectators, others counter that people should have the freedom to choose risky activities. The author's view is that governments should regulate, rather than ban, dangerous sports to minimize risks, and impose special protections for minors.
O documento fornece instruções para usar o scanner da impressora multifuncional Ricoh Aficio MP 161, incluindo links para tutoriais, manuais, drivers e informações de suporte técnico.
O documento descreve três modelos de impressoras da Ricoh: o MP1500, MP1600 e MP1900. Estes modelos compartilham o mesmo cilindro de imagem, mas podem ter especificações ligeiramente diferentes.
Tải luận văn thạc sĩ ngành tài chính ngân hàng với đề tài: Các yếu tố tác động đến việc nắm giữ tiền mặt của các công ty cổ phần niêm yết tại Việt Nam, cho các bạn tham khảo
Este manual proporciona instrucciones sobre la configuración y el uso de las impresoras de punto de venta ER-159, ER-259 y ER-780 de ECR SAMPOS. Explica cómo configurar el hardware como la unidad de papel, el teclado y la pantalla, y cómo programar funciones como empleados, departamentos, PLU y macros. También cubre la configuración de puertos de red, comunicaciones PLU y la programación de descripciones cortas y largas. El manual proporciona una guía detallada para la configuración y operación de estas
Nhận viết luận văn Đại học , thạc sĩ - Zalo: 0917.193.864
Tham khảo bảng giá dịch vụ viết bài tại: vietbaocaothuctap.net
Download luận văn đồ án tốt nghiệp ngành kế toán với đề tài: Hoàn thiện tổ chức kế toán doanh thu, chi phí và xác định kết quả kinh doanh tại HTX Công ty Thương mại Việt Phương, cho các bạn làm luận văn tham khảo
Download luận văn thạc sĩ ngành kinh tế phát triển với đề tài: Phân tích các nhân tố tác động đến tình hình xuất khẩu gạo tại TP. Cần Thơ, cho các bạn có thể tham khảo
Download luận văn thạc sĩ ngành quản trị kinh doanh với đề tài: Nâng cao năng lực cạnh tranh của Tập đoàn Bưu chính Viễn Thông Việt Nam trong bối cảnh hội nhập kinh tế quốc tế
Dịch vụ lập báo cáo môi trường ĐTM | Xử lý nước thải | 0903034381
Thiết kế quy hoạch
Lập báo cáo môi trường
Lập dự án
Xử lý nước thải
http://lapduandautu.com.vn
Dự án đầu tư khu dân cư cao cấp
Dự án đầu tư khu dân cư cao cấp
Dự án đầu tư khu dân cư cao cấp
Tư vấn lập dự án: http://www.lapduan.com.vn/
Tư vấn môi trường: http://thaonguyenxanhgroup.com/
Liên Hệ:
ÔNG TY MÔI TRƯỜNG THẢO NGUYÊN XANH
Trụ sở: 158 Nguyễn Văn Thủ, P. Đakao, Quận 1, Hồ Chí Minh
Hotline: 0839118552 - 0918755356
Fax: 0839118579
Luận văn Thạc sĩ Quản trị kinh doanh: Cấu trúc vốn ảnh hưởng đến khả năng sinh lợi của các doanh nghiệp ngành xây dựng - bất động sản niêm yết trên Sở Giao dịch chứng khoán Thành phố Hồ Chí Minh cho các bạn làm luận văn tham khảo
Luận văn các nhân tố ảnh hưởng đến ý định sử dụng ví điện tử của người tiêu dùng việt nam – khảo sát tại thành phố hồ chí minh. - Tìm hiểu và khảo sát nhu cầu sử dụng VĐT của ngƣời tiêu dùng Việt Nam tại khu vực Thành phố Hồ Chí Minh để phân tích và xác định những nhân tố ảnh hƣởng và mức độ tác động của các nhân tố đó đến ý định sử dụng của ngƣời tiêu dùng.
Lap du an, Lap du an dau tu Thảo Nguyên Xanh GROUP
MỌI CHI TIẾT XIN LIÊN HỆ ĐỂ ĐƯỢC TƯ VẤN MIỄN PHÍ
Dịch Vụ Lập Dự Án Đầu Tư
Xin Chủ Trương Đầu Tư
Vay Vốn Ngân HàngKêu Gọi Đầu Tư
Tư vấn các thủ tục môi trường
Lập báo cáo đánh giá
tác động môi trường (DTM)
Báo cáo giám sát môi trường Xin phép xả thảiThiết kế thi công hệ thống xử lý
nước thải, nước cấp
MỌI CHI TIẾT XIN LIÊN HỆ ĐỂ ĐƯỢC TƯ VẤN MIỄN PHÍ
CÔNG TY CỔ PHẦN TƯ VẤN ĐẦU TƯ THẢO NGUYÊN XANH
Địa Chỉ: 28B Mai Thị Lựu - Phường Đakao – Quận 1 – Tp. HCM
Website: http://lapduandautu.com.vn/
Website: http://www.lapduan.com.vn/
Homepage: http://thaonguyenxanhgroup.com/
Email: tuvan@lapduandautu.com.vn
Hotline: 0839118552 - 0903034381
Thảo Nguyên Xanh – nơi bắt đầu của những thành công vượt bậc!
Tags: 0918755356, lapduan, thao nguyen xanh, thaonguyenxanh, lap du an, lap du an dau tu, tu van lap du an, lập dự án, lập dự án đầu tư, thao nguyen xanh, thao nguyen xanh group, cong ty moi truong, lap du an dau tu thao nguyen xanh, lap du an dau tu mien phi, tai lieu lap du an, lap du an tai lieu
The document discusses the debate around whether governments should ban dangerous sports. While some argue that dangerous sports should be prohibited due to risks to participants and spectators, others counter that people should have the freedom to choose risky activities. The author's view is that governments should regulate, rather than ban, dangerous sports to minimize risks, and impose special protections for minors.
O documento fornece instruções para usar o scanner da impressora multifuncional Ricoh Aficio MP 161, incluindo links para tutoriais, manuais, drivers e informações de suporte técnico.
O documento descreve três modelos de impressoras da Ricoh: o MP1500, MP1600 e MP1900. Estes modelos compartilham o mesmo cilindro de imagem, mas podem ter especificações ligeiramente diferentes.
1. O documento discute os diferentes tipos de sensores de imageamento remoto, incluindo sensores de varredura transversal e ao longo da trajetória do satélite.
2. Sensores de varredura transversal usam um espelho rotativo para varredura em linhas perpendiculares à direção do satélite, enquanto sensores de varredura ao longo da trajetória usam uma matriz linear de detectores empurrada ao longo da órbita.
3. O tempo de permanência, que afeta a qualidade da imagem, é maior para sensores
O documento descreve impressoras e scanners, dispositivos periféricos que respectivamente imprimem e digitalizam textos e imagens. Impressoras evoluíram de máquinas de escrever para se especializarem em diferentes tipos de gráficos, enquanto scanners digitalizam conteúdo impresso para computadores. O documento também menciona o inventor dos scanners, Rudolf Hell.
Este documento proporciona información sobre el mantenimiento de la máquina Xerox WorkCentre 5020/DN, incluyendo la sustitución de consumibles como el tóner y el cartucho del cilindro, y los procedimientos de limpieza. También describe los entornos de red compatibles y cómo acceder a las funciones de la máquina a través de Servicios de Internet de CentreWare.
Este documento fornece um guia sobre os diferentes tipos de scanners, incluindo scanners de mesa, scanners para filmes e transparências, scanners com alimentação de folhas, scanners de mão e portáteis. Ele também explica termos técnicos importantes como sensores, resolução, conexões e detecção de dupla alimentação para ajudar o leitor a escolher o scanner certo para suas necessidades.
Suratgarh thermal power station is the first super thermal power station in Rajasthan with a total installed capacity of 1500 MW. It is located 27 km from Suratgarh town in Ganganagar District. The power station has 6 stages totaling 1500 MW of capacity. It uses coal from local mines to power steam turbines that generate electricity, with the electricity being distributed by Rajasthan Vidhyut Utpadan Nigam Limited. The plant utilizes a steam cycle to generate power from coal.
Este documento descreve o circuito documental de uma organização, incluindo os tipos de correspondência (recebida, expedida, interna), seus processos e fluxos. Explica como a tecnologia pode apoiar o trabalho administrativo e fornece detalhes sobre normas e registros de correspondência.
Este documento proporciona información sobre los procesos y herramientas utilizadas en la catalogación y organización de recursos en una biblioteca, incluyendo la descripción, clasificación, análisis de contenido y registro de diferentes tipos de soportes como libros, recursos electrónicos, material cartográfico, material visual, partituras, grabaciones sonoras y revistas. Explica los elementos clave de la catalogación como puntos de acceso, sistemas de clasificación como CDU, y herramientas como tesauros y listas de términ
Este documento ofrece información sobre el uso de las redes sociales en familia. Explica las principales redes sociales como Facebook, Twitter e Instagram, así como sus ventajas y riesgos. También proporciona consejos sobre la comunicación en familia, la privacidad y el control parental en redes sociales. Finalmente, incluye recursos para obtener más información y ayuda sobre este tema.
Ricoh aficio 700 a292,a293,a292p,a293p,b098 service manual (aficio 551 - 70...nickypanze
This document provides a service manual for Ricoh copier models A292, A293, A292P, A293P, and B098. It contains information on specifications, mechanical components, electrical components, paper paths, and copy processes for the copier engines and document feeders. It also provides detailed descriptions of functions such as scanning, image processing, laser exposure, and drum unit process control. The manual is intended for use by service technicians who have received Ricoh technical training.
This quick start guide provides basic instructions for setting up and using the machine. It explains important functions and safety precautions. The guide has sections on environmental features, regulations, setup requirements, operation instructions, and legal restrictions. It also lists the machine's components and identifies the names of each part.
New holland e265 c evo tier 3 crawler excavator lc version service repair manualfjjskekdmme
This service manual provides maintenance and repair instructions for the E265C EVO Crawler Excavator. It includes sections covering the engine, hydraulic systems, frames and ballasting, tracks and track suspension, cab climate control, electrical systems, booms, dippers, buckets, and other parts. Technicians should follow the procedures carefully and use special tools whenever possible to safely service the excavator.
New holland e265 c evo tier 3 crawler excavator lc version service repair manualjfdskekdmme
This service manual provides maintenance and repair instructions for the E265C EVO Crawler Excavator. It includes sections covering the engine, hydraulic systems, frames and ballasting, tracks and track suspension, cab climate control, electrical systems, booms, dippers, buckets, and other parts. Technicians should follow the procedures carefully and use special tools whenever possible to safely service the equipment.
New holland e265 c evo tier 3 crawler excavator lc version service repair manualfusjefkskemme
This service manual provides maintenance and repair instructions for the E265C EVO Crawler Excavator. It includes sections covering the engine, hydraulic systems, frames and ballasting, tracks and track suspension, cab climate control, electrical systems, booms, dippers, buckets, and other components. Technicians should follow the procedures carefully and use special tools whenever possible to safely service the equipment.
New holland e265 c evo tier 3 crawler excavator lc version service repair manualuyydfhjjskkmd
This service manual provides maintenance and repair instructions for the E265C EVO Crawler Excavator. It includes sections covering the engine, hydraulic systems, frames and ballasting, tracks and track suspension, cab climate control, electrical systems, booms, dippers, buckets, and other parts. Technicians should follow the procedures carefully and use only approved replacement parts. The manufacturer is not responsible for damages caused by unapproved parts. Specifications are subject to change without notice.
New holland e215 c evo tier 3 crawler excavator (lc version) service repair m...ufjkskemfseol
This document is a service manual for the E215C EVO crawler excavator. It contains sections covering the engine, hydraulic systems, frames and ballasting, tracks and track suspension, cab climate control, electrical systems, booms dippers and buckets, and the platform, cab, bodywork and decals. Each section includes subsections that provide instructions and specifications for maintenance and repair of individual components.
New holland e215 c evo tier 3 crawler excavator (lc version) service repair m...ujfdjjkskkdme
This document is a service manual for the E215C EVO crawler excavator. It contains sections covering the engine, hydraulic systems, frames and ballasting, tracks and track suspension, cab climate control, electrical systems, booms dippers and buckets, and the platform, cab, bodywork and decals. Each section includes subsections that provide instructions and specifications for maintenance and repair of individual components.
New holland e215 c evo tier 3 crawler excavator (lc version) service repair m...fusjefjskefkksem
This document is a service manual for the E215C EVO crawler excavator. It contains sections covering the engine, hydraulic systems, frames and ballasting, tracks and track suspension, cab climate control, electrical systems, booms dippers and buckets, and the platform, cab, bodywork and decals. Each section includes subsections that provide repair and maintenance instructions for specific components of the excavator. The manual emphasizes that all repair and maintenance work must be carried out by qualified dealership personnel according to the procedures in the manual.
New holland e215 c evo tier 3 crawler excavator (lc version) service repair m...fujsjfskekmm
This document is a service manual for the E215C EVO crawler excavator that contains information on the engine, hydraulic systems, frames and ballasting, tracks and track suspension, cab climate control, electrical systems, booms, dippers, buckets, and other components. It provides repair and maintenance instructions for qualified dealership personnel and warns against performing repairs without following the proper procedures.
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The document is a service manual that provides specifications and maintenance information for the engine of a CNH Industrial Italia S.p.A. E215C EVO crawler excavator. It includes sections on the engine and crankcase, cooling system, electrical system, and identification/view of engine components. The manual provides detailed technical data, diagrams, and descriptions to guide servicing and repair work on the excavator engine.
New holland e215 c evo tier 3 crawler excavator (lc version) service repair m...ufjjsjdkkskem
This document is a service manual for the E215C EVO crawler excavator. It contains sections covering the engine, hydraulic systems, frames and ballasting, tracks and track suspension, cab climate control, electrical systems, booms dippers and buckets, and the platform, cab, bodywork and decals. Each section includes subsections that provide instructions and specifications for maintenance and repair of individual components.
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The document is a service manual that provides specifications and maintenance information for the engine of a CNH Industrial Italia S.p.A. E215C EVO crawler excavator. It includes sections on the engine and crankcase, cooling system, electrical system, and identification/view of engine components. The manual provides detailed technical data, diagrams, and descriptions to guide servicing and repair work on the excavator engine.
2002 Sea-Doo RX Service Repair Manual.pdfhuanghunsi151
This document is the 2002 Shop Manual for Sea-Doo GTX DI and GTX 4-TEC watercraft. It contains information on service tools, maintenance, troubleshooting, engine systems, cooling systems, fuel systems, and other components. The manual is arranged into 16 sections and further divided into subsections to aid technicians in repairing and servicing these watercraft models. Illustrations and exploded views are included to identify parts. Safety notices are provided throughout and proper service procedures must be followed.
2002 Sea-Doo XP Service Repair Manual.pdfhuanghunsi151
This document is a 2002 shop manual that provides service and repair information for Sea-Doo GTX DI and GTX 4-TEC watercraft models. It contains sections on safety notices, service tools, maintenance, troubleshooting, engine systems, cooling systems, fuel systems, and other components. Technical specifications and wiring diagrams are also included to assist technicians in repairing these watercraft.
2002 Sea-Doo XP Service Repair Manual.pdfanmeng5037
This document is the 2002 Shop Manual for Sea-Doo GTX DI and GTX 4-TEC watercraft. It contains information on service tools, maintenance, troubleshooting, engine systems, cooling systems, fuel systems, and other components. The manual is arranged into 16 sections and further divided into subsections to aid technicians in repairing and servicing these watercraft models. Illustrations and exploded views are included to identify parts. Safety notices are provided throughout and proper service procedures must be followed.
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2002 Sea-Doo GTI California Service Repair Manual.pdfanmeng5037
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Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
Digital Marketing Trends in 2024 | Guide for Staying AheadWask
https://www.wask.co/ebooks/digital-marketing-trends-in-2024
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Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
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Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfChart Kalyan
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...alexjohnson7307
Predictive maintenance is a proactive approach that anticipates equipment failures before they happen. At the forefront of this innovative strategy is Artificial Intelligence (AI), which brings unprecedented precision and efficiency. AI in predictive maintenance is transforming industries by reducing downtime, minimizing costs, and enhancing productivity.
Digital Banking in the Cloud: How Citizens Bank Unlocked Their MainframePrecisely
Inconsistent user experience and siloed data, high costs, and changing customer expectations – Citizens Bank was experiencing these challenges while it was attempting to deliver a superior digital banking experience for its clients. Its core banking applications run on the mainframe and Citizens was using legacy utilities to get the critical mainframe data to feed customer-facing channels, like call centers, web, and mobile. Ultimately, this led to higher operating costs (MIPS), delayed response times, and longer time to market.
Ever-changing customer expectations demand more modern digital experiences, and the bank needed to find a solution that could provide real-time data to its customer channels with low latency and operating costs. Join this session to learn how Citizens is leveraging Precisely to replicate mainframe data to its customer channels and deliver on their “modern digital bank” experiences.
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In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
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5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Driving Business Innovation: Latest Generative AI Advancements & Success StorySafe Software
Are you ready to revolutionize how you handle data? Join us for a webinar where we’ll bring you up to speed with the latest advancements in Generative AI technology and discover how leveraging FME with tools from giants like Google Gemini, Amazon, and Microsoft OpenAI can supercharge your workflow efficiency.
During the hour, we’ll take you through:
Guest Speaker Segment with Hannah Barrington: Dive into the world of dynamic real estate marketing with Hannah, the Marketing Manager at Workspace Group. Hear firsthand how their team generates engaging descriptions for thousands of office units by integrating diverse data sources—from PDF floorplans to web pages—using FME transformers, like OpenAIVisionConnector and AnthropicVisionConnector. This use case will show you how GenAI can streamline content creation for marketing across the board.
Ollama Use Case: Learn how Scenario Specialist Dmitri Bagh has utilized Ollama within FME to input data, create custom models, and enhance security protocols. This segment will include demos to illustrate the full capabilities of FME in AI-driven processes.
Custom AI Models: Discover how to leverage FME to build personalized AI models using your data. Whether it’s populating a model with local data for added security or integrating public AI tools, find out how FME facilitates a versatile and secure approach to AI.
We’ll wrap up with a live Q&A session where you can engage with our experts on your specific use cases, and learn more about optimizing your data workflows with AI.
This webinar is ideal for professionals seeking to harness the power of AI within their data management systems while ensuring high levels of customization and security. Whether you're a novice or an expert, gain actionable insights and strategies to elevate your data processes. Join us to see how FME and AI can revolutionize how you work with data!
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
9. The Service Manual contains information
regarding service techniques, procedures,
processes and spare parts of office equipment
distributed by Ricoh Corporation. Users of this
manual should be either service trained or
certified by successfully completing a Ricoh
Technical Training Program.
Untrained and uncertified users utilizing
information contained in this service manual to
repair or modify Ricoh equipment risk personal
injury, damage to property or loss of warranty
protection.
Ricoh Corporation
WARNING
10.
11. LEGEND
PRODUCT CODE COMPANY
GESTETNER LANIER RICOH SAVIN
*B245 DSm715 LD315 MP 1500 N/A
B276 DSm716 LD316 Aficio MP 1600 9016
B277 DSm721d LD320d Aficio MP 2000 9021d
B276 DSm716s LD316L Aficio MP 1600L 9016s
B277 DSm721ds LD320dL Aficio MP 2000L 9021ds
*Latin America Only
DOCUMENTATION HISTORY
REV. NO. DATE COMMENTS
* 06/2006 Original Printing
1 02/2007 B276/B277 Launch
2 02/2007 Added product launch model numbers
14. 2.2 HOW TO RESET THE PM COUNTER..................................................2-4
REPLACEMENT AND ADJUSTMENT
3. REPLACEMENT AND ADJUSTMENT....................................3-1
3.1 GENERAL CAUTIONS..........................................................................3-1
3.1.1 PCU (PHOTOCONDUCTOR UNIT) .............................................3-1
3.1.2 TRANSFER ROLLER...................................................................3-1
3.1.3 SCANNER UNIT...........................................................................3-1
3.1.4 LASER UNIT ................................................................................3-2
3.1.5 FUSING UNIT ..............................................................................3-2
3.1.6 PAPER FEED...............................................................................3-2
3.2 SPECIAL TOOLS AND LUBRICANTS ..................................................3-3
3.3 EXTERIOR COVERS & OPERATION PANEL......................................3-4
3.3.1 REAR COVER..............................................................................3-4
3.3.2 REAR LOWER COVER (TWO-TRAY MODELS ONLY) ..............3-4
3.3.3 COPY TRAY.................................................................................3-5
3.3.4 UPPER COVERS.........................................................................3-5
3.3.5 LEFT COVER...............................................................................3-6
3.3.6 FRONT COVER ...........................................................................3-6
3.3.7 FRONT RIGHT COVER ...............................................................3-7
3.3.8 RIGHT REAR COVER..................................................................3-7
3.3.9 RIGHT DOOR (DUPLEX UNIT (B269/B277)) ..............................3-8
3.3.10 BY-PASS TRAY .........................................................................3-8
3.3.11 LEFT LOWER COVER (TWO-TRAY MODELS ONLY)..............3-9
3.3.12 RIGHT LOWER COVER (TWO-TRAY MODELS ONLY) ...........3-9
3.3.13 PLATEN COVER SENSOR......................................................3-10
3.4 SCANNER UNIT..................................................................................3-11
3.4.1 EXPOSURE GLASS/DF EXPOSURE GLASS...........................3-11
3.4.2 LENS BLOCK.............................................................................3-11
3.4.3 LAMP STABILIZER BOARD AND EXPOSURE LAMP ..............3-12
3.4.4 ORIGINAL WIDTH/LENGTH SENSOR......................................3-13
3.4.5 SCANNER MOTOR....................................................................3-15
3.4.6 SCANNER HOME POSITION SENSOR....................................3-16
3.4.7 ADJUSTING SCANNER POSITIONS ........................................3-17
3.5 LASER UNIT .......................................................................................3-21
3.5.1 LOCATION OF CAUTION DECAL .............................................3-21
3.5.2 TONER SHIELD GLASS............................................................3-21
3.5.3 LASER UNIT ..............................................................................3-22
3.5.4 LD UNIT .....................................................................................3-23
3.5.5 POLYGONAL MIRROR MOTOR................................................3-23
3.5.6 LASER UNIT ALIGNMENT ADJUSTMENT ...............................3-24
3.6 PCU SECTION....................................................................................3-26
3.6.1 PCU............................................................................................3-26
3.6.2 PICK-OFF PAWLS AND TONER DENSITY SENSOR...............3-27
3.6.3 OPC DRUM................................................................................3-28
3.6.4 CHARGE ROLLER AND CLEANING BRUSH ...........................3-29
3.6.5 CLEANING BLADE ....................................................................3-29
B245/B276/B277 ii SM
15. 3.6.6 DEVELOPER .............................................................................3-30
3.6.7 AFTER REPLACEMENT OR ADJUSTMENT ............................3-31
3.7 TONER SUPPLY MOTOR...................................................................3-32
3.8 PAPER FEED SECTION.....................................................................3-33
3.8.1 PAPER FEED ROLLER .............................................................3-33
3.8.2 FRICTION PAD ..........................................................................3-33
3.8.3 PAPER END SENSOR...............................................................3-34
3.8.4 EXIT SENSOR ...........................................................................3-34
3.8.5 BY-PASS FEED ROLLER AND PAPER END SENSOR............3-35
3.8.6 REGISTRATION ROLLER .........................................................3-36
3.8.7 BY-PASS PAPER SIZE SWITCH...............................................3-37
3.8.8 REGISTRATION CLUTCH .........................................................3-38
3.8.9 REGISTRATION SENSOR ........................................................3-38
3.8.10 UPPER PAPER FEED CLUTCH AND BY-PASS FEED CLUTCH..
.................................................................................................3-39
3.8.11 RELAY CLUTCH ......................................................................3-39
3.8.12 RELAY SENSOR......................................................................3-40
3.8.13 LOWER PAPER FEED CLUTCH (TWO-TRAY MODELS ONLY)
.................................................................................................3-40
3.8.14 VERTICAL TRANSPORT SENSOR (TWO-TRAY MODELS ONLY)
.................................................................................................3-41
3.8.15 PAPER SIZE SWITCH .............................................................3-41
3.9 IMAGE TRANSFER.............................................................................3-42
3.9.1 IMAGE TRANSFER ROLLER ....................................................3-42
3.9.2 IMAGE DENSITY SENSOR .......................................................3-42
3.10 FUSING...........................................................................................3-44
3.10.1 FUSING UNIT ..........................................................................3-44
3.10.2 THERMISTOR..........................................................................3-44
3.10.3 FUSING LAMPS.......................................................................3-45
3.10.4 HOT ROLLER STRIPPER PAWLS ..........................................3-46
3.10.5 HOT ROLLER ..........................................................................3-46
3.10.6 THERMOSTAT.........................................................................3-47
3.10.7 PRESSURE ROLLER AND BUSHINGS ..................................3-47
3.10.8 NIP BAND WIDTH ADJUSTMENT...........................................3-48
3.10.9 CLEANING ROLLER................................................................3-49
3.11 DUPLEX UNIT (DUPLEX MODELS B269/B277 ONLY)..................3-50
3.11.1 DUPLEX EXIT SENSOR..........................................................3-50
3.11.2 DUPLEX ENTRANCE SENSOR ..............................................3-50
3.11.3 DUPLEX INVERTER SENSOR................................................3-51
3.11.4 DUPLEX TRANSPORT MOTOR..............................................3-51
3.11.5 DUPLEX INVERTER MOTOR..................................................3-52
3.11.6 DUPLEX CONTROL BOARD...................................................3-52
3.12 OTHER REPLACEMENTS..............................................................3-53
3.12.1 QUENCHING LAMP.................................................................3-53
3.12.2 HIGH-VOLTAGE POWER SUPPLY BOARD...........................3-53
3.12.3 BICU (BASE-ENGINE IMAGE CONTROL UNIT).....................3-54
3.12.4 MAIN MOTOR..........................................................................3-54
3.12.5 REAR EXHAUST FAN (B269/B277 ONLY)..............................3-55
3.12.6 LEFT EXHAUST FAN...............................................................3-55
SM iii B245/B276/B277
16. 3.12.7 PSU (POWER SUPPLY UNIT).................................................3-56
3.12.8 GEARBOX................................................................................3-57
3.13 COPY ADJUSTMENTS PRINTING/SCANNING.............................3-60
3.13.1 PRINTING ................................................................................3-60
3.13.2 SCANNING ..............................................................................3-62
3.13.3 ADF IMAGE ADJUSTMENT.....................................................3-64
TROUBLESHOOTING
4. TROUBLESHOOTING.............................................................4-1
4.1 SERVICE CALL CONDITIONS .............................................................4-1
4.1.1 SUMMARY...................................................................................4-1
4.1.2 SC CODE DESCRIPTIONS .........................................................4-2
4.2 ELECTRICAL COMPONENT DEFECTS.............................................4-18
4.2.1 SENSORS..................................................................................4-18
4.2.2 SWITCHES ................................................................................4-20
4.3 BLOWN FUSE CONDITIONS .............................................................4-22
4.4 LED DISPLAY .....................................................................................4-23
4.4.1 BICU...........................................................................................4-23
SERVICE TABLES
5. SERVICE TABLES ..................................................................5-1
5.1 SERVICE PROGRAM MODE................................................................5-1
5.1.1 HOW TO ENTER THE SP MODE................................................5-1
5.2 SP MODE TABLES ...............................................................................5-4
5.2.1 SP1-XXX (FEED) .........................................................................5-4
5.2.2 SP2-XXX (DRUM) ........................................................................5-8
5.2.3 SP4-XXX (SCANNER) ...............................................................5-15
5.2.4 SP5-XXX (MODE) ......................................................................5-23
5.2.5 SP6-XXX (PERIPHERALS)........................................................5-28
5.2.6 SP7-XXX (DATA LOG)...............................................................5-30
5.2.7 SP8-XXX (HISTORY).................................................................5-35
5.2.8 SP9-XXX (ETC.).........................................................................5-40
5.3 USING SP MODES .............................................................................5-41
5.3.1 ADJUSTING REGISTRATION AND MAGNIFICATION .............5-41
5.3.2 ID SENSOR ERROR ANALYSIS (SP 2221) ..............................5-42
5.3.3 DISPLAY APS DATA (SP 4301 1)..............................................5-43
5.3.4 MEMORY CLEAR ......................................................................5-44
5.3.5 INPUT CHECK (SP 5803) ..........................................................5-46
5.3.6 OUTPUT CHECK (SP 5804) ......................................................5-50
5.3.7 SERIAL NUMBER INPUT (SP 5811) .........................................5-52
5.3.8 NVRAM DATA UPLOAD/DOWNLOAD (SP 5824/5825) ............5-52
5.3.9 FIRMWARE UPDATE PROCEDURE.........................................5-55
5.3.10 TEST PATTERN PRINT (SP 5902 1).......................................5-59
5.3.11 PAPER JAM COUNTERS (SP 7504) .......................................5-61
5.3.12 SMC PRINT (SP 5990).............................................................5-62
B245/B276/B277 iv SM
17. 5.3.13 ORIGINAL JAM HISTORY DISPLAY (SP 7508) ......................5-63
5.3.14 ADF APS SENSOR OUTPUT DISPLAY (SP 6901) .................5-63
DETAILED DESCRIPTIONS
6. DETAILED SECTION DESCRIPTIONS...................................6-1
6.1 OVERVIEW...........................................................................................6-1
6.1.1 COMPONENT LAYOUT...............................................................6-1
6.1.2 PAPER PATH...............................................................................6-2
6.1.3 DRIVE LAYOUT...........................................................................6-3
6.2 BOARD STRUCTURE...........................................................................6-4
6.2.1 BLOCK DIAGRAM........................................................................6-4
6.2.2 BICU (BASE ENGINE AND IMAGE CONTROL UNIT) ................6-5
6.2.3 SBU (SENSOR BOARD UNIT) ....................................................6-5
6.3 COPY PROCESS OVERVIEW..............................................................6-6
6.4 SCANNING............................................................................................6-8
6.4.1 OVERVIEW..................................................................................6-8
6.4.2 SCANNER DRIVE........................................................................6-9
6.4.3 ORIGINAL SIZE DETECTION IN PLATEN MODE.....................6-10
6.5 IMAGE PROCESSING........................................................................6-13
6.5.1 OVERVIEW................................................................................6-13
6.5.2 SBU (SENSOR BOARD UNIT) ..................................................6-14
6.5.3 IPU (IMAGE PROCESSING UNIT) ............................................6-15
6.5.4 VIDEO CONTROL UNIT (VCU)..................................................6-25
6.6 LASER EXPOSURE............................................................................6-27
6.6.1 OVERVIEW................................................................................6-27
6.6.2 AUTO POWER CONTROL (APC)..............................................6-28
6.6.3 LD SAFETY SWITCH.................................................................6-29
6.7 PHOTOCONDUCTOR UNIT (PCU) ....................................................6-30
6.7.1 OVERVIEW................................................................................6-30
6.7.2 DRIVE ........................................................................................6-31
6.8 DRUM CHARGE .................................................................................6-32
6.8.1 OVERVIEW................................................................................6-32
6.8.2 CHARGE ROLLER VOLTAGE CORRECTION..........................6-33
6.8.3 ID SENSOR PATTERN PRODUCTION TIMING........................6-34
6.8.4 DRUM CHARGE ROLLER CLEANING......................................6-34
6.9 DEVELOPMENT .................................................................................6-35
6.9.1 OVERVIEW................................................................................6-35
6.9.2 DRIVE ........................................................................................6-36
6.9.3 DEVELOPER MIXING................................................................6-36
6.9.4 DEVELOPMENT BIAS ...............................................................6-37
6.9.5 TONER SUPPLY........................................................................6-38
6.9.6 TONER SUPPLY MECHANISM.................................................6-39
6.9.7 TONER DENSITY CONTROL....................................................6-39
6.9.8 TONER SUPPLY IN ABNORMAL SENSOR CONDITIONS.......6-43
6.9.9 TONER NEAR END/END DETECTION AND RECOVERY........6-44
6.10 DRUM CLEANING AND TONER RECYCLING...............................6-45
6.10.1 DRUM CLEANING ...................................................................6-45
SM v B245/B276/B277
18. 6.10.2 TONER RECYCLING...............................................................6-46
6.11 PAPER FEED..................................................................................6-47
6.11.1 OVERVIEW..............................................................................6-47
6.11.2 PAPER FEED DRIVE MECHANISM........................................6-48
6.11.3 PAPER FEED AND SEPARATION MECHANISM ...................6-48
6.11.4 PAPER LIFT MECHANISM......................................................6-49
6.11.5 PAPER END DETECTION.......................................................6-49
6.11.6 PAPER SIZE DETECTION.......................................................6-50
6.11.7 SIDE FENCES .........................................................................6-52
6.11.8 PAPER REGISTRATION .........................................................6-52
6.12 IMAGE TRANSFER AND PAPER SEPARATION...........................6-54
6.12.1 OVERVIEW..............................................................................6-54
6.12.2 IMAGE TRANSFER CURRENT TIMING..................................6-55
6.12.3 TRANSFER ROLLER CLEANING............................................6-56
6.12.4 PAPER SEPARATION MECHANISM ......................................6-56
6.13 IMAGE FUSING AND PAPER EXIT................................................6-58
6.13.1 OVERVIEW..............................................................................6-58
6.13.2 FUSING UNIT DRIVE AND RELEASE MECHANISM..............6-59
6.13.3 FUSING ENTRANCE GUIDE SHIFT........................................6-60
6.13.4 PRESSURE ROLLER ..............................................................6-61
6.13.5 FUSING TEMPERATURE CONTROL .....................................6-61
6.13.6 OVERHEAT PROTECTION .....................................................6-63
6.14 DUPLEX UNIT.................................................................................6-65
6.14.1 OVERALL.................................................................................6-65
6.14.2 DRIVE MECHANISM................................................................6-66
6.14.3 BASIC OPERATION.................................................................6-66
6.14.4 FEED IN AND EXIT MECHANISM...........................................6-69
6.15 ENERGY SAVER MODES OF BASIC MACHINES.........................6-70
6.15.1 OVERVIEW..............................................................................6-70
6.15.2 AOF..........................................................................................6-71
6.15.3 TIMERS....................................................................................6-71
6.15.4 RECOVERY .............................................................................6-71
6.16 ENERGY SAVER MODES OF DDST MACHINES..........................6-72
6.16.1 OVERVIEW..............................................................................6-72
6.16.2 AOF..........................................................................................6-73
6.16.3 TIMERS....................................................................................6-73
6.16.4 RECOVERY .............................................................................6-73
SPECIFICATIONS
7. SPECIFICATIONS ...................................................................7-1
7.1 GENERAL SPECIFICATIONS...............................................................7-1
7.2 SUPPORTED PAPER SIZES................................................................7-5
7.2.1 ORIGINAL SIZE DETECTION......................................................7-5
7.2.2 PAPER FEED AND EXIT .............................................................7-7
7.3 MACHINE CONFIGURATION.............................................................7-10
7.4 OPTIONAL EQUIPMENT ....................................................................7-12
7.4.1 ARDF..........................................................................................7-12
B245/B276/B277 vi SM
19. 7.4.2 ADF ............................................................................................7-12
7.4.3 ONE-TRAY PAPER TRAY UNIT ................................................7-13
7.4.4 TWO-TRAY PAPER TRAY UNIT ...............................................7-13
7.4.5 ONE-BIN TRAY .........................................................................7-14
DOCUMENT FEEDER (B813)
SEE SECTION B813 FOR DETAILED TABLE OF CONTENTS
ARDF (B814)
SEE SECTION B814 FOR DETAILED TABLE OF CONTENTS
DDST UNIT (B865/B866)
SEE SECTION B865/B866 FOR DETAILED TABLE OF CONTENTS
MFP EXPANSION CONTROLLER BOX/PRINTER
SCANNER/FAX (B843/B867/B868)
SEE SECTION B843/B867/B868 FOR DETAILED TABLE OF CONTENTS
PRINTER/SCANNER UNIT (B867)
SEE SECTION B867 FOR DETAILED TABLE OF CONTENTS
FAX OPTION (B868)
SEE SECTION B868 FOR DETAILED TABLE OF CONTENTS
SM vii B245/B276/B277
20.
21. Read This First
Safety Notices and Symbols & Abbreviations
Important Safety Notices
Prevention of Physical Injury
1. Before disassembling or assembling parts of the copier and peripherals,
make sure that the power cord is unplugged.
2. The wall outlet should be near the copier and easily accessible.
3. Note that some components of the copier and the paper tray unit are
supplied with electrical voltage even if the main power switch is turned off.
4. If a job has started before the copier completes the warm-up or initializing
period, keep hands away from the mechanical and electrical components
because the starts making copies as soon as the warm-up period is
completed.
5. The inside and the metal parts of the fusing unit become extremely hot
while the copier is operating. Be careful to avoid touching those
components with your bare hands.
Health Safety Conditions
Toner and developer are non-toxic, but if you get either of them in your eyes by accident, it
may cause temporary eye discomfort. Try to remove with eye drops or flush with water as
first aid. If unsuccessful, get medical attention.
Observance of Electrical Safety Standards
The copier and its peripherals must be installed and maintained by a customer service
representative who has completed the training course on those models.
Safety and Ecological Notes for Disposal
1. Do not incinerate toner bottles or used toner. Toner dust may ignite
suddenly when exposed to an open flame.
2. Dispose of used toner, developer, and organic photoconductors in
accordance with local regulations. (These are non-toxic supplies.)
3. Dispose of replaced parts in accordance with local regulations.
22. Laser Safety
The Center for Devices and Radiological Health (CDRH) prohibits the repair of laser-based
optical units in the field. The optical housing unit can only be repaired in a factory or at a
location with the requisite equipment. The laser subsystem is replaceable in the field by a
qualified Customer Engineer. The laser chassis is not repairable in the field. Customer
Engineers are therefore directed to return all chassis and laser subsystems to the factory
or service depot when replacement of the optical subsystem is required.
-1. Use of controls, or adjustment, or performance of procedures other than
those specified in this manual may result in hazardous radiation exposure.
WARNING FOR LASER UNIT
WARNING: Turn off the main switch before attempting any of the procedures in the
Laser Unit section. Laser beams can seriously damage your eyes.
CAUTION MARKING:
Symbols and Abbreviations
This manual uses several symbols and abbreviations. The meaning of those symbols and
abbreviations are as follows:
See or Refer to
Clip ring
Screw
Connector
SEF Short Edge Feed
LEF Long Edge Feed
23. INSTALLATION
DOCUMENT FEEDER B813
ARDF B814
FAX OPTION B868
PREVENTIVE MAINTENANCE
REPLACEMENT AND ADJUSTMENT
TROUBLESHOOTING
DDST UNIT B865/B866
PRINTER/SCANNER UNIT B867
MFP EXPANSION B843/B867/B868
SERVICE TABLES
DETAILED DESCRIPTIONS
SPECIFICATIONS
POSITION 1
TAB
POSITION 2
TAB
POSITION 3
TAB
POSITION 4
TAB
POSITION 5
TAB
POSITION 6
TAB
POSITION 7
TAB
POSITION 8
TAB
27. Installation Requirements
SM 1-1 B245/B276/B277
Installation
1. INSTALLATION
1.1 INSTALLATION REQUIREMENTS
ƒ Before installing options, please do the following:
ƒ If there is a printer option in the machine, print out all data in the printer buffer.
ƒ Turn off the main switch and disconnect the power cord, the telephone line,
and the network cable.
1.1.1 ENVIRONMENT
–Temperature and Humidity Chart–
ƒ Temperature Range: 10C to 32C (50F to 89.6F)
ƒ Humidity Range: 15% to 80% RH
ƒ Ambient Illumination: Less than 1,500 lux (do not expose to direct sunlight)
ƒ Ventilation: 3 times/hr/person or more
ƒ Ambient Dust: Less than 0.075 mg/m3 (2.0 x 10-6 oz/yd3)
ƒ Avoid areas exposed to sudden temperature changes:
1) Areas directly exposed to cool air from an air conditioner.
2) Areas directly exposed to heat from a heater.
ƒ Do not place the machine in areas where it can get exposed to corrosive gases.
ƒ Do not install the machine at any location over 2,000 m (6,500 ft.) above sea level.
28. Installation Requirements
ƒ Place the machine on a strong and level base. (Inclination on any side should be no
more than 5 mm.)
ƒ Do not place the machine where it is subjected to strong vibrations.
1.1.2 MACHINE LEVEL
Front to back: Within 5 mm (0.2") of level
Right to left: Within 5 mm (0.2") of level
1.1.3 MINIMUM SPACE REQUIREMENTS
Place the copier near the power source, providing clearance as shown:
A (front): 750 mm (30")
B (left): 150 mm (6")
C (rear): 50 mm (2")
D (right): 250 mm (10")
The recommended 750 mm front space is sufficient to allow the paper tray to be pulled out.
Additional front space is required to allow operators to stand at the front of the machine.
1.1.4 POWER REQUIREMENTS
ƒ Make sure that the wall outlet is near the machine and easily accessible. After.
completing installation, make sure the plug fits firmly into the outlet.
ƒ Avoid multi-wiring.
ƒ Be sure to ground the machine
Input voltage:
North and South America, Taiwan: 110 – 120 V, 60 Hz, 12 A
Europe, Asia: 220 – 240 V, 50/60 Hz, 7 A
B245/B276/B277 1-2 SM
29. Copier Installation
SM 1-3 B245/B276/B277
Installation
1.2 COPIER INSTALLATION
1.2.1 POWER SOCKETS FOR PERIPHERALS
ƒ Make sure to plug the cables into the correct sockets.
[A]: Socket for ADF/ARDF (Rated voltage output max. DC24 V)
[B]: Socket for paper tray unit (Rated voltage output max. DC24 V)
1.2.2 ACCESSORY CHECK
Check that you have the accessories in this list.
Basic Machines
No. Description Q’ty
1 NECR-English /Multi-language (-17, -27,-19, -29) 1
2 EU Safety Sheet (-27, -22,-24, -26) 1
3 Laser Decal (-27, -22,-24, -26, -19, -28, -29) 1
4 Model Name Plate (-22,-29) 1
30. Copier Installation
DDST Machines
No. Description Q’ty
1 NECR-English /Multi-language (-19, -29) 1
2 Laser Decal (-19, -29) 1
3 Model Name Plate (-19, -29) 1
4 Operating Instructions (-19, -29) 1
5 General Setting Guide (-19, -29) 1
6 Copy Reference (-19, -29) 1
7 Printer/Scanner Reference (-19, -29) 1
8 Network Reference (-19, -29) 1
9 Quick Guide Copy Edition (-19, -29) 1
10 Quick Guide Printer/Scanner Edition (-19, -29) 1
11 Manual for this machine (-19, -29) 1
12 Safety Information (-19, -29) 1
1.2.3 INSTALLATION PROCEDURE
ƒ Unplug the machine power cord before starting the following procedure.
1. Remove filament tape and other padding.
B245/B276/B277 1-4 SM
31. Copier Installation
SM 1-5 B245/B276/B277
Installation
2. Open the front door and remove the toner bottle holder [A]
3. Open the right door [B], and remove the PCU (photoconductor unit) [C].
4. Separate the PCU into the upper part and the lower part ( x 5).
5. Put a sheet of paper on a level surface and place the upper part on it.
32. Copier Installation
ƒ This prevents foreign material from getting on the sleeve rollers
6. Distribute a pack of developer [D] to all openings equally.
ƒ Do not spill the developer on the gears [E]. If you have spilled it, remove the
developer by using a magnet or magnetized screwdriver.
ƒ Do not turn the gear [E] too much. The developer may spill.
7. Reassemble the PCU and reinstall it.
8. Shake the toner bottle [F] several times. (Do not remove the bottle cap [G] before
you shake the bottle.)
9. Remove the bottle cap [G] and install the bottle on the holder. (Do not touch the
inner cap [H].)
10. Set the holder (with the toner bottle) in the machine.
B245/B276/B277 1-6 SM
33. Copier Installation
SM 1-7 B245/B276/B277
Installation
11. Pull out the paper tray [I] and turn the paper size dial to the appropriate size.
Adjust the positions of the end and side guides.
ƒ To move the side guides, release the green lock on the rear side guide.
12. Install the optional ARDF, ADF, or platen cover.
13. Plug in the main power cord and turn on the main switch.
14. Activate the SP mode and execute "Devlpr Initialize" (SP 2214 1).
15. Wait until the message "Completed" shows (about 45 seconds).
16. Activate the User Tools and select the menu "Language."
17. Specify a language. This language is used for the operation panel.
18. Load the paper in the paper tray and make a full size copy, and make sure the
side-to-side and leading edge registrations are correct.
34. Platen Cover Installation
1.3 PLATEN COVER INSTALLATION
1.3.1 ACCESSORY CHECK
Check that you have the accessories indicated below.
No. Description Q’ty
1 Stepped Screw 2
1.3.2 INSTALLATION PROCEDURE
ƒ Unplug the machine power cord before starting the following procedure.
Install the platen cover ( x 2).
B245/B276/B277 1-8 SM
35. ARDF Installation
SM 1-9 B245/B276/B277
Installation
1.4 ARDF INSTALLATION
1.4.1 ACCESSORY CHECK
Check the quantity and condition of the accessories against the following list.
No. Description Q’ty
1 Scale Guide 1
2 DF Exposure Glass 1
3 Stud Screw 2
4 Knob Screw 2
5 Original Size Decal 2
6 Screwdriver Tool 1
7 Attention Decal—Top Cover 1
8 Stamp Cartridge 1
9 Installation Procedure 1
1.4.2 INSTALLATION PROCEDURE
ƒ Unplug the copier power cord before starting the following procedure.
36. ARDF Installation
1. Remove the strips of tape.
2. Remove the left scale [A] ( x 2).
3. Place the DF exposure glass [B] on the glass holder. Make sure that the white
mark [C] is on the bottom at the front end.
4. Peel off the backing [D] of the double-sided tape attached to the rear side of the
scale guide [E], then install the scale guide ( x 2 [removed in step 2]).
5. Install the two stud screws [F].
6. Mount the ARDF on the copier, and then slide it to the front.
B245/B276/B277 1-10 SM
37. ARDF Installation
SM 1-11 B245/B276/B277
Installation
7. Secure the ARDF unit with the knob screws [G].
8. Connect the cable [H] to the copier.
9. Attach the appropriate original size decal [I] as shown.
10. Attach an attention decal to the top cover.
ƒ The attention decals in the package are written in different languages.
38. ARDF Installation
11. Open the ARDF [J].
12. Install the stamp cartridge [K] to the ARDF.
13. Make a full size copy, and check that the side-to-side and leading edge
registrations are correct. If they are not, adjust the side-to-side and leading edge
registrations. ( p.3-64)
B245/B276/B277 1-12 SM
39. ADF Installation
SM 1-13 B245/B276/B277
Installation
1.5 ADF INSTALLATION
1.5.1 ACCESSORY CHECK
Check the quantity and condition of the accessories against the following list.
No. Description Q’ty
1 Scale Guide 1
2 DF Exposure Glass 1
3 Stud Screw 2
4 Fixing Screw 2
5 Original Size Decal 2
6 Screwdriver Tool 1
7 Attention Decal—Top Cover 1
8 Stamp Cartridge 1
9 Installation Procedure 1
1.5.2 INSTALLATION PROCEDURE
ƒ Unplug the machine power cord before starting the following procedure.
40. ADF Installation
1. Remove the strips of tape.
2. Remove the left scale [A] ( x 2).
3. Place the DF exposure glass [B] on the glass holder. Make sure that the white
mark [C] is on the bottom at the front end.
4. Peel off the backing [D] of the double-sided tape attached to the rear side of the
scale guide [E], then install the scale guide ( x 2 [removed in step 2]).
5. Install the two stud screws [F].
6. Mount the ADF on the copier, and then slide it to the front.
B245/B276/B277 1-14 SM
41. ADF Installation
SM 1-15 B245/B276/B277
Installation
7. Secure the ADF unit with the fixing screws [G].
8. Connect the cable [H] to the copier.
9. Attach the appropriate scale decal [I] as shown.
10. Attach an attention decal to the top cover.
ƒ The attention decals in the package are written in different languages.
42. ADF Installation
11. Open the ADF [J].
12. Install the stamp cartridge [K] to the ADF
13. Turn the main power switch on. Then check if the document feeder works
properly.
14. Make a full size copy, and check that the side-to-side and leading edge
registrations are correct. If they are not, adjust the side-to-side and leading edge
registrations. ( p.3-64).
B245/B276/B277 1-16 SM
43. Two-tray Paper Tray Unit Installation
SM 1-17 B245/B276/B277
Installation
1.6 TWO-TRAY PAPER TRAY UNIT INSTALLATION
1.6.1 ACCESSORY CHECK
Check the quantity and condition of the accessories against the following list.
No. Description Q’ty
1 Screw – M4x10 10
2 Unit Holder 2 x 2 pieces
3 Adjuster 1
4 Unit Holder 2
1.6.2 INSTALLATION PROCEDURE
ƒ If the optional printer unit is installed:
ƒ Print out all data in the printer buffer.
ƒ Disconnect the network cable.
ƒ Unplug the machine power cord before starting the following procedure.
1. Remove the strips of tape. Make sure that you have removed all the strips of tape
and all the pieces of cardboard.
44. Two-tray Paper Tray Unit Installation
ƒ After removing the tape that secures the peripheral components and
cardboard to the paper tray, make sure that there is no tape and/or tape reside
remaining on the tray.
2. Attach the adjuster [A] to the base plate as shown.
ƒ This step is not necessary if a cabinet is installed.
3. Remove the cover [B] (1 rivet).
B245/B276/B277 1-18 SM
45. Two-tray Paper Tray Unit Installation
SM 1-19 B245/B276/B277
Installation
4. Set the copier on the paper tray unit.
ƒ Before placing the copier on the paper tray unit, make sure that the harness
[C] is securely routed. The paper tray unit does not function properly if the
harness is damaged.
5. One-tray copier model (B268/B276): Remove the 1st tray cassette [D].
Two-tray copier models (B269/B277): Remove the 2nd tray cassette [D].
6. Install the two screws [E].
7. Reinstall the tray cassette.
46. Two-tray Paper Tray Unit Installation
8. Install the two brackets [F] ( x 1 (each))
9. Connect the connecting harness [G] to the copier.
ƒ There are cutouts for the plugs on both sides. The left side has one cutout,
and the right side has two.
10. Reinstall the cover removed in step 3 (1 rivet).
11. Install the four brackets with long supports [H] and covers [I](2 screws each).
ƒ These long supports prevent the unit from tipping over.
B245/B276/B277 1-20 SM
47. Two-tray Paper Tray Unit Installation
SM 1-21 B245/B276/B277
Installation
12. Rotate the adjuster (installed at step 2) to fix the machine in place.
ƒ If a cabinet is installed, this step is unnecessary.
13. Load the paper in the paper trays and make full size copies from each tray.
Check if the side-to-side and leading edge registrations are correct. If they are
not, adjust the registrations ( Copy Adjustments Printing/Scanning).
48. One-tray Paper Tray Unit Installation
1.7 ONE-TRAY PAPER TRAY UNIT INSTALLATION
1.7.1 ACCESSORY CHECK
Check the quantity and condition of the accessories against the following list.
No. Description Q’ty
1 Screw – M4 x 10 2
2 Stepped Screw – M4 x 10 2
3 Unit Holder 2
1.7.2 INSTALLATION PROCEDURE
ƒ If the optional printer unit is installed:
ƒ Print out all data in the printer buffer.
ƒ Disconnect the network cable.
ƒ Unplug the machine power cord before starting the following procedure.
1. Remove the strips of tape. Make sure that you have removed all the strips of tape
and all the pieces of cardboard.
B245/B276/B277 1-22 SM
49. One-tray Paper Tray Unit Installation
SM 1-23 B245/B276/B277
Installation
2. Remove the cover [A] (1 rivet).
ƒ Before placing the copier on the paper tray unit, make sure that the harness
[B] is safe. The paper tray unit does not function properly if the harness is
damaged.
3. Set the copier on the paper tray unit.
50. One-tray Paper Tray Unit Installation
4. One-tray copier model (B268/B276): Remove the 1st tray cassette [C].
Two-tray copier models (B269/B277): Remove the 2nd tray cassette [C].
5. Install the two screws [D].
6. Reinstall the tray cassette.
B245/B276/B277 1-24 SM
51. One-tray Paper Tray Unit Installation
SM 1-25 B245/B276/B277
Installation
7. Install the two brackets [E]. (1 stepped screw each).
8. Connect the connecting harness [F] to the copier.
ƒ There are cutouts for the plugs on both sides. The left side has one cutout,
and the right side has two.
9. Reinstall the cover removed in step 2.
10. Load the paper in the paper tray and make full size copies from tray. Check if the
side-to-side and leading edge registrations are correct. If they are not, adjust the
registrations ( p.3-60).
52. One-Bin Tray Installation
1.8 ONE-BIN TRAY INSTALLATION
1.8.1 ACCESSORY CHECK
Check the quantity and condition of the accessories.
No. Description Q’ty
1 Installation procedure 1
2 One-bin sorter 1
3 Exit tray 1
4 Tapping screw M3 x 6 1
1.8.2 INSTALLATION PROCEDURE
ƒ Installation is for the B277 ONLY.
ƒ Unplug the machine power cord before starting the following procedure.
1. Remove the inverter tray [A].
2. Remove the rail [B] (2 knob screws).
3. Remove the cover [C] (1 rivet).
B245/B276/B277 1-26 SM
53. One-Bin Tray Installation
SM 1-27 B245/B276/B277
Installation
4. Open the front cover [D].
5. Remove the front right cover [E] ( x 1).
6. Disconnect the connector [F].
7. Cut the front cover as shown, to make an opening [G] for the 1-bin tray.
8. Install the 1-bin tray [H].
9. Make sure the connectors [I] are connected firmly.
10. Fasten the screw.
11. Connect the connector [J] that you removed in step 6.
ƒ Make sure that the connector is connected.
54. One-Bin Tray Installation
12. Reattach the front right cover [K].
13. Close the front cover [L].
14. Install the exit tray [M] as follows:
ƒ Keep the front end higher than the rear end.
ƒ Push the left hook into the opening in the copier.
ƒ Push the right hook into the opening in the copier.
15. Pull the support [N] out of the left end of the exit tray.
16. Insert the support into the left end of the paper exit tray [O] (of the copier).
17. Turn the main switch on.
18. Check the operation.
B245/B276/B277 1-28 SM
55. Anti-condensation Heater Installation
SM 1-29 B245/B276/B277
Installation
1.9 ANTI-CONDENSATION HEATER INSTALLATION
ƒ Unplug the machine power cord before starting the following procedure.
1. Remove the exposure glass.
2. Remove the left cover.
3. Pass the connector [A] through the opening [B].
4. Install the anti-condensation heater [C], as shown.
5. Join the connectors [A, D].
6. Clamp the harness with the clamp [E].
7. Reinstall the left cover and exposure glass.
56. Tray Heaters
1.10 TRAY HEATERS
ƒ Unplug the machine power cord before starting the following procedure.
1.10.1 UPPER TRAY HEATER
1. Remove the 1st tray cassette [A].
2. Remove the rear cover.
3. Pass the connector [B] through the opening [C] and install the tray heater [D] (
x 1).
B245/B276/B277 1-30 SM
57. Tray Heaters
SM 1-31 B245/B276/B277
Installation
4. Install the relay harness [E].
5. Fix the harness with the clamp [F].
6. Reinstall the 1st tray cassette and the rear cover.
58. Tray Heaters
1.10.2 LOWER TRAY HEATER (TWO-TRAY MODEL ONLY)
1. Remove the 2nd tray cassette [A].
2. Remove the rear lower cover.
3. B277/B269 only: Remove the DCB [B] with bracket ( x 4, x 3).
4. Pass the connector [C] through the opening [D] and install the tray heater [E] (
x 1).
5. Join the connectors [F].
6. Reinstall the 2nd tray cassette, DCB, and rear lower cover.
B245/B276/B277 1-32 SM
59. Tray Heaters
SM 1-33 B245/B276/B277
Installation
1.10.3 TRAY HEATERS FOR THE OPTIONAL PAPER FEED
UNITS
1. Remove the rear cover [A] for the paper tray unit.
One-tray paper
feed unit:
Two-tray paper
feed unit:
2. Two-tray unit only: Remove the cable guide [B].
60. Tray Heaters
3. Install the clamps [C].
One-tray paper
feed unit:
Two-tray paper
feed unit:
4. Pass the connector [D] through the opening [E].
5. Install the tray heater [F] ( x 1).
B245/B276/B277 1-34 SM
61. Tray Heaters
SM 1-35 B245/B276/B277
Installation
One-tray paper
feed unit:
Two-tray paper
feed unit:
6. Clamp the cables [G], as shown.
7. Join the connectors [H].
8. Two-tray unit only: Reinstall the cable guide.
9. One-tray copier model (B268/B276): Remove the 1st tray cassette.
Two-tray copier models (B269/B277): Remove the 2nd tray cassette.
62. Tray Heaters
10. Remove the two screws [I] and install the two hexagonal socket screws [J].
11. Reinstall the 1st tray/2nd tray(s) and rear cover.
B245/B276/B277 1-36 SM
63. Key Counter Installation
SM 1-37 B245/B276/B277
Installation
1.11 KEY COUNTER INSTALLATION
ƒ Unplug the machine power cord before starting the following procedure.
1. Remove the left cover.
2. Remove the rear cover.
3. Cut the cap [A] with nippers.
4. Punch out the small hole [B] using a screwdriver.
5. Hold the key counter plate nuts [C] on the inside of the key counter bracket [D]
and insert the key counter holder [E].
6. Secure the key counter holder to the bracket ( x 2).
7. Install the key counter cover [F] ( x 2).
64. Key Counter Installation
8. Connect the connector [G] to CN126 on the BICU.
9. Hold the harness with the clamps [H][I][J].
ƒ The relay harness is not included in the key counter bracket accessories.
10. Join the relay harness [K] with the connector [L].
11. Reinstall the rear cover.
B245/B276/B277 1-38 SM
65. Key Counter Installation
SM 1-39 B245/B276/B277
Installation
12. Pass the relay harness through the opening [M] and reinstall the left cover.
13. Install the stepped screw [N].
14. Join the connectors [O].
15. Pass the joined connectors through the opening of the key counter holder
assembly [P], and put the connectors inside the assembly.
16. Hook the key counter holder assembly onto the stepped screw [N]. Check that
the harness is not caught between the left cover and the key counter holder
assembly.
17. Secure the key counter holder assembly with the screw [Q].
66. Key Counter Installation (20 PINS)
1.12 KEY COUNTER INSTALLATION (20 PINS)
Installation Procedure for the Key Counter (Card) Interface Type A (20 Pins).
ƒ Unplug the machine power cord before starting the following procedure.
1. Remove the rear cover.
2. Attach the bridge board as shown [A] (4 screws).
3. Connect the connector [B] to CN140 [C] (13 pins) on the BICU.
4. Clamp the harness in two places [D].
5. Connect the harness for the external key counter device to CN4 (20 pins) on the
bridge board [A].
6. Remove the cutout [H] for a third party vendor’s harness.
7. Reattach the rear cover
B245/B276/B277 1-40 SM
⇒
Rev. 04/2007
67. PCL Option Installation
SM 1-41 B245/B276/B277
Installation
1.13 PCL OPTION INSTALLATION
Installation Procedure for the PCL Option.
ƒ Unplug the machine power cord before starting the following procedure.
1. Turn OFF the main power switch of the machine.
2. Remove the rear cover of the machine.
3. Remove the DDST box cover.
4. Install the PCL dongle [A] in the DDST board
socket as shown below.
5. Turn ON the DipSW2 [B] switch (upper
position).
6. Remove the cover of the IC card slot
on the DDST controller board.
7. Install the PCL IC card in the IC card
slot.
NOTE1: 1) Download the firmware to your IC card from your firmware download site.
2) Part number of firmware is B8955500.
⇒
Rev. 04/2007
[A]
[B]
68. PCL Option Installation
8. Turn ON the main power switch.
NOTE2: 1) LED6 (orange) blinks during this installation.
2) LED5 (red) lights after completion of this installation.
9. Turn OFF the main power switch after completing the installation.
10. Turn OFF the Dip SW2 (lower position).
11. Remove the IC card.
12. Turn ON the main power switch.
13. Output the "Config. Page" (UserTool > Printer Features > List/Test Print > Config.
Page) and confirm if PCL option is correctly installed.
14. Re-install all covers.
B245/B276/B277 1-42 SM
⇒
Rev. 04/2007
71. PM Tables
SM 2-1 B245/B276/B277
Preventive
Maintenance
2. PREVENTIVE MAINTENANCE
2.1 PM TABLES
ƒ After preventive maintenance work, reset the PM counter (SP 7804 1).
ƒ PM intervals (60k, 80k, and 120K) indicate the number of prints.
Key: AN: As necessary C: Clean R: Replace L: Lubricate I: Inspect
Optics
EM 60k 120k AN NOTE
Reflector C Optics cloth
1st mirror C C Optics cloth
2nd mirror C C Optics cloth
3rd mirror C C Optics cloth
Scanner guide rails C Do not use alcohol.
Platen cover
I C
Replace the platen sheet if
necessary.
Blower brush or alcohol
Exposure glass C C Blower brush or alcohol
Toner shield glass C Blower brush
APS sensors C Blower brush
Drum Area
EM 60k 120k AN NOTE
PCU I
Drum R
Developer R
Charge roller R
Cleaning brush (charge roller) R
Cleaning blade (OPC drum) R
Pick-off pawls (OPC drum) R
Transfer roller R
ID sensor C C Blower brush
72. PM Tables
Paper Feed
EM 60k 120k AN NOTE
Paper feed roller (each tray) C R C Clean with water or alcohol.
Friction pad (each tray) C R C Clean with water or alcohol.
Bottom-plate pad (each tray) C C Clean with water or alcohol.
Paper feed roller (bypass tray) C C Clean with water or alcohol.
Friction pad (bypass tray) C C Clean with water or alcohol.
Bottom-plate pad (by-pass tray) C C Clean with water or alcohol.
Registration rollers C C Clean with water or alcohol.
Relay rollers C C Clean with water or alcohol.
Paper feed guides C C Clean with water or alcohol.
Paper-dust Mylar C C Clean with water or alcohol.
Fusing Unit
EM 60k 120k AN NOTE
Hot roller R
Pressure roller R
Pressure roller cleaning roller R
Hot roller bushings I
Pressure-roller bushing R
Hot roller stripper pawls R C Dry cloth
Thermistor C C Dry cloth
Cleaning roller bushing C C Dry cloth
ADF/ARDF
80k AN NOTE
Feed belt R C Clean with water or alcohol.
Separation roller R C Clean with water or alcohol.
Pick-up roller R C Clean with water or alcohol.
Stamp R Replace when necessary.
White plate C Clean with water or alcohol.
DF exposure glass C Clean with water or alcohol.
Platen cover C Clean with water or alcohol.
B245/B276/B277 2-2 SM
73. PM Tables
SM 2-3 B245/B276/B277
Preventive
Maintenance
Paper Tray Unit
60k 120k AN NOTE
Paper feed rollers R C Dry or damp cloth
Bottom-plate pads C C Dry cloth
Paper-feed guides C C Clean with water or alcohol.
Friction pads R C Dry or damp cloth
Relay clutch (B384 only) I
Feed clutches (B384 only) I
Relay roller (B384 only) C C Dry cloth
74. How to Reset the PM Counter
2.2 HOW TO RESET THE PM COUNTER
After preventive maintenance work, reset the PM counter (SP 7804 1) as follows:
1. Activate the SP mode ( p.5-1).
Select SP 7804 1 (Reset–PM Counter).
Press the OK key [A]. The message "Execute" shows.
Press the button [B] below the message "Execute."
The messages "Execute?" followed by "Cancel" and "Execute" show.
B245/B276/B277 2-4 SM
75. How to Reset the PM Counter
SM 2-5 B245/B276/B277
Preventive
Maintenance
To reset the PM counter, press the button [C] below the message "Execute."
Wait until the message "Completed" shows.
Quit the SP mode.
79. General Cautions
SM 3-1 B245/B276/B277
Replacement
Adjustment
3. REPLACEMENT AND ADJUSTMENT
3.1 GENERAL CAUTIONS
Do not turn off the main switch while any of the electrical components are active. Doing so
may result in damage to units (such as the PCU) as they are pulled out or replaced.
3.1.1 PCU (PHOTOCONDUCTOR UNIT)
The PCU consists of the OPC drum, charge roller, development unit, and cleaning
components. Observe the following precautions when handling the PCU.
1. Never touch the drum surface with bare hands. If the drum surface is dirty
or if you have accidentally touched it, wipe it with a dry cloth, or clean it
with wet cotton and then wipe it dry with a cloth.
2. Never use alcohol to clean the drum. Alcohol will dissolve the drum
surface.
3. Store the PCU in a cool dry place.
4. Do not expose the drum to corrosive gases (ammonia, etc.).
5. Do not shake a used PCU, as this may cause toner and developer to spill
out.
6. Dispose of used PCU components in accordance with local regulations.
3.1.2 TRANSFER ROLLER
1. Never touch the surface of the transfer roller with bare hands.
2. Be careful not to scratch the transfer roller, as the surface is easily
damaged.
3.1.3 SCANNER UNIT
1. Use alcohol or glass cleaner to clean the exposure and scanning glass.
This will reduce the static charge on the glass.
2. Use a blower brush or a water-moistened cotton pad to clean the mirrors
and lenses.
3. Make sure to not bend or crease the exposure lamp’s ribbon cable.
4. Do not disassemble the lens unit. This will cause the lens and copy image
to get out of focus.
5. Do not turn any of the CCD positioning screws. This will put the CCD out
of position. The CCD position cannot be re-adjusted in the field.
80. General Cautions
3.1.4 LASER UNIT
1. Do not loosen or adjust the screws securing the LD drive board on the LD
unit. This will put the LD unit out of adjustment. The LD Unit position
cannot be re-adjusted properly in the field.
2. Do not adjust the variable resistors on the LD unit. These are adjusted at
the factory.
3. The polygonal mirror and F-theta lens are very sensitive to dust.
4. Do not touch the toner shield glass or the surface of the polygonal mirror
with bare hands.
3.1.5 FUSING UNIT
1. After installing the fusing thermistor, make sure that it is in contact with the
hot roller and that the roller can rotate freely.
2. Be careful to avoid damage to the hot roller stripper pawls and their
tension springs.
3. Do not touch the fusing lamp and rollers with bare hands.
4. Make sure that the fusing lamp is positioned correctly and that it does not
touch the inner surface of the hot roller.
3.1.6 PAPER FEED
1. Do not touch the surface of the paper feed rollers.
2. To avoid misfeeds, the side and end fences in each paper tray must be
positioned correctly so as to align with the actual paper size.
ƒ You must run SP 2214 to initialize the TD sensor after you install a new PCU. After
starting initialization, be sure to wait for it to reach completion (wait for the motor to
stop) before you re-open the front cover or turn off the main switch.
ƒ If the optional tray heater or optics anti-condensation heater is installed, keep the
machine's power cord plugged in even while the main switch is off, to keep the
heater(s) energized.
B245/B276/B277 3-2 SM
81. Special Tools and Lubricants
SM 3-3 B245/B276/B277
Replacement
Adjustment
3.2 SPECIAL TOOLS AND LUBRICANTS
Part Number Description Q’ty
A0069104 Scanner Positioning Pins (4 pins/set) 1 set
A2929500 Test Chart S5S (10 pcs/set) 1 set
VSSM9000 FLUKE 87 Digital Multimeter 1
N8036701 4MB Flash Memory Card 1
A2579300 Grease Barrierta S552R 1
52039502 Grease G-501 1
82. Exterior Covers & Operation Panel
3.3 EXTERIOR COVERS & OPERATION PANEL
3.3.1 REAR COVER
1. Unplug the DF cable [A] (if installed).
2. Rear cover [B] ( x 6).
3.3.2 REAR LOWER COVER (TWO-TRAY MODELS ONLY)
1. Rear cover (see above) or tray harness cover [A] (1 rivet).
2. Rear lower cover [B] ( x 2).
B245/B276/B277 3-4 SM
83. Exterior Covers & Operation Panel
SM 3-5 B245/B276/B277
Replacement
Adjustment
3.3.3 COPY TRAY
1. Copy tray [A] ( x 2).
3.3.4 UPPER COVERS
1. Platen Cover, ARDF, or ADF (if installed).
2. Rear cover.
3. Left upper cover [A] ( x 2).
4. Front upper left cover [B] ( x 3).
5. Operation panel [C] ( x 4, x 1).
6. Right upper cover [D] ( x 1, 3 hooks).
7. Push the cover to the rear side to release the hooks.
8. Top rear cover [E] ( x 1).
84. Exterior Covers & Operation Panel
3.3.5 LEFT COVER
1. Left cover [A] ( x 3).
3.3.6 FRONT COVER
1. Pull out the (top) paper tray.
2. Open the front door [A].
3. Front cover [B] ( x 4).
B245/B276/B277 3-6 SM
85. Exterior Covers & Operation Panel
SM 3-7 B245/B276/B277
Replacement
Adjustment
3.3.7 FRONT RIGHT COVER
1. Open the front door [A].
2. Front right cover [B] ( x 1).
3.3.8 RIGHT REAR COVER
1. Right upper cover ( p.3-5).
2. Open the duplex unit (B269/B277 only).
3. Right rear cover [A] ( x 1).
86. Exterior Covers & Operation Panel
3.3.9 RIGHT DOOR (DUPLEX UNIT (B269/B277))
1. Right rear cover (see above).
2. Open the right door [A].
3. Open the clamps [B] and disconnect the two connectors [C] or three connectors
(B269/B277).
4. Right door
3.3.10 BY-PASS TRAY
1. Right rear cover (above).
2. Open the right door.
B245/B276/B277 3-8 SM
87. Exterior Covers & Operation Panel
SM 3-9 B245/B276/B277
Replacement
Adjustment
3. Release the by-pass tray cable from the clamps (see [B] on the preceding
procedure) and disconnect the connector (5-pin connector with colored wires).
4. Cable holder [A] (B269/B277 only).
5. Front-side clip ring [B].
6. Front-side pin [C] (You can push the pin from behind the right door.).
7. Front-side tray holder arm [D].
8. Remove the rear-side clip ring, pin, and tray holder arm in the same manner.
9. By-pass tray [E].
3.3.11 LEFT LOWER COVER (TWO-TRAY MODELS ONLY)
1. Left lower cover [A] ( x 2).
3.3.12 RIGHT LOWER COVER (TWO-TRAY MODELS ONLY)
1. Right lower cover [A] (1 pin).
88. Exterior Covers & Operation Panel
3.3.13 PLATEN COVER SENSOR
1. Top rear cover.
2. Platen cover sensor [A] ( x 1).
B245/B276/B277 3-10 SM
89. Scanner Unit
SM 3-11 B245/B276/B277
Replacement
Adjustment
3.4 SCANNER UNIT
3.4.1 EXPOSURE GLASS/DF EXPOSURE GLASS
- Exposure Glass -
1. Front upper left cover ( Upper Covers).
2. Left scale [A] ( x 2).
3. Rear scale [B] ( x 3.
4. Exposure glass [C]
ƒ Make sure that the mark is at the rear left corner, and that the left edge is
aligned to the support on the frame when you reinstall the exposure glass.
- DF Exposure Glass -
1. Front upper left cover ( Upper Covers).
2. Left scale [A].
3. DF exposure glass [D].
ƒ Make sure that the mark [E] is on the bottom at the front end when reinstall the
exposure glass.
3.4.2 LENS BLOCK
ƒ Do not touch the paint-locked screws on the lens block. The position of the lens
assembly (black part) is adjusted before shipment.
ƒ Do not grasp the PCB or the lens assembly when you handle the lens block. The
90. Scanner Unit
lens assembly may slide out of position.
1. Exposure glass ( Scanner Unit).
2. Lens cover [A] ( x 5).
3. Disconnect the flat cable [B].
4. Lens block [C] ( x 4).
ƒ Adjust the image quality ( Copy Adjustments Printing/Scanning) after
you install a new lens block.
3.4.3 LAMP STABILIZER BOARD AND EXPOSURE LAMP
1. Operation panel ( Upper Covers).
2. Exposure glass ( Exposure Glass/DF Exposure Glass).
3. Slide the first scanner to a position where the front end of the lamp is visible.
4. Place one hand under the lamp stabilizer board [A] and release the hook [B].
B245/B276/B277 3-12 SM
91. Scanner Unit
SM 3-13 B245/B276/B277
Replacement
Adjustment
5. Lamp stabilizer board ( x 2).
6. Press the plastic latch [C] and push the front end of the lamp toward the rear.
7. Lamp [D] (with the cable).
3.4.4 ORIGINAL WIDTH/LENGTH SENSOR
1. Exposure glass ( Scanner Unit).
2. Original width sensor [A] ( x 1, x 1).
3. Lens block ( Scanner Unit).
4. Original length sensor [B] ( x 1, x 1).
92. Scanner Unit
- Sensor Positions -
Sensor positions vary according to regions as shown below.
Asia (including Taiwan; excluding China),
Europe
America
China (Sensor positions for China model (8K/16K)
- Sensor Positions for China Model (8K/16K) -
This procedure is for China models only. You must rearrange the positions of the original
width and length sensors for the copier to detect the following original sizes:
1. 8K SEF (270 x 390 mm)
2. 16K SEF (195 x 270 mm)
3. 16K LEF (270 x 195 mm)
After you have rearranged the positions, the sensors work as listed in the table. Rearrange
the sensor positions as follows:
Original Size Length Sensors Width Sensors
8K-SEF L1 L2 W1 W2
16K-SEF X X X O
16K-LEF X O O O
16K-SEF O O X O
1. Specify SP mode settings:
Select SP 4305 1, and specify 2 (=Yes). The machine will detect 8K/16K rather than
B245/B276/B277 3-14 SM
93. Scanner Unit
SM 3-15 B245/B276/B277
Replacement
Adjustment
A3/A4/B4/B5 (A3-SEF/B4-SEF 8K-SEF; B5-SEF/A4-SEF 16K-SEF;
B5-LEF/A4-LEF 16K-LEF).
2. Turn off the main switch.
3. Exposure glass ( Scanner Unit).
4. Original width/length sensors [A] [B]
5. Rearrange the sensor positions [C] [D].
6. Turn on the main switch and check the operations.
3.4.5 SCANNER MOTOR
1. Left upper cover, front upper left cover, operation panel, top rear cover
( Exposure Glass/DF Exposure Glass).
2. Exposure glass ( Exposure Glass/DF Exposure Glass).
3. Rear exhaust fan [A] (B269/B277 only).
4. Scanner motor [B] ( x 3, x 1, 1 spring, 1 belt).
ƒ Install the belt first, and then set the spring when you reassemble. Fasten the
leftmost screw (viewed from the rear), and fasten the other two screws.
ƒ Adjust the image quality after you install the motor.
94. Scanner Unit
3.4.6 SCANNER HOME POSITION SENSOR
1. Left upper cover, top rear cover ( Original Width/Length Sensor).
2. Exposure glass, DF exposure glass (if installed) ( Exposure Glass/DF
Exposure Glass).
3. Disconnect the connector [A].
4. Scanner left lid [B] ( x 7).
5. Sensor tape [C].
6. Scanner home position sensor [D].
B245/B276/B277 3-16 SM
95. Scanner Unit
SM 3-17 B245/B276/B277
Replacement
Adjustment
3.4.7 ADJUSTING SCANNER POSITIONS
ƒ Grasp the front and rear ends (not the middle) of the first scanner when you
manually move it. The first scanner may be damaged if you press, push, or
pull its middle part.
- Overview -
Adjust the scanner positions when the first scanner [C] and second scanner [B] are not
parallel with the side frames [A], or, when you have replaced one or more of the scanner
belts.
To adjust the scanner positions, do either of the following:
1. Adjust the belt contact points on the first scanner. (See " Adjusting the First
Scanner Contact Points" below.).
2. Adjust the belt contact points on the scanner bracket. (See ”Adjusting the Second
Scanner Contact Points" below.).
The two actions above have the same objectives--to align the following holes and marks:
1. The adjustment holes [H] [J] in the first scanner
2. The adjustment holes [H] [J] in the second scanner
96. Scanner Unit
3. The alignment marks [G] [I] on the frames
The scanner positions are correct when these holes and marks are aligned.
- Adjusting the First Scanner Contact Points -
1. A(R)DF or platen cover.
2. Operation panel, top rear cover ( Upper Covers).
3. Exposure glass ( Exposure Glass/DF Exposure Glass).
4. Loosen the 2 screws [A] [F].
5. Slide the 1st and 2nd scanners, or one of them, to align the following holes and
marks.
6. The adjustment holes in the first scanner.
7. The adjustment holes in the second scanner.
8. The alignment marks on the frames.
9. Insert the positioning tools [D] [E] through the holes and marks.
10. Check that the scanner belts [B] [C] [G] [H] are properly set between the bracket
and the 1st scanner.
11. Tighten the screws [A] [F].
12. Remove the positioning tools.
13. Reassemble the machine and check the operation.
B245/B276/B277 3-18 SM
97. Scanner Unit
SM 3-19 B245/B276/B277
Replacement
Adjustment
- Adjusting the Second Scanner Contact Points -
1. A(R)DF or platen cover.
2. Operation panel, top rear cover ( Upper Cover).
3. Exposure glass ( Exposure Glass/DF Exposure Glass).
4. Rear exhaust fan [A] ( x 2).
5. Controller bracket [B] ( x 3).
6. Disconnect the platen-cover-sensor connector [C].
7. Rear frame [D] ( x 7).
8. Scale bracket [E] ( x 2).
9. Loosen the 2 screws [F].
10. Slide the 2nd scanner to align the following holes and marks.
98. Scanner Unit
11. The adjustment holes in the first scanner.
12. The adjustment holes in the second scanner.
13. The alignment marks on the frames.
14. Insert the positioning tools [G] [H] through the holes and marks.
15. Check that the scanner belts are properly set in the brackets.
16. Remove the positioning tools.
17. Reassemble the machine and check the operation.
B245/B276/B277 3-20 SM
99. Laser Unit
SM 3-21 B245/B276/B277
Replacement
Adjustment
3.5 LASER UNIT
ƒ The laser beam can seriously damage your eyes. Be absolutely sure that the
main power switch is off and that the machine is unplugged before you
access the laser unit.
3.5.1 LOCATION OF CAUTION DECAL
3.5.2 TONER SHIELD GLASS
1. Open the front door.
2. Lift the toner cartridge latch [A].
3. Press the toner shield glass cover [B] to the left and pull it out.
100. Laser Unit
4. Pull out the toner shield glass [C].
3.5.3 LASER UNIT
1. Toner shield glass.
2. Copy tray.
3. Pull out the (upper) paper tray.
4. Front cover .
5. Laser unit [A] ( x 2, x 4).
ƒ The screw at the left front position [B] is longer than the other three.
B245/B276/B277 3-22 SM
101. Laser Unit
SM 3-23 B245/B276/B277
Replacement
Adjustment
3.5.4 LD UNIT
ƒ Do not touch the paint-locked screw [A]. The LD position is adjusted before
shipment.
1. Laser unit.
2. LD unit [B] ( x 1).
ƒ Do not screw the LD unit in too tightly when you install it.
3.5.5 POLYGONAL MIRROR MOTOR
102. Laser Unit
1. Laser unit.
2. Two rubber bushings [A].
3. Laser unit cover [B] ( x 1).
4. Polygonal mirror motor [C] ( x 4).
5. After reassembling, adjust the image quality. ( Copy Adjustments
Printing/Scanning).
3.5.6 LASER UNIT ALIGNMENT ADJUSTMENT.
ƒ Reinstall the copy exit tray before you turn the main switch on. The laser
beam may go out of the copier when the copy exit tray is not installed. The
laser beam can seriously damage your eyes.
1. Start the SP mode.
2. Select SP 5902-1 and output the ‘Trimming Area’ pattern (pattern 10).
3. Make sure that the four corners of the pattern make right angles:
ƒ If they make right angles, you do not need to adjust the laser unit alignment.
ƒ If they do not make right angles, go on to the next step.
4. Check the screw position on the lever [B].
ƒ If the screw is in the hole [C], go on to the next step.
ƒ If the screw is in the slot [D], loosen the screw on the lever, loosen the four
screws on the laser unit, and go on to step 9.
ƒ The initial position of the screw is in hole [C].
B245/B276/B277 3-24 SM
103. Laser Unit
SM 3-25 B245/B276/B277
Replacement
Adjustment
5. Four screws in the laser unit ( Laser Unit).
6. Remove the lever ( x 1), confirm the position of the hole beneath the slot [D],
and reinstall the lever.
7. Install the screw (through the slot [D]) loosely into the hole beneath the slot (do
not tighten the screw).
8. Install the four screws for the laser unit loosely (do not tighten the screws).
9. When you rotate the lever clockwise or counterclockwise by one notch of the
lever, the corners of the pattern shift by 0.4 mm (from the leading and trailing
edges). See the trim pattern made in step 2, and find how much the corners
should be shifted.
10. Tighten the screw [A].
11. Tighten the screws on the laser unit.
12. Reinstall the copy tray.
13. Print the trim pattern and check the result. Do the procedure again if further
adjustment is required.
104. PCU Section
3.6 PCU SECTION
3.6.1 PCU
1. Toner bottle with the holder [A].
2. Open the right door.
3. Press the latch [B] and pull out the PCU [C].
ƒ Do not touch the OPC drum surface with bare hands.
4. Load new developer ( p.3-30).
5. Do SP 2214 to reinitialize the TD sensor when you reassemble.
B245/B276/B277 3-26 SM
105. PCU Section
SM 3-27 B245/B276/B277
Replacement
Adjustment
3.6.2 PICK-OFF PAWLS AND TONER DENSITY SENSOR
ƒ Do not turn the PCU upside down. This causes toner and developer to spill out.
1. PCU ( Previous procedure).
2. Pawl [A].
ƒ Pull down the pawl and release the bottom end.
3. Toner density sensor [B] ( x 1).
ƒ The toner density sensor is taped to the bottom of the PCU. Pry it off with a
regular screwdriver
4. After reinstalling the pick-off pawls or toner density sensor, adjust the image
quality ( After Replacement and Adjustment).
106. PCU Section
3.6.3 OPC DRUM
1. PCU ( PCU).
2. Front side piece [A] ( x 1).
3. Rear side piece [B] ( x 2, 1 coupling).
4. Separate the drum section [C] from the developer section [D].
ƒ To ensure that the left-side gears line up, keep the drum cover [E] closed
when reinserting the front side piece.
5. Pry out the drum retaining clip [F].
ƒ Install the clip in the same orientation (with the lip facing away from the drum
shaft) when you reassemble.
6. OPC drum [G]
7. When reassembling, adjust the image quality ( After Replacement and
Adjustment).
B245/B276/B277 3-28 SM
107. PCU Section
SM 3-29 B245/B276/B277
Replacement
Adjustment
3.6.4 CHARGE ROLLER AND CLEANING BRUSH
1. OPC Drum ( Previous procedure).
2. Holding pin [A].
3. Stepped screw [B].
4. Charge roller [C] and cleaning brush [D] (with the holders and springs).
ƒ Turn the gear [E] (as necessary) so that the rear holder [F] comes out.
5. When reassembling, adjust the image quality ( After Replacement and
Adjustment).
3.6.5 CLEANING BLADE
1. Drum charge roller ( Previous procedure).
2. Cleaning blade [B] ( x 2).
3. When reassembling, adjust the image quality ( After Replacement and
Adjustment).
108. PCU Section
Reassembling
Apply toner to the edge of the new cleaning blade when you replace the cleaning blade.
This prevents possible damage to the OPC drum and blade.
1. After installing the cleaning blade, remove some of the toner from the old
blade with your finger.
2. Apply the toner to the edge [A] of the new cleaning blade. Make sure to
apply the toner evenly along full length of the new cleaning blade.
3.6.6 DEVELOPER
1. PCU ( PCU).
2. To let the toner fall to the development section, gently tap about eight different
spots on the top of the PCU with a screwdriver. Each spot must be
approximately at an equal distance from the next spot.
3. Reinstall the PCU in the copier.
4. Turn the main switch on.
5. Open and close the front door and wait for the machine to rotate the
development roller for about 10 seconds.
6. Repeat the previous step two more times.
7. PCU ( PCU).
8. Separate the developer section from the OPC drum section ( OPC Drum).
9. Top part [A] of the development unit ( x 5).
B245/B276/B277 3-30 SM
109. PCU Section
SM 3-31 B245/B276/B277
Replacement
Adjustment
ƒ Release the hook [B].
10. Set the coupling [C] back to the shaft.
11. Turn the coupling in the direction of the arrow [D] to remove developer from the
roller.
12. Turn the bottom part [E] over and rotate the gears to remove the developer.
13. Load new developer ( p.1-5).
14. When reassembling, execute SP 2214 to reinitialize the TD sensor.
ƒ Make sure no toner or developer stays on the gear. Clean the gears as
necessary with a blower brush, etc.
ƒ Be sure to replace the Mylar at the rear side in the correct position. (The Mylar
protects the gears at the rear side from falling toner).
3.6.7 AFTER REPLACEMENT OR ADJUSTMENT
ƒ Do the following procedure after replace or adjust any of the PCU components.
This procedure is not necessary when you replaced the whole PCU with a new
one.
1. Take 5 sample copies.
2. If black dots (dropped toner) show on any of the copies, continue as follows. (If
all copies are clean, you don't need to do the following steps.)
3. Remove the PCU from the mainframe.
4. Tap the top of the PCU with a screwdriver at eight evenly spaced locations (two
or three taps at each spot), to knock the recycled toner down into the
development section.
5. Put the PCU back into the mainframe.
6. Turn the main power on. Then open and close the door and wait for the machine
to rotate the development roller for 10 seconds. Then open and close the door
two more times, so that total rotation time is 30 seconds.
7. Make some sky-shot copies (or solid black prints).
ƒ If using A4 or 81/2" x 11" paper, make 4 copies/prints.
ƒ If using A3 or 11" x 17" paper, make 2 copies/prints.
ƒ To make solid black prints, use SP 5902 pattern 8.
ƒ Step 7 is required only after parts replacement or adjustment. You do not need
to make sky-shot (or solid black) copies after you replace the developer.
110. Toner Supply Motor
3.7 TONER SUPPLY MOTOR
1. Copy tray ( Upper Covers).
2. Open the front door.
3. Toner bottle holder ( PCU).
4. Toner supply motor [A] ( x 1).
B245/B276/B277 3-32 SM
111. Paper Feed Section
SM 3-33 B245/B276/B277
Replacement
Adjustment
3.8 PAPER FEED SECTION
3.8.1 PAPER FEED ROLLER
1. Paper cassette.
2. Clip [A].
3. Push the shaft back through the opening, and tilt it up.
ƒ If the black plastic bushing [B] comes off, make sure you remount it when
reinstall the shaft.
4. Paper feed roller [C]
3.8.2 FRICTION PAD
1. Paper cassette.
2. Clip [A].
112. Paper Feed Section
3. Push the shaft back through the opening, so that the roller moves clear of the
friction pad.
4. Friction pad [B]
3.8.3 PAPER END SENSOR
1. Paper cassette.
2. Paper end sensor [A] ( x 1).
3.8.4 EXIT SENSOR
- Non-Duplex Models -
1. Open the right door.
2. Front right cover).
3. Guide [A] ( x 2).
B245/B276/B277 3-34 SM
113. Paper Feed Section
SM 3-35 B245/B276/B277
Replacement
Adjustment
4. Exit sensor bracket [B] ( x 1).
5. Exit sensor [C] ( x 1).
- Duplex Models -
1. Open the right door.
2. Front right cover.
3. Upper guide [D] ( x 2).
4. Exit sensor bracket [E] ( x 1).
5. Exit sensor [F] ( x 1).
3.8.5 BY-PASS FEED ROLLER AND PAPER END SENSOR
114. Paper Feed Section
1. By-pass tray.
ƒ If you have a support to keep the by-pass tray within the reach of the
connector cable, you do not need to disconnect the connector. When you do
so, use caution not to place too much load on the cable.
2. Sensor holder [A].
3. By-pass paper end sensor [B] ( x 1).
4. By-pass feed roller [C].
3.8.6 REGISTRATION ROLLER
1. PCU.
2. Front cover.
3. Right door .)
4. Rear cover.
5. High-voltage power supply .
B245/B276/B277 3-36 SM
115. Paper Feed Section
SM 3-37 B245/B276/B277
Replacement
Adjustment
6. Registration clutch.
7. Unhook the springs [A] and [B] at the rear and front sides.
8. Guide support [C] and guide [D] ( x 1, x 1).
9. Bushing [E] ( x 1).
10. Gear [F] and bushing [G] ( x 1).
11. Registration roller [H] with the image transfer unit [I].
3.8.7 BY-PASS PAPER SIZE SWITCH
1. By-pass tray.
2. Tray lever [A] ( x 1, 1 pin).
3. Lift the upper tray [B].
4. By-pass paper size switch [C] ( x 1).
ƒ When reinstalling the switch: Move the paper guides to their middle position
(about halfway between fully open and fully closed), and install the round gear
so that the hole in the gear [D] aligns with the peg [E] on the sliding gear.
116. Paper Feed Section
3.8.8 REGISTRATION CLUTCH
1. Rear cover.
2. High-voltage power supply board (with the bracket) [A] ( x 4, all connectors).
3. Registration clutch [B] ( x 1, x 1).
3.8.9 REGISTRATION SENSOR
1. Open the right door.
2. Registration sensor [A] ( x 1).
B245/B276/B277 3-38 SM
117. Paper Feed Section
SM 3-39 B245/B276/B277
Replacement
Adjustment
3.8.10 UPPER PAPER FEED CLUTCH AND BY-PASS FEED
CLUTCH
1. Rear cover.
2. High-voltage power supply board.
3. Clutch cover [A] ( x 2, 2 bushings, x 2 ).
4. Paper feed clutch [B] ( x 1).
5. By-pass feed clutch [C] ( x 1).
ƒ Make sure that the rotation-prevention tabs [D] on the clutches fit correctly into
the corresponding openings on the clutch cover when you reinstall.
3.8.11 RELAY CLUTCH
1. Rear cover.
118. Paper Feed Section
2. Relay clutch [A] ( x 1).
3.8.12 RELAY SENSOR
1. Relay clutch (Previous procedure).
2. Sensor bracket [A] ( x 1).
3. Relay sensor [B] ( x 1).
3.8.13 LOWER PAPER FEED CLUTCH (TWO-TRAY MODELS
ONLY)
1. Rear lower cover ( Rear Lower Cover (Two-tray Models Only).
2. Clutch bracket [A] ( x 2).
3. Lower paper feed clutch [B] ( x 2, 1 bushing, x 1).
B245/B276/B277 3-40 SM
119. Paper Feed Section
SM 3-41 B245/B276/B277
Replacement
Adjustment
3.8.14 VERTICAL TRANSPORT SENSOR (TWO-TRAY MODELS
ONLY)
1. Right lower cover ( Rear Lower Cover (Two –tray Models Only).
2. Metal plate [A] ( x 3).
3. Vertical transport sensor [B] ( x 1).
3.8.15 PAPER SIZE SWITCH
1. Paper cassette.
2. Switch cover [A] ( x 1).
3. Paper size switch [B] ( x 1).
120. Image Transfer
3.9 IMAGE TRANSFER
3.9.1 IMAGE TRANSFER ROLLER
ƒ Do not touch the transfer roller surface with bare hands.
1. Open the right door.
2. Lift the plastic holders [A] with the image transfer roller [B].
ƒ Leave the springs under the holders. Make sure that the pegs [C] on the
holders [D] engage with the springs when you reassemble.
3.9.2 IMAGE DENSITY SENSOR
1. Open the right door.
2. Plastic cover [A].
B245/B276/B277 3-42 SM
121. Image Transfer
SM 3-43 B245/B276/B277
Replacement
Adjustment
3. Image transfer roller (Previous procedure).
4. Push down on the notch [B] to free the sensor.
5. Image density sensor [C] ( x 1).
122. Fusing
3.10 FUSING
3.10.1 FUSING UNIT
ƒ The fusing unit can become very hot. Make sure that it has cooled down
sufficiently before you handle it.
1. Turn off the main switch, and unplug the machine.
2. Front right cover.
3. Open the right door.
4. Fusing unit [A] ( x 2, x 4).
3.10.2 THERMISTOR
1. Fusing unit (see above).
2. Thermistors [A] ( x 1, x 1).
B245/B276/B277 3-44 SM
123. Fusing
SM 3-45 B245/B276/B277
Replacement
Adjustment
3.10.3 FUSING LAMPS
1. Fusing unit.
2. Separate the hot roller section [A] from the pressure roller section [B] ( x 4).
3. Front holding plate [C] ( x 1).
4. Rear holding plate [D] ( x 1).
5. Fusing lamp with the connector (600W) [E] ( x 2).
6. Fusing lamp with the connector (550W) [F] ( x 2).
ƒ Check that the front ends of the two lamps fit in the front holding plate when
you reassemble. If the lamps are seated incorrectly, they do not fit in the
holding plate.
124. Fusing
3.10.4 HOT ROLLER STRIPPER PAWLS
1. Hot roller section (See above).
2. Roller guard [A] ( x 3).
3. Metal holders [B] (1 holder for each).
4. Hot roller stripper pawls [C] (1 spring for each).
3.10.5 HOT ROLLER
1. Hot roller stripper pawls (See above).
2. Hot roller [A] (2 C-rings, 1 gear, 2 bearings).
B245/B276/B277 3-46 SM
125. Fusing
SM 3-47 B245/B276/B277
Replacement
Adjustment
3.10.6 THERMOSTAT
1. Hot roller (See above).
2. Thermostat [A] ( x 2 for each).
3.10.7 PRESSURE ROLLER AND BUSHINGS
1. Separate the hot roller section from the pressure roller section ( Fusing
Lamps).
2. Fusing entrance guide [A] ( x 2).
3. 2 springs [B].
4. 2 pressure arms [C].
5. 2 Bushings [D].
126. Fusing
6. Pressure roller [E]
3.10.8 NIP BAND WIDTH ADJUSTMENT
Do this adjustment when the fusing unit is at its operating temperature. The size of the
OHP sheet must be A4/LT LEF. Any other sizes may cause a paper jam.
A. Pressure roller
B. Hot roller
1. Place an OHP sheet on the by-pass feed table.
2. Enter SP mode, and run SP 1109.
3. Press ‘1’ (Yes).
4. Press twice. The machine feeds the OHP sheet into the fusing section, stops
it there for 20 seconds, then ejects it to the copy tray.
5. Press the key.
6. Quit the SP mode.
7. Check that the nip band (the opaque stripe) across the ejected OHP sheet is
symmetrical, with both ends slightly thicker than the center.
ƒ There is no standard value for the nip band on this machine. Make the
adjustment based on the band's appearance.
8. If the band is not as described above, change the position of the spring hooks
[C] (one on each side), and then check the band again.
ƒ The higher hook position produces greater tension.
B245/B276/B277 3-48 SM
128. Duplex Unit (Duplex Models B269/B277 Only)
3.11 DUPLEX UNIT (DUPLEX MODELS B269/B277
ONLY)
3.11.1 DUPLEX EXIT SENSOR
1. Open the right door.
2. Sensor bracket [A] ( x 1).
ƒ Another bracket [B] comes off with the sensor bracket.
3. Duplex exit sensor [C] ( x 1).
3.11.2 DUPLEX ENTRANCE SENSOR
1. Open the right door.
2. Lift the duplex guide [A].
3. Entrance sensor bracket [B] and bracket cover [C] ( x 2).
4. Duplex entrance sensor [D].
B245/B276/B277 3-50 SM
129. Duplex Unit (Duplex Models B269/B277 Only)
SM 3-51 B245/B276/B277
Replacement
Adjustment
3.11.3 DUPLEX INVERTER SENSOR
1. Copy tray [A] ( x 2).
2. Exit cover [B] ( x 1).
3. Sensor bracket [C] ( x 1, x 1).
4. Duplex inverter sensor [D] ( x 1).
3.11.4 DUPLEX TRANSPORT MOTOR
1. Open the right door.
130. Duplex Unit (Duplex Models B269/B277 Only)
2. Detach the chain and spring from the frame, and lower the right door.
3. Cover [A] ( x 1).
4. Motor bracket [B] ( x 4, x 1).
5. Duplex transport motor [C] ( x 2).
3.11.5 DUPLEX INVERTER MOTOR
1. Rear cover
2. Exhaust fan ( Rear Exhaust Fan {B269/B277 Only}).
3. Duplex inverter motor [A] ( x 2, x 1).
3.11.6 DUPLEX CONTROL BOARD
1. Rear lower cover ( Rear Lower Cover Two-tray Models Only).
2. Duplex control board [A] ( x 4 , all connectors).
B245/B276/B277 3-52 SM
131. Other Replacements
SM 3-53 B245/B276/B277
Replacement
Adjustment
3.12 OTHER REPLACEMENTS
3.12.1 QUENCHING LAMP
1. PCU ( p.3-26).
2. Quenching lamp [A] ( x 1).
3.12.2 HIGH-VOLTAGE POWER SUPPLY BOARD
1. Rear cover .
2. High-voltage power supply board [A] ( x 2, 3 standoffs, all connectors).
132. Other Replacements
3.12.3 BICU (BASE-ENGINE IMAGE CONTROL UNIT)
1. Rear cover.
2. BICU [A] ( x 7, all connectors, 2 flat cables).
ƒ Remove the NVRAM [B] from the old BICU and install it on the new BICU
when you replace the BICU. The NVRAM keeps machine-specific data.
3.12.4 MAIN MOTOR
1. Rear cover.
2. Main motor [A] ( x 4, x 1).
B245/B276/B277 3-54 SM
133. Other Replacements
SM 3-55 B245/B276/B277
Replacement
Adjustment
3.12.5 REAR EXHAUST FAN (B269/B277 ONLY)
1. Rear cover.
2. Rear exhaust fan [A] ( x 2, x 1).
ƒ Reassembling -
ƒ Make sure that the arrow on the fan [B] points the outside of the copier when you
reassemble The arrow indicates the direction of the air current.
3.12.6 LEFT EXHAUST FAN
1. Rear cover.
2. Left cover.
3. Fan cover [A] ( x 3).
4. Fan [B] ( x 3, x 1).
134. Other Replacements
ƒ Reassembling -
ƒ Make sure that the arrow on the fan [C] points the outside of the copier when you
reassemble. (The arrow indicates the direction of the air current).
3.12.7 PSU (POWER SUPPLY UNIT)
1. Left cover.
2. PSU [A] (All connectors, x 6).
B245/B276/B277 3-56 SM
135. Other Replacements
SM 3-57 B245/B276/B277
Replacement
Adjustment
3.12.8 GEARBOX
- Replacement Procedure -
1. Inverter tray [A].
2. Two screws [B] from the middle rear cover.
ƒ This step releases the topmost part of the BICU bracket.
3. High-voltage power supply board (with the bracket) ( Registration
Clutch).
4. BICU (with the bracket) [C] ( x 6).
ƒ If you have difficulty to remove the bracket, remove the screw at the middle of
the crosspiece (see step 6).
5. Main motor ( p.3-54).
6. Crosspiece [D] ( x 3).
7. Registration clutch.
136. Other Replacements
8. PCU.
ƒ This step releases the gear (on the gearbox) that drives the PCU.
9. Ground plate [E] ( x 2).
10. Gearbox [F] ( x 5, 1 belt).
Do not change the position of the spring [G] and make sure that the bushing [H] on
the PCU drive shaft is in the correct position you when you reassemble. You can
adjust its position by rotating the gear [I] seen from the opening of the gearbox.
B245/B276/B277 3-58 SM
137. Other Replacements
SM 3-59 B245/B276/B277
Replacement
Adjustment
- Gear Arrangement in the Gearbox -
The gears are numbered 1 to 12, in the order in which they are to be installed in the
gearbox. These numbers show both on the gearbox and on the front (exposed) surface of
each gear. If the gears fall out, start by finding gear number 1 and installing it onto location
number 1 (setting it into place so that the side with the printed number stays visible). Then
install the remaining gears (2 to 12) in the same way.
138. Copy Adjustments Printing/Scanning
3.13 COPY ADJUSTMENTS PRINTING/SCANNING
ƒ You need to perform the adjustment after you do a Memory All Clear, and after
you replace or adjust any of the following parts.
ƒ First or second scanner
ƒ Lens Block
ƒ Scanner Motor
ƒ Polygonal Mirror Motor
ƒ Paper Tray
ƒ Paper Side Fence
ƒ For detailed explanations about how to access and use the SP modes, see
Section 5.
3.13.1 PRINTING
ƒ Make sure the paper is installed correctly in each paper tray before you start
these adjustments.
ƒ Use the Trimming Area Pattern (SP 5902, No.10) to print the test pattern for the
printing adjustments below.
ƒ Set SP 5902 to 0 again after you complete these printing adjustments.
- Registration - Leading Edge/Side-to-Side -
1. Check the leading edge registration for each paper feed
station, and adjust each of these registrations using SP 1001.
2. Check the side-to-side registration for each paper feed station,
and adjust these registrations using SP 1002. (Adjust the trays
in order: the 1st tray first, then the 2nd tray, etc.)
Tray SP mode Specification
Any paper tray SP 1001 1
By-pass feed SP 1001 2
Duplex SP 1001 3
1st tray SP 1002 1
2nd tray SP 1002 2
3rd tray
SP 1002 3
(Optional PFU tray 1)
2 1.5 mm
B245/B276/B277 3-60 SM
139. Copy Adjustments Printing/Scanning
SM 3-61 B245/B276/B277
Replacement
Adjustment
Tray SP mode Specification
By-pass feed SP 1002 4
Duplex SP 1002 5
A: Leading Edge Registration
B: Side-to-side Registration
- Blank Margin -
ƒ If the leading edge or side-to-side registration cannot be adjusted to within the
specification, then adjust the leading-edge blank margin or the left-side blank
margin.
1. Check the trailing edge and right side edge blank margins, and adjust
them using the following SP modes.
SP mode Specification
Trailing edge SP 2101 2
Right edge SP 2101 4
2 +2.5/–1.5 mm
Leading edge SP 2101 1
Left edge SP 2101 3
2 1.5 mm
A: Trailing Edge Blank Margin
B: Right Edge Blank Margin
C: Leading Edge Blank Margin
D: Left Edge Blank Margin
- Main Scan Magnification -
1. Print the single-dot grid pattern (SP 5902 1).
2. Check the magnification (the grid size should be 2.7 x 2.7 mm), and if
necessary use SP 2998 to adjust it. The specification is 100 1%.
140. Copy Adjustments Printing/Scanning
3.13.2 SCANNING
ƒ Before doing the following scanner adjustments, check and adjust the printing
leading-edge and side-to-side registrations and the printing blank margins (as
described above).
ƒ Use an A3 test chart to perform the following adjustments.
- Registration: Platen Mode -
1. Place the test chart on the exposure glass and make a copy from one of
the feed stations.
2. Check the leading edge and side-to-side registration, and adjust as
necessary with the following SP modes.
SP mode Specification
Leading edge SP 4010
Side-to-side SP 4011
2 1.5 mm
A: Leading edge registration
B: Side-to-side registration
- Magnification -
A: Main scan magnification
B: Sub-scan magnification
B245/B276/B277 3-62 SM
141. Copy Adjustments Printing/Scanning
SM 3-63 B245/B276/B277
Replacement
Adjustment
- Main Scan Magnification -
1. Place the A3 test chart on the exposure glass and make a copy from one
of the feed stations.
2. Check the magnification ratio. If necessary, adjust the magnification using
the following SP mode.
SP mode Specification
Main Scan Magnification SP 4009 1.0%
- Sub-Scan Magnification -
1. Place the OS-A3 test chart on the exposure glass and make a copy from
one of the feed stations.
2. Check the magnification ratio. If necessary, adjust the magnification with
the following SP mode.
SP mode Specification
Sub-scan magnification SP 4008 1.0%
- Standard White Density Adjustment -
This procedure adjusts the standard white density level. Do this adjustment after you do
any of the following:
1. After you replace the standard white plate.
2. After you replace the NVRAM on the BICU. (But note that you do not need to carry
out this adjustment if you have replaced the BICU itself but retained the previous
NVRAM board [by moving it over onto the new BICU]).
3. After you perform a memory all clear (SP 5801 2).
Procedure:
1. Place 10 sheets of new A4/LTR paper (sideways, LEF) or new A3/DLT paper on
the exposure glass, and close the platen cover or the ADF.
2. Enter SP 4428 1 and select “1: YES”. The machine automatically adjusts the
standard white density.
142. Copy Adjustments Printing/Scanning
3.13.3 ADF IMAGE ADJUSTMENT
A: Leading edge registration
B: Side-to-side registration
ƒ Make a temporary test chart as shown above, using A3/11" x 17" paper.
1. Place the temporary test chart on the ADF and make a copy from one of the feed
stations.
2. Check the registrations, and adjust as necessary with the appropriate SP modes,
as follows.
SP mode
Side-to-side registration SP 6006 1
Leading edge registration SP 6006 2
Blank margin for the trailing edge SP 6006 3
Side-to-side registration (Duplex: back side) SP 6006 4
- Sub-scan Magnification -
A: Sub-scan magnification
ƒ Make a temporary test chart as shown above, with A3/11" x 17" paper.
B245/B276/B277 3-64 SM
143. Copy Adjustments Printing/Scanning
SM 3-65 B245/B276/B277
Replacement
Adjustment
1. Place the temporary test chart on the ADF and make a copy from one of the feed
stations.
2. Check the registration, and if necessary adjust it with SP 6006 5. The
specification is 1.0%.
147. Service Call Conditions
SM 4-1 B245/B276/B277
Trouble-shooting
4. TROUBLESHOOTING
4.1 SERVICE CALL CONDITIONS
4.1.1 SUMMARY
There are four levels of service call conditions.
Level Definition Reset Procedure
A
To prevent damage to the machine, the main
machine cannot be operated until the SC has
been reset by a service representative (see the
note below).
Enter SP mode, and then turn
the main power switch off and
on.
B
If the SC was caused by incorrect sensor
detection, the SC can be reset by turning the
main power switch off and on.
Turn the main power switch off
and on.
C
The main machine can be operated as usual,
excluding the unit related to the service call.
Turn the main power switch off
and on.
D
The SC history is updated. The machine can be
operated as usual.
The SC will not be displayed.
Only the SC history is updated.
ƒ If the malfunction is potentially related to electrical circuit boards, first disconnect
then reconnect the connectors before replacing the PCBs.
ƒ If the problem concerns a motor lock, first check the mechanical load before
replacing motors or sensors.
148. Service Call Conditions
4.1.2 SC CODE DESCRIPTIONS
No.
Definition
Symptom Possible Cause
Exposure Lamp Error
101 B
The standard white level
was not detected properly
when scanning the white
plate.
1. Exposure lamp defective
2. Exposure lamp stabilizer
defective
3. Exposure lamp connector
defective
4. Dirty scanner mirror or scanner
mirror out of position
5. SBU board defective
6. SBU connector defective
7. Lens block out of position
8. Incorrect position or width of
white plate scanning (
p.5-12)
Scanner home position error 1
120 B
The scanner home
position sensor does not
detect the off condition
during initialization or
copying.
1. Scanner home position sensor
defective
2. Scanner drive motor defective
3. Scanner home position sensor
connector defective
4. Scanner drive motor connector
defective
5. BICU board defective
Scanner home position error 2
121 B
The scanner home
position sensor does not
detect the on condition
during initialization or
copying.
1. Scanner home position sensor
defective
2. Scanner drive motor defective
3. Scanner home position sensor
connector defective
4. Scanner drive motor connector
defective
5. BICU board defective
B245/B276/B277 4-2 SM
149. Service Call Conditions
SM 4-3 B245/B276/B277
Trouble-shooting
No.
Definition
Symptom Possible Cause
SBU white/black level correction error
143 D
The automatic SBU
adjustment has failed to
correct the black level.
The automatic SBU
adjustment has failed to
correct the white level
twenty times
consecutively.
1. Exposure lamp defective
2. Dirty white plate
3. Incorrect position or width of
white plate scanning (
p.5-12)
4. BICU board defective
5. SBU board defective
Communication Error between BICU and SBU
144 B
The BICU board cannot
detect the SBU connect
signal.
1. The flat cable between the BICU
board and the SBU has a poor
connection
2. The flat cable between the BICU
board and the SBU is damaged
3. BICU board defective
4. SBU defective
Automatic SBU adjustment error
145 D
During the automatic SBU
adjustment, the machine
detects that the white
level read from the white
plate or paper is out of
range. ( p.5-12)
1. Exposure lamp defective
2. Dirty white plate
3. Incorrect position or width of
white plate scanning
( p.5-12)
4. BICU board defective
5. SBU board defective
Image transfer error
193 B
Scanned images are not
transferred to the
controller memory within 1
minute.
1. BICU board defective
2. Controller board defective
Memory address error
198 B The BICU board does not
receive memory
1. The firmware programs of the
engine and the controller do not
150. Service Call Conditions
No.
Definition
Symptom Possible Cause
addresses from the
controller board.
match.
2. BICU board defective
3. Controller board defective
Charge roller current leak
302 B
A current leak signal for
the charge roller is
detected.
1. Charge roller damaged
2. High voltage supply board
defective
3. Poor connection of the PCU
Polygonal mirror motor error
320 B
The polygon mirror motor
does not reach operating
speed within 10 seconds
after the motor ON signal
is sent, or does not turn
on within one of the 200
ms check intervals during
operation.
1. Polygon mirror motor defective
2. Poor connection between the
polygonal mirror motor driver and
the BICU board
3. Damaged cable between BICU
and polygonal mirror motor driver
4. BICU board defective
No laser writing signal (F-GATE) error
321 C
The laser-writing signal
(F-GATE) fails to turn Low
after the laser crosses 5
mm on the drum surface
from the laser writing start
position.
1. BICU board defective
2. The fax controller or printer
controller has a poor connection
3. Fax controller or printer controller
defective
Laser synchronization error
322 B
The main scan
synchronization detector
board cannot detect the
laser synchronization
signal for more than 5
consecutive 100 ms
intervals.
1. Poor connection between the LD
unit and the BICU board
2. Damaged cable between BICU
and LD unit
3. LD unit out of position
4. LD unit defective
5. BICU board defective
390 B TD sensor error
B245/B276/B277 4-4 SM