2. Introductions
• Nick Driffill
• Senior Field Service Engineer
• 15 years' experience
• Previously with Reprotec
• ASL took over July 2019
• Ricoh and Kyocera
3. Overview
• ADF
• Toner Supply
• ITB & Cleaning Unit
• Drum, Charge & Cleaning Unit
• Developer
• Fuser & Cleaning Unit (web)
• Registration
• Duplex
• Boards
• Laser
• Filters
• Paper Feed Units
• PTR & Cleaning Unit
• Transport
• Finisher (booklet)
• Main Issues
• PM's & MCP's
4. Best advice is to
download the
Service Manual
Replacement and Adjustmentsection is
invaluable. This shows step-by-stepinstructions
on how to replace individual parts
Ricoh website for possible bulletins
You can contactme 07738635202forany
advice/help whilst on site
5. Special Tools
• For servicing some of the units on this machine,
you will need some special tools
• For transfer belt positioning,you will need the
belt holdingjig
• You may need a mylar for the dev doc blade
• Also an empty dev bottle should be with each
machine, left from the last time it was replaced
9. Belt positioning jigs located either inside the ITB
cover plate, or on the inside of the main doors
10. At this point, for
belt replacement or
removal, go step-
by-step as per the
manual
Note the position of the
transfer belt – writing/numbers
either to the rear/front
11. ITB Cleaning
Unit
• Rotate the purple levers (this moves the apply and cleaning
blades away from the belt surface
• 1 x screw (yellow circle) and pull out the cleaning unit.
12. Pull out the cleaning unit half-way, and on the left, push in
the purple lever (B) to release all the way
13. • 2 x screws for the cleaning blade (lower blade – yellow
circles)
• 2 x screws for the apply blade (upper blade – red circles)
• On the left of the unit, top white clip, pull the gear and
belt off
14. • On the right side of the unit, 1 x screw, 1 x e-clip, 1 x
silver washer and 1 x black bushing.
• This will release the lube apply brush, pull out and to the
right (the lube bar is under this)
• The brush can be replaced at this point
• The apply blade (upper – 2 screws in yellow) can be
removed and replaced
• Vac out and replace items and follow manual for service
settings to complete (drum cleaning & ptr need to be
removed and SP2310 run when fitting ITB cleaning parts
15. • Need to remove the 'sound bar'
which runs along the top (3 screws)
• Then the drum cover, shown by
the red dotted box (3 screws)
Drum, Charge &
Cleaning Unit
16. Remove the
charge unit
The unit strips down to replace the 3 x wires, 3 x
wire cleaners, grid and grid cleaner
Similar to the MP9002 range (Martini)
17. • Unscrew the purple holding screw
• Pull out the drum/dev unit
• Turn the lever for the cleaning unit to unlock
• Lift out the cleaning unit
18. • To remove the drum, unlock the
mechanism as shown in top
picture
• The drum will lift out as shown
in the bottom picture, be careful
not to drop the drum, hold on to
the drum both sides.
19. 2 x screwsto remove the apply blade
2 x screwsto remove the sensorplate
Remove the lube bar and replace
Drum Cleaning Unit
20. Developer
• The empty dev bottle put
in place, and SP3022 run
to exhaust the old dev,
check result with SP3023
• The new dev bottle put in
place and SP3025 run to fill
new developer, tapping
the bottle to help it empty
• Reset the PM counter for
developer SP6722-3
• Close the doors, put sound
bar back on and pro
con/TD initialisation run
automatically
21. Fuser & Web
• The fuser can be unscrewed and removed
• When replacing parts, follow the manual,
also replace the bearings for the heat roller
and hot roller
22. • For the cleaning web, remove screw A, lift web B from
the right, and pull out from the left
• Web replacement is like all other Ricoh's
• There are slight differences between the 8100 and the
8300 in terms of the ease and bushings
• The blue bushings go on the outside as shown in lower
photo (8300)
• Reset SP1902
• Default the used web warning to 95%
23. Registration
• The registrationsensor is located under the
metal plate (2 screws, shown by red circles)
• Vac this regularly
• Varioussensors/rollers are locatedwhere
the red box indicates
• Some motor/sensor connectorsare at the
front (yellow box)
• Some motors/sensors are at the rear
24. Duplex / Exit / Invertor
• Straight out, face up, duplex
• Duplex runs underneath the main drawer
• Motors / transport rollers / sensors all
along the path
• Purge tray located bottom left (under exit)
25. Boards
Item Description
1 IOB (input output board)
2 CGB Power Pack (charge grid bias)
3 EDRB (Exit drive board)
4 AC Drive Board
5 RYB (relay board)
26. Number
1 BCU (Base engine image controlunit)
2 ControllerBoard
3 SDCU (Option) (SD Card Control Unit
4 HDD
5 PSU B
6 PSUA
Number Description
1 PSU C
2 PSU D
27. Laser
• Located under the toner supply, all this will need removing
in order to remove the laser unit
• Laser glass can be cleaned from underneath the laser unit,
remove the drum/dev units and clean with a dry cloth
28. Filters
• These filters need vaccingand
cleaning regularly (diagram6 &
7) located by A in the photo
• The 8300range has a cutout for
these filters so the whole back
panel doesn't need to be
removed
29. Filters at the top
A and B also
need vaccing
and cleaning
30. Paper Feed Units
• Remove the tandem tray RHS by 2 screws, push the
rail back in and lift out the tray
• You can get easy access to all feed rollers to
clean/replace
31. • Remove the waste bottle, pull out the trays and the
vertical transport cover can be unscrewed and removed as
shown
32. • Once the cover is off, you can unscrew the transport unit (2
screws as shown), drop down the gate (yellow arrow) and move to
the right
• There are metal plates/gears/connectorsto come off in yellow
• The feed unitscan be removed from here, sometimes needed if
customer has incorrectly removed jams
35. Finisher (booklet)
• Remove the face plate ( 4 screws, 2 blue
dials)
• Remove the vibrating plate cover (2
screws)
• Newer models may have an additional
screw underneath
36. • Common finisher faults will be caused by the staple railsnot returning to
home positionwithin a certain time.
• These railsneed to be cleaned and dried to allow smooth movement
• 2 screws to the front, 2 screws to the rear, 1 motor connectorto the rear
• Note the positionof the plate/sidesthat go either side of the staple motor
SC720-35
Bulletin
RD734013a
37. Firmware
• Firmware updates in the same
way as all other Ricoh devices
• SD card in service slot, either
individual files such as
system/copy/engineetc (folder
name: romdata)or package (folder
name: package)
• Note some updates to individual
files are not included in the
package firmware but it states this
on the Ricoh page
38. Main Issues
• PM of units – lube bars, webs etc
• Jamming – feeds, incorrect jam
removal (blockages)
• Error codes – worn or broken
parts, paper jams, dirty staple rails
• Copy quality – toner scatteron
units, cleaning units
39. PM's &
MCP's
• General life of most parts is 600k
• Fit lube bars that are required as and
when machine asked for them (it may
state drum cleaningunit replacement,
visuallycheck the other units as well.
• Fit cleaning/applyblades every other time
– they do last and it does reduce costs.
Pushing them too much will cause error
codes, copy qualityissues, and even more
parts needed all at once
40. Unit Part Yield Comments
Developer Developer 860k Store empty bottle
Drum Cleaning Unit Lube bar
Cleaning blade
Apply (lube) blade
Apply (lube) brush
600k
600k
600k
600k
Replace when req'd
Replace every other lube bar
…
...
Charge
Drum
Wires (x3)
Grid
Cleaner (wire & grid)
Drum
600k
600k
600k
2.4M Fit on failure
Transfer Unit Belt
Internal rollers
2.4M
1.2M
Fit on failure
Fit on failure
ITB Cleaning Lube bar
Cleaning blade
Apply (lube) blade
Apply (lube) brush
600k
600k
600k
600k
Replace when req'd
Replace every other lube bar
…
...
PTR Cleaning Lube bar
Cleaning blade
Apply (lube) brush
PTR
600k
600k
600k
800k
Fuser Belt
Hot roller
Pressure roller
Thermistors
Bearings
Web
1.6M
1.6M
1.2M
1.6M
1.6M
800k
Clean / replace on failure
4 x bearings – heat/hot roller
Rest in SP1902
41. Minimum
Call
Procedures
...each call
(there is a section in
the service manual
for routine cleaning
items)
Vac and clean to
• Path
• ITB cleaning unit
• Drum/Dev/Drum cleaning
unit
• Feeds (just remove the
rollers, not the entire unit)
Check and action
• Fuser unit
• Paper transfer
• Filters
• Jams/copyquality
• Current life of units
