Impact printers rely on physically striking an ink ribbon to transfer characters onto paper. The two categories are impact and non-impact printers. Three examples of impact printers are dot matrix printers, which use pins to form characters from dots; daisy wheel printers, which imprint characters molded onto the extensions of a wheel; and both can produce carbon copies but dot matrix printers are inexpensive and energy efficient while daisy wheel printers produce higher quality print but are slower.
In computers, a printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers are sometimes sold with computers, but more frequently are purchased separately. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing. https://isotechline.com/
In this ppt I have covered types of printer and it's description. Broadly Printers are classified by Impact and non-Impact Printers, and then I have explain what are those and their types.
In computers, a printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers are sometimes sold with computers, but more frequently are purchased separately. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing. https://isotechline.com/
In this ppt I have covered types of printer and it's description. Broadly Printers are classified by Impact and non-Impact Printers, and then I have explain what are those and their types.
A printer is an external output device that takes data from a computer and generates output in the form of graphics/text on a paper.
There are two types of printers.
Impact printers
Non-Impact printers
Devices that output hard copy
An external hardware device responsible for taking computer data and generating a hard copy of that data. Printers are one of the most commonly used peripherals and they print text and still images on the paper.
Impact printers use a device to strike an inked ribbon, pressing ink from the ribbon onto the paper.
Non-impact printers use different methods to place ink (or another substance) on the page.
(1) DPI:
It is a measurement of printer’s resolution indicating how many ink dots can be placed by the printer in one square inch. The higher the DPI, the sharper is image. Image quality – Measured in dots per inch (dpi). Most printers produce 300 – 1200 dpi.
(2) Type of printer:
Each type of printer has its own capabilities of printing. Some types of printers produce high quality print while other produce low quality print.
(3) Print Mode:
The printing mode may also affect the quality. For example the draft mode increases the print rate but quality is reduced.
(4) Toner:
The quality and amount of toner also affects print quality.
A printer is an external output device that takes data from a computer and generates output in the form of graphics/text on a paper.
There are two types of printers.
Impact printers
Non-Impact printers
Devices that output hard copy
An external hardware device responsible for taking computer data and generating a hard copy of that data. Printers are one of the most commonly used peripherals and they print text and still images on the paper.
Impact printers use a device to strike an inked ribbon, pressing ink from the ribbon onto the paper.
Non-impact printers use different methods to place ink (or another substance) on the page.
(1) DPI:
It is a measurement of printer’s resolution indicating how many ink dots can be placed by the printer in one square inch. The higher the DPI, the sharper is image. Image quality – Measured in dots per inch (dpi). Most printers produce 300 – 1200 dpi.
(2) Type of printer:
Each type of printer has its own capabilities of printing. Some types of printers produce high quality print while other produce low quality print.
(3) Print Mode:
The printing mode may also affect the quality. For example the draft mode increases the print rate but quality is reduced.
(4) Toner:
The quality and amount of toner also affects print quality.
1st Year chapter 1 Printer.pptx
Topic: Printers and Types.
First Year Computer Science.
Important Long questions related to computer science subject.
Included Types are Impact and Non Impact printers.
Impact printer: Dot Matrix printer, Daisy Wheel printer and Line Printer
Non Impact: Laser printer, Ink Jet printer and Thermal Printer
all the required information is included for the competitive exams and final board examinations.
A basic handout of a computer system provides operating system overview, hardware operations and basic functions of a computer system as a comprehensive entity.
Football footsteps half hour provides basic skills that are necessary to afoot a foundation for competitive soccer and major training operations are highlighted. Basing ball control ,passing and timing skills are highlighted in this handout. Major game skills and physical training is also included. Enjoy your reading and develop your interest in coaching soccer
2. By the end of this lesson you should be
able to:
1. Define a printer
2. Name the two categories of printers
3. Give three examples of impact printers
4. List area of application of each type of printer
5. Outline the advantages and disadvantages of
using impact printers
3. Printer
• a printer is a peripheral which produces a
representation of an electronic document on
physical media such as paper or transparency
film
5. Impact printers
• Impact printers rely on a forcible impact to
transfer ink to the media. The impact printer
uses a print head that either hits the surface
of the ink ribbon, pressing the ink ribbon
against the paper (similar to the action of
a typewriter), or hits the back of the paper,
pressing the paper against the ink ribbon
8. How Dot-Matrix works?
• The dot matrix forms images one character at a time
as the print head moves across the paper.
• Uses tiny pins to hit an ink ribbon and the paper
much as a typewriter does.
• This printer arranges dots to form characters and all
kinds of images.
• 9 to 24 vertical column pins are contained in a
rectangular print head. When print head moves
across the paper, pins are activated to form a dotted
character image. These printers can produce carbon
copies along with the originals.
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11. “Daisy Wheel Printer”
• A daisy wheel printer is
basically an impact printer
consisting of a wheel and
attached extensions on
which molded metal
characters are mounted. A
daisy wheel printer
produces letter quality
print and it can’t produce
graphics output.
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12. How Daisy wheel printer works?
• In a daisy wheel printer, a hammer presses the
wheel against a ribbon which in turn makes an
ink stain on the paper in the form of a
character mounted on the wheel extensions.
• These printers are very noisy as there occur
great movement during the printing. Its
printing speed is also very slow ,i.e. less than
90cps.
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