Printers are one of the most used peripherals on computers and are commonly used to print text, images, and photos. Some printers can print documents stored on memory cards or from digital cameras and scanners. A printer is a peripheral device which makes a representation of an electronic document on physical media. It is an external hardware device which is responsible for taking computer data and generating a hard copy of that data. Electrostatic printer - a printer that uses an electric charge to deposit toner on paper Example: (1)ink cartridge - a cartridge that contains ink and can be replaced. (2)Laser printer - electrostatic printer that focuses a laser beam to form images that are transferred to paper electrostatically

1. Electrostatic Printer

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Presentation Outline
Page No Title
1 Cover Pages
2 Presentation Outline
3 Introduction
4 What printers should I look & Four printer qualities
5 Definition of Electrostatic Printer
6 Diagram of Electrostatic Printer
7 Electrostatic Printer Methods
8 Electrostatic Printing Process
9 Electrostatic Printing Process
10 Electrostatic Printing Process
11 Advantages Electrostatic Printer
12 Disadvantages Electrostatic Printer
13 Conclusion
14 Thank you

3. Introduction
Printers are one of the most used peripherals on computers
and are commonly used to print text, images, and photos.
Some printers can print documents stored on memory
cards or from digital cameras and scanners.
A printer is a peripheral device which makes a
representation of an electronic document on physical
media. It is an external hardware device which is
responsible for taking computer data and generating a hard
copy of that data.
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4. What printers should I look at?
1. Home use
2. Professional Use / Small Office
3. Business use
Four printer qualities of most interest:
1. Color
2. Regulation
3. Speed
4. Memory
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5. Definition of Electrostatic Printer
Electrostatic printer - a printer that uses
an electric charge to deposit toner on
paper Example:
(1)ink cartridge - a cartridge that
contains ink and can be replaced.
(2)Laser printer - electrostatic printer
that focuses a laser beam to form images
that are transferred to paper
electrostatically
Figure: Electrostatic printer
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6. Diagram of Electrostatic Printer
Figure: Diagram of Electrostatic printer
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7. Electrostatic Printer Methods
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The electrostatic printing process is one of the most important non impact printing
methods because of its versatility and the possibility of high resolution at high
printing speeds. The dielectric coated paper (DEC-paper) necessary for this process
looks like plain paper and is not expensive. The principle of an electrostatic printer is
shown in the first figure. The DEC-paper has to pass two or three stages, the first
being the charging process by an electrode system, which generates a gas discharge
from selected electrodes. In a second step the latent charge image has to be made
visible by a dry or wet developing process, where fine toner particles are forced to
adhere to the charged areas. The final step serves to fix the toner image, e.g. by
melting of dry toner particles by application of heat.

8. Electrostatic Printing Process
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Electrostatic printing is a printing technique done
without any plate, ink or type form. The paper is
coated with a thin layer of zinc oxide, making it
an insulator in the dark and simultaneously a
conductor of electricity when exposed to light.
These machines are used for printing of
geographic maps. With the advancement in
technology and higher speed, the machines are
also being used to print small books. Electrostatic
printers are used for short run printing as they
are faster and also do not cost much.
Figure: Electrostatic printer

9. Electrostatic Printing Process
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Electrostatic printing use a positively charged toner/inks
that is attracted to paper which in turn is negatively
charged. The paper is moved through a digital ink bath;
positively charged particles in ink stick to the negative
charge on the paper. The printers print in black and white
or color as the case may be, and some handle paper up to
six feet wide.

10. Electrostatic Printing Process
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Application of Electrostatic Printing:
Electrostatic printers are widely used in different industries for
short run printing. They are popular for photocopying jobs
both black & white and colored. These printers are faster than
inkjet printers

11. Advantages Electrostatic Printer
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Reliable
Lowest-cost price per page
Ability to print multi-page documents
Print up to 5000 lines per minute

12. Disadvantages Electrostatic Printer
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Create noise when the pins or typeface strike the ribbon to
the paper.
Doing it manually is time consuming.
Their color performance is low.
Their speeds are limited by waiting for the next input.

13. Conclusion
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Printers are very important hardware devices used to
output information on papers. The study or
knowledge of the various types is very essential so as
to select the best or most suitable one at a particular
point of need or for a particular purpose.

14. Thank you so much for being
with us up to now.
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