1. 4. Printer Printers Line/Page Impact Drum Chain Non-Impact Laser
Serial/character
Dot matrix
Daisy wheel
Thermal
Inkjet

2. 4.1 Drum Printer Impact printer that prints an entire line at a time.
Can print only predefined style that is embossed on drum.
Can not print images
and different font styles.
Cannot be used for color
printing.
Speed: lines
per minute

3. 4.2 Chain Printer
Impact printer that prints one line printer at a time.
can be used to print different font styles and languages.
Can not print graphics.
Speed: lines per minute

4. 4.3 Laser Printer Non-Impact printer that prints one page at a time.
Produces very high quality output.
Can print graphics such as charts, graphs and any shape that a program can describe.
Can be used for color printing.
Very high speed pages per minute.

5. Working of Laser Printer

6. 4.4 Dot Matrix Printer Serial impact printers
Each character is printed in the form of dots.
Printing quality is not very good.
General graphics like
pie charts can be printed.
Speed: characters
per second.
Not expensive

7. 4.5 Daisy Wheel Printer Serial impact printer Can not print graphics.
Very slow, characters per second.
Used where amount of data to be printed is less.
Text justification, boldface, centering, uppercase and lowercase is possible.

8. 4.6 Thermal Printer Serial non impact printers.
Print head convert electricity into heat.
Special heat sensitive paper is required.

9. 4.7 Inkjet Printer Non-impact character printers.
Print characters by spraying electrically charged small drops of ink on paper.
Color printing is possible.
characters per second.

10. 5. Plotter Used to print images on large piece of paper .
For printing large, complicated drawing that takes several hours to print.
Fast and cheap to use.
Two common types: drum plotter and flat bed plotter.