The document provides an overview of printers, describing them as external hardware devices that generate hard copies of computer data. It categorizes printers into two main types: impact printers, which physically strike the paper to produce output, and non-impact printers, which create images without contact. Specific printer types discussed include daisy wheel, dot-matrix, inkjet, laser, and all-in-one printers, each with distinct features and historical significance.

1. 1
Muchhala Polytechnic
GROUP : A

2. What Is a printer?
 It is an external hardware device
responsible for taking computer
data and generating a hard copy of
that data.
 Printers are one of the most used
peripherals on computers and are
commonly used to print text,
images, and photos.
 World's first computer printer was a
19th-century mechanically driven
apparatus invented by Charles
Babbage for his difference engine.

3. What are its major types?
 Major types of printer Printers can
be divided into two main
groups, impact printer and non-
impact printer.
 Impact printer-Impact printer
produces text and images when
tiny wire pins on print head strike
the ink ribbon by physically
contacting the paper.
 Non-Impact printer-Non-impact
printer produces text and graphics
on paper without actually striking
the paper.
IMPACT
PRINTER
NON-IMPACT
PRINTER

4. 4
Printers
Impact Printers
Non-Impact Printers
Daisy
wheel
Dot-
Matrix Inkjet
Laser
All in
ONE

5. “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.
5

6. DOT MATRIX PRINTER:
 It is an impact printer that
produces text and graphics
when tiny wire pins on the print
head strike the ink ribbon.
 They were highly popular
during the 1980s and were the
world’s most common and
relied upon printing instrument
for a long time.
 Now they have become
obsolete.

7. Ink Jet printer:
 They are non-impact
printers which print text
and images by spraying
tiny droplets of liquid ink
onto paper.
 They use CYMK color
combination for
generating all other
colors.
 The ink is stored in
separate, replaceable
cartridges.
 They are the most popular
printers for personal use.

8. Laser Printers:
 Laser Printers are non-impact
printers which can print high
resolution images with high
speed.
 Their printing resolution
varies between 600dpi-
1200dpi.
 They use toners(black or
colored powders), instead of
ink, for printing purposes.
 Can print between 4-20
pages of text per minute.

9. ALL-IN-ONE Printer
 All-in-One multifunction
printer(MFP) is also known
as all-in-one printer or
multifunction device(MFD).
 It includes printer, scanner,
copier and fax.
 It is gaining high-popularity in
small offices and business
store application etc.

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Doubts..!!!