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Briefly explain various categories of printers

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(a) Impact printers

print using striking mechanisms,they strike the paper inorder to form an imprint on it.examples of Impact printers includes;
i)dot matrix printers;has a set of pins on the printers head which strikes on an ink ribbon placed over the paper.

ii)daisy wheel printers;has a removable flower-like wheel consisting of spokes with embossed characters ,when printing ,the wheel is rotated to align the required character and then the character are hit with a hammer.
They produce low quality printouts.

(b) Non-Impact Printers
Are fastest and more quiet than the impact printers.
They print using ink ,thermal or laser mechanisms.
Types of non-impact printers includes;
a)inkjet printers;print spraying tiny ink droplets onto a paper to create an image .

Characteristics:
inkjet printers are cheaper to purchase and maintain .
they produce better quality printouts.
they are more expensive to run due to high cost of replacing the cartridges.

b)thermal printers ;use thermal technology to heat ink which is normally in wax or resin form to meting point before fusing it onto the paper
thermal printers printers are mostly used in point of sale terminals to print receipts and barcodes.
Characteristics of thermal printers,
Produce high quality printouts.
They are more expensive to purchase and run.
c)Laser pinters;operates by shinning a laser beam to create an image on rotating drum,as the beam hits the drum ,it ionizes some regions which attract ink toner particles.the toner is then fused onto a piece of paper through heating.
Characteristics of laser printers.
Very fast compared to inkjet and thermal printers.
They are cheaper to run.
Produces high quality printouts.

d)Photo printers.
Are special purpose printers designed to print photo

Softwaretech answered the question on April 22, 2019 at 12:42

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Briefly explain various categories of printers

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