ITPEC IP April 2018 Question 13
ITPEC IP April 2018 — Question 13 of 100
An impact printer can produce several copies at once by striking through multipart forms containing carbon or pressure-sensitive layers. Its print head physically hits an inked ribbon and paper, and the force transfers the characters to the sheets underneath.
Answer (b)
Why not others:
- inkjet printers spray droplets without applying the required mechanical pressure
- thermal printers create images using heat
- laser printers use electrostatic imaging and toner
Key rule: Multipart forms require impact force, which is provided by devices such as dot-matrix impact printers.
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