Question

Which of the following is an impact printer?

• A. Inkjet printer
• B. Thermal printer
• C. Laser printer
• D. Line printer

Hint:

Impact printers like Line and Dot-Matrix printers are noisier and have lower resolution than laser printers, but they remain irreplaceable in logistics and banking because they can print carbon-copy duplicates using carbon paper.

Answer 1

The Correct Option is D

Step 1: Defining Printer Categories:
Printers are broadly classified into two categories based on how they apply ink to paper:

• Non-Impact Printers: Use chemical, thermal, or optical processes without physically striking the paper (e.g., Inkjet, Laser, and Thermal printers).
• Impact Printers: Use mechanical hammers, pins, or print heads to strike an inked ribbon directly against the paper to form characters (e.g., Dot Matrix, Daisy Wheel, and Line printers).

Step 2: Evaluating the Options:

• Inkjet (A), Thermal (B), and Laser (C): These are quiet, high-speed, non-impact printers.
• Line printer (D): A classic high-speed impact printer that prints an entire line of text at once using a rotating drum or chain and a row of mechanical hammers. It is highly durable and commonly used for large-scale bulk printing.

Step 3: Conclusion:
Therefore, the Line printer is an impact printer, matching option (D).