Question

Which of the following printer uses a physical impact while printing on paper ?

• A. Inkjet Printer
• B. laser Printer
• C. dot matrix Printer
• D. Thermal Printer

Answer 1

Answer:

C. dot matrix Printer

Dot matrix printers are a type of impact printer. This means they operate by physically striking a print head against an ink-soaked ribbon, which then transfers ink onto the paper to form characters or images using a pattern of dots.

Here's how it works:

• The print head contains a series of small pins (typically 9 or 24).

• These pins are electromagnetically propelled forward.

• When a pin strikes the ink ribbon, it creates a dot on the paper.

• By strategically firing the pins as the print head moves across the page, a matrix of dots forms the desired characters or graphics.

This physical impact is what distinguishes impact printers (like dot matrix) from non-impact printers (like inkjet or laser printers), which use methods such as spraying ink or fusing toner without direct contact with the paper.