220-801 · Question #467
A user from the payroll department is printing out paychecks and notices that words are not completely being printed out. The user does state that all of the print on the checks is still dark and…
The correct answer is B. Clean the printer head. Impact printers (dot matrix) form characters using a matrix of tiny pins that strike an ink ribbon against the paper. If some characters are incomplete-missing dots or strokes-but the printed output is still dark and legible where it does print, the most likely cause is that…
Question
Options
- AReinstall the print drivers
- BClean the printer head
- CReplace the printer ribbon
- DReplace the printer cable
How the community answered
(46 responses)- A4% (2)
- B72% (33)
- C15% (7)
- D9% (4)
Explanation
Impact printers (dot matrix) form characters using a matrix of tiny pins that strike an ink ribbon against the paper. If some characters are incomplete-missing dots or strokes-but the printed output is still dark and legible where it does print, the most likely cause is that certain pins in the print head are stuck or clogged with debris, ink residue, or dust. Cleaning the print head clears the obstructions so all pins fire correctly. If the ribbon were worn out (C), the print would be uniformly faint, not selectively incomplete. Reinstalling drivers (A) or replacing the cable (D) would not cause mechanical, pin-level print omissions.
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