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Your customer tells you the print quality of their dot matrix printer is light then dark. Which of the following could cause the problem.

  • A.Paper slippage
  • B.Improper ribbon advancement
  • C.Paper thickness
  • D.Head position

Answer: B

Correct answer: Improper ribbon advancement

If the ribbon does not advance evenly, some characters are struck through fresh ink and others through a used part of the ribbon, so the print alternates light and dark. Paper thickness and head position would affect the whole page uniformly.

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