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

Paper thickness
Improper ribbon advancement
Head position
None of these
Paper slippage

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Computer Hardware
When connecting a ribbon cable to a connector, how do you know which direction to plug it in?

The blue or red line in the cable goes away from the power connector
The colored line in the cable goes to pin #1
The red line in the cable goes to the highest pin number
It does not matter

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