Computer Hardware
With a dot matrix printer, light then dark print is most commonly caused by:

Misaligned print head
Erratic ribbon advancement
Erratic paper advancement
Overheating print head
None of these

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Computer Hardware
You're on your PC at midnight and an electric storm pops up. What's the best way to protect your PC.

you don't worry; you've got a surge protector on your PC
you don't worry; you have a lightning rod on your house
unplug the PC and remove phone line from the modem
you don't worry; you've got a surge protector on your PC and phone line to your modem
stop standing on it

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