On a dot matrix printer, you should never lubricate which part?

1.	On a dot matrix printer, you should never lubricate which part?
A.	carriage rails
B.	printhead pins
C.	paper advance bearings
D.	carriage bearings
E.	None of the above
Answer» C. paper advance bearings

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On a dot matrix printer, you should never lubricate which part?

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