Troubleshooting tools – HP 400 User Manual

Page 65

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5-2

Problem Resolution

Troubleshooting Tools

The following tools are recommended for troubleshooting the HP DeskJet 400 printer:

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Dial caliper or accurate linear scale

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Tissue paper

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Cotton swabs

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Rigid card stock

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Clean soft cloth

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Voltmeter (used to check the voltage out of the power adapter)

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