5

Problem Resolution

Chapter Contents

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Troubleshooting Tools

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5-2

Overall Troubleshooting

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5-3

Solving Power Adapter Problems

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5-4

Troubleshooting the Printer

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5-4

Self-Tests

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5-4

Power On Self-Test

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5-4

Printer Demo Page

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5-5

Printing Problems

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5-5

Printer Light Indications

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5-8

Solving Carriage Stall Conditions

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Troubleshooting Paper Feed Operations

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Clearing Paper Jams

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Avoiding Print Skew

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Printer Skew Specification

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. .5-16

Measuring Paper Squareness

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Measuring Print Skew . . . . . . . . . . . . . . . . . . . . . . .5-17

Troubleshooting Communication Problems

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Troubleshooting Print Cartridges

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Short Print Cartridge Life

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Identifying the Print Cartridge Expiration Date . . . .

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Using the Print Cartridge Cleaning Routine

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Removing Crusted Ink from the Print Cartridge Nozzles .

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Cleaning the Electrical Contacts

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Clearing Clogged Print Cartridge Nozzles

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Troubleshooting Print Quality

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Solving Black Print Quality Problems

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Solving Color Print Quality Problems

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. .5-28

Printouts Missing Rows of Dots

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Inconsistent Color Fill Patterns

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.5-33

Problem Resolution 5-1

Page 64
Image 64
HP 400 manual Problem Resolution