Service manual

6 Troubleshooting
This chapter describes how to isolate and resolve printer problems, print-quality problems, and media
problems. Troubleshooting details are provided to resolve problems or to isolate replaceable parts.
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Basic troubleshooting
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Control-panel power-on functions (HP LaserJet 1010 series printers)
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Control-panel pages (HP LaserJet 1010 series printers only)
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Control-panel lights (HP LaserJet 1010 series printers)
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Control-panel lights (HP LaserJet 1020 printer)
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Jams
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Print-quality troubleshooting
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Solving paper-feed problems
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Functional checks
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Troubleshooting tools
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Solenoid, sensors, switches, and motor
ENWW 97