User Guide

7 Troubleshooting
In order to use the information in this chapter, you should have a basic understanding of the
HP LaserJet printing process. Explanations of each mechanical assembly, the MFP systems, and the
basic theory of operation are contained in chapter 5 of this manual. Do not perform any of these
troubleshooting processes unless you understand the function of each MFP component.
This chapter contains information about the following topics:
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Introduction
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Troubleshooting process
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Control panel messages
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Accessory lights for the 3-bin mailbox and stapler/stacker
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Formatter lights
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Replacement parts configuration
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Paper path troubleshooting
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Correcting print quality and copy quality problems
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Media transport problems
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E-mail problems
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Fax problems
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Network connectivity problems
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Functional checks
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MFP resets
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Control panel troubleshooting
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Tools for troubleshooting
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Diagrams for troubleshooting
ENWW 471