Xerox 4400DT Service Manual - Page 38

Error Messages and Codes Section Contents Introduction 2-1 Service Flowchart 2-2 Service Technician Cautionary Statements 2-3 Procedures 2-3 Voltage Measurements 2-4 Using Fault History 2-5 Service Diagnostics 2-7 Entering Service Diagnostics 2-7 Service Diagnostics Menu Map 2-8 Using the Front Panel with Service Diagnostics 2-9 Engine Test Print 2-10 Engine NVRAM Default Settings 2-10 Printer Error Messages 2-11 Index of Errors 2-11 Error Message Summaries 2-12 Image Processor POST Error Codes 2-58 Fault Reporting Devices 2-58 Introduction This section covers troubleshooting procedures for the Phaser 4400 Laser Printer's front panel error messages. Only jams and fatal errors will produce an associated numeric code. Error messages and codes are usually specific, making it important that service personnel and users record errors exactly when reporting problems with the printer. Any error code associated with an error message or jam can be viewed by pressing the INFO key. Jam error are displayed at the beginning of the info menu, while engine errors are display at the end. Some procedures require running Service Diagnostics tests to verify a specific printer assembly is operating correctly. Refer to Service Diagnostics on page 2-7. To troubleshoot problems not associated with a front panel error message or code such as ac power, or problems related to print-quality, refer to the section Troubleshooting on page 3-1. Phaser 4400 Laser Printer Service Manual 2-1