Xerox 8500DN Service Manual - Page 132
Introduction, Hidden Service Menu, Troubleshooting, Service Tools
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UPC - 095205022063
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Page 132 highlights
General Troubleshooting Introduction This chapter covers the general start-up, Power On Self Test (POST), and power supply operations of the printer to aid in troubleshooting problems not associated with a Control Panel error message or error code. For troubleshooting problems associated with an error code or Control Panel error message, notes on how to use the troubleshooting procedure tables, and how to use service diagnostics, see Chapter 3 "Error Messages and Codes" on page 3-1. The Printer Status page also contains useful troubleshooting information. This page provides general printer information, life information for all consumables, printhead cleaning and power cycles, and jam and error code information. Troubleshooting procedures will isolate a problem to a specific component or subassembly, in some cases including the wiring harness. If you go through the procedures in a troubleshooting table and still are unable to solve the problem, re-read the Theory of Operations for the problem area and ensure that you understand how that section of the printer is supposed to function. Hidden Service Menu The Hidden Service Menu provides access to a large group of information pages and functions usable for diagnosing and correcting printer malfunctions and accessing special features. Display the Hidden Service Menu as follows: 1. On the Control Panel, press the Down Arrow button to select Troubleshooting and then press OK. 2. Press the Down Arrow button to select Service Tools, and then press OK. 3. While pressing and holding down the Up Arrow button, press the Down Arrow button to display the Hidden Service Menu. Menu Item Test Prints Startup Page Eliminate Light Stripes Fault History Jam History Diagnostic History Enter Diagnostic Mode Description See "Analyzing Service Test Prints" on page 5-34 for a complete explanation of each test print available. Prints a page with basic configuration and networking information. Performs a cleaning procedure to remove light stripes in prints; this process will take about 5 minutes. Displays available information regarding the last 15 faults reported by a test and/or the print engine. Displays available information regarding the last 20 Jams reported by a test and/or the print engine. Displays a list of all recent diagnostic tests. See "Service Diagnostics Mode Menu" on page 4-5 for a complete explanation of each function. 4-2 Phaser 8400/8500/8550/8560 Color Printer Service Manual
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