Xerox 7700DX Service Manual - Page 179
Service Diagnostics NVRAM Resets, PostScript NVRAM Reset, Clear Tech Rep Faults
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Service Diagnostics NVRAM Resets PostScript NVRAM Reset Resetting the printer setup values resets the job defaults, front panel language, Intelligent Ready, multi-purpose setup, tray 1 - 4 setup, Startup Page, front panel intensity, front panel contrast, postscript error information and ENERGY STARTM timeout to their default values. 1. Enter Service Diagnostics. 2. Highlight NVRAM Access and press OK. 3. Highlight PostScript NVRAM Reset and press OK. 4. Select the specific entry desired and press OK. The printer now exits Service Diagnostics and reboots. While booting, NVRAM is reset. Clear Tech Rep Faults The following printer faults can occur during normal operation, and the normal procedure is to isolate and repair the problem. However, with these particular faults, an additional step is required. A value has been written in the engine NVRAM that requires clearing before the printer can be used. Some faults require three occurrences before the fault is generated. Note To clear a Tech Rep Fault, you must disconnect the Finisher option. The following functions generate a Tech Rep Fault: ■ Belt Home Too long - Error: 30 ■ ATC-YMCK Sensor Fail - Errors: 12, 13, 14, 15 ■ ADC Sensor Fail Errors - Engineering use only ■ Print Cart. YMCK Type Mismatch - Engineering use only ■ Fuser Main/Sub Lamp Temp Too High - Errors: 40, 44 1. Enter Service Diagnostics. 2. Highlight NVRAM Access and press OK. 3. Highlight Clear Tech Rep Faults and press OK. 4. Highlight the Link Code to be reset and press OK. Reset CRU Life Counters For Engineering use only. Phaser 7700 Color Laser Printer Service Manual 6-149
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