Xerox 7700DX Service Manual - Page 100
Error 85 Engine Logic Board Micro Pitch Failure, Error 84 Controller To Engine Logic Board Time
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Error Code Chain / Link Front Panel Message 81 04-358 ERROR 81 CONTROLLER TO ENGINE COMMUNICATIONS FAILURE Switch printer power Off. Remove the Image Processor Board, Image Processor Board Cover and the Image Processor Metal Cover and inspect the orange colored ribbon cable between the Relay Board and the Engine Control Board for proper connector seating. If the problem persists, replace the Image Processor Board (RRP 39, on page 7-202). If the problem continues to persist, replace the Electrical Chassis Assembly (RRP 41, on page 7-204). If the problem continues, replace the Engine Control Board (RRP 42, on page 7-206). 82 04-340 ERROR 82 ENGINE LOGIC BOARD RAM/ROM FAILURE 04-342 1. Turn printer power Off, then On. 2. If the problem persists, replace the Engine Controller Board (RRP 42, on page 7-206). 83 04-362 ERROR 83 ENGINE LOGIC BOARD NVRAM FAILURE Replace the Engine Control Board (RRP 42, on page 7-206). If the problem persists, replace the Image Processor Board (RRP 42, on page 7-206). 84 04-371 ERROR 84 CONTROLLER TO ENGINE LOGIC BOARD TIME FAILURE Replace the Engine Control Board (RRP 42, on page 7-206). If the problem persists, replace the Image Processor Board (RRP 42, on page 7-206). 85 04-344 ERROR 85 ENGINE LOGIC BOARD MICRO PITCH FAILURE 1. Turn printer power Off, then On. 2. If the problem persists, replace the Engine Control Board (RRP 42, on page 7-206). 86 04-345 ERROR 86 HIGH-VOLTAGE POWER SUPPLY FAILURE Replace the T3 High-voltage Power Supply (RRP 42, on page 7-206). If problem persists, replace the Engine Control Board (RRP 42, on page 7-206). 87 07-281 TRAY LIFT FAILURE 07-282 07-283 07-284 07-291 07-292 07-397 2-70 Phaser 7700 Color Laser Printer Service Manual
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