Xerox 7700DX Service Manual - Page 87
ERROR 31, Error, Chain, Front Panel Message, Accumulator Belt HOME POSITION, FAILURE Continued
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Error Code 31 Chain / Link 04-347 ABCD Front Panel Message ERROR 31 Accumulator Belt HOME POSITION FAILURE (Continued) Using a Type II toner vacuum cleaner, vacuum out the Waste Auger Assembly. Replace the Waste Toner Cartridge. Recheck the gear that drives the Accumulator Belt for freedom of rotation. Does it move freely now? Yes No Replace the Waste Auger Assembly (RRP 37, on page 7-199). Reinstall all parts and assemblies and verify printer operation. If problem persists, resume this procedure at next line below. Remove the e-clip and remove any one of the Waste Auger Drive Gears. Again, manually rotate the gear that drives the Accumulator Belt. Does it move freely now? Yes No Replace the Accumulator Belt Drive Assembly (RRP 51, on page 7-217). Replace the Waste Auger Assembly (RRP 37, on page 7-199). Run the "Accumulator Belt Motor" test. Does the Accumulator Belt Motor rotate? Yes No Inspect P530 (see figure page 2-46) on the Engine Control Interface Board for proper seating. If the problem persists, replace the Accumulator Belt Drive Assembly (RRP 51, on page 7-217). If the problem continues to persist, Replace the Engine Control Board (RRP 42, on page 7-206). Replace the Accumulator Belt Assembly (RRP 51, on page 7-217). Replace the Accumulator Belt Assembly (RRP 51, on page 7-217). CautionIf the Accumulator Belt is damaged, determine the cause of the damage before installing a new Accumulator Belt Assembly. Visually inspect the Accumulator Belt area inside the printer and inside the LH door for foreign object or damage parts. It may be necessary to query the user for additional information as to likely causes. If the problem persists, replace the Engine Control Board (RRP 42, on page 7-206). Phaser 7700 Color Laser Printer Service Manual 2-57
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