Xerox 7700DX Service Manual - Page 86
ERROR 31 Accumulator Belt HOME POSITION FAILURE, Error, Chain, Front Panel Message, Note - code look up
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Error Code Chain / Link Front Panel Message 31 04-347 ERROR 31 Accumulator Belt HOME POSITION FAILURE Lower the Main Release Lever and return to the upright position to reestablish electrical connections to the belt. Open the RH Door and defeat the interlock switch. Look for rotation of the Accumulator Belt during the following test. Run the "Belt Edge Learn" test. Did the Accumulator Belt rotate? Yes No Remove the Accumulator Belt Assembly (RRP 35, on page 7-196). CautionRemoving the Accumulator Belt Assembly allows ambient light into the print cartridge area. Avoid exposing the print cartridge drums to light. Manually rotate the gear that drives the Accumulator Belt. Does it move freely? Yes No Inspect the Accumulator Belt Cleaner Waste Auger for packed toner. Is the area inside the auger relatively clear of toner? Yes No Note It is easy to spill toner in the next step. Remove the Waste Toner Cartridge. Run the "Agitator Motor Test." Does the Waste Toner Agitator Motor rotate? Yes No Measure the voltage at the Engine Control Board J404B-3 (see figure page 2-46). Does the voltage measure +24 VDC? Yes No Measure the voltage at the Engine Control Board J408-7 (see figure page 2-46). Does the voltage measure +24 VDC? Yes No Check for +24 VDC at the supply using the "Troubleshooting +24 VDC LVPS" procedure in the Troubleshooting Section, Troubleshooting the +24 VDC LVPS on page 3-90 Replace the Engine Control Board (RRP 42, on page 7-206). Repeat the "Agitator Motor" test while measuring the voltage at the Engine Control Board J404B-4. Does the voltage measure 0 VDC when the test is run and +24 VDC when the test is not run? Yes No Replace the Engine Control Board (RRP 42, on page 7-206). Replace the Waste Toner Agitator Motor (RRP 31, on page 7-190). ABCD 2-56 Phaser 7700 Color Laser Printer Service Manual
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