Xerox 8500DN Service Manual - Page 184

General Troubleshooting Mechanical Initialization (8500/8550/8560) MECHANICAL RECOVERY Start Mechanical Recovery Mechanical Recovery POWER ON Start the thermals. 13,xxx Close preheater Unbind Media Path Motor and HOME the MPT 31,001 Wait for head to read OK_TO_WIPE temperatures 13,xxx Home XA and move XA to the HEADTILT position 6000 Set FIRMWARE states: CapState = UNKNOWN HeadTiltState = UNKNOWN DmfixState = UNKNOWN YaState = HOMELESS Home the Y-Axis 5001, 5004 Is the Yes head tilt CAM engaged (head tilted?) No Values in NVRAM are used to determine if printhead and wiper have contact or if the printhead was parked on last power down. If printhead and wiper are in contact, the printhead warms first before moving the wiper. The BLUE line traces what happens if printhead was parked on last power down. NOTE: Headtilt CAM will be engaged when the printhead is in the PARKED (restrained) position. The RED numbers indicate errors that may be displayed at that point in the process. Engage the Headtilt Solenoid Move the wiper and the head to determine if the head is fully restrained or not. This will allow the head to tilt to the standby position so the wiper can be homed. 7007, 7006 Use the Headtilt Solenoid and tilt the head to Standby 7007, 7006, 7008, 8005, 8055, 8007, 8008, 8009 Home the CAP/wiper without disengaging the Head Tilt CAM 8005, 8007, 8008, 8009 s8500-137 Move Cap/Wiper to the PARK ARMS - and restrain head again. 8035, 7009 Yes _headParkedOn LastPowerDown? No homeDmfix 7002 Did the Process Motor Device Fault? Yes RECOVERY ROUTINE Try to recover from Process Motor Stall Yes No Device Fault Codes Move Head to the Standby position, 80xx - Wiper 7007, 7006, 7008, 8005, 8021 - Pump Not Inited 8055, 8007, 8008, 8009 7009 - Wiper Alignment 7002 - PM stalled Move XA to Left Side No 70xx - Headtilt Hard Stop 7006 - Headtilt Solenoid Jog the X 6000 7014 - Head Not Restrained Axis in 31001 - Media Path order to Move XA to Tilt position 5001 - Ya Home Timer release the 6000 5004 YA - General Motion Error HeadTilt 6000 - XA Error Arms. Move Head to the 4025 - PM Init Failed (homeDmfix) Home/Print position 4024 - Wiper Alignment Failed 7006, 7010 Others... - Thermal faults, ECM Faults, HC, PM faults oiling drum Start YA SLEW 5004 Home XA 6000 Move XA to Left Side Hard Stop 6000 Move XA to Tilt Position 6000 homeDmfix again 4025 Jog the X Axis in order to release the HeadTilt Arms. Move Head to the PARK position, 7007, 7008, 8005, 8055, 8007, 8008, 8009, 7014 Rehome XA 6000 Warmup will be responsible for moving the head to the print position after the wipe and purge are performed. After the printer is warm, the head will tilt to the print position and Oil Drum 4 times DONE s8500-138 4-54 Phaser 8400/8500/8550/8560 Color Printer Service Manual