Xerox 8500DN Service Manual - Page 182

General Troubleshooting Mechanical Initialization 8400 (1/2) Start the Thermals 13,xxx Unbind Media Path Motor and Home the MPT 31,000 Wait for the Head to read OK_TO_WIPE Temperatures 13.xxx Home XA 6000 Move XA to HEAD TILT POSITION 6000 Start Mechanical Recovery Set FIRMWARE states: CapState = UNKNOWN Head Tilt State = UNKNOWN DmfixState = UNKNOWN YaState = HOMELESS Xa State = HOMELESS Home the Y-Axis 5001, 5004 YES Is the head tilt Cam engaged (head tilted?) NO Home the CAP/wiper without disengaging the Head Tilt Cam 8005, 8007, 8008, 8009 Mechanical Recovery POWER ON Values in the NVRAM are used to determine if printhead and wiper have contact or if the head was parked on last power down. If printhead and wiper are in contact, the printhead warms first before moving. If the printhead was parked, the printhead is warm before moving to the print position. The dashed line traces what happens if the printhead was parked on last power down. The RED numbers indicate errors that may be displayed at that point in the mech init process. s8500-029 4-52 Phaser 8400/8500/8550/8560 Color Printer Service Manual