Xerox 8500DN Service Manual - Page 80
XX.6x Errors - Process Control Software Fault, X-Axis Motor, Tilt Drive, Questions and Actions
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Page 80 highlights
Error Messages and Codes Troubleshooting Procedure for 4,025 Error Code (Continued) Step Questions and Actions Yes No 3 Remove the Waste Tray and Printhead and Clean any ink Go to Step 4. look for ink build-up. or debris Is there ink build-up anywhere in the which may be printer? restricting movement of the drive train or Printhead. 4 1. Check the Process Drive for damage. 2. Ensure the gears are correctly aligned Replace the Go to Step 5. Process Drive. (see "Homing the Process Drive Train" on page 6-8). Is the Process Drive damaged? 5 Check the nose cone alignment on the XAxis Motor. Is the nose cone misaligned with the Printhead shaft? Correct Go to Step 6. alignment of the nose cone. 6 1. Check the X-Axis Motor connector for Replace the X- Go to Step 7. damage. Axis Motor. 2. Run the X-Axis Motor test to check the X- Axis Motor current. Did the test fail? 7 Run the Tilt Drive test. Did the test fail? Replace the Process Drive. 4,0XX.6x Errors - Process Control Software Fault 1. Reset NVRAM and then retest. 2. Ensure ground integrity (see "Ensuring Ground Integrity" on page 4-65). 3. Replace the EEPROM chip. 4. Reboot the printer. 3-12 Phaser 8400/8500/8550/8560 Color Printer Service Manual
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