Xerox Phaser 8500 Service Manual

3-12 Phaser 8400/8500/8550/8560 Color Printer Service Manual
Error Messages and Codes
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 Remove the Waste Tray and Printhead and
look for ink build-up.
Is there ink build-up anywhere in the
printer?
Clean any ink
or debris
which may be
restricting
movement of
the drive train
or Printhead.
Go to Step 4.
4 1. Check the Process Drive for damage.
2. Ensure the gears are correctly aligned
(see “Homing the Process Drive Train” on
page 6-8).
Is the Process Drive damaged?
Replace the
Process Drive.
Go to Step 5.
5 Check the nose cone alignment on the X-
Axis Motor.
Is the nose cone misaligned with the
Printhead shaft?
Correct
alignment of
the nose cone.
Go to Step 6.
6 1. Check the X-Axis Motor connector for
damage.
2. Run the X-Axis Motor test to check the X-
Axis Motor current.
Did the test fail?
Replace the X-
Axis Motor.
Go to Step 7.
7 Run the Tilt Drive test.
Did the test fail?
Replace the
Process Drive.
Troubleshooting Procedure for 4,025 Error Code (Continued)
Step Questions and Actions
Yes No

Xerox Phaser 8500 Specifications

General

Brand	Xerox
Model	Phaser 8500
Category	Printer
Language	English