Xerox PHASER 7500 - Page 298

3-160 Phaser 7500 Printer Service Manual
Error Messages and Codes
3 Perform the LED EEPROM test in
Diagnostics.
Is it normal, without any corruption?
Replace the
following parts
in sequence:
■ LPH Unit (Y,
M, C, K) (REP
2.1,
page 8-18)
■ MCU PWB
(REP 18.12,
page 8-202)
Initialize the
NVM.
Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No