Xerox Phaser 6125

Phaser 6125/6130 Color Laser Printer Service Manual 3-77
Error Messages and Codes
System Error
MCU Communication Error
The MCU Board detected a communication error.
Applicable Chain Link
■ 024-371: MCU Comm Error
Initial Actions
■ Cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ MCU Board, PL8.2.13
■ Image Processor Board, PL8.1.9
■ “Map 3 - LVPS, Drive Motors, I/P Board,
AC Power” on page 10-10
■ “Map 4 - Toner Dispenser Motors, HVPS,
MCU” on page 10-11
■ “Controller” on page 10-31
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Check connectors P/J10 on the MCU
Board and P/J101 on the Image
Processor Board.
Are the connectors securely
connected?
Go to step 3. Reconnect the
connector(s) P/
J10 and/or P/
J101 correctly,
then go to step
2.
2 Cycle the power.
Does the error still occur?
Go to step 3 Complete.
3 Replace the Image Processor Board
(page 8-60).
Does the error still occur?
Replace the
MCU Board
(page 8-59).
Complete.