Xerox Phaser 6280 - MCU NVRAM Error

Phaser 6280 Color Laser Printer Service Manual 3-109
Error Messages and Codes
MCU NVRAM Error
Engine NVRAM is corrupted, detected by MCU NVRAM check.
Applicable Chain Link
■ Chain Link 041-340: IOT NVRAM 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
■ Print Cartridge (C/M/Y/K),
PL5.1.18-21
■ Transfer Unit, PL4.1.1
■ HVPS, PL5.1.17
■ EEPROM Board, PL9.1.1
■ MCU Board, PL9.1.20
■ Right Side Harness, PL10.1.15
■ “Map 1 - Electrical and Drive” on
page 10-9
■ “Map 4 - LVPS and MCU Boards” on
page 10-12
■ “Xerographic” on page 10-30
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 1.Turn the printer power Off and On.
2.Does the error still occur?
Go to step 2. Complete.
2 1. Check the printer firmware version.
2.Does the printer have the correct
firmware version?
Go to step 3. Upgrade printer
firmware
(
page A-3).
Go to step 3.
3 1. Check the MCU Board for correct
installation. Reseat the MCU Board
(page 8-86).
2.Does the error still occur?
Go to step 4. Complete.
4 1. Check the wiring harness
connectors P/J28 and P/J144
between the EEPROM Board and the
MCU Board.
2.Are the connectors securely
connected?
Go to step 6. Reconnect the
connectors.
Go to step 5.
5 Does the error still occur? Go to step 6. Complete.