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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
■
“Map 4 - LVPS and MCU Boards” on
■
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.
Содержание Phaser 6280
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