Fuser Firmware Failure - Xerox Phaser 6250 Service Manual

Troubleshooting Procedure Table
Steps Actions and Questions
9 Check J71 <=> J140 on the EEPROM
Harness Assembly for continuity.
Use the wiring diagram "Fuser Assembly"
on page 10-21.

Fuser Firmware Failure

Code 76: The CRUM firmware has failed.
Troubleshooting Reference Table
Applicable Parts
EEPROM Board, PL 10.1.14
FSR 4 Harness Assembly, PL 5.1.9
Warning
To avoid the potential of electric shock, ensure the power to the printer is off
and the power cord is disconnected from the wall outlet prior to performing
Step 2 of the following troubleshooting procedure..
Troubleshooting Procedure Table
Step Actions and Questions
1 Check the Fuser Assembly for evidence
of fault or damage.
2 Remove the Fuser Assembly and check
for broken or bent pins.
3
Does the error recur after the Fuser
Assembly has been replaced with a new
one?
4
Are P/J 144 and P/J 145 on the EEPROM
board properly seated and defect free?
5
Check continuity of Harness Assembly
(FSR4) between J145 <=> J232. Refer to
the wiring diagram "Fuser Assembly" on
page 10-21.
3-78
Wiring and Plug/Jack Map References
"Fuser Assembly" on page 10-21
"Laser Unit" on page 10-22
Phaser 6250 Color Laser Printer Service Manual
Yes
Replace the Engine
Control Board,
page 8-107.
Yes
Replace the parts
concerned.
Replace the parts
concerned.
Go to Step 4.
Go to Step 5.
Go to Step 6.
No
Replace the
EEPROM
Harness
Assembly,
PL 13.1.10.
No
Go to Step 2.
Go to Step 3.
Complete
Replace the
EEPROM board
page 8-86.
Replace the
Assembly,
Harness (FSR4)
PL 5.1.9.