Engine Firmware Failure - Xerox Phaser 6250 Service Manual

Engine Firmware Failure

Code 70: Task Table overflow
Code 71: Timer Table overflow
Code 73: Queue Buffer overflow
Code 74: Communications buffer overflow
Code 78: ESS Video data fail
Code 79: This is a generic Engine Firmware Failure code generated when any other
Engine Firmware Failure code fails to report to the controller properly.
Troubleshooting Procedure Table
Steps Actions and Questions
1 Is the problem application related?
2
Turn printer power off and then back on.
Does the error recur?
Code 72: NVRAM verify error
Code 77: NVRAM data error
Troubleshooting Procedure Table
Steps Actions and Questions
1
Remove and reinstall the Fuser and
Imaging unit. Does the error recur?
2 Are P/J 144 and P/J 145 on the EEPROM
Board properly seated and defect free?
3 Turn printer power off and then back on.
Does the error recur?
3-76 Phaser 6250 Color Laser Printer Service Manual
Yes
Forward the
application
information to ESS
for evaluation.
Replace the Engine
Control Board,
page 8-107.
Yes
Go to Step 3.
Go to Step 3.
Replace the
Engine Control
Board,
page 8-107.
No
Go to Step 2.
Complete
No
Complete
Replace the
EEPROM
Board,
page 8-86.
Complete