Xerox phaser 6200 error message, firmware failure error 72?

Go to the Xerox.com website and follow the troubleshooting aid to these types of faults.
Good luck.

Try this link:

http://www.support.xerox.com/support/phaser-6250/support-options/enus.html

The error message "engine firmware" code 72 is showing up on the display. I've turned the printer off/on and error message still appears.

This is an NVRAM verify error. If the fault is persistent, even after a reboot, the only solution is to replace the engine board.

12 codes on that machine mean a software error.
You can try removing and reseating the RAM chips , most likely its corrupted and will require a software install. The software ( Firmware) would be found at xeox.com, Click on drivers and downloads, then type in 8860 in the search box then click to drivers and downloads again and scroll down to firmware.

please check if the fuser is inserted properly:)

oh i tell you how i fixed it for free, but you i have to pay you to get an answer. okay this is how i fized it............

Hiya,

Can you be more specific regarding the Engine Logic Board Failure as in is it timing, rom/ram, micor pitch or NVRAM as code 80 is a failure code for
Engine Firmware Halt Failure .

Ta

Most likley the problem is a faulty Imaging unit. The chip on the unit has failed. You can try reseating the Imaging Unit and if that doesn't work replace it.

Here are the other listed causes.

Cause:
Corrupted NVRAM Possible Causes are Imaging Unit, Fuser, EEprom Board or PE/MCU Board

POSSIBILITIES

Problem:
1st BTR Contact Failure or 1st BTR Retract Failure Message is displayed after replacing the Accumulator Belt Cause:
A Phaser 7700 Accumulator Belt was installed in a Phaser 7750. The Phaser 7700 Accumulator Belt does not have retractable 1st Bias Transfer Rollers; so these errors will be reported if one is installed in a Phaser 7750 printer. Solution: Fixed! Did not fix. Remove the Phaser 7700 Accumulator Belt and install a Phaser 7750 Accumulator Belt. TRY FIRST (Solutions without parts):
1. Check that all shipping restraits have been removed.



TROUBLESHOOTING TIPS AND HINTS:
1. Test the 1st BTR motor in diagnostics to verify proper operation. 2. Test the 1st BTR sensor in diagnostics, then run the 1st BTR motor test and recheck the 1st BTR sensor. Sensor state should alternate between L and H. The sensor is part of the accumulator belt.

PARTS:Parts are listed in the order of highest probability for repair.
NUMBER QTY DESCRIPTION
116177400 1 *KIT IBT - UNIT



REPAIR/INSPECT/PREVENT PROCEDURE:
1. Clean feed rollers, exit rollers and guides; replace if
necessary.
2. Clean feed rollers and exit rollers only when dust or
debris is visible.
3. Remove and clean all paper trays.
4. Clean the Laser Scanner Unit window.
5. Inspect the image density sensors; clean if necessary.
6. Inspect the accumulator belt home sensor; clean if
necessary.
7. Inspect the fuser assembly; clean if necessary.
8. Print the Error Log, diagnose and repair any problems as
indicated.
9. Print the Usage Profile, diagnose and repair any
problems as indicated.
10. Check version of all installed firmware; as
appropriate, install the latest version of firmware.
11. Check cleanliness of interior and exterior of printer,
including fans; if necessary, clean (dust or vacuum) these
areas.
Problem:
1st BTR Contact Failure or 1st BTR Retract Failure Message is displayed after replacing the Accumulator Belt