Epson AcuLaser C8500 Service Manual page 391

EPSON AcuLaser C8500
FIP-1.13 NVRAM malfunction FIP-1.13 NVRAM malfunction FIP-1.13 NVRAM malfunction FIP-1.13 NVRAM malfunction
Step
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt,
adherence of foreign matter?
1
*Main parts to check
COMMUNICATION ASSY, MCU PWB
2 Does the error occur when the power is turned ON?
Load the program data to the MCU PWB Flash ROM.
3
Does the problem still occur?
4 Does the error occur when MCU PWB is replaced, and the power is turned ON again?
NOTE: The problem is probably due to outside noise. Proceed to FIP
2.36 "Noise" and check.
NOTE: Replace the MCU PWB with a normal one. If the same error
still occurs after loading the firmware, go to FIP 2.41"Noise"
and check.
Troubleshooting
Check
Level 1 FIP (Fault Isolation Procedure)
Treatment
Yes
Replace and remount
Go to step 2.
the concerned part(s).
Go to the concerned FIP
Go to step 3. when other errors/status
codes occur.
Go to step 4. Problem solved.
Go to FIP-2.36 Problem solved.
Revision C
No
5-39