Epson AcuLaser C4000 Service Manual page 252

EPSON AcuLaser C4000/C4100/C3000
FIP-51 ROM Checksum Error (MASK ROM for Font)
Step
Initial setting:
• Remove all the optional units and modules related to the electrical system and bring the
1
printer back to the standard status.
• Check if all connectors are properly connected to the CONTROLLER PWB.
Replace the CODE ROM-DIMM (C309PROG):
2 • Replace the mounted CODE ROM-DIMM.
Does the problem still occur?
Troubleshooting
Check
Level 2 FIP
Treatment
Yes
Replace or reinstall the relevant
Go to step 2.
part.
Replace the CONTROLLER
Problem solved.
PWB.
Revision F
No
3-236