Xerox Phaser 7100

Error Troubleshooting
Xerox Internal Use Only Phaser 7100 Service Manual 2-397
124-360 CRUM Validation/ 124-390 CRUM OEM Fail All
CRUM error has occurred due to one of the following problems.
• Although the CRUM Enabled/ Disabled that is stored in the 3 locations are matched, their values
are not set (0).
• Although the CRUM OEM Destination that is stored in the 3 locations are matched, their values
are not set (0).
Applicable Fault Codes
• 124-360: All three CRUM Enable/ Disable settings are not set (0 or different values are set).
• 124-390: All three CRUM OEM destinations are not set (0 or different values are set). #Case-(2)
Initial Actions
• Power cycle the printer.
• If the problem persists, perform the following procedure
.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
• MCU PWB, PL 12.1.15
Troubleshooting Procedure
Step Actions and Questions
1. Replace the MCU PWB (REP 12.4 MCU PWB on page 4-206).