Xerox Phaser 7100

Error Troubleshooting
Xerox Internal Use Only Phaser 7100 Service Manual 2-289
(K) Imaging Unit CRUM Data Mismatch Fail
A Imaging Unit that's meant for another region is being used (ID number mismatch). Incorrect Data in
the CRUM Authentication Area.
Applicable Fault Code
• 091-916: Imaging Unit (K) CRUM Data Mismatch Fail
Initial Actions
• Power cycle the printer.
• If the problem persists, perform the following procedure.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
• Imaging Unit (K), PL 6.1.4
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check the installation of the Imaging Unit (K)
(REP 6.0 Imaging Unit (Y/ M/ C/ K) on
page 4-121).
Is there an Imaging Unit other than for (K) color
installed?
Or, is there an Imaging Unit for other than this
printer installed?
Replace the Imaging
Unit (K) (REP 6.0
Imaging Unit (Y/ M/ C/
K) on page 4-121).
Reinstall the Imaging
Unit (K).