Root Cause
C-2411, C-2412, C-2413 or C-2414 at power up or intermittently. Codes may be indicated when performing the drum adjustments.

Workaround/Fix
PROBABLE CAUSES:
1. OPEN ICP15, 12V DC fuse (fuse type = ICP-S1.0) on the Printer Control Board (Printer Control Unit).
Check the fuse on the PRCB and replace the board as necessary (p/n A03U R7B5 00).

2. Failed TCR Sensor.
Replace the Toner Density Sensor (p/n A03U M508 01) for the Developing Unit indicated by the failure code.


3. Failed Process unit wiring harness connectors.

Replace the Process Detection Wiring/1 (p/n A03U N110 01) and Process Detection Wiring/2 (p/n A03U N111 02).

Note: Process Detection Wiring/2 is only listed in the bizhub PRO C6500/C5500 Parts Manual.