Phaser 7500 Printer Service Manual 3-177
Error Messages and Codes
LPH Act Fail C
Communication error between MCU and LPH (error in the communication IC or
cable).
Applicable Chain-Link Code
• 061-372: LPH Act Fail C
Initial Actions
• Power cycle the printer.
• If the problem persists, follow the procedure below.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ LPH Unit (C), PL2.1.2
■ LPH Cable Assy, PL2.2.1
■ LPH Rear PWB (C). PL2.2.5
■ MCU PWB, PL18.3.6
Troubleshooting Procedure
Step Actions and Questions Yes No
1 Check the timing at when this error
occurs.
Does this error occur right after the
power is turned On?
Go to step 2. If the error
occurs when
the Imaging
Unit is
rotating, it is
very likely due
to the noise
caused by high
voltage leak.
Check the
Imaging Unit
(Y, M, C, K) for
improper
installation.
2 Check the Fault History.
Have multiple errors occurred?
Replace the
MCU PWB
(REP 18.12,
page 8-202).
Go to step 3.
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