Phaser 7500 Printer Service Manual 3-143
Error Messages and Codes
LPH Power On Fail Y
Fuse open circuit detection error during the LPH batch download complete
verification, or power system error.
When the LPH Power On Fail occurs in the LPH of every color (Y, M, C, K), it is a Fuse
open circuit detection error. When the LPH Power On Fail occurs in the LPH of 1
color, it is a power system error because there is a high chance that the error lies
with the power supply connector.
If this error occurs, it is possible that the process have not been performed
correctly because of other LPH Fail. If other LPH Fail had occurred, solving that
other LPH Fail has a higher priority.
Applicable Chain-Link Code
• 061-350: LPH Power On Fail Y
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 (Y), PL2.1.2
■ LPH Cable Assy, PL2.2.1
■ LPH Rear PWB (Y), PL2.2.5
■ MCU PWB, PL18.3.6
■ Motor Drive PWB, PL18.3.7
Troubleshooting Procedure
Step Actions and Questions Yes No
1 Check the Fault History.
Have multiple errors occurred?
Go to step 3. Go to step 2.
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