Xerox WorkCentre 7855
Troubleshooting. Image Quality. IQ39 Missing Colors RAP
One or more of the primary (YMCK) colors is missing from the image.
Initial Actions
Use the LPH Cleaner to clean the LPH.
Procedure
Check wire harness between the LVPS and MD Main PWB for damage. Repair or replace as required:
- LPH Cable Assembly (7830/35) (REP 9.11)
- LPH Cable Assembly (7845/55) (REP 9.12)
Check for damaged wiring from MD Main PWB to the LPH for the affected color YMCK:
- BSD 6.6 LPH Control (Y)
- BSD 6.7 LPH Control (M)
- BSD 6.8 LPH Control (C)
- BSD 6.9 LPH Control (K)
If the wiring is OK, replace the LPH Assembly for the affected color YMCK (REP 9.10).
If the problem still exists, replace the MD Main PWB (REP 1.6).