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3-50 Troubleshooting Analysis Guide (TAGs)
7
Check the toner patch sensor board in the developer unit for loose wiring connectors.
Are all connectors and wiring connected properly?
No: Reconnect the wiring and connectors or replace the developer unit, then turn to TAG 002:
Check & Problem Resolution.
Yes: Go to TAG 808: Prints Overtoned/Dark Vertical Streaks, TAG 811: Background/Resid-
ual Images/Dark Prints, or both, to identify the problem further.
8
Do the prints appear light or blank?
No: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.
Yes: Replace the photoconductor unit, then turn to TAG 002: Check & Problem Resolution.