TAG 808: Prints Overtoned/Dark Vertical Streaks
June 1999 Troubleshooting Analysis Guide (TAGs) 3-175
20
Repair or replace the PCL board.
• Run test prints.
Has the problem been resolved?
No: Reinstall the original PCL board. Confirm that the photoconductor, charge corona, devel-
oper unit, and fuser units are new. If these items are new, the toner/carrier mix may be old
or contaminated. Replace the developer and cleaner units with units from the printer’s
manufacturer. If this resolves the problem, turn to TAG 002: Check & Problem Resolu-
tion. Otherwise, turn to TAG 811: Background/Residual Images/Dark Prints.
Yes: Turn to TAG 002: Check & Problem Resolution.
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