Xerox WorkCentre 7830

This RAP troubleshoots parts failure or contamination on the LPH surface.

At Cin50% and Cin30%, the lines in the process direction have reversed black and white colors. Width is approximately 1mm.

Initial Actions

1. Check customer print to verify 1mm lines, or print Cin50% and Cin30% halftones using print test pattern -12‘(dC612), and check for a 1mm line as in Figure 1.
2. Check fault history for any LPH (chain 061) fault(s); resolve any faults.
3. Replace the paper in use with fresh, dry paper of the correct specification. 4.Use the LPH Cleaner to clean the LPH surface (PL 2.1).

Procedure

NOTE:
This problem must be distinguished from Developer trimmer jam. Do not replace the LPH without giving this consideration.

Perform IQ35 Process Direction Bands, Streaks, and Smears RAP. If this does not resolve the problem, replace the LPH Assembly for the affected color (REP 9.10).