Xerox WorkCentre 5790
Troubleshooting. Image Quality. IQ02.05 IOT IQ Defects RAP
25. Uneven Density or Non Uniform Image
Description
Variation in image density across the print.
Procedure
Perform the steps that follow:
- Figure 1, check that the bias transfer roll, PL 80.15 Item 3, is correctly seated and latched.
- Figure 1, check that the registration transfer housing, PL 80.15 Item 2, is correctly seated and latched.
- Check that the left door assembly, PL 80.10 Item 1, latches correctly to the IOT frame.
- Remove the print cartridge. Check that it seats correctly on the machine frame and that there is no debris that could compromise the correct seating. Re-install the print cartridge.
- ADJ 60.4 LED Print Head Cleaning Procedure.
- If the fault persists, perform the IQ3 Xerographic RAP.
26. Unfused Prints
Description
The toner image on the finished print is not fused to the print medium.
Procedure
Refer to IQS 3 Fusing and IQ4 Fuser Module RAP.
27. White Lines in the Process Direction
Description
White lines in the dark or image areas of the print in the process direction.
Procedure
Perform the steps that follow:
- White lines or deletions that are continuous from edge to edge of the image. Check the items that follow:
– Contamination of, or damage to, the stripper fingers, the bias charge roll or trim bar (parts of the print cartridge). Install a new print cartridge, PL 90.17 Item 9.
– Contamination of the fuser roll. Perform the IQ4 Fuser Module RAP.
– Damage to the fuser roll. Install a new fuser module PL 10.8 Item 1.
– Spots or marks on the LED print head. Go to the IQ3 Xerographic RAP and perform the LED Print Head Checkout. - If the fault persists, perform the IQ3 Xerographic RAP.
28. White Spots
Description
White spots are areas visible on a half tone or solid area where the toner has failed to be deposited.
Procedure
Perform the Deletions procedure.