Xerox WorkCentre 5955

19. Skew

Description

A difference in angular alignment between the image on the print and the original document.

Procedure

Refer to IQS 5 Skew and the IQ8 IOT Skew RAP.

20. Skips

Description

Loss or stretching of the image, and compression of the image, in bands across the process direction.

Procedure

Skips are associated with a variation in the relative write speed of the LED print head image and the rotation speed of the photoreceptor. Check the components that follow for wear:

• Main drive module, PL 40.15 Item 1.
• Flywheel clamp, PL 40.15 Item 3.
• Photoreceptor dog gear, PL 40.15 Item 10 and spring, PL 40.15 Item 9.

21. Smears

Description

Loss or stretching of the image, and compression of the image, in bands across the process direction.

Procedure

Smears are associated with a variation in the rotation speed of the photoreceptor or speed of the paper. Check the components that follow:

• Main drive module, PL 40.15 Item 1.
• The fuser drive gear on the main drive module, PL 40.15 Item 1.
• Registration drive pulley, PL 80.17 Item 3.

22. Smudges

Description

Dark marks extending from image areas of the page.

Procedure

Smudges are caused by the unfused image being disturbed. Check the items that follow:

• The paper path between the print cartridge and the fuser for any stray pieces of paper.
• The fuser entrance guide for contamination. Refer to Figure 5.
• If the IQ defect resembles Figure 12, install a new print cartridge, PL 90.17 Item 9.

23. Streaks in the Process Direction

Description

Lines on the print, in the process direction of the non-image area.

Procedure

The result of disturbance either before or after image transfer. Perform the steps that follow:
• Check the fuser entry area and remove any debris.
• Install a new print cartridge, PL 90.17 Item 9.

24. Toner Contamination on the Back of Prints

Description

Random black spots or marks on the back of simplex prints, or on both sides of duplex prints.

Procedure

Refer to Figure 1. Perform the steps that follow:

1. Clean the registration nip roll, PL 80.15 Item 4.
2. Clean the registration transfer housing and mylar, PL 80.15 Item 2.
3. Perform dC604 Registration Setup Procedure.
4. If the contamination persists, perform the steps that follow as necessary:
   • Check that the dC131 NVM values that follow are set to their default values:
   – 501-164 BTReverseBiasCycleIn.
   – 501-168 BTReverseBiasRun.
   • Run 50 blank sheets through the machine.
   • Install a new bias transfer roll, PL 80.15 Item 3.
5. If the fault persists, install a new print cartridge, PL 90.17 Item 9, then run 50 blank sheets through the machine.