Xerox WorkCentre 5775

13. Light Copies or Prints

Description

The image is visible on the print, but with insufficient solid area density, or light grey tones are reproduced too light.

Procedure

Perform the procedures that follow:

• If the IQ defect resembles Figure 8, suspect the developer bias AC supply. Perform the 391A HVPS RAP.
• If the IQ defect resembles Figure 9, suspect the developer bias DC supply. Perform the 391A HVPS RAP.
• IQ11 Print Quality Improvement RAP.

14. Misregistration

Description

The image on the paper is displaced relative to the lead or top edge.

Procedure

Refer to IQS 7 Registration. Perform the procedures that follow:
1. dC604 Registration Setup.
2. ADJ 80.2 Simplex and Duplex Buckle Timing.

15. Mottled Copies or Prints

Description

The image is visible on the print, but with inconsistent solid area density. Black areas are grey and/or spotted.

Procedure

Perform the procedures that follow:

• If the IQ defect resembles Figure 8, suspect the bias transfer roll supply, perform the 391A HVPS RAP.
• IQ11 Print Quality Improvement RAP.

16. Narrow Bands in the Cross Process Direction

Description

Bands across the process direction visible in halftone areas.

Procedure

Perform the procedures that follow:
• IQ6 Narrow Bands RAP.
• Go to the IQ3 Xerographic RAP and perform the LED Print Head Checkout.

17. Print Damage

Description

Creases, curl, cuts, folds, wrinkles, or embossed marks are visible on the print.

Procedure

Perform the IQ5 Print Damage RAP.

18. Repeated Image Defects

Description

Offsetting. A toner image that adheres to the fuser roll or pressure roll and transfers to another area of the print. The repeat interval for a fuser roll defect or a pressure roll defect is 94.3mm (3.71 inches).

Procedure

Check the fuser module. Perform the IQ4 Fuser Module RAP.

Description

Residual Image. A previous image that was not removed from the photoreceptor during the cleaning cycle. The repeat interval for a photoreceptor defect is 125.6mm (5 inches).

Procedure

If the repeated residual image on A3 (11X17 inches) paper is 125.6mm (5 inches), perform the IQ3 Xerographic RAP.

Description

Other. Repeated image defects that are not obviously offsetting or residual.

Procedure

Perform the steps that follow:

• If the distance between repeated defects in the process direction is 125.6mm (5 inches), install a new print cartridge, PL 90.17 Item 9.
• If the distance between repeated defects in the process direction is 94.3mm (3.71 inches), perform the IQ4 Fuser Module RAP.
• If the distance between repeated defects in the cross process direction is 84mm (3.3 inches) and 105mm (4.13 inches) that align with the print cartridge stripper fingers, go to the IQ3 Xerographic RAP. Perform the Print Cartridge Checkout.
• If the distance between repeated defects in the cross process direction is 44mm, 70mm, 60mm and 78mm (1.73, 2.75, 2.36 and 3.07 inches) that align with the fuser module stripper fingers, perform the IQ4 Fuser Module RAP.
• If the distance between repeated defects in the process direction is 56.5mm (2.22 inches), perform the steps that follow: 1. Figure 1, check the bias transfer roll surface for damage or contamination. If necessary install a new bias transfer roll, PL 80.15 Item 3. 2. If the bias transfer roll is good, install a new print cartridge, PL 90.17 Item 9.
• If there are other defects that are repeated in sequential images, install a new print cartridge, PL 90.17 Item 9.