Table 3-9Image defect examples (continued)

Problem

Image example

Solution

 

 

 

 

Horizontal white lines

 

1.

The photosensitive drum might be scratched, or the developing roller might be

 

 

 

 

damaged. Replace the print cartridge.

 

 

2.

The fuser film might be damaged. Replace the fuser. See Fuser

 

 

 

on page 100.

 

 

 

 

 

 

 

 

Black page

 

1.

The print-cartridge ground or bias contacts might be dirty. Clean the contacts.

 

 

2.

The primary charging roller might be defective. Replace the print cartridge.

 

 

3.

The high-voltage power supply might be damaged. Replace the high-voltage

 

 

 

power supply. See High-voltage power supply (HVPS) on page 121.

 

 

 

 

 

 

 

 

Tire tracks

AaBbCc

AaBbCc

AaBbCc

AaBbCc

AaBbCc

This defect typically occurs when the print cartridge has far exceeded its estimated life. For example, if you are printing a very large quantity of pages with very little toner coverage.

1.The print cartridge might need to be replaced.

2.Reduce the number of pages that you print with very low toner coverage.

White spots on black or in

 

 

 

1.

Print a few more pages to see if the problem corrects itself.

 

 

 

the image

 

 

 

2.

Make sure that the type and quality of the paper you are using meet

 

 

 

 

 

 

 

 

 

HP specifications. For more information, see the product user guide.

 

 

 

 

3.

Make sure that the environmental specifications for the product are being met.

 

 

 

 

 

See the product user guide.

 

 

 

 

4.

The print cartridge might need to be replaced.

 

 

5.

If the transfer roller is deformed or damaged, replace the roller. See Transfer

 

 

 

 

 

roller on page 92.

 

 

6.

The transfer roller shaft might be dirty (poor contact). Remove the transfer

 

 

 

 

 

roller and clean the shaft. See Transfer roller on page 92.

 

 

7.

The high-voltage power supply might be damaged. Replace the high-voltage

 

 

 

 

 

power supply. See High-voltage power supply (HVPS) on page 121.

 

 

 

 

 

 

Scattered lines

 

1.

Make sure that the type and quality of the paper you are using meet

 

 

 

 

 

 

 

HP specifications. For more information, see the product user guide.

 

 

 

2.

Make sure that the environmental specifications for the product are being met.

 

 

 

 

 

See Environmental specifications on page 309.

 

 

 

 

 

 

 

 

3.

Turn over the paper in the tray. Also, try rotating the paper 180°.

 

 

 

4.

Open the CONFIGURE DEVICE menu at the product control panel. Open the

 

 

 

 

 

PRINT QUALITY submenu and change the TONER DENSITY setting. For

 

 

 

 

 

more information, see the product user guide.

 

 

5.

Open the CONFIGURE DEVICE menu at the product control panel. On the

 

 

 

 

 

PRINT QUALITY submenu, open OPTIMIZE and set LINE DETAIL=ON. For

 

 

 

 

 

more information, see the product user guide.

 

 

 

 

 

 

ENWW

Solve image-quality problems 253