This defect typically occurs when the print cartridge has far exceeded its rated life. For example,
if you are printing a very large quantity of pages with very little toner coverage, toner might still
remain in the print cartridge even though you have printed more than the rated life of the cartridge,
White spots on black
1. Print a few more pages to see if the problem corrects itself.
2. Make sure that the type and quality of the media you are using meet HP specifications.
3. Make sure that the environmental specifications for the device are being met. See
Operating
environment on page 826.
4. Replace the print cartridge.
Scattered lines
1. Make sure that the type and quality of the media you are using meet HP specifications.
2. Make sure that the environmental specifications for the device are being met. See
Operating
environment on page 826.
3. Turn over the stack in the tray. Also, try rotating the stack 180°.
4. Open the Administration menu at the device control panel. Open the Print Quality submenu and
change the Toner Density setting. See
Print Quality menu on page 64.
5. Open the Administration menu at the device control panel. On the Print Quality submenu, open
Optimize and set Line Detail=On.
6. Open the Administration menu at the device control panel. On the Print Quality submenu, open
Optimize and set High Transfer=Increased.
492 Chapter 6 Troubleshooting ENWW
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