User Guide

Table 2-32 Image defect examples (continued)
Problem Image example Solution
Gray background (image
is obviously dark)
1. Do not use paper that has already been run through the product.
2. Try using a different type of paper.
3. Print a few more pages to see if the problem corrects itself.
4. Turn over the paper in the tray. Also, try rotating the paper 180°.
5. Open the Administration menu at the product control panel. Open the
General Settings menu and then open the Print Quality menu. Increase the
Toner density setting.
6. Make sure that the environmental specifications for the product are being met.
7. The toner cartridge might need to be replaced.
8. The print-cartridge ground or bias contacts might be dirty. Clean the contacts.
9. Stop a print job before it is complete, and then remove the toner cartridge.
Open the photosensitive drum shield, and look at the toner image on the
drum.
◦
If the image is not fully transferring to the page, replace the transfer
roller.
◦
If the toner on the drum is faint, replace the laser/scanner.
10. The high-voltage power supply might be damaged. Replace the high-voltage
power supply.
Toner smear
1. Print a few more pages to see if the problem corrects itself.
2. Try using a different type of paper.
3. Make sure that the environmental specifications for the product are being met.
4. Clean the inside of the product and run a cleaning page to clean the fuser.
5. The toner cartridge might need to be replaced.
Loose toner
Loose toner, in this context, is defined as toner that can be rubbed off the page.
1. If you have observed a rougher texture on one side of your paper, try printing
on the smoother side.
2. Make sure that the environmental specifications for the product are being met.
3. Make sure that the type and quality of the paper you are using meet
HP specifications. For more information, see the product user guide.
4. The pressure roller is dirty, the fuser film is scratched, or a foreign substance is
on the fuser film. Use the Fuser Test Page option in the Troubleshooting menu
to test the fuser. If the error persists, replace the fuser.
310 Chapter 2 Solve problems ENWW