Problem Image example Solution
Perform the following test
Stop a print job during the print operation before it is complete, then remove
the print 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.
See
Transfer roller on page 92. Go to step 6.
◦
If the toner on the drum is faint, replace the laser/scanner. See
Laser/
scanner on page 107. Go to step 9.
6. The transfer roller shaft might be dirty. Remove the transfer roller and clean
the shaft to ensure good contact. See
Transfer roller on page 92.
7. If the transfer roller is deformed or damaged, replace the roller. See
Transfer
roller on page 92.
8. The high-voltage power supply might be damaged. Replace the high-voltage
power supply. See
High-voltage power supply (HVPS) on page 121.
9. The laser/scanner might be damaged. Replace the laser/scanner. See
Laser/
scanner on page 107.
If replacing the laser/scanner does not resolve the problem and the high-
voltage power supply was not replaced (step 8), replace the high-voltage
power supply. See
High-voltage power supply (HVPS) on page 121.
Specks (front or back of
the page is dirty)
Specks might appear on a page after a jam has been cleared.
1. The paper might be dirty. Use a new package of paper. make sure that the
paper is stored correctly. See your product user guide.
2. Print a few more pages to see if the problem corrects itself.
3. Clean the inside of the product and run a cleaning page to clean the fuser. See
Print Quality menu on page 180.
4. Try using a different type of paper.
5. Check the print cartridge for leaks. If the print cartridge is leaking, replace it.
6. The cassette pickup roller might be dirty. Clean the roller. If it cannot be
cleaned, replace the roller. See
Tray 2, Tray 3, or Tray 4 pickup roller
on page 88.
7. Repetitive dirt marks can be caused by the registration roller, transfer roller or
pressure roller. Use the
Repetitive image-defect ruler on page 173 to identify
the problem, and then replace the appropriate component.
8. The media-feed guide, or the fuser-inlet guide might be dirty. Clean the guide.
9. The delivery rollers might be dirty. Clean the rollers.
Table 3-9 Image defect examples (continued)
248 Chapter 3 Solve problems ENWW
