Table 2-6 Image defect examples (continued)
Problem Image example Solution
Perform the following test
Stop a print job during the print operation before it is complete, 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.
6. The transfer roller shaft might be dirty. Remove the transfer roller and clean the
shaft to ensure good contact.
7. If the transfer roller is deformed or damaged, replace the roller.
8. The high-voltage power supply might be damaged. Replace the high-voltage
power supply.
9. The laser/scanner might be damaged. Replace the laser/scanner.
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.
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.
4. Try using a different type of paper.
5. Check the toner cartridge for leaks. If the toner cartridge is leaking, replace it.
6. The cassette pickup roller might be dirty. Clean the roller. If it cannot be cleaned,
replace the roller.
7. Repetitive dirt marks can be caused by the registration roller, transfer roller, or
pressure roller. Use the repetitive defects ruler to identify the problem, and then
replace the appropriate assembly.
8. The paper-feed guide, or the fuser-inlet guide might be dirty. Clean the guide.
9. The delivery rollers might be dirty. Clean the rollers.
Dropouts
1. Make sure that the environmental specifications for the product are being met.
2. Try using a smoother paper.
3. If the transfer roller is deformed or damaged, replace the roller.
4. The high-voltage contact of the static eliminator with the toner cartridge might be
dirty. Clean the contact.
5. The photosensitive drum, primary charging roller, or developing roller might be
damaged. Replace the toner cartridge.
6. The fuser film might be scratched or dirty. Replace the fuser.
7. The high-voltage power supply might be damaged. Replace the high-voltage
power supply.
80 Chapter 2 Solve problems ENWW
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