HP LaserJet 1010 Service Manual - Page 104

Image troubleshooting, Print cartridge problems, Solving image-quality problems

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Image troubleshooting Note Print cartridge problems Checking the print cartridge Image formation defects are frequently the result of problems in the print cartridge. If there is any doubt, always replace the print cartridge before troubleshooting image defects. Use the following checklist to make sure that the print cartridge is still operable. □ Make sure that the print cartridge is installed properly and the shipping tape is removed. □ Inspect the print cartridge for toner level. □ Check the expiration date stamped on the print cartridge box. □ Check the print cartridge to see if it has been disassembled or refilled. □ Inspect the print cartridge to see if toner is leaking through worn seals. □ Check the surface of the photosensitive drum in the cartridge to see if it has been damaged or scratched. Touching the drum contaminates the photosensitive surface and can cause spotting and image defects. □ Blurred areas on printed pages indicate that the photosensitive drum in the cartridge has been overexposed to light. Because overexposure to light causes permanent damage to the photosensitive drum, the cartridge should be replaced. A print cartridge weighs approximately 675 gm. (approx. 23.8 oz.) when it is full, approximately 600 gm. (approx. 21.2 oz.) when it first fades, and approximately 585 gm. (approx. 20.6 oz.) when it is empty. To redistribute toner in the print cartridge Before installing a new print cartridge or when toner begins to run low, redistribute the toner by rotating the cartridge back and forth five or six times. Solving image-quality problems Use the following tables to help solve problems with printed pages. If the problem occurs when printing, see Table 6-2. Solving print image-quality problems. Also, see Table 6-3. Solving print paper-feed problems. 92 Chapter 6 Troubleshooting ENWW

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Image troubleshooting
Print cartridge problems
Checking the print cartridge
Image formation defects are frequently the result of problems in the print cartridge. If there is
any doubt, always replace the print cartridge before troubleshooting image defects.
Use the following checklist to make sure that the print cartridge is still operable.
□
Make sure that the print cartridge is installed properly and the shipping tape is removed.
□
Inspect the print cartridge for toner level.
□
Check the expiration date stamped on the print cartridge box.
□
Check the print cartridge to see if it has been disassembled or refilled.
□
Inspect the print cartridge to see if toner is leaking through worn seals.
□
Check the surface of the photosensitive drum in the cartridge to see if it has been
damaged or scratched. Touching the drum contaminates the photosensitive surface and
can cause spotting and image defects.
□
Blurred areas on printed pages indicate that the photosensitive drum in the cartridge has
been overexposed to light. Because overexposure to light causes permanent damage to
the photosensitive drum, the cartridge should be replaced.
Note
A print cartridge weighs approximately 675 gm. (approx. 23.8 oz.) when it is full,
approximately 600 gm. (approx. 21.2 oz.) when it first fades, and approximately 585 gm.
(approx. 20.6 oz.) when it is empty.
To redistribute toner in the print cartridge
Before installing a new print cartridge or when toner begins to run low, redistribute the toner
by rotating the cartridge back and forth five or six times.
Solving image-quality problems
Use the following tables to help solve problems with printed pages.
If the problem occurs when printing, see
Table
6-2.
Solving
print
image-quality
problems
.
Also, see
Table
6-3.
Solving
print
paper-feed
problems
.
92
Chapter 6 Troubleshooting
ENWW