HP P3015 Service Manual

Solve image-quality problems
Image defect examples
These examples identify the most common print-quality problems. If you still have problems after trying
the suggested solutions, contact HP Customer Support.
Table 3-9  Image defect examples
ProblemImage exampleSolution
Blank page1.The laser/scanner shutter on the print cartridge might be damaged. Replace
the print cartridge.
2. The laser/scanner shutter on the laser/scanner might be damaged. Replace
the laser/scanner. See 
Laser/scanner on page 107.
3....

ProblemImage exampleSolution
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...

ProblemImage exampleSolution
Dropouts 1.Make sure that the environmental specifications for the product are being met.
See 
Environmental specifications on page 309.
2. If the paper is rough, and the toner easily rubs off, open the  CONFIGURE
DEVICE  menu at the product control panel. Open the  PRINT QUALITY
submenu, select  FUSER MODES, and then select the paper type you are
using. Change the setting to  HIGH1 or HIGH2, which helps the toner fuse more
completely onto the paper. For more information, see...

ProblemImage exampleSolution
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  CONFIGURE DEVICE menu at the product control panel. On the
PRINT QUALITY  submenu, increase the  TONER DENSITY setting. For more
information, see the product user guide.
6. Make sure...

ProblemImage exampleSolution
Repeat defects 1.Print a few more pages to see if the problem corrects itself.
2. Clean the inside of the product and run a cleaning page to clean the fuser. See
Print Quality menu on page 180.
3. Use the repetitive defect ruler to determine if the defect is caused by the fuser
or the print cartridge (see 
Repetitive image-defect ruler on page 173).
◦ If the print cartridge is causing the defect, run the print/stop test at the
500 msec setting. If the test shows a defect,...

ProblemImage exampleSolution
Curl or wave 1.Turn over the paper in the tray. Also, try rotating the paper 180°.
2. Make sure that the type and quality of the paper you are using meet
HP specifications. For more information, see the product user guide.
3. Make sure that the environmental specifications for the product are being met.
See 
Environmental specifications on page 309.
4. Try printing to a different output bin.
5. If paper is lightweight and smooth, open the  CONFIGURE DEVICE menu at
the product...

ProblemImage exampleSolution
Horizontal white lines  1.The photosensitive drum might be scratched, or the developing roller might be
damaged. Replace the print cartridge.
2. The fuser film might be damaged. Replace the fuser. See 
Fuseron page 100.
Black page  1. The print-cartridge ground or bias contacts might be dirty. Clean the contacts.
2. The primary charging roller might be defective. Replace the print cartridge.
3. The high-voltage power supply might be damaged. Replace the high-voltage
power...

ProblemImage exampleSolution
Blurred print 1.Make sure that the type and quality of the paper you are using meet
HP specifications. For more information, see the product user guide.
2. Make sure that the environmental specifications for the product are being met.
See 
Environmental specifications on page 309.
3. Turn over the paper in the tray. Also, try rotating the paper 180°.
4. Do not use paper that already has been run through the product.
5. Decrease the toner density. Open the CONFIGURE DEVICE...

●Registration roller
◦Wipe with a clean lint-free cloth
● Transfer guide
◦Wipe with a soft, dry flannel cloth
● Media-feed guide
◦Wipe with a clean lint-free cloth
● Fuser-inlet guide
◦Wipe with a water dampened flannel cloth
Figure 3-34   Product cleaning diagram
Table 3-10  Product cleaning diagram
ItemDescriptionItemDescription
1Fuser-inlet guide7Tray 1 (multipurpose tray) pickup roller
2Media-feed guide8Tray 1 (multipurpose tray) separation pad
3Photosensitive drum (in the print cartridge)9Cassette...

ItemDescriptionItemDescription
4Transfer roller10Cassette (Tray 2) separation pad
5Transfer guide11Paper feeder pickup roller (Tray 3 or Tray 4)
6Registration roller12Paper feeder separation pad (Tray 3 or Tray 4)
Table 3-10  Product cleaning diagram (continued)
256 Chapter 3   Solve problemsENWW