Printing quality problems
If the inside of the machine is dirty or paper has been loaded improperly, you may notice a reduction in print quality. See the table below to clear the problem.
| CONDITION | SUGGESTED SOLUTIONS |
|
| |
Light or faded print If a vertical white streak or faded area appears | ||
|
| on the page: |
|
| |
•The toner supply is low. You may be able
to temporarily extend the toner cartridge life. If this does not improve the print quality, install a new toner cartridge.
•The paper may not meet paper specifications; for example, the paper may
be too moist or rough. (See "Specification on print media" on page 35.)
•If the entire page is light, the print resolution setting is too low or the toner save mode is on. Adjust the print resolution and turn the toner save mode off. See the help screen of the printer driver and refer to Software section, respectively.
•A combination of faded or smeared defects may indicate that the toner cartridge needs cleaning. Contact a service representative.
•The surface of the LSU part inside the machine may be dirty. Clean the LSU, contact a service representative.
Toner specks | • The paper may not meet specifications; for |
| example, the paper may be too moist or |
| rough. (See "Specification on print |
| media" on page 35.) |
| • The transfer roller may be dirty. Clean the |
| inside of your machine. Contact a service |
| representative. |
| • The paper path may need cleaning. Contact |
| a service representative. |
Dropouts | If faded areas, generally rounded, occur |
| randomly on the page: |
| • A single sheet of paper may be defective. |
| Try reprinting the job. |
| • The moisture content of the paper is |
| uneven or the paper has moist spots on its |
| surface. Try a different brand of paper. |
| (See "Specification on print media" on |
| page 35.) |
| • The paper lot is bad. The manufacturing |
| processes can cause some areas to reject |
| toner. Try a different kind or brand of |
| paper. |
•Change the printer option and try again. Go to printer properties, click Paper tab, and set type to Thick Paper. Refer to the Software section for details.
•If these steps do not correct the problem, contact a service representative.
CONDITION | SUGGESTED SOLUTIONS |
|
|
White Spots | White spots appears on the page: |
•The paper is too rough and a lot of dirt from
a paper falls to the inner devices within the machine, so the transfer roller may be dirty. Clean the inside of your machine. (See "Cleaning the transfer unit" on page 95.) Contact a service representative.
• The paper path may need cleaning. Contact a service representative.
Vertical lines | If black vertical streaks appear on the page: |
•The surface(drum part) of the imaging unit
inside the machine has probably been scratched. Remove the imaging unit and install a new one. (See "Replacing the imaging unit" on page 97.)
If white vertical streaks appear on the page:
•The surface of the LSU part inside the machine may be dirty. Clean the LSU.
|
|
| Contact a service representative. |
|
|
| |
|
|
|
|
Color or Black | If the amount of background shading becomes | ||
background | unacceptable: | ||
•Change to a lighter weight paper. (See "Specification on print media" on page 35.)
•Check the environmental conditions: very
dry conditions (low humidity) or a high level of humidity (higher than 80% RH) can increase the amount of background shading.
• Remove the old imaging unit and then, install a new one. (See "Replacing the imaging unit" on page 97.)
Toner smear | • Clean the inside of the machine. Contact a |
| service representative. |
| • Check the paper type and quality. (See |
| "Specification on print media" on page 35.) |
| • Remove the imaging unit and then, install a |
| new one. (See "Replacing the imaging |
| unit" on page 97.) |
