Examples of poor print quality
Colored spots at 2.95 in. (75 mm)
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
75 mm / 2.95 in.
75 mm / 2.95 in.
Toner scatter or toner stain
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. |
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. |
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Gray or colored background
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Page skewed
ABCDEFGHIJKLMNOPQRSTUVWXYZ. | 0123456789. abcdefghijklmnopqrstuvwxyz. | ||
| abcdefghijklmnopqrstuvwxyz. | ||
ABCDEFG | HIJKLMNOPQRSTUVWXYZ. 0123456789. | opqrstuvwxyz. | |
STUVWXYZ. 0123456789. abcdefghijklmn | |||
ABCDEFGHIJKLMNOPQR | 0123456789. abcdefghijklmnopqrstuvwxyz. | ||
ABCDEFGHIJKLMNOPQRSTUVWXYZ. |
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Troubleshooting and routine maintenance
Recommendation
a Dust, paper powder, glue, and so on may stick to the surface of the photosensitive drum (OPC) and cause black or white spots to appear on printed documents.
b Make a few copies of a blank, white sheet of paper. (See Making multiple copies on page 78.)
c If you still see the spots on printed documents after making multiple copies, clean the drum unit. (See Cleaning the drum
unit on page 161.)
d If the print quality still has not improved you need to install a new drum. (See Replacing the drum unit on page 177.)
Check the machine’s environment. Conditions such as high humidity and high temperatures may cause this print quality problem. (See Choosing a location on page 98.)
Make sure that you use paper that meets our specifications. Rough- surfaced paper may cause the problem. (See Acceptable paper and other media on page 11.)
Install a new toner cartridge for the color causing the problem. (See Replacing a toner cartridge on page 172.)
Clean the corona wires and the drum unit for the color causing the problem. (See Cleaning the corona wires on page 158 and Cleaning the drum unit on page 161.) If the print quality has not improved, put in a new drum unit. (See Replacing the drum unit on page 177.)
Make sure that you use paper that meets our specifications. (See Acceptable paper and other media on page 11.)
Check the machine’s environment. Conditions such as high temperatures and high humidity can increase the amount of background shading. (See Choosing a location on page 98.)
Install a new toner cartridge for the color causing the problem. (See Replacing a toner cartridge on page 172.)
Clean the corona wires of the drum unit for the color causing the problem. (See Cleaning the corona wires on page 158.) If the print quality has not improved, put in a new drum unit. (See Replacing the drum unit on page 177.)
Make sure the paper or other print media is loaded properly in the paper tray and that the guides are not too tight or too loose against the paper stack.
Set the paper guides correctly.
The paper tray may be too full.
Make sure that you use paper that meets our specifications. (See Acceptable paper and other media on page 11.)
C
