Troubleshooting
Examples of poor print quality Recommendation
If the problem is not solved after printing a few pages, the drum unit may have foreign material, such as glue from a label, stuck on the drum. Clean the drum
unit.
uu Cleaning the drum unit uu page 113
The drum unit may be damaged. Put in a new drum unit.
uu Replacing the drum unit uu page 104
White Spots on black text and
graphics at 3.7 in. (94 mm)
intervals
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Black Spots at 3.7 in. (94 mm) |
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| If you use label sheets for laser printers, the glue from the sheets may | |
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| sometimes stick to the OPC drum surface. Clean the drum unit. | |
ABCDEFGH |
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abcdefghijk | ||||||
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A B C D |
| Make sure that you use paper that meets our specifications. | ||||
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a b c d e | ||||||
0 1 2 3 4 |
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| Do not use paper that has clips or staples because they will scratch the | |||
Black toner marks across the | surface of the drum. | |||||
If the unpacked drum unit is in direct sunlight or room light, the unit may be | ||||||
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| damaged. | |
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| The toner cartridge may be damaged. Put in a new toner cartridge. | |
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| The drum unit may be damaged. Put in a new drum unit. | |
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