DIFFICULTY | SUGGESTIONS | ||||
Printed pages have white spots | Make sure that you use paper that meets the specifications. Rough | ||||
in black text and graphic areas. surface or thick media can cause the problem. If you still see white | |||||
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| spots and the display shows CHANGE DRUM SOON, replace the |
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| drum unit with a new one. |
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| White Spots |
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Toner scatters and stains the | Adjust the print conditions by setting the Print Density function. | ||||
printed page. | Clean the machine’s interior. (See Regular Maintenance, page 127 | ||||
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| and Cleaning the Drum Unit, page 128.) Make sure that you use |
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| paper that meets specifications. (See Acceptable Paper, page 65.) If |
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| you still have scattered toner and the display shows CHANGE |
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| DRUM SOON, replace the drum unit with a new one. | ||
Scattering Toner | |||||
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The whole page is printed black. Wipe the electric terminals. (See Regular Maintenance, page 127 | |||||
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| and Cleaning the Drum Unit, page 128.) Also, do not use heat- |
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| sensitive paper as it will cause this problem. After cleaning, if the |
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| printed pages are still black and the display shows CHANGE |
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| DRUM SOON, replace the drum unit with a new one. | |
| Black Page | ||||
Nothing is printed on the page. Make sure that the toner cartridge is not empty. Wipe the electric 
terminals referring to Regular Maintenance, page 127 and Cleaning the Drum Unit, page 128. Make sure that a torn piece of paper does not remain on the scanner window.
White page |
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Printed pages are marked | Markings may disappear by themselves. Try copying at multiple |
regular intervals. | pages to clear this problem. Markings may occur if the machine has |
| not been used for a long time. A possible cause is that the surface of |
| the drum is marked or damaged by excessive exposure to light. In |
| this case, replace the drum unit with a new one. |
Example of Regular Marking |
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Printed pages are blurred at | Certain environmental conditions such as humidity, high temperatures, |
the centre or at either edge. | etc. may cause this condition to occur. Make sure the machine is placed |
| on a flat, horizontal surface. Remove the drum unit with the toner |
| cartridge installed. Try rocking them from side to side. You may clear a |
| blurred page by wiping the scanner windows with a clean soft cloth. |
Blurred Page | (See Regular Maintenance, page 127 and Cleaning the Drum Unit, page |
| 128.) If a blurred page occurs after cleaning and the display shows |
| CHANGE DRUM SOON, replace the drum unit with a new one. |
Ghost images appear on | Adjust the print conditions by changing the Print Density setting, |
printed pages. | page 23. |
| Rough surfaces or thick media can cause a ghost image. Make sure |
| you select the Paper Type that suits the paper in your |
| sheet feeder. (See Paper Type, page 61 and Media Type, page 68.) |
Ghost Images |
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The drum unit is a consumable and it is necessary to replace it periodically.
MAINTENANCE
Troubleshooting and Maintenance 124