Filter
Top Products
Image Formation Troubleshooting
Check the Toner Cartridge
Image formation defects are often the result of toner cartridge problems. If
there is any doubt, always replace the toner cartridge before
troubleshooting image defects.
Use the following check list to ensure that the toner cartridge is still
operable.
• Inspect the toner cartridge for remaining toner.
• Check the expiration date of the toner cartridge (stamped on the cartridge
box).
• Check the toner cartridge to see if it has been disassembled or refilled.
• Ensure that the toner cartridge is seated properly in the cavity.
• Inspect the cartridge for leaking toner through worn seals. (If the drum has
been manually rotated it may have caused internal damage and toner spills
may result).
• Check the surface of the photosensitive drum in the cartridge to see if it has
been damaged or scratched. Touching the drum will contaminate the
photosensitive surface and may cause spotting and defects during printing.
• White areas on the page may indicate that the drum has been exposed to
light for too long. If white areas appear, stop the printer and wait a few
minutes. This should eliminate most defective images. If not, the toner
cartridge may be placed in a dark environment for several days, which may
restore some life to the drum.
Faulty Image Examples
This section illustrates some image defects and their possible causes. Since
there are many variables in the printing process, it is possible to encounter
image defects that are not shown in the following illustrations. If you find a
defect that is not illustrated, record the probable cause along with the
printing environmental conditions and save a copy of the defect for future
reference.Each example includes a table that lists, in order, the probable
causes of the image defect and the recommended repair action.
7
Troubleshooting
7-63