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.
•Ensure that the toner cartridge has toner.
Full toner cartridge weight =3000 grams (106 oz)
Empty weight = 2200 grams (80.5 oz)
•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 printer 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.)
Note Toner Cartridges are rated for 15,000 images at 5% coverage. It is possible
to wear out the gears and the cartridge seals before TONER LOW is displayed
if the 15,000 image expectancy is exceeded.
•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
The “Reference” section contains Image troubleshooting and sample 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 examples. If you find a defect that is not depicted, record the
probable cause along with the printing environment conditions and save a
copy of the defect for future reference.
7-16 Troubleshooting