MF 6990dn - Agoris C935
- 119 -
14 -
Troubleshooting
Pale printing
The laser lenses need cleaning. Clean the laser lenses (see Cleaning the printer laser
lenses [
101]).
The media used is damp.
Remove the loaded media and replace it with dry
media.
One of the toner cartridges is
nearly empty.
Replace the toner cartridge.
One or more toner cartridges are
defective.
Remove the toner cartridges and check their
condition.
Replace the defective toner cartridge(s).
The type of media is not
correctly defined in the printer
driver.
The type of media used (envelopes, labels, cards,
thick or glossy media, transparencies) must be
defined in the printer driver.
The ink saving mode is
activated.
In this mode, the quantity of toner consumed by
printing is reduced.
Printing too dark
One or more toner cartridges are
defective.
Remove the toner cartridges and check their
condition.
Replace the defective toner cartridge(s).
Fuzzy printing
Stained back-
ground
Lack of lustre
One or more toner cartridges are
defective.
Remove the toner cartridges and check their
condition.
Replace the defective toner cartridge(s).
The print heads are not aligned. Recalibrate the colours (see Calibrating colours
[
105]).
Non uniform
printing or colour
density
One or more toner cartridges are
defective or nearly empty.
Remove the toner cartridges and check their
condition.
Replace the defective or nearly empty toner
cartridge(s).
The machine is not resting on a
flat surface.
Place the machine on a strong, flat surface.
Irregular printing
Spotted image
The media used is damp.
Check the ambient humidity in the media storage
room.
Remove the loaded media and replace it with dry
media.
The media used is not
compatible (format, thickness,
type, etc.).
Only use compatible media supports (see
Recommendations for the paper [
148]).
One or more toner cartridges are
defective.
Remove the toner cartridges and check their
condition.
Replace the defective toner cartridge(s).
Symptom
Possible cause
Solution
