Image Quality Trouble
445
Problem Solving
16
Black dots are
printed.
The drum cartridge has
deteriorated or is damaged.
Replace the drum cartridge with a new
one.
Refer to "Replacing Drum Cartridge (for
customers having a spot maintenance
contract)" (P.423).
Black lines are
printed.
The drum cartridge has
deteriorated or is damaged.
Replace the drum cartridge with a new
one.
Refer to "Replacing Drum Cartridge (for
customers having a spot maintenance
contract)" (P.423).
The document glass on the
document feeder is dirty.
Clean the document glass.
Refer to "Cleaning the Film and Constant
Velocity Transport Glass" (P.431).
Dirt appears at
equal intervals.
The paper feeder is dirty. Print a few pages to remove the dirt.
The drum cartridge has
deteriorated or is damaged.
Replace the drum cartridge with a new
one.
Refer to "Replacing Drum Cartridge (for
customers having a spot maintenance
contract)" (P.423).
White dots
appear in black
filled areas.
The paper is unsuitable. Load suitable paper.
Refer to "Loading Paper" (P.249).
The drum cartridge has
deteriorated or is damaged.
Replace the drum cartridge with a new
one.
Refer to "Replacing Drum Cartridge (for
customers having a spot maintenance
contract)" (P.423).
Symptom Cause Remedy