15 Problem Solving
412
Problem Solving
15
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" (P.62).
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" (P.62).
The constant velocity
transport glass for the
document feeder is dirty.
Clean the constant velocity transport glass.
Refer to "Cleaning the Constant Velocity
Transport Glass and Document Presser" (P.78).
Dirt appears at
equal intervals.
The paper path 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" (P.62).
White dots
appear in black
filled areas.
The paper is unsuitable. Load suitable paper.
Refer to "Loading Paper" (P.45).
The drum cartridge has
deteriorated or is damaged.
Replace the drum cartridge with a new
one.
Refer to "Replacing Drum Cartridge" (P.62).
Symptom Cause Remedy
Paper feed direction