Issue
Vertical black streaks appear on the output.
Cause and solution
This section describes how to handle if the vertical black streaks appear on the output.
Cause and solution
Is the correct type of paper loaded in the machine?
Make sure you load paper that meets the requirements for use.
Cause and solution
Cause and solution
Are the feeder roller, and the scanning area clean?
Clean the feeder roller, and the scanning area.
Cause and solution
Cause and solution
Is the fixing unit clean?
In the following cases, the fixing unit may be dirty. Clean the fixing unit.
When black streaks appears on the printed paper
When a toner cartridge is replaced
Cause and solution
Caution
For instructions on how to clean the fixing unit, see "Cleaning the Fixing Unit," in the "Cleaning the Machine."
Cause and solution
Is the toner cartridge installed properly?
Make sure that the toner cartridges are properly installed.
Cause and solution
Caution
For instructions on how to install the toner cartridges, see "Preparing to Use the Toner Cartridges" in the e-Manual.