6.Troubleshooting
198
development roller.
Solutions
Lower the image density in UP mode.
Four-line LCD panel: UP menu > [System Settings] > [Image Density]: Set to [-3].
Touch panel: UP menu > [Setting] > [System Settings] > [Image Density]: Set to [-3].
Mottled Image on Solid Images
Problem
Mottled image may occur around the toner near end alert of a 7K cartridge on solid images on the
second page in duplex mode.
Causes
Toner inside the cartridge has deteriorated.
Solutions
Replace the AIO with a new one.
Toner Scattered on Horizontal Lines
Problem
Toner may spread below horizontal lines.
Causes
Toner is scattered because of water contained in the paper.
Solutions
1. Ask the customer to write the horizontal lines thicker.
2. Lower the image density in UP mode.
Four-line LCD panel: UP menu > [System Settings] > [Image Density]
Touch panel: UP menu > [Setting] > [System Settings] > [Image Density]
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