Other Problems 
 
SM  6-33  M0C3/M0C4/M0C5/M0C6/M0C7 
6.7.8  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. 
6.7.9  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]