Manual
Solving Print Quality Problems
5-34 ❖ User Guide 
Repetitive horizontal 
dark streaks
Black lines running 
across the page 
perpendicular to the 
direction of paper 
movement.
Contaminated paper path. Print several blank sheets of paper to 
remove any toner accumulations.
Defective Laser Print Cartridge, or 
the cartridge is at its end of life.
Replace the Laser Print Cartridge.
Dark spots/marks
Defective Laser Print Cartridge. Replace the Laser Print Cartridge.
Table 5.3 Print quality problems
 (continued)
Problem Possible Cause(s) Corrective Action(s)
Table 5.3 Page 5 of 8










