Repeating defects
If defects repeat at regular intervals on the page, use a ruler and the table below to identify the cause
of the defect. Place the top of the ruler at the first defect. The marking that is beside the next occurrence
of the defect indicates which component needs to be replaced.
Distance between defects
Product components that cause the defect
27 mm
Print cartridge (primary charging roller)
32 mm
Print cartridge (developer roller)
44 mm
Print engine (primary transfer roller)
49 mm
Print cartridge (replenishing/supply roller)
50 mm
Print engine (secondary transfer roller)
76 mm
Print cartridge (OPC)
77 mm
Fuser (fuser film)
78 mm
Fuser (pressure roller)