Table 7-19

Repetitive Defects

 

 

 

Possible Cause

Action

 

 

Toner Cartridge. The circumference of

Replace the Toner Cartridge.

the photoconductive drum is 3.75 inches

 

(94mm). The circumference of the

 

developer roller is 2 inches (51mm). If a

 

defect appears in the print image at

 

these intervals, assume the defect is

 

associated with the Toner Cartridge.

 

 

 

Fuser Assembly. The Fuser Roller’s

Clean the Fuser Assembly rollers.

circumference is approximately

Replace the assembly if necessary.

2.5 inches (63mm) for the LJ4, and 3-1/8

 

(79mm) for the LJ4+/5. If a defect

 

appears at this interval, assume the

 

defect is associated with the Fuser

 

Assembly.

 

 

 

 

Dirty Roller. Any dirty roller along the

Examine and clean rollers along the

paper path may result in a pattern of

paper path.

repetitive print image defects.

 

 

 

 

For further information on interval dimensions, refer to the Repetitive Defect Ruler, Figure 7-19.

Troubleshooting 7-41