Troubleshooting tools and reference diagrams
Repetitive image defects
If the printer output has a consistent, repetitive defect, then use Table 7-6 Repetitive image defects
on page 179 to determine which part needs to be replaced based on the measured distance between
the repetitions of the defect.
Table 7-6 Repetitive image defects
Distance between identical
defects
Dirty or damaged roller Solution
37.7 mm (1.48 inches) Primary charging roller Replace the print cartridge.
43.0 mm (1.69 inches) Registration roller Replace the registration assembly.
44.0 mm (1.73 inches) Developing cylinder Replace the print cartridge.
46.2 mm (1.82 inches) Transfer roller Replace the transfer roller.
56.5 mm (2.22 inches) Fuser film Replace the fuser.
69.0 mm (2.72 inches) Pressure roller Replace the fuser.
75.4 mm (2.97 inches) Photosensitive drum Replace the print cartridge.
ENWW Troubleshooting tools and reference diagrams 179
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