Problem-solving diagrams
Repetitive image defects
If the product output has a consistent, repetitive defect, use the table in this section to determine which
part needs to be replaced based on the measured distance between the repetitions of the defect.
NOTE: The following table replaces the graphical repetitive defect ruler. You can make your own ruler
by using these measurements.
Table 7-1 Repetitive image defects
Distance between identical defects Component Solution
30.8 mm ( 1.21 in) Print cartridge Replace the print cartridge. See Print
cartridge on page 101.
37.7 mm ( 1.48 in) Print cartridge Replace the print cartridge. See Print
cartridge on page 101.
41.0 mm ( 1.61 in) Fuser Replace the fuser. See Fuser
on page 134.
46.3 mm ( 1.82 in) Transfer roller Replace the transfer roller. See
Transfer roller on page 108.
55.2 mm ( 2.17 in) Paper-pickup assembly Replace the paper-pickup assembly.
See
Paper-pickup assembly
on page 136.
56.5 mm ( 2.22 in) Fuser Replace the fuser. See Fuser
on page 134.
76.3 mm ( 3.00 in) Print cartridge Replace the print cartridge. See Print
cartridge on page 101.
144 Chapter 7 Solve problems ENWW
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