Image problems may appear at regular intervals that depend on the circumference of certain components.
The following diagram shows the possible symptoms (black or white dots at regular intervals).
[A]: Paper feed direction
[B]: Problems at regular intervals
29.9 mm intervals: Charge roller
36.8 mm intervals: Registration roller
44.9 mm intervals: Development roller
61.2 mm intervals: Transfer roller
94.2 mm intervals: Drum
94.2 mm intervals: Pressure roller
109.9 mm intervals: Hot roller
