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 or other problems).
Problems |
Intervals |
Defective parts |
|---|---|---|
Problems with the printed result (other than black or white dots) |
29.9 mm |
Charge roller |
50.0 mm |
Registration roller |
|
25.1 mm |
Image transfer roller |
|
106.8 mm |
Fusing pressure roller |
|
108.9 mm |
Fusing roller |
|
113.0 mm |
Paper feed roller |
|
Black or white dots |
50.2 mm |
Development roller |
94.4 mm |
Drum |
The LED head contains 37 LED chips, each covering a line 8 mm wide. If a line 8 mm wide extending in the paper feed direction appears, an LED chip may be damaged. If so, replace the LED head.
