| Problem |
Cause |
Solution |
How common* |
Comments |
| Vertical dots |
Defective engine controller board. |
Replace the engine controller board |
5 |
|
| Vertical dots |
Deformed or deteriorated transfer roller |
Replace the transfer roller |
5 |
|
| Vertical dots |
Poor contact between the static eliminator and
the engine controller board |
Clean the contacts, if contaminated. If the problem
remains after cleaning, or parts are damaged or deformed, replace
them. |
2 |
|
