Dots and horizontal streaks appear in the paper feeding direction periodically
Cause | Solution | Reference |
|---|---|---|
| If dots or streaks of a specific color appear at intervals of about 75 mm, the green tube of the image drum is scratched or dirty. | Please replace the image drum. | |
| If dots or streaks of various colors appear at intervals of about 94 mm, the fuser unit is scratched or dirty. | Replace the fuser unit. | |
| If the intervals are about 38 mm, parts inside the belt unit are broken. | Replace the belt unit. | |
| If the intervals are about 34 mm or 43 mm, parts in the image drum are damaged. | Please replace the image drum. | |
If the intervals are about 30 mm, there are foreign objects in the image drum. | Open and close the front cover and print again. | |
| If the intervals are about 31 mm, the resist roller is dirty. | Open the front cover and wipe the resist roller with soft tissue paper. | |
| The image drum has been exposed to light. | Install the image drum back to the printer, and leave the printer idle for a few hours. If the problem persists, replace the image drum. | |
| Dirt has deposited on the paper transfer path. | Test print a few pages. |
