Brother DCP9040CN
Troubleshooting. Dirt on Paper, Wrinkles
Dirt on Paper
User Check
- Check if the paper is loaded into the paper tray correctly.
- Turn over the stack of paper in the paper tray, or try rotating the paper 180° in the paper tray.
Step | Cause | Check | Result | Remedy |
---|---|---|---|---|
1 | Fuser unit dirty | Is there dirt around the entrance of the fuser unit | Yes | Clean the entrance of the fuser unit. |
Is the pressure roller ASSY dirty? | Yes | Clean the pressure roller ASSY. | ||
2 | Dirt on belt unit electrode | Is the electrode of the belt unit dirty? | Yes | Clean the electrode of the main body and the belt unit. |
3 | Dirt on waste toner box electrode | Is the electrode of the waste toner box dirty? | Yes | Clean the electrode of the main body |
4 | Belt unit dirty | Does dirt on the paper disappear after replacing the belt unit with a new one? | Yes | Replace the belt unit. |
5 | Toner leak from the waste toner box | Is the waste toner box full of toner? | Yes | Replace the waste toner box. Check the near/full sensor ASSY. Or, replace the main PCB ASSY. |
Wrinkles
User Check
- Check if the paper is loaded into the paper tray correctly.
- Turn over the stack of paper in the paper tray, or try rotating the paper 180° in the paper tray.
Step | Cause | Check | Result | Remedy |
---|---|---|---|---|
1 | Fuser unit failure | Do wrinkles on the paper disappear after replacing the fuser unit with a new one? | Yes | Replace the fuser unit. |