Brother MFC-7240 - Double Feeding; Dirt on Paper; Paper Feeding at an Angle

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Confidential
3.5.3 Double feeding
3.5.4 Dirt on paper
3.5.5 Paper feeding at an angle
<User Check>
- Check that the paper is loaded into the paper tray correctly.
- Check that the thickness of the paper is 60 to 105 g/m
2
.
- Clean the separation pad.
- Check that too much paper is not loaded in each tray.
- Check that the backside of used paper or damp (wet) paper is not used.
Step Cause Remedy
1 Pick-up roller failure Replace the paper feeding kit.
<User Check>
- Replace the toner cartridge with a new one.
- Check that the drum unit or corona wire is not dirty, installation environment is
appropriate, and the corona wire cleaning lever is at the specified position.
Step Cause Remedy
1
Fuser unit dirty Clean the entrance of the fuser unit, or clean
the pressure roller.
2 Paper eject roller dirty Clean the eject roller.
<User Check>
- Check that the paper is loaded into the paper tray correctly.
- Adjust the paper guide corresponding to the paper size.
- Check that there is not too much paper set in the tray.
- Check that the thickness of the paper is 60 to 105 g/m
2
.
- Remove the protective sheet of the bottom side of the drum unit.
- Check that the backside of used paper or damp (wet) paper is not used.
Step Cause Remedy
1 Registration clutch ASSY failure Replace the registration clutch ASSY.
2 Main PCB failure Replace the main PCB ASSY.