Brother DCP-7090 Service Manual page 122

 Paper jam at the eject section
<User Check>
• Check that the paper is set in each paper tray correctly.
• Flip over the paper in each paper tray or rotate the paper 180°.
• Adjust each paper guide according to the paper size.
• Check that there is not too much paper set in each paper tray.
• Check that the thickness of the paper is 60 to 163 g/m
and 60 to 230 g/m
• Flip through the paper and reset it in the paper tray.
Step
Foreign object in the rear of the
1
machine
2 Eject actuator coming off
Connection failure of the eject
3
sensor harness
4 Fuser cover attachment failure
5 Eject sensor failure
6 Paper feed motor failure
Damaged gears in the paper
7
feed drive system
8 Damaged fuser unit
9 Main PCB failure
 Paper jam at the duplex tray
<User Check>
• Flip over the paper in each paper tray or rotate the paper 180°.
• Check that the thickness of the paper is 60 to 105 g/m
• Flip through the paper and reset it in the paper tray.
• Use paper specified by the manufacturer.
• Check that the paper size is matched to the setting for the duplex printer.
Step
Foreign object in the duplex
1
paper feeding system
2 Fuser cover attachment failure
3 Back cover failure
4 Duplex tray failure
5 Main PCB failure
2
for the MP tray.
Cause
Cause
2-82
2
for the paper tray,
Remedy
Remove the foreign object.
Reattach the eject actuator.
Reconnect the eject sensor harness.
Reattach the fuser cover.
Replace the eject sensor PCB ASSY.
Replace the paper feed motor.
Replace the frame L unit.
Replace the fuser unit.
Replace the main PCB ASSY.
2
for the duplex tray.
Remedy
Remove the foreign object.
Reattach the fuser cover.
Replace the back cover.
Replace the duplex tray.
Replace the main PCB ASSY.
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