Brother HL-2290 Service Manual page 67

 Error code 7100
After the registration rear sensor detects the end of paper pass and the specified period of
time has passed, the eject sensor continues to detect paper pass.
<User Check>
• Remove the jammed paper.
• Check if the back cover is open during duplex printing.
Step
Foreign object in the rear of the
1
machine
Eject actuator caught in some
2
sections of the machine
3 Fuser cover attachment failure
4 Back cover attachment failure
5 Eject sensor failure
6 Back cover failure
7 Damaged fuser drive gear 64R/36R
Damaged gears in the paper
8
feed drive system
9 Fuser unit failure
10 Main PCB failure
 Error code 7200
When the paper is fed from the MP tray, after the MP paper empty sensor detects paper pass,
the registration rear sensor does not detect paper pass after a set period of time.
<User Check>
• Remove the jammed paper.
• Add the paper properly using the MP tray paper guide.
• Check if the papers loaded in the MP tray is not held down with your hand.
• Check if the double feed occurs in the MP tray.
• Close the front cover correctly.
Step
Foreign object in the rear of the
1
machine
Registration rear actuator
2 coming off or caught in some
sections of the machine
Connection failure of the
3 registration front/rear sensor
PCB harness
4 Registration rear sensor failure
Damaged gears in the paper
5
feed drive system
6 Main PCB failure
Cause
Remove the foreign object.
Reattach the eject actuator.
Reattach the fuser cover.
Reattach the back cover.
Replace the eject sensor PCB ASSY.
Replace the back cover.
Replace the fuser drive gear 64R/36R.
Replace the frame L unit.
Replace the fuser unit.
Replace the main PCB ASSY.
Cause
Remove the foreign object.
Reattach the registration rear actuator.
Reconnect the registration front/rear
sensor PCB harness.
Replace the actuator holder ASSY.
Replace the frame L unit.
Replace the main PCB ASSY.
2-45
Remedy
Remedy
Confidential