Paper Tray 2 Detection Sensor Detects No Paper Tray 2 State; Switchback Sensor Detects No Paper Tray 1 State - Brother MFC-J2320 Service Manual

Error Code 66

Paper Tray #2 not detected

Paper tray 2 detection sensor detects no paper tray 2 state.

User Check
- Set paper tray 2.
Step
1 Paper tray 2 detection sensor
harness connection failure
2 Sensor relay PCB harness
connection failure
3 Paper tray 2 detection sensor
defective
4 Sensor relay PCB defective
5 Paper tray 2 defective
6 Main PCB defective
Error Code 67

Paper tray #1 not detected

Switchback sensor detects no paper tray 1 state.

User Check
- Set paper tray 1.
Step
1 Switchback actuator caught on
the surrounding parts
2 Switchback sensor harness
connection failure
3 Sensor relay PCB harness
connection failure
4 Outer paper guide wear/
defective
5 Sensor relay PCB defective
6 Paper tray 1 defective
7 Main PCB defective
Cause
Reconnect the paper tray 2 detection sensor
harness.
Reconnect the sensor relay PCB harness.
Replace the paper tray 2 detection sensor.
Replace the sensor relay PCB ASSY.
Replace the paper tray 2.
Replace the main PCB ASSY.
Cause
Set the switchback actuator into place.
Reconnect the switchback sensor harness.
Reconnect the sensor relay PCB harness.
Replace the outer paper guide.
Replace the sensor relay PCB ASSY.
Replace the paper tray 1.
Replace the main PCB ASSY.
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LCD
Solution
LCD
Solution
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