Paper Feed Motor Cannot Stop. Or, Pf Encoder Sensor Cannot Detect; Document Scanning Position Sensor Detects Length Of Document - Brother MFC-J3520 Service Manual
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Also See for MFC-J3520:
- User manual (220 pages) ,
- Quick setup manual (45 pages) ,
- Safety manual (21 pages)
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Error Code 8F
Unable to Print 8F
Paper feed motor cannot stop. Or, PF encoder sensor cannot detect rotation of the
paper feed motor.
Step
1
Paper feed motor harness
connection failure
2
Paper feed roller belt out of
place
3
Main PCB defective
Error Code A1
Cover is Open
scanner sensor detects that
Document
User Check
- Close the document scanner unit.
Step
1
Document scanner actuator
out of place
2
Document scanner sensor
defective
3
Document scanner unit boss
broken
4
Main PCB defective
Error Code A2
Document Jam
Document scanning position sensor detects length of document 900 mm or more.
User Check
- Check whether the document scanned is longer than the specified limit.
- Remove the jammed document.
Step
1
Document scanning position
actuator caught on the
surrounding parts
2
Document scanning position
sensor defective
3
Document feed roller worn out/
ADF motor defective
4
Main PCB defective
Cause
Reconnect the paper feed motor harness.
Set the paper feed roller belt into place.
Replace the main PCB ASSY.
document
Cause
Set the document scanner actuator into place.
Replace the document scanner sensor.
Replace the document scanner unit.
Replace the main PCB ASSY.
Cause
Set the document scanning position actuator
into place.
Replace the document scanning position
sensor.
Replace the ADF unit.
Replace the main PCB ASSY.
2-45
Solution
scanner is open.
Solution
Solution
LCD
LCD
LCD
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Table of Contents
Troubleshooting
