Brother MFC-J2320 Service Manual page 80

Error Code 81

Wrong Paper
Recording paper size error (other than FAX/list printing)
Registration sensor and paper width sensor detects papers smaller than specified size.
User Check
- Check whether the recording paper being used is within the specification.
- Check that recording paper is loaded in correct direction in the paper tray.
- Check that dark recording paper is not used.
- Clean the platen.
Step
1 Registration actuator caught
on the surrounding parts
2 CR encoder strip stained
3 PF encoder disk stained
4 CR encoder strip defective
5 PF encoder disk defective
6 Paper width sensor defective
7 PF encoder sensor defective
8 Registration sensor defective
9 Carriage motor defective
10 Paper feed motor defective
11 Main PCB defective
Cause
Set the registration actuator into place.
Clean the CR encoder strip.
Clean the PF encoder disk and flushing guide.
(refer to
Replace the CR encoder strip.
Replace the PF encoder disk.
Replace the carriage PCB ASSY.
Replace the PF encoder PCB ASSY.
Replace the registration sensor PCB ASSY.
Replace the carriage motor ASSY.
Replace the paper feed motor.
Replace the main PCB ASSY.
2-43
Solution
Chapter 3, Section 1.)
LCD
Confidential