Brother MFC-J5520DW - Troubleshooting Memory, Paper Jams, and Touchscreen Errors; Memory Full and Paper Jam Errors; Tray Detection and Touchscreen Initialization Errors

Confidential
2-29
Carriage does not move. Detected by the CR encoder sensor.
User Check
- Remove the jammed paper in platen part.

Error Code 30
Unable to Print 30
LCD
Step Cause Solution
1 Foreign materials in the engine
unit
Remove foreign materials.
2 CR encoder strip out of place Set the CR encoder strip into place.
3 CR timing belt out of place Set the CR timing belt into place.
4 Head cover out of place Set the Head cover into place.
5 Carriage motor harness
connection failure
Reconnect the carriage motor harness.
6 Carriage flat cable connection
failure
Reconnect the Carriage flat cable.
7 CR encoder strip stained Clean the CR encoder strip.
8 CR encoder strip defective Replace the CR encoder strip.
9 CR encoder sensor defective Replace the carriage PCB ASSY.
10 Carriage motor defective Replace the carriage motor ASSY.
11 Main PCB defective Replace the main PCB ASSY.