Brother MFC-J3520 Service Manual

Confidential
2-44

Error Code 8A
PF encoder sensor cannot detect rotation of the paper feed motor.
User Check
- Remove the jammed paper in jam clear cover part, platen part and front part.
 Error Code 8C
Excessive current protection activated for the driver IC during paper feed motor
operation.
User Check
- Remove the jammed paper in jam clear cover part, platen part and front part.
PAPER JAM LCD
Step Cause Solution
1 Foreign materials in the
feeding path
Remove foreign materials.
2 Paper feed motor harness
connection failure
Reconnect the paper feed motor harness.
3 PF encoder sensor harness
connection defective
Reconnect the PF encoder sensor harness.
4 PF roller belt out of place Set the PF roller belt into place.
5 PF encoder sensor defective Replace the PF encoder sensor PCB ASSY.
6 PF encoder disk defective Replace the PF encoder disk.
7 Paper feed motor defective Replace the paper feed motor.
8 Main PCB defective Replace the main PCB ASSY.
PAPER JAM LCD
Step Cause Solution
1 Foreign materials in the
feeding path
Remove foreign materials.
2 PF encoder sensor defective Replace the PF encoder sensor PCB ASSY.
3 Paper feed motor defective Replace the paper feed motor.
4 Main PCB defective Replace the main PCB ASSY.

Brother MFC-J3520 Specifications

General

Print Technology	Inkjet
Duplex Printing	Yes
Fax Modem Speed	33.6 kbps
Functions	Print, Copy, Scan, Fax
Standard Paper Capacity	250 sheets
Mobile Printing	Yes
Max Print Resolution	6000 x 1200 dpi
Scanner Type	Flatbed + ADF
Max Scan Resolution	1200 x 2400 dpi
Connectivity	USB, Ethernet, Wi-Fi
Automatic Document Feeder (ADF)	Yes
Ink Cartridges	Black, Cyan, Magenta, Yellow
Print Speed (Black)	Up to 35 ppm (draft), 12 ppm (ISO)
Print Speed (Color)	27 ppm
Display	2.7" Touchscreen Color LCD