Brother MFC-J3520 Service Manual

Confidential
2-21
4 TROUBLESHOOTING
4.1 Error Cause and Solutions
 Error Code 13
Defective during duplex-printing
Registration sensor detects paper feed condition at out of specified timing during
switchback.
User Check
- Check whether the recording paper being used is within the specification.
 Error Code 15
Paper jam during duplex ejecting
Recording paper is not able to be ejected since it is longer than 840 mm when ejecting
the paper.
User Check
- Remove the jammed paper.
- Check whether the recording paper being used is within the specification.
- Firmly set the paper tray to the rear end.
Paper Jam LCD
Step Cause Solution
1 Switchback actuator caught on
the surrounding parts
Set the switchback frame ASSY into place.
2 Registration actuator caught
on the surrounding parts
Set the registration actuator into place.
3 Registration sensor defective Replace the registration sensor PCB ASSY.
4 Main PCB defective Replace the main PCB ASSY.
Paper Jam LCD
Step Cause Solution
1 Foreign materials in the
recording paper path
Remove foreign materials.
2 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