Brother MFC-J3520 Service Manual

Confidential
2-49

Error Code BC
Level of second side CIS scan result is detected as abnormal during FAX transmission
(after re-try.)
 Error Code BD
Black level value abnormal at scanning.
Unable to Scan BC LCD
Step Cause Solution
1 White level data failure Carry out maintenance 55 to obtain white level
data.
2 White reference tape of
document pressure bar of ADF
cover stained
Clean the white reference tape of document
pressure bar of ADF cover.
3 Second side CIS unit defective Replace the second side CIS unit.
4 White reference tape of
document pressure bar of ADF
cover damage, broken
Replace the ADF cover.
5 Main PCB defective Replace the main PCB ASSY.
Unable to Scan BD LCD
Step Cause Solution
1 Black level data failure Carry out maintenance 55 to obtain white level
data.
2 First side or second side CIS
unit defective
Replace the first side or second side CIS unit.
3 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