Brother MFC-J3520 Service Manual

Confidential
9.8 ADF Unit, Document Scanner Unit and ADF Hinge ............................................3-48
9.9 ADF Document Support ...................................................................................... 3-52
9.10 ADF Cover ASSY and ADF Cover Side Cover.................................................... 3-53
9.11 ADF Front Cover ................................................................................................. 3-54
9.12 ADF Side Cover L................................................................................................ 3-54
9.13 ADF Side Cover R...............................................................................................3-55
9.14 ADF Back Cover.................................................................................................. 3-55
9.15 Document Separation Roller ASSY..................................................................... 3-56
9.16 ADF Separation Pad............................................................................................ 3-58
9.17 Second Side CIS Unit..........................................................................................3-59
9.18 Second Side CIS Flat Cable................................................................................ 3-61
9.19 First Side Document Scanning Position Sensor PCB and
Second Side Document Scanning Position Sensor PCB
(Duplex Scanning Models Only) .......................................................................... 3-66
9.20 Document Detection Sensor/Document Width Sensor PCB ...............................3-67
9.21 First Side CIS Unit............................................................................................... 3-68
9.22 First Side CIS Flat Cable and FFC Film .............................................................. 3-70
9.23 Front Cover L.......................................................................................................3-73
9.24 Inner Media Cover............................................................................................... 3-74
9.25 Panel ASSY......................................................................................................... 3-76
9.26 LCD PCB ASSY ..................................................................................................3-78
9.27 LCD ..................................................................................................................... 3-80
9.28 Touch Panel ASSY.............................................................................................. 3-80
9.29 NFC PCB............................................................................................................. 3-81
9.30 Ink Cartridge Cover ............................................................................................. 3-81
9.31 Lower Side Cover L............................................................................................. 3-82
9.32 Lower Side Cover R ............................................................................................3-82
9.33 Upper Side Cover L............................................................................................. 3-83
9.34 Upper Side Cover R ............................................................................................3-83
9.35 Side Cover L and Side Cover R .......................................................................... 3-84
9.36 Upper Cover ........................................................................................................ 3-85
9.37 Wireless LAN PCB ASSY.................................................................................... 3-86
9.38 Document Scanner Sensor PCB......................................................................... 3-87
9.39 Main PCB ASSY.................................................................................................. 3-89
9.40 MJ PCB ASSY..................................................................................................... 3-91
9.41 Jam Clear Cover..................................................................................................3-92
9.42 T1 Bank ASSY.....................................................................................................3-94
9.43 Power Supply PCB ASSY ................................................................................... 3-95
9.44 Carriage PCB ASSY............................................................................................3-98

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