Brother MFC-J6930DW Service Manual

Confidential
2-92
4.10.7 Noise comes from machine
4.10.8 “Unusable Device” is displayed
< User Check >
- Disconnect the unsupported USB device.
Step Cause Solution
1 Foreign materials in the
recording paper path
Remove foreign materials.
2 Foreign materials around the
maintenance unit
Remove foreign materials.
3 CR encoder strip stained Clean the CR encoder strip.
4 PF encoder disk stained Clean the PF encoder disk.
5 Looseness of the CR timing
belt
Re-hook the CR timing belt properly.
6 Looseness of the switchback
roller belt
Re-hook the switchback roller belt properly.
7 Looseness of the paper feed
roller belt
Re-hook the paper feed roller belt properly.
8 Looseness of the paper
ejection roller belt
Re-hook the paper ejection roller belt properly.
9 Looseness of the 3rd tray
paper feed belt
Re-hook the 3rd tray paper feed belt properly.
10 Looseness of the CIS drive
belt
Re-hook the CIS drive belt properly.
11 Paper feed motor not mounted
in place
Set the paper feed motor into place.
12 Carriage motor not mounted in
place
Set the carriage motor into place.
13 3rd tray paper feed motor not
mounted in place
Set the 3rd tray paper feed motor into place.
14 CR encoder strip defective Replace the CR encoder strip.
15 PF encoder disk defective Replace the PF encoder disk.
16 Maintenance unit defective Replace the maintenance unit.
17 ADF unit defective Replace the ADF unit.
18 Document scanner unit
defective
Replace the document scanner unit.
Step Cause Solution
1 Main PCB defective Replace the main PCB.

Brother MFC-J6930DW Specifications

General

N-up printing	2, 4, 9, 16, 25
Duplex printing	Yes
Print technology	Inkjet
Maximum resolution	1200 x 4800 DPI
Print speed (ISO/IEC 24734) mono	22 ipm
Print speed (ISO/IEC 24734) color	20 ipm
Time to first page (black, normal)	6 s
Duplex print speed (ISO/IEC 24734) mono	12 ipm
Duplex print speed (ISO/IEC 24734) color	11 ipm
Print speed (black, normal quality, A4/US Letter)	35 ppm
Print speed (color, normal quality, A4/US Letter)	27 ppm
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Copy speed (black, normal quality, A4)	12 cpm
Copy speed (color, normal quality, A4)	9 cpm
Scan to	E-mail, E-mail Server, FTP, File, Image, OCR, USB
Scan drivers	SANE, TWAIN, WIA
Scanner type	Flatbed & ADF scanner
Grayscale levels	256
Input color depth	48 bit
Output color depth	24 bit
Image formats supported	JPG
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
Faxing	Mono faxing
Fax memory	200 pages
Modem speed	33.6 Kbit/s
Display	LCD
Control type	Touch
Product color	Black
Display diagonal	3.7 \
Market positioning	Business
Internal memory	256 MB
Card reader integrated	No
Paper tray media types	Glossy paper, Plain paper, Recycled paper, Thin paper
Non-ISO print media sizes	Folio
ISO A-series sizes (A0...A9)	A3, A4, A5, A6
Maximum ISO A-series paper size	A3
Standard interfaces	Ethernet, NFC, USB 2.0, Wireless LAN
USB 2.0 ports quantity	1
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Security features	APOP, SMTP-AUTH, SSL / TLS (IPPS, HTTPS, FTPS, SMTP, POP3, IMAP4), SNMP v3 802.1x (EAP-MD5, EAP-FAST, PEAP, EAP-TLS, EAP-TTLS), Kerberos
Cabling technology	10/100Base-T(X)
Security algorithms	64-bit WEP, 128-bit WEP, 802.1x RADIUS, SMTP-AUTH, WPA-PSK, WPA2-PSK
Ethernet LAN data rates	10, 100 Mbit/s
Online services supported	Dropbox, Evernote, Facebook, Flickr, Google Drive, OneDrive, OneNote
Mobile printing technologies	Apple AirPrint, Brother iPrint & Scan, Google Cloud Print, Mopria Print Service
Package depth	568 mm
Package width	681 mm
Package height	500 mm
Package weight	28300 g
Power consumption (off)	0.04 W
Power consumption (sleep)	1.7 W
Power consumption (standby)	6.5 W
Power consumption (average operating)	29 W
Sustainability certificates	Blue Angel, ENERGY STAR
Paper input type	Paper tray
Total input capacity	250 sheets
Total output capacity	100 sheets
Auto document feeder (ADF) input capacity	50 sheets
Digital sender	-
Maximum duty cycle	30000 pages per month
Recommended duty cycle	250 - 2000 pages per month
Mac operating systems supported	Mac OS X 10.9 Mavericks
Mobile operating systems supported	Android
Windows operating systems supported	Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Home, Windows 10 Home x64, Windows 10 Pro, Windows 10 Pro x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64
Bundled software	- Brother Control Center Version 4 - Nuance PaperPort Version 14 - Brother Control Center Version 2
Noise level	50 dB
Harmonized System (HS) code	84433100

Weight and Dimensions

Depth	477 mm
Width	575 mm
Height	375 mm