Brother MFC-J6920DW Service Manual

Confidential
2-48

Error Code AC
Level of second side CIS scan result is detected as abnormal during FAX transmission
(first transmission.)
 Error Code AF
CIS positioning abnormal (Home position cannot be found.)
Unable to Scan AC 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 AF LCD
Step Cause Solution
1 Scanner belt out of place Set the scanner belt into place.
2 Document scanner motor
harness connection failure
Reconnect the document scanner motor
harness.
3 First side CIS flat cable
connection failure
Reconnect the first side CIS flat cable.
4 First side CIS flat cable and
second side CIS flat cable are
connected vice versa.
Reconnect the first side CIS flat cable and the
second side CIS flat cable correctly.
5 Black reference tape stained Clean document cover glass at black reference
tape.
6 First side CIS flat cable
defective
Replace the first side CIS flat cable.
7 First side CIS unit defective Replace the first side CIS unit.
8 Document scanner motor
defective
Replace the document scanner unit.
9 Main PCB defective Replace the main PCB ASSY.

Brother MFC-J6920DW Specifications

General

Type	all in one
Tray Capacity	500
Automatic Document Feeder Capacity	35 sheets
Paper Size	11" x 17"
Paper Handling	up to 500 sheets
Color Print Speed	20 pages per minute
Mono Print Speed	22 pages per minute
Print Resolution Mono	up to 6000 x 1200
Print Resolution Color	up to 6000 x 1200
Scanner Type	flatbed
Scan Resolution	up to 2400 x 1200
Copier Resolution Mono	up to 2400 x 1200
Copier Resolution Color	up to 2400 x 1200
Fax Function	yes
Cartridges	lc103bk/c/m/y
Number Of Cartridges	4
Internal Memory	no
Memory Card	yes
Network	wireless
Connectivity	usb
OS Compatibility	pc: windows server 2003, server 2003 r2, server 2008, server 2008 r2, server 2012, xp home, xp professional, vista, 7 or 8, mac: os x v10.6x, 10.7x or 10.8x
Mobile Devices Connection	yes

Weight and Dimensions

Height	21.9 inches
Width	17 inches
Net Weight	36.4 pounds