Brother MFC-J6920DW Service Manual

Confidential
2-46

Error Code A3
Document detection sensor detects that document is pulled out during document
scanning. Or, the document scanning position sensor cannot detect document within
specified time.
User Check
- Remove the jammed document.
 Error Code A4
ADF cover sensor detects opened cover state.
User Check
- Close the ADF cover.
Document Jam LCD
Step Cause Solution
1 Foreign materials in the
document feeding path
Remove foreign materials.
2 Document detection actuator
caught on the surrounding
parts
Set the document detection actuator into place.
3 Document scanning position
actuator out of place
Set the document scanning position actuator
into place.
4 Document scanning position
sensor harness connection
failure
Reconnect the document scanning position
sensor harness.
5 Document scanning position
sensor defective
Replace the document scanning position
sensor PCB ASSY.
6 Document pick-up roller worn
out
Replace the document separation roller ASSY.
7 ADF motor defective Replace the ADF motor.
8 Main PCB defective Replace the main PCB ASSY.
Cover is Open LCD
Step Cause Solution
1 ADF cover sensor harness
connection failure
Reconnect the ADF cover sensor harness.
2 ADF cover boss broken Replace the ADF cover.
3 ADF cover sensor defective Replace the ADF unit.
4 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