Brother mfc8440 Service Manual page 234
Hide thumbs
Also See for mfc8440:
- User manual (426 pages) ,
- Software user's manual (183 pages) ,
- Quick setup manual (52 pages)
Table of Contents
Advertisement
M-12
Engine PCB error
Possible cause
Step
Fixing unit
1
ground wire
connection
Harness
2
connection
failure
Engine PCB
3
Main PCB
4
M-14
DIMM failure
Possible cause
Step
DIMM failure
1
Check
Is the ground wire on the fixing
unit secured with the shoulder
screw correctly?
Is the connection of the
connector between the main
PCB and the engine PCB
connected correctly?
Is the problem solved by
replacing the engine PCB?
Is the problem solved by
replacing the main PCB?
Check
Try installing DIMM into
another machine, then check
the memory size in Print
Settings.
Is it possible to print the data?
6-27
MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN
Result
Remedy
No
Secure the ground wire
correctly with the shoulder
screw.
No
Reconnect the connectors
securely.
Yes
Replace the engine PCB.
Yes
Replace the main PCB.
Result
Remedy
Yes
Replace the main PCB.
No
Replace the DIMM.
SERVICE MANUAL
Advertisement
Chapters
Table of Contents
Troubleshooting
