Question about Brother MFC-8840D All-In-One Laser Printer
The Fax and Scan switches on the front panel PCB have broken - the buttons are OK but they cannot be depressed so I guess the switches underneath are dead.
I have identified that the replacement part as the LCD panel LG4383001, which looks easy to replace (two screws and some connectors), but I cannot work out how to remove the front control panel cover to do the work - anyone have any knowledge of this or a location where I can download a service manual.
Oh - and just before you freak out - I am a qualified electronics engineer!!
Looks easy to replace boy did you pick the wrong model, I've done this job, what a pain of a design, you just want to get to those four screws that hold that operations panel in, heres what needs to be done first, remove left rear corner covers(2) and disconnect wires cables that go to Doc feeder and scanner(27millon), unscrew and remove doc feeder, now you can take out scanner top with glass, from base to reveal screws for operations panel. flow chart below .. and dont order that part it is the LCD display only - you want number depends on country but i think the states is .LE8846001 , PANEL UNIT, MFC8840D FOR ASA/OCE not LG4383001 LCD
And dont swear when doing job remember your a qualified engineer!! have fun,
DX FEED ASSY(duplex)
(3.5 (1) and (2) are contained.
DRIVER PCB ACCESS COVER
p.s. the switch itself is a lot of the time ok it is the plastic arm part that breaks..
Posted on Nov 09, 2007
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Posted on Jan 02, 2017
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