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Brother MFC-J4420DW opening procedure

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Instructions on how to remove the lid on this printer in order to be able to open the device and repair it.

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  1. Brother MFC-J4420DW opening procedure, Removing hood holder: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Brother MFC-J4420DW opening procedure, Removing hood holder: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Brother MFC-J4420DW opening procedure, Removing hood holder: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Disconnect the power cord of the printer

    • Open the printer as you would to access the USB port.

    • Pull out the rear end of the hood holder (see picture two). After that you can remove the top part of the hood holder.

    • Now remove the hood holder completely.

    • It is quite useful to put the printer near something so that you can lean the top against something, for example a wall.

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  2. Brother MFC-J4420DW opening procedure, Removing cables connected to the top part of the printer: crwdns2935265:02crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Brother MFC-J4420DW opening procedure, Removing cables connected to the top part of the printer: crwdns2935265:02crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Brother MFC-J4420DW opening procedure, Removing cables connected to the top part of the printer: crwdns2935265:02crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Next remove the cover on the left side of the printer (lift the right side of the cover first).

    • Unplug the black ribbon cable, the blue and the white plugs from its sockets and unscrew the cable which is attached with a screw (see second image)

    • Remove the red and white plugs from its sockets as shown in picture three.

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  4. Brother MFC-J4420DW opening procedure, Remove the top part of the printer: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Brother MFC-J4420DW opening procedure, Remove the top part of the printer: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Brother MFC-J4420DW opening procedure, Remove the top part of the printer: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Flip the plastic part shown in picture one up to the top part of the printer

    • Now you can easily remove the top of the printer by pushing it away from the printer (not up).

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  5. Brother MFC-J4420DW opening procedure, Remove cover: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Brother MFC-J4420DW opening procedure, Remove cover: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Remove the screws connecting the black plastic cover to the printer (see image)

    • Remove the cover

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Matthias Loikasek

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