Brother Mfc 7820N Disassembly Repair Guide

Difficulty

Moderate

Steps

Time Required

                          30 - 50 minutes

Sections

Brother MFC-7820N Disassembly
6 steps

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Introduction

What you need

Step 1

              Remove Paper feed, screw, front and back cover

Remove the Power- and USB-Cable!
Remove the paper tray that contains the paper completely.
Open the front cover and remove the screw on the left side.
Turn around the printer and open the back cover.

Remove the Power- and USB-Cable!

Remove the paper tray that contains the paper completely.

Open the front cover and remove the screw on the left side.

Turn around the printer and open the back cover.

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Step 2

              Hang out the back cover and remove screw

Hang out the back cover: After opening it, you can start to hang it out. Press from the left parts ro the right and move it towards yourself.
Please remove the Screw on the right side, as shown in the image. If you want to remove the Automated Document Feed (ADF) you might now remove this screw as well.

Hang out the back cover: After opening it, you can start to hang it out. Press from the left parts ro the right and move it towards yourself.

Please remove the Screw on the right side, as shown in the image. If you want to remove the Automated Document Feed (ADF) you might now remove this screw as well.

Step 3

              Open the side cover I

To remove the cover from the side where the internal cables are pluged in and the motherboard is located, follow these steps:
Raise the upper cover (not the automated document feed). I mean the cover benath the scanner glas.
Now turn the side to you, where you’ve already removed the screws from.
The side cover is held by some Hooks, so it can be a bit tricky. Start from the right ro remove the cover. Lift up the darker grey plastic parts slightly.

To remove the cover from the side where the internal cables are pluged in and the motherboard is located, follow these steps:

Raise the upper cover (not the automated document feed). I mean the cover benath the scanner glas.

Now turn the side to you, where you’ve already removed the screws from.

The side cover is held by some Hooks, so it can be a bit tricky. Start from the right ro remove the cover. Lift up the darker grey plastic parts slightly.

Step 4

              Open the side cover II

After you fully removed the cover, you’ll have a view on the motherboard, the cable and the plugs.

After you fully removed the cover, you’ll have a view on the motherboard, the cable and the plugs.

Step 5

              Remove Automated Document Feed I

To change or remove the ADF-Scanner-Unit, you’ll have to remove the cables I’ve marked in the first picture.
On the back side remove the screw at the right ADF-hinge.
Pull out the cable carefully.

To change or remove the ADF-Scanner-Unit, you’ll have to remove the cables I’ve marked in the first picture.

On the back side remove the screw at the right ADF-hinge.

Pull out the cable carefully.

Step 6

              Remove Automated Document Feed II

Open the scanner glas area and be carefull that the ADF falls not down on the left side. It could break the hinge on the other side.
Now remove the screw on the inner side of the right hinge. Please take care to use a screwdriver with the correct screwsize. Here it could be tricky otherwise.
Now you can remove or change the ADF.

Open the scanner glas area and be carefull that the ADF falls not down on the left side. It could break the hinge on the other side.

Now remove the screw on the inner side of the right hinge. Please take care to use a screwdriver with the correct screwsize. Here it could be tricky otherwise.

Now you can remove or change the ADF.

To reassemble your device, follow these instructions in reverse order.

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                                                                                      3 other people completed this guide.

Author

                                      with 1 other contributor

                    Valentin

Member since: 06/09/2015

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Styg - Jan 24, 2016

I used this guide to open up the printer and replace the network interface card. Just do everything up to Step 4, then

unscrew the two screws on the back that secure the parallel printer port
unplug all cables (take some pictures first, so you remember where each cable goes)
unscrew the four (or in my case, five) screws that secure the card in place
the card can then be carefully worked free

Suggestions for Step 3:

Use a plastic spudger to work the top of the side cover free
Take care with the plastic tab on the lower right (front of machine) so that you don’t break it when pulling off the cover

Howard fu - Aug 2, 2020

Hey mate! Do you know how to remove left cover for Mfc-7362n?

Member-Contributed Guide#

Introduction#

What you need#

Member-Contributed Guide

Introduction

What you need