crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0

crwdns2944351:0crwdnd2944351:0Brother MFC-J4420DW opening procedurecrwdnd2944351:0crwdne2944351:0

crwdns2933797:0Maria Parkercrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Maria Parker

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Brother MFC-J4420DW
Type
replacement
Thing
Capacitor
Title
Brother MFC-J4420DW Capacitor Replacement
Introduction
I recently encountered the problem, that my Brother printer would not start or react at all when pressing the power button. Disconnecting the power cord, waiting for some seconds and reconnecting resulted in the startup of the printer, but it would immediately shut down with the message that all "All functions will be disabled". In the comments of a Youtube video I found a workaround (https://www.youtube.com/watch?v=Gi7cl588J8Q) namely to remove the paper tray before reconnecting the power cord and reinserting it not until the printer asks for it. That workaround did work for, but that was not a permanent nor a convenient solution.
Since the warranty of the printer was not expired, Brother sent me a technician who replaced a capacitor. After two or three restarts of the printer, on which the printer still misbehaved, the printer started working normally again.
As with all guides, you do that at your own risk. You should know how to solder and be at experienced in disassembling and reassembling things.
Time Required Min
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Time Required Max
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Imageid
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Difficulty
Difficult
Author
Matthias Loikasek
Public
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  • FixHub Power Series Smart Soldering Iron x1 added.
  • Wire Cutters/Side Cutters x1 added.
  • Philips Screw Driver x1 added.

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  • capacitor 5.5V 0.22F x1 added.

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  • Community-Contributed Guide added.

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