I have just upgraded my Brother multifunction printer to 512MB of memory. Before that, I tried to print complex documents with graphics on the printer, and indeed I received a message about the lack of memory. I believe this memory upgrade should fix any issues I've had in the past and since it's such a cheap upgrade it's definitely worth it for an older printer. The upgrade was very easy, there is a panel on the left side of my printer where you can just remove it and that memory slot is there.
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