Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
If you scanned hundreds of pages, then they could not all be in memory still - that is not possible with a Brother machine of this model.
However, it may be that the scanning of hundreds of pages *at once*, all in one job or practically, might have overtaxed and overheated the scanner hardware and electronics, enough to damage it.
Can you still run a photocopy from the machine? if so, and if it comes out, then the scanner hardware is OK. (The only part that is not used in a photocopy that is used in a scan to a computer, is the transmitting or interface electronics used to send the image data to the computer. And if you can print through that interface still, then that's not at fault either.)
When you try to run a photocopy, if it fails, is
A. the scanner bar (under the glass sheet) moving? (Photocopy a one-sheet original face-down on that glass sheet, in order to tell.)
B. the scanner bar lighting up?
C. neither one is
OK. Has it been set up to be working to that particular computer that you now wish it to be scanning to, before this?
Or is this a new setup that has not been gotten working yet?
I suspect that it needs to have the right parameters entered on the printer side, and perhaps a little adjustment or a lot on the computer side. So I should ask, is the computer a Windows PC, or an Apple computer?
Is the Mac Book Pro connected to the Brother machine, with a USB cable? or some other way?
Thanks for the information. ...Can you still print?
Then the comm facility through the hardware of the interface and the USB cable are still working.
And that you can fax (if that means you can Send a fax) means that you can still use the scanner hardware.
How recently have you
1. sent a fax out, successfully
2. printed a document from the computer ?
Good. So scanning hardware works, then. (Did you verify that the scan did not come out, or the fax from it come out, blank at the other end?)
Then the last question is, if the whole of the printer is doing so well - printing fine, scanning fine and faxing OK and a good image from that fax sending... then why can't it Copy?
Try the Photocopying function, please.
And tell me about the computer you are trying to Scan to - is it a Windows PC, or an Apple? and what version of the Windows or MAC OS X does it have on it?
OK, good, it copies and scans a fax to send.
I think it's clear enough, that if only the Scan function, to your MacBook, doesn't work at present, then it ought to be solvable by a replacement of the drivers / scanning drivers (since the printing drivers obviously work.)
But first, have you tried a reset of the printing system? that might also reset the scanner function, possibly? I advise trying it. (If you need instructions, let me know, please.)