Brother printer won't print

The error code 50 indicates a paper jam condition. Whether there's actually still paper jammed or not, it's sensors are still indicating a jam. Check again for a bit of paper, or there may be a faulty sensor.
Check out this link: Brother for further information.

try reseating the magenta ink cartridge or replacing it.

Press the Stop Button to cancel whatever you are doing on it. Then press Copy to be able to copy.
If you are printing to it from a computer it should just automatically get to printing when it is sent information.

It sounds like the power supply on the machine has blown sorry to give you the bad news

You must replace the "Drum unit" because it may be with the cylinder very worn.

In January 2011 Brother update its drivers for your printer due to a compatibility problem. You haven't advised what operating system you're using but you apparently need to update your drivers.

If you are running Windows 7, you will have to update the drivers either from Microsoft Update or Brother. Click on this link for Brother.

If you are running Windows XP, CLICK HERE

The printer ribbon contact may be at fault. With the price of printers so low it makes no sense to repair it, just replace it. The last printer i needed was free after rebate, just the sales tax of $5 is all it cost me at a big box electronics store.

I have the same problem. Everything on the printer is working just fine. It'll do a test page just fine, so everything's working right. The %$^ thing just won't print. It makes noise like it's printing when you give it a print job, but it spits out blank pages.

You need to call Brother at 1-877-brother and tell them your mfc is "missing black". They will tell you where to take it to get the print head replaced under Brothers' warranty. This is a VERY common problem and Brother will cover the cost to repair it.

here's a solution i came across when dealing with the same problem. apparently the printer expects all of the cartridges to be full and has a sensor to make sure they are even when only printing black. hope this helps!

http://journal.drfaulken.com/trick-your-brother-inkjet-into-working-when-an-ink-cartridge-runs-dry/