How do I clear the memory on my Brother MFC-J435W Printer?

SOURCE: fax memory

http://welcome.solutions.brother.com/BSC/public/us/us_ot/en/faq/faq/000000/000100/000095/faq000195_006.html?reg=us&c=mx&lang=es&prod=mfc420cn_us&Cat=11&ot=us_ot

SOURCE: Cleared printer jam, message Unable to print 30

...and 50? Is it toggling between those two error codes?

Anyway, see here what to do:
http://www.fixya.com/support/t211210-brother_mfc845cw

SOURCE: Fax says "Out of Memory"

Unplug Fax machine for a minute or two. Plug back in and try again.

Hope this helps!

SOURCE: "brother mfc 7840w printer goes offline and i cannot print need turn printer on and off.

The solution, and it took me a long time to find the simple solution, is to right click on your printer, click properties, click the ports tab and click on your Brother printer and click on configure port (or you can delete the existing one and then add another one). What you want to do is update the IP Address. The problem is that the printer does not have a static IP address, it is dynamic. If you want to confirm that, go to your printer and press the reports button and print out the network configuration report. Your IP address will show on that. It's really the last digit in the IP address that changes. This will absolutely solve your problem. Good Luck!