I have a Change Unable 51 Error Message on my Brother MFC-260c MFC and it says to refer to User's Guide, how4ever there is no error code to match this in the guide. HELP!

https://www.easyink.co.nz/support/brother-mfc-665cw-unable-print-51-error-solved/

in my printer brother mfc-7340 when i coping with machine after some time display will show print unable with error code 72 what i will do? plse tell me;

Unplug the unit, wait a few minutes and then plug it back in. It should cycle through and start back up for you.

is Internal printer error need to go local repair store (46 is ink pad full) 51 maybe is a scanner problem, or fax board broken.

Unplug the printer from power cord.Press and hold the "menu" button, then plug the device.You'll see on the LCD screen a "machine error" code.If this code is 40,41,49 or 4F the print head is defective.If the error is 48 -defective print head cable or circuit board.If the error is 50 or 51 there is error in Purge unit and printer require service.If the error is 46 the waste ink tank is full.Follow this:
Enter 80, then scroll down with the arrow down (round) key. You'll find an entry listed as purge count. If number is over 6000, enter 2 7 8 3.This will reset the purge count value. Then restart the printer, hopefully without the annoying cannot clean message.

mfc-440cn unable to chang 51

Normal 0 Could have a corrupt driver.
Disconnect the printer or at least be sure it is turned off. I'd do both and when the CD software program asks you to connect the printer to the USB port, do so and it should again work properly.
Hope this helps. Bud

So what error message does the machine display except mentioned one?
"Unable to..." and a two digit error code will help us more to understand the malfunktion of the machine

error 51: problem with purge station or travel path way of printhead. You cant fix it by yourself.
If it is still in guarantee give it to a service dealer after calling brother hotline.

press menu then start mono (b/w) then 4x arrow-up-button. What error code does the machine display?