I cannot tell which colour of ink is finished

YOU SHOULD USE HP 21 BLACK INK CARTRIDGE FOR BLACK PRINTING.IF YOU USE 22 COLOUR CARTRIDGE YOU WILL GET ONLY GREAY PRINTING ONLY.I AM RIGHT?IF YOU USE COLOUR CARTRIDGES MAY YOU WILL GET MONEY LOSE. BECOS IT WILL FINISH EARLY.BLACK INK COST IS LESSTHAN COLOUR INK CARTRIDGES. SO YOU SHOULD BUY BLACK CARTRIDGE FOR REAL BLACK PRINTING.

SIR,
your colour catridge ink has finished.you have to replace colour catridge with the same M.Number.

When you print in color is does it show black ink?

You can't

hai there...you try press the reset and colour button in the same time...the printer will back to normallyl

Your black ink has finished, try and get a new black ink catridge, remove the black ink to get the no on the catridge. good luck

Click the "Advanced" tab while in the "Printing Preferences" window. Choose the "Print in Grayscale" option to print in only black and gray to save on your color ink.

hello, I hav Epson Stylus Dx4050, there is black ink,but the colours finished and it stopped printing, so please if you could tell me if the 4 colours must be there to print or what can I do?
Thanks very much

just take out the colour cartridge from the printer, then you will be able to print.

Unfortunately, like most multi cartridge ink jet printers when one ink is empty the printer will cease printing regardless of whether you just want to print in black and white and you have plenty of black ink left. I have heard of people tricking the printer into believing the cartridge is full by placing coloured tape etc in front of the ink sensing device but I am not sure how the Brother senses the ink levels as i have some aftermarket ink cartridges for mine which seem to be completely non-opaque (unlike the originals). The need to have colour cartridges in even if you only ever print with black ink is good news for Brother as the MFC-210c uses a large amount of ink during it's routine cleaning cycles (that you cant stop) and will empty all 3 cartridges in under 6 months without ever printer a single drop of colour ink. Sorry about all the bad news, at least your not alone......