Ink cartidges are all installed and registering ok. New balck ink installed but will only print in colour and not black print what can I do as I need docs printed urgently?

Something may have gotten stuck in the blue ink and clogged it. If the cartridge is new you may be able to send it back and get it replaced, If not you may just be out of blue ink.

It appears that one can purchase the black cartridge separately from the colour cartridges. But your Brother machine is designed to stop ALL printing operations when any of the ink cartridges are empty. In that case you would need to replace all ink cartridges that are empty in order to resume printing.

it happen when the black ink is low or ink outlet get block;just replace your black cartidge it will sove your problem;]
let me know if it's helpful to you

Method 1:Remove your colour cartridge wen you require only balck ink[The blue lines are often signs of empty cartridge]
Method 2: while printing select 'Use Black Ink Only'

hi,

Check your black ink cartidge. it may be empty.change it with new balck cartridge

this problem may also be due to cartidge holder .
clean cartrideg holder with moist cotton with petrol or some other cleaning liquid as nail polish remover. clean properly the cartirdge socket and mainly the contact point of cartridge socket

it is better to change the black cartige becaue there is the jam of the ink in black cartidge. or pick out the black cartidge and clean with soft paper in the place from where color is pour. then reinstall the cartidge. i hope it will ok. otherwise, change the cartidge.
byee

No.Not according the HP.

u check ur head is working properly i think this main error of head where u insert balck vartrige if u have same printer then u have check replace the black cartrige find out it work properly then sure ur balck head is damage

The MP600 does not use the 40 or 41 cartridges, it uses individual color (and black) ink tanks. But other models (MP190, MP460, MP470, etc) do use these cartridges. The error message you are receiving indicates that the printer does not recognize the cartridge you installed as a valid black ink cartridge. This can mean that either the cartridge is faulty, or that the printer has a problem.
I would suggest trying another new cartridge, and if you still get the same error, to contact Canon for support options if the unit is still in warranty.

My printer always said the same thing. Unfortunately it seems to only work in black when the colours are full.
Cheryl.