Thanx Posted by kubusu on May 07, You can try soaking the print heads for 24 hours or more , as follows. If none of the above works, then you may have blocked magenta print head nozzles. By the way, are you using compats or epson original ink carts? Try up to three cleaning cycles. The printer prints “red” by mixing magenta and yellow ink.

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Now the black section of pprinter print head doesn’t work I have uninstalled and reinstalled and it keeps saying check connection, even although it is printing okay.

Brother MFCCW – ComputerFood

You can’t post answers that contain an email address. Sometimes it is possible that the head is not reacting to the need of the PC command or can be an issue with ink drying or poor ink cartridge contacts.

Related Question My epson DX won’t print yellow at all, green prints as blue, red prints pink on certain documents i’ve created. Hi there, Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.


Repeat the process until you get a full magenta nozzle check. If you get any magenta ink on the nozzle check, then there is hope! I was using Maybe Print Head faulty.

MFC-640 CW

More Print this page Mf6c40 this page. Your answer needs to include more details to help people. Did you use third party carts? I have printed an email off today which printed all the colours perfectly?? Sometimes the power supply unit must be checked as a poor SMPS unit can deliver low voltage and cause issues to the printer function.

Brother MFCCW Support

If none of the above works, then you may have blocked magenta print head nozzles. In most cases the printer driver software can have errors while being in use or is shut down. Found in closet at my in-laws house. I’m afraid there is no real sucessful way of cleaning these print heads, tiny micro filters built into the head unit will blocked. For BK mix 2ml glycerol with 20ml of BK dye ink! Is there any sign of magenta ink on the paper.

To eliminate the possibility of a faulty cartridge, buy a new set of compatibles on E-Bay – they’re very cheap. Do this gently and carefully avoiding further damages to your printer and it’s cartridges.


When finished press 7 then nfc640 then 3 then start bk copy. You can’t post conmments that contain an email address.

Click “Add” to insert your video. Don’t print or anything else after the head cleans until the morning then do one more head clean this soaks the print head in ink overnight and then the final head clean should clear any obstruction.

If the printer still refuses to print in colour, you could try replacing the cartridges anyway as they can be faulty. Machine runs an exrta power cleaning. The printer prints “red” by mixing magenta and yellow ink.

ink cartridges BROTHER MFC 640

A replacement might costs more than a new mfc cn! Ask a Question Usually answered in minutes! Probably hasn’t been used in a few years. Lately during the filling cycle water hammer is occurring.

Shake very well and wait a few minutes to let the airbubbles out of the mixture before refilling! All You should run a few cleanings. Instant Mfc40 Help over the Phone 6ya.