I'm not exactly sure what your problem is, but it is probably one of the following:CLOGGED PRINT HEADI usually remove the print head (I believe on your device this requires taking the printer apart and removing the carriage) and soak it in rubbing alcohol. I then use Qtips with rubbing alcohol to clean all of the remaining ink-paths that exist in the printer. It's messy but usually cleans out a clogged head.CARTRIDGE ISN'T BEING VENTEDFirst off, make sure that the little piece of plastic covering the vent hole is completely removed. On some models there are multiple holes being covered and it's easy to only pull the cover off of the first one or two. In an extreme case, I've used a small drill bit to create my own vent hole that I knew for certain was open.MANUFACTURER LOCKOUTAccording to, there is an ink-level sensor on your device that might be malfunctioning or otherwise be in need of bypassing. Something to check.DATA CABLE NOT WORKINGEach print head has a data cable going to it and sometimes they break or get unplugged. If you're getting no black printing whatsoever and the problem is none of the above, take the device apart and verify all the connections.
Screen & Digital Supply brings you this informational video from Brother International. Instructions for replacing the printhead in the Brother GT-541 Direct to Garment DTG inkjet printer.
Unplug and replug any connectors that are related to this system - or just be thorough and replug every connector in the entire machine. Oxidation can build up between pins over time and this simple task can fix the problem in many cases. March 26, 2016I contacted Brother today for help with my MFC-240C, which I have owned for many years.
The printer does not print black properly, but it prints the other 3 colors well. They led me through the normal cleaning steps (which I had already done), concluded that my after-market ink supply was probably the problem, and sent me on my way. 4 minutes later a nice Brother representative called me and offered a replacement printer, more modern than my old 240C! Those Brother people really take their reliability issues to heart!Try it! I bet they have some more replacement printers! MFC-795cw: not printing black.Did not have the same out come with the brothers customer service.
After going through all the trouble shooting stuff and using all my ink on a cleaning in maintenance mode. He said he would email me a repair shop so I could get an estimate. No replacement/repairs free of charge for me. Said the repairs may cost as much as the original purchase price. Time to look for a new printer. Wasted $40 in ink just so i can be told I'll waste another 60-100 in repairs. I had bought a spare MFC 495 cw because it was on sale and thought I would use it when my old printer died well it sat for a couple years brand new never used and then I tried it and no black printing this is right of the box brand new.
I did multiple cleanings called support and explained what happened and basically no assistance other than wasting more ink with the tech support woman. In the end it still does not print black and no advice or help from brother to fix this. Last time I buy a brother, because they could care less I even offered to send it back and they could check that it was never used, but they cared less. They may have helped people in the past but that is long gone. My friend bought one like this and new out of the box it had an error basically the error was saying it was dead, and he ended up with nothing just like me.