My brother dcp-375cw all in one printer is not printing black

SOURCE: I have a brother DCP-165C and it is not printing black.

Hi,

The nozzle may be blocked. So take out the colour cartridge and place its nozzle in a bit of water for about 10 mins. Bring it out and dab the nozzle with folded paper. If the tissue is blotted with the three colour it means you have unblocked the nozzle. Try now to print after returning the colour cartridge. You may need to repeat to get good results.

Thank you!!

SOURCE: brother dcp 115c : print head clogged (Red & Black not printing).

read the whole (!!!) post here:

http://www.fixya.com/support/t224245-missing_dot_in_all_colors

Its the same issue.

SOURCE: Brother DCP-165C Printer not printing black

dear sir,

1- replace cartridge
2- HVPS replace
your problem would be solved.

SOURCE: my Brother DCP-150C cant print, displays, UNABLE TO CLEAN"

Unable to clean either means there's a paper scrap in the clean station, or the ink overflow box is full and needs to be changed by a dealer. Sorry, no quick fix...

SOURCE: DCP 135C won't print in black

This is a generic problem for many printers. Some printers print black by 4 catridges. Try this, or it will be better that you call service support.