Yellow color does not print

"I would start by making sure the driver is current. In addition many of the color printers offer a diagnostic function and tools to verify the tank levels via the printer driver. Have you tried using the built-in tools?

Check the tank make sure it has inkClean the Yellow printheadRun the printer test & alignment program

Also what is the OS your system is running and are you accessing it directly or via a print server."

@danj and Keith Davis - I, too, am having this trouble. I have a Brother MFC-J5830DW and somehow my yellow has tank slot has become contaminated with blue ink (presumable because yellow is now green). I’ve done everything prescribed above (clean print head, Q-tip the as much contaminated blue ink as possible, changed the yellow ink tank) and still teal like green print from the yellow head. I’ve begun to clean only the yellow ‘clean head’ option in the printer and have now ‘copied’ as bright canary yellow sheet of paper on photo quality several time. Even though the out put is no longer blue - it’s light green yellowish, I feel like I’m going to have a contaminated yellow for sometime.

I’ll see if the blue is leaching over to the yellow somehow. Can’t remember if drivers were reinstalled where a bug might be firing the blue at the same time as yellow. Doubt that. Sure wish Brother would address this/