Hi,
You must replace the imaging unit. Yours have a problem with Magenta dveloper housing (missing devloper material).
Gabi
Recently replaced the Magenta cartridge with a new Xerox cartridge and the printer will not print anything with red. Looks like it's feeding (I see red on the sponge at the end of the cartridge - also took the cartridge out and I was able to get some to spill out by gently pushing the plunger in). Need suggestions on what might be happening and how to fix it.