I have this FS-C5400DN exhibiting some unusual behavior. First of all, Command Center is completely gone. I can ping, connect to machine via KMnet Admin and KMnet Viewer, and print over the network. I looked through all of the menus to find where I could enable HTTP, but was unsuccessful. I updated firmware to latest level on KMAconnect to no avail. Ok, here's the second issue. Most internally generated prints come out as magenta monochrome. I didn't try every single one, but the only one I tried that came out normally was the Color Registration page. External print jobs are coming out cyan monochrome (no halftones). I had one job that was cyan monochrome with some magenta monochrome text and a couple of boxes (print job was a full-color test chart). I'm leaning toward main board as opposed to a mechanical problem (dev or drum) because of the fact that the output seems to overwrite all colors with a single color as opposed to just producing one color normally and simply omitting the other colors. Anyone seen either one of these issues?

I haven't seen this problem but agree with your logic.

If this machine had a separate NIC I would try that first, but I'm fairly sure that it's built into the main PWB.

Yeah, it's built in. Thanks for the response, though.

An update:

Did some more testing. Internal "Test Print" comes out normal (all 4 colors are printed correctly). Black and white mode produces the correct output. Tried several different firmware levels with no success. I don't really care if anyone has a fix as I'm sure a new main board is probably the only fix. I just wanted to know if anyone else has ever ran into this particular color quality issue. Anyone?