I have a Toshiba 2830c thats only prints red from the network. When in copy mode from glass or adf the red looks more gold or brown but not close to red. Even in mono colors red looks gold
Any text or image that is red comes out looking more like a gold brown. When printing from network the reds are nice and solid no problem.
All the calibrations charts the colors are nice and solid. Swapped out magenta and yellow devs and no change. Did some of 05 adj no change.
All firmware is current