Can't print red and purple

[CherylO-Xerox]

Hi fairfaxcityenvy,

Thank you for using the Support Forum. Please try removing the magenta /red cartridge and gently shaking it side to side 6 to 7 times then reinstall and try again.  If it still happens try a new cartridge.  If this does not help please consider contacting your support centre for further assistance.

[fairfaxcityenvy]

Hi, my printer says that all of my toner cartridges are full but it doesn't print red or purple. I replaced the toner cartridges, opened the door on the right and used the foam brush cleaner and pulled the tubes in and out and nothing is working. Any ideas?