850 yellow prints green

[NCC1701A]

Have a customer with several Phaser 850s, but one prints with green hued yellow. They have tried purging the yellow and it does okay for awhile but then starts printing with greenish hue again. They are using Xerox ink. Anyone have any ideas?

 

[XeroxTech]

if they do not use yellow enough it will keep changing. Have them print a solid fill page in the morning and at night every day. That should keep the colorshift to a minimun.

 

[kcoates55]

I've had the same problem with mine. Purging doesn't help. I read on one site a while back that Xerox replaced a printer for someone -- but still under warranty. I waited too late.