CF5001: yellow background

[21043]

Hello!

there is a yellow background on my CF5001, yellow toner not "dusting" inside copier, drums and belt are clean, but transfer roller covered by yellow toner after 2-3 prints. i trying to reset calibration, change drum, belt unit - no effect. if i installing new dev. unit from another Cf5001, it prints good, but after 10-20 prints yellow background appears again.

[fixthecopier]

Is there a difference between sending print jobs or making copies at the machine? I have seen new vista systems trying to print with XP drivers cause similar problems.

[21043]

hello!

no difference, printing from Win2000 and WinXP and from own menus of CF5001 (service mode).

[minimerlin]

Hello!

there is a yellow background on my CF5001, yellow toner not "dusting" inside copier, drums and belt are clean, but transfer roller covered by yellow toner after 2-3 prints. i trying to reset calibration, change drum, belt unit - no effect. if i installing new dev. unit from another Cf5001, it prints good, but after 10-20 prints yellow background appears again.
Are you using genuine toner?
When you tried a different yellow dev unit what happened when this tank was put back into the machine you took it from? Did it work ok then?
My thoughts are wrong toner maybe!