Bizhub 200, 250, 300 Poor Fill

[JR2ALTA]

This problem has plagued us for a while. Thought we had the fix when we realized to vacuum out the sub-hopper (paddle and reed switch between toner and dev unit). But a few machines still have the problem.

After the initial toner mix in the new developer wears out (1000-2500 copies) we get faded copies.

Toner bottle is turning, changed dev, dev unit, drum, tran roller.

Any thoughts?

Thanks in advance!

[Hansoon]

Copper colored door contacts sitting properly? Is the slit glass clean? You have bad fill on the drum too when you crash stop the machine?

Hans

[EarthKmTech]

are you using genuine toner ?