Copystar CS307ci image quality

[deputydogg]

It has random black streaks lead edge to trail edge when printing or copying. I replaced the drum with no change. Machine has 29K color & 17K B/W.
It never does it with cyan,magenta, or yellow however it does leave black streaks when printing in color. Would the black developer be the next step ? What is the yield for drum/developer ?
Thanks,
Dave

[Phil B.]

It has random black streaks lead edge to trail edge when printing or copying. I replaced the drum with no change. Machine has 29K color & 17K B/W.
It never does it with cyan,magenta, or yellow however it does leave black streaks when printing in color. Would the black developer be the next step ? What is the yield for drum/developer ?
Thanks,
Dave

i would start with the belt cleaner ,, could be paper dust messing with the blade

how dirty is the insides?

[deputydogg]

i would start with the belt cleaner ,, could be paper dust messing with the blade

how dirty is the insides?

OK. Not very dirty.
Thanks

[Ropariva]

We have had a number of this series fail with transfer belts dropping toner like this. Remove the belt and tip it on its side and likely it will drop a whole heap of toner out. We have been given no solution apart from replace the belt under warranty. Cleaning the belt out will only give you a very short lived fix.