C5045 lines on magenta dv unit

**mrfuser** · 03-19-2015

Happened suddenly. Any idea what causes these lines.?

image.jpg

**zoraldinho** · 03-20-2015

Any errors maybe?
-Developer counter?

-check distance between the rear side of machine and the wall: preferably 10cm or more.
-Upgrade Dcon to last version.
-Does the symptom solved by outputting 50 pages of solid magenta images?
-Check dust filters
-Gently shake developer assy.
-Replace developer.

**V-P** · 03-20-2015

I can replicate that issue if I hold the dev in my hand and rotate it manually BUT at a different angle.

Other than that I have never seen it happen on a machine.

Even if there is shortage of dev material in the toner - it would not cause stripes like that.

I would try to rotate manually at different angles and see what happens.

**Max** · 03-20-2015

If the dev unit is level then the copier lost some developer from the dev unit.I would say if you replace it with a new one and it only lasts a week or less then I would look at dev bias or perhaps dev unit drive mechanism ( rotating when its not supposed to) Had something similar on Ricoh and Konica. Ricoh had a stuck clutch and inconsistent dev bias on Konica.

**mrfuser** · 03-20-2015

Pulled dv unit again and rotated every angle with same result. Stripes won't go away. No errors showing and counter at 24%.
any other ideas?

Originally Posted by Max

If the dev unit is level then the copier lost some developer from the dev unit.I would say if you replace it with a new one and it only lasts a week or less then I would look at dev bias or perhaps dev unit drive mechanism ( rotating when its not supposed to) Had something similar on Ricoh and Konica. Ricoh had a stuck clutch and inconsistent dev bias on Konica.

**RAI** · 03-21-2015

I'm pretty sure in debri inside the unit. It can also be compacted toner in the way of the cleaning blade. Had one like this thought of opening it but it looked like a semi sealed unit. It's not wear on the unit, if it was you'd see a scratched mag roller.

**V-P** · 03-21-2015

Do the stripes move horizontally when you rotate manually or stay in the same place ?

**mrfuser** · 03-21-2015

Seem to stay same place

Originally Posted by V-P

Do the stripes move horizontally when you rotate manually or stay in the same place ?

**canonbundy** · 03-22-2015

Seen it before - is it OEM Toner - hard lumps in Dev Unit? Replace with correct Toner- run skyshots (to deplete Hopper of old Toner) then replace Dev Unit. Then run Dev as a new install then full Autograd.

**mrfuser** · 03-22-2015

Yes oem oem toner. I will try that. Why run sky shots of going to replace dv unit anyway?

Originally Posted by canonbundy

Seen it before - is it OEM Toner - hard lumps in Dev Unit? Replace with correct Toner- run skyshots (to deplete Hopper of old Toner) then replace Dev Unit. Then run Dev as a new install then full Autograd.