AF3030 Bad creasing of copy

[NeoMatrix]

Can any body give any pointers on bad creasing of the copy on an AF3030.
I have looked everywhere upside down back the front. Facing the copier, about every 5 copies or so, the copy/print will dog-ear on the far end of the page A4 (LEF). It does not do it on A3; well very very few copies to say the least.

1. I believe for now the copy is skewed coming into the fuser, I know that is causing the sympton of creasing fault. What is causing the dog-ear and skew is my concern. I've check every where for the obvious. Paper guides, paper jambs, switch back guides in duplexer(double siding) etc.... I can't catch the fault by stopping the copier (on/off)

2. Does not happen on A4R (SEF)
3. Happens very rare on A3.
4. Have placed a newly open reem of paper(moisture concerns) into the tray.
5. Creasing/dog-ear happens from any tray/port if you move the A4 tray.

I have put the Drum pawls back on twice now . The last time the creasing was still occuring.
I have adjusted the inner an out fuser lamp temperatures to band-aid the creasing. Works for now.

While we are at it : (not related to creasing/dog-ears)
The same machine has a lift motor error sc503 ? Never replaced a lift motor before(others techs have), any thing obvious I should know about first ? I expect it's straight forward.

[zed255]

Check for a heavy ridge of toner on the fuser input guides. I had one doing something similar and that's all it was (aside from the fact it was past PM time, so it got the royal treatment).

[NeoMatrix]

Yer righto Zed , I will take notice of you info next time I go there.
thanks....
GDM

[bastille67]

Zed is right, check the guides. As far as the lift, that model has a spring attached to an arm that pulls it to lift the tray, more than likely the spring end is broken off. If you don't have a spring, just bend the end to make a loop that will go where the original loop was, that should hold till you can change the spring or you can stretch it slightly to make the same tension it had and it should last till it breaks again.

[salmandol]

I agree toner build up the guides sounds like your current problem. But for future reference creasing can also be caused by bad pr roller, broken lower frame where the upp bearings are, sometimes the lower roller slips out place. As for the paper tray i have changed many lift motors, sometimes a couple teeth from gears inside break.

[aabarnes1]

All good info, also check the guides in the cassette, I've seen them loose once or twice causing creasing- but your number 1 is hard toner buid up on the fuser entrance guide likr zed said.

[TonerMunkeh]

Dirty reg roller or failing reg clutch can also cause skew and creasing.

[NeoMatrix]

RE : P/Roller jumps out. Yes this machine has done that twice but we have fit a new (as-per-mod) lower fuser case. But I just might check that again next time just to make sure that something is not amiss.

Re :Reg roller, all clean and clear.

GDM