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I did go visit the customer today. It did some of the corner folding but did more of stalling or partial crash. You could hear the paper struggle then come out wavy with some corner folding.

Lead edge corners with no image in area. Has stand alone finisher. Seems to be happening between fuser and exit to bridge (between exit and finisher). thx

I did search the forum and saw no specific fix or tech pub. It does this with single sided copies and with both 8.5 x 11 and 11 x 17. Of course they are using the cheap Costco paper. Thank you...

I believe it is the most current version. FM1-A719-000 Separation pad unit?

Thank you Roho. The pad and rollers where replaced when I delivered the copier two weeks ago.

DADF-AG1 is the document feeder. The machine only has 140k on it. The sep pad assembly, feed and pickup roller have been replaced. Is anyone aware of a Tech Pub on this issue or a work around? ...

Hello. Did you ever discover the cause of this problem. I have a customer with a similar problem. thx

It looks like the hard drive fixed the issue. I will update if the problem comes back. thx again

The customer says the machine will work after powering off then on. I will be replacing the hard drive later today. I am concerned that there could be some other cause for this problem. Thank you...

Thank you for the thorough explanation of how this system works. Looks like the copier is doing everything it is supposed to except (intermittantly) not mechanically transmitting drive to the...

Thank you for the response Teckat. I have a difficult time understanding how the problem could be anything other that mechanical. The machine is driving the add toner motor like it should be, but...

The toner bottle is not turning when it's drive motor is on. You can move the bottle a little bit and then it will turn. Based on the aforementioned is definitely seems mechanical. I have seen the...

Thank you for all the responses. I did replace the pickup unit again and am waiting to see if the customer has the same jamming problem. I am out of town right now but when I get back I plan on...

The problem only happens in the #1 bay. I hope that I had two used assemblies that had the same problem and that the problem is in the assembly. I replaced the paper pickup assembly again this...

After looking at another 4570 in my shop I find it hard to imagine the cassette feed motor being able to cause this problem. I wonder if the one way on the feed roller shaft or some other gear in...

I swapped out the cassette feed assembly with another used one but the problem happened again. Anyone seen this? Thx

Thank you for all the helpful responses. I ran out of time and was able to take the whole 2nd,3rd delivery assembly from a parts machine and swap assemblies to fix this problem. I will have to...

Thank you for the reply but the noise I am trying to describe is the paper crashing into a surface. The real problem is the paper not being routed correctly during two sided copying. The paper does...

The copy is not being routed correctly to the top of the S-1 finisher for inversion and crashes and curls up on itself without jamming, between the finisher and the delivery assembly. Again the...

Thank you for all the responses.

When using scanning glass I get intermittent thin black lines(in paper feed direction) in varying lengths at different places on the copy. It looks just like a spec was on the scanning glass...

Thanks Brian.

Does anybody have experience with these fixing films? good or bad Thanks

I am looking for the service,accessories and parts manual for the IRC4080. Thanks

Thank you Rachid. I am looking for current sst and system software. I plan on trying that out first.