Strange jam problem with Advance C5235

[campy]

I have a customer that developed this problem out of nowhere. He's telling me when he prints it's showing that it jammed but there's no paper in the copier. When I check the jam history it's showing a jam in the document feeder at S14 sensor. If he opens and closes the right door it prints everything out with no problem. I reinstalled the system software but it's still does it. He just called me and told me it has been fine all day until the end of the day it did about 5 times. It does it out of both tray 1 and 2 so it's not a feed problem. Copying it doesn't seem to be a problem but most things are printed. Any ideas?

[GIUBOSS]

You are sure that all of the drawer feed rubber rollers are in good condition and that there is no paper piled up behind them. Check and clean the paper sensors as well.

[campy]

You are sure that all of the drawer feed rubber rollers are in good condition and that there is no paper piled up behind them. Check and clean the paper sensors as well.

Yes they are good.

[zoraldinho]

Replace sensor showing in jam history.

[campy]

Replace sensor showing in jam history.

It's showing a jam in adf at sensor S14. It happens when printing not copying.

[zoraldinho]

Are you saying there are no jams in the jam history?

[campy]

Are you saying there are no jams in the jam history?

As stated above it's showing jam in adf.

[Venom]

Look at Alarm codes and Error codes. Often these will show what triggered jam message.