C6500 5mm Jump

[Calculated Design]

5 MM Jump

I wanted to run a month before posting my results. The machine has stopped jumping. The fix was in the PFU I replaced the black metal plate that the paper moves over. Alot of the paint had worn off and I believe that the sensor was picking up possibly stray light. That was the only component I replaced and we have run over 100,000 sheets through it. I am going to replace the black metal plate in the ADU also when I get some time.

[Setright]

The sudden 5mm shift is because the auto correction "gives up" when the paper is more than 5mm offset. So, if the LCT isn't aligned to the machine, and the guides aren't symetrical, and the paper is a little bit out of square or width, you can easily see the paper entering with too large an offset.

Maybe 99 pages are just 4mm offset and the auto correction cleans up, but the 100th page is 5mm off and the image seems to "jump"..

[dljorg]

Re: C6500 5mm Jump

All you have to do to get the side guide to jump is have a tray nearly full of paper and shut it firmly. Happens regularly and definitely causes the 5mm jump.

Turn the centering sensors off as described above then run the tray centering adjustment test pattern to see if the guides are out of place.