This one was really interesting. Here is the picture.
Z-folds eS855SE.JPG
It's an eStudio 855 with nearly 2M prints. Once I got tray #3 LCF to pick up, the first page always Z-folded. The really interesting part was the second page that fed through simultaneously, and caught the remaining image, again every time.
The registration flag was really worn. What I think was happening, was the first page at the reg roller didn't trip the reg switch, and the vertical path rollers shoved the paper as far as it could, making the overlap for the Z-fold. When the next page arrived, the two pages together did trip the switch, and it fed both through together, crimping the Z-fold, and traveling out to the finisher. Only then did it pull a E020 paper jam.
I got pretty good at removing the lower registration assembly. =^..^=
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