[Misc] km 8030 df 650 and 3000 sheet finisher for 9500 series

[n25an]

Massive print runs
300 to 1000 sheets... 100 sets...

problem
copies come out offset...
but every once in a while...
the copies come out a bit skewed from the finisher...

there will be one or two in a set that either come out curled
or are spit out too far...

I am thinking the exit rollers in the finisher are worn...

but I am open to any suggestions...

[blackcat4866]

You'll want to take a look at the duplex switchback roller (302FB19401). When it wears the roller wears conical.

When it's new it's 66mm circumference. As it wears, the rear wears faster than the front. When the difference in circumference becomes 1.3mm (65.3mm at front, 64mm at rear) the paper skews so badly that when inverting for exit or duplex, the rear edge flips, causing J60, J62, J63 jams. When stapling, the flipped corner prevents the paper from setting in the stapling tray properly. =^..^=

[n25an]

I will check on it...