hi everybody
i have a jam of code 0205
it is only appears in the third or fourth paper of a duplex job
the paper stops in the duplex pass and the machine continue rotating for about two minetes
after that the jam happened
i tried to upgrade the firmware from 7 to 77 version with no advance
###if i use A4R no problem#####
i checked the pre registration sensor and it is ok
anyone can help please
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