MP 7500 with 50 sheet booklet finisher

[GC-SCO]

Hi Folks I was wondereing if anyone has come accross this problem. I currently have aproblem where the machine jams very intermittantly showing a 131 finisher jam about 3 times in 8000 copies. Obviously this is a nightmare to fault find as its the old toothache dentist senario. On the one occasion I have seen this there is one sheet about 1 inch left in the finisher exit and one sheet just at the nip of the entrance rollers. Any help greatfully appreciated. This machine only has 400k on the clock.

[cobiray]

My first recommendation on any non mechanical issue is to update the firmware one the machine and the finisher. Make sure you update all the firmware and not just the system and copy sections. The jam code is for the shift roller area. Try cleaning the rollers, checking the guides and checking/swapping the sensor after that.

[RebelPhoenix]

Finisher Firmware

Hello dear,

This problem source is firmware. I have a same machine and finisher. My machine all times paper jam, paper jam. After I update the firmware after machine work is good and not paper jam.

So attach file is finisher firmware for this machine (Finisher SR970/980/4000 firmware 3.18 )

[GC-SCO]

cheers Guys. It turned out to be shift motor causing the problem. I had already done the firmware with no joy. fitted motor and no jams for over 20k. thanks for your info anyway.