Sharp MX-5071S Fin_Err

[westoneking]

Hello everyone, I have a Sharp MX-5071S with a FN29 finisher getting intermittent/ returning problem of Fin_ERR in the jam logs. Reseated the finisher plug and that seemed to fix it for about a week. Then it happened again, cleaned the finisher entrance sensor and that also seemed to make it work again for a couple more weeks no jamming. Now it's back. Any ideas?

[boutn]

does the machine have a punchunit?

[westoneking]

does the machine have a punchunit?

It does not have a punch unit. Just replaced the finisher control board. I was mistaken. It's an fn28. The control board didn't fix it. I also replaced the entrance sensor. No dice

[sharphead]

does the machine have a punchunit?

Just out of interest how is the punch unit related? We had one throwing this jam code for a week, then it stopped and it had a punch unit

[westoneking]

School started back up and now I have replaced the Finisher control board, the machine control board, finisher entrance sensor, did a CN update, I'm not sure what else to even look at at this point.

[Hansen88]

I have never came across this code before. Everything I find about it says firmware. I know you did that already. Hope that fixes it.

[tedtech]

I've seen this before....Theres a sensor at the entrance to the finisher that gets coated in dust. Clean that thing off and see if that fixes the problem

[harps05]

I've seen this before....Theres a sensor at the entrance to the finisher that gets coated in dust. Clean that thing off and see if that fixes the problem

110% in agreement here with Ted. Have had the same problem and the same frustation. The solution was very simple in the end.

[Mittle Lix]

Agreed on the finisher entrance sensor, everytime i've had this code, cleaning the finisher entrance sensor has fixed the problem.

[odinp]

This finisher inlet sensor is also my bet, the inlet plate above the sensor is also very flimsy and easily bent, Ive had that cause finisher jams too,