Bizhub PRO 950

[Toxic]

Hi,
I have one 950 on the field,lastnight it works normaly,shutdowned,this morning it shows error C-8407 at first starting and remain that error after several tryes.
I cant find anything about this error,service manual or google, it is strange to machine show error which does not exist in service manual,it never happened to me before.
Somebody have some ideas?

[Service@PRT]

Re: Bizhub PRO 950

that error is for higher model like 1000+ series this one is ps312

C-8407

Original skew sensor /Fr (PS312) abnormality. 18-4

tho its the same c-8406 on 950 this one is ps313

C-8406
Description

Original reverse/exit sensor (PS313) abnormality.
Causes

Confirming the sensor operation Confirmation of the wiring harness and the connector Original reverse/exit sensor (PS313) DF control board (DFCB)

[Toxic]

Re: Bizhub PRO 950

Yes,you are right.

C-8407 Original skew sensor /Fr (PS312)
abnormality.
Confirming the sensor operation
Confirmation of the wiring
harness and the connector
Cleaning of the sensor's mirror
Original skew sensor /Fr (PS312)
DF control board (DFCB)

I found that info in revised service manual after somesearch ,they add description for this error.
I just removed sensor,reconnect, clean reflection mirror and sensor, no more error.

Thank you anyway