Paper jam at P

[Gesttech]

Hi,

Can somebody solve this problem for Gestetner MP 6000csp ARDF?

When the user doing serveral copy it block at P about 50 copy, the problem is intermitance. Because when the user doing continous copy it don't block. what i need to check? The photo interruptor AW 020156, Paper Sensor AW 010117 or Hp Sensor AW020141.

What cause this problem?

Thanks

[Fearless V K]

Dusty sensors or dust buildup in the aperatures opposite the sensors, or dirty/worn out feed rollers/belt.