Canon ir 2870 Feeding Problem

[maddy4u]

Hi

I recently Purchased canon ir2870. since purchase i Facing problem of feeding system. Paper Feed (Both Tray) Pick 2-3 paper at a time.
remedy tried
1. Change All pickup rubber (no Success)
2. Change Solenoid of Pickup unit (no Success)
3. Change Pickup unit from my Ir 3035 which is working fine on my machine (3035) but no success

paper from stack by pass is properly feeding. if any remedy remains please let me know

thanks