we have 3 mp8001 machines and we have strange problem that we have paper jam only on 1 side copy and no jam if we copy in duplex .
the jam we have is SP7504 12 on 1st tray , i changed the rollers all the gears A , b but still the same .
the jam we have is SP7504 12 on 1st tray , i changed the rollers all the gears A , b but still the same .