KM 100 pro black jam issue

[slimbh]

Hi,
We just buy KM 110 pro black machine.
On light weight paper under 60g, machine jam issue between drum and fusing unit. sheet don't go under fusing unit, it seem like drum electrostatic catch sheet.
We try different kind of paper under 60g, the same issue.
On 60g and more paper work.

Any had this issue?

Thanks,