To solve the problem of having risk of causing the situation unable to surely separate and eject the tip of recording paper from a belt, when sucking and carrying the recording paper by using the endless belt.

A suction-carrying exhaust duct is arranged on the downstream side in the carrying direction of a sheet material, and at least a tip part of the recording paper is separated from the endless belt by blowing exhaust air upon the recording paper from a reverse surface of a carrier belt.