Patent ID: 8167424

Claim:
A restraint device comprising: a support member which includes a support surface capable of supporting a recording medium and a suction holes opened to the support surface and generating a negative pressure therein, the support member being capable of sucking the recording medium supported to the support surface toward the support surface on the basis of the negative pressure generated inside the suction hole; a shield member which is disposed to face the support surface having the recording medium disposed thereon and is capable of shielding the opening of the suction hole together with a supported portion of the recording medium supported to the support surface upon being sucked toward the support surface on the basis of the negative pressure generated inside the suction hole such; and a suction member which is disposed on the opposite side of the support member about the shield member and applies a suction force to the shield member on the basis of the negative pressure generated inside the suction hole, the suction force being smaller than that applied from the support member.