Patent ID: 7360485

Claim:
A planographic printing plate feeding apparatus comprising: a mounting unit on which a stack of laminated sets comprising planographic printing plates and slip-sheets is mounted; a conveyance unit which can convey an uppermost set by applying a load and a conveyance force to a set stacked at an uppermost portion of the stack; and a drive unit which drives the conveyance unit and adjusts the load applied to the uppermost set from the conveyance unit, wherein the drive unit at least adjusts the load applied to the uppermost set in a range such that the conveyance force (F 0 ) applied to the uppermost set exceeds a maximum static friction force (F 2 ′) between the uppermost set and a next set; wherein the conveyance unit includes a conveyance roller which comes into contact with the uppermost set and rotates while applying the load to the uppermost set, thereby applying the conveyance force.