PASTE SUPPLY DEVICE, PASTING BOOKBINDING APPARATUS AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To uniformly coat paper with paste by stably supplying paste to a paste discharge device from a paste supply device and to prevent the interruption of paste coating treatment and the production of a booklet rejected by poor pasting caused by the reduction o the residual amount of paste in a paste housing container during pate coating. SOLUTION: A press means 96 for pressing the paste housing container 92 to discharge the paste Na housed in the container is constituted of a pressure member 960 for pressing the bottom opposed to the discharge opening part of the paste housing container 92 and a drive means for driving the pressure member 960 in a movable manner. The pressure of the paste in the paste housing container 92 is held to constant pressure by moving the pressure member 960 by the drive means to press the bottom of the paste housing container 92 under constant load to supply the paste to the paste discharge device 80 through a supply pipe 88.