Patent ID: 7311204
Filing Date: 2007-12-25
Classification: B31D,B65B,B65D

Abstract:
1. An unit detachably mountable to a main assembly of an electrophotographic image forming apparatus, wherein said unit is packed with a packing member, said packing member comprising: a plurality of medium accommodating portions arranged in the form of an array, a non-return valve for passing a medium to each of said medium accommodating portions and stopping the medium away from each of said medium accommodating portions, wherein said non-return valve is provided for each of said medium accommodating portions; and an introducing portion for introducing the medium into each of said medium accommodating portions with said non-return valve from an outside of said packing member to balloon each of said medium accommodating portions, said introducing portion being independently provided for each of said medium accommodating portions; and a sealing region disposed upstream of said non-return valve with respect to a direction of the introduction of the medium from said introducing portion toward said non-return valve for sealing each of said introducing portions to prevent the medium from leaking to an outside of said packing member, said sealing region being sealed to keep the medium in each of said introducing portions.