Patent ID: 6398360
Filing Date: 2002-06-04
Classification: B41J

Abstract:
A printing station for printing alternately on a wide paper web and a narrow paper web, wherein said printing station comprises:a clip; a split rotary platen including a shaft, a main platen roll, including a first core and a first elastomeric layer extending around said first core, wherein said main platen roll is attached to turn with said shaft, and a platen roll extension, including a second core and a second elastomeric layer extending around said second core, wherein said platen roll extension is slidable on said shaft between a first position in which said platen roll extension engages said main platen roll, to turn with said main platen roll, and a second position in which said platen roll extension is disengaged with said main platen roll and rotatable on said shaft, said split rotary platen is longer than a width of said wide paper web, wherein said main platen roll is shorter that said width of said wide paper web, and wherein said main platen roll is longer than a width of said narrow paper web, said shaft includes first and second slots for holding said clip in engagement with said shaft, said first slot is positioned to hold said clip between said main platen roll and said platen roll extension in said second position, and said second slot is positioned to hold said platen roll extension in said first position, in engagement with said main platen roll; a motor driving said shaft in rotation; and a print head held against said split rotary platen, wherein said print head includes an array of elements for forming printed images on said wide paper and on said narrow paper web driven between said split rotary platen and said print head.