Patent ID: 7523704
Filing Date: 2009-04-28
Classification: B41F,B41M

Abstract:
1. A lithographic offset press including, in combination: a rotatable plate cylinder; ink applicator structure for applying ink to said plate cylinder; a blanket cylinder engaging said plate cylinder at a location spaced from said ink applicator structure and said blanket cylinder rotatable with said plate cylinder, said blanket cylinder for receiving ink from said plate cylinder at said location previously applied to said plate cylinder by said ink applicator structure; dampening structure spaced from said plate cylinder for applying a thin layer of water suitable for lithographic printing directly to said blanket cylinder upstream of said location, rotation of said blanket cylinder transporting said thin layer of water from said dampening structure to said location and into engagement with said plate cylinder at said location to transfer a first portion of the water previously directly applied to said blanket cylinder by said dampening structure to said plate cylinder, said plate cylinder during rotation thereof operable to transport said first portion to said ink applicator structure; and a rotatable impression cylinder adjacent to said blanket cylinder for delivering paper or other printable sheet material between said impression cylinder and said blanket cylinder for receiving ink previously applied to said blanket cylinder by said plate cylinder and for receiving a second portion of the water previously directly applied to said blanket cylinder by said dampening structure to facilitate separation of said paper or other printable sheet material from said blanket cylinder.