EP 0512549 B2 20020925 - Printing press
Title (en)
Printing press
Title (de)
Druckmaschine
Title (fr)
Presse à imprimer
Publication
Application
Priority
- JP 10589891 A 19910510
- JP 16956191 A 19910710
Abstract (en)
[origin: EP0512549A1] The improved printing press comprises: a single plate cylinder that allows press plates for n colors to be disposed cylindrically at predetermined intervals; a platemaking unit that is disposed on the circumference of the plate cylinder for preparing a single press for one color or n platemaking units that are disposed on the circumference of the plate cylinder for individually preparing press plates for single colors; an ink supply assembly for the n colors, an impression cylinder whose diameter is one-nth of that of the plate cylinder, said impression cylinder having a single sheet of printing paper wrapped around it and delivering the printing paper after it has made n consecutive revolutions; and, optionally, either one or both of a rubber-covered blanket cylinder interposed between the plate cylinder and the impression cylinder and a dampening water supply assembly for supplying dampening water to the press plate or plates. In the first case where only one platemaking unit is used, the printing press is applicable to both direct and offset printing on whichever types of press plates (letterpress, intaglio or lithography) or irrespective of whether dampening water is used or not on lithographic plates. The press obviates the need for registration in multicolor printing and can be operated even by unskilled operators. In the second case where a plurality of platemaking units are used, the printing press enables all press plates of interest to be prepared simultaneously on the single plate cylinder even in the process of multicolor printing, thereby shortening the platemaking time and, hence, the overall process time including platemaking and printing operations. The press is not only sufficiently simple in construction to realize a compact and small-sized system but also very easy to operate, permitting printing to be done at comparatively high speed. <IMAGE>
IPC 1-7
IPC 8 full level
B41C 1/05 (2006.01); B41C 1/10 (2006.01); B41C 1/12 (2006.01); B41F 30/06 (2006.01)
CPC (source: EP)
B41F 30/06 (2013.01); B41C 1/1075 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0512549 A1 19921111; EP 0512549 B1 19950628; EP 0512549 B2 20020925; DE 69203148 D1 19950803; DE 69203148 T2 19951102; DE 69203148 T3 20030116
DOCDB simple family (application)
EP 92107737 A 19920507; DE 69203148 T 19920507