Printing – Multicolor – Rotary machines
Reexamination Certificate
2005-09-06
2005-09-06
Hirshfeld, Andrew H. (Department: 2854)
Printing
Multicolor
Rotary machines
C101S181000
Reexamination Certificate
active
06938543
ABSTRACT:
A web fed printing machine includes a web path provided between two sequentially disposed printing units and a misregistration detector for detecting misregistration in superimposition printing performed by the printing units. During superimposition printing, cylinder fine-move mechanisms finely move corresponding plate cylinders based on detected misregistration in order to adjust the registration. A web path length modification mechanism is provided in the web path. A control unit is connected to the web path length modification mechanism, the misregistration detector, and a paster. When a pasting signal is generated, the plate cylinder fine-move mechanisms stop making registration adjustment. At predetermined timing, the misregistration detector detects misregistration in printing performed by the printing units. The web path length modification mechanism performs a misregistration elimination action based on detected misregistration. Subsequently, the plate cylinder fine-move mechanisms resume making registration adjustment, and the web path length modification mechanism performs a return action.
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Inagaki Takafumi
Kasai Noriyuki
Hamdan Wasseem H.
Hirshfeld Andrew H.
Tokyo Kikai Seisakusho Ltd.
Westerman Hattori Daniels & Adrian LLP
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