Printing – Multicolor – Processes
Patent
1982-10-14
1984-12-25
Fisher, J. Reed
Printing
Multicolor
Processes
101248, 101DIG12, 101181, B41F 1312, B41F 2900
Patent
active
044896522
ABSTRACT:
A method for registering in an offset printing press comprises: mounting a printing plate on a shiftable table of a plate bending machine; detecting datum fine lines on said plate, by means of optical sensors; shifting the shiftable table so that said datum fine lines are placed at specific positions; inscribing, by means of a register mark inscribing device, register marks for carrying out automatic registering while, at the same time, bending the lateral edges of the printing plate; thereafter mounting the printing plate on a corresponding plate cylinder of a printing press; and carrying out automatic registering. The above plate bending machine comprises plate bending mechanisms, a shiftable table for holding the printing plate, optical detection sensors disposed above the shiftable table and operating to detect datum lines on the plate and thereby to generate signals for the movement of the table and register mark inscribing devices for automatic registering on a plate cylinder of the printing press.
REFERENCES:
patent: 3914974 (1975-10-01), Devore
patent: 4259904 (1981-04-01), Metje
patent: 4365500 (1982-12-01), Klukow
Hashimoto Hiroyuki
Kobayashi Michiaki
Suzuki Daiji
Takeuchi Hideo
Dai Nippon Insatsu Kabushiki Kaisha
Fisher J. Reed
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