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AssigneeDainippon Screen Mfg. Co., Ltd.
InventorsToru Kawada, Toshio Tamura, Ryuzo Tokimasa, Susumu Takahashi
Estimating the term…
Provided is a drum surface scanner with which punched holes and/or cuts can be formed in a plate which has been correctly defined by position, and the plate can be clamped to a recording drum. When a plate P comes in front of movable pins 113, i.e., on a hole punch unit 4 side, the upper roller of a conveyor roller 125 moves down, and conveyor rollers 124 and 125, and conveyor belts 111 all start rotating in the positive direction. Once the plate P moves out of the range covered by a sensor PH159, the movable pins 113 follow the tail end of the plate P at a given distance therefrom. When the front end of the plate P reaches the hole punch unit 4, the movable pins 113 which have been chasing the plate P push the tail end thereof to make the front end thereof abut to the hole punch unit 4. At the same time, based on the movement amount of the movable pins 113 from their original positions to current positions pushing the tail end of the plate P, the plate P is checked for its length Y. Plate conveyance with respect to positioning pins 51 on the recording drum 5 is carried out in a similar manner.
A drum surface scanner including a conveyance unit for conveying a plate to an exposure unit in which the plate is attached to a recording drum for scanning and exposure, said conveyance unit comprising:
A drum surface scanner including a conveyance unit for conveying a plate to an exposure unit in which the plate is attached to a recording drum for scanning and exposure, said conveyance unit comprising:
A drum surface scanner including a conveyance unit for conveying a plate to an exposure unit in which the plate is attached to a recording drum for scanning and exposure, said conveyance unit comprising:
Dependencies are inferred from the claim text.