Dainippon Screen Mfg. Co., Ltd.

Takanori Kitani

Minoru Murayama

Katsumichi Miyamoto

Kyohei Fujisawa

Kazuyuki Matsuoka

Hiromi Sakurai

A digital impositioning apparatus performs impositioning using file output of electronic data instead of film output. An impositioning portion creates imposition data for each page based on arrangement information. Here, in order to conform to the type of a printer , the impositioning portion rewrites as required the arrangement information by an instruction from a terminal to create suitable imposition data. A joining portion positions the above imposition data so as to be optimally arranged on a printing plate. This positioning can be performed as being checked on a screen of the terminal . The print information adding portion reads from outside and arranges accessories required for printing. A dot generating portion converts a rasterized file after the above data processing from raster style data for each page to dot data organizing a plurality of pages, in consideration of dot gain adjustment from a control peroration . Thus, it is possible to achieve labor savings in Plate Making/Printing process as well as improvement in printing accuracy.

Digital impositioning apparatus

A unit image area is specified, and unit image data representing a unit image in the unit image area is prepared. A plurality of the unit image areas are laid out on an image plane in a multi-composing manner, whereby layout information representing the multi-composing layout of the unit image areas is created. Mask data representing a plurality of multi-composed unit image areas are then prepared, based on the unit image area data and the layout information. Generated subsequently is an image recording signal representing unit images to be respectively drawn in the plurality of unit image areas, which are expressed by the mask data, on the image plane. Multi-duplicated images are eventually recorded on a photosensitive material according to the image recording signal without using a photocomposer.

Growing community of inventors

Kyoto, Japan

Takanori Kitani