US 2006/0038874 A1 · Image recorder

Abstract

Positioning of a printing plate in an image recorder is performed by the same method used for punching positioning holes for printing press in the printing plate. Specifically, the positioning for image recording is performed with reference to an edge of the printing plate on the same side as the edge of the printing plate used as a reference for punching the positioning holes for printing press. When the positioning for punching the positioning holes for printing press is performed with reference to the central position of the printing plate, the central position of the printing plate is detected based on a measured width of the printing plate, and the positioning for image recording is carried out with reference to the central position. Consequently, an image recorded on the printing plate by the image recorder and the positioning holes for printing press in the printing plate always have the same positional relationship.

Claims15

Dependent claims

An image recorder comprising:

a transport element for transporting a rectangular printing plate in a first direction;
a positioning element for moving said printing plate in a second direction perpendicular to said first direction, thereby positioning said printing plate in said second direction;
and
an image recording element for directing a light beam onto said printing plate positioned in said second direction by said positioning element, thereby recording an image on said printing plate, wherein
said positioning element selectively executes one of making one edge of two edges of said printing plate almost parallel to said first direction reach a first reference edge position and making the other edge of said two edges reach a second reference edge position, depending on a positioning method used for punching positioning holes for printing press in said printing plate.

2 more elements

An image recorder comprising:

a transport element for transporting a rectangular printing plate in a first direction;
a positioning element for moving said printing plate in a second direction perpendicular to said first direction, thereby positioning said printing plate in said second direction;
and
an image recording element for directing a light beam onto said printing plate positioned in said second direction by said positioning element, thereby recording an image on said printing plate, wherein
said positioning element selectively executes one of making a reference edge of said printing plate almost parallel to said first direction reach a predetermined reference edge position and making a central position of said printing plate in said second direction reach a predetermined reference central position, depending on a positioning method used for punching positioning holes for printing press in said printing plate.

2 more elements

Dependencies are inferred from the claim text.

Image recorder

Life of this patent

Image recorder

Life of this patent

Abstract

Claims15