Electronic method of positioning a register mark sensor of a sheet printing machine
First Claim
1. A method for positioning a register mark sensor in a sheet printing machine, wherein a register mark sensor is moved in direction perpendicular to the direction of the movement of the sheet for detecting a register mark arrangement on the sheet, wherein the register mark sensor is moved until it is positioned in a defined scanning position relative to the register mark arrangement, the method of which comprises the steps of:
- (a) placing on the sheet a preliminary register mark, a given known distance A, perpendicular to the direction of the movement of the sheet, from a given register mark line, and(b) after printing at least one sheet, positioning the preliminary mark sensor in relation to the preliminary mark.
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Accused Products
Abstract
A method for positioning a register mark sensor in a sheet printing machine, wherein a register mark sensor is moved in direction perpendicular to the direction of the movement of the sheet for detecting a register mark arrangement on the sheet, wherein the register mark sensor is moved until it is positioned in a defined scanning position relative to the register mark arrangement, the method of which includes the steps of: placing on the sheet a preliminary register mark, a given known distance A, perpendicular to the direction of the movement of the sheet, from a given register mark line, and after printing at least one sheet, positioning the preliminary mark sensor in relation to the preliminary mark.
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Citations
4 Claims
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1. A method for positioning a register mark sensor in a sheet printing machine, wherein a register mark sensor is moved in direction perpendicular to the direction of the movement of the sheet for detecting a register mark arrangement on the sheet, wherein the register mark sensor is moved until it is positioned in a defined scanning position relative to the register mark arrangement, the method of which comprises the steps of:
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(a) placing on the sheet a preliminary register mark, a given known distance A, perpendicular to the direction of the movement of the sheet, from a given register mark line, and (b) after printing at least one sheet, positioning the preliminary mark sensor in relation to the preliminary mark. - View Dependent Claims (2, 3, 4)
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Specification