Printing – Processes – Position or alignment
Patent
1993-06-07
1994-05-24
Eickholt, Eugene H.
Printing
Processes
Position or alignment
101248, 250571, 250548, B41F 1324
Patent
active
053138864
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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Eickholt Eugene H.
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
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