AUTOMATED METHOD AND APPARATUS FOR VISION REGISTRATION OF GRAPHICS AREAS OPERATING FROM THE UNPRINTED SIDE

Title:

AUTOMATED METHOD AND APPARATUS FOR VISION REGISTRATION OF GRAPHICS AREAS OPERATING FROM THE UNPRINTED SIDE

Document Type and Number:

WIPO Patent Application WO/2005/108027

Kind Code:

A1

Abstract:

A method and apparatus (10) are disclosed for performing finishing operations on at least one graphics area (50) on a graphics sheet (40), the graphics sheet having a graphics side, an opposite process side, and reference features (e.g. corners A-D), the graphics side bearing the graphics area(s) and registration marks (52A, 52B, etc.) in predetermined positions with respect to the graphics area(s). The method comprises positioning the graphics sheet on a sheet-receiving surface (2), sensing from the graphics side the positions of the registration marks, determining the coordinates of the graphics area(s) with respect to the sheet-receiving surface as if viewable from the process side, and performing finishing operations on the process side of the graphics sheet based on such determination, whereby such process-side finishing operations compensate for variations of the graphics area(s).

Inventors:

ALSTEN PETER (US)
MIKKELSEN STEEN (US)
ANDERSEN GEO (DK)

Application Number:

PCT/US2005/015913

Publication Date:

November 17, 2005

Filing Date:

May 05, 2005

Export Citation:

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Assignee:

MIKKELSEN GRAPHIC ENGINEERING (US)
ALSTEN PETER (US)
MIKKELSEN STEEN (US)
ANDERSEN GEO (DK)

International Classes:

B26D5/00; B26D7/20; B31B1/74; B31B50/06; B31B50/20; B31B50/25; (IPC1-7): B26D5/00

Domestic Patent References:

WO1999020456A1

1999-04-29

Foreign References:

US3805650A	1974-04-23
US6672187B2	2004-01-06
US6619167B2	2003-09-16
US6619168B2	2003-09-16
US6672187B2	2004-01-06

Other References: