Title:
SCANNED MARKING OF WORKPIECES
Document Type and Number:
WIPO Patent Application WO1995013593
Kind Code:
A3
Abstract:
A technique for marking pixels on workpieces by routing a scanned beam to different markings stations to mark individual pixels on selected ones of the workpieces. Angular position of a scanning mirror in a raster scanner is determined by moving a beam, reflected from the scanner, across rulings on an optical element during scanning. A print head for printing spots on a surface of a workpiece has a walled, internally pressurized chamber with an external curved surface and structure for causing an inked web to conform to the contour of the external curved surface and to be pulled along the external curved surface. Two workpieces may be marked at two marking stations by two-directional scanning.
Inventors:
EMGE GARRY J
CARTER STEPHEN W
CARTER STEPHEN W
Application Number:
PCT/US1994/011407
Publication Date:
July 20, 1995
Filing Date:
October 06, 1994
Export Citation:
Assignee:
MARKEM CORP (US)
International Classes:
B23K26/067; B41J2/32; B41J2/44; G06K1/12; G06K15/02; (IPC1-7): G06K15/02; B23K26/06
Foreign References:
| EP0291461A1 | 1988-11-17 | |||
| EP0135851A2 | 1985-04-03 | |||
| EP0522980A2 | 1993-01-13 | |||
| EP0343443A2 | 1989-11-29 |
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