METHODS AND APPARATUS FOR ALIGNING PRINT HEADS

METHODS AND APPARATUS FOR ALIGNING PRINT HEADS

In a first aspect, a system is provided. The system includes (1) a stage adapted to move a substrate relative to print heads during printing; (2) at least one print head suspended from a support above the stage and adapted to be moveable in a plane above the stage; (3) a controller operable to rotat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SZE FAN CHEUNG, JI HONGBIN, SHANG QUANYUAN, JOZWIAK JANUSZ, WHITE JOHN M, KURITA SHINICHI, HUANG INCHEN, BEER EMANUAL
Format: Patent
Sprache:eng
Schlagworte:
CORRECTION OF TYPOGRAPHICAL ERRORS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Beschreibung
Zusammenfassung:In a first aspect, a system is provided. The system includes (1) a stage adapted to move a substrate relative to print heads during printing; (2) at least one print head suspended from a support above the stage and adapted to be moveable in a plane above the stage; (3) a controller operable to rotate the print head about a center of the print head; and (4) an imaging system adapted to capture an image of the print head and to determine a center point of the print head based upon images of the print head captured as the print head is rotated. Numerous other aspects are provided.