Reference position determining method

Details Reference position determining method Reference position determining method

2005-08-11

2010-02-09

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S833000, C382S151000, C702S150000

Reexamination Certificate

active

07657997

ABSTRACT:
In a printing apparatus, individual positional data for positions of four object marks provided on a plurality of FPCs held on a conveyance tray are acquired by a mark position acquisition section based on an image acquired by an image acquisition unit. In a displaced mark specifying section, relative positional relations of four object marks are determined, and compared with a reference positional relation, by which a displaced object mark is specified. Then, in a reference position determining section, a reference position for a plurality of FPCs on a conveyance tray is determined based on a plurality of object marks resulting from excluding the displaced object mark out of the four object marks. Thus, a reference position in execution of printing in a printing unit can be determined with high precision.

REFERENCES:
patent: 5992013 (1999-11-01), Morita
patent: 6591219 (2003-07-01), Iisaka
patent: 7349575 (2008-03-01), Hattori et al.
patent: 63-074530 (1988-04-01), None
patent: 11-154799 (1999-06-01), None

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