Member to be recognized for alignment; head unit and...

Details Member to be recognized for alignment; head unit and... Member to be recognized for alignment; head unit and...

2006-10-03

2006-10-03

Pham, Hai (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S037000

Reexamination Certificate

active

07116348

ABSTRACT:
A method of manufacturing a device includes introducing each color of material into a plurality of liquid droplet ejection heads and scanning the plurality of liquid droplet ejection heads relative to a substrate through a head unit to selectively eject the material, wherein the head unit includes a carriage with two members recognized for alignment, each member being disposed in an object set in position and having formed therein a mark for image-wise recognition, each member comprising a member main body formed substantially in a columnar shape and having a mirror-finished front end surface, wherein the marks are formed into a depressed shape in a substantially central part of the front end surface of each member main body and the marks are disposed at a distance from each other, and the plurality of liquid droplet ejection heads mounted on the carriage.

REFERENCES:
patent: 5946584 (1999-08-01), Ishikiriyama
patent: 6501527 (2002-12-01), Hirose et al.
patent: 6702419 (2004-03-01), Stoessel et al.
patent: 2003/0013340 (2003-01-01), Martin et al.
patent: 2003/0063154 (2003-04-01), Goto
patent: A-03-183116 (1991-08-01), None

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