Invention Grant
- Patent Title: Liquid droplet ejection apparatus, method for manufacturing electro-optic device, electro-optic device, and electronic equipment
- Patent Title (中): 液滴喷射装置,电光装置的制造方法,电光装置和电子设备
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Application No.: US12542898Application Date: 2009-08-18
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Publication No.: US08128197B2Publication Date: 2012-03-06
- Inventor: Kenji Kojima
- Applicant: Kenji Kojima
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2004-260998 20040908
- Main IPC: B41J2/165
- IPC: B41J2/165

Abstract:
A liquid droplet ejection apparatus performs a drawing operation on a workpiece set on a set table by driving the ejection of a functional liquid droplet ejection head in a head unit while moving the head unit in a main scanning direction relative to the set table. The liquid droplet ejection apparatus includes an ejection defect test unit for inspecting an ejection defect of the functional liquid droplet ejection head. The ejection defect test unit includes a drawn unit on which a predetermined test pattern is drawn by test ejection from the functional liquid droplet ejection head and ejection-defect determination means for determining the ejection defect by capturing an image of the test pattern drawn on the ejection-defect test unit and recognizing the image. The drawn unit is disposed on a scan moving axis offset from the set table towards the main scanning direction.
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Information query
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