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2. 发明授权

US06513900B2 Detection of non-operating nozzle by light beam passing through aperture 有权
标题翻译：通过光束通过光圈检测非操作喷嘴
公开(公告)号：US06513900B2
公开(公告)日：2003-02-04
申请号：US09789546
申请日：2001-02-22
申请人： Hironori Endo , Hiroshi Asawa , Hitoshi Matsumoto
发明人： Hironori Endo , Hiroshi Asawa , Hitoshi Matsumoto
IPC分类号： B41J2125
CPC分类号： B41J2/1721 , B41J2/16508 , B41J2/16523 , B41J2/16579 , B41J2002/1728
摘要： The object is to provide a technique whereby a non-operating nozzle can be detected with higher accuracy. The present invention resides in a printer for printing images by ejecting ink droplets from a plurality of nozzles, wherein an optical path in which light from a light-emitting element 40a for emitting light is focused by a first focusing element 41, allowed to pass through a focusing aperture 43a that is smaller than the area illuminate by the light, and transmitted through the focusing aperture 43a to a light-receiving element 40b for receiving light is laid out according to a configuration in which an intersection is formed with the path described by the ink droplets ejected by the nozzles. The light-emitting element 40a is energized and caused to emit light. The nozzles are actuated and ink droplets are ejected in the direction of a space in which the intensity of light is greater than a prescribed level and which is part of the optical path between the focusing aperture 43a and the light-receiving element 40b. A non-operating nozzle is then detected based on the fact that the light received by the light-receiving element 40b is blocked by the ink droplets thus ejected.
摘要翻译：本发明的目的是提供一种可以更精确地检测非操作喷嘴的技术。本发明在于一种用于通过从多个喷嘴喷射墨滴来打印图像的打印机，其中来自用于发光的发光元件40a的光被第一聚焦元件41聚焦的光路被允许通过通过聚光孔43a向被照射的受光元件40b照射小于被光照射的区域的聚光孔43a，根据与该光路的路径形成交点的结构，由喷嘴喷射的墨滴。发光元件40a通电并使其发光。喷嘴被致动，并且墨水沿着光强大于规定水平的空间的方向喷射，并且是聚焦孔43a和光接收元件40b之间的光路的一部分。然后基于由受光元件40b接收的光被所喷射的墨滴阻挡的事实来检测不操作的喷嘴。

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