Invention Grant
- Patent Title: Image forming apparatus and image forming method that detects an amount of color misalignment using reflected light
- Patent Title (中): 使用反射光检测颜色偏移量的图像形成装置和图像形成方法
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Application No.: US12111384Application Date: 2008-04-29
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Publication No.: US08150302B2Publication Date: 2012-04-03
- Inventor: Katsuyuki Kitao
- Applicant: Katsuyuki Kitao
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-121140 20070501; JP2008-068983 20080318
- Main IPC: G03G15/01
- IPC: G03G15/01
Abstract:
A pattern forming unit forms a color-misalignment detection pattern on an image carrier. A light-intensity detecting unit detects the color-misalignment detection pattern formed on the image carrier by irradiating the image carrier with a light and detecting light intensity of a reflected light from the image carrier. A color-misalignment-amount detecting unit detects an amount of a color misalignment of an image based on the light intensity of the reflected light detected by the light-intensity detecting unit. A spot of the light on the image carrier is elongated in a main-scanning direction.
Public/Granted literature
- US20080273903A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD Public/Granted day:2008-11-06
Information query
