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1. 发明申请

WO2003067339A1 IMAGE FORMING APPARATUS AND IMAGE FORMATION CONTROL METHOD 审中-公开
标题翻译：图像形成装置和图像形成控制方法
公开(公告)号：WO2003067339A1
公开(公告)日：2003-08-14
申请号：PCT/JP2003/000993
申请日：2003-01-31
申请人： CANON KABUSHIKI KAISHA , MORITA, Tetsuya
发明人： MORITA, Tetsuya
IPC分类号： G03G21/00
CPC分类号： G03G15/6579 , G03G2215/00578
摘要： A frame image (210) with 5-mm wide margins is formed on a paper sheet on the basis of the leading end and widthwise end positions of the paper sheet (107) detected by a contact image sensor (CIS) (204) in an adjustment mode. After that, this paper sheet (107) is circulated to a feed position via a circulating path (206) and paper convey path (205), and the CIS (204) detects the frame image position formed on the circulated paper sheet and its paper end portion so as to detect errors from the 5-mm wide margins. Correction values which can cancel these errors are stored in a correction parameter storage unit (71), and forming start timing control is made using these correction values upon forming an image in an actual job. In this way, an image forming apparatus which can detect the paper feed timing with high precision, can eliminate deterioration of the image position precision due to mounting errors and durability of components, and can always precisely adjust the image position is provided.
摘要翻译：基于由接触图像传感器（CIS）（204）检测到的纸张（107）的前端和宽度方向端位置，在纸张上形成具有5mm宽边缘的框架图像（210）调整模式。之后，该纸张（107）通过循环路径（206）和纸张输送路径（205）循环到进给位置，CIS（204）检测形成在循环纸张及其纸张上的框架图像位置以便检测5毫米宽边距的误差。能够抵消这些误差的校正值被存储在校正参数存储单元（71）中，并且在实际工作中形成图像时，使用这些校正值来形成开始定时控制。以这种方式，能够以高精度检测送纸时刻的图像形成装置能够消除由于安装误差和部件的耐久性导致的图像位置精度的劣化，并且能够始终精确地调整图像位置。

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