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1. 发明公开

EP1392049A3 Image forming apparatus 有权
标题翻译：成像设备
公开(公告)号：EP1392049A3
公开(公告)日：2005-09-21
申请号：EP03018999.7
申请日：2003-08-21
申请人： CANON KABUSHIKI KAISHA
发明人： Takahashi, Masayoshi , Nakamori, Tomohiro , Tanaka, Yoshihiko
IPC分类号： H04N1/50
CPC分类号： H04N1/506 , H04N1/053 , H04N1/06 , H04N1/1135 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744 , H04N2201/04786 , H04N2201/04793
摘要： This invention has as its object to provide an image forming apparatus in which the number of beam detectors is decreased and which is low in cost and high in the accuracy of the registration position of an image of each color as well as high in quality. To this end, The image forming apparatus is provided with a plurality of image bearing members, an optical system having a plurality of light emitting elements suitable for generating light beams for scanning the image bearing members, a single polygon mirror suitable for deflecting the light beams generated from the plurality of light emitting elements onto the image bearing members, and a beam detector corresponding to at least one of the plurality of image bearing members, and for receiving the light beams scanned by the polygon mirror and producing a first synchronizing signal for recording an image on the relevant image bearing member, a storing portion suitable for storing therein information regarding the error of each side of the polygon mirror, and a producing unit suitable for producing a second synchronizing signal for recording an image on the image bearing member not provided with the beam detector, by delaying the first synchronizing signal outputted from the beam detector, on the basis of the value of the storing portion.
摘要翻译：本发明的目的是提供一种图像形成装置，其中光束检测器的数量减少，并且成本低并且每种颜色的图像的对准位置的准确性高，并且质量高。为此，图像形成设备设置有多个图像承载部件，具有适于产生用于扫描图像承载部件的光束的多个发光元件的光学系统，适于偏转光束的单个多面镜从所述多个发光元件产生到所述图像承载部件上的光束检测器，以及与所述多个图像承载部件中的至少一个相对应的光束检测器，并且用于接收由所述多面镜扫描的光束并产生用于记录的第一同步信号在相关图像承载部件上的图像，适于在其中存储关于多面镜的每一侧的误差的信息的存储部分以及适于产生第二同步信号的生成单元，所述第二同步信号用于在未设置图像承载部件上记录图像利用光束检测器，通过延迟从光束检测器输出的第一同步信号 r，基于存储部分的值。

2. 发明公开

EP1392049A2 Image forming apparatus 有权
公开(公告)号：EP1392049A2
公开(公告)日：2004-02-25
申请号：EP03018999.7
申请日：2003-08-21
申请人： CANON KABUSHIKI KAISHA
发明人： Takahashi, Masayoshi , Nakamori, Tomohiro , Tanaka, Yoshihiko
IPC分类号： H04N1/50
CPC分类号： H04N1/506 , H04N1/053 , H04N1/06 , H04N1/1135 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744 , H04N2201/04786 , H04N2201/04793
摘要： This invention has as its object to provide an image forming apparatus in which the number of beam detectors is decreased and which is low in cost and high in the accuracy of the registration position of an image of each color as well as high in quality.
To this end, The image forming apparatus is provided with a plurality of image bearing members, an optical system having a plurality of light emitting elements suitable for generating light beams for scanning the image bearing members, a single polygon mirror suitable for deflecting the light beams generated from the plurality of light emitting elements onto the image bearing members, and a beam detector corresponding to at least one of the plurality of image bearing members, and for receiving the light beams scanned by the polygon mirror and producing a first synchronizing signal for recording an image on the relevant image bearing member, a storing portion suitable for storing therein information regarding the error of each side of the polygon mirror, and a producing unit suitable for producing a second synchronizing signal for recording an image on the image bearing member not provided with the beam detector, by delaying the first synchronizing signal outputted from the beam detector, on the basis of the value of the storing portion.

3. 发明授权

EP1392049B1 Image forming apparatus 有权
公开(公告)号：EP1392049B1
公开(公告)日：2013-04-10
申请号：EP03018999.7
申请日：2003-08-21
申请人： CANON KABUSHIKI KAISHA
发明人： Takahashi, Masayoshi , Nakamori, Tomohiro , Tanaka, Yoshihiko
IPC分类号： H04N1/053 , H04N1/50
CPC分类号： H04N1/506 , H04N1/053 , H04N1/06 , H04N1/1135 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744 , H04N2201/04786 , H04N2201/04793
摘要： This invention has as its object to provide an image forming apparatus in which the number of beam detectors is decreased and which is low in cost and high in the accuracy of the registration position of an image of each color as well as high in quality. To this end, The image forming apparatus is provided with a plurality of image bearing members, an optical system having a plurality of light emitting elements suitable for generating light beams for scanning the image bearing members, a single polygon mirror suitable for deflecting the light beams generated from the plurality of light emitting elements onto the image bearing members, and a beam detector corresponding to at least one of the plurality of image bearing members, and for receiving the light beams scanned by the polygon mirror and producing a first synchronizing signal for recording an image on the relevant image bearing member, a storing portion suitable for storing therein information regarding the error of each side of the polygon mirror, and a producing unit suitable for producing a second synchronizing signal for recording an image on the image bearing member not provided with the beam detector, by delaying the first synchronizing signal outputted from the beam detector, on the basis of the value of the storing portion.

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