公开(公告)号：US20030174200A1

公开(公告)日：2003-09-18

申请号：US10378801

申请日：2003-03-04

申请人： KONICA CORPORATION

发明人： Kenji Izumiya ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Ryuji Okutomi ,  Shinobu Kishi ,  Satoshi Ogata ,  Eiji Nishikawa ,  Tadayuki Ueda ,  Yumiko Higashi

IPC分类号： B41J002/435 ,  B41J002/47

CPC分类号： G02B26/122

摘要： There is described a duplex image-forming apparatus having a function of forming images onto both sides of a transfer material. The apparatus includes an image-forming section to respectively form an obverse-side image and a reverse-side image on a photoreceptor element by scanning a light beam, modulated with image signals based on pixel-clock signals and reflected from a polygon mirror rotating at an operating velocity based on polygon-clock signals; a transferring section to transfer said obverse-side image and said reverse-side image onto both surfaces of said recording sheet; a fixing section to fix the images onto both surfaces of said recording sheet; and a clock-frequency changing section to change a pixel-clock frequency, and a polygon-clock frequency, corresponding to a degree of shrinkage of said recording sheet caused by a fixing operation performed in said fixing section, at a transition time of an image-forming operation from one side to another side.

摘要翻译： 描述了具有在转印材料的两面上形成图像的功能的双面成像设备。 该装置包括图像形成部分，用于通过扫描光束分别形成正面图像和反面图像，该光束基于像素时钟信号被图像信号调制并从多面镜反射 基于多边形时钟信号的工作速度; 将所述正面图像和所述反面图像转印到所述记录纸的两个表面上的转印部分; 固定部分，用于将图像固定在所述记录纸的两个表面上; 以及时钟频率改变部分，用于在图像的转变时间改变对应于由所述定影部分执行的定影操作引起的所述记录纸张的收缩程度的像素时钟频率和多边形时钟频率 从一侧到另一边的形成操作。

公开(公告)号：US20030214568A1

公开(公告)日：2003-11-20

申请号：US10435743

申请日：2003-05-08

申请人： Konica Corporation

发明人： Eiji Nishikawa ,  Hiroyuki Maruyama ,  Hiroyuki Arai ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Shinobu Kishi ,  Satoshi Ogata ,  Kenichi Ozawa ,  Tadayuki Ueda ,  Yumiko Higashi

IPC分类号： B41J002/385 ,  G03G015/01

CPC分类号： B41J29/393 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0161 ,  G06K15/129 ,  H04N1/506

摘要： In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is represented by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted.

摘要翻译： 在通过叠加分量彩色图像来形成彩色图像的图像形成装置中，控制装置获取表示相对于任意确定的位置基准值的分量彩色图像的多个对准标记图像中的每一个的形成位置的位置数据， 将位置数据分配到表示形成一个标记图像的范围的单位基准范围的每一个中，根据表示单位基准范围的前沿的各个基准值，将每个单位基准范围划分的位置数据转换为基准值， 数据表示相互重叠的范围共有的范围，每个数据由对应于通过定时脉冲的上升沿和下降沿的一对位置数据表示为分量颜色的标记图像的读取位置数据，并且计算 基于此，分量彩色图像彼此的位置偏差 提取位置数据。

公开(公告)号：US20030215250A1

公开(公告)日：2003-11-20

申请号：US10434132

申请日：2003-05-08

申请人： Konica Corporation

发明人： Tadayuki Ueda ,  Toshihiro Motoi ,  Satoshi Ogata ,  Ryuji Okutomi ,  Shinobu Kishi ,  Eiji Nishikawa ,  Kenji Izumiya ,  Yumiko Higashi ,  Hiroyuki Maruyama

IPC分类号： G03G015/00

CPC分类号： G03G15/5008 ,  G03G2215/0119

摘要： An image forming apparatus comprises: a photosensitive member; an intermediate transferring member to which an image formed on the photosensitive member is transferred; a press/release operation controlling section for controlling a pressing of the intermediate transferring member to the photosensitive member and for controlling a release of the pressing; a rotational actuation controlling section for controlling a rotational actuation of the photosensitive member; a judging section for judging a finish of a pressing operation carried out by the press/release operation controlling section; and a start timing controlling section for starting a control for the rotational actuation of the photosensitive member when the judging section judges the finish of the pressing operation by the rotational actuation controlling section.

摘要翻译： 图像形成装置包括：感光构件; 传送形成在感光构件上的图像的中间转印构件; 压力/释放操作控制部分，用于控制中间转印部件到感光部件的按压并用于控制按压的释放; 用于控制感光构件的旋转致动的旋转致动控制部分; 判断部分，用于判断由所述按压/释放操作控制部分执行的按压操作的完成; 以及开始正时控制部分，用于当所述判断部分判断所述旋转致动控制部分的按压操作结束时，开始对所述感光部件的旋转动作的控制。