Sheet conveying apparatus
    1.
    发明授权
    Sheet conveying apparatus 失效
    纸张输送装置

    公开(公告)号:US6059285A

    公开(公告)日:2000-05-09

    申请号:US991856

    申请日:1997-12-16

    摘要: The present invention provides a sheet conveying apparatus, and an image reading apparatus and an image forming apparatus having such a sheet conveying apparatus, in which skew correction of a sheet can be effected with high accuracy. A sheet convey means is provided at an upstream side of a skew correction means for correcting skew-feed of a sheet, and the sheet convey means is shifted by a shift means in a direction substantially perpendicular to the sheet conveying direction. A control means drives the shift means to shift the sheet convey means pinching the sheet to be skew-corrected by the skew correction means by a distance corresponding to a sheet skew amount on the basis of sheet skew amount information from a sheet skew amount detection means for detecting a skew amount of the sheet, thereby shifting the sheet in a skew correction direction.

    摘要翻译: 本发明提供了一种片材输送装置,以及具有这种片材输送装置的图像读取装置和图像形成装置,其中可以高精度地进行片材的歪斜校正。 片材传送装置设置在歪斜校正装置的上游侧,用于校正片材的偏斜进给,并且片材传送装置在基本上垂直于片材传送方向的方向上被移位装置移动。 控制装置驱动移位装置,以便基于来自纸张歪斜量检测装置的纸张歪斜量信息,使纸张输送装置夹紧纸张以由歪斜校正装置偏斜校正一个与纸张歪斜量对应的距离 用于检测片材的歪斜量,从而沿歪斜校正方向移动片材。

    Image forming apparatus and control method thereof
    6.
    发明申请
    Image forming apparatus and control method thereof 失效
    图像形成装置及其控制方法

    公开(公告)号:US20060110176A1

    公开(公告)日:2006-05-25

    申请号:US11281094

    申请日:2005-11-17

    IPC分类号: G03G15/08

    摘要: An image forming apparatus performing development using light toner of a first color and dark toner of the first color includes a control unit configured to control tone in order to set gradation characteristics of an image developed with the light toner; a determination unit configured to determine whether the gradation characteristics of the light toner image are in a desirable state as a result of the tone control by the control unit; and a shift unit configured to shift an area where mixture of the light toner with the dark toner is started, the area corresponding to the desirable state, responsive to the determination unit determining that the gradation characteristics of the light toner image are not in the desirable state.

    摘要翻译: 使用第一颜色的第一颜色和深色调色剂的调色剂进行显影的图像形成设备包括:控制单元,被配置为控制色调,以设置由所述光调色剂显影的图像的灰度特性; 确定单元,被配置为作为所述控制单元的音调控制的结果,确定所述调色剂图像的灰度特性是否处于期望状态; 以及移动单元,其被配置为响应于所述确定单元确定所述光调色剂图像的灰度特性不是期望的,来移动所述光调色剂与所述暗调色剂的混合的区域,所述区域对应于期望状态; 州。

    Image forming apparatus configured to eject air toward a gap between the top end of a sheet having passed through a nip portion and the circumference of a fixing rotating member of the nip portion
    8.
    发明授权
    Image forming apparatus configured to eject air toward a gap between the top end of a sheet having passed through a nip portion and the circumference of a fixing rotating member of the nip portion 有权
    图像形成装置,被配置为朝向通过夹持部的片材的顶端与夹持部的定影旋转部件的周缘之间的间隙喷射空气

    公开(公告)号:US08346142B2

    公开(公告)日:2013-01-01

    申请号:US12778450

    申请日:2010-05-12

    申请人: Hirokazu Kodama

    发明人: Hirokazu Kodama

    IPC分类号: G03G15/20

    摘要: An image forming apparatus includes an air ejecting portion that ejects air toward a gap between the top end of a sheet having passed through a nip of the heating roller and a pressure roller, and the circumference of the heating roller. The air ejecting portion includes a plurality of air nozzles and a plurality of electromagnetic valves being respectively connected thereto and ejects air selectively from a plurality of air ejection positions arranged in the width direction perpendicular to the sheet conveying direction.

    摘要翻译: 图像形成装置包括:空气喷射部,其朝向已经通过加热辊的辊隙的片材的顶端与加压辊之间的间隙和加热辊的周边排出空气。 空气喷射部分包括多个空气喷嘴和多个电磁阀,分别连接到其上并从与纸张传送方向垂直的宽度方向上布置的多个空气喷射位置选择性地喷出空气。

    IMAGE FORMING APPARATUS
    9.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20110280633A1

    公开(公告)日:2011-11-17

    申请号:US13107801

    申请日:2011-05-13

    IPC分类号: G03G15/01

    摘要: A color image forming apparatus configured to form a combination toner pattern including a second toner image formed downstream in a conveying direction of an intermediate transfer belt on a first toner image and a third toner image formed upstream in the conveying direction of the intermediate transfer belt on the first toner image so that the second and the third toner images cover at least a portion of the first toner image.

    摘要翻译: 一种彩色图像形成装置,被配置为形成组合调色剂图案,其包括在第一调色剂图像上的中间转印带的输送方向下游形成的第二调色剂图像和在中间转印带的输送方向上游形成的第三调色剂图像, 第一调色剂图像使得第二和第三调色剂图像覆盖第一调色剂图像的至少一部分。

    IMAGE FORMING APPARATUS
    10.
    发明申请
    IMAGE FORMING APPARATUS 失效
    图像形成装置

    公开(公告)号:US20080089702A1

    公开(公告)日:2008-04-17

    申请号:US11871630

    申请日:2007-10-12

    IPC分类号: G03G15/04

    CPC分类号: G03G15/0194 G03G2215/0161

    摘要: An image forming apparatus includes a pattern forming unit which forms a light amount adjustment pattern on an image carrier belt, a light amount control unit which controls the amount of light irradiating the image carrier belt and pattern, a detection sensor which detects reflected light amounts from the image carrier belt and pattern with respect to the irradiating light amount and stores the detection results in a storage unit, a calculation unit which calculates the correspondence between the irradiating light amount and the reflected light amounts from the image carrier belt and pattern on the basis of the detection results and stores the calculation results in the storage unit, and a light amount decision unit which decides, on the basis of the calculation results, a light amount at which the difference between the reflected light amounts from the image carrier belt and pattern exhibits a value set in advance.

    摘要翻译: 图像形成装置包括在图像载体带上形成光量调节图案的图案形成单元,控制照射图像载体带和图案的光量的光量控制单元,检测来自 相对于照射光量的图像传送带和图案,并将检测结果存储在存储单元中;计算单元,其基于图像传送带和图案计算照射光量和反射光量之间的对应关系 并将计算结果存储在存储单元中,以及光量决定单元,其基于计算结果确定来自图像传送带和图案的反射光量之间的差异的光量 提前设定一个值。