公开(公告)号：US20220357687A1

公开(公告)日：2022-11-10

申请号：US17731280

申请日：2022-04-28

申请人： Jumpei YAMAGUCHI ,  Koji KIRYU ,  Masahiro ASHIKAWA ,  Masashi KASAMAI ,  Kanji UBUKATA ,  Nagisa NAKAMURA

发明人： Jumpei YAMAGUCHI ,  Koji KIRYU ,  Masahiro ASHIKAWA ,  Masashi KASAMAI ,  Kanji UBUKATA ,  Nagisa NAKAMURA

IPC分类号： G03G15/16

摘要： An image forming apparatus includes a plurality of image bearers, a plurality of rotation reference position detectors, and circuitry. Each of the plurality of rotation reference position detectors faces a corresponding image bearer of the plurality of image bearers to detect a rotation reference position of the corresponding image bearer. The circuitry performs, before an operation of rotating the plurality of image bearers, alignment control based on a result of detection performed by the plurality of rotation reference position detectors. The alignment control is control of driving of the plurality of image bearers to acquire a given relationship between the respective rotation reference positions of the plurality of image bearers. The circuitry determines whether to perform the alignment control based on whether the operation of rotating the plurality of image bearers is a function maintenance related operation.

公开(公告)号：US20230042229A1

公开(公告)日：2023-02-09

申请号：US17876562

申请日：2022-07-29

申请人： Nagisa NAKAMURA ,  Koji KIRYU ,  Masahiro ASHIKAWA ,  Hiroaki TAKAGI ,  Jumpei YAMAGUCHI ,  Masashi KASAMAI ,  Kanji UBUKATA

发明人： Nagisa NAKAMURA ,  Koji KIRYU ,  Masahiro ASHIKAWA ,  Hiroaki TAKAGI ,  Jumpei YAMAGUCHI ,  Masashi KASAMAI ,  Kanji UBUKATA

IPC分类号： G03G15/16 ,  G03G15/00

摘要： A transfer device includes a plurality of photoconductors, a belt, a plurality of primary transfer rollers and control circuitry. The plurality of primary transfer rollers is disposed for the plurality of photoconductors, respectively. The plurality of primary transfer rollers brings the belt into contact with or separate the belt from the plurality of photoconductors. The control circuitry causes at least one of the plurality of primary transfer rollers to press against a corresponding at least one of the plurality of photoconductors to shift a printing mode.

公开(公告)号：US20110229159A1

公开(公告)日：2011-09-22

申请号：US13048417

申请日：2011-03-15

申请人： Koji KIRYU

发明人： Koji KIRYU

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G2215/00143 ,  G03G2215/0016 ,  G03G2215/0129

摘要： A belt drive apparatus is equipped with an endless belt rotationally movable by being supported by a plurality of rollers. A moving speed signal output part outputs a signal based on a rotational movement of the endless belt. A width direction position signal output part outputs a position signal for which its value changes in response to a position of the endless belt in a direction of width of the endless belt. A width direction position control part controls a position of the endless belt in the direction of width of the endless belt. A process execution part performs a predetermined process using the signal output from the moving speed output part based on the position signal output from the width direction position signal output part.

摘要翻译： 带驱动装置配备有通过多个辊支撑而可旋转移动的环形带。 移动速度信号输出部根据环形带的旋转运动输出信号。 宽度方向位置信号输出部输出响应于环形带在环形带的宽度方向上的位置而改变其值的位置信号。 宽度方向位置控制部分控制环形带在环形带的宽度方向上的位置。 处理执行部分基于从宽度方向位置信号输出部分输出的位置信号，使用从移动速度输出部分输出的信号执行预定处理。