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1. 发明申请

US20210078813A1 RECORDING MEDIUM DETECTION DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20210078813A1
公开(公告)日：2021-03-18
申请号：US17020220
申请日：2020-09-14
申请人： Konica Minolta, Inc.
发明人： Yumiko Izumiya , Satoshi Ogata , Kazutoshi Yoshimura , Hitoshi Asano , Hirotada Seki , Akimasa Ishikawa , Masashi Sugano , Tsuyoshi Yoneyama , Hiroyuki Maruyama
IPC分类号： B65H5/06 , G03G15/00 , B65H7/14
摘要： Provided is a recording medium detection device which prevents a recording medium from jamming. The device comprises: a first roller and a second roller which nip and transport a recording medium; a roller shaft which rotatably supports the second roller; a shaft support; and a displacement detector. The shaft support supports the roller shaft movably in the thickness direction of the recording medium. The displacement detector detects displacement of the second roller in the thickness direction. The shaft support further supports the second roller movably in the transportation direction of the recording medium through the roller shaft.

2. 发明授权

US10025235B2 Image forming apparatus with power supplies for secondary transfer unit 有权
公开(公告)号：US10025235B2
公开(公告)日：2018-07-17
申请号：US15677715
申请日：2017-08-15
申请人： Konica Minolta, Inc.
发明人： Kenji Tamaki , Kenji Izumiya , Satoshi Ogata , Hidenori Mine , Hirokatsu Kodama
IPC分类号： G03G15/16
摘要： An image forming apparatus includes: an image holder that holds a toner image; a transferer that is disposed opposite to the image holder so as to be in contact with the image holder and transfers the toner image from the image holder onto a recording sheet that is going through a contact part where the transferer contacts the image holder, by applying a transfer voltage between the transferer and the image holder; a first power source that applies a voltage of a first polarity to the image holder; and a second power source that applies a voltage of a second polarity, which is reverse to the first polarity, to the transferer.

3. 发明授权

US09207584B2 Image forming apparatus for controlling a steering operation of an intermediate transfer belt 有权
标题翻译：用于控制中间转印带的转向操作的图像形成装置
公开(公告)号：US09207584B2
公开(公告)日：2015-12-08
申请号：US14035575
申请日：2013-09-24
申请人： KONICA MINOLTA, INC.
发明人： Yumiko Izumiya , Satoshi Ogata , Jun Onishi
IPC分类号： G03G15/01 , G03G15/16
CPC分类号： G03G15/1615 , G03G2215/00156
摘要： An improved image forming apparatus is described which can inhibit the quality of printed images from being degraded. A control unit performs a steering operation to shift an intermediate transfer belt toward a target belt position by controlling the inclination angle of a steering roller. Also, a memory stores the inclination angle of the steering roller in association with the operational states of rotary members facing the intermediate transfer belt. The control unit updates the values stored in the memory with an update value. When the result of detecting the belt edges indicate that the intermediate transfer belt falls in a predetermined range around the target belt position during the steering operation, the control unit determines the update value on the basis of the steering duration time and the inclination angle of the steering roller.
摘要翻译：描述了可以抑制打印图像的质量劣化的改进的图像形成装置。控制单元执行转向操作以通过控制转向辊的倾斜角度将中间转印带朝向目标带位置移动。此外，存储器存储与面向中间转印带的旋转构件的操作状态相关联的转向辊的倾斜角度。控制单元用更新值更新存储在存储器中的值。当检测到皮带边缘的结果指示在转向操作期间中间转印带落在目标皮带位置周围的预定范围内时，控制单元基于转向持续时间和倾斜角度来确定更新值转向辊。

4. 发明授权

US11627234B2 Post-processing device, image forming device, adjustment method for post-processing device, and recording medium 有权
公开(公告)号：US11627234B2
公开(公告)日：2023-04-11
申请号：US17382797
申请日：2021-07-22
申请人： Konica Minolta, Inc.
发明人： Masayuki Watanabe , Hidenori Mine , Satoshi Ogata , Kazutoshi Yoshimura
IPC分类号： H04N1/32 , G06F3/12 , H04N1/00
摘要： A post-processing device includes: multiple types of post-processing modules that are disposed at predetermined installation positions within the post-processing device and each execute post-processing to an output sheet on which an image is formed; and a controller that (i) detects the post-processing modules at the installation positions and (ii) determines and controls adjustment contents of the post-processing modules based on a detection result.

5. 发明授权

US10444689B2 Image forming apparatus and lifetime judgment system 有权
公开(公告)号：US10444689B2
公开(公告)日：2019-10-15
申请号：US16007625
申请日：2018-06-13
申请人： KONICA MINOLTA, INC.
发明人： Satoshi Ogata
IPC分类号： G03G15/20 , G03G15/00
摘要： Disclosed is image forming apparatus, including a first roller and a second roller that conveys the recording sheet by sandwiching the recording sheet in a fixing process of an image forming; a pressing actuator that presses the first roller and the second roller against each other; an actuating motor that actuates the first roller; a brake that applies a brake force to the second roller; a rotation speed detector that detects a rotation speed of the second roller; and a hardware processor that judges a degradation of each surface roughness of the first roller and the second roller in accordance with the rotation speed of the second roller, which is detected when the first roller is actuated in a situation in which the first roller and the second roller are pressed against each other and when the brake applies a predetermined brake force to the second roller.

6. 发明授权

US09897944B2 Image forming apparatus that corrects deviation of a belt member 有权
公开(公告)号：US09897944B2
公开(公告)日：2018-02-20
申请号：US14845732
申请日：2015-09-04
申请人： Konica Minolta, Inc.
发明人： Yumiko Izumiya , Satoshi Ogata
IPC分类号： G03G15/16
CPC分类号： G03G15/1615 , G03G2215/00156
摘要： An image forming apparatus includes: a belt member configured to be rotationally operated at least during performance of a job; an adjustment mechanism configured to adjust the position of the belt member; a detection unit configured to detect the position of the belt member; and a control unit configured to control the adjustment mechanism during performance of a job, and perform steering control for correcting deviation of the belt member, the control unit comparing the position of the belt member at the end of a job, and a determination threshold for determining deviation of the belt member from a belt reference position, and selecting a control mode relating to the steering control, according to a result of the comparison.

7. 发明授权

US09063490B2 Fixing apparatus and image forming apparatus 有权
标题翻译：固定装置和成像装置
公开(公告)号：US09063490B2
公开(公告)日：2015-06-23
申请号：US14470375
申请日：2014-08-27
申请人： KONICA MINOLTA, INC.
发明人： Takeshi Tamada , Satoshi Ogata , Kenji Izumiya , Hiroshi Oyama , Masayuki Watanabe
IPC分类号： G03G15/20 , G03G15/00
CPC分类号： G03G15/2053 , G03G15/50
摘要： A fixing apparatus includes an upper pressure roller, a fixing belt, a lower pressure roller which cooperates with the upper pressure roller and the fixing belt for forming a fixing nip portion which holds and conveys a sheet with a toner image therebetween; a drive motor which rotates the lower pressure roller; a plurality of motors each of which is capable of generating a braking force in the direction to hinder rotation of the upper pressure roller and an assist force in the direction to assist rotation of the upper pressure roller; a torque generation unit which generate an effective braking force in the direction to hinder rotation of the fixing side member as a combination of the braking and assist forces; and a control unit which switches the motor used to generate the braking force among the plurality of motors in accordance with a predetermined condition.
摘要翻译：定影装置包括上压辊，定影带，与上压辊和定影带配合的下压辊，用于形成定影夹持部分，该定影夹持部分保持并输送具有调色剂图像的片材; 旋转下压辊的驱动马达; 多个电动机中的每一个能够产生阻碍上压辊旋转的方向的制动力和帮助上压辊旋转的方向的辅助力; 扭矩产生单元，其在制动和辅助力的组合时沿阻止固定侧构件的旋转的方向产生有效的制动力; 以及控制单元，其根据预定条件在多个电动机之间切换用于产生制动力的电动机。

8. 发明申请

US20140086596A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20140086596A1
公开(公告)日：2014-03-27
申请号：US14035575
申请日：2013-09-24
申请人： KONICA MINOLTA, INC.
发明人： Yumiko IZUMIYA , Satoshi Ogata , Jun Onishi
IPC分类号： G03G15/01 , G03G15/16
CPC分类号： G03G15/1615 , G03G2215/00156
摘要： An improved image forming apparatus is described which can inhibit the quality of printed images from being degraded. A control unit performs a steering operation to shift an intermediate transfer belt toward a target belt position by controlling the inclination angle of a steering roller. Also, a memory stores the inclination angle of the steering roller in association with the operational states of rotary members facing the intermediate transfer belt. The control unit updates the values stored in the memory with an update value. When the result of detecting the belt edges indicate that the intermediate transfer belt falls in a predetermined range around the target belt position during the steering operation, the control unit determines the update value on the basis of the steering duration time and the inclination angle of the steering roller.
摘要翻译：描述了可以抑制打印图像的质量劣化的改进的图像形成装置。控制单元执行转向操作以通过控制转向辊的倾斜角度将中间转印带朝向目标带位置移动。此外，存储器存储与面向中间转印带的旋转构件的操作状态相关联的转向辊的倾斜角度。控制单元用更新值更新存储在存储器中的值。当检测到皮带边缘的结果指示在转向操作期间中间转印带落在目标皮带位置周围的预定范围内时，控制单元基于转向持续时间和倾斜角度确定更新值转向辊。

9. 发明授权

US12030304B2 Conveyance device, image formation apparatus, and image formation system 有权
公开(公告)号：US12030304B2
公开(公告)日：2024-07-09
申请号：US17531312
申请日：2021-11-19
申请人： Konica Minolta, Inc.
发明人： Kazutoshi Yoshimura , Satoshi Ogata , Masayuki Watanabe , Hidenori Mine
IPC分类号： B41J11/00 , B41J11/42 , B41J15/04 , G03G15/00
CPC分类号： B41J11/007 , B41J11/009 , B41J11/42 , B41J15/048 , G03G15/5029 , B41J11/0095 , G03G15/6529
摘要： A conveyance device includes a conveyance path on which a medium is carried; a first detector that detects the medium on the conveyance path and generates first property data; and a hardware processor that acquires the first property data and second property data generated by detecting the medium disposed at a position away from the conveyance path.

10. 发明授权

US11708231B2 Paper sheet sensing device, paper sheet conveying device, and image forming apparatus 有权
公开(公告)号：US11708231B2
公开(公告)日：2023-07-25
申请号：US17242191
申请日：2021-04-27
申请人： Konica Minolta, Inc.
发明人： Kazutoshi Yoshimura , Satoshi Ogata , Masayuki Watanabe , Hidenori Mine
IPC分类号： B65H7/02 , B65H5/06 , B65H7/20
CPC分类号： B65H7/02 , B65H5/062 , B65H7/20 , B65H2511/13
摘要： A paper sheet sensing device includes: a sheet thickness sensor that includes a reference member and a displacement sensor, and senses a sheet thickness of a conveyed recording medium by bringing the reference member into contact with the recording medium and sensing a position of a height of the reference member with the displacement sensor, the position of the height having changed with the recording medium; a first attacher to which the sheet thickness sensor is attached; a conveyor that nips and conveys the recording medium, and is disposed adjacent to the sheet thickness sensor at a predetermined distance equal to or shorter than a length of the recording medium being conveyed, in a conveyance direction of the recording medium; and a displacement preventer that prevents a change in an output of the displacement sensor due to a shift of a relative position of the height of the reference member.

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