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1. 发明申请

US20180356762A1 IMAGE FORMING APPARTUS AND CONTROL METHOD 审中-公开
公开(公告)号：US20180356762A1
公开(公告)日：2018-12-13
申请号：US15997821
申请日：2018-06-05
申请人： Konica Minolta, Inc.
发明人： Takahiro Okubo , Yasuo Shiokawa , Yoshiteru Kawakami
IPC分类号： G03G15/00
CPC分类号： G03G15/6561 , G03G15/5054
摘要： An image forming apparatus that highly precisely suppresses misregistration of an image relative to a sheet due to sub-scanning skew and a control method are provided. The image forming apparatus includes: displacement rollers including at least a pair of rollers conveying a sheet that is being conveyed, toward a transfer section; a detection section that detects a position of a side end part of the sheet; and a hardware processor that performs processing for displacing the displacement rollers based on displacement control information and correcting the displacement control information for next and subsequent sheets based on a detection result of detection by the detection section after the displacement of the displacement rollers.

2. 发明申请

US20160159594A1 IMAGE-FORMING APPARATUS THAT FORMS IMAGE ON LONG SHEET 有权
标题翻译：形成长形图像的图像形成装置
公开(公告)号：US20160159594A1
公开(公告)日：2016-06-09
申请号：US14964064
申请日：2015-12-09
申请人： Konica Minolta, Inc.
发明人： Yasuo Shiokawa , Akihiko Kakita , Takahiro Okubo
IPC分类号： B65H5/06 , B65H1/04
CPC分类号： B65H5/062 , B65H1/04 , B65H7/02 , B65H2405/324 , B65H2407/21 , B65H2511/11 , B65H2513/10 , B65H2513/108 , B65H2701/11312 , G03G15/50 , G03G15/6514 , G03G15/6594 , G03G2215/00949 , B65H2220/02 , B65H2220/01
摘要： An image-forming apparatus contains an external feeding tray on which a sheet is put, and a feeding roller and a sheet feeder that feed the sheet from the external feeding tray. A controller of the image-forming apparatus sets a first conveying speed and a second conveying speed that is slower than the first conveying speed, controls the sheet feeder to convey a second sheet, which has a longer length along a conveying direction thereof than the length of the external feeding tray, at the second conveying speed when the controller determines that a rear end of the second sheet projects from the external feeding tray, and hangs down from the external feeding tray based on the sheet information and controls a first sheet, which has a shorter length along a conveying direction thereof than the length of the external feeding tray, at the first conveying speed.
摘要翻译：图像形成装置包括放置纸张的外部进料盘，以及从外部进料盘进给纸张的进给辊和送纸器。图像形成装置的控制器设定比第一输送速度慢的第一输送速度和第二输送速度，控制供纸器输送沿着其输送方向具有比长度长的长度的第二纸张在第二输送速度下，当控制器确定第二片材的后端从外部进料盘突出时，并且基于纸张信息从外部进料盘悬挂下来，并且控制第一片材，在第一输送速度下沿其输送方向具有比外部进料盘的长度更短的长度。

3. 发明授权

US10577206B2 Image forming apparatus and conveyance control method 有权
公开(公告)号：US10577206B2
公开(公告)日：2020-03-03
申请号：US16026161
申请日：2018-07-03
申请人： KONICA MINOLTA, INC.
发明人： Takahiro Okubo , Yasuo Shiokawa , Yoshiteru Kawakami
IPC分类号： B65H9/00 , B65H5/06 , B65H9/20 , G03G15/00 , B65H29/68
摘要： An image forming apparatus includes: a transfer section that transfers an image onto a sheet; a sheet conveying member that conveys the sheet, the sheet conveying member being provided upstream of the transfer section in a sheet conveyance direction; and a hardware processor that controls displacement of the sheet conveying member so that the sheet is displaced along a width direction of the sheet. The hardware processor sets a displacement speed of the sheet conveying member for the sheet during transfer of the image by the transfer section to be lower than the displacement speed of the sheet conveying member for the sheet before the transfer of the image by the transfer section.

4. 发明授权

US10214372B2 Sheet feeder device and image forming apparatus 有权
公开(公告)号：US10214372B2
公开(公告)日：2019-02-26
申请号：US15698050
申请日：2017-09-07
申请人： Konica Minolta, Inc.
发明人： Takahiro Okubo , Yasuo Shiokawa
IPC分类号： B65H1/14 , B65H3/06 , B65H1/26 , B65H7/20
摘要： A sheet feeder device includes: a pickup roller that separates paper sheets placed on a manual feed tray from one another, and transfers a paper sheet; a pair of sheet feed rollers that include an upper feed roller and a lower feed roller, form a sheet nip portion when the upper feed roller and the lower feed roller are pressed against each other, and transfer the paper sheet transferred from the pickup roller; a top edge vibrator that vibrates a top edge of the paper sheet, the top edge vibrator being located on an upstream side of the pair of sheet feed rollers; and a hardware processor that controls sheet feeding of the paper sheets placed on the manual feed tray, wherein, when a predetermined condition is satisfied in the sheet feeding, the hardware processor controls the top edge vibrator, to vibrate the top edge of the paper sheet.

5. 发明授权

US09671741B2 Image forming apparatus 有权
公开(公告)号：US09671741B2
公开(公告)日：2017-06-06
申请号：US14671044
申请日：2015-03-27
申请人： Konica Minolta, Inc.
发明人： Masahiro Matsuo , Takahiro Okubo , Akihiko Kakita
IPC分类号： G03G15/00 , B65H7/06 , B65H7/20 , B65H5/26
CPC分类号： G03G15/70 , B65H5/26 , B65H7/06 , B65H7/20 , G03G15/5012
摘要： An image forming apparatus includes: an image forming section that electrophotographically forms an image on a sheet; and a sheet feeding path including a first sheet feeding path that conveys a sheet to the image forming section, and a second sheet feeding path provided continuously with the first sheet feeding path. Unjamming is allowed to be performed by separating the apparatus at a boundary between the first sheet feeding path and the second sheet feeding path, and by pulling out the first sheet feeding path. The apparatus further includes: a jam detection section that detects an occurrence of a jam in the sheet feeding path; and a jam clearing section that determines a procedure for unjamming in accordance with a state of a sheet on the sheet feeding path when a jam occurs, and the jam clearing section makes a request to perform unjamming according to a determined procedure.

6. 发明授权

US09205685B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09205685B2
公开(公告)日：2015-12-08
申请号：US14080172
申请日：2013-11-14
申请人： Konica Minolta, Inc.
发明人： Ken Nonaka , Takahiro Okubo , Yusuke Kawanago
IPC分类号： B41F1/34 , B41J13/26 , B41J3/60 , B41J11/00
CPC分类号： B41J13/26 , B41J3/60 , B41J11/0095
摘要： An image forming apparatus includes a notification section that provides information to a user; a sheet feeding section that feeds a sheet; an image forming section that forms an image on a sheet; a first conveyance section that conveys a sheet fed from the sheet feeding section to the image forming section; a displacement detection section that detects a displacement of a sheet in the first conveyance section; a displacement correction section that corrects a lateral position of a sheet on the basis of a result of detection by the displacement detection section; and a control section that controls the notification section to notify an occurrence of a displacement error which cannot be corrected by the displacement correction section and a cause of the displacement error when the displacement error is detected by the displacement detection section.
摘要翻译：图像形成装置包括向用户提供信息的通知部分; 供给片材的片材供给部; 图像形成部，其在片材上形成图像; 第一传送部，其将从所述片材供给部供给到所述图像形成部的片材传送; 位移检测部，其检测所述第一输送部中的纸张的位移; 位移校正部，其基于位移检测部的检测结果来校正纸张的横向位置; 以及控制部，其控制通知部，通知位移校正部不能校正的位移误差的发生和位移检测部检测出位移误差时的位移误差的原因。

7. 发明授权

US11802015B2 Image forming apparatus 有权
公开(公告)号：US11802015B2
公开(公告)日：2023-10-31
申请号：US17370465
申请日：2021-07-08
申请人： Konica Minolta, Inc.
发明人： Takahiro Okubo
IPC分类号： B65H5/36 , B65H5/26 , G03G15/00 , B65H85/00
CPC分类号： B65H5/36 , B65H5/26 , B65H85/00 , G03G15/6529 , B65H2407/21
摘要： An image forming apparatus includes: as a conveyance to convey an object formed with an image, an upstream-side conveyance path; an intermediate conveyance path connected to a downstream end part of the upstream-side conveyance path via a first bent part; and a downstream-side conveyance path connected to the intermediate conveyance path via a second bent part, wherein the second bent part is bent to a side opposite to the first bent part, on an inner side of a bend of the first bent part, a friction reducing part capable of abutting with the object conveyed in the first bent part is provided, and the intermediate conveyance path includes: a pair of guide parts forming the intermediate conveyance path; and a friction reducing part that is provided on both a pair of the guide parts and is capable of abutting with the object conveyed between a pair of the guide parts.

8. 发明授权

US10705473B2 Image forming apparatus and conveyance control method 有权
公开(公告)号：US10705473B2
公开(公告)日：2020-07-07
申请号：US15889689
申请日：2018-02-06
申请人： Konica Minolta, Inc.
发明人： Yoshiteru Kawakami , Yasuo Shiokawa , Takahiro Okubo
IPC分类号： G03G15/00 , B65H7/20 , B65H5/06
摘要： An image forming apparatus includes: a transferer that forms a transfer nip for transferring an image to a sheet; a conveyance roller pair disposed on an upstream side relative to the transfer nip in a conveyance direction of the sheet; and a hardware processor that controls the conveyance roller pair such that the sheet conveyed to a conveyance nip formed by the conveyance roller pair is conveyed with a predetermined nip pressure so as to cause slack in the sheet between the transfer nip and the conveyance nip in which the hardware processor controls the conveyance roller pair so as to reduce the nip pressure at the conveyance nip in accordance with an increase in a conveyance amount of the sheet at the conveyance nip.

9. 发明授权

US10609235B2 Image forming apparatus for double-sided conveyance 有权
公开(公告)号：US10609235B2
公开(公告)日：2020-03-31
申请号：US16005838
申请日：2018-06-12
申请人： KONICA MINOLTA, INC.
发明人： Yasuo Shiokawa , Yoshiteru Kawakami , Takahiro Okubo
IPC分类号： H04N1/00 , G03G15/20 , G03G15/16 , G03G15/23
摘要： An image forming apparatus includes an image former forming a toner image on a long sheet; a main conveyance path conveying the long sheet to the image former; and a double-side conveyance path which branches off from a first side, in the main conveyance path, downstream of the image former in a conveyance direction of the long sheet, and which conveys the long sheet to a second side upstream of the image former by reversing the conveyance direction at a point of switching back to invert the long sheet. The double-side conveyance path includes, in a downstream side in the conveyance direction before the switching back, a merging pathway connected to the second side upstream of the image former in the main conveyance path, and a first introducer introducing into the merging pathway a head of the long sheet in the conveyance direction before the switching back.

10. 发明授权

US10514653B2 Image forming apparatus and image forming control method 有权
公开(公告)号：US10514653B2
公开(公告)日：2019-12-24
申请号：US16291379
申请日：2019-03-04
申请人： Konica Minolta, Inc.
发明人： Yoshiteru Kawakami , Yasuo Shiokawa , Takahiro Okubo
IPC分类号： G03G21/00 , G03G15/00
摘要： An image forming apparatus includes: a lubricant supply section that supplies a lubricant of a lubricant rod extending along an axial direction of an image bearing member onto the image bearing member; and a hardware processor that controls displacement of a sheet conveyance member so as to displace a sheet along a width direction of the sheet. The hardware processor performs control of changing a position in the axial direction of the toner image formed on the image bearing member on the basis of a distribution status of a toner in the axial direction in a toner image formed on the image bearing member, and controls displacement of the sheet conveyance member after a tip end of the sheet in the conveyance direction enters the transfer section so that a sheet position in a width direction of an image transferred onto the sheet is correct in the transfer section.

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