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1. 发明授权

US11054761B2 Image forming apparatus and method of controlling the same 有权
公开(公告)号：US11054761B2
公开(公告)日：2021-07-06
申请号：US16844843
申请日：2020-04-09
申请人： Konica Minolta Inc.
发明人： Yan Shen , Hideo Yamaki , Futoshi Okazaki , Yasuyuki Inada , Takahiro Kuroda , Yu Mukobayashi , Yoshitaka Nomura , Motoki Nakano
IPC分类号： G03G15/08 , G03G15/00
摘要： An image forming apparatus includes: a job acquirer that acquires a print job; a photoconductor including a surface on which a toner image is to be formed; an electrifying member that electrifies the photoconductor; an exposure member that exposes the photoconductor; a developing member that supplies toner to the photoconductor; a cleaner that cleans the photoconductor; and a controller connected to the job acquirer to control the image forming apparatus, wherein the controller computes a first non-toner region that is provided on the surface of the photoconductor when the toner image is formed on the photoconductor, the first non-toner region not containing toner in a longitudinal direction of the surface of the photoconductor, and the controller causes the exposure member and the developing member to form the toner image on the photoconductor and to form a set of toner patches in the first non-toner region.

2. 发明授权

US09195213B2 Image forming apparatus including fan to generate air flow in conveyance path in sheet conveyance direction 有权
标题翻译：图像形成装置包括风扇，以在纸张输送方向上的输送路径中产生空气流
公开(公告)号：US09195213B2
公开(公告)日：2015-11-24
申请号：US14309734
申请日：2014-06-19
申请人： KONICA MINOLTA, INC.
发明人： Kazuyoshi Hara , Hidetoshi Noguchi , Satoru Shibuya , Takahiro Kuroda
IPC分类号： G03G15/00 , G03G21/20
CPC分类号： G03G21/206 , G03G15/6573 , G03G2215/00679
摘要： An image forming apparatus includes an image carrier configured to carry a toner image. A transfer unit is configured to transfer the toner image on the image carrier onto a recording sheet. A fixing unit is configured to fix the toner image transferred at the transfer unit onto the recording sheet. Through a conveyance path, the recording sheet is conveyed from the transfer unit to the fixing unit. A conveyance guide member is disposed in the conveyance path on an image formation surface side of the recording sheet. A fan is configured to send air from the transfer unit to the conveyance path toward a gap defined between the conveyance guide member and the transfer unit so as to form a flow of air in the conveyance path from an upstream side to a downstream side in a conveyance direction of the recording sheet.
摘要翻译：图像形成装置包括构造成承载调色剂图像的图像载体。传送单元被配置为将图像载体上的调色剂图像转印到记录片材上。固定单元构造成将转印单元上转印的调色剂图像固定在记录纸上。通过输送路径，记录纸从传送单元传送到定影单元。输送引导构件设置在记录纸的图像形成表面侧上的输送路径中。风扇被构造成将空气从传送单元传送到输送路径，朝向在输送引导构件和转印单元之间限定的间隙，从而在输送路径中形成从上游侧到下游侧的空气流记录纸的输送方向。

3. 发明授权

US09091968B2 Image forming apparatus having transfer bias control 有权
标题翻译：具有转印偏压控制的图像形成装置
公开(公告)号：US09091968B2
公开(公告)日：2015-07-28
申请号：US13887954
申请日：2013-05-06
申请人： Konica Minolta, Inc.
发明人： Kazuyoshi Hara , Takahiro Kuroda , Hidetoshi Noguchi , Satoru Shibuya
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/1675
摘要： An image forming apparatus having: an image support that supports a toner image; a transfer member adapted to sandwich with the transfer member and the image support; a voltage application unit that applies a transfer bias voltage to the transfer member; a current detecting unit that detects transfer current flowing from the voltage application unit to the transfer material after transfer processing on the transfer material starts; and a control unit that sets an upper limit of transfer current on the basis of a value of the transfer current detected by the current detecting unit, and thereafter further acquires a transfer current value from the current detecting unit to control a transfer bias voltage generated by the voltage application unit, such that the transfer current value during transfer does not exceed the upper limit.
摘要翻译：一种图像形成装置，具有：支撑调色剂图像的图像支持体; 转印构件，其适于与所述转印构件和所述图像载体夹层; 电压施加单元，向转印构件施加转印偏压; 电流检测单元检测在转印材料的转印处理之后开始从电压施加单元向转印材料流动的转印电流; 以及控制单元，其基于由电流检测单元检测到的转移电流的值来设定转移电流的上限，然后进一步从电流检测单元获取转移电流值，以控制由电压施加单元，使得转印期间的转印电流值不超过上限。

4. 发明申请

US20130294792A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20130294792A1
公开(公告)日：2013-11-07
申请号：US13887954
申请日：2013-05-06
申请人： KONICA MINOLTA, INC.
发明人： Kazuyoshi HARA , Takahiro Kuroda , Hidetoshi Noguchi , Satoru Shibuya
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/1675
摘要： An image forming apparatus having: an image support that supports a toner image; a transfer member adapted to sandwich with the transfer member and the image support; a voltage application unit that applies a transfer bias voltage to the transfer member; a current detecting unit that detects transfer current flowing from the voltage application unit to the transfer material after transfer processing on the transfer material starts; and a control unit that sets an upper limit of transfer current on the basis of a value of the transfer current detected by the current detecting unit, and thereafter further acquires a transfer current value from the current detecting unit to control a transfer bias voltage generated by the voltage application unit, such that the transfer current value during transfer does not exceed the upper limit.
摘要翻译：一种图像形成装置，具有：支撑调色剂图像的图像支持体; 转印构件，其适于与所述转印构件和所述图像载体夹层; 电压施加单元，向转印构件施加转印偏压; 电流检测单元检测在转印材料的转印处理之后开始从电压施加单元向转印材料流动的转印电流; 以及控制单元，其基于由电流检测单元检测到的转移电流的值来设定转移电流的上限，然后进一步从电流检测单元获取转移电流值，以控制由电压施加单元，使得转印期间的转印电流值不超过上限。

5. 发明授权

US09841707B2 Image forming apparatus, control method, and control program in which a magnitude of a current to flow in a paper sheet at the time of toner image transfer can be set 有权
公开(公告)号：US09841707B2
公开(公告)日：2017-12-12
申请号：US15377413
申请日：2016-12-13
申请人： Konica Minolta, Inc.
发明人： Takahiro Kuroda , Kanji Nakayama , Kohei Hayashi , Tatsutoshi Yamada
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/1605 , G03G15/1675 , G03G2215/0132
摘要： An image forming apparatus includes: an image carrier configured to carry a toner image; a transfer member configured to transfer the toner image onto a transfer target member by applying a transfer voltage of the opposite polarity of the polarity of the toner image to the transfer target member, the transfer member being in contact with the image carrier; an accepting unit configured to accept a setting for changing a preset current range to a new current range, the preset current range being defined by one of a lower limit of a current flowing in the transfer target member and an upper limit of the current; a sensing unit configured to sense a magnitude of the current flowing in the transfer target member; and a control device configured to control the transfer voltage so that the magnitude of the sensed current falls within the new current range.

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