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1. 发明授权

US10042318B2 Electrophotographic image forming apparatus and electricity removing member used in the same 有权
公开(公告)号：US10042318B2
公开(公告)日：2018-08-07
申请号：US15474869
申请日：2017-03-30
申请人： KYOCERA Document Solutions Inc.
发明人： Hiroka Itani , Nariaki Tanaka , Shingo Sakato , Kiyotaka Kobayashi , Takuji Watanabe , Eriko Hayashi
IPC分类号： G03G21/00 , G03G21/06
摘要： An image forming apparatus includes a photoconductor and an electricity removing member electrically grounded and disposed to be in contact with a surface of the photoconductor. In the image forming apparatus, with regard to a capacitance component of an inner impedance of the electricity removing member and a capacitance component of a contact impedance of the electricity removing member that are calculated from a Cole-Cole plot obtained from measurement by an AC impedance method in a predetermined frequency range, a value obtained by dividing the capacitance component of the contact impedance by the capacitance component of the inner impedance is equal to or lower than a predetermined first specific value, and the capacitance component of the inner impedance is equal to or lower than a predetermined second specific value.

2. 发明授权

US09229393B2 Fixing device configured to fix a toner image onto a recording medium and image forming apparatus including the same 有权
标题翻译：配置成将调色剂图像固定在记录介质上的定影装置和包括该定影装置的图像形成装置
公开(公告)号：US09229393B2
公开(公告)日：2016-01-05
申请号：US14629960
申请日：2015-02-24
申请人： KYOCERA Document Solutions Inc.
发明人： Yoshiharu Kanematsu , Yoshihiro Yamagishi , Takashi Eiki , Takefumi Yotsutsuji , Eriko Hayashi , Hironori Takahashi
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2028 , G03G2215/2038
摘要： A fixing device includes a fixing belt, a pressuring member, a pressing member and a sheet member. The fixing belt is arranged rotatably and configured to extend along an axis direction. The pressuring member is arranged rotatably and configured to come into pressure contact with the fixing belt so as to form a fixing nip. The pressing member is configured to press the fixing belt to a side of the pressuring member and configured such that the fixing belt is interposed between the pressing member and the pressuring member. The sheet member is formed in a tubular shape and provided around the pressing member and configured to rotate with rotation of the fixing belt.
摘要翻译：定影装置包括定影带，加压构件，按压构件和片构件。定影带可旋转地设置成沿着轴线方向延伸。加压构件可旋转地配置成与定影带压力接触，以形成定影夹持部。按压构件被构造成将定影带按压到加压构件的一侧，并且构造成使得定影带介于按压构件和加压构件之间。片状部件形成为管状，并设置在按压部件的周围，构成为随着定影带的旋转而旋转。

3. 发明申请

US20190072894A1 ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND ELECTRICITY REMOVING MEMBER USED IN IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20190072894A1
公开(公告)日：2019-03-07
申请号：US16081152
申请日：2018-01-12
申请人： KYOCERA Document Solutions Inc.
发明人： Shingo Sakato , Nariaki Tanaka , Kiyotaka Kobayashi , Hiroka Itani , Takuji Watanabe , Eriko Hayashi
IPC分类号： G03G21/06 , G03G15/00
摘要： In an image forming apparatus, a resistance component of an inner impedance of an electricity removing member is equal to or lower than a value that is obtained by multiplying a calculated resistance value by a first specific value, the calculated resistance value being calculated based on a predetermined formula as a DC resistance value of the electricity removing member that is required to reduce a pre-electricity-removal potential of a photoconductor to a predetermined post-electricity-removal potential during an electricity removal time, the first specific value being calculated based on a ratio of a linear speed of the electricity removing member to a linear speed of the photoconductor, and a resistance component of the contact impedance of the electricity removing member is equal to or lower than a value that is obtained by multiplying the calculated resistance value by a second specific value that is calculated based on the ratio.

4. 发明授权

US09851664B2 Fixing device 有权
公开(公告)号：US09851664B2
公开(公告)日：2017-12-26
申请号：US15165444
申请日：2016-05-26
申请人： KYOCERA Document Solutions Inc.
发明人： Yoshiharu Kanematsu , Eriko Hayashi
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2064 , G03G2215/00151 , G03G2215/2061 , G03G2215/2067
摘要： A fixing device includes a cylindrical heat roller, a heating element, a pressure roller, and an auxiliary roller. The heating element is provided inside the heat roller and configured to apply heat to the heat roller. The pressure roller is configured to be pressed against the heat roller to form, with the heat roller, a nip area where a recording paper sheet is to be nipped. The auxiliary roller is provided inside the heat roller and configured to be pressed toward the pressure roller with a peripheral wall of the heat roller in between. An outer peripheral surface of the auxiliary roller pressed against an inner peripheral surface of the heat roller is formed into an inverted crown shape so that an outside diameter of the auxiliary roller gradually decreases from both axial ends of the auxiliary roller toward an axial center thereof.

5. 发明授权

US09042795B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09042795B2
公开(公告)日：2015-05-26
申请号：US14010822
申请日：2013-08-27
申请人： KYOCERA Document Solutions Inc.
发明人： Eriko Hayashi
IPC分类号： G03G15/16 , G03G15/00
CPC分类号： G03G15/163 , G03G15/1675 , G03G15/6535 , G03G15/657
摘要： A transfer bias voltage supplier supplies, to a transfer member, a transfer bias voltage of a polarity opposite to the polarity of toner. The absolute value of transfer bias voltage to be supplied to the transfer member when a leading/trailing end of the sheet is passed through the nip portion is set smaller than when a toner image transfer region of the sheet is passed through the nip portion. A separation bias voltage supplier supplies, to a discharging electrode member, a separation bias voltage of a polarity opposite to the polarity of transfer bias voltage. The absolute value of separation bias voltage to be supplied to the discharging electrode member when the leading/trailing end of the sheet is passed through a discharging gap is set smaller than when the transfer region is passed through the discharging gap.
摘要翻译：转移偏压供应器向转印构件提供极性与调色剂极性相反的转印偏压。当片材的前端/尾端通过夹持部时，要传递给转印部件的转印偏压的绝对值设定得小于片材的调色剂图像转印区域通过夹持部时的绝对值。分离偏置电压供给器向放电电极构件提供极性与转印偏压的极性相反的分离偏置电压。当片材的前端/尾端通过放电间隙时，提供给放电电极部件的分离偏置电压的绝对值设定为小于当转印区域通过放电间隙时的绝对值。

6. 发明授权

US10310441B2 Electrophotographic image forming apparatus, and electricity removing member used in image forming apparatus 有权
公开(公告)号：US10310441B2
公开(公告)日：2019-06-04
申请号：US16081152
申请日：2018-01-12
申请人： KYOCERA Document Solutions Inc.
发明人： Shingo Sakato , Nariaki Tanaka , Kiyotaka Kobayashi , Hiroka Itani , Takuji Watanabe , Eriko Hayashi
IPC分类号： G03G21/06 , G03G15/00 , G03G15/02
摘要： In an image forming apparatus, a resistance component of an inner impedance of an electricity removing member is equal to or lower than a value that is obtained by multiplying a calculated resistance value by a first specific value, the calculated resistance value being calculated based on a predetermined formula as a DC resistance value of the electricity removing member that is required to reduce a pre-electricity-removal potential of a photoconductor to a predetermined post-electricity-removal potential during an electricity removal time, the first specific value being calculated based on a ratio of a linear speed of the electricity removing member to a linear speed of the photoconductor, and a resistance component of the contact impedance of the electricity removing member is equal to or lower than a value that is obtained by multiplying the calculated resistance value by a second specific value that is calculated based on the ratio.

7. 发明授权

US10248056B2 Fixing device and image forming apparatus 有权
公开(公告)号：US10248056B2
公开(公告)日：2019-04-02
申请号：US16107224
申请日：2018-08-21
申请人： KYOCERA Document Solutions Inc.
发明人： Eriko Hayashi , Ryohei Tokunaga , Tatsuya Yamanaka , Takashi Kainuma
IPC分类号： G03G15/20
摘要： A fixing device includes a fixing member, a pressuring member and a temperature sensing part. The fixing member heated by a heat source contacts with a recording medium to heat a toner image on the recording medium. The pressuring member pressures the recording medium to the fixing member. The temperature sensing part in non-contact with the fixing member includes an infrared sensing element sensing infrared rays from the fixing member and a condensing member condensing the infrared rays to the infrared sensing element. Detection temperature of the fixing member is calculated with a sensing value by the infrared sensing element. The detection temperature or control temperature of the heat source is corrected with temperature deference between the infrared sensing element and the condensing member. Heating of the fixing member is controlled with the corrected detection temperature and the control temperature or the detection temperature and the corrected control temperature.

8. 发明授权

US09335691B2 Fixing device and image forming apparatus 有权
标题翻译：固定装置和成像装置
公开(公告)号：US09335691B2
公开(公告)日：2016-05-10
申请号：US14721685
申请日：2015-05-26
申请人： KYOCERA Document Solutions Inc.
发明人： Yoshihiro Yamagishi , Yoshiharu Kanematsu , Takashi Eiki , Hironori Takahashi , Takefumi Yotsutsuji , Eriko Hayashi
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2039 , G03G15/2053 , G03G2215/2035
摘要： A fixing device includes a fixing belt, a pressuring member, a pressing member and a temperature sensor. The fixing belt is arranged rotatably. The pressuring member is arranged rotatably and configured to come into pressure contact with the fixing belt so as to form a fixing nip. The pressing member is configured to press the fixing belt to the pressuring member side. The temperature sensor is inserted into the pressing member. The pressing member has a through hole penetrating from a face at the fixing nip side to an insertion part of the temperature sensor.
摘要翻译：定影装置包括定影带，加压构件，按压构件和温度传感器。定影带可旋转地布置。加压构件可旋转地配置成与定影带压力接触，以形成定影夹持部。按压构件被构造成将定影带按压到加压构件侧。温度传感器插入按压部件。按压部件具有从定影辊隙侧的面向温度传感器的插入部贯穿的贯通孔。

9. 发明申请

US20170285506A1 ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND ELECTRICITY REMOVING MEMBER USED IN THE SAME 审中-公开
公开(公告)号：US20170285506A1
公开(公告)日：2017-10-05
申请号：US15474869
申请日：2017-03-30
申请人： KYOCERA Document Solutions Inc.
发明人： Hiroka Itani , Nariaki Tanaka , Shingo Sakato , Kiyotaka Kobayashi , Takuji Watanabe , Eriko Hayashi
IPC分类号： G03G21/00
CPC分类号： G03G21/06
摘要： An image forming apparatus includes a photoconductor and an electricity removing member electrically grounded and disposed to be in contact with a surface of the photoconductor. In the image forming apparatus, with regard to a capacitance component of an inner impedance of the electricity removing member and a capacitance component of a contact impedance of the electricity removing member that are calculated from a Cole-Cole plot obtained from measurement by an AC impedance method in a predetermined frequency range, a value obtained by dividing the capacitance component of the contact impedance by the capacitance component of the inner impedance is equal to or lower than a predetermined first specific value, and the capacitance component of the inner impedance is equal to or lower than a predetermined second specific value.

10. 发明授权

US09639044B2 Fixing device that restrains damage of belt member and image forming apparatus including the same 有权
公开(公告)号：US09639044B2
公开(公告)日：2017-05-02
申请号：US15160552
申请日：2016-05-20
申请人： KYOCERA Document Solutions Inc.
发明人： Eriko Hayashi , Yoshiharu Kanematsu
IPC分类号： G03G15/20
CPC分类号： G03G15/2057 , G03G15/2053 , G03G2215/2035
摘要： A fixing device includes a housing, a belt member, a pressure roller, a nip forming member, and a pressing member. The belt member is constituted of a flexible tubular shape. The nip forming member is located at an inner peripheral portion of the belt member. The nip forming member has an opposed surface along an outer peripheral surface of the pressure roller. The nip forming member presses the belt member to the pressure roller. An end portion of the outer peripheral surface of the pressure roller is located inside with respect to an end portion of the belt member. The fixing device includes a pressing member located opposed to the pressure roller in the axial direction. The pressing member presses an outer peripheral surface of the end portion of the belt member in the axial direction to radially inward of the belt member.

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