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公开(公告)号：US09811036B2
公开(公告)日：2017-11-07
申请号：US15269093
申请日：2016-09-19
申请人： Junpei Fujita , Kenji Sugiura , Yuuji Wada , Hiroyoshi Haga , Seiichi Kogure , Naohiro Kumagai , Kazuki Yogosawa
发明人： Junpei Fujita , Kenji Sugiura , Yuuji Wada , Hiroyoshi Haga , Seiichi Kogure , Naohiro Kumagai , Kazuki Yogosawa
CPC分类号： G03G15/5054 , G03G15/1615 , G03G15/162
摘要： An endless rotatable belt device including an endless rotatable belt, a scale tape bonded on the belt, at least one optical sensor to detect a scale pattern, and auxiliary tape to cover at least one of the first end and the second end of the scale tape of the belt. The scale tape has a first end and a second end and includes at least one scale pattern. The auxiliary tape has a lower surface friction coefficient than the surface friction coefficient of the scale tape.
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公开(公告)号：US20160216647A1
公开(公告)日：2016-07-28
申请号：US15003239
申请日：2016-01-21
申请人： Kazuki Yogosawa , Mitsuru Takahashi , Hiroyoshi Haga , Kenji Sugiura , Naohiro Kumagai , Seiichi Kogure , Kenji Sengoku , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Tatsuya Ohsugi
发明人： Kazuki Yogosawa , Mitsuru Takahashi , Hiroyoshi Haga , Kenji Sugiura , Naohiro Kumagai , Seiichi Kogure , Kenji Sengoku , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Tatsuya Ohsugi
CPC分类号： G03G15/161 , B08B1/002 , B08B1/007 , B08B1/02 , B08B1/04 , B08B6/00 , G03G21/0035 , G03G21/0058 , G03G21/0076 , G03G2215/0129 , G03G2221/001
摘要： A cleaning device includes an upstream cleaner, an upstream cleaner, and a collection member. The upstream cleaner is configured to remove toner from a surface of a cleaning target. The downstream cleaner is disposed downstream from the upstream cleaner in a direction of movement of the surface of the cleaning target. The downstream cleaner is configured to remove toner from the surface of the cleaning target. The collection member is configured to collect toner from the downstream cleaner.
摘要翻译： 清洁装置包括上游清洁器，上游清洁器和收集构件。 上游清洁器被配置为从清洁目标的表面去除调色剂。 下游清洁器在清洁对象表面的移动方向上设置在上游清洁器的下游。 下游清洁器构造成从清洁对象的表面去除调色剂。 收集构件构造成从下游清洁器收集调色剂。
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公开(公告)号：US09720355B2
公开(公告)日：2017-08-01
申请号：US15265562
申请日：2016-09-14
申请人： Tatsuya Ohsugi , Kenji Sugiura , Jyunya Sakuraba , Hirokazu Ishii , Toshitaka Yamaguchi , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Shinya Tanaka , Masayoshi Nakayama
发明人： Tatsuya Ohsugi , Kenji Sugiura , Jyunya Sakuraba , Hirokazu Ishii , Toshitaka Yamaguchi , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Shinya Tanaka , Masayoshi Nakayama
CPC分类号： G03G15/1675 , G03G15/1605 , G03G15/162 , G03G15/1665 , G03G15/1685
摘要： An image forming apparatus includes an image bearer, a transfer member, and a power source. The image bearer includes a plurality of layers. The transfer member forms a transfer nip between the image bearer and the transfer member. The power source outputs a transfer bias to transfer a toner image from the image bearer onto a recording sheet in the transfer nip. The transfer bias alternates between a transfer-side bias that causes the toner image to move from the image bearer to the recording sheet, and an opposite-side bias different from the transfer-side bias. A duty ratio of a time period, during which the opposite-side bias is output, relative to one cycle of a waveform, is greater than 50%.
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公开(公告)号：US09817341B2
公开(公告)日：2017-11-14
申请号：US15073983
申请日：2016-03-18
申请人： Tatsuya Ohsugi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Naoto Kochi
发明人： Tatsuya Ohsugi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Naoto Kochi
CPC分类号： G03G15/1665 , G03G15/1605 , G03G15/1675 , G03G2215/0129 , G03G2215/1623
摘要： An image forming apparatus includes a plurality of image bearers, a transfer bias member, and a power source. When the transfer bias member transfers a color toner image onto a recording sheet, a second peak value of a peak-to-peak of a transfer bias, which is smaller than a first peak value of the peak-to-peak in an electrostatic force to move toner from the image bearers or an intermediate transfer body to the recording sheet, is zero or has a first polarity to generate the electrostatic force in a transfer direction to move toner from the image bearers or the intermediate transfer body to the recording sheet. When the transfer bias member transfers a monochromatic toner image including only black toner onto the recording sheet, the second peak value is zero or has a second polarity to generate an electrostatic force in an opposite direction to the transfer direction.
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公开(公告)号：US09632461B2
公开(公告)日：2017-04-25
申请号：US14956707
申请日：2015-12-02
申请人： Kenji Sugiura , Toshitaka Yamaguchi , Hiroyoshi Haga , Hirokazu Ishii , Shinya Tanaka , Takehide Mizutani , Yuuji Wada , Tatsuya Ohsugi , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa
发明人： Kenji Sugiura , Toshitaka Yamaguchi , Hiroyoshi Haga , Hirokazu Ishii , Shinya Tanaka , Takehide Mizutani , Yuuji Wada , Tatsuya Ohsugi , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa
CPC分类号： G03G15/1665 , G03G15/1675 , G03G21/20
摘要： An image forming apparatus includes an image bearer, a toner image forming device, a nip forming device, a power source, a controller, and a temperature-and-humidity detector. The toner image forming device forms a toner image on the image bearer. The nip forming device contacts the image bearer to form a transfer nip. The power source outputs a transfer bias, in which an alternating current component is superimposed on a direct current component, to transfer the toner image onto a recording medium interposed in the transfer nip. The temperature-and-humidity detector detects a temperature and humidity. The controller controls the power source to output the transfer bias including the direct current component with a smaller absolute value as at least one of the detected temperature and humidity increases.
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公开(公告)号：US09835987B2
公开(公告)日：2017-12-05
申请号：US15065600
申请日：2016-03-09
申请人： Kenji Sugiura , Hiroyoshi Haga , Hirokazu Ishii , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Takehide Mizutani , Yuuji Wada , Naoto Kochi , Tatsuya Ohsugi , Kazuki Yogosawa
发明人： Kenji Sugiura , Hiroyoshi Haga , Hirokazu Ishii , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Takehide Mizutani , Yuuji Wada , Naoto Kochi , Tatsuya Ohsugi , Kazuki Yogosawa
CPC分类号： G03G15/162 , G03G15/1605 , G03G15/1675
摘要： An image forming apparatus includes an image bearer; a toner image forming device; an intermediate transferor; a primary transfer power source; a secondary transfer nip forming device; and a secondary transfer power source to output a secondary transfer bias. One of two peak values of the secondary transfer bias is a transfer peak value to provide a greater transfer-directional force to move toner from the intermediate transferor toward the recording medium in the secondary transfer nip. An absolute value of the transfer peak value is greater than an absolute value of the primary transfer bias.
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公开(公告)号：US09696662B2
公开(公告)日：2017-07-04
申请号：US15003239
申请日：2016-01-21
申请人： Kazuki Yogosawa , Mitsuru Takahashi , Hiroyoshi Haga , Kenji Sugiura , Naohiro Kumagai , Seiichi Kogure , Kenji Sengoku , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Tatsuya Ohsugi
发明人： Kazuki Yogosawa , Mitsuru Takahashi , Hiroyoshi Haga , Kenji Sugiura , Naohiro Kumagai , Seiichi Kogure , Kenji Sengoku , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Tatsuya Ohsugi
CPC分类号： G03G15/161 , B08B1/002 , B08B1/007 , B08B1/02 , B08B1/04 , B08B6/00 , G03G21/0035 , G03G21/0058 , G03G21/0076 , G03G2215/0129 , G03G2221/001
摘要： A cleaning device includes an upstream cleaner, an upstream cleaner, and a collection member. The upstream cleaner is configured to remove toner from a surface of a cleaning target. The downstream cleaner is disposed downstream from the upstream cleaner in a direction of movement of the surface of the cleaning target. The downstream cleaner is configured to remove toner from the surface of the cleaning target. The collection member is configured to collect toner from the downstream cleaner.
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公开(公告)号：US09766575B2
公开(公告)日：2017-09-19
申请号：US15143806
申请日：2016-05-02
申请人： Tatsuya Ohsugi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Yuuji Wada , Takehide Mizutani , Naoto Kochi , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa
发明人： Tatsuya Ohsugi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Yuuji Wada , Takehide Mizutani , Naoto Kochi , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G15/1605 , G03G2215/0129
摘要： An image forming apparatus, including an image bearer configured to bear a toner image; a transfer device disposed opposing to the image bearer; and a transfer bias power source. The transfer bias power source is configured to output a transfer bias to transfer the toner image onto a recording medium. The transfer bias is a superimposed bias that cyclically alternates between a transfer-directional bias to transfer the toner image from the image bearer onto the recording medium and an opposite-directional bias in an opposite direction of the transfer direction. A ratio of a time period of application of the opposite-directional bias to a total time period of one cycle of the output transfer bias is greater than 50%. The transfer bias power source changes a value of a direct current voltage in the superimposed bias according to a linear velocity of the image bearer.
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公开(公告)号：US09740156B2
公开(公告)日：2017-08-22
申请号：US15071773
申请日：2016-03-16
申请人： Yuuji Wada , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa , Kenji Sugiura , Takehide Mizutani , Tatsuya Ohsugi , Hirokazu Ishii
发明人： Yuuji Wada , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa , Kenji Sugiura , Takehide Mizutani , Tatsuya Ohsugi , Hirokazu Ishii
CPC分类号： G03G15/6591 , G03G15/1605 , G03G15/1675 , G03G2215/00776
摘要： An image forming apparatus includes a toner image forming unit, a nip formation member, a transfer power source, an information acquisition device, and a controller. The information acquisition device acquires specific information that specifies whether a recording sheet as a transfer target of a toner image is an uneven surface sheet having an uneven surface. The controller outputs a bias including a superimposed voltage, in which an alternating current (AC) voltage is superimposed on a direct current (DC) voltage, as a transfer bias from the transfer power source when the specific information acquired by the information acquisition device is not information corresponding to the uneven surface sheet and to output a bias including only the DC voltage as the transfer bias from the transfer power source when the specific information is the information corresponding to the uneven surface sheet.
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公开(公告)号：US09459564B2
公开(公告)日：2016-10-04
申请号：US14881611
申请日：2015-10-13
申请人： Tatsuya Ohsugi , Kenji Sugiura , Jyunya Sakuraba , Hirokazu Ishii , Toshitaka Yamaguchi , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Shinya Tanaka , Masayoshi Nakayama
发明人： Tatsuya Ohsugi , Kenji Sugiura , Jyunya Sakuraba , Hirokazu Ishii , Toshitaka Yamaguchi , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Shinya Tanaka , Masayoshi Nakayama
CPC分类号： G03G15/1675 , G03G15/1605 , G03G15/162 , G03G15/1665 , G03G15/1685
摘要： An image forming apparatus includes an image bearer, a transfer member, and a power source. The image bearer includes a plurality of layers. The transfer member forms a transfer nip between the image bearer and the transfer member. The power source outputs a transfer bias to transfer a toner image from the image bearer onto a recording sheet in the transfer nip. The transfer bias alternates between a transfer-side bias that causes the toner image to move from the image bearer to the recording sheet, and an opposite-side bias different from the transfer-side bias. A duty ratio of a time period, during which the opposite-side bias is output, relative to one cycle of a waveform, is greater than 50%.
摘要翻译： 图像形成装置包括图像载体，转印构件和电源。 图像载体包括多个层。 转印部件在图像承载体和转印部件之间形成转印辊隙。 电源输出转印偏压以将调色剂图像从图像载体转印到转印辊隙中的记录纸上。 转印偏压在导致调色剂图像从图像载体移动到记录片材的转印侧偏置之间交替，并且与转印侧偏压不同的相反侧偏置交替。 相对于波形的一个周期，输出相对侧偏压的时间段的占空比大于50％。
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