公开(公告)号：US20160109832A1

公开(公告)日：2016-04-21

申请号：US14881611

申请日：2015-10-13

Applicant: Tatsuya OHSUGI ,  Kenji SUGIURA ,  Jyunya SAKURABA ,  Hirokazu ISHll ,  Toshitaka YAMAGUCHI ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yuuji WADA ,  Kazuki YOGOSAWA ,  Shinya TANAKA ,  Masayoshi NAKAYAMA

Inventor： Tatsuya OHSUGI ,  Kenji SUGIURA ,  Jyunya SAKURABA ,  Hirokazu ISHll ,  Toshitaka YAMAGUCHI ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yuuji WADA ,  Kazuki YOGOSAWA ,  Shinya TANAKA ,  Masayoshi NAKAYAMA

IPC: G03G15/16

CPC classification number: G03G15/1675 ,  G03G15/1605 ,  G03G15/162 ,  G03G15/1665 ,  G03G15/1685

Abstract: 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%.

Abstract translation: 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％。

公开(公告)号：US20150147074A1

公开(公告)日：2015-05-28

申请号：US14541279

申请日：2014-11-14

Applicant: Yuuji WADA ,  Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Yusuke Mitani ,  Kazuki Yogosawa

Inventor： Yuuji WADA ,  Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Yusuke Mitani ,  Kazuki Yogosawa

IPC: G03G21/06 ,  G03G15/00

CPC classification number: G03G15/161 ,  G03G15/70 ,  G03G21/0035 ,  G03G21/0047 ,  G03G21/007 ,  G03G21/0076 ,  G03G2215/1661

Abstract: A cleaner includes a cleaning member electrostatically removing toner on an object; a first electricity supplier supplying a first voltage (or current) with polarity opposite to that of toner to the cleaning member; a toner collecting member collecting toner from the cleaning member; and a second electricity supplier supplying a second voltage with the polarity greater than the first voltage to the toner collecting member. The first and second electricity suppliers set plural setting values of the first and second voltages smaller than the targeted values of the first and second voltages, and first and second control members of the first and second electricity suppliers output first and second control signals while changing in step-by-step manner so that first and second output members of the first and second electricity suppliers apply the first and second voltage in step-by-step manner before the first and second voltages reach the targeted voltages.

Abstract translation: 清洁器包括静电除去物体上的调色剂的清洁部件; 向所述清洁部件提供极性与调色剂极性相反的第一电压（或电流）的第一电力供应商; 从清洁部件收集调色剂的调色剂收集部件; 以及向所述调色剂收集构件提供极性大于所述第一电压的第二电压的第二电力供应器。 第一和第二电力供应商将第一和第二电压的多个设定值设置为小于第一和第二电压的目标值，并且第一和第二电力供应商的第一和第二控制构件在改变时输出第一和第二控制信号 使得第一和第二电力供应商的第一和第二输出构件在第一和第二电压达到目标电压之前以逐步的方式施加第一和第二电压。

公开(公告)号：US20140314461A1

公开(公告)日：2014-10-23

申请号：US14254006

申请日：2014-04-16

Applicant: Yusuke ISHIZUKA ,  Hirotaka Hatta ,  Toshiya Sato ,  Akira Asaoka ,  Norio Kudo ,  Hiroyuki UENISHI ,  Kenji Sugiura ,  Kazuki Yogosawa

Inventor： Yusuke ISHIZUKA ,  Hirotaka Hatta ,  Toshiya Sato ,  Akira Asaoka ,  Norio Kudo ,  Hiroyuki UENISHI ,  Kenji Sugiura ,  Kazuki Yogosawa

IPC: G03G21/00

CPC classification number: G03G21/0035 ,  G03G15/161 ,  G03G21/105 ,  G03G2215/1661

Abstract: An image forming apparatus includes an image carrier, a toner-image forming unit, a transfer unit, a cleaner, a plurality of cylindrical transport path forming members, a falling transport path forming member, and a discharge port. The falling transport path forming member has through holes in a side wall thereof. A second end of each of the transport path forming members is inserted into a corresponding one of the through holes. The falling transport path forming member forms a falling transport path that causes toner ejected from an ejection port disposed in the second end to fall. The discharge port is disposed in a lower part of the falling transport path forming member to discharge the toner to a discharge destination. The second ends of the transport path forming members are disposed offset from each other in a horizontal direction on the side wall of the falling transport path forming member.

Abstract translation: 图像形成装置包括图像载体，调色剂图像形成单元，转印单元，清洁器，多个圆柱形输送路径形成构件，下降输送路径形成构件和排出口。 落下的输送路径形成构件在其侧壁中具有通孔。 每个传送路径形成构件的第二端插入对应的一个通孔中。 下降的输送路径形成部件形成下降的输送路径，其使得从设置在第二端的喷射口喷出的墨粉落下。 排出口设置在下落的传送路径形成构件的下部，以将调色剂排出到排放目的地。 输送路径形成构件的第二端在下降的输送路径形成构件的侧壁上沿水平方向彼此偏置设置。

公开(公告)号：US11934145B2

公开(公告)日：2024-03-19

申请号：US18052977

申请日：2022-11-07

Applicant: Minoru Masuda ,  Tohru Suganuma ,  Masashi Nagayama ,  Hiroyuki Kishida ,  Kento Takeuchi ,  Kaede Masuko ,  Tomomi Suzuki ,  Takuya Suganuma ,  Kazuki Yogosawa

Inventor： Minoru Masuda ,  Tohru Suganuma ,  Masashi Nagayama ,  Hiroyuki Kishida ,  Kento Takeuchi ,  Kaede Masuko ,  Tomomi Suzuki ,  Takuya Suganuma ,  Kazuki Yogosawa

IPC: G03G21/16 ,  G03G9/083 ,  G03G21/00

CPC classification number: G03G9/0834 ,  G03G21/0047 ,  G03G21/1676

Abstract: A developing apparatus includes an electrostatic latent image bearer, a developing sleeve, a case, and an air filter. The case accommodates a two-component developer and the developing sleeve. The air filter is attached to the case. The air filter has a thickness of 2 to 20 mm and has a density gradient with a pressure loss of 2 to 40 Pa at a wind speed of 10 cm/s. The air filter forms an airflow sucked into the case from a gap between the developing sleeve and the case and forms an airflow discharged from the case through the air filter. The two-component developer accommodated in the case contains a magnetic particle a surface of which is coated with a resin layer. The resin layer contains at least one type of chargeable particle.

公开(公告)号：US20230330582A1

公开(公告)日：2023-10-19

申请号：US18025406

申请日：2021-09-22

Applicant: Yuta YABUTA ,  Kazuki YOGOSAWA ,  Tatsuya KUBO ,  Takuya SUGANUMA ,  Hotaru HASHIKAWA ,  Yoshihiro FUJIWARA

Inventor： Yuta YABUTA ,  Kazuki YOGOSAWA ,  Tatsuya KUBO ,  Takuya SUGANUMA ,  Hotaru HASHIKAWA ,  Yoshihiro FUJIWARA

IPC: B01D46/10 ,  G03G21/18

CPC classification number: B01D46/10 ,  G03G21/1814 ,  B01D2275/10

Abstract: A filter holding device includes an opening portion and a filter. The opening portion communicates an inside of the filter holding device with an outside of the filter holding device, and has a rim that extends in a communication direction from the inside of the filter holding device toward the outside of the filter holding device. The filter is disposed in the opening portion, and has a first side and a second side. The first side faces the inside of the filter holding device. The second side faces the outside of the filter holding device. The filter has a larger weight density per unit volume at the second side facing the outside of the filter holding device than at the first side facing the inside of the filter holding device in a state in which the filter is disposed in the opening portion.

公开(公告)号：US20230315006A1

公开(公告)日：2023-10-05

申请号：US18015083

申请日：2021-08-17

Applicant: Kazuki YOGOSAWA ,  Tatsuya KUBO ,  Yuuki TSUCHIYA ,  Shinya KARASAWA

Inventor： Kazuki YOGOSAWA ,  Tatsuya KUBO ,  Yuuki TSUCHIYA ,  Shinya KARASAWA

IPC: G03G21/18

CPC classification number: G03G21/1842

Abstract: A positioning member defines a facing distance between a first rotating body and a second rotating body. The positioning member includes a fitting portion, a groove, and a restricting member. A fitted portion of the first rotating body is to be rotatably fitted into the fitting portion. The groove has a groove shape extending in a predetermined direction from an opening to an abutting portion. A shaft portion of the second rotating body is to be slidably movable in the groove. The restricting member restricts movement of the shaft portion in the predetermined direction in a state in which the shaft portion abuts on the abutting portion in the groove. The restricting member is detachably disposed on the groove.

公开(公告)号：US10120304B2

公开(公告)日：2018-11-06

申请号：US15673492

申请日：2017-08-10

Applicant: Junpei Fujita ,  Naohiro Kumagai ,  Seiichi Kogure ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuuji Wada

Inventor： Junpei Fujita ,  Naohiro Kumagai ,  Seiichi Kogure ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuuji Wada

IPC: G03G15/16

Abstract: A belt device includes a belt unit including a plurality of rotators and a belt looped around the plurality of rotators. The belt device further includes a frame including a plurality of support portions to support the belt unit, a biasing member to bias the belt unit supported by the frame in a predetermined direction, and an adjuster to adjust a position of at least one of the plurality of support portions.

公开(公告)号：US09897943B2

公开(公告)日：2018-02-20

申请号：US14660128

申请日：2015-03-17

Applicant: Junpei Fujita ,  Naohiro Kumagai ,  Seiichi Kogure ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuuji Wada ,  Yusuke Mitani

Inventor： Junpei Fujita ,  Naohiro Kumagai ,  Seiichi Kogure ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuuji Wada ,  Yusuke Mitani

IPC: G03G15/00 ,  G03G15/16

CPC classification number: G03G15/161 ,  G03G15/1615

Abstract: A belt unit is detachably attachable to a body of an image forming apparatus. The belt unit includes a belt, a pressing member, and a frame. The belt is wound around a plurality of supports to travel in a belt travel direction. The belt includes a base layer and an elastic layer. The pressing member presses warping on an edge of the belt. The frame supports the plurality of supports. The pressing member is positioned on the frame.

公开(公告)号：US09811036B2

公开(公告)日：2017-11-07

申请号：US15269093

申请日：2016-09-19

Applicant: Junpei Fujita ,  Kenji Sugiura ,  Yuuji Wada ,  Hiroyoshi Haga ,  Seiichi Kogure ,  Naohiro Kumagai ,  Kazuki Yogosawa

Inventor： Junpei Fujita ,  Kenji Sugiura ,  Yuuji Wada ,  Hiroyoshi Haga ,  Seiichi Kogure ,  Naohiro Kumagai ,  Kazuki Yogosawa

IPC: G03G15/01 ,  G03G15/00 ,  G03G15/16

CPC classification number: G03G15/5054 ,  G03G15/1615 ,  G03G15/162

Abstract: 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.

公开(公告)号：US20160274504A1

公开(公告)日：2016-09-22

申请号：US15071773

申请日：2016-03-16

Applicant: Yuuji WADA ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Kazuki YOGOSAWA ,  Kenji SUGIURA ,  Takehide MIZUTANI ,  Tatsuya OHSUGI ,  Hirokazu ISHll

Inventor： Yuuji WADA ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Kazuki YOGOSAWA ,  Kenji SUGIURA ,  Takehide MIZUTANI ,  Tatsuya OHSUGI ,  Hirokazu ISHll

IPC: G03G15/16

CPC classification number: G03G15/6591 ,  G03G15/1605 ,  G03G15/1675 ,  G03G2215/00776

Abstract: 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.

Abstract translation: 图像形成装置包括调色剂图像形成单元，辊隙形成构件，转印电源，信息获取装置和控制器。 信息获取装置获取指定作为调色剂图像的转印对象的记录纸是具有不平坦表面的不平坦表面片的具体信息。 当由信息获取装置获取的特定信息是由传送电源传递偏压时，控制器输出包括叠加在直流（DC）电压上的交流（AC）电压的叠加电压的偏压， 不是与不平坦表面片材相对应的信息，并且当特定信息是与不平坦表面片材相对应的信息时，输出仅包括来自转印电源的转印偏压的直流电压的偏压。