Patents by Inventor Jun Tomine
Jun Tomine has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10656570Abstract: An image forming apparatus includes a black image forming portion, a color image forming portion, an intermediary transfer member, a transfer portion, and an executing portion capable of executing an operation in a color mode in which a color image is formed using the color image forming portion and the black image forming portion and an operation in a monochromatic mode in which a monochromatic image is formed using only the black image forming portion. The executing portion is capable of forming the monochromatic image in the operation in the monochromatic mode under application of a voltage to the black developing device. The voltage is applied under a voltage condition such that a line width is broader than a line width under a voltage condition inputted to the black developing device when the operation in the color mode is executed.Type: GrantFiled: July 20, 2017Date of Patent: May 19, 2020Assignee: Canon Kabushiki KaishaInventor: Jun Tomine
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Publication number: 20190011860Abstract: An image forming apparatus includes a photosensitive member, an intermediary transfer member, an image forming portion, a cleaning blade, a motor, and an executing portion capable of executing an operation in an operating mode after an end of the image formation. In the operation in the operating mode, the executing portion is capable of executing a toner supplying operation, a stopping operation of the intermediary transfer member moving in the normal direction, and a reversely moving operation in which the intermediary transfer member is moved in an opposite direction to a normal direction and then is stopped. When the supplying operation is not executed, after an end of the image formation, the stopping operation is executed and then the reversely moving operation is executed. When the supplying operation is executed, after the supplying operation is carried out, the stopping operation is executed but the reversely moving operation is not executed.Type: ApplicationFiled: June 27, 2018Publication date: January 10, 2019Inventor: Jun Tomine
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Publication number: 20180039212Abstract: The present disclosure provides an image forming apparatus arranged to be able to reduce sticking of toner on an image bearing member in a configuration in which a part of image bearing members can be separated from an intermediate transfer member. A control portion of the image forming apparatus is configured to execute a first mode to form an image on a recording medium with the first and second image bearing members and a second mode to form an image on a recording medium with the first image bearing member while the second image bearing member being separate from the intermediate transfer member. The control portion execute a rotation process of rotating the second image bearing member temporarily in a duration of the second mode in a case where a detection result of a temperature exceeds a predetermined temperature in the duration of the second mode.Type: ApplicationFiled: July 27, 2017Publication date: February 8, 2018Inventor: Jun Tomine
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Publication number: 20180024475Abstract: An image forming apparatus includes a black image forming portion, a color image forming portion, an intermediary transfer member, a transfer portion, and an executing portion capable of executing an operation in a color mode in which a color image is formed using the color image forming portion and the black image forming portion and an operation in a monochromatic mode in which a monochromatic image is formed using only the black image forming portion. The executing portion is capable of forming the monochromatic image in the operation in the monochromatic mode under application of a voltage to the black developing device. The voltage is applied under a voltage condition such that a line width is broader than a line width under a voltage condition inputted to the black developing device when the operation in the color mode is executed.Type: ApplicationFiled: July 20, 2017Publication date: January 25, 2018Inventor: Jun Tomine
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Patent number: 9835970Abstract: In an image forming apparatus including a plurality of image forming stations, on the basis of a density of a toner image formed in an upstream image forming station, an operation of a pre-exposure device in a downstream image forming station is controlled.Type: GrantFiled: June 17, 2016Date of Patent: December 5, 2017Assignee: Canon Kabushiki KaishaInventors: Kenichi Shibuya, Sumito Tanaka, Shota Soda, Jun Tomine, Hiroyuki Eda, Hirohisa Nakajima
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Patent number: 9519263Abstract: An image forming apparatus includes a cartridge detachably attachable to the image forming apparatus, the cartridge including an image bearing member and a cleaning member which abuts against the image bearing member to remove remaining developer on the image bearing member; an inputting portion into which information for detaching the cartridge from the image forming apparatus is inputted; and an execution portion capable of executing, after an operation of forming an image on a recording material is finished, a first operation of rotating the image bearing member in a direction reverse to a rotation direction of the image bearing member and a second operation of rotating the image bearing member in the rotation direction of the image bearing member when the information is inputted to the inputting portion.Type: GrantFiled: December 2, 2015Date of Patent: December 13, 2016Assignee: Canon Kabushiki KaishaInventor: Jun Tomine
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Publication number: 20160161901Abstract: An image forming apparatus includes: a cartridge detachably attachable to the image forming apparatus, the cartridge including an image bearing member and a cleaning member which abuts against the image bearing member to remove a remained developer on the image bearing member; an inputting portion into which information for taking out the cartridge from the image forming apparatus is inputted; and an execution portion capable of executing, after an operation of forming an image on a recording material is finished, an operation of rotating the image bearing member in a direction reverse to a rotation direction of the image bearing member and an second operation of rotating the image bearing member in the rotation direction of the image bearing member when the information is inputted to the inputting portion.Type: ApplicationFiled: December 2, 2015Publication date: June 9, 2016Inventor: Jun TOMINE
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Patent number: 8254802Abstract: An image heating apparatus including: an image heating member for heating an image formed on a sheet at a nip portion; a temperature detector for detecting temperature of a predetermined region of the image heating member; a cooler for cooling the predetermined region; and an activating device for activating the cooler to perform a cooling operation in accordance with an output of the temperature detector, wherein the apparatus has a first mode of stopping a cooling operation in accordance with an output of the temperature detector; and a second mode of stopping the cooling operation in accordance with an end of image heating processing irrespective of the output of the temperature detecting device. The image heating apparatus is capable of suppressing unnecessary energy consumption, and of eliminating uneven glossiness due to a reduced temperature region at a boundary between a sheet passing portion and a non-sheet passing portion.Type: GrantFiled: September 6, 2006Date of Patent: August 28, 2012Assignee: Canon Kabushiki KaishaInventors: Ryo Hanashi, Kota Arimoto, Taisuke Matsuura, Jun Tomine
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Patent number: 7949280Abstract: An image heating apparatus includes a heating rotary member, which heats an image on a recording material at a nip portion, an air blowing device for blowing air toward an air blowing port to cool a predetermined area of the heating rotary member, a shutter, which opens and closes the air blowing port, and a determination device. The determination device determines an execution of an operation of the air blowing device with the shutter opened after a first job is completed, in accordance with a size of a recording material in a width direction perpendicular to a recording material transport direction in a second job for supplying a recording material, between an execution termination of the first job for continuously supplying recording materials having a size smaller than a predetermined size in the width direction, while operating the air blowing device, and a start of a recording material supply of the second job, in a case that the second job is executed subsequent to the termination of the first job.Type: GrantFiled: January 26, 2010Date of Patent: May 24, 2011Assignee: Canon Kabushiki KaishaInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
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Patent number: 7937011Abstract: An image forming apparatus includes an image bearing member; toner image formation means for forming a toner image on the image bearing member; removing means for removing deposited matter deposited on the image bearing member; detecting means for detecting a toner image to be detected, formed on the toner image formation means; control means for controlling a toner image forming condition of the toner image forming means in accordance with a result of detection of the toner image to be detected by the detecting means; the apparatus being operable in a mode in which the removing means operates to remove the deposition, and the detecting means operates to detect the toner image to be detected, executing means for executing an operation in the mode; and an operating portion for manually starting execution of the operation in the mode by the executing means.Type: GrantFiled: December 2, 2009Date of Patent: May 3, 2011Assignee: Canon Kabushiki KaishaInventors: Yuichi Yamamoto, Eiichi Motoyama, Yoshihito Osari, Kuniyasu Kimura, Hiroaki Tomiyasu, Takahiko Yamaoka, Jun Tomine, Yuichi Ikeda, Yasushi Takeuchi
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Patent number: 7764895Abstract: An image heating apparatus including: an image heating member, which heats an image on a recording material in a nip portion; an air blower, which blows air toward an air blowing port to cool a predetermined area of the image heating member; and a shutter, which opens and closes the air blowing port, in which the shutter is kept at a closed position when a temperature of the predetermined area of the image heating member is equal to or lower than a predetermined temperature, whereby a temperature rise in a non-sheet passing portion can be efficiently reduced by using the small air blower without lowering the productivity when small-size recording materials are continuously passed nor reducing the lifetime of the air blower.Type: GrantFiled: April 8, 2009Date of Patent: July 27, 2010Assignee: Canon Kabushiki KaishaInventors: Jun Tomine, Ryo Hanashi, Kota Arimoto, Taisuke Matsuura
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Publication number: 20100180785Abstract: An image heating apparatus including: a heating rotary member, which heats an image on a recording material in a nip portion; an air blowing unit, which blows air toward an air blowing port to cool a predetermined area of the heating rotary member; and a shutter, which opens and closes the air blowing port, wherein a cooling operation can be performed continuously with the shutter opened after image heating processing is completed, whereby a downtime required for making the temperature distribution over the entire heating area uniform after the continuous sheet supply of small-size recording materials is reduced remarkably.Type: ApplicationFiled: January 26, 2010Publication date: July 22, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
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Publication number: 20100074645Abstract: An image forming apparatus includes an image bearing member; toner image formation means for forming a toner image on the image bearing member; removing means for removing deposited matter deposited on the image bearing member; detecting means for detecting a toner image to be detected, formed on the toner image formation means; control means for controlling a toner image forming condition of the toner image forming means in accordance with a result of detection of the toner image to be detected by the detecting means; the apparatus being operable in a mode in which the removing means operates to remove the deposition, and the detecting means operates to detect the toner image to be detected, executing means for executing an operation in the mode; and an operating portion for manually starting execution of the operation in the mode by the executing means.Type: ApplicationFiled: December 2, 2009Publication date: March 25, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Yuichi YAMAMOTO, Eiichi MOTOYAMA, Yoshihito OSARI, Kuniyasu KIMURA, Hiroaki TOMIYASU, Takahiko YAMAOKA, Jun TOMINE, Yuichi IKEDA, Yasushi TAKEUCHI
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Patent number: 7684724Abstract: An image heating apparatus including: a heating rotary member, which heats an image on a recording material in a nip portion; an air blowing unit, which blows air toward an air blowing port to cool a predetermined area of the heating rotary member; and a shutter, which opens and closes the air blowing port, wherein a cooling operation can be performed continuously with the shutter opened after image heating processing is completed, whereby a downtime required for making the temperature distribution over the entire heating area uniform after the continuous sheet supply of small-size recording materials is reduced remarkably.Type: GrantFiled: June 9, 2009Date of Patent: March 23, 2010Assignee: Canon Kabushiki KaishaInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
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Patent number: 7650094Abstract: An image forming apparatus includes an image bearing member; toner image formation means for forming a toner image on the image bearing member; removing means for removing deposited matter deposited on the image bearing member; detecting means for detecting a toner image to be detected, formed on the toner image formation means; control means for controlling a toner image forming condition of the toner image forming means in accordance with a result of detection of the toner image to be detected by the detecting means; the apparatus being operable in a mode in which the removing means operates to remove the deposition, and the detecting means operates to detect the toner image to be detected, executing means for executing an operation in the mode; and an operating portion for manually starting execution of the operation in the mode by the executing means.Type: GrantFiled: November 1, 2005Date of Patent: January 19, 2010Assignee: Canon Kabushiki KaishaInventors: Yuichi Yamamoto, Eiichi Motoyama, Yoshihito Osari, Kuniyasu Kimura, Hiroaki Tomiyasu, Takahiko Yamaoka, Jun Tomine, Yuichi Ikeda, Yasushi Takeuchi
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Publication number: 20090245845Abstract: An image heating apparatus including: a heating rotary member, which heats an image on a recording material in a nip portion; an air blowing unit, which blows air toward an air blowing port to cool a predetermined area of the heating rotary member; and a shutter, which opens and closes the air blowing port, wherein a cooling operation can be performed continuously with the shutter opened after image heating processing is completed, whereby a downtime required for making the temperature distribution over the entire heating area uniform after the continuous sheet supply of small-size recording materials is reduced remarkably.Type: ApplicationFiled: June 9, 2009Publication date: October 1, 2009Applicant: CANON KABUSHIKI KAISHIInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
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Publication number: 20090202269Abstract: An image heating apparatus including: an image heating member, which heats an image on a recording material in a nip portion; an air blower, which blows air toward an air blowing port to cool a predetermined area of the image heating member; and a shutter, which opens and closes the air blowing port, in which the shutter is kept at a closed position when a temperature of the predetermined area of the image heating member is equal to or lower than a predetermined temperature, whereby a temperature rise in a non-sheet passing portion can be efficiently reduced by using the small air blower without lowering the productivity when small-size recording materials are continuously passed nor reducing the lifetime of the air blower.Type: ApplicationFiled: April 8, 2009Publication date: August 13, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Jun Tomine, Ryo Hanashi, Kota Arimoto, Taisuke Matsuura
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Patent number: 7561818Abstract: An image heating apparatus including: a heating rotary member, which heats an image on a recording material in a nip portion; an air blowing unit, which blows air toward an air blowing port to cool a predetermined area of the heating rotary member; and a shutter, which opens and closes the air blowing port, wherein a cooling operation can be performed continuously with the shutter opened after image heating processing is completed, whereby a downtime required for making the temperature distribution over the entire heating area uniform after the continuous sheet supply of small-size recording materials is reduced remarkably.Type: GrantFiled: September 5, 2006Date of Patent: July 14, 2009Assignee: Canon Kabushiki KaishaInventors: Kota Arimoto, Taisuke Matsuura, Ryo Hanashi, Jun Tomine
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Patent number: 7536145Abstract: An image heating apparatus including: an image heating member, which heats an image on a recording material in a nip portion; an air blower, which blows air toward an air blowing port to cool a predetermined area of the image heating member; and a shutter, which opens and closes the air blowing port, in which the shutter is kept at a closed position when a temperature of the predetermined area of the image heating member is equal to or lower than a predetermined temperature, whereby a temperature rise in a non-sheet passing portion can be efficiently reduced by using the small air blower without lowering the productivity when small-size recording materials are continuously passed nor reducing the lifetime of the air blower.Type: GrantFiled: September 11, 2006Date of Patent: May 19, 2009Assignee: Canon Kabushiki KaishaInventors: Jun Tomine, Ryo Hanashi, Koto Arimoto, Taisuke Matsuura
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Patent number: 7398043Abstract: An image forming apparatus includes an image bearing member for carrying a toner image; a toner image developing device for forming a toner image on the image bearing member; a transfer roller for contacting the image bearing member to form a nip therebetween and for being supplied with a voltage to transfer the toner image from the image bearing member onto the recording material in the nip; a voltage source for applying a voltage to the transfer roller; an executing devise for executing a toner application mode for transferring the toner image onto the transfer roller by applying a voltage to the transfer roller contacted to the toner image in the nip.Type: GrantFiled: September 26, 2005Date of Patent: July 8, 2008Assignee: Canon Kabushiki KaishaInventors: Yuichi Ikeda, Jun Tomine