Patents by Inventor Junichi Moteki
Junichi Moteki 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: 11835905Abstract: A loop detection unit including a first contact portion in contact with a back surface of the recording material. A residual sheet detection unit including a second contact portion that is configured to come into contact with the back surface of the recording material. The first contact portion and the second contact portion are configured to rotate on the same rotation shaft. The second contact portion is configured to come into contact with the back surface of the recording material on a downstream of the first contact portion in the conveyance direction of the recording material.Type: GrantFiled: November 7, 2022Date of Patent: December 5, 2023Assignee: CANON KABUSHIKI KAISHAInventor: Junichi Moteki
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Publication number: 20230152742Abstract: A loop detection unit including a first contact portion in contact with a back surface of the recording material. A residual sheet detection unit including a second contact portion that is configured to come into contact with the back surface of the recording material. The first contact portion and the second contact portion are configured to rotate on the same rotation shaft. The second contact portion is configured to come into contact with the back surface of the recording material on a downstream of the first contact portion in the conveyance direction of the recording material.Type: ApplicationFiled: November 7, 2022Publication date: May 18, 2023Inventor: Junichi Moteki
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Publication number: 20230152743Abstract: A contact member comes into contact with a back surface of a recording material between a nip portion and a transfer portion in a conveyance direction of the recording material. The contact member is capable of being located at a first position, a second position, and a third position. A detection unit detects a position of the contact member so that the detection unit can detect the first position, the second position, and the third position. The contact member reaches the third position by being biased by the recording material from the second position.Type: ApplicationFiled: November 4, 2022Publication date: May 18, 2023Inventors: Junichi Moteki, Takuma Tadomi, Kohei Aoki
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Publication number: 20220011698Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.Type: ApplicationFiled: September 28, 2021Publication date: January 13, 2022Inventors: Tatsuo Yasui, Junichi Moteki, Akiyoshi Shinagawa, Takuma Tadomi, Ikuo Nakamoto, Toru Katsumi, Takahiro Ohnishi
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Patent number: 11163250Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.Type: GrantFiled: October 14, 2019Date of Patent: November 2, 2021Assignee: Canon Kabushiki KaishaInventors: Tatsuo Yasui, Junichi Moteki, Akiyoshi Shinagawa, Takuma Tadomi, Ikuo Nakamoto, Toru Katsumi, Takahiro Ohnishi
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Publication number: 20200125017Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.Type: ApplicationFiled: October 14, 2019Publication date: April 23, 2020Inventors: Tatsuo Yasui, Junichi Moteki, Akiyoshi Shinagawa, Takuma Tadomi, Ikuo Nakamoto, Toru Katsumi, Takahiro Ohnishi
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Patent number: 9684271Abstract: A controller for controlling an image heating device which includes first and second rollers for heating therebetween a toner image on a sheet, a first rubbing roller for rubbing the first roller, and a second rubbing roller for rubbing the second roller, said controller including a counter configured to count a number of heated sheets; a first executing portion configured to execute rubbing by the first rubbing roller in accordance with an output of the counter; a second executing portion configured to execute rubbing by the second rubbing roller in accordance with an output of the counter; an acquiring portion execution instructions of an image glossiness improving mode operation provided by an operator; and a determination portion configured to determine which roller or rollers of the first second rollers is to be rubbed in accordance with an output of the counter, when the acquiring portion acquires the execution instructions.Type: GrantFiled: February 19, 2016Date of Patent: June 20, 2017Assignee: Canon Kabushiki KaishaInventors: Junichi Moteki, Yasuharu Chiyoda
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Publication number: 20160170345Abstract: A controller for controlling an image heating device which includes first and second rollers for heating therebetween a toner image on a sheet, a first rubbing roller for rubbing the first roller, and a second rubbing roller for rubbing the second roller, said controller including a counter configured to count a number of heated sheets; a first executing portion configured to execute rubbing by the first rubbing roller in accordance with an output of the counter; a second executing portion configured to execute rubbing by the second rubbing roller in accordance with an output of the counter; an acquiring portion execution instructions of an image glossiness improving mode operation provided by an operator; and a determination portion configured to determine which roller or rollers of the first second rollers is to be rubbed in accordance with an output of the counter, when the acquiring portion acquires the execution instructions.Type: ApplicationFiled: February 19, 2016Publication date: June 16, 2016Inventors: Junichi Moteki, Yasuharu Chiyoda
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Publication number: 20160170346Abstract: A controller for controlling an image heating device which includes first and second rollers for heating therebetween a toner image on a sheet, a first rubbing roller for rubbing the first roller, and a second rubbing roller for rubbing the second roller, said controller including a counter configured to count a number of heated sheets; a first executing portion configured to execute rubbing by the first rubbing roller in accordance with an output of the counter; a second executing portion configured to execute rubbing by the second rubbing roller in accordance with an output of the counter; an acquiring portion execution instructions of an image glossiness improving mode operation provided by an operator; and a determination portion configured to determine which roller or rollers of the first second rollers is to be rubbed in accordance with an output of the counter, when the acquiring portion acquires the execution instructions.Type: ApplicationFiled: February 19, 2016Publication date: June 16, 2016Inventors: Junichi Moteki, Yasuharu Chiyoda
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Patent number: 9298140Abstract: A controller for controlling an image heating device which includes first and second rollers for heating therebetween a toner image on a sheet, a first rubbing roller for rubbing the first roller, and a second rubbing roller for rubbing the second roller, said controller including a counter configured to count a number of heated sheets; a first executing portion configured to execute rubbing by the first rubbing roller in accordance with an output of the counter; a second executing portion configured to execute rubbing by the second rubbing roller in accordance with an output of the counter; an acquiring portion execution instructions of an image glossiness improving mode operation provided by an operator; and a determination portion configured to determine which roller or rollers of the first second rollers is to be rubbed in accordance with an output of the counter, when the acquiring portion acquires the execution instructions.Type: GrantFiled: October 15, 2014Date of Patent: March 29, 2016Assignee: Canon Kabushiki KaishaInventors: Junichi Moteki, Yasuharu Chiyoda
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Publication number: 20150117920Abstract: An image forming apparatus includes: an image forming portion configured to form a toner image on a sheet; a first rotatable member and a second rotatable member which are configured to form a nip therebetween for heating the toner image formed on the sheet by the image forming portion; a separation member configured to separate the sheet in contact with the second rotatable member; a moving mechanism configured to move the separating member so that the separating member is movable to a contact position contacting the second rotatable member and a spaced position spaced from the second rotatable member; and a controller configured to control an operation of the moving mechanism. The controller moves the separating member from the spaced position to the contact position by the moving mechanism when an image forming process is interrupted in a state in which the separating member is in the spaced position.Type: ApplicationFiled: October 24, 2014Publication date: April 30, 2015Inventor: Junichi Moteki
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Publication number: 20150104205Abstract: A controller for controlling an image heating device which includes first and second rollers for heating therebetween a toner image on a sheet, a first rubbing roller for rubbing the first roller, and a second rubbing roller for rubbing the second roller, said controller including a counter configured to count a number of heated sheets; a first executing portion configured to execute rubbing by the first rubbing roller in accordance with an output of the counter; a second executing portion configured to execute rubbing by the second rubbing roller in accordance with an output of the counter; an acquiring portion execution instructions of an image glossiness improving mode operation provided by an operator; and a determination portion configured to determine which roller or rollers of the first second rollers is to be rubbed in accordance with an output of the counter, when the acquiring portion acquires the execution instructions.Type: ApplicationFiled: October 15, 2014Publication date: April 16, 2015Inventors: Junichi Moteki, Yasuharu Chiyoda
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Patent number: 8634751Abstract: An image forming apparatus may include a transfer nip, a first conveyance belt, a second conveyance belt, a fixing nip, a fixing drive unit, and a control unit. The first conveyance belt conveys the sheet to which a toner image is transferred and fixed. The fixing drive unit drives the fixing nip so that the fixing nip conveys the sheet at a speed that is higher than the transfer speed in a high speed fixing mode in which the fixing nip fixes the toner image to the sheet while conveying the sheet. The control unit sets a circumferential speed of the first conveyance belt and a circumferential speed of the second conveyance belt so that the sheet bridging the first and second conveyance belts is pulled by the second conveyance belt to slide on the first conveyance belt in the high speed fixing mode.Type: GrantFiled: September 28, 2011Date of Patent: January 21, 2014Assignee: Canon Kabushiki KaishaInventors: Junichi Moteki, Hideaki Miyazawa
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Patent number: 8571459Abstract: An image forming apparatus includes an image forming portion configured to form and heat-fix a toner image on a recording material; a re-conveying path configured to re-convey the recording material having the toner image on a front side, to the image forming portion to form and heat-fix a toner image on a back side of the recording material; a glossing portion configured to increase glossiness of the toner image; and an executing device configured to execute a high-gloss mode for glossing the toner image on the back side into a high-gloss toner image, and a partial-gloss mode for forming a partial-gloss toner image having glossiness lower than glossiness of the toner image in the high-gloss mode without glossing the toner image on the back side, wherein the glossing portion is provided in the re-conveying path.Type: GrantFiled: May 2, 2012Date of Patent: October 29, 2013Assignee: Canon Kabushiki KaishaInventor: Junichi Moteki
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Publication number: 20120219336Abstract: An image forming apparatus includes an image forming portion configured to form and heat-fix a toner image on a recording material; a re-conveying path configured to re-convey the recording material having the toner image on a front side, to the image forming portion to form and heat-fix a toner image on a back side of the recording material; a glossing portion configured to increase glossiness of the toner image; and an executing device configured to execute a high-gloss mode for glossing the toner image on the back side into a high-gloss toner image, and a partial-gloss mode for forming a partial-gloss toner image having glossiness lower than glossiness of the toner image in the high-gloss mode without glossing the toner image on the back side, wherein the glossing portion is provided in the re-conveying path.Type: ApplicationFiled: May 2, 2012Publication date: August 30, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Junichi Moteki
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Patent number: 8195077Abstract: An image forming apparatus includes an image forming portion configured to form and heat-fix a toner image on a recording material; a re-conveying path configured to re-convey the recording material having the toner image on a front side, to the image forming portion to form and heat-fix a toner image on a back side of the recording material; a glossing portion configured to increase glossiness of the toner image; and an executing device configured to execute a high-gloss mode for glossing the toner image on the back side into a high-gloss toner image, and a partial-gloss mode for forming a partial-gloss toner image having glossiness lower than glossiness of the toner image in the high-gloss mode without glossing the toner image on the back side, wherein the glossing portion is provided in the re-conveying path.Type: GrantFiled: July 24, 2009Date of Patent: June 5, 2012Assignee: Canon Kabushiki KaishaInventor: Junichi Moteki
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Publication number: 20120087687Abstract: An image forming apparatus may include a transfer nip, a first conveyance belt, a second conveyance belt, a fixing nip, a fixing drive unit, and a control unit. The first conveyance belt conveys the sheet to which a toner image is transferred and fixed. The fixing drive unit drives the fixing nip so that the fixing nip conveys the sheet at a speed that is higher than the transfer speed in a high speed fixing mode in which the fixing nip fixes the toner image to the sheet while conveying the sheet. The control unit sets a circumferential speed of the first conveyance belt and a circumferential speed of the second conveyance belt so that the sheet bridging the first and second conveyance belts is pulled by the second conveyance belt to slide on the first conveyance belt in the high speed fixing mode.Type: ApplicationFiled: September 28, 2011Publication date: April 12, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Junichi Moteki, Hideaki Miyazawa
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Patent number: 7798491Abstract: A registration unit includes a skew correction roller pair configured to rotate a sheet conveyed from a conveyance roller pair and to correct skew of the sheet. The registration unit sheet further includes a projectable swinging guide arranged between the conveyance roller pair and the skew correction roller pair to deflect the sheet. The skew correction roller pair corrects the skew of the sheet deflected by the swinging guide.Type: GrantFiled: August 7, 2007Date of Patent: September 21, 2010Assignee: Canon Kabushiki KaishaInventors: Junichi Moteki, Takashi Fujita, Hiroaki Takagishi, Nobuto Kamiyama, Seiichiro Kameda, Youichi Chikugo, Satohisa Tateishi, Kozo Inoue
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Patent number: 7748697Abstract: A sheet feeding apparatus according to an aspect of the invention includes conveying suction belts which have a function of rotating an adsorbed sheet and a function of conveying the sheet; a suction fan 112 which adsorbs the sheet to the belts; CCDs which detect a position and an skew in a direction orthogonal to a sheet conveying direction while the sheet is adsorbed to the belts; and a control device for driving the belts to rotate the sheet according to signals of CCDs in order to correct an attitude of the sheet adsorbed to the belts.Type: GrantFiled: November 7, 2007Date of Patent: July 6, 2010Assignee: Canon Kabushiki KaishaInventors: Takashi Fujita, Hiroaki Takagishi, Nobuto Kamiyama, Kozo Inoue, Seiichiro Kameda, Junichi Moteki, Satohisa Tateishi, Youichi Chikugo
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Publication number: 20100034569Abstract: An image forming apparatus including: an image forming portion configured to form and heat-fix a toner image on a recording material; a re-conveying path configured to re-convey the recording material having the toner image on a front side, to the image forming portion to form and feat-fix a toner image on a back side of the recording material; a glossing portion configured to increase glossiness of the toner image; and an executing device configured to execute a high-gloss mode for glossing the toner image on the back side into a high-gloss toner image, and a low-gloss mode for forming a low-gloss toner image having glossiness lower than glossiness of the toner image in the high-gloss mode without glossing the toner image on the back side, wherein the glossing portion is provided in the re-conveying path.Type: ApplicationFiled: July 24, 2009Publication date: February 11, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Junichi Moteki