Patents by Inventor Koichiro Kawaguchi
Koichiro Kawaguchi 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: 8094180Abstract: A conveying apparatus includes a lever swinging in contact with a recording medium conveyed along a conveying path in a conveying direction, a sensor detecting the swinging of the lever, a moving unit for moving the lever from a position where the lever is allowed to contact the recording medium in the conveying path to a position where the lever is retracted from the conveying path, a guide unit being movable between a first position and a second position, the guide unit guiding the recording medium conveyed in a direction opposite to the conveying direction to the conveying path when the guide unit is located in the second position and a transmitting unit for transmitting the movement of the guide unit to the moving unit through motion of at least one member to link the movement of the guide unit from the first position to the second position with the movement of the lever to the position where the lever is retracted from the conveying path, the movement of the lever being performed by the moving unit.Type: GrantFiled: April 15, 2009Date of Patent: January 10, 2012Assignee: Canon Kabushiki KaishaInventors: Kentaro Onuma, Hiroyuki Saito, Koichiro Kawaguchi, Motoyuki Taguchi
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Publication number: 20110280642Abstract: A control unit includes a memory storing correction data obtained by associating information acquired by a first acquisition unit (rotary encoder) with information acquired by a second acquisition unit (direct sensor) with respect to, at least one rotation of a conveying roller. When a plurality of images are sequentially printed on a first surface and a second surface of a continuous sheet, the control unit reads the correction data corresponding to the rotation information acquired by the first acquisition unit from the memory and corrects at least one of driving control of a print head and driving control of the roller. The correction data used in printing on the first surface of the sheet is different from that used in printing on the second surface of the sheet.Type: ApplicationFiled: November 18, 2010Publication date: November 17, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Yasuhiko Ikeda, Masahito Yoshida, Koichiro Kawaguchi, Kenji Shigeno, Toshiki Takeuchi, Masato Izumi, Ryosuke Sato, Kengo Nieda
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Publication number: 20110279510Abstract: An apparatus includes an adjusting mechanism configured to change a gap between a print head and a continuous sheet, and the adjusting mechanism controls the gap to be larger than that at the time of printing when a splice of the continuous sheet passes the print head. An unprintable area is set on each of the upstream side and the downstream side of the splice, each having at least a width corresponding to a sum of a length of the plurality of print heads in the direction of sheet conveyance and a distance of movement of the continuous sheet in a period required for the adjusting mechanism to change the gap, and the printing is continued while avoiding the unprintable area.Type: ApplicationFiled: December 9, 2010Publication date: November 17, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Toshiki Takeuchi, Koichiro Kawaguchi, Kengo Nieda
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Publication number: 20110266742Abstract: An apparatus includes a first conveyance unit configured to convey a sheet, a first guide located downstream of the first conveyance unit in a conveyance direction and configured to guide a first side end of the conveyed sheet, a skew unit configured to convey the sheet in an oblique direction to come closer to the first guide, a second guide configured to contact a second side end opposite the first side end to guide the second side end, a second conveyance unit located downstream of the first guide in the conveyance direction, and a control unit configured to perform control so that, after conveying the sheet by the skew unit with the first guide contacting the first side end while the second guide is separated from the second side end, the second guide moves to a position close to the second side end.Type: ApplicationFiled: December 10, 2010Publication date: November 3, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Ryosuke Sato, Kenji Shigeno, Koichiro Kawaguchi, Toshiki Takeuchi, Kengo Nieda
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Publication number: 20110211896Abstract: An apparatus may include a print head, multiple roller pairs to convey a sheet, a direct sensor, and a control unit. The print head prints on a conveyed sheet. The multiple roller pairs nip the sheet at an upstream side of the print head to convey the sheet, nip the sheet at a downstream side of the print head, and nip the sheet at an upstream side of a first roller pair to convey the sheet. The direct sensor measures a surface of the conveyed sheet at a measurement position between a nip position of the first roller pair and a nip position of a third roller pair to obtain information relating to a movement state of the sheet. The control unit controls to correct at least one of driving control of the print head and conveying control of the sheet, based on the information obtained by the direct sensor.Type: ApplicationFiled: November 18, 2010Publication date: September 1, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Koichiro Kawaguchi, Toshiki Takeuchi, Kengo Nieda, Tetsuhiro Nitta
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Patent number: 8007100Abstract: There is provided a recording apparatus in which a pressure contact position of a pinch roller to a conveying roller and a distance between the pressure contact position of the pinch roller and a platen can be properly set corresponding to different recording conditions so that a high quality image can be recorded even under the different recording conditions. A movement of the pressure contact position in which the pressure contact position of the pinch roller 37 to the conveying roller is moved by moving a pinch roller holder and a movement of the platen in which a position of the platen which faces a recording head 7 is moved for the pressure contact position of the pinch roller are executed in an interlocking relational manner.Type: GrantFiled: March 4, 2008Date of Patent: August 30, 2011Assignee: Canon Kabushiki KaishaInventors: Masaaki Ishihara, Koichiro Kawaguchi
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Publication number: 20110135372Abstract: A both-side recording apparatus that enables both-side recording on continuous paper using a single recording head, without cutting the continuous paper at an intermediate position, is provided. Reduction in size and costs of the apparatus is achieved by eliminating a conveying path dedicated to both-side recording. The apparatus includes a paper-feeder that feeds continuous paper, a recording head that records an image on the continuous paper, a reversing unit that reverses the continuous paper such that a recording surface of the continuous paper facing the recording head is reversed, and a rewinding mechanism that rewinds the fed continuous paper to the paper-feeder. During both-side recording, recording is performed on the back side of the continuous paper by rewinding the continuous paper by the rewinding mechanism, setting the back side of the continuous paper to oppose the recording head by the reversing unit, and feeding the continuous paper from the paper-feeder.Type: ApplicationFiled: November 17, 2010Publication date: June 9, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Ryosuke Sato, Yasuhiko Ikeda, Masahito Yoshida, Koichiro Kawaguchi, Kenji Shigeno, Toshiki Takeuchi, Masato Izumi, Kengo Nieda
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Publication number: 20110132957Abstract: A device includes a conveying roller configured to convey a recording medium, a follower roller configured to press the recording medium against the conveying roller, a detector configured to detect a direction of skew of the conveyed recording medium, and a changer configured to change a state of contact between the recording medium and the conveying roller in accordance with a result of the detection by the detector such that a length of a portion of the conveying roller that is in contact with the recording medium in a conveyance direction is larger on a side toward which the recording medium is skewed than on an opposite side.Type: ApplicationFiled: November 12, 2010Publication date: June 9, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Koichiro Kawaguchi, Yasuhiko Ikeda, Toshiki Takeuchi, Kengo Nieda, Masahito Yoshida, Masato Izumi, Kenji Shigeno, Ryosuke Sato, Noriyuki Sugiyama, Takaaki Ishida
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Patent number: 7954804Abstract: A recording apparatus includes moving rollers and a feeding roller. The moving rollers move a set first sheet in a direction intersecting a conveying direction. The feeding roller conveys sheets at a sheet stacking portion. After the first sheet is shifted to a parallel position by the moving roller, a second sheet at a setting position and the first sheet at the parallel position are conveyed by the feeding roller.Type: GrantFiled: April 22, 2008Date of Patent: June 7, 2011Assignee: Canon Kabushiki KaishaInventors: Haruo Uchida, Kenji Kawazoe, Nozomu Nishiberi, Koichiro Kawaguchi, Yoshiaki Watanabe, Yasuyuki Asai, Mitsuru Kondo
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Publication number: 20110122189Abstract: An apparatus includes a line-type recording head including a plurality of recording elements formed thereon, a holding unit configured to hold a sheet, a conveyance mechanism configured to convey the sheet held by the holding unit to a position of recording by the recording head, a shift mechanism capable of relatively shifting a position of the sheet in a sheet width direction with respect to the recording head while the sheet is fed from the holding unit to the recording position, and a control unit configured to control the conveyance mechanism and the shift mechanism.Type: ApplicationFiled: November 19, 2010Publication date: May 26, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Kenji Shigeno, Yasuhiko Ikeda, Masahito Yoshida, Koichiro Kawaguchi, Toshiki Takeuchi, Masato Izumi, Ryosuke Sato, Kengo Nieda
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Publication number: 20110097127Abstract: In a first step, a sheet is conveyed in a direction, whereby a leading end portion of the sheet is fed to a position between a decurl roller and a decurl pinch roller, which are in positions spaced apart from each other. In a second step, the leading end portion of the sheet is curved and held by causing the decurl pinch roller to come close to or press against the decurl roller. In a third step, the leading end portion of the sheet is withdrawn from between the decurl roller and the decurl pinch roller by conveying the sheet in a direction opposed to the conveying direction. After executing the first to third steps, the sheet is conveyed in the conveying direction through the first step while the sheet is curved by the decurl roller.Type: ApplicationFiled: October 25, 2010Publication date: April 28, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Masahito Yoshida, Yasuhiko Ikeda, Kenji Shigeno, Koichiro Kawaguchi, Toshiki Takeuchi, Masato Izumi, Kengo Nieda, Ryosuke Sato
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Patent number: 7918553Abstract: This invention relates to a recording apparatus, comprising an opening delivering a recording medium after completion of recording and a cover capable of closing the opening in moving pivotally and a holding rib formed at the cover for holding a rear end as well as both sides of the delivered recording medium. The holding rib comes to be exposed when the cover is opened.Type: GrantFiled: July 14, 2009Date of Patent: April 5, 2011Assignee: Canon Kabushiki KaishaInventors: Yuji Kagami, Koichiro Kawaguchi
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Publication number: 20100330262Abstract: A method includes pulling out and conveying a sheet having splice portions, acquiring information relating to a position of an indentation on the sheet formed in addition to a splice portion, and performing processing on the sheet but a position corresponding to the acquired position of the indentation and its vicinity.Type: ApplicationFiled: June 28, 2010Publication date: December 30, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Toshiki Takeuchi, Yasuhiko Ikeda, Koichiro Kawaguchi, Kengo Nieda, Masahito Yoshida, Masato Izumi, Kenji Shigeno, Ryosuke Sato
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Publication number: 20100245515Abstract: A printer has a pair of a right side member (8) and a left side member (9) placed on opposite side portions of a base (53), rollers including a transport roller (3), a carriage chassis (12), a platen (2) and a feed unit. The right side member and the left side member are formed by molding a resin material. The roller, the carriage chassis, the platen and the feed unit are positioned and held with the pair of the right side member and the left side member.Type: ApplicationFiled: April 30, 2009Publication date: September 30, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Haruo Uchida, Yasuhiko Ikeda, Hiroyuki Saito, Kenji Shigeno, Koichiro Kawaguchi, Takaaki Ishida
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Publication number: 20100045725Abstract: A recording apparatus has a controller that controls a conveying roller and a discharge roller for conveying a recording medium. The controller controls the rotation phases of the conveying roller and the discharge roller when the recording medium leaves the conveying roller before the recording medium enters the conveying roller.Type: ApplicationFiled: August 18, 2009Publication date: February 25, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Hiroyuki Saito, Takaaki Ishida, Koichiro Kawaguchi, Toshirou Yoshiike, Jun Yasutani, Shuichi Tokuda
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Publication number: 20100044947Abstract: A recording apparatus includes a conveying roller and an ejection roller for conveying a recording medium. The recording apparatus also includes a controller which controls the conveying roller and the ejection roller. The controller selectively performs a conveyance control process for the rollers when the recording medium leaves the conveying roller.Type: ApplicationFiled: August 19, 2009Publication date: February 25, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Minoru Teshigawara, Jun Yasutani, Takeshi Yazawa, Hiroyuki Saito, Takaaki Ishida, Koichiro Kawaguchi, Toshiro Yoshiike, Shuichi Tokuda
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Patent number: 7632029Abstract: Disclosed is a recording apparatus that can accurately detect the position of a recording member, such as thick paper or a CD-R, that is mounted on a tray, that can, as much as possible, protect to-be-detected portions from being scratched, and that can perform accurate printing using a simple structure. With a configuration wherein a recording member such as thick paper or a CD-R is mounted on a tray, and wherein the recording member is printed while the tray is conveyed, a reference position detection mark, which is a to-be-detected portion, is attached to the tray from the reverse face, and the edges of a reference position detection mark that has been detected are made as the edges of a hole portion that is formed in the tray.Type: GrantFiled: August 10, 2004Date of Patent: December 15, 2009Assignee: Canon Kabushiki KaishaInventor: Koichiro Kawaguchi
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Publication number: 20090278905Abstract: A conveying apparatus is provided, the conveying apparatus comprising a lever swinging in contact with a recording medium conveyed along a conveying path in a conveying direction, a sensor detecting the swinging of the lever, a moving unit for moving the lever from a position where the lever is allowed to contact the recording medium in the conveying path to a position where the lever is retracted from the conveying path, a guide unit being movable between a first position and a second position, the guide unit guiding the recording medium conveyed in a direction opposite to the conveying direction, to the conveying path when the guide unit is located in the second position and a transmitting unit for transmitting the movement of the guide unit to the moving unit through motion of at least one member to link the movement of the guide unit from the first position to the second position with the movement of the lever to the position where the lever is retracted from the conveying path, the movement of the leverType: ApplicationFiled: April 15, 2009Publication date: November 12, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Kentaro Onuma, Hiroyuki Saito, Koichiro Kawaguchi, Motoyuki Taguchi
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Publication number: 20090273138Abstract: This invention relates to a recording apparatus, comprising an opening delivering a recording medium after completion of recording and a cover capable of closing the opening in moving pivotally and a holding rib formed at the cover for holding a rear end as well as both sides of the delivered recording medium. The holding rib comes to be exposed when the cover is opened.Type: ApplicationFiled: July 14, 2009Publication date: November 5, 2009Applicant: CANON KABUSHIKI KAISHAInventors: YUJI KAGAMI, KOICHIRO KAWAGUCHI
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Patent number: 7578590Abstract: This invention relates to a recording apparatus, comprising an opening delivering a recording medium after completion of recording and a cover capable of closing the opening in moving pivotally and a holding rib formed at the cover for holding a rear end as well as both sides of the delivered recording medium. The holding rib comes to be exposed when the cover is opened.Type: GrantFiled: May 9, 2008Date of Patent: August 25, 2009Assignee: Canon Kabushiki KaishaInventors: Yuji Kagami, Koichiro Kawaguchi