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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Publication number: 20080265481Abstract: 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: ApplicationFiled: April 22, 2008Publication date: October 30, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Haruo Uchida, Kenji Kawazoe, Nozomu Nishiberi, Koichiro Kawaguchi, Yoshiaki Watanabe, Yasuyuki Asai, Mitsuru Kondo
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Publication number: 20080265496Abstract: A recording apparatus includes a platen that guides a sheet, restraining members disposed on the platen at respective side edges of the sheet to restrain the side edges of the sheet from being raised, a sheet width detector that detects the width of the sheet, and a restraining member detector that detects the positions of the restraining members. At least one of the restraining members is moved in accordance with the information obtained by the sheet width detector regarding the positions of the side edges of the sheet and the information obtained by the restraining position detector regarding the positions of the restraining members.Type: ApplicationFiled: April 22, 2008Publication date: October 30, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Koichiro Kawaguchi, Kenji Kawazoe, Haruo Uchida, Nozomu Nishiberi, Yoshiaki Watanabe, Yasuyuki Asai, Mitsuru Kondo
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Publication number: 20080218578Abstract: 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: ApplicationFiled: March 4, 2008Publication date: September 11, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Masaaki Ishihara, Koichiro Kawaguchi
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Publication number: 20080211167Abstract: 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: May 9, 2008Publication date: September 4, 2008Applicant: CANON KABUSHIKI KAISHAInventors: YUJI KAGAMI, KOICHIRO KAWAGUCHI
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Patent number: 7413361Abstract: When the trailing edge of a recording sheet is released from a nip of a first pair of rollers which hold and convey the recording sheet, on the upstream side in the conveyance path, a variance of electric power for driving the first pair of rollers is detected, and image data to be outputted to the print head is shifted to the upstream side in the conveyance direction of the recording sheet, so that the print head is driven. As a result, it is possible to prevent the positional shift of image due to the conveyance error of the recording sheet caused when the recording sheet is released from the nip.Type: GrantFiled: October 24, 2005Date of Patent: August 19, 2008Assignee: Canon Kabushiki KaishaInventor: Koichiro Kawaguchi
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Patent number: 7387382Abstract: 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: November 29, 2005Date of Patent: June 17, 2008Assignee: Canon Kabushiki KaishaInventors: Yuji Kagami, Koichiro Kawaguchi
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Patent number: 7158259Abstract: A printing apparatus drive control method is provided which allows the user to select a drive mode in which a printing apparatus can be operated with reduced operation noise whatever print mode is set, such as a fine print mode or a fast print mode, thus eliminating a problem of emitting noisy operation sound to surroundings late at night when a level of noise is comparatively low. One or more of a plurality of motors, which cause a plurality of driven portions in the printing apparatus, such as paper supply unit, main scan unit and paper feed unit, to perform predetermined operations, can be driven in a normal drive mode or a silent drive mode selectively.Type: GrantFiled: September 9, 2004Date of Patent: January 2, 2007Assignee: Canon Kabushiki KaishaInventors: Noriyuki Sugiyama, Yuji Nakano, Koichiro Kawaguchi, Hiroyuki Saito
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Publication number: 20060098073Abstract: When the trailing edge of a recording sheet is released from a nip of a first pair of rollers which hold and convey the recording sheet, on the upstream side in the conveyance path, a variance of electric power for driving the first pair of rollers is detected, and image data to be outputted to the print head is shifted to the upstream side in the conveyance direction of the recording sheet, so that the print head is driven. As a result, it is possible to prevent the positional shift of image due to the conveyance error of the recording sheet caused when the recording sheet is released from the nip.Type: ApplicationFiled: October 24, 2005Publication date: May 11, 2006Applicant: CANON KABUSHIKI KAISHAInventor: Koichiro Kawaguchi
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Publication number: 20060082633Abstract: 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: November 29, 2005Publication date: April 20, 2006Applicant: Canon Kabushiki KaishaInventors: Yuji Kagami, Koichiro Kawaguchi
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Patent number: 6991331Abstract: 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: June 24, 2003Date of Patent: January 31, 2006Assignee: Canon Kabushiki KaishaInventors: Yuji Kagami, Koichiro Kawaguchi
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Patent number: 6939064Abstract: It is an object of the present invention to use a simple configuration to reduce the deviate of an image printed position caused by the behavior of a print sheet when the back end of the sheet slips out from an upstream roller pair. Thus, the present invention provides a printing apparatus including transporting section for transporting a print medium relative to printing heads for printing an image on a print sheet, the apparatus comprising vibrating section for vibrating the transporting section. This vibrating section vibrates the transporting section before the printing heads start a printing operation. Thus, even if the transporting section is stopped at an unstable position when a transporting operation is stopped, the applied vibration brings the transporting section into a stable state sufficiently before a printing operation is started.Type: GrantFiled: January 30, 2002Date of Patent: September 6, 2005Assignee: Canon Kabushiki KaishaInventors: Koichiro Kawaguchi, Yuji Nakano, Haruyuki Yanagi, Hiroyuki Saito
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Patent number: 6909447Abstract: A recording apparatus for recording on a recording sheet by recording means comprises a conveying roller for conveying a recording sheet on the upstream side of recording means in the recording sheet conveying direction, plural discharging rollers for conveying a recording sheet on the downstream side of recording means in the recording sheet conveying direction, and a common driving source for driving the plural discharging rollers. For this recording apparatus the driving force of the driving source is transmitted first to a discharging roller on the outermost downstream side in the recording sheet conveying direction. With the structure thus arranged, this recording apparatus is capable of forming images in good condition on the rear portion of a recording sheet by enhancing the conveyance precision only by use of discharging rollers without any significant cost increase for a recording apparatus provided with plural discharging rollers.Type: GrantFiled: August 9, 2002Date of Patent: June 21, 2005Assignee: Canon Kabushiki KaishaInventors: Koichiro Kawaguchi, Noriyuki Sugiyama
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Patent number: 6908168Abstract: An inkjet printing apparatus includes a transportation roller unit and discharging roller units to transport printing media. When printing an image on a front end portion of the printing medium, ink is ejected from a partial number of nozzles of a print head on a side near to the transportation roller unit. When the printing medium is transported by both the transportation roller unit and the discharging roller unit, ink is ejected from all the nozzles of the print head. When printing an image on a rear end portion of the printing medium, ink is ejected from a partial number of nozzles of a print head on a side near to the discharging roller unit.Type: GrantFiled: August 19, 2003Date of Patent: June 21, 2005Assignee: Canon Kabushiki KaishaInventor: Koichiro Kawaguchi
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Patent number: 6890114Abstract: A discharging unit has multiple discharging rollers for transporting sheets downstream from a recording head in the direction of transporting, arrayed in the direction of transporting. Of the multiple discharging rollers, a second discharging roller disposed farthest downstream in the sheet transporting direction is formed with higher precision than a first discharging roller disposed further upstream.Type: GrantFiled: December 9, 2003Date of Patent: May 10, 2005Assignee: Canon Kabushiki KaishaInventor: Koichiro Kawaguchi
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Patent number: 6869235Abstract: A recording apparatus can mount a special recording material, such as a compact disc (CD) or the like, in a state of being accommodated in a tray and perform recording on the special recording material. In this recording apparatus, by an operation of mounting a tray guide into the main body of the recording apparatus, an arm of the tray guide is inserted between a spur base for holding a spur, and a platen for holding sheet discharge rollers. The spur base thereby raises to separate the spur from the sheet discharge roller, and a space to allow passage of the tray is formed.Type: GrantFiled: June 17, 2003Date of Patent: March 22, 2005Assignee: Canon Kabushiki KaishaInventors: Koichiro Kawaguchi, Shinji Murata, Masanori Kaneko, Noriyuki Sugiyama, Hiroyuki Saito, Koya Iwakura
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Publication number: 20050041054Abstract: 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: ApplicationFiled: August 10, 2004Publication date: February 24, 2005Inventor: Koichiro Kawaguchi
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Publication number: 20050030325Abstract: A printing apparatus drive control method is provided which allows the user to select a drive mode in which a printing apparatus can be operated with reduced operation noise whatever print mode is set, such as a fine print mode or a fast print mode, thus eliminating a problem of emitting noisy operation sound to surroundings late at night when a level of noise is comparatively low. One or more of a plurality of motors, which cause a plurality of driven portions in the printing apparatus, such as paper supply unit, main scan unit and paper feed unit, to perform predetermined operations, can be driven in a normal drive mode or a silent drive mode selectively.Type: ApplicationFiled: September 9, 2004Publication date: February 10, 2005Applicant: Canon Kabushiki KaishaInventors: Noriyuki Sugiyama, Yuji Nakano, Koichiro Kawaguchi, Hiroyuki Saito
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Patent number: 6824234Abstract: A printing apparatus drive control method is provided which allows the user to select a drive mode in which a printing apparatus can be operated with reduced operation noise whatever print mode is set, such as a fine print mode or a fast print mode, thus eliminating a problem of emitting noisy operation sound to surroundings late at night when a level of noise is comparatively low. One or more of a plurality of motors, which cause a plurality of driven portions in the printing apparatus, such as paper supply unit, main scan unit and paper feed unit, to perform predetermined operations, can be driven in a normal drive mode or a silent drive mode selectively.Type: GrantFiled: September 23, 2002Date of Patent: November 30, 2004Assignee: Canon Kabushiki KaishaInventors: Noriyuki Sugiyama, Yuji Nakano, Koichiro Kawaguchi, Hiroyuki Saito
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Patent number: 6786663Abstract: A discharging unit has multiple discharging rollers for transporting sheets downstream from a recording head in the direction of transporting, arrayed in the direction of transporting. Of the multiple discharging rollers, a second discharging roller disposed farthest downstream in the sheet transporting direction is formed with higher precision than a first discharging roller disposed further upstream.Type: GrantFiled: July 10, 2001Date of Patent: September 7, 2004Assignee: Canon Kabushiki KaishaInventor: Koichiro Kawaguchi
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Patent number: 6761425Abstract: A printing apparatus includes a printing section for performing a printing operation on a print medium and a sheet transporting section having a pair of opposite rollers that transport a print medium by rotating while sandwiching the print sheet therebetween. Further, a storage section stores positional information representative of the nip position at which an end of a print medium P is sandwiched between the pair of rollers.Type: GrantFiled: February 26, 2002Date of Patent: July 13, 2004Assignee: Canon Kabushiki KaishaInventors: Koichiro Kawaguchi, Haruyuki Yanagi