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1. 发明授权

US09864296B2 Optical scanner and image forming device incorporating same 有权
公开(公告)号：US09864296B2
公开(公告)日：2018-01-09
申请号：US14643122
申请日：2015-03-10
申请人： Tomoya Fujii , Tadashi Nakamura , Nobuyuki Arai , Yoshinobu Sakaue , Noboru Kusunose , Daisuke Imaki
发明人： Tomoya Fujii , Tadashi Nakamura , Nobuyuki Arai , Yoshinobu Sakaue , Noboru Kusunose , Daisuke Imaki
IPC分类号： G03G15/043 , G02B26/12 , G03G15/04
CPC分类号： G03G15/0435 , G02B26/124 , G02B26/127 , G03G15/04045
摘要： An optical scanner includes a light source including a plurality of light emitting elements, a polygon mirror which deflects light from the light source for scanning a surface of a subject, an optical element arranged between the light source and the polygon mirror, having optical power in a sub scanning direction, a synchronous detector which detects the light deflected by the polygon mirror for synchronous detection and generates a signal for controlling a timing at which the scanning of the surface is started, and a fixing element which secures one end of the optical element. The light emitting elements of the light source are aligned with a certain tilt angle relative to the sub scanning direction. Light from one of the light emitting elements disposed closest to the fixing element in a main scanning direction is used for synchronous detection.

2. 发明申请

US20090066780A1 Image forming apparatus, optical writing device, and optical writing method 有权
标题翻译：图像形成装置，光学写入装置和光学写入方法
公开(公告)号：US20090066780A1
公开(公告)日：2009-03-12
申请号：US12230987
申请日：2008-09-09
申请人： Kazunori Bannai , Hideto Higaki , Daisuke Imaki , Noboru Kusunose , Yoshinobu Sakaue
发明人： Kazunori Bannai , Hideto Higaki , Daisuke Imaki , Noboru Kusunose , Yoshinobu Sakaue
IPC分类号： B41J2/47
CPC分类号： B41J2/473 , G02B26/123 , G03G15/04036 , G03G15/0409 , G03G15/0435
摘要： An image forming apparatus includes a plurality of image carriers and an optical writing device including light sources that emit light beams of different wavelengths, a deflector that deflects the light beams emitted from the light sources and synthesized on an identical axis in a sub-scanning direction, a first beam separator, a second beam separator, a first imaging device, and a second imaging device. The first beam separator and the second beam separator are located between the first imaging device and the second imaging device and transmit or reflect the light beams according to travel directions or wavelengths thereof. One of the targets is scanned with the light beam transmitted through the second beam separator. Another target is scanned with the light beam reflected by the second and first beam separators. The first and second imaging devices narrow the beams in the main scanning direction and the sub-scanning direction, respectively.
摘要翻译：图像形成装置包括多个图像载体和包括发射不同波长的光束的光源的光学写入装置，偏转器，其使从光源射出的光束在副扫描方向上在同一轴上合成第一光束分离器，第二光束分离器，第一成像装置和第二成像装置。第一光束分离器和第二光束分离器位于第一成像装置和第二成像装置之间，并根据其行进方向或波长透射或反射光束。用通过第二光束分离器传输的光束扫描其中一个目标。用第二和第一光束分离器反射的光束扫描另一个目标。第一和第二成像装置分别在主扫描方向和副扫描方向上使光束变窄。

3. 发明授权

US07986334B2 Image forming apparatus, optical writing device, and optical writing method 有权
标题翻译：图像形成装置，光学写入装置和光学写入方法
公开(公告)号：US07986334B2
公开(公告)日：2011-07-26
申请号：US12230987
申请日：2008-09-09
申请人： Kazunori Bannai , Hideto Higaki , Daisuke Imaki , Noboru Kusunose , Yoshinobu Sakaue
发明人： Kazunori Bannai , Hideto Higaki , Daisuke Imaki , Noboru Kusunose , Yoshinobu Sakaue
IPC分类号： B41J2/47 , B41J27/00
CPC分类号： B41J2/473 , G02B26/123 , G03G15/04036 , G03G15/0409 , G03G15/0435
摘要： An image forming apparatus includes a plurality of image carriers and an optical writing device including light sources that emit light beams of different wavelengths, a deflector that deflects the light beams emitted from the light sources and synthesized on an identical axis in a sub-scanning direction, a first beam separator, a second beam separator, a first imaging device, and a second imaging device. The first beam separator and the second beam separator are located between the first imaging device and the second imaging device and transmit or reflect the light beams according to travel directions or wavelengths thereof. One of the targets is scanned with the light beam transmitted through the second beam separator. Another target is scanned with the light beam reflected by the second and first beam separators. The first and second imaging devices narrow the beams in the main scanning direction and the sub-scanning direction, respectively.
摘要翻译：图像形成装置包括多个图像载体和包括发射不同波长的光束的光源的光学写入装置，偏转器，其使从光源射出的光束在副扫描方向上在同一轴上合成第一光束分离器，第二光束分离器，第一成像装置和第二成像装置。第一光束分离器和第二光束分离器位于第一成像装置和第二成像装置之间，并根据其行进方向或波长透射或反射光束。用通过第二光束分离器传输的光束扫描其中一个目标。用第二和第一光束分离器反射的光束扫描另一个目标。第一和第二成像装置分别在主扫描方向和副扫描方向上使光束变窄。

4. 发明授权

US10507995B2 Sheet conveying device, image reading device, and image forming apparatus 有权
公开(公告)号：US10507995B2
公开(公告)日：2019-12-17
申请号：US16100376
申请日：2018-08-10
申请人： Munekazu Hirata , Satoshi Narai , Yasunobu Youda , Tatsuaki Nagano , Takayuki Andoh , Daisuke Imaki , Tomoya Fujii , Toshiyuki Horikawa , Koji Hatayama , Kaoru Tada , Naoto Kitamura
发明人： Munekazu Hirata , Satoshi Narai , Yasunobu Youda , Tatsuaki Nagano , Takayuki Andoh , Daisuke Imaki , Tomoya Fujii , Toshiyuki Horikawa , Koji Hatayama , Kaoru Tada , Naoto Kitamura
IPC分类号： B65H3/52 , B65H3/06
摘要： A sheet conveying device includes a separator to separate a sheet from sheets. The separator includes a separation conveyor; a separation resistance member to press against the separation conveyor via the sheet; a resistance-member holder; a biasing member to contact and bias the resistance-member holder to press the separation resistance member toward the separation conveyor, the resistance-member holder to rotate about a resistance-member rotary shaft to separate from the biasing member in detaching from an apparatus body; and a biasing-member holder configured to rotate about a biasing-member rotary shaft to more incline the biasing member in a state, in which the biasing member is spaced apart from the resistance-member holder, in a moving direction of the resistance-member holder to detach from the apparatus body than the biasing member in a biasing state in which the biasing member biases the resistance-member holder in contact with the resistance-member holder.

5. 发明授权

US07880760B2 Optical writing device and image forming apparatus 有权
标题翻译：光写入装置和图像形成装置
公开(公告)号：US07880760B2
公开(公告)日：2011-02-01
申请号：US12396140
申请日：2009-03-02
申请人： Kazunori Bannai , Daisuke Imaki
发明人： Kazunori Bannai , Daisuke Imaki
IPC分类号： B41J2/435 , B41J2/47 , G02B26/10
CPC分类号： G03G15/326 , G02B26/123 , G03G15/0435 , G03G2215/0404
摘要： A first beam separation device is arranged either to allow the light beams to enter and pass or to reflect the light beams in accordance with a direction of entrance of the light beams. A second beam separation device is provided either to allow or to reflect the light beams having passed through the first beam separation device in accordance a wavelength thereof. The light beam passing through the second beam separation device scans one of plural scan objectives and the light beam reflected by the second beam separation device is further reflected by the first beam separation device and then scans the other one of the plural scan objectives. A first imaging device is provided to correct a f-theta (fθ) performance and a curvature of an imaging plane to enable the light beams to scan the plural scan objectives at a constant speed. The first imaging device is integral with the first beam separation device.
摘要翻译：第一光束分离装置被设置成允许光束根据光束的入射方向进入并通过或反射光束。第二光束分离装置被设置成允许或反射根据其波长穿过第一光束分离装置的光束。穿过第二光束分离装置的光束扫描多个扫描物镜中的一个，由第二光束分离装置反射的光束被第一光束分离装置进一步反射，然后扫描多个扫描目标中的另一个。提供第一成像装置以校正成像平面的f-θ（f＆amp;θ）性能和曲率，以使得光束以恒定的速度扫描多个扫描物镜。第一成像装置与第一光束分离装置成一体。

6. 发明授权

US10027831B2 Image reading unit 有权
公开(公告)号：US10027831B2
公开(公告)日：2018-07-17
申请号：US15348782
申请日：2016-11-10
申请人： Takuji Kawai , Yasunobu Youda , Yohei Osanai , Tatsuaki Nagano , Satoshi Narai , Toshiyuki Horikawa , Daisuke Imaki , Takayuki Andoh , Susumu Miyazaki , Tetsuo Inui , Yuki Fujii , Koichi Ono , Takeshi Shikama , Shingo Shiramura , Hideo Tanaka
发明人： Takuji Kawai , Yasunobu Youda , Yohei Osanai , Tatsuaki Nagano , Satoshi Narai , Toshiyuki Horikawa , Daisuke Imaki , Takayuki Andoh , Susumu Miyazaki , Tetsuo Inui , Yuki Fujii , Koichi Ono , Takeshi Shikama , Shingo Shiramura , Hideo Tanaka
IPC分类号： H04N1/04 , H04N1/00
摘要： An image-reading unit includes an original document conveyor that includes a first original document tray to hold an original document to be read, a first original document feeding port to feed the original document placed on the first original document tray, and an original document conveying path to convey the original document from the first original document feeding port to an original document discharging port. The original document conveyor further includes an openable second original document tray attached near an intermediate portion of the original document conveying path to hold an original document when opened, and a second original document feeding port to feed the original document on the second original document tray. The image-reading unit further includes an image reader to read an image of the original document being conveyed along the original document conveying path.

7. 发明授权

US10044898B2 Image reading device and image forming apparatus incorporating the image reading device 有权
公开(公告)号：US10044898B2
公开(公告)日：2018-08-07
申请号：US15461873
申请日：2017-03-17
申请人： Yohei Osanai , Yasunobu Youda , Masatoshi Ishida , Tatsuaki Nagano , Daisuke Imaki , Satoshi Narai , Toshiyuki Horikawa , Takuji Kawai
发明人： Yohei Osanai , Yasunobu Youda , Masatoshi Ishida , Tatsuaki Nagano , Daisuke Imaki , Satoshi Narai , Toshiyuki Horikawa , Takuji Kawai
IPC分类号： H04N1/04 , H04N1/10 , H04N1/00
摘要： An image reading device, which is included in an image forming apparatus, includes a first transparent body, a second transparent body, a holding body, and a reading body. The second transparent body is disposed separated from and inclined at a predetermined angle to the first transparent body. The holding body holds the first and second transparent bodies. The reading body moves in a sub-scanning direction along the first and second transparent bodies. The holding body includes a flat face and a frame-shaped face. The flat face is contiguous to the first transparent body on a same plane and smoothly connected with the second transparent body. The frame-shaped face projects outwardly beyond the second transparent body facing the reading body. The reading body moves and contacts the first transparent body and the holding body, and moves with a gap relative to the second transparent body.

8. 发明授权

US10200564B2 Image reading device, method and non-transitory computer-readable medium for detecting moving image reader positions to correct skew 有权
公开(公告)号：US10200564B2
公开(公告)日：2019-02-05
申请号：US15397768
申请日：2017-01-04
申请人： Yuki Fujii , Yasunobu Youda , Yohei Osanai , Tatsuaki Nagano , Satoshi Narai , Toshiyuki Horikawa , Takuji Kawai , Daisuke Imaki , Takayuki Andoh , Susumu Miyazaki , Tetsuo Inui , Koichi Ono , Takeshi Shikama , Shingo Shiramura , Hideo Tanaka
发明人： Yuki Fujii , Yasunobu Youda , Yohei Osanai , Tatsuaki Nagano , Satoshi Narai , Toshiyuki Horikawa , Takuji Kawai , Daisuke Imaki , Takayuki Andoh , Susumu Miyazaki , Tetsuo Inui , Koichi Ono , Takeshi Shikama , Shingo Shiramura , Hideo Tanaka
IPC分类号： H04N1/387 , H04N1/04 , H04N1/047
摘要： An image reading device includes: a reading unit; a first detecting unit that detects a position of the reading unit in the sub-scanning direction; a second detecting unit that detects a position of the reading unit in the sub-scanning direction; and a calculating unit that calculates a skew quantity and a skew direction of the reading unit, based on a difference, introduced by the skew, between a travel distance by which the reading unit has travelled from a measurement reference position located on an upstream side of the first detecting unit and the second detecting unit in a moving direction to a point where the reading unit is detected by the first detecting unit, and a travel distance by which the reading unit has travelled from the measurement reference position to a point where the reading unit is detected by the second detecting unit.

9. 发明申请

US20100034563A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US20100034563A1
公开(公告)日：2010-02-11
申请号：US12534896
申请日：2009-08-04
申请人： Hiroyoshi Funato , Kazunori Bannai , Daisuke Imaki , Yoshinori Hayashi , Makoto Hirakawa
发明人： Hiroyoshi Funato , Kazunori Bannai , Daisuke Imaki , Yoshinori Hayashi , Makoto Hirakawa
IPC分类号： G03G15/04 , G02B26/10
CPC分类号： G02B26/123 , G02B26/125 , G02B27/283 , G03G15/011 , G03G15/04036 , G03G15/0435 , G03G2215/0404
摘要： P-polarized light beam passing through an fθ lens passes through a polarization beam splitter, is converted into S-polarized light beam by a quarter-wave plate and a reflecting mirror, re-enters the polarization beam splitter, and is reflected at the polarization beam splitter in the −Z direction. An optical path of a light beam between a polygon mirror and the fθ lens, between the fθ lens and the polarization beam splitter, between the polarization beam splitter and the quarter-wave plate, between the quarter-wave plate and a reflecting mirror, between the reflecting mirror and the quarter-wave plate, and between the quarter-wave plate and the polarization beam splitter are in the same plane.
摘要翻译：通过透镜透镜的P偏振光束通过偏振分束器，通过四分之一波片和反射镜转换成S偏振光束，重新进入偏振分束器，并以偏振反射分束器在-Z方向。在多面镜和透镜之间的光束之间的光路，在透镜和偏振分束器之间，在偏振分束器和四分之一波片之间，在四分之一波片和反射镜之间，在反射镜和四分之一波片，四分之一波片和偏振分束器之间在同一平面内。

10. 发明授权

US10412246B2 Image reading unit 有权
公开(公告)号：US10412246B2
公开(公告)日：2019-09-10
申请号：US16008432
申请日：2018-06-14
申请人： Takuji Kawai , Yasunobu Youda , Yohei Osanai , Tatsuaki Nagano , Satoshi Narai , Toshiyuki Horikawa , Daisuke Imaki , Takayuki Andoh , Susumu Miyazaki , Tetsuo Inui , Yuki Fujii , Koichi Ono , Takeshi Shikama , Shingo Shiramura , Hideo Tanaka
发明人： Takuji Kawai , Yasunobu Youda , Yohei Osanai , Tatsuaki Nagano , Satoshi Narai , Toshiyuki Horikawa , Daisuke Imaki , Takayuki Andoh , Susumu Miyazaki , Tetsuo Inui , Yuki Fujii , Koichi Ono , Takeshi Shikama , Shingo Shiramura , Hideo Tanaka
IPC分类号： H04N1/04 , H04N1/00
摘要： An image-reading unit includes an original document conveyor that includes a first original document tray to hold an original document to be read, a first original document feeding port to feed the original document placed on the first original document tray, and an original document conveying path to convey the original document from the first original document feeding port to an original document discharging port. The original document conveyor further includes an openable second original document tray attached near an intermediate portion of the original document conveying path to hold an original document when opened, and a second original document feeding port to feed the original document on the second original document tray. The image-reading unit further includes an image reader to read an image of the original document being conveyed along the original document conveying path.

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