公开(公告)号：US20080285104A1

公开(公告)日：2008-11-20

申请号：US12119859

申请日：2008-05-13

申请人： Nobuyuki ARAI ,  Yoshinori HAYASHI ,  Naoto WATANABE

发明人： Nobuyuki ARAI ,  Yoshinori HAYASHI ,  Naoto WATANABE

IPC分类号： G02B26/12 ,  G02B26/10

CPC分类号： B41J2/471 ,  G02B26/123 ,  G02B26/127 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/0471 ,  H04N2201/04713 ,  H04N2201/04744

摘要： An optical scanner includes a plurality of scanning optical systems each of which scans a different surface to be scanned and includes a light source configured to emit a light beam, an optical deflector having a plurality of reflection surfaces, and a synchronization detector configured to receive the light beam deflected by the optical deflector and detect a timing to scan an effective area of the surface to be scanned with the deflected light beam before a scanning is started or after the scanning is completed. The synchronization detector of one of a pair of scanning optical systems is disposed on a scanning end side to determine the scanning timing, and the synchronization detector of the other one of the pair of scanning optical systems is disposed on a scanning start side to determine the scanning timing.

摘要翻译： 光学扫描仪包括多个扫描光学系统，每个扫描光学系统扫描要扫描的不同表面，并且包括被配置为发射光束的光源，具有多个反射表面的光学偏转器，以及配置成接收 光束由光学偏转器偏转，并且在扫描开始之前或扫描完成之后检测用偏转光束扫描的待扫描表面的有效区域的定时。 一对扫描光学系统中的一个的同步检测器被设置在扫描端侧以确定扫描定时，并且一对扫描光学系统中的另一个扫描光学系统的同步检测器设置在扫描开始侧，以确定 扫描时序。

公开(公告)号：US20080204840A1

公开(公告)日：2008-08-28

申请号：US12021850

申请日：2008-01-29

申请人： Naoto WATANABE ,  Yoshinori Hayashi

发明人： Naoto WATANABE ,  Yoshinori Hayashi

IPC分类号： G02B26/10

CPC分类号： G02B26/12 ,  G02B26/123 ,  H04N1/0283 ,  H04N1/0301 ,  H04N1/047 ,  H04N1/12 ,  H04N2201/02456 ,  H04N2201/02458 ,  H04N2201/0246 ,  H04N2201/02462 ,  H04N2201/02497

摘要： An optical scanning device includes a light source, a deflector, and an image-forming optical system. The deflector includes a deflecting surface for deflecting light beams in a main scanning direction. The image-forming optical system includes two relay lenses having a positive power in the main scanning direction. The relay lenses cause main light beams of light beams emitted from the light source to cross near the deflecting surface in the main scanning direction.

摘要翻译： 光学扫描装置包括光源，偏转器和图像形成光学系统。 偏转器包括用于沿主扫描方向偏转光束的偏转表面。 图像形成光学系统包括在主扫描方向上具有正功率的两个中继透镜。 中继透镜使得从光源发射的光束的主光束在主扫描方向上在偏转表面附近交叉。

公开(公告)号：US20080218827A1

公开(公告)日：2008-09-11

申请号：US12024505

申请日：2008-02-01

申请人： Naoto WATANABE ,  Kenichiro SAISHO ,  Yoshinori HAYASHI

发明人： Naoto WATANABE ,  Kenichiro SAISHO ,  Yoshinori HAYASHI

IPC分类号： G02B26/08

CPC分类号： G02B26/124 ,  G02B26/127 ,  H04N1/1135 ,  H04N1/125 ,  H04N2201/04703 ,  H04N2201/04755 ,  H04N2201/04787

摘要： An optical scanning device includes a light source, a light-beam splitting unit, a deflector, and a scanning optical system. The light-beam splitting unit splits a light beam from the light source into a plurality of light beams, so that the light beams are each incident to any one of reflecting surfaces of the deflector while having a phase difference of approximately π/2. The scanning optical system receives the light beams from the deflector and projects each of the light beams onto a corresponding target surface.

摘要翻译： 光学扫描装置包括光源，光束分离单元，偏转器和扫描光学系统。 光束分离单元将来自光源的光束分成多个光束，使得光束各自入射到偏转器的任何一个反射面，同时具有大约π/ 2的相位差。 扫描光学系统接收来自偏转器的光束并将每个光束投射到相应的目标表面上。

公开(公告)号：US20180176414A1

公开(公告)日：2018-06-21

申请号：US15125422

申请日：2015-03-10

申请人： Muneaki IWATA ,  Masaaki ISHIDA ,  Atsufumi OMORI ,  Naoto WATANABE ,  Hayato FUJITA

发明人： Muneaki IWATA ,  Masaaki ISHIDA ,  Atsufumi OMORI ,  Naoto WATANABE ,  Hayato FUJITA

IPC分类号： H04N1/393 ,  B41J2/505 ,  H04N1/411 ,  H04N1/40

CPC分类号： H04N1/3935 ,  B41J2/505 ,  G06K9/44 ,  H04N1/113 ,  H04N1/393 ,  H04N1/40068 ,  H04N1/411

摘要： An image forming apparatus includes an image processor, a converter, a light source driver, an identifying unit, and a pattern generator. The image processor generates image data of first resolution and generates tag information indicating whether to perform image processing and associated with pixels of the image data of first resolution. The converter converts the image data of first resolution to image data of a higher second resolution. The light source driver drives a light source using a modulation signal corresponding to the image data of second resolution. The identifying unit identifies a target pixel to be subjected to image processing in the image data of first resolution based on the tag information. The pattern generator generates an image-processed pixel pattern of the second resolution according to the target pixel. The converter converts the target pixel in the image data of first resolution to the generated image-processed pixel pattern.

公开(公告)号：US20150156373A1

公开(公告)日：2015-06-04

申请号：US14556745

申请日：2014-12-01

申请人： Hayato FUJITA ,  Masaaki ISHIDA ,  Atsufumi OMORI ,  Naoto WATANABE ,  Muneaki IWATA

发明人： Hayato FUJITA ,  Masaaki ISHIDA ,  Atsufumi OMORI ,  Naoto WATANABE ,  Muneaki IWATA

IPC分类号： H04N1/40 ,  H04N1/401 ,  H04N1/028

CPC分类号： H04N1/40056 ,  H04N1/40025 ,  H04N1/401

摘要： An image forming apparatus includes: a light source; and a light source control unit that supplies a pulse drive current according to image data to the light source. An amplitude of a part of the drive current corresponding to a specified pixel of the image data is larger than an amplitude of a part of the drive current corresponding to a normal pixel of the image data that is a pixel other than the specified pixel and the pulse width of the part of the drive current corresponding to the specified pixel is smaller than the pulse width of the part of the drive current corresponding to the normal pixel.

摘要翻译： 一种图像形成装置，包括：光源; 以及光源控制单元，其将根据图像数据的脉冲驱动电流提供给光源。 对应于图像数据的指定像素的驱动电流的一部分的幅度大于与作为除了指定像素之外的像素的图像数据的法线像素相对应的驱动电流的一部分的幅度， 对应于指定像素的驱动电流的部分的脉冲宽度小于与正常像素对应的驱动电流的一部分的脉冲宽度。

公开(公告)号：US20120155899A1

公开(公告)日：2012-06-21

申请号：US13327208

申请日：2011-12-15

申请人： Naoto WATANABE ,  Tetsuya MUTO

发明人： Naoto WATANABE ,  Tetsuya MUTO

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G2215/0129 ,  G03G2215/0164

摘要： An image forming apparatus includes: a charging unit that uniformly charges a surface of a latent image carrier; a latent-image forming unit; a developing unit that performs development by causing toner to electrostatically adhere on the surface of the carrier; a transfer unit that transfers a toner image onto a recording medium; and an image-density adjusting unit that causes to form a multi-gradation patch pattern on the surface of the carrier, that causes to detect potentials of latent image patches in the multi-gradation patch pattern, that causes to detect a toner adhesion amount on each toner patch, and that performs control of an image density. One of part and all of the low-density latent image patches is a dot-dispersed latent image patch in which the arrangement of unit dot latent images in the basic dot matrix is determined so that a minimum center-to-center distance having a smallest value is maximized.

摘要翻译： 一种图像形成装置包括：对潜像载体的表面均匀充电的充电单元; 潜像形成单元; 显影单元，其通过使调色剂静电粘附在载体的表面上来进行显影; 转印单元，其将调色剂图像转印到记录介质上; 以及图像浓度调整单元，其导致在载体的表面上形成多灰度贴片图案，其导致检测多层次贴片图案中的潜像斑块的电位，导致检测调色剂附着量 每个调色剂贴片，并且执行图像浓度的控制。 低密度潜像贴片的一部分和全部是点分散潜像贴片，其中确定基本点阵中的单位点潜像的布置，使得具有最小的中心至中心的最小距离 价值最大化。

公开(公告)号：US20070091390A1

公开(公告)日：2007-04-26

申请号：US11538660

申请日：2006-10-04

申请人： Kuniyasu KIMURA ,  Naoto WATANABE ,  Yukio YOKOYAMA ,  Hiroto NISHIHARA ,  Takako HANADA

发明人： Kuniyasu KIMURA ,  Naoto WATANABE ,  Yukio YOKOYAMA ,  Hiroto NISHIHARA ,  Takako HANADA

IPC分类号： H04N1/46

CPC分类号： G03G15/50 ,  G03G2215/00037

摘要： An adjustment time reduction mode of reducing adjustment operation time is provided such that a user can set the adjustment time reduction mode in which a user arbitrarily reduces the adjustment operation time, depending on the user's situation. An apparatus performing adjustment operation at a predetermined timing, monitors a timing at which the adjustment operation is to be performed and visually notifies a user of the timing at which the adjustment operation is to be performed before execution of a job requested by the user. When the adjustment time reduction mode is set, the apparatus reduces a time for the adjustment operation during execution of the job requested by the user, and the apparatus is caused to operate in the adjustment time reduction mode until the job is completed.

摘要翻译： 提供了减少调整操作时间的调整时间缩短模式，使得用户可以根据用户的情况设置用户任意地减少调整操作时间的调整时间缩短模式。 一种在预定定时进行调整操作的装置，监视执行调整操作的定时，并且在执行用户请求的作业之前，向使用者视觉地通知用户进行调整操作的定时。 当调整时间缩短模式被设定时，该设备在执行用户请求的作业期间减少了调整操作的时间，并且使设备在调整时间缩短模式下操作直到作业完成。

公开(公告)号：US20180270397A1

公开(公告)日：2018-09-20

申请号：US15911202

申请日：2018-03-05

申请人： Naoto WATANABE

发明人： Naoto WATANABE

IPC分类号： H04N1/60 ,  H04N1/62 ,  H04N1/21

CPC分类号： H04N1/6033 ,  H04N1/2108 ,  H04N1/506 ,  H04N1/6027 ,  H04N1/62

摘要： An image forming apparatus includes a detector, a calculator, and a corrector. The detector receives brightness values obtained from an image printed based on image data. The image includes a plurality of streaks and non-streak portions having image density differences with the plurality of streaks. The detector detects a first streak width, a first brightness difference between a brightness value of the first streak and a brightness value of a non-streak portions, a second streak width wider than the first streak width, and a second brightness difference between a brightness value of the second streak and a brightness value of a non-streak portion. The calculator calculates a correction coefficient corresponding to the first streak width based on the first brightness difference and the second brightness difference. The corrector corrects an image density corresponding to the first streak width in the image data based on the calculated correction coefficient.

公开(公告)号：US20170160667A1

公开(公告)日：2017-06-08

申请号：US15440907

申请日：2017-02-23

申请人： Naoto WATANABE ,  Toshiaki TOKITA ,  Kohji SAKAI ,  Nobuaki KUBO ,  Masayuki MURANAKA

发明人： Naoto WATANABE ,  Toshiaki TOKITA ,  Kohji SAKAI ,  Nobuaki KUBO ,  Masayuki MURANAKA

IPC分类号： G03G15/043 ,  G03G15/00

CPC分类号： B41J2/473 ,  B41J2/471 ,  G02B26/123 ,  G02B26/127 ,  G02B26/129 ,  G03G15/043 ,  G03G15/505

摘要： An optical scanning apparatus includes a light source, an optical deflector having a rotary polygon mirror to deflect a light beam from the light source, a scanning optical system configured to focus the light beam deflected by the optical deflector on a target surface, a sync detecting sensor configured to determine a write start timing on the target surface, and a processing unit configured to correct detection data of the sync detecting sensor based on a measured value of a time needed for one revolution of the rotary polygon mirror.

公开(公告)号：US20130076851A1

公开(公告)日：2013-03-28

申请号：US13624182

申请日：2012-09-21

申请人： Naoto WATANABE ,  Toshiaki Tokita ,  Kohji Sakai ,  Nobuaki Kubo

发明人： Naoto WATANABE ,  Toshiaki Tokita ,  Kohji Sakai ,  Nobuaki Kubo

IPC分类号： B41J2/435 ,  G02B26/08

CPC分类号： G02B26/123 ,  B41J2/473 ,  G02B27/0018

摘要： An optical scanning device scanning scan target surfaces in a first direction with light includes: a light source emitting first and second light beams corresponding to two of the scan target surfaces; an optical deflector including a reflection surface on which the emitted first and second light beams are obliquely incident while being separated from each other in a second direction perpendicular to the first direction, and deflecting the first and second light beams; a scanning lens disposed on respective optical paths of the deflected first and second light beams; and a branching optical element transmitting therethrough most of the first light beam transmitted through the scanning lens, and reflecting most of the second light beam transmitted through the scanning lens. The deflected first and second light beams intersect between the optical deflector and the branching optical element, when projected on a plane perpendicular to the first direction.

摘要翻译： 用光扫描第一方向的扫描目标表面的光扫描装置包括：发射对应于两个扫描目标表面的第一和第二光束的光源; 光偏转器，其包括反射面，发射的第一光束和第二光束在垂直于第一方向的第二方向上彼此分离并倾斜入射，并且偏转第一和第二光束; 设置在偏转的第一和第二光束的相应光路上的扫描透镜; 以及分支光学元件，透射通过扫描透镜的第一光束的大部分，并且反射透过扫描透镜的大部分第二光束。 当投影在垂直于第一方向的平面上时，偏转的第一和第二光束在光学偏转器和分支光学元件之间相交。