公开(公告)号：US20090153641A1

公开(公告)日：2009-06-18

申请号：US12369613

申请日：2009-02-11

申请人： Hiroshi TOYAMA ,  Yujiro NOMURA ,  Ken IKUMA

发明人： Hiroshi TOYAMA ,  Yujiro NOMURA ,  Ken IKUMA

IPC分类号： G01D15/14

CPC分类号： G03G15/0409 ,  G03G15/0435 ,  G03G15/50 ,  G03G2215/0404 ,  G06K15/1204 ,  H04N1/0414 ,  H04N1/0443 ,  H04N1/0455 ,  H04N1/1135 ,  H04N1/2369 ,  H04N2201/0466 ,  H04N2201/0468

摘要： An image forming apparatus, includes: a latent image carrier whose surface includes an effective image region spanning across a predetermined width in a main scanning direction and is driven in a sub scanning direction approximately orthogonal to the main scanning direction; a latent image former which has a light source and a deflection mirror oscillating, and deflects a light beam from the light source using the deflection mirror so as to scan the effective image region with the deflected light beam; and a scanning mode controller which switches selectively between a single-side scanning mode and a double-side scanning mode, the single-side scanning mode being a mode in which the light beam is scanned only in a first direction included in the main scanning direction, the double-side scanning mode being a mode in which the light beam is scanned in both the first direction and a second direction opposite to the first direction, wherein a condition to form latent images on the latent image carrier in the single-side scanning mode is different from a condition to form latent images on the latent image carrier in the double-side scanning mode.

摘要翻译： 一种图像形成装置，包括：潜像载体，其表面包括横跨主扫描方向的预定宽度的有效图像区域，并且在与主扫描方向大致正交的副扫描方向上被驱动; 具有光源和偏转镜的振荡器，使用偏转镜使来自光源的光束偏转，以便用偏转的光束扫描有效图像区域; 以及扫描模式控制器，其在单面扫描模式和双面扫描模式之间选择性地切换，所述单面扫描模式是仅沿着包括在主扫描方向上的第一方向扫描光束的模式 ，双面扫描模式是在第一方向和与第一方向相反的第二方向上扫描光束的模式，其中在单侧扫描中在潜像载体上形成潜像的条件 模式不同于在双面扫描模式下在潜像载体上形成潜像的条件。

公开(公告)号：US20070188592A1

公开(公告)日：2007-08-16

申请号：US11670843

申请日：2007-02-02

申请人： Hiroshi TOYAMA ,  Yujiro NOMURA ,  Ken IKUMA

发明人： Hiroshi TOYAMA ,  Yujiro NOMURA ,  Ken IKUMA

IPC分类号： B41J2/47

CPC分类号： B41J2/471

摘要： A method for controlling an optical scanning apparatus, includes generating an exposing signal from a pattern data for an optical scanning apparatus, which includes a light source that emits a light beam, a deflector that deflects the light beam emitted from the light source by means of a deflection mirror surface oscillating sinusoidally, and a scanning optical system that has an arcsine characteristics and that images the light beam deflected by the deflector on a surface-to-be-scanned in a spot, and which makes the imaged spot scan the surface-to-be-scanned in the main scanning direction while modulating the light beam emitted from the light source based upon the pattern data indicating a position on the surface-to-be-scanned the light beam exposes so that the light beam exposes a predetermined position on the surface-to-be-scanned, the exposing signal being a train of pulses arranged on a time axis in accordance with an arrangement in the main scanning direction of values, which the pattern data have, indicating exposure or non-exposure of the light beam, a pulse width of each pulse of the pulses being width of time corresponding to a length, indicated by the pattern data, in the main scanning direction of an exposing area of the light beam; correcting the exposing signal to generate a corrected exposing signal by varying pulse width of each pulse of the pulses which compose the exposing signal in accordance with a distance between the exposing area corresponding to the pulse and an optical axis of the scanning optical system; and emitting the light beam from the light the light beam is/are varied in accordance with a distance between the exposing area and an optical axis of the scanning optical system.

摘要翻译： 一种用于控制光学扫描装置的方法，包括从用于光学扫描装置的图案数据产生曝光信号，所述图案数据包括发射光束的光源，偏转器，其使从光源发射的光束通过 偏光镜表面正弦振荡，以及扫描光学系统，其具有反正弦特性，并且将由偏转器偏转的光束成像在点上将被扫描的表面上，并且使得成像的点扫描表面 - 在主扫描方向上被扫描，同时基于指示待扫描的表面上的光束的位置的图案数据调制从光源发射的光束，使得光束暴露于预定位置 在要被扫描的表面上，曝光信号是根据主扫描方向上的布置在时间轴上布置的一串脉冲，其中th e图案数据具有指示光束的曝光或不曝光的脉冲宽度，脉冲宽度对应于由图案数据指示的长度的时间宽度，所述长度在曝光区域的主扫描方向上 光束; 通过根据与脉冲对应的曝光区域与扫描光学系统的光轴之间的距离，改变构成曝光信号的脉冲的每个脉冲的脉冲宽度来校正曝光信号以产生校正曝光信号; 并且根据所述扫描光学系统的所述曝光区域和光轴之间的距离，从所述光发射所述光束的光束变化。

公开(公告)号：US20080253808A1

公开(公告)日：2008-10-16

申请号：US12138266

申请日：2008-06-12

申请人： Hiroshi TOYAMA ,  Yujiro NOMURA ,  Ken IKUMA

发明人： Hiroshi TOYAMA ,  Yujiro NOMURA ,  Ken IKUMA

IPC分类号： G03G15/04

CPC分类号： B41J2/471 ,  G02B26/105 ,  H04N1/40037 ,  H04N1/4055

摘要： An image forming method using an image forming apparatus including: a latent image carrier whose surface is driven in a sub scanning direction; a deflector which scans a beam spot reciprocally in a main scanning direction substantially perpendicular to the sub scanning direction on the surface of the latent image carrier in the use of an oscillating deflect mirror so as to form spot latent images each of which formed on a pixel; developer which develops each of the spot latent images as a pixel-dot, the method includes of: halftoning for a tone reproduction in which a halftone-dot constituted by the pixel-dot(s) is formed on a cell consisting plural pixels according to a fattening type threshold matrix, wherein a plurality of cells are contiguously arranged in the main scanning direction so as to form a plurality of contiguous locations at each of which the cells adjoin mutually in the main scanning direction, each cell includes a larger-than-four even number of pixels in the sub scanning direction, and the cells, which mutually adjoin at a particular contiguous location out of the plurality of contiguous locations, are mutually shifted by an odd number of pixel(s) in the sub scanning direction.

摘要翻译： 一种使用图像形成装置的图像形成方法，包括：潜像载体，其表面沿副扫描方向驱动; 偏转器，其使用振荡偏转镜，在潜像载体的表面上基本上垂直于副扫描方向的主扫描方向上往复地扫描光束点，以形成每个形成在像素上的点潜像 ; 显影剂将每个点潜像显影为像素点，该方法包括：对于由多个像素构成的单元形成由像素点构成的半色调点的色调再现的半色调，根据 育肥型阈值矩阵，其中多个单元在主扫描方向上连续排列，以便在每个单元在主扫描方向上相互相邻地形成多个连续位置，每个单元包括大于 在子扫描方向上的四个偶数个像素，并且在多个相邻位置中的特定连续位置处相互邻接的单元在副扫描方向上相互移位奇数个像素。

公开(公告)号：US20070046767A1

公开(公告)日：2007-03-01

申请号：US11463155

申请日：2006-08-08

申请人： Hiroshi TOYAMA ,  Yujiro NOMURA ,  Ken IKUMA

发明人： Hiroshi TOYAMA ,  Yujiro NOMURA ,  Ken IKUMA

IPC分类号： B41J2/455

CPC分类号： B41J2/471 ,  G02B26/105 ,  H04N1/40037 ,  H04N1/4055

摘要： An image forming method using an image forming apparatus including: a latent image carrier whose surface is driven in a sub scanning direction; a deflector which scans a beam spot reciprocally in a main scanning direction substantially perpendicular to the sub scanning direction on the surface of the latent image carrier in the use of an oscillating deflect mirror so as to form spot latent images each of which formed on a pixel; developer which develops each of the spot latent images as a pixel-dot, the method includes of: halftoning for a tone reproduction in which a halftone-dot constituted by the pixel-dot(s) is formed on a cell consisting plural pixels according to a fattening type threshold matrix, wherein a plurality of cells are contiguously arranged in the main scanning direction so as to form a plurality of contiguous locations at each of which the cells adjoin mutually in the main scanning direction, each cell includes a larger-than-four even number of pixels in the sub scanning direction, and the cells, which mutually adjoin at a particular contiguous location out of the plurality of contiguous locations, are mutually shifted by an odd number of pixel(s) in the sub scanning direction.

摘要翻译： 一种使用图像形成装置的图像形成方法，包括：潜像载体，其表面沿副扫描方向驱动; 偏转器，其使用振荡偏转镜，在潜像载体的表面上基本上垂直于副扫描方向的主扫描方向上往复地扫描光束点，以形成每个形成在像素上的点潜像 ; 显影剂将每个点潜像显影为像素点，该方法包括：对于由多个像素构成的单元形成由像素点构成的半色调点的色调再现的半色调，根据 育肥型阈值矩阵，其中多个单元在主扫描方向上连续排列，以便在每个单元在主扫描方向上相互相邻地形成多个连续位置，每个单元包括大于 在子扫描方向上的四个偶数个像素，并且在多个相邻位置中的特定连续位置处相互邻接的单元在副扫描方向上相互移位奇数个像素。

公开(公告)号：US20110150511A1

公开(公告)日：2011-06-23

申请号：US13031070

申请日：2011-02-18

申请人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

发明人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

IPC分类号： G03G15/043

CPC分类号： H04N1/506 ,  H04N1/113

摘要： The apparatus is adapted to deflect a light beam from a laser light source for each of the color components by means of a deflection mirror surface which oscillates, thereby making the light beam reciprocally scan in a main scanning direction. In this apparatus, however, only a light beam SL which scans in a first direction (+X) of the main scanning direction is irradiated in an effective image region on a photosensitive member, so as to form a latent image thereon. The resultant latent image is developed to form a toner image. Since image formation is performed using only the light beam SL which scans in the first direction (+X), the images may be formed at the consistent density irrespective of the image types. Furthermore, the scanning directions of the light beams SL for all the color components are uniformly defined to be the first direction (+X), so that the toner images of the respective colors may maintain the consistent density.

摘要翻译： 该装置适于通过振荡的偏转镜面来偏转来自激光光源的每个颜色分量的光束，从而使光束在主扫描方向上往复扫描。 然而，在该装置中，只有在主扫描方向的第一方向（+ X）上扫描的光束SL被照射在感光构件上的有效图像区域中，以便在其上形成潜像。 显影所得潜像以形成调色剂图像。 由于仅使用沿第一方向（+ X）扫描的光束SL执行图像形成，所以可以以一致的浓度形成图像，而与图像类型无关。 此外，用于所有颜色分量的光束SL的扫描方向被均匀地限定为第一方向（+ X），使得各种颜色的调色剂图像可以保持一致的密度。

公开(公告)号：US20090034026A1

公开(公告)日：2009-02-05

申请号：US12245524

申请日：2008-10-03

申请人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

发明人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

IPC分类号： H04N1/04

CPC分类号： H04N1/506 ,  H04N1/113

摘要： The apparatus is adapted to deflect a light beam from a laser light source for each of the color components by means of a deflection mirror surface which oscillates, thereby making the light beam reciprocally scan in a main scanning direction. In this apparatus, however, only a light beam SL which scans in a first direction (+X) of the main scanning direction is irradiated in an effective image region on a photosensitive member, so as to form a latent image thereon. The resultant latent image is developed to form a toner image. Since image formation is performed using only the light beam SL which scans in the first direction (+X), the images may be formed at the consistent density irrespective of the image types. Furthermore, the scanning directions of the light beams SL for all the color components are uniformly defined to be the first direction (+X), so that the toner images of the respective colors may maintain the consistent density.

摘要翻译： 该装置适于通过振荡的偏转镜面来偏转来自激光光源的每个颜色分量的光束，从而使光束在主扫描方向上往复扫描。 然而，在该装置中，只有在主扫描方向的第一方向（+ X）上扫描的光束SL被照射在感光构件上的有效图像区域中，以便在其上形成潜像。 显影所得潜像以形成调色剂图像。 由于仅使用沿第一方向（+ X）扫描的光束SL执行图像形成，所以可以以一致的浓度形成图像，而与图像类型无关。 此外，用于所有颜色分量的光束SL的扫描方向被均匀地限定为第一方向（+ X），使得各种颜色的调色剂图像可以保持一致的密度。

公开(公告)号：US20080273901A1

公开(公告)日：2008-11-06

申请号：US11951226

申请日：2007-12-05

申请人： Hiroshi TOYAMA ,  Ken IKUMA

发明人： Hiroshi TOYAMA ,  Ken IKUMA

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0619 ,  G03G2215/0634

摘要： To provide a developing device capable of preventing excess charge of the toner particles so as to prevent occurrence of failure caused by an decrease in toner flying property between the developing roller and photoconductor or a change in development characteristics, a developing device according to the present invention develops non-magnetic mono component toner using a developing roller having on its surface a plurality of groove portions each of which includes: a leading end side cut portion formed on the leading end side of the developing roller in the rotational direction thereof and having a leading end side cut angle θ1; and a trailing end side cut portion formed on the trailing end side of the developing roller in the rotational direction thereof and having a trailing end side cut angle θ2 and in which a relationship θ1

摘要翻译： 为了提供能够防止调色剂颗粒过量充电的显影装置，以便防止由显影辊和感光体之间的调色剂飞溅性降低引起的故障或显影特性的变化，根据本发明的显影装置 使用显影辊形成非磁性单组分调色剂，所述显影辊在其表面上具有多个槽部分，每个槽部分包括：前端侧切割部分，形成在显影辊的旋转方向的前端侧，并具有前导 端侧切角θ1; 以及在其旋转方向上形成在显影辊的后端侧并且具有后端侧切角θ2并且其中满足关系θ1 <θ2的后端侧切割部分。

公开(公告)号：US20100067950A1

公开(公告)日：2010-03-18

申请号：US12552993

申请日：2009-09-02

申请人： Hiroshi TOYAMA ,  Koichi KAMIJO ,  Ken IKUMA

发明人： Hiroshi TOYAMA ,  Koichi KAMIJO ,  Ken IKUMA

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/10 ,  G03G15/11 ,  G03G21/08

摘要： An image forming apparatus includes: a latent image carrier; an exposure unit which forms a latent image on the latent image carrier; a developing unit which develops the latent image formed on the latent image carrier by the exposure unit using liquid developer; a squeeze roller which contacts the latent image carrier, and applies bias voltage to the latent image carrier after development by the developing unit; an electrification reducing light source which supplies light to the latent image carrier to which bias is applied by the squeeze roller; a transfer member which contacts the latent image carrier and receives the image transferred from the latent image carrier; and a reflection preventing member disposed between the transfer member and the electrification reducing light source.

摘要翻译： 图像形成装置包括：潜像载体; 在潜像载体上形成潜像的曝光单元; 显影单元，其通过使用液体显影剂的曝光单元使潜像载体上形成的潜像显影; 与所述潜像载体接触的挤压辊，并且通过所述显影单元在显影之后对所述潜像载体施加偏置电压; 减光光源，其通过挤压辊向施加了偏压的潜像载体提供光; 传送构件，其接触所述潜像载体并接收从所述潜像载体传送的图像; 以及设置在所述转印构件和所述减电光源之间的防反射构件。

公开(公告)号：US20090232533A1

公开(公告)日：2009-09-17

申请号：US12397979

申请日：2009-03-04

申请人： Hiroshi TOYAMA ,  Ken IKUMA

发明人： Hiroshi TOYAMA ,  Ken IKUMA

IPC分类号： G03G15/06 ,  G03G15/10

CPC分类号： G03G15/11 ,  G03G2221/0005

摘要： An image forming apparatus according to the present invention includes an image carrier, a charging section that electrically charges the image carrier, an exposure section that exposes the image carrier to light to form a latent image, a development section that develops the latent image by means of a liquid developer containing carrier and toner particles, a first squeezing roller that is held in contact with the image carrier carrying an image developed by the development section and adapted to bear a bias voltage Vs1 applied thereto, a second squeezing roller that is held in contact with the image carrier squeezed by the first squeezing roller and adapted to bear a bias voltage Vs2 applied thereto, and a transfer member that is held in contact with the image carrier squeezed by the second squeezing roller and adapted to receive the image transferred thereto, the absolute value of the bias voltage Vs1 and the absolute value of the bias voltage Vs2 showing a relationship of |Vs1|>|Vs2|.

摘要翻译： 根据本发明的图像形成装置包括图像载体，对图像载体进行电荷的充电部，将图像载体曝光以形成潜像的曝光部，通过装置显影潜像的显影部 包含载体和调色剂颗粒的液体显影剂，第一挤压辊，其保持与承载由显影部分显影的图像的图像载体接触并适于承受施加到其上的偏置电压Vs1;第二挤压辊，保持在 与由第一挤压辊挤压的图像载体接触并适于承受施加到其上的偏置电压Vs2;以及传送构件，其保持与由第二挤压辊挤压的图像载体接触并适于接收转印到其上的图像， 偏置电压Vs1的绝对值和偏置电压Vs2的绝对值表示| Vs1 |> | Vs 2 |。

公开(公告)号：US20100226670A1

公开(公告)日：2010-09-09

申请号：US12703599

申请日：2010-02-10

申请人： Hiroshi TOYAMA ,  Ken IKUMA

发明人： Hiroshi TOYAMA ,  Ken IKUMA

IPC分类号： G03G15/043 ,  G03G13/04

CPC分类号： G03G15/043 ,  G03G15/10

摘要： An image forming apparatus includes a first latent image carrier that forms a first latent image, a first charging unit that charges the first latent image carrier, and a first exposure unit that exposes the first latent image carrier to light, forming the first latent image. A first developing unit develops the first latent image with a first liquid developer. A second latent image carrier forms a second latent image. A second charging unit charges the second latent image carrier, which is exposed by a second exposure unit to light, forming the second latent image. A second developing unit develops the second latent image with a second liquid developer. Developed images of the first and second latent image carriers are transferred by a transfer member. A light amount controlling unit adjusts an exposed light amount of the first or the second exposure unit according to image information.

摘要翻译： 图像形成装置包括形成第一潜像的第一潜像载体，对第一潜像载体进行充电的第一充电单元和将第一潜像载体曝光的第一曝光单元，形成第一潜像。 第一显影单元用第一液体显影剂显影第一潜像。 第二潜影载体形成第二潜像。 第二充电单元将由第二曝光单元曝光的第二潜像载体充电到形成第二潜像的光。 第二显影单元用第二液体显影剂显影第二潜像。 第一和第二潜像载体的显影图像由转印部件转印。 光量控制单元根据图像信息调节第一或第二曝光单元的曝光光量。