公开(公告)号：US20070115342A1

公开(公告)日：2007-05-24

申请号：US11625059

申请日：2007-01-19

Applicant: Haruhiko NAKATSU

Inventor： Haruhiko NAKATSU

IPC: B41J2/435

CPC classification number: G03G15/326 ,  G03G15/0435 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04712 ,  H04N2201/04717 ,  H04N2201/04722 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04767 ,  H04N2201/04774 ,  H04N2201/04775 ,  H04N2201/04786 ,  H04N2201/04794

Abstract: A high-quality image forming apparatus that is capable of accurately adjusting the size and position of an image during image formation on a second surface of a transfer material, even when there has been expansion/contraction of the transfer material due to thermal fixing after image formation on a first surface thereof, to thereby avoid image displacement during two-sided image formation and multiple image formation. A pulse adjusting section sets a second number of pulses of the image clock corresponding to a distance from BD signal detector to the write start position of the latent image during image formation on the second surface, to a number of pulses different from a first number of pulses of the image clock corresponding to a distance from the horizontal synchronization signal detecting device to the write start position of the latent image during image formation on the first surface, based on the first number of pulses of the image clock during image formation on the first surface, in accordance with an expansion/contraction ratio of the transfer material after fixing of the image on the first surface.

Abstract translation: 一种能够在图像形成期间在转印材料的第二表面上精确地调整图像的尺寸和位置的高质量图像形成装置，即使当由于图像之后的热定影而导致的转印材料的膨胀/收缩 在其第一表面上形成，从而避免在双面图像形成和多次图像形成期间的图像位移。 脉冲调整部分将在第二表面上的图像形成期间对应于距离BD信号检测器的距离的图像时钟的第二数量脉冲设置为潜像的写入开始位置到不同于第一数量 基于在第一表面上的图像形成期间的图像时钟的第一数量的脉冲，对应于从水平同步信号检测装置到第一表面上的图像形成期间的潜像的写入开始位置的图像时钟的脉冲 表面，根据在第一表面上固定图像之后的转印材料的膨胀/收缩比。

公开(公告)号：US20060244810A1

公开(公告)日：2006-11-02

申请号：US11195741

申请日：2005-08-03

Applicant: Kouichi Takaki ,  Kenji Izumiya ,  Toshihiro Motoi

Inventor： Kouichi Takaki ,  Kenji Izumiya ,  Toshihiro Motoi

IPC: B41J2/435

CPC classification number: H04N1/053 ,  G02B26/123 ,  H04N1/1135 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04781 ,  H04N2201/04786 ,  H04N2201/04794

Abstract: A laser scanning apparatus includes: a plurality of laser light sources including a first laser light source and a second laser light source; a scanner for scanning laser lights emitted from the plurality of laser light sources in a main scanning direction; a light receiving sensor for receiving the laser lights deflected and scanned by the scanner; and a signal generation unit for generating a first signal which is in synchronization with a pixel clock for the second laser light source based on an output from the light receiving sensor obtained by a laser light emitted from the first laser light source, and for generating a second signal which is in synchronization with a pixel clock for the first laser light source based on an output from the light receiving sensor obtained by a laser light emitted from the second laser light source.

Abstract translation: 激光扫描装置包括：多个激光源，包括第一激光光源和第二激光光源; 扫描器，用于沿主扫描方向扫描从所述多个激光光源发射的激光; 用于接收由扫描仪偏转和扫描的激光的光接收传感器; 信号产生单元，用于基于从由第一激光光源发射的激光获得的光接收传感器的输出，产生与第二激光光源的像素时钟同步的第一信号，并产生 第二信号，其基于从由第二激光光源发射的激光获得的光接收传感器的输出与第一激光光源的像素时钟同步。

公开(公告)号：US07130097B2

公开(公告)日：2006-10-31

申请号：US11235162

申请日：2005-09-27

Applicant: Yumiko Higashi ,  Kenji Izumiya ,  Eiji Nishikawa

Inventor： Yumiko Higashi ,  Kenji Izumiya ,  Eiji Nishikawa

IPC: G02B26/08

CPC classification number: H04N1/053 ,  G02B26/122 ,  G03G15/011 ,  G03G2215/0158 ,  G06K15/12 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0091 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/04794

Abstract: There is provided a controller that controls and drives the polygon mirror to a target speed with keeping a predetermined phase. When the controller controls the speed of the polygon mirror along with the image magnification adjustment, the controller controls the polygon mirror with a waiting time t1 from an end of the speed control of the polygon mirror for stabilizing before the phase control and a waiting time t2 from an end of the phase control of the polygon mirror for stabilizing, the t1 and t2 being set with a relation of t1

Abstract translation: 提供了一种控制器，其以保持预定相位的方式控制并驱动多面镜到目标速度。 当控制器控制多边形镜的速度以及图像倍率调整时，控制器从多角镜的速度控制结束起等待时间t 1控制多面镜，以便在相位控制之前稳定和等待时间 从用于稳定的多面镜的相位控制结束起，t 1和t 2被设定为t 1

公开(公告)号：US07087892B2

公开(公告)日：2006-08-08

申请号：US10645759

申请日：2003-08-19

Applicant: Masanori Yoshikawa ,  Akinobu Okuda

Inventor： Masanori Yoshikawa ,  Akinobu Okuda

IPC: G01N21/86 ,  G02B26/08

CPC classification number: H04N1/047 ,  G02B26/126 ,  G02B26/127 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04744

Abstract: A light scanner includes a semiconductor laser, a polygon mirror, a first imaging optical system for guiding a light beam from the laser to the deflection surface of the polygon mirror, a second imaging optical system of a single curved mirror for guiding the light beam from the polygon mirror to a photosensitive drum, and a photodiode for detecting the light beam scanned by the polygon mirror. The first imaging optical system, the polygon mirror, and the second imaging optical system are located at different positions in the sub-scanning direction so that the light beam from the first imaging optical system enters the deflection surface obliquely, and the light beam from the polygon mirror enters the curved mirror obliquely.

Abstract translation: 光扫描器包括半导体激光器，多面镜，用于将来自激光器的光束引导到多面镜的偏转表面的第一成像光学系统，用于引导来自多角镜的偏转表面的光束的单个曲面镜的第二成像光学系统 到感光鼓的多面镜，以及用于检测由多面镜扫描的光束的光电二极管。 第一成像光学系统，多面镜和第二成像光学系统位于副扫描方向上的不同位置，使得来自第一成像光学系统的光束倾斜地进入偏转表面，并且来自 多面镜倾斜地进入曲面镜。

公开(公告)号：US07071957B2

公开(公告)日：2006-07-04

申请号：US10245648

申请日：2002-09-18

Applicant: Akihiro Fujimoto

Inventor： Akihiro Fujimoto

IPC: G03G15/01 ,  G02B26/10

CPC classification number: H04N1/506 ,  G02B26/123 ,  G03G15/011 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0161 ,  H04N1/0473 ,  H04N2201/03158 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04767 ,  H04N2201/04772 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: To provide an image forming apparatus having a plurality of optical systems each simultaneously scanning two stations by one polygon mirror to minimize conveyance-directional color misregistration of an intermediate transferring belt. An electrophotographic color laser printer connected with a host computer is provided with a scanner unit common to first and second stations, a scanner unit common to third and fourth stations, and a registration-position detector for reading an image pattern formed on an intermediate transferring belt and detecting a registration position of an image of a laser beam. The plane phase of the polygon mirror in the first and second stations is controlled and central positions of image patterns by two laser beams are detected to correct the misregistration between these central positions.

公开(公告)号：US06998603B2

公开(公告)日：2006-02-14

申请号：US10653893

申请日：2003-09-04

Applicant: Yoshito Ikeda

Inventor： Yoshito Ikeda

IPC: H01J3/14 ,  H01J40/14 ,  H01J5/16

CPC classification number: B41J2/473 ,  G06K15/1214 ,  H04N1/053 ,  H04N1/1135 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04744

Abstract: An image forming apparatus is disclosed that is capable of making it simple to initialize a laser system thereof. The image forming apparatus includes a first photo detector that detects a part of a laser beam from each of the lasers and generates respective power adjustment signals for the lasers, a second photo detector that detects another part of the scanning laser beam of each of the lasers and generates a synchronization signal corresponding to each laser, and a power adjustment control unit that changes the output power of each of the lasers to a predetermined value. During the adjustment of output powers of the lasers, the power of a laser is monitored by using the synchronization signal. The power adjustment control unit turns on a laser for power adjustment, and turns off the laser when the scanning synchronization signal is detected twice to complete the power adjustment of the laser, and then starts power adjustment of the next laser.

Abstract translation: 公开了能够使初始化其激光系统变得简单的图像形成装置。 图像形成装置包括：第一光电检测器，其检测来自每个激光器的激光束的一部分，并产生用于激光器的相应的功率调节信号;第二光电检测器，其检测每个激光器的扫描激光束的另一部分 并产生对应于每个激光器的同步信号，以及功率调节控制单元，其将每个激光器的输出功率改变为预定值。 在调整激光器的输出功率期间，通过使用同步信号来监视激光器的功率。 功率调节控制单元打开用于功率调节的激光器，并且当检测到扫描同步信号两次以完成激光器的功率调整时关闭激光器，然后开始下一个激光器的功率调节。

公开(公告)号：US20050275918A1

公开(公告)日：2005-12-15

申请号：US11189174

申请日：2005-07-25

Applicant: Gerard Carlson ,  B. Hirst ,  Mark Wibbels

Inventor： Gerard Carlson ,  B. Hirst ,  Mark Wibbels

IPC: G03F3/08 ,  H04N1/053 ,  H04N1/113 ,  G02B26/08

CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04786 ,  H04N2201/04789 ,  H04N2201/04798

Abstract: A method for refining a length of a scan line, where the scan line is produced from a facet of a scanning device. The method comprises the steps of: (a) acquiring a plurality of scan line lengths produced from the facet, (b) determining from the plurality of scan line lengths, an average scan line length for the facet, and (c) determining from the average scan line length, a scan line length correction for the facet. A method for measuring a length of a scan line comprises the steps of: (a) charging an electrical current integrator to a voltage while a scan line is produced from a facet, (b) measuring the voltage, and (c) determining from the voltage, the length of the scan line produced from the facet.

Abstract translation: 一种用于细化扫描线的长度的方法，其中从扫描装置的一面产生扫描线。 该方法包括以下步骤：（a）获取由小平面产生的多条扫描线长度，（b）根据多条扫描线长度确定小平面的平均扫描线长度，以及（c）从 平均扫描线长度，面的扫描线长度校正。 一种用于测量扫描线的长度的方法包括以下步骤：（a）在从小面产生扫描线的同时，将电流积分器充电至电压，（b）测量电压，以及（c）从 电压，从小平面产生的扫描线的长度。

公开(公告)号：US20050206744A1

公开(公告)日：2005-09-22

申请号：US11083158

申请日：2005-03-18

Applicant: Hisakazu Ohkawara ,  Hidenori Akamatsu

Inventor： Hisakazu Ohkawara ,  Hidenori Akamatsu

IPC: B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/23 ,  H04N5/228

CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0082 ,  H04N2201/0471 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04772 ,  H04N2201/04786

Abstract: Magnification correction of an image is performed by changing the cycle time of an optional pixel in the unit of pixel, until a phase adjustment amount (phase shift value) calculated by fixing the frequency exceeds a preset specified value, and after the phase adjustment amount exceeds the preset specified value, magnification correction of the image is performed by changing the frequency of an image signal in the unit of a line or in the unit of a plurality of lines. Accordingly, the number of execution of the magnification correction of an image by the latter method, in which it is necessary to suspend the image forming operation at the time of execution thereof, can be reduced.

Abstract translation: 通过改变以像素为单位的可选像素的周期时间来进行图像的放大校正，直到通过固定频率计算出的相位调整量（相移值）超过预设的规定值，并且在相位调整量超过 通过以线或单位为单位改变图像信号的频率来执行预设的指定值，图像的倍率校正。 因此，可以减少在执行时需要暂停图像形成操作的后一种方法执行图像的放大率校正的次数。

公开(公告)号：US20050206719A1

公开(公告)日：2005-09-22

申请号：US10805306

申请日：2004-03-22

Applicant: Kenichi Komiya ,  Koji Tanimoto ,  Daisuke Ishikawa ,  Yuji Inagawa

Inventor： Kenichi Komiya ,  Koji Tanimoto ,  Daisuke Ishikawa ,  Yuji Inagawa

IPC: B41J2/435 ,  H04N1/04 ,  H04N1/113 ,  H04N1/12

CPC classification number: H04N1/0414 ,  H04N1/0402 ,  H04N1/0443 ,  H04N1/0455 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04774 ,  H04N2201/04791

Abstract: An image forming apparatus according to an embodiment of this invention includes a light emission unit for emitting a light beam, a scanning control unit for controlling scanning of the light beam, a first light emission control unit for controlling the light emission timing of the light emission unit on the basis of a reference clock, a second light emission control unit for controlling the light emission timing of the light emission unit in correspondence with image data of one line in the main scanning direction on the basis of the generation timing of a horizontal sync signal, and an image forming unit for forming an image on the basis of the light beam.

Abstract translation: 根据本发明的实施例的图像形成装置包括用于发射光束的发光单元，用于控制光束扫描的扫描控制单元，用于控制发光的发光定时的第一发光控制单元 基于参考时钟的单元，第二发光控制单元，用于根据水平同步的产生定时来控制与主扫描方向上的一行的图像数据相对应的发光单元的发光定时 信号，以及用于基于光束形成图像的图像形成单元。

公开(公告)号：US06879334B2

公开(公告)日：2005-04-12

申请号：US10279558

申请日：2002-10-25

Applicant: Yoshito Ikeda

Inventor： Yoshito Ikeda

IPC: B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  H04N1/036 ,  H04N1/053 ,  H04N1/113 ,  H04N1/191 ,  B41J2/435

CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04784 ,  H04N2201/04786 ,  H04N2201/04794

Abstract: An image forming apparatus shifts a scanning position on a surface scanned of each of a plurality of optical beams in a main scanning direction and a sub-scanning direction, and scans a plurality of lines simultaneously in the main scanning direction by a deflecting part. A synchronization detecting sensor detects the plurality of optical beams. A counting part counts a clock having a higher frequency than a dot clock in an interval between a synchronization detection point of a first beam and a synchronization detection point of a second beam, the first and second beams being included in the optical beams detected by the synchronization detecting sensor. A determining part determines a starting position of writing for each of the plurality of optical beams based on a counted value counted by the counting part. A writing part writes each dot from the starting position of each of the plurality of optical beams determined by the determining part, according to the clock having the higher frequency than the dot clock.

Abstract translation: 图像形成装置在主扫描方向和副扫描方向上移动在多个光束中扫描的表面上的扫描位置，并且通过偏转部在主扫描方向上同时扫描多条线。 同步检测传感器检测多个光束。 在第一光束的同步检测点和第二光束的同步检测点之间的间隔中，计数部分对具有比点时钟更高的频率的时钟进行计数，第一和第二光束被包括在由 同步检测传感器。 确定部分基于由计数部件计数的计数值来确定多个光束中的每一个的写入的开始位置。 写入部分根据具有比点时钟频率高的时钟从每个确定部分确定的多个光束的起始位置写入每个点。