公开(公告)号：US6163334A

公开(公告)日：2000-12-19

申请号：US183022

申请日：1998-10-30

Applicant: Kazumi Irie ,  Kazuyuki Ohnishi ,  Yoichi Shimazawa ,  Syoichiro Yoshiura

Inventor： Kazumi Irie ,  Kazuyuki Ohnishi ,  Yoichi Shimazawa ,  Syoichiro Yoshiura

IPC: B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  G06K15/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/50 ,  B41J2/435 ,  B41J2/47

CPC classification number: H04N1/506 ,  G06K15/1219 ,  G06K15/129 ,  H04N1/053 ,  H04N1/1135 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04772 ,  H04N2201/04777 ,  H04N2201/04794

Abstract: A conventional image forming device having a plurality of image optical scanning recording sections has had a drawback of being incapable of correcting printing positions of the image optical scanning recording sections with high precision by using a small-scale circuit. In the case of an image forming device of the present invention, a variable clock generator 114 having a voltage control oscillator (VCO) 114a is provided therein as reference clock signal generating means of laser control system of each of image optical scanning recording sections (LSU) for cyan, yellow, and magenta. By so doing, during an invalid printing period prior to a valid printing period, frequencies of the reference clock signals of the LSUs for cyan, yellow, and magenta are adjusted in accordance with offsets of printing start positions of these LSUs with respect to that of the LSU for black, so that printing offsets are eliminated. As a result, the printing start positions are made to coincide with each other with high precision even with a small-scale circuit.

Abstract translation: 具有多个图像光学扫描记录部分的传统图像形成装置的缺点是通过使用小规模电路不能以高精度校正图像光学扫描记录部分的打印位置。 在本发明的图像形成装置的情况下，设置有具有压控振荡器（VCO）114a的可变时钟发生器114作为每个图像光学扫描记录部分（LSU）的激光控制系统的参考时钟信号发生装置 ），用于青色，黄色和品红色。 通过这样做，在有效打印周期之前的无效打印期间，根据这些LSU的打印开始位置相对于蓝色，黄色和品红色的LSU的打印开始位置的偏移量，调整用于青色，黄色和品红色的LSU的参考时钟信号的频率 用于黑色的LSU，从而消除打印抵消。 结果，即使使用小规模电路，打印开始位置也以高精度相互重合。

公开(公告)号：US06163333A

公开(公告)日：2000-12-19

申请号：US276766

申请日：1999-03-26

Applicant: Makoto Kamioka

Inventor： Makoto Kamioka

IPC: B41J2/47 ,  G06K15/12 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  H04N1/191 ,  B41J27/00

CPC classification number: H04N1/0473 ,  B41J2/473 ,  G06K15/1209 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/0471 ,  H04N2201/04744 ,  H04N2201/0476 ,  H04N2201/04763

Abstract: A multi-beam scanning optical apparatus employs a beam pitch adjusting system in which the position of a first beam is detected by using a beam position detecting system composed of a knife edge shaped plate and one photo sensor, and in which the optical path of the second beam is corrected so that the position of the second beam may be at a specified distance from the position of the first beam. A further embodiment of the beam pitch adjusting systems includes a beam position detecting system using a line position sensor by CCD or PSD. A yet further embodiment of the beam pitch adjusting system includes a position detecting system utilizing the power of a beam efficiently by disposing a focusing lens on an optical path of the beam. Hence, beam pitch adjustment is facilitated, the pitch adjustment precision is enhanced, the range of pitch adjustment is optimized, the number of parts is reduced, and space is saved.

Abstract translation: 多光束扫描光学装置采用光束调节系统，其中通过使用由刀刃形状的板和一个光传感器组成的光束位置检测系统来检测第一光束的位置，并且其中光束的光路 校正第二光束，使得第二光束的位置可以距离第一光束的位置指定距离。 光束调节系统的另一实施例包括使用CCD或PSD的线位置传感器的光束位置检测系统。 光束调节调节系统的又一实施例包括通过将聚焦透镜设置在光束的光路上而有效利用光束的位置检测系统。 因此，能够进行光束间距调整，能够提高俯仰调整精度，优化俯仰调整范围，减少部件数量，节省空间。

公开(公告)号：US6160566A

公开(公告)日：2000-12-12

申请号：US364137

申请日：1999-07-30

Applicant: Takami Maeda

Inventor： Takami Maeda

IPC: B41J2/44 ,  H04N1/053 ,  H04N1/113 ,  H04N1/50 ,  B41J2/47

CPC classification number: H04N1/506 ,  H04N1/053 ,  H04N1/1135 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04748 ,  H04N2201/04755 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: A phase-difference-measuring-circuit counts time-lags of beam-detect-signals with regard to a reference beam-detect-signal based on a reference clock. The counted values are stored in respective registers. When register-load-signals are set to "active", the stored values are loaded to pulse-generating-circuits, and counters in the pulse-generating-circuits count down the stored values based on the reference clock. During this count down operation, pulse-generating-circuits output one-shot-pulse-signals. When the on-shot-pulse-signals stays active, frequency dividers are set to "disable" and stop their operations. Duties of motor clocks driving rotary polygons in laser-beam-scanning-units are temporarily varied during this period, and the motor clocks are outputted with phase delay corresponding to this period, thereby correcting phase deviation in the main scan direction of the polygons.

Abstract translation: 相位差测量电路根据参考时钟对参考光束检测信号计算光束检测信号的时间滞后。 计数值存储在相应的寄存器中。 当寄存器 - 负载信号设置为“有效”时，存储的值被加载到脉冲发生电路，并且脉冲发生电路中的计数器根据参考时钟对存储的值进行倒计数。 在该倒计时期间，脉冲发生电路输出单触发脉冲信号。 当触发脉冲信号保持有效时，分频器被设置为“禁用”并停止其操作。 激光束扫描单元中驱动旋转多边形的电机时钟的职责在此期间暂时变化，电机时钟以与该周期对应的相位延迟输出，从而校正多边形主扫描方向的相位偏差。

公开(公告)号：US6157400A

公开(公告)日：2000-12-05

申请号：US211966

申请日：1998-12-15

Applicant: Frank C. Genovese

Inventor： Frank C. Genovese

IPC: B41J2/47 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  B41J2/435

CPC classification number: H04N1/053 ,  B41J2/471 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04768

Abstract: An imaging system having a raster output scanner that produces high quality scan lines comprised of evenly spaced pixels. The raster output laser device is modulated in accordance with a variable frequency pixel clock that is derived from a high frequency oscillator using a dual modulus programmable divider that is controlled by a state machine. In turn, that state machine is controlled by information stored in a memory. The variable frequency pixel clock compensates for scan line nonlinearity, polygon facet errors, and/or scan line magnification.

Abstract translation: 一种具有光栅输出扫描器的成像系统，其产生由均匀间隔的像素组成的高质量扫描线。 根据由状态机控制的双模式可编程分频器，根据从高频振荡器导出的可变频率像素时钟来调制光栅输出激光器件。 反过来，该状态机由存储在存储器中的信息控制。 可变频率像素时钟补偿扫描线非线性，多边形面误差和/或扫描线放大率。

公开(公告)号：US6144483A

公开(公告)日：2000-11-07

申请号：US346743

申请日：1999-07-02

Applicant: Roy D. Allen ,  Frank Scholten

Inventor： Roy D. Allen ,  Frank Scholten

IPC: B41B19/00 ,  B41J2/47 ,  G02B26/10 ,  H04N1/047 ,  H04N1/053 ,  H04N1/06 ,  H04N1/191 ,  G02F1/33

CPC classification number: H04N1/0635 ,  B41B19/00 ,  B41J2/473 ,  G02B26/10 ,  H04N1/047 ,  H04N1/053 ,  H04N1/1911 ,  H04N1/0607 ,  H04N2201/0471 ,  H04N2201/0476 ,  H04N2201/04765 ,  H04N2201/04786

Abstract: A beam scanning system for scanning an imaging surface includes a phase shifter for issuing phase signals, a radiation emitter for emitting a beam of radiation and a deflection element, such as an acousto-optic modulator or translating lens, for deflecting the radiation beam. Depending on the implementation, the emitter can be configured to phase shift the radiation beam and/or the deflection element can be configured to deflect the radiation beam in accordance with the issued phase signals. By emitting and/or deflecting the radiation beam in accordance with the phase signals, the length of the scan line formed on the imaging surface can be controlled. A deflector, such as a spin mirror or rotatable prism, is provided to direct the radiation beam to form a scan line on the imaging surface.

Abstract translation: 用于扫描成像表面的束扫描系统包括用于发出相位信号的移相器，用于发射辐射束的辐射发射器和用于偏转辐射束的偏转元件，例如声光调制器或平移透镜。 根据实施方案，发射器可以被配置为使辐射束相移，和/或可以将偏转元件配置成根据发出的相位信号偏转辐射束。 通过根据相位信号发射和/或偏转辐射束，可以控制形成在成像表面上的扫描线的长度。 提供偏转器，例如自旋反射镜或可旋转棱镜，以引导辐射束在成像表面上形成扫描线。

公开(公告)号：US6094208A

公开(公告)日：2000-07-25

申请号：US139788

申请日：1998-08-25

Applicant: Ayumu Oda ,  Osamu Fujimoto ,  Syoichiro Yoshiura ,  Nobuo Manabe ,  Toshio Yamanaka ,  Koji Katamoto

Inventor： Ayumu Oda ,  Osamu Fujimoto ,  Syoichiro Yoshiura ,  Nobuo Manabe ,  Toshio Yamanaka ,  Koji Katamoto

IPC: B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  G03G15/01 ,  G03G21/14 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/50 ,  H04N1/60 ,  G03G15/04

CPC classification number: H04N1/506 ,  H04N1/053 ,  G03G2215/0119 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04786

Abstract: In this digital color copier, laser beam scanner units of the same configuration are arranged in parallel with each other, and all are controlled in a unified manner by a laser control unit provided outside the units. In order to synchronously rotate the polygon mirrors in a precise manner, the speeds of rotations of their motors, fed back from tacho-generators are compared to the reference frequency generated from an oscillator so as to allow a motor control circuit to control the driving motors of the polygon mirrors. Further, the BD signals from beam detectors (BD) are fed back to the laser control unit so that all the BD signals from the laser scanner units for black and the three colors can become synchronized with each other, thus enabling control of the polygon mirrors.

Abstract translation: 在该数字彩色复印机中，具有相同结构的激光束扫描器单元彼此并联布置，并且均由设置在单元外部的激光控制单元统一地控制。 为了以精确的方式同步旋转多面镜，将从转速发生器反馈的其电动机的转速与由振荡器产生的参考频率进行比较，以允许电动机控制电路控制驱动电动机 的多面镜。 此外，来自光束检测器（BD）的BD信号被反馈到激光控制单元，使得来自用于黑色和三种颜色的激光扫描仪单元的所有BD信号可以彼此同步，从而能够控制多面镜 。

公开(公告)号：US6084627A

公开(公告)日：2000-07-04

申请号：US838707

申请日：1997-04-09

Applicant: Paul Christopher Cook ,  Raymond John Drewett ,  Alan Peter Ogburn

Inventor： Paul Christopher Cook ,  Raymond John Drewett ,  Alan Peter Ogburn

IPC: H04N1/047 ,  H04N1/10 ,  H04N1/401 ,  G02F1/33

CPC classification number: H04N1/1275 ,  H04N1/047 ,  H04N1/128 ,  H04N1/4015 ,  H04N1/1017 ,  H04N2201/0426 ,  H04N2201/0471 ,  H04N2201/04765

Abstract: An apparatus and method for controlling an image recording device. The apparatus includes an acousto-optic deflector that deflects a beam of light so as to write a sub-scan comprising a predetermined number of picture elements. The image recording device is arranged to write a plurality of sub-scans side by side in a substantially contiguous manner. The apparatus also includes a component that commences sub-scans, a start of sub-scan detector that detects when the light beam is directed towards a start of sub-scan position, and an end of sub-scan detector that detects when the beam of light is directed towards an end of sub-scan position. A timing logic controller generates a start reference signal representing a desired position for the start of a sub-scan. A controller compares an output of the start of sub-scan detector with respect to the start reference signal. The controller also adjusts a frequency range of a chirp applied to the acousto-optic deflector while keeping a start time of the chirp constant so as to cause an arrival time of the light beam at the start of sub-scan detector to coincide with the start reference signal. A picture element rate controller adjusts a rate at which picture elements are written such that a final one of the picture elements is written a predetermined period before the light beam is directed towards the end of sub-scan position.

Abstract translation: 一种用于控制图像记录装置的装置和方法。 该装置包括使光束偏转的声光偏转器，以便写入包括预定数量的像素的子扫描。 图像记录装置被布置成以基本上连续的方式并排地写入多个子扫描。 该装置还包括开始子扫描的部件，检测光束何时被引导朝向副扫描位置的开始的副扫描检测器的开始以及检测到 光指向副扫描位置的一端。 定时逻辑控制器产生表示用于子扫描开始的期望位置的开始参考信号。 控制器将副扫描检测器的开始的输出与起始参考信号进行比较。 控制器还调整施加到声光偏转器的啁啾的频率范围，同时保持啁啾的开始时间恒定，以使得在亚扫描检测器的开始处的光束的到达时间与起始 参考信号。 图像元素速率控制器调整写入图像元素的速率，使得在光束指向副扫描位置的结束之前，预定的周期内写入最后的一个图像元素。

公开(公告)号：US6004050A

公开(公告)日：1999-12-21

申请号：US995773

申请日：1997-12-22

Applicant: David Rehman ,  Tod S. Heiles ,  Geoff Wotton ,  John Sturman

Inventor： David Rehman ,  Tod S. Heiles ,  Geoff Wotton ,  John Sturman

IPC: B41J19/00 ,  H04N1/053 ,  H04N1/12 ,  H04N1/191 ,  B41J25/304

CPC classification number: H04N1/128 ,  B41J19/005 ,  H04N1/053 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/0428 ,  H04N2201/0471 ,  H04N2201/04767

Abstract: A carriage drive system includes a carriage driven along a carriage path under a force generated by a drive motor. The driving force is coupled to the carriage by a drive belt. High frequency vibrations occurring in the drive belt are isolated from the carriage to improve print quality or scanning accuracy. Vibrations are introduced to the drive belt by the drive motor, the connection between the drive motor and the drive belt or from another source. High frequency decoupling is achieved using a spring connection which serves as a low pass filter of vibration frequencies. In addition, a linear encoder is included on the carriage for detecting carriage position. Such linear encoder samples carriage position at a rate fast enough to enable compensation for low frequency carriage vibrations.

Abstract translation: 托架驱动系统包括在由驱动马达产生的力下沿滑架路径驱动的滑架。 驱动力通过传动带联接到滑架。 驱动带中发生的高频振动与滑架隔离，以提高打印质量或扫描精度。 振动通过驱动电机，驱动电机和传动皮带之间的连接或从另一个来源引入驱动皮带。 使用用作振动频率的低通滤波器的弹簧连接来实现高频去耦。 此外，在托架上包括用于检测托架位置的线性编码器。 这种线性编码器以足够快的速率对载架位置进行采样，以便对低频滑架振动进行补偿。

公开(公告)号：US5990583A

公开(公告)日：1999-11-23

申请号：US189351

申请日：1998-11-09

Applicant: Katsuhiro Nanba ,  Toshio Kitaoka ,  Mitsutoshi Yagoto

Inventor： Katsuhiro Nanba ,  Toshio Kitaoka ,  Mitsutoshi Yagoto

IPC: G03G15/04 ,  H02K41/03 ,  H04N1/047 ,  H04N1/10 ,  H04N1/193 ,  H02K41/00

CPC classification number: H04N1/1035 ,  G03G15/04 ,  H02K41/03 ,  H04N1/0473 ,  H04N1/1013 ,  H04N1/1056 ,  G03G15/0435 ,  H04N1/193 ,  H04N2201/0471 ,  H04N2201/04755

Abstract: An image reading apparatus comprising a fluorescent lamp for lighting an original document; an inverter circuit for turning on the lamp; a plurality of optical part carrying sliders carrying the lamp on one of the sliders; and a magnetic encoder including a magnetism detecting element, wherein the detecting element and the inverter circuit (and an operation panel having a LCD) are spaced from each other and are located at opposite sides of a center of a travel region of the sliders.A shaft-type linear motor comprising a yoke stationarily arranged along the moving direction of a movable piece and made of a ferromagnetic material.A shaft-type linear motor comprising a shaft-type stator and a movable piece reciprocatable along the stator, wherein the stator and the movable piece are covered with a protection cover. The cover may be made of a ferromagnetic material.

Abstract translation: 一种图像读取装置，包括用于点亮原稿的荧光灯; 用于接通灯的逆变器电路; 多个光学部件，其承载滑块，其将灯携带在其中一个滑块上; 以及包括磁检测元件的磁编码器，其中检测元件和逆变器电路（以及具有LCD的操作面板）彼此间隔开并且位于滑块的行进区域的中心的相对侧。 一种轴型直线电动机，其包括沿着可移动件的移动方向固定地设置并由铁磁材料制成的轭。 一种轴型直线电动机，包括轴型定子和可沿定子往复运动的活动件，其中定子和可动件被保护盖覆盖。 盖可以由铁磁材料制成。

公开(公告)号：US5903377A

公开(公告)日：1999-05-11

申请号：US1559

申请日：1997-12-31

Applicant: Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

Inventor： Masatoshi Takano ,  Eiji Takasugi ,  Shinji Kikuchi ,  Tsutomu Sato ,  Hiroyuki Saito ,  Yoshiyuki Araki ,  Mitsunori Iima ,  Takashi Sasaki ,  Takashi Iizuka

IPC: B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/19 ,  H04N1/192 ,  G02B26/08

CPC classification number: H04N1/053 ,  G02B26/12 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/19 ,  H04N1/192 ,  H04N2201/0471 ,  H04N2201/04786

Abstract: Disclosed is a scanning apparatus having a cascade scanning optical system. The scanning apparatus includes: a first scanning optical system for deflecting a first scanning laser beam to scan a scanning surface; a second scanning optical system for deflecting a second scanning laser beam to scan the scanning surface, wherein each of the first and second scanning optical systems is a telecentric system; a beam splitter positioned such that a first portion of the first scanning laser beam which has been reflected by the beam splitter and a first portion of the second scanning laser beam which has passed through the beam splitter proceed to the scanning surface on a common line thereon extending in a main scanning direction in respective different adjacent ranges of the common line to generate a single scanning line on the scanning surface by a combination of the first portion of the first scanning laser beam and the first portion of the second scanning laser beam; and a first laser beam detector fixed at a position to detect a second portion of the first scanning laser beam which has passed through the beam splitter and a second portion of the second scanning laser beam which has been reflected by the beam splitter when the first and second laser beams start scanning the respective different adjacent rang of the common line.

Abstract translation: 公开了一种具有级联扫描光学系统的扫描装置。 扫描装置包括：第一扫描光学系统，用于偏转第一扫描激光束以扫描扫描表面; 用于偏转第二扫描激光束扫描扫描表面的第二扫描光学系统，其中第一和第二扫描光学系统中的每一个是远心系统; 分束器，其被定位成使得已经被分束器反射的第一扫描激光束的第一部分和已经通过分束器的第二扫描激光束的第一部分在其上的公共线上前进到扫描表面 在公共线的各个不同相邻范围内沿主扫描方向延伸，通过第一扫描激光束的第一部分和第二扫描激光束的第一部分的组合在扫描表面上产生单个扫描线; 以及第一激光束检测器，其固定在检测已经通过所述分束器的所述第一扫描激光束的第二部分和所述第二扫描激光束的第二部分的位置，所述第二扫描激光束当所述第一和第二扫描激光束被所述第一和第二扫描激光束反射时， 第二激光束开始扫描公共线的各个不同相邻的范围。