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公开(公告)号：JP2008070801A
公开(公告)日：2008-03-27
申请号：JP2006251495
申请日：2006-09-15
申请人： Ricoh Co Ltd , 株式会社リコー
IPC分类号： G03G15/01 , B41J2/44 , G03G15/04 , G03G15/043 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus, wherein the time required for assembling the apparatus can be shortened and color slippage due to the fluctuation in rotational angular velocity of a photoreceptor is made minimum, while suppressing large size and weight increase of the apparatus. SOLUTION: The writing position of the photoreceptor is made variable in a sub-scanning line direction, based on beam position correction data calculated from the positional deviation data of the angular velocity fluctuation of the photoreceptor as a latent image carrier, to suppress the color slippage due to the fluctuation in angular velocity of the photoreceptor. Thus, it is unnecessary to provide a driving motor for each photoreceptor. As a result, the apparatus can be suppressed from being increased in size and weight. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译： 要解决的问题：提供一种图像形成装置，其中可以缩短组装装置所需的时间，并且由于感光体的旋转角速度的波动而导致的颜色滑动最小化，同时抑制大尺寸和重量 增加装置。 解决方案：根据从作为潜像载体的感光体的角速度波动的位置偏差数据计算的光束位置校正数据，使感光体的写入位置在副扫描线方向上变化，以抑制 由于感光体的角速度的波动引起的颜色滑动。 因此，不需要为每个感光体提供驱动电动机。 结果，可以抑制装置的尺寸和重量的增加。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2006150687A
公开(公告)日：2006-06-15
申请号：JP2004342846
申请日：2004-11-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAKAGAMI YOSHINOBU , SAKAUCHI KAZUNORI , YAMAZAKI KOZO , MATSUMAE IWAO , KUSUSE NOBORU , TAKENAKA YASUTA
摘要： PROBLEM TO BE SOLVED: To provide an optical writer comprising a housing fixed with an optical element, and a cover member for closing the upper opening of the housing in which variation in posture or position of the optical element can be suppressed even upon occurrence of thermal variation in peripheral environment by avoiding occurrence of pulling between the housing and the cover, and to provide an image forming apparatus.
SOLUTION: A plurality of fastening portions are provided between two members of the housing and the cover member and its fastening means is a stepped screw 80 or a snap fit fastening mechanism (31d, 71d) which does not fasten the two members completely in all directions.
COPYRIGHT: (C)2006,JPO&NCIPI摘要翻译： 要解决的问题：提供一种光学写入器，其包括固定有光学元件的壳体，以及用于封闭壳体的上部开口的盖构件，其中可以抑制光学元件的姿势或位置的变化，即使在 通过避免壳体和盖子之间的拉动的发生，从而发生周边环境的热变化，并提供图像形成装置。 解决方案：在壳体的两个构件和盖构件之间设置多个紧固部分，并且其紧固装置是阶梯螺钉80或卡扣配合紧固机构（31d，71d），其不完全固定两个构件 四面八方。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2008033141A
公开(公告)日：2008-02-14
申请号：JP2006208507
申请日：2006-07-31
申请人： Ricoh Co Ltd , 株式会社リコー
CPC分类号： G02B26/127 , G02B27/0031 , G06K15/1219
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner in which the time until the beginning of correction of a shift is shortened and to provide an image forming apparatus. SOLUTION: The color shift is corrected at a deflection speed slower than the deflection speed of a polygon mirror being a deflection means when a latent image is written on the surface of a photoreceptor being a latent image carrier. Thus, the color shift is corrected at an earlier time than the case where the color shift is corrected after the deflection speed is attained for writing the latent image on the surface of the photoreceptor. Further, the color shift is corrected with low energy and low noise. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译： 要解决的问题：提供一种光学扫描器，其中直到开始校正偏移的时间被缩短并且提供图像形成装置。 解决方案：当将潜像写入作为潜像载体的感光体的表面上时，以偏转装置的多面镜的偏转速度慢的偏转速度来校正色移。 因此，与在将潜像写入感光体的表面上获得偏转速度之后校正色移的情况相比，颜色偏移更早地被校正。 此外，以低能量和低噪声校正色移。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007219256A
公开(公告)日：2007-08-30
申请号：JP2006040826
申请日：2006-02-17
申请人： Ricoh Co Ltd , 株式会社リコー
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of obtaining superior image quality by correcting color shift or the like due to scanning line bend. SOLUTION: At the time of a detection mode, a control means for correcting/controlling color shift of each color forms color shift detecting patterns 82a-82c on a transfer body belt 5, sets as a reference scanning line the color that goes through a lens furthest away from polygon mirrors 26, 27, among a plurality of scanning lines obtained by color shift pattern detecting sensors 81a-81c, and stores in a memory 342 the data of the reference scanning line and the correction values of the scanning line bend of other colors against the reference scanning line. In forming an image, the controller reads the furthermost data of the reference scanning line and the correction values of the scanning line bend of other colors stored in the memory 342, and performs correction to adjust a laser irradiation position to the reference scanning line, in accordance with the correction values via vertical scanning deflection elements 110, 111. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译： 要解决的问题：提供一种能够通过校正由扫描线弯曲引起的颜色偏移等而获得优异图像质量的图像形成装置。 解决方案：在检测模式时，用于校正/控制每种颜色的色移的控制装置在转印体带5上形成色移检测图案82a-82c，将作为参考扫描线的颜色设置为 在通过色移模式检测传感器81a-81c获得的多条扫描线中，通过距离多面镜26,27最远的透镜，并将存储在存储器342中的参考扫描线的数据和扫描线的校正值 与参考扫描线相反的其他颜色的弯曲。 在形成图像时，控制器读取存储在存储器342中的参考扫描线的最里面的数据和其他颜色的扫描线弯曲的校正值，并且执行校正以将激光照射位置调整到参考扫描线， 根据经由垂直扫描偏转元件110,111的校正值。（C）2007年，JPO和INPIT
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公开(公告)号：JP2006162971A
公开(公告)日：2006-06-22
申请号：JP2004354340
申请日：2004-12-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUSUSE NOBORU , SAKAUCHI KAZUNORI , MATSUMAE IWAO , YAMAZAKI KOZO , SAKAGAMI YOSHINOBU , TAKENAKA YASUTA
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner the optical element of which is fixed by a supporting means, and also to provide an image forming apparatus.
SOLUTION: The optical scanner is equipped with: a light source for emitting a light beam; an optical device for converting the light beam to a parallel beam; a plurality of holders for fixing the light source and the optical device; a deflector for deflecting/scanning the light beam emitted from the light source; an image forming optical system that makes the deflected light beam form an image on the surface of a photoreceptor; and a resin housing for storing the holders, a rotary polygon mirror and imagers. In this optical scanner, the imagers are of the same or similar shape and stacked in the sub-scanning direction, thereby eliminating lens sink generated when an optical device is made with one lens, improving the component yield, and also eliminating optical failures.
COPYRIGHT: (C)2006,JPO&NCIPI摘要翻译： 要解决的问题：提供其光学元件由支撑装置固定的光学扫描器，并且还提供图像形成装置。 解决方案：光学扫描器配备有：用于发射光束的光源; 用于将光束转换成平行光束的光学装置; 多个用于固定光源和光学装置的保持器; 用于偏转/扫描从光源发射的光束的偏转器; 使得偏转的光束在感光体的表面上形成图像的成像光学系统; 以及用于容纳保持器的树脂壳体，旋转多面镜和成像器。 在该光学扫描器中，成像器具有相同或相似的形状并且在副扫描方向上堆叠，从而消除了当用一个透镜制造光学装置时产生的透镜沉没物，提高了部件的产量，并且还消除了光学故障。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006084763A
公开(公告)日：2006-03-30
申请号：JP2004269314
申请日：2004-09-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAZAKI KOZO , KUSUSE NOBORU , MATSUMAE IWAO , SAKAUCHI KAZUNORI , TAKENAKA YASUTA , SAKAGAMI YOSHINOBU
CPC分类号： H04N1/1135 , H04N2201/04744
摘要： PROBLEM TO BE SOLVED: To improve the workability of assembly and to reduce costs by detecting a plurality of beams with a synchronization detection part without complicating the structure of an image forming element.
SOLUTION: A synchronization detection mirror 61 is provided which guides two laser beams L1 and L2 to the synchronization detection part 45 while tilting the laser beams with respect to a housing 40, and two laser beams L1 and L2 guided by the synchronization detection mirror 61 are converged. A synchronization detection part 45 is provided which is furnished with a tilted lens 64, an optical detection substrate 66 including a photoelectric element 65 which detects two laser beams L1 and L2 converged with the lens 64, and a holding member 67 which holds the lens 64 and the optical detection substrate 66.
COPYRIGHT: (C)2006,JPO&NCIPI摘要翻译： 要解决的问题：通过用同步检测部分检测多个光束来提高组装的可操作性并降低成本，而不会使图像形成元件的结构复杂化。 解决方案：提供了同步检测镜61，其将两个激光束L1和L2引导到同步检测部分45，同时相对于壳体40倾斜激光束，并且由同步检测引导的两个激光束L1和L2 镜61会聚。 设置有倾斜透镜64的同步检测部45，包括检测与透镜64会聚的两个激光束L1和L2的光电元件65的光学检测基板66以及保持透镜64的保持部件67 和光学检测基板66.版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005316286A
公开(公告)日：2005-11-10
申请号：JP2004136188
申请日：2004-04-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUMAE IWAO
IPC分类号： B41J29/377 , G03G21/20
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus with a flow passage (duct) which intakes air nearly over the entire part of the width of rollers without deviation in the width direction of the rollers, do not affect the layout within the device and improves the efficiency of the air current by the duct without impairing the ease of attachment. SOLUTION: The image forming apparatus comprises an image forming section 2 for forming a toner image, a fixing means 7 for fixing the toner image transferred to a sheet, and a fan motor 17 for cooling the interior of the apparatus. The fan motor 17 is installed in such a manner that the direction of the air current of at least one fan exists downstream from upstream with respect to a conveyance direction of a sheet ejection/loading section 5 and a portion of the flow passage 18 of the air current is disposed right below an exterior cover forming the ejection/loading section 5 and is made into a suspended structure that a portion of the duct 18 is freely glidable in a perpendicular direction of the external cover 5. Such positional relation that when the external cover 5 is mounted on the main body, the cover comes into contact or proximity with or to the fan motor 17 disposed on the main body side or the duct 18 incidental thereto, is set. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译： 要解决的问题：为了提供一种图像形成装置，其具有在辊的宽度方向上几乎接近滚子宽度的整个部分而没有偏差的空气流动通道（管道），不影响辊子的宽度方向内的布局 该装置并且通过管道提高气流的效率而不损害附接的容易性。 解决方案：图像形成装置包括用于形成调色剂图像的图像形成部分2，用于固定转印到片材上的调色剂图像的固定装置7和用于冷却装置内部的风扇电机17。 风扇马达17安装成使得至少一个风扇的气流的方向相对于纸张排出/装载部分5的输送方向和流动通道18的一部分的上游存在于下游 气流被设置在形成喷射/装载部分5的外部盖的正下方，并且被制成悬挂结构，使得管道18的一部分在外盖5的垂直方向上可自由滑动。这样的位置关系，即当外部 盖5安装在主体上，盖子与设置在主体侧的风扇马达17或与其附接的管道18接触或接近。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005196079A
公开(公告)日：2005-07-21
申请号：JP2004004633
申请日：2004-01-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUMAE IWAO
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus in which the same cooling means can be shared to cool an area where temperature tends to become high with the heat of a fixing part, such as the area located above the fixing part or the area where paper ejected from the fixing part is inverted back to front, and an image reading part that has an illumination lamp that emits light to the image of a document. SOLUTION: The image forming apparatus includes an image reading part 103, a fixing device 107, an inverted paper ejection part 200, and a motor fan 230. Openings 240a and 211a for the motor fan 230 are disposed opposite an area including a space between the image reading part 103 and the inverted paper ejection part 200 so that the direction of ventilation is in the direction of the width of paper and perpendicular to the direction of the conveyance of the paper. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译： 要解决的问题：提供一种图像形成装置，其中可以共享相同的冷却装置以通过固定部分的热量（例如位于固定部分上方的区域）来冷却温度趋于变高的区域 或者从固定部分排出的纸张被反向回到前面的区域，以及具有向文件的图像发光的照明灯的图像读取部分。 解决方案：图像形成装置包括图像读取部103，定影装置107，反转纸张排出部200和电动机风扇230.用于电动机风扇230的开口240a和211a设置在与包括 图像读取部103与反转纸张排出部200之间的空间，使得通气方向在纸张的宽度方向上并且垂直于纸张的传送方向。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005099819A
公开(公告)日：2005-04-14
申请号：JP2004303170
申请日：2004-10-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HAYASHI YOSHIAKI , SUZUKI SEIZO , MASUDA KOJI , MATSUMAE IWAO
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner that can exhibit stable optical characteristics at a high level.
SOLUTION: The optical scanner 10 has a scanning imaging element 14, which converges luminous flux deflected by a polygon mirror 12 toward a surface to be scanned 3 and makes nearly constant a scanning speed on the surface to be scanned 3 and a housing 15, to which the scanning imaging element 14 is fitted. The housing 15 has 1st projection parts 25a and 25b for fixing a nearly the center part of the scanning imaging element 14 in the main scanning direction D to the housing 15, 2nd projection parts 27a and 27b for supporting both the end parts of the scanning imaging element 14 in the main scanning direction D, and a fixing means 26 of fixing the scanning imaging element 14 to the 1st projection parts 25a and 25b.
COPYRIGHT: (C)2005,JPO&NCIPI摘要翻译： 要解决的问题：提供可以在高水平上表现出稳定的光学特性的光学扫描仪。 解决方案：光学扫描器10具有扫描成像元件14，其将由多面镜12偏转的光束朝向被扫描表面3收敛，并使待扫描表面3上的扫描速度几乎恒定， 如图15所示，扫描成像元件14装配到该图像。 壳体15具有用于将扫描成像元件14的主扫描方向D的大致中心部分固定到壳体15的第一突出部25a和25b，用于支撑扫描成像的两个端部的第二突起部27a和27b 主扫描方向D上的元件14以及将扫描成像元件14固定到第一突出部25a和25b的固定装置26。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004117394A
公开(公告)日：2004-04-15
申请号：JP2002276325
申请日：2002-09-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUMAE IWAO
摘要： PROBLEM TO BE SOLVED: To provide a driving releasing device for an image forming apparatus equipped with a driving device capable of using a single main motor installed previously as it is by easy control without causing cost rising. SOLUTION: The driving releasing device is attached to the image forming apparatus 1, and a driving switching means has a rocking member 18 pivotally supported in an image forming apparatus main body 10A and a spring 20 energizing the transmission gear 17 of a gear end 18A in a direction where it is separated from the gear 6A1 on a fixing means 6A side, and the gear 17 is maintained at a regular position P1 where it is driven with the gear 6A1 by making an interlocking operation member 19 push in an elastic operation end 20B and canceling a state where the elastic force of the spring 20 is exerted on an operation end 18B when a door is closed, and the gear 17 is transited to posture at a releasing position P2 where it is separated from the gear 6A1 by making the member 19 cancel the push-in of the end 20B when the door is opened. COPYRIGHT: (C)2004,JPO
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