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1. 发明专利

JP2010131839A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010131839A
公开(公告)日：2010-06-17
申请号：JP2008309315
申请日：2008-12-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IZUMIKAWA MANABU , KIGUCHI HIROYUKI , TAKAHASHI NAOTA
IPC分类号： B41J2/01
摘要： PROBLEM TO BE SOLVED: To solve the problem that in an image forming apparatus, optical paths with equal light volume can not be formed to a plurality of nozzle rows, a drop detecting condition is hardly detected, a constitution for obtaining the equal light volume becomes complicated, or a processing for detection becomes complicated.
SOLUTION: The image forming apparatus includes a light emitting means (a light emitting part) 121 consisting of LD and a light receiving means (a light receiving part) 131 consisting of PD, and also includes a convex lens 122 and a collimate lens 123 as a light refractive means for refracting an outgoing radiation 101 from the light emitting part 121 and turning it into parallel light, and a plurality of light dividing and reflecting means 141 for dividing the parallel light 102 into a plurality of lights and forming the optical paths 103 corresponding to the nozzle rows 112 of the recording head 11 by receiving a part of the parallel light 102 from the collimate lens 123 constituting the light refractive means and reflecting the light.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题为了解决在图像形成装置中不能形成与多个喷嘴列相等的光量的光路的问题，难以检测出液滴检测条件，获得相等的结构光量变得复杂，或者检测处理变得复杂。解决方案：图像形成装置包括由LD组成的发光装置（发光部分）121和由PD组成的光接收装置（光接收部分）131，并且还包括凸透镜122和准直透镜123作为用于从发光部分121折射输出辐射101并将其转换成平行光的光折射装置;以及多个分光反射装置141，用于将平行光102分成多个光并形成通过从构成光折射装置的准直透镜123接收来自反射光的平行光102的一部分，对应于记录头11的喷嘴列112的光路103。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2011140118A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2011140118A
公开(公告)日：2011-07-21
申请号：JP2010000375
申请日：2010-01-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI NAOTA
IPC分类号： B41J2/01
摘要： PROBLEM TO BE SOLVED: To detect the discharge condition of a nozzle in real time without sensing another factor or increasing a memory capacity.
SOLUTION: An image forming apparatus selects a target nozzle for comparison to which the same driving waveform is given at the same drop discharge timing, compares each response waveform from two or more piezoelectric elements to which the same driving waveform has been applied by discharging liquid droplets from the nozzle caused by the applied driving waveform, detects the difference thereof, determines if the difference is below a predefined reference value, and also determines that the target nozzle for comparison discharges normally if the difference is the reference value or less, or that the target nozzle for comparison is in an abnormal discharge state when the difference exceeds the reference value.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：无需检测其他因素或增加存储容量即可实时检测喷嘴的排放状况。解决方案：图像形成装置选择在相同的滴定放电时刻给出相同的驱动波形的比较用的目标喷嘴，将来自已经施加了相同驱动波形的两个或更多个压电元件的响应波形与由所施加的驱动波形引起喷嘴中的液滴，检测其差异，确定差异是否低于预定的参考值，并且还确定用于比较的目标喷嘴如果该差值是参考值或更小则放电正常，或者当差异超过参考值时，用于比较的目标喷嘴处于异常排出状态。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2010173270A Image formation device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010173270A
公开(公告)日：2010-08-12
申请号：JP2009020941
申请日：2009-01-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KIGUCHI HIROYUKI , IZUMIKAWA MANABU , TAKAHASHI NAOTA
IPC分类号： B41J2/01
摘要： PROBLEM TO BE SOLVED: To solve the problem that it takes much time to detect the discharge state of each nozzle of a plurality of nozzle arrays.
SOLUTION: A detection substrate 71 is arranged in a liquid droplet discharge state detection section 7 for detecting the discharge state of liquid droplets discharged from each nozzle 52 of each recording head 51, each electrode 73 is scatteringly arranged in the intersection of an x array in the nozzle array direction and y array in the direction orthogonal to the nozzle array direction on the detection substrate 71, and the liquid droplet discharge state of the nozzles 102 are detected by detecting a change in electrical property due to landing of the liquid droplets between the electrodes 73, 73 adjacent to each other.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了解决检测多个喷嘴阵列中的每个喷嘴的排出状态需要花费大量时间的问题。解决方案：检测基板71布置在液滴喷射状态检测部分7中，用于检测从每个记录头51的每个喷嘴52排出的液滴的排出状态，每个电极73散布地布置在 x阵列在与检测基板71上的喷嘴排列方向正交的方向上的y阵列，并且通过检测由于液体的着落引起的电特性的变化来检测喷嘴102的液滴排出状态彼此相邻的电极73,73之间的液滴。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2014135380A Light emission control device, and image forming apparatus, method, and program 审中-公开
标题翻译：光发射控制装置和图像形成装置，方法和程序
公开(公告)号：JP2014135380A
公开(公告)日：2014-07-24
申请号：JP2013002553
申请日：2013-01-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI NAOTA
IPC分类号： H01S5/0683 , B41J2/44 , G03G15/00 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a light emission control device, and an image forming apparatus, method, and program for preventing unnecessary consumption of a laser diode and power consumption due to automatic light intensity control, and improving quality of printed images.SOLUTION: A light emission control device of the present invention calculates the intensity of light actually emitted from a light emitting device, and derives a target intensity of light that is to be emitted from the light emitting device, by using light intensity correction information from which the target intensity of light that is to be emitted from the light emitting device can be derived according to the gradation of pixels in image data. The light emission control device then uses the intensity of actually emitted light and the target intensity of light to correct the intensity of light to be emitted from the light emitting device.
摘要翻译：要解决的问题：提供一种发光控制装置，以及用于防止不必要地消耗激光二极管的图像形成装置，方法和程序，以及由于自动光强度控制引起的功率消耗，并提高打印图像的质量。解决方案：本发明的发光控制装置计算从发光装置实际发射的光的强度，并且通过使用光强度校正信息来导出从发光装置发射的光的目标强度，可以根据图像数据中的像素的灰度导出从发光器件发射的光的强度。然后，发光控制装置使用实际发射的光的强度和目标光强来校正要从发光装置发射的光的强度。

5. 发明专利

JP2013061567A Optical scanning device, image forming apparatus, and optical scanning method 审中-公开
标题翻译：光学扫描装置，图像形成装置和光学扫描方法
公开(公告)号：JP2013061567A
公开(公告)日：2013-04-04
申请号：JP2011201157
申请日：2011-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI NAOTA
IPC分类号： G02B26/10 , B41J2/44 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an optical scanning device, an image forming apparatus and an optical scanning method which stabilize division of a light flux and can suppress deterioration of image quality.SOLUTION: In an optical scanning device, a prism 104 divides a laser beam 121 in a sub-scanning direction perpendicular to a main scanning direction, a liquid crystal shutter 105 alternately transmits each of a divided laser beam 122 and a divided laser beam 123 which are divided in the sub-scanning direction therethrough according to reciprocating scanning of an MEMS mirror 106, and a control section for controlling voltage application to a liquid crystal layer of the liquid crystal shutter controls the liquid crystal shutter so that the liquid crystal shutter can transmit the divided laser beam 122 therethrough during forward scanning of the MEMS mirror 106, and controls the liquid crystal shutter so that the liquid crystal shutter can transmit the divided laser beam 123 therethrough during backward scanning of the MEMS mirror 106.
摘要翻译：解决的问题：提供一种光学扫描装置，图像形成装置和光学扫描方法，其稳定光束的分割并且可以抑制图像质量的劣化。解决方案：在光学扫描装置中，棱镜104沿垂直于主扫描方向的副扫描方向划分激光束121，液晶快门105交替地传送分割的激光束122和分割激光器光束123，其根据MEMS反射镜106的往复扫描沿副扫描方向分割;以及用于控制对液晶快门的液晶层的施加电压的控制部分，控制液晶快门，使得液晶快门快门可以在MEMS反射镜106的正向扫描期间透射分割的激光束122，并且控制液晶快门，使得液晶快门可以在MEMS反射镜106的反向扫描期间透射分割的激光束123。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2011235526A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2011235526A
公开(公告)日：2011-11-24
申请号：JP2010108522
申请日：2010-05-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI NAOTA
IPC分类号： B41J2/045 , B41J2/01 , B41J2/055 , B41J2/205
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that corrects error in assembling mechanical parts by a control to generate a discharge timing and discharge droplet size for individual nozzle, thereby achieving a higher image quality of an output image.SOLUTION: The image forming apparatus includes an inkjet head having a plurality of nozzles. The apparatus is configured such that: a mask control signal controls a signal for driving an actuator of each nozzle by driving waveform, a signal for controlling a pixel gradation and a discharging timing by masking the driving waveform, and an actuator drive signal; and the timing of the mask control signal and the on-time of the mask control signal controls the discharging timing and the discharge liquid size, respectively, for each actuator of each nozzle.
摘要翻译：要解决的问题：提供一种图像形成装置，其通过控制来校正组装机械部件的误差，以产生用于单个喷嘴的排出定时和排出液滴尺寸，从而实现输出图像的较高图像质量。解决方案：图像形成装置包括具有多个喷嘴的喷墨头。该装置被配置为：掩模控制信号通过驱动波形来控制用于驱动每个喷嘴的致动器的信号，通过屏蔽驱动波形来控制像素灰度的信号和放电定时以及致动器驱动信号; 并且掩模控制信号的定时和掩模控制信号的接通时间分别对每个喷嘴的每个致动器控制排出时间和排出液体尺寸。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2012101408A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2012101408A
公开(公告)日：2012-05-31
申请号：JP2010250706
申请日：2010-11-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI NAOTA
IPC分类号： B41J2/045 , B41J2/055 , B41J2/205
摘要： PROBLEM TO BE SOLVED: To optimize the number of times of fine drive control because conventional fine drive control may be carried out more than necessary for the purpose of preventing the meniscus surface of a head from drying and preventing ink from thickening.SOLUTION: Discharge control data, i.e. the control data accompanied by discharge of an ink drop from a nozzle, is generated from an input image data. On the basis of the discharge control data thus generated, fine driving for vibrating a nozzle before an ink drop is discharged from the nozzle is carried out.
摘要翻译：要解决的问题：为了优化精细驱动控制的次数，因为为了防止头部的弯液面表面干燥并防止油墨变稠，可以进行超出所需的常规精细驱动控制。解决方案：从输入图像数据生成放电控制数据，即伴随着从喷嘴排出墨滴的控制数据。基于这样产生的排放控制数据，执行在从喷嘴排出墨滴之前对喷嘴进行振动的精细驱动。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2010274637A Method for controlling ink drop ejection, and inkjet recorder 有权
标题翻译：用于控制墨滴喷射的方法和喷墨记录器
公开(公告)号：JP2010274637A
公开(公告)日：2010-12-09
申请号：JP2009132448
申请日：2009-06-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HORIE TAISUKE , ICHIMURA SANENORI , TAKAHASHI NAOTA
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling ink drop ejection which has stable ink drop ejection characteristics and high reliability. SOLUTION: In the case that a medium to be recorded is conveyed at a constant speed, a period of driving timing calculated from resolution and scanning speed of an inkjet recorder is specified as a specified time, when a time interval of a (n+1)th driving timing, which follows an n-th driving timing (n is one or more integers), is longer than the specified time, an additional timing is set before the specified time in advance of the (n+1)th driving timing, and fine drive of an ink in a pressure chamber is performed at the additional timing. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有稳定的墨滴喷射特性和高可靠性的用于控制墨滴喷射的方法。解决方案：在要记录的介质以恒定速度传送的情况下，将从喷墨记录器的分辨率和扫描速度计算的驱动时间的周期指定为指定时间，当（第n + 1）个驱动定时（n是一个或多个整数）比规定时间长，在第（n + 1）个之前的规定时间之前设定附加定时，在附加定时执行压力室中的墨的精细驱动。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2010167721A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010167721A
公开(公告)日：2010-08-05
申请号：JP2009013728
申请日：2009-01-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI NAOTA , KIGUCHI HIROYUKI , IZUMIKAWA MANABU
IPC分类号： B41J2/01
摘要： PROBLEM TO BE SOLVED: To reduce the detecting time of delivery state, which is required longer conventionally by detecting the delivery state of each an each nozzle in a plurality of nozzle trains.
SOLUTION: The delivery states of droplets 100 from each nozzle 111 of four recording heads 11 are detected simultaneously with one another by a droplet delivery state detecting device for detecting droplets 100 delivered from each nozzle 111 of each recording head 11K, 11C, 11M and 11Y, which has a light emitting means 121 for being generated light 151 including spectral component corresponding to the droplet having each color and a light receiving means (a light receiving part) 131 under the condition that the light 151 emitted from the light emitting means 121 is converted into a parallel detecting light 152 and reflected by a reflecting means 123 so as to form an optical path, which crosses normal to a droplet delivering direction and, at the same time, crosses with the nozzle arranging direction of each recording head 11 at just below each recording head 11 in order to irradiate the detecting light 152 against each droplet 100 of the four recording head 11 through an optical path inclined by the angle θ to the direction normal to the nozzle arranging direction.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过检测多个喷嘴列中的每个喷嘴的每个喷嘴的传送状态来缩短传统状态的检测时间，这通常是较长的要求。解决方案：通过用于检测从每个记录头11K，11C的每个喷嘴111传送的液滴100的液滴传送状态检测装置，同时检测来自四个记录头11的每个喷嘴111的液滴100的传送状态， 11M和11Y具有发光装置121，用于产生光151，其包括对应于具有各种颜色的液滴的光谱分量和光接收装置（光接收部分）131，条件是从发光的光151发出装置121被转换成平行检测光152并被反射装置123反射，以便形成一个与液滴传送方向垂直的光路，同时与每个记录头的喷嘴排列方向相交 11，以便在每个记录头11的正下方，通过光学拍照将检测光152照射到四个记录头11的每个液滴100上 h相对于垂直于喷嘴排列方向的方向倾斜角度θ。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2010064402A Discharge detecting device and image forming device 审中-公开
标题翻译：放电检测装置和图像形成装置
公开(公告)号：JP2010064402A
公开(公告)日：2010-03-25
申请号：JP2008234052
申请日：2008-09-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI NAOTA , KIGUCHI HIROYUKI , IZUMIKAWA MANABU
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To reduce the number of light emitting elements and the number of light receiving elements, and to highly accurately detect discharging.
SOLUTION: Light collimated through a collimator lens 22 from the light emitting element 21 aligns its optical path 25 against second mirrors 41-44 with respect to each turn table so as to correspond to each head and nozzle train by selecting the reflecting angle of a mirror 23 with a turn table 24. The second mirror with the turn table intersects its optical path 25 with the flying passage of ink droplets discharged from each nozzle by aligning the optical path 25 against immediately beneath the nozzle and against the corresponding one among the light receiving elements 31-34, resulting in making the detection of a discharged state and a non-discharged state possible by whether light interrupted by the ink droplets or not. Accordingly, the selection of the second mirrors 41-44 with each turn table or each nozzle train by the optical path 25 becomes possible according to the reflecting angle of the mirror 23, thus enabling to detect each nozzle train by a single LD (light emitting element) 21.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：减少发光元件的数量和光接收元件的数量，并高精度地检测放电。解决方案：通过准直透镜22从发光元件21准直的光使其光路25相对于每个转台对准第二反射镜41-44，以便通过选择反射角度对应于每个喷头和喷嘴列具有转台24的反射镜23.具有转台的第二反射镜与其光路25相交，其中墨滴的飞行通道从每个喷嘴排出，通过将光路25对准在喷嘴的正下方并对准相应的一个光接收元件31-34，导致通过是否被墨滴中断的光可以进行放电状态的检测和非放电状态。因此，根据反射镜23的反射角度，通过光路25选择具有每个转台或每个喷嘴列的第二反射镜41-44，从而能够通过单个LD（发光）检测每个喷嘴列元素）21.版权所有（C）2010，JPO＆INPIT

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