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1. 发明专利

JP2011037201A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2011037201A
公开(公告)日：2011-02-24
申请号：JP2009188497
申请日：2009-08-17
申请人： Ricoh Co Ltd , Ricoh Elemex Corp , リコーエレメックス株式会社 , 株式会社リコー
发明人： TAKAHASHI NAOTA , IZUMIKAWA MANABU , ITO KAZUMASA , HAYASHI HIRONAO
IPC分类号： B41J2/01
CPC分类号： B41J2/2142 , B41J2/16579
摘要： PROBLEM TO BE SOLVED: To provide an image forming device that includes a means for detecting not only discharging presence of drop droplets and presence of discharge bending but also a direction and an amount of discharge bending. SOLUTION: The image forming device includes: a droplet discharge means; a droplet discharge detection means for detecting a change in the received light amount of a light receiving element 130 when a detected beam 162 converted into sheet light intersects a droplet 150; an angle changing means for changing an angle between the longitudinal direction of the detected beam and the normal discharge direction 170 of the droplet, and a discharge state determination means for inclining the longitudinal plane of the detected beam to form a first angle with respect to a vertical surface, and then inclining the plane to form a second angle where negative and positive sides are different from those of the first angle by the angle changing means, performing the discharge detection operation by the droplet discharge detection means, and determining the discharge state of the droplet based on the result. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像形成装置，其包括用于不仅检测滴液滴的存在和存在放电弯曲的装置，还包括放电弯曲的方向和量。图像形成装置包括：液滴排出装置; 液滴喷射检测装置，用于当被检测的光束162转换为片状光时，检测光接收元件130的接收光量的变化; 用于改变检测光束的纵向方向与液滴的正常排出方向170之间的角度的角度改变装置，以及用于使所检测的光束的纵向平面倾斜以相对于第一角度形成第一角度的排出状态确定装置然后通过角度改变装置使平面倾斜以形成第二角度，其中负侧和正面与第一角度不同，通过液滴喷射检测装置执行排出检测操作，并且确定排出状态基于液滴的结果。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2013144604A Paper conveyance state detecting device, paper conveyance state detecting method, and control program 审中-公开
标题翻译：纸张输送状态检测装置，纸张输送状态检测方法和控制程序
公开(公告)号：JP2013144604A
公开(公告)日：2013-07-25
申请号：JP2012006496
申请日：2012-01-16
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SUZUKI DAISUKE , ITO KAZUMASA
IPC分类号： B65H7/10 , B41J11/42 , B65H7/14
摘要： PROBLEM TO BE SOLVED: To prevent an increase in sensor cost while enabling high-accuracy measurement to detect a paper conveyance state more accurately.SOLUTION: A paper conveyance state detecting device includes: a pair of irradiation means for irradiating two spots, with a light beam, separated in a direction perpendicular to a conveyance direction of a paper conveyance path in which paper to be detected is conveyed, respectively; one light receiving means for receiving the two light beams reflected by the paper which is conveyed in the paper conveyance path in a different area on a light receiving face; a light guide means for guiding the two light beams reflected by the paper onto the light receiving face; and a detection means which detects the presence of the paper and computes a moving amount of the paper on the basis of a speckle pattern which is imaged on the light receiving face, and detects the paper conveyance state on the basis of the detected presence or absence of the paper and the computed movement of the paper.
摘要翻译：要解决的问题：为了防止传感器成本的增加，同时能够进行高精度测量以更准确地检测纸张输送状态。解决方案：纸张输送状态检测装置包括：一对照射装置，分别在与传送要检测的纸张的纸张传送路径的传送方向垂直的方向上分离; 一个光接收装置，用于接收由在纸传送路径中在光接收面上的不同区域中传送的纸反射的两个光束; 用于将由纸张反射的两束光引导到光接收面上的导光装置; 以及检测装置，其检测纸张的存在并且基于成像在光接收面上的散斑图案来计算纸张的移动量，并且基于检测到的有无检测来检测纸张传送状态的纸张和计算的纸的运动。

3. 发明专利

JP2012218420A Liquid discharge failure detecting device and inkjet recording apparatus 有权
标题翻译：液体排出故障检测装置和喷墨记录装置
公开(公告)号：JP2012218420A
公开(公告)日：2012-11-12
申请号：JP2011090059
申请日：2011-04-14
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： HAYASHI HIRONAO , ITO KAZUMASA , SUZUKI DAISUKE
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To further improve accuracy in positional alignment of a nozzle row with an optical axis of an optical beam used for discharge detection in a liquid discharge failure detecting device.SOLUTION: The liquid discharge failure detecting device includes a head-moving means which moves a recording head relatively in the direction intersecting the optical axis of the optical beam, a liquid droplet discharging means which discharges a liquid droplet alternately from at least two nozzles separate from each other, a measuring means which obtains an output of a light-receiving element at each head position, an output distribution calculating means which finds an output distribution at each head position from the obtained output, a position calculating means which calculates a position in the direction intersecting the optical axis from a peak on the side with a higher intensity out of peaks in the output distribution, an angle calculating means which calculates an angle in the horizontal direction from two peaks in the output distribution, and an adjusting means which adjusts a bent angle between the direction intersecting the optical axis and the horizontal direction.
摘要翻译：要解决的问题：为了进一步提高喷液排与用于排液故障检测装置中的放电检测的光束的光轴的位置对准的精度。解决方案：液体排出故障检测装置包括：头部移动装置，其在与光束的光轴相交的方向上相对移动记录头;液滴排出装置，其从至少两个喷嘴彼此分离，获得每个头部位置处的光接收元件的输出的测量装置;输出分布计算装置，其从所获得的输出中找到每个头位置的输出分布;位置计算装置，在与输出分布中的峰值之间具有较高强度的侧面上的峰值在与光轴相交的方向上的位置;角度计算装置，其从输出分布中的两个峰值计算水平方向的角度;以及调节装置其调节与光轴相交的方向与水平方向之间的弯曲角度。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012086478A Liquid discharge failure detector, ink jet recorder, and liquid discharge failure detecting method 有权
标题翻译：液体放电故障检测器，喷墨记录仪和液体排出故障检测方法
公开(公告)号：JP2012086478A
公开(公告)日：2012-05-10
申请号：JP2010235955
申请日：2010-10-20
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SUZUKI DAISUKE , INOUE YASUYUKI , HAYASHI HIRONAO , ITO KAZUMASA
IPC分类号： B41J2/01
摘要： PROBLEM TO BE SOLVED: To accurately determine liquid discharge failure.SOLUTION: The liquid discharge failure detector 1 irradiates a light beam 104 from 102 on a flight path of a liquid droplet 107 discharged from a plurality of nozzles 101, receives forward scattering light 109 generated when the light beam 104 collides with the flying liquid droplet 107 at a light receiving part 106, and acquires waveform data corresponding to the change of light intensity of the forward scattering light 109. A discharge control part 111 discharges the liquid droplet 107 from the nozzles 101 which determine the failure, at such an interval that one liquid droplet enters within the beam diameter of the light beam 104. A data processing part 112 stores the waveform data acquired from the discharged liquid droplet 107, and counts feature amounts of the waveform data acquired from the plurality of liquid droplets 107. A failure determination part 113 determines the liquid discharge failure based on the counted feature amounts.
摘要翻译：要解决的问题：准确地确定液体排出故障。解决方案：液体排出故障检测器1从102喷射从多个喷嘴101排出的液滴107的飞行路径上照射光束104，接收当光束104与飞行物相撞时产生的向前散射光109 并且获取与前向散射光109的光强度的变化相对应的波形数据。排出控制部111从判定出故障的喷嘴101排出液滴107，一个液滴在光束104的光束直径内进入的间隔。数据处理部分112存储从排出的液滴107获取的波形数据，并计数从多个液滴107获取的波形数据的特征量。故障确定部113基于计数的特征量来确定液体排出故障。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2011161673A Apparatus for detecting liquid poor delivery and inkjet recording apparatus 审中-公开
标题翻译：用于检测液体不良输送和喷墨记录装置的装置
公开(公告)号：JP2011161673A
公开(公告)日：2011-08-25
申请号：JP2010024274
申请日：2010-02-05
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： SUZUKI DAISUKE , HAYASHI HIRONAO , ITO KAZUMASA
IPC分类号： B41J2/01
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for detecting liquid poor delivery, which conveniently detects the poor delivery of liquid droplets, and to provide an inkjet recording apparatus.
SOLUTION: The apparatus for detecting poor delivery of the liquid includes: a light emitting element 30 for irradiating a plurality of optical beams in which the optical intensity decreases toward the outside from the optical axis, and when observed from a nozzle delivering liquid droplets, the parts decreasing the optical intensity intersect mutually on the flying path of the liquid droplets; a light receiving element 103 for receiving a scattered light generated by colliding a plurality of the optical beams to the liquid droplets; and a detecting part 104 for detecting the poor delivery of the liquid droplets based on the optical intensity of the scattered light.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于检测液体不良输送的装置，其方便地检测液滴的差的输送，并提供喷墨记录装置。用于检测液体输送不良的装置包括：发光元件30，其用于从光轴向外侧照射光强度减小的多个光束，并且当从喷嘴输送液体观察时液滴，降低光强度的部分在液滴的飞行路径上相互交叉; 光接收元件103，用于接收通过将多个光束碰撞到液滴而产生的散射光; 以及检测部104，用于根据散射光的光强度检测液滴的不良输送。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010253771A Liquid-discharge-failure detecting apparatus and inkjet recorder 有权
标题翻译：液体放电故障检测装置和喷墨记录仪
公开(公告)号：JP2010253771A
公开(公告)日：2010-11-11
申请号：JP2009105470
申请日：2009-04-23
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： HAYASHI HIRONAO , ITO KAZUMASA
IPC分类号： B41J2/01
摘要： PROBLEM TO BE SOLVED: To reduce consumption of ink when detecting poor discharge.
SOLUTION: A liquid-discharge-failure detecting apparatus includes a light emitting element 30 for irradiating a light beam to a flight path of liquid droplet discharged from two or more nozzles, a light receiving element 33 for receiving a scattered light produced by the colliding of liquid droplet to the light beam, a detection part 104 for detecting the poor discharge of liquid droplet based on output voltage obtained by receiving the scattered light, and a discharge control part 101 for carrying out the discharging of liquid droplet of the size defined according to the distance between the light emitting element 30 or 33 and the nozzle from each of two or more nozzles.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了在检测到不良的放电时减少墨水的消耗。解决方案：液体排出故障检测装置包括用于将光束照射到从两个或更多个喷嘴排出的液滴的飞行路径的发光元件30，用于接收由两个或更多个喷嘴产生的散射光的光接收元件33 液滴与光束的碰撞，基于通过接收散射光获得的输出电压来检测液滴的不良排出的检测部104;以及用于进行尺寸的液滴的排出的排出控制部101 根据发光元件30或33与来自两个或更多个喷嘴中的每一个的喷嘴之间的距离来定义。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010194937A Liquid ejection failure detecting device, and inkjet recording device 有权
标题翻译：液体排出故障检测装置和喷墨记录装置
公开(公告)号：JP2010194937A
公开(公告)日：2010-09-09
申请号：JP2009043995
申请日：2009-02-26
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： HAYASHI HIRONAO , ITO KAZUMASA
IPC分类号： B41J2/01
摘要： PROBLEM TO BE SOLVED: To determine operation of a detecting device by reproducing an output signal when detecting liquid ejection failure.
SOLUTION: In the liquid ejection failure detecting device 100, a light emission controller 102 controls light emission by a light emitting element 1 according to a light emission control signal 31 having the same pulse width and the same pulse interval as a head control signal 4 controlling ejection of a liquid droplet B. A light receiving part 103 detects second output voltage TP13 obtained by directly receiving a light beam L emitted by the light emitting element 1 by a light receiving element 2 in such a state that the liquid droplet B is not ejected from a nozzle Nn. A detecting operation determination part 105 decides that the liquid ejection failure detecting device 100 normally operates when the second output voltage TP13 synchronizes with the light emission control signal 31, and determines that the liquid ejection failure detecting device 100 malfunctions when the second output voltage TP13 does not synchronize with the light emission control signal 31.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过在检测到液体喷射故障时再现输出信号来确定检测装置的操作。解决方案：在液体喷射故障检测装置100中，发光控制器102根据具有与头部控制相同的脉冲宽度和相同脉冲间隔的发光控制信号31控制发光元件1的发光信号4控制液滴B的喷射。光接收部分103检测通过光接收元件2直接接收由发光元件1发射的光束L而获得的第二输出电压TP13，使得液滴B 不从喷嘴Nn喷射。当第二输出电压TP13与发光控制信号31同步时，检测动作判定部105判定液体喷射故障检测装置100正常动作，并且当第二输出电压TP13确定时液体喷射故障检测装置100发生故障不与发光控制信号31同步。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2010018022A Liquid ejection failure detecting device and inkjet recording device 审中-公开
标题翻译：液体喷射故障检测装置和喷墨记录装置
公开(公告)号：JP2010018022A
公开(公告)日：2010-01-28
申请号：JP2009113395
申请日：2009-05-08
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： HAYASHI HIRONAO , ITO KAZUMASA
IPC分类号： B41J2/01
CPC分类号： B41J2/2142 , B41J2/16579
摘要： PROBLEM TO BE SOLVED: To provide a liquid ejection failure detecting device preventing erroneous detection of a liquid ejection failure due to mist sticking to an optical system, and an inkjet recording device provided with such a liquid ejection failure detecting device.
SOLUTION: The liquid ejection failure detecting device includes a light emitting element 33 such as a semiconductor laser for emitting light for forming an optical beam LB, and a light receiving element 35 such as a photodiode for receiving light emitted from the light emitting element. The liquid ejection failure detecting device is installed so that the optical beam collides with liquid drops such as ink drops falling in an ink drop ejecting direction (a), and detects the liquid drop ejection failure from the output change of the light receiving element that receives light after collision. Such a liquid ejection failure detecting device includes a control means 40 for monitoring the output value of the light receiving element 35 when liquid drops are not ejected, and when the output value is less than a fixed value, a correction is made to return the output value to the normal value.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种防止由于雾粘附到光学系统而导致的液体喷射故障的错误检测的液体喷射故障检测装置，以及设置有这种液体喷射故障检测装置的喷墨记录装置。解决方案：液体喷射故障检测装置包括诸如用于发射用于形成光束LB的光的半导体激光器等发光元件33和用于接收从发光的光发射的光的光电二极管等光接收元件35 元件。液体喷射故障检测装置被安装成使得光束与液滴（例如落在墨滴喷射方向（a）中的墨滴）相撞，并且从接收到的光接收元件的输出变化来检测液滴喷射故障碰撞后光。这种液体喷射故障检测装置包括控制装置40，用于当不喷射液滴时监视光接收元件35的输出值，并且当输出值小于固定值时，进行校正以返回输出值到正常值。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2009298000A Device for detectng inferior discharge of liquid and inkjet recorder , and inkjet recorder 审中-公开
标题翻译：用于液体和喷墨记录仪的检测无菌放出的装置和喷墨记录器
公开(公告)号：JP2009298000A
公开(公告)日：2009-12-24
申请号：JP2008154347
申请日：2008-06-12
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： HAYASHI HIRONAO , ITO KAZUMASA
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To provide a device which prevents misdetection of inferior discharge of liquid due to floating of mist, and to provide an inkjet recorder equipped with the device for detecting inferior discharge of liquid.
SOLUTION: The device 20 for detecting inferior discharge of liquid which is equipped with a light emitting element such as a semiconductor laser which emits a light that forms a light beam LB, and a light receiving element such as a photodiode which receives the light emitted by the light emitting element. The device 20 is set so that the light beam can collide against a liquid droplet such as a flying ink droplet 32. Poor ejection of the liquid droplet is detected from an output change of the light receiving element which receives the light after the collision. A mist electrostatic attraction means 45 comprised of an electrode 43 set to be located in the periphery of a fly direction (a) of the liquid droplet, and a power source 44 which applies a voltage to the electrode is installed in the device.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种防止由于雾的漂浮而导致液体劣化检测的装置，并且提供一种装备有用于检测液体不良排出的装置的喷墨记录器。解决方案：用于检测配备有发射形成光束LB的光的半导体激光器等发光元件的液体的劣化装置20以及光电二极管等光接收元件，由发光元件发射的光。设备20被设置为使得光束可以与诸如飞溅墨滴32的液滴碰撞。从碰撞之后接收光的光接收元件的输出变化检测出液滴的不良喷射。由设置在液滴的飞行方向（a）周边的电极43构成的雾状静电吸引装置45，向该电极施加电压的电源44。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2009113225A Device for detecting liquid discharge failure and inkjet recorder 审中-公开
标题翻译：用于检测液体排放故障和喷墨记录仪的装置
公开(公告)号：JP2009113225A
公开(公告)日：2009-05-28
申请号：JP2007285722
申请日：2007-11-02
申请人： Ricoh Elemex Corp , リコーエレメックス株式会社
发明人： HAYASHI HIRONAO , ITO KAZUMASA
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To much more surely detect a liquid droplet discharge failure by increasing received light quantity in a light receiving part and defining a difference of the received light quantity between when an ink droplet exists and when it does not exist without requiring troublesome adjustment nor securing advanced positional accuracy.
SOLUTION: A light beam 31 is emitted from a light emitting part equipped with a light emitting element or the like, the light receiving part B equipped with a light receiving element or the like is arranged at a position deviated from the optical axis 35 of the light beam, and scattering light beam S generated when the light beam collides with the ink droplet (liquid droplet) 36B is received by the light receiving part, then liquid discharge failure such as non-discharge or bending is detected from data on the received light. The device for detecting liquid discharge failure thus constituted includes a reflection member (optical component) 40 for guiding the scattering light beams S5, S7, S9 and S11 which do not directly enter the light receiving part to the light receiving part.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过增加光接收部分中的接收光量来确定地检测液滴放电故障，并且限定当墨滴存在时和当不存在墨滴时的接收光量的差异而没有需要麻烦的调整或确保高级的位置精度。解决方案：从配备有发光元件等的发光部分发射光束31，配备有光接收元件等的光接收部分B布置在偏离光轴的位置当光束与墨滴（液滴）36B碰撞时产生的散射光束S被光接收部分接收，然后从数据上检测出诸如不放电或弯曲的液体排出故障收到的光。用于检测由此构成的液体排出故障的装置包括用于将不直接进入光接收部分的散射光束S5，S7，S9和S11引导到光接收部分的反射部件（光学部件）40。版权所有（C）2009，JPO＆INPIT

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