公开(公告)号：JP2011102157A

公开(公告)日：2011-05-26

申请号：JP2009256720

申请日：2009-11-10

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： HAGIWARA TAKUMI

IPC分类号： B65H29/20

摘要： PROBLEM TO BE SOLVED: To provide a paper delivery apparatus and an image forming apparatus including the paper delivery apparatus carrying out optimum stiffening for the size and thickness of paper with simple configuration.
SOLUTION: The paper delivery apparatus equipped to the image forming apparatus includes a paper delivery roller 81 delivering paper after image formation; stiffening members 83a, 83b stiffening the paper; stiffening member moving means 84a, 84b moving at least a pair of stiffening members in a line symmetry in a main scanning direction orthogonal to a paper conveying direction and parallel with the axial direction of the paper delivery roller 81; and a paper information acquiring means acquiring paper information. The paper delivery apparatus further includes a position change control means changing the moving positions of the stiffening members according to the acquisition result of the paper information acquiring means, thereby carrying out stiffening in optimal positions to various paper sizes and thickness with simple the configuration.
COPYRIGHT: (C)2011,JPO&INPIT

摘要翻译： 要解决的问题：提供一种纸张输送装置和图像形成装置，其包括以简单的构造对纸的尺寸和厚度进行最佳加强的纸张输送装置。 解决方案：配备到图像形成装置的送纸装置包括在图像形成之后输送纸张的送纸辊81; 加强构件83a，83b加强纸张; 加强构件移动装置84a，84b使至少一对加强构件在与纸张传送方向垂直的主扫描方向上线对称并且与纸张输送辊81的轴向平行地移动; 纸信息获取装置获取纸信息。 送纸装置还包括位置变更控制装置，根据纸张信息获取装置的获取结果改变加强件的移动位置，从而以简单的结构在最佳位置上进行各种纸张尺寸和厚度的加强。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009297968A

公开(公告)日：2009-12-24

申请号：JP2008153426

申请日：2008-06-11

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： HAGIWARA TAKUMI ,  KAWABATA KENICHI ,  YORIMOTO MAMORU ,  NARUSE SHINICHIRO

IPC分类号： B41J2/01

摘要： PROBLEM TO BE SOLVED: To solve the problem that even when the ink temperature does not follow a change in environmental temperature, as a correction for deviation of a striking position is performed, a useless correcting operation is performed and a useless consumption of the ink and down time of an apparatus are generated.
SOLUTION: When an adjusting pattern 400 for detecting the deviation of a striking position is formed on a conveying belt 31, and is read by a pattern reading sensor 401 carried on a carriage 23, and based on the reading result, the correcting operation for correcting the deviation of the striking position of liquid droplets from a recording head 24 is performed, if a difference between the environmental temperature detected by a first temperature detecting means 801 and the ink temperature detected by a second temperature detecting means 802 is not larger than a first specified value, the correcting operation is executed, but the difference exceeds the first specified value, no correcting operation is performed.
COPYRIGHT: (C)2010,JPO&INPIT

摘要翻译： 要解决的问题为了解决即使当油墨温度不跟随环境温度的变化的问题时，作为对打击位置的偏差的校正，执行无用的校正操作，并且执行无用的校正操作 产生装置的墨水和停机时间。 解决方案：当用于检测打击位置的偏差的调整图案400形成在输送带31上，并且由承载在托架23上的图案读取传感器401读取时，并且基于读取结果，校正 如果由第一温度检测装置801检测到的环境温度与由第二温度检测装置802检测到的墨水温度之间的差异不大，则执行用于校正液滴从记录头24的打击位置的偏差的操作 超过第一指定值，执行校正操作，但是差超过第一指定值，则不执行校正操作。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009166438A

公开(公告)日：2009-07-30

申请号：JP2008009801

申请日：2008-01-18

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： MORINO SATORU ,  HAGIWARA TAKUMI ,  NARUSE SHINICHIRO ,  NIIHARA TAKAYUKI ,  KAWABATA KENICHI ,  YORIMOTO MAMORU

IPC分类号： B41J2/165 ,  B41J2/18 ,  B41J2/185

摘要： PROBLEM TO BE SOLVED: To provide an image formation device capable of exactly detecting a deposition of ink and existence of a bubble in a cap member of a maintenance and recovery mechanism and a trial jet receptacle.
SOLUTION: The image formation device has a recording head jetting a liquid drop, a carriage with the recording head, an optical sensor mounted on the carriage, the maintenance and recovery mechanism containing a cap member by which a nozzle surface of the recording head is capped and maintaining and recovering the state of the recording head, and a means of detecting a change of the shape of the cap member by comparing an amount of returned reflected light in case of irradiating irradiation light to the cap member of the maintenance and recovery mechanism with a preliminarily held initial return amount by a sensor by scanning the carriage.
COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：提供一种能够精确地检测墨水的沉积和在维护和恢复机构的盖部件中的气泡的存在以及试验喷射容器的图像形成装置。 解决方案：图像形成装置具有喷射液滴的记录头，具有记录头的滑架，安装在滑架上的光学传感器，维护和恢复机构包含盖构件，通过该盖构件，记录的喷嘴表面 头部被盖住并保持和恢复记录头的状态，以及一种通过比较在将照射光照射到维护的盖构件的情况下将返回的反射光的量进行比较来检测盖构件的形状的装置的装置，以及 通过扫描托架通过传感器预先保持初始返回量的恢复机构。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009166398A

公开(公告)日：2009-07-30

申请号：JP2008008458

申请日：2008-01-17

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： YORIMOTO MAMORU ,  KAWABATA KENICHI ,  NIIHARA TAKAYUKI ,  NARUSE SHINICHIRO ,  MORINO SATORU ,  HAGIWARA TAKUMI

IPC分类号： B41J2/01

CPC分类号： B41J2/2142 ,  B41J29/38 ,  B41J29/393

摘要： PROBLEM TO BE SOLVED: To solve the problem of the impossible execution of the highly accurate correction of the slippage of impact positions due to the lowering of the reading accuracy of a pattern by the change of surface conditions under the state that the impact position correcting pattern is formed on a conveying belt.
SOLUTION: In the pre-scanning of the pattern forming positions of the conveying belt 31 with a reading sensor 401, when the output of the sensor is higher than its threshold value, the pattern forming position is determined to be in a regularly reflected ray region, in which regularly reflected ray becomes higher than diffusingly reflected ray and an adjusting pattern 400 to form is set to be a first adjusting pattern 1401, in which the regularly reflected ray becomes lower than the diffusingly reflected ray, while when the output of the sensor is lower than its threshold value, the pattern forming position is determined to be in a diffusingly reflected ray region, in which the regularly reflected ray becomes lower than the diffusingly reflected ray and an adjusting pattern 400 to form is set to be a second adjusting pattern 1402, in which the regularly reflected ray becomes higher than the diffusingly reflected ray so as to form the set adjusting pattern 400 in order to read the pattern 400 with the reading sensor 401. The correction of the slippage of impact positions by correcting a droplet discharging timing or the like is executed in response to the read result.
COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：为了解决由于冲击位置的滑动的高精度校正而导致的不可能执行的问题，即由于在影响的状态下由于表面状况的改变而降低了图案的读取精度 位置校正图案形成在输送带上。 解决方案：在用读取传感器401对传送带31的图案形成位置的预扫描中，当传感器的输出高于其阈值时，图案形成位置被确定为规则 其中规则反射光线变得高于扩散反射光线并且形成的调整图案400的反射射线区域被设置为其中规则反射光线变得低于扩散反射光线的第一调整图案1401，而当输出 传感器的阈值低于其阈值时，图案形成位置被确定为扩散反射的射线区域，其中规则反射光线变得低于扩散反射射线，并且将形成的调整图案400设定为 第二调整图案1402，其中规则反射光线变得高于扩散反射光线，以便形成设定​​调整图案400，以便读取pa 读取传感器401通过校正液滴喷射定时等对冲击位置的滑动进行校正，以响应读取结果执行。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009066902A

公开(公告)日：2009-04-02

申请号：JP2007237578

申请日：2007-09-13

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： NIIHARA TAKAYUKI ,  KAWABATA KENICHI ,  YORIMOTO MAMORU ,  MORINO SATORU ,  NARUSE SHINICHIRO ,  HAGIWARA TAKUMI

IPC分类号： B41J2/01

摘要： PROBLEM TO BE SOLVED: To solve a problem such as the impossibility of easy and highly accurate detection of the deviation of a gap between the nozzle surface of a recording head and a carrying surface.
SOLUTION: After a reference pattern 400a is formed on a conveyor belt 31 by delivering ink droplets 500 from the recording head 24 under the state that a carriage 23 is stopped at a predetermined position, while travelling the carriage 23, a pattern to be measured 400b is formed on the conveyor belt 31 by delivering the ink droplets 500 from the recording head so as to lay it on the top of the reference pattern 400a to read the respective patterns 400a and 400b with a pattern reading sensor 401 in order to calculate the deviation of the gap between the nozzle surface of the recording head 24 and the surface of the conveyor belt 31 from the amount of slur between the two patterns.
COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：解决难以容易且高度准确地检测记录头的喷嘴表面与承载表面之间的间隙的偏差的问题。 解决方案：在通过在托架23停止在预定位置的状态下从记录头24输送墨滴500而在传送带31上形成参考图案400a之后，在将滑架23移动到 通过从记录头输送墨滴500而将其测量400b形成在传送带31上，以便将其放置在参考图案400a的顶部上，以用图案读取传感器401读取各个图案400a和400b，以便 计算记录头24的喷嘴表面和传送带31的表面之间的间隙与两种图案之间的沾污量的偏差。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2006001162A

公开(公告)日：2006-01-05

申请号：JP2004180744

申请日：2004-06-18

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： HAGIWARA TAKUMI ,  MURATA KAZUYA ,  ICHINOSE HIROKI

IPC分类号： B41J2/01 ,  H04N1/04 ,  H04N1/23

摘要： PROBLEM TO BE SOLVED: To provide an image recorder that can maintain the running cost without lowering the productivity and can control forming of an image by readily and precisely detecting a defective ejection nozzle without bothering a user.
SOLUTION: This image recorder 30A comprises a memory medium 20 for storing input image data, an image forming means for forming an image on a recording medium 2 by ejecting ink from a recording head 1 according to the image data, and an image reading section 5 for reading the output image formed on the recording medium 2. The image recorder 30A further comprises an image evaluating section 24 for comparing input image data stored in the memory medium 20 with an output image data read by the image reading section 5 and a control section 6 for controlling the recording head 1 based on the output of the image evaluating section 24.
COPYRIGHT: (C)2006,JPO&NCIPI

摘要翻译： 要解决的问题：提供一种能够在不降低生产率的情况下保持运行成本的图像记录器，并且可以通过容易且精确地检测有缺陷的喷嘴而不影响用户来控制图像的形成。 解决方案：该图像记录器30A包括用于存储输入图像数据的存储介质20，用于根据图像数据从记录头1喷射墨在记录介质2上形成图像的图像形成装置，以及图像 读取部分5，用于读取形成在记录介质2上的输出图像。图像记录器30A还包括图像评估部分24，用于将存储在存储介质20中的输入图像数据与由图像读取部分5读取的输出图像数据进行比较;以及 控制部分6，用于基于图像评估部分24的输出来控制记录头1.（C）版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2012020872A

公开(公告)日：2012-02-02

申请号：JP2010162077

申请日：2010-07-16

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： HAGIWARA TAKUMI

IPC分类号： B65H37/06

摘要： PROBLEM TO BE SOLVED: To provide an apparatus for folding a paper sheet the productivity of which can be improved.SOLUTION: The apparatus for folding the paper sheet includes: a blade member by the tip of which the surface of the paper sheet is pressed to push the pressed paper sheet into a paper sheet folding part by which the paper sheet is folded; and a pair of clamping members which are arranged in the paper sheet folding part and used for clamping the paper sheet pushed into the paper sheet folding part by the blade member. The paper sheet is clamped and folded by the pair of clamping members. The apparatus for folding the paper sheet further includes a control means for controlling the pair of clamping members so that the paper sheet can be clamped between the pair of clamping members while changing a clamping position according to a direction that the paper sheet is pushed by the blade member, namely, so that the clamping position may be moved to the same direction as the direction that the paper sheet is pushed by the blade member or the clamping position may be moved to a direction opposite to the direction that the paper sheet is pushed by the blade member.

摘要翻译： 要解决的问题：提供一种用于折叠纸张的设备，其生产率可以提高。 解决方案：用于折叠纸张的装置包括：叶片构件，其顶部将纸张的表面按压以将压制的纸张推入纸张折叠部分，纸张折叠部分通过该纸张折叠部分折叠; 以及一对夹持构件，其布置在纸张折叠部分中，并用于通过刀片构件夹紧被推入纸张折叠部分的纸张。 纸张由一对夹紧构件夹紧和折叠。 用于折叠纸张的装置还包括控制装置，用于控制一对夹紧构件，使得纸张可以在根据纸张被推动的方向改变夹紧位置的同时夹持在一对夹持构件之间 即，使得夹持位置可以沿与纸张被叶片构件推动的方向相同的方向移动，或者夹持位置可以移动到与纸张被推动的方向相反的方向 由叶片构件。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010188532A

公开(公告)日：2010-09-02

申请号：JP2009032257

申请日：2009-02-16

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： HAGIWARA TAKUMI

IPC分类号： B41J2/01 ,  B41J29/38

摘要： PROBLEM TO BE SOLVED: To avoid the trouble that printing-out is interrupted by an encoder signal error generated because of an encoder life at an unexpected timing, leading to a downtime from generation of the error to replacement of the encoder.
SOLUTION: The light amount of a light source is reduced to a detection limit where an output pulse of the optical encoder is missed at a check time point, and a critical light amount is obtained (S105). An integrated use amount of ink at the time is calculated (S106) and stored in pairs in a storage medium. A curve showing a relationship between the critical light amount and the ink integrated use amount is approximated from a history of these amounts stored in pairs at each check time point (S109). An expectancy of how much can be used until the currently obtained critical light amount reaches a light amount of a preliminarily set life is expressed by the integrated amount of ink on the basis of the obtained estimation life function.
COPYRIGHT: (C)2010,JPO&INPIT

摘要翻译： 要解决的问题：为了避免由于在意外时间的编码器寿命而产生的编码器信号错误而导致打印错误的故障，导致由错误的产生到编码器更换的停机时间。 解决方案：光源的光量被降低到在检查时间点错过光学编码器的输出脉冲并且获得临界光量的检测限（S105）。 计算此时的墨水的一体化使用量（S106），并成对存储在存储介质中。 表示临界光量与墨水一体化使用量之间的关系的曲线是从每个检查时间点成对存储的这些量的历史近似的（S109）。 基于获得的估计寿命函数，可以通过基于所获得的估计寿命函数的积分量来表示当前获得的临界光量达到预设寿命的光量之前可以使用多少的预期。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009166413A

公开(公告)日：2009-07-30

申请号：JP2008008849

申请日：2008-01-18

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： HAGIWARA TAKUMI ,  KAWABATA KENICHI ,  YORIMOTO MAMORU ,  NIIHARA TAKAYUKI ,  NARUSE SHINICHIRO ,  MORINO SATORU

IPC分类号： B41J2/01 ,  B05C5/00

CPC分类号： B41J29/393

摘要： PROBLEM TO BE SOLVED: To solve the problems of failing to detect a precise position of a pattern and to correct misalignment of a landing position of liquid droplets when the frequency component occurring from scratches caused by paper dust present on a belt surface or from smudge caused by ink mist and a frequency component of a pattern become the same in a cases of forming a pattern on a conveyor belt for use in detecting displacement of landing positions of liquid droplets.
SOLUTION: An image forming apparatus performs a frequency analysis by calculating the frequency of the belt surface and the amplitude of the respective frequency components based on the result of reading at the time of scanning on the conveyor belt 31 by means of a reading sensor before a pattern 400 is printed, calculates only the frequency component exceeding a predetermined level as a peak frequency, with respect to the belt surface frequency components and the amplitude of the respective frequency components obtained, forms the frequency pattern 400 different from the peak frequency of the surface of the conveyor belt, reads the pattern 400 by means of the reading sensor 401 and corrects the displacement of landing positions of liquid droplets from the recording head 24 on the basis of the reading result.
COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：为了解决当由于皮带表面上存在的纸屑引起的划痕而产生的频率成分时，解决不能检测图案的精确位置和校正液滴的着陆位置的不对准性的问题，或者 在用于检测液滴的着陆位置的位移的传送带上形成图案的情况下，由墨雾引起的污迹和图案的频率分量变得相同。 解决方案：图像形成装置通过基于在传送带31上的读取时的读取结果借助于读取来计算带表面的频率和各个频率分量的振幅来执行频率分析 传感器在打印图案400之前，仅计算超过预定水平的频率分量作为峰值频率，相对于所获得的带表面频率分量和各个频率分量的幅度，形成与峰值频率不同的频率图案400 通过读取传感器401读取图案400，并且基于读取结果校正液滴从记录头24的着陆位置的位移。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009137089A

公开(公告)日：2009-06-25

申请号：JP2007314179

申请日：2007-12-05

申请人： Ricoh Co Ltd ,  株式会社リコー

发明人： NIIHARA TAKAYUKI ,  KAWABATA KENICHI ,  NARUSE SHINICHIRO ,  YORIMOTO MAMORU ,  HAGIWARA TAKUMI ,  MORINO SATORU

IPC分类号： B41J19/18

CPC分类号： G03G15/5062 ,  G03G15/6591 ,  G03G2215/00468 ,  G03G2215/00527 ,  G03G2215/00974

摘要： PROBLEM TO BE SOLVED: To attach a reflection type optical sensor to a side wall face of a carriage formed of a resin by injection molding in a simple structure such that the optical sensor is inclined with respect to a direction perpendicular to a detection face of the optical sensor at an small angle. SOLUTION: Two first projections 231, 231 and one second projection 232 for defining an inclination of the reflection type optical sensor 401 in the vertical direction are provided on the side wall face 230 of the carriage 23. The first projections 231, 231 are provided at respective vertical positions having the same height from the detection face as a reference and the second projection 232 is provided at a vertical position higher than the vertical position of the first projection 231 on the basis of the detection face as a reference. The second projection 232 has a first part 232a whose height from the side wall face 230 is greater than that of the first projection 231 and a second part 232b whose height from the side wall face 230 is smaller than that of the first projection 232a. A screw hole 234 that allows a fastening member (a screw) 459 for fixing the optical sensor 401 to be threaded thereinto is provided on the second part 232b. COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：将反射型光学传感器以简单的结构通过注射成型将树脂形成的托架的侧壁面安装，使得光学传感器相对于垂直于检测的方向倾斜 光学传感器的一个小角度的面。 解决方案：在滑架23的侧壁面230上设置两个用于限定反射型光学传感器401在垂直方向上的倾斜度的第一突起231,231和一个第二突起232。第一突起231,231 设置在与作为基准的检测面相同高度的相应垂直位置处，并且基于检测面作为基准，将第二突起232设置在比第一突起231的垂直位置高的垂直位置处。 第二突起232具有从侧壁面230的高度大于第一突起231的高度的第一部分232a和其从侧壁面230的高度小于第一突起232a的高度的第二部分232b。 在第二部分232b上设置有用于固定要传入其中的光学传感器401的紧固部件（螺钉）459的螺纹孔234。 版权所有（C）2009，JPO＆INPIT