公开(公告)号：US07841682B2

公开(公告)日：2010-11-30

申请号：US12354278

申请日：2009-01-15

申请人： Mamoru Yorimoto ,  Kenichi Kawabata ,  Takayuki Niihara ,  Shinichiro Naruse ,  Tetsu Morino ,  Takumi Hagiwara

发明人： Mamoru Yorimoto ,  Kenichi Kawabata ,  Takayuki Niihara ,  Shinichiro Naruse ,  Tetsu Morino ,  Takumi Hagiwara

IPC分类号： B41J2/01

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

摘要： An image forming apparatus includes a carriage carrying a recording head configured to discharge a droplet. A landing position error detecting pattern is formed on a pattern forming member. Based on a result of reading the landing position error detecting pattern, a landing position error of the droplet discharged by the recording head is corrected. Either a first pattern or a second pattern is selected as the landing position error detecting pattern, depending on a surface condition of the pattern forming member. The first pattern produces a relatively small amount of specular reflection compared with diffused reflection, while the second pattern produces a relatively large amount of specular reflection compared with diffused reflection, upon irradiation with light.

摘要翻译： 图像形成装置包括承载配置为排出液滴的记录头的托架。 着陆位置误差检测图案形成在图案形成部件上。 基于读取着陆位置误差检测图案的结果，校正由记录头排出的液滴的着陆位置误差。 根据图案形成构件的表面状况，选择第一图案或第二图案作为着陆位置误差检测图案。 与扩散反射相比，第一图案产生相对较少量的镜面反射，而与光扩散相比，第二图案与漫反射相比产生相对大量的镜面反射。

公开(公告)号：US20090148181A1

公开(公告)日：2009-06-11

申请号：US12326607

申请日：2008-12-02

申请人： Takayuki NIIHARA ,  Kenichi Kawabata ,  Shinichiro Naruse ,  Mamoru Yorimoto ,  Takumi Hagiwara ,  Tetsu Morino

发明人： Takayuki NIIHARA ,  Kenichi Kawabata ,  Shinichiro Naruse ,  Mamoru Yorimoto ,  Takumi Hagiwara ,  Tetsu Morino

IPC分类号： G03G21/16

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

摘要： A side wall surface of a carriage is disclosed with two first projection parts and a second projection part that define the inclination of a reflective optical sensor in its vertical direction. The two first projection parts are arranged at the same height position with a detection surface as a reference, and the second projection part is arranged at a position higher than the first projection parts with the detection surface as the reference. The second projection part has a first part higher in position from the side wall surface of the carriage than the first projection parts and has a second part lower in position than the first part. The second part has a screw hole into which a clamping member for fixing the reflective optical sensor to the second part is tightened.

摘要翻译： 公开了一种滑架的侧壁表面，其具有两个第一突出部分和限定反射光学传感器在其垂直方向上的倾斜度的第二突出部分。 两个第一突出部以与检测面为基准配置在相同的高度位置，以检测面为基准，第二突出部配置在高于第一突出部的位置，检测面为基准。 第二突出部分具有比第一突出部分从托架的侧壁表面更高的第一部分，并且具有比第一部分更低的位置的第二部分。 第二部分具有螺钉孔，用于将反射光学传感器固定到第二部分的夹紧构件被紧固到其中。

公开(公告)号：US07854489B2

公开(公告)日：2010-12-21

申请号：US12355176

申请日：2009-01-16

申请人： Takumi Hagiwara ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Takayuki Niihara ,  Shinichiro Naruse ,  Tetsu Morino

发明人： Takumi Hagiwara ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Takayuki Niihara ,  Shinichiro Naruse ,  Tetsu Morino

IPC分类号： B41J2/01

CPC分类号： B41J29/393

摘要： A disclosed image forming apparatus includes a carriage having a head for jetting droplets; a pattern forming unit configured to form, on a belt, a pattern used for detecting displacement of landing positions of the droplets; a reading unit configured to scan the belt before the pattern formation to output a first result, and scan the pattern to output a second result; a correcting unit configured to correct the displacement based on the second result; a frequency analyzing unit configured to calculate frequencies of the belt and amplitudes of respective frequency components based on the first result; and a peak frequency calculating unit configured to calculate peak frequencies of the belt based on the frequencies of the belt and the amplitudes of the frequency components, the peak frequencies being frequency components whose amplitude exceeds a predetermined level. The pattern is formed at a frequency different from the peak frequencies.

摘要翻译： 公开的图像形成装置包括具有用于喷射液滴的头部的滑架; 图案形成单元，其构造成在带上形成用于检测液滴的着陆位置的位移的图案; 读取单元，被配置为在图案形成之前扫描所述带以输出第一结果，并且扫描所述图案以输出第二结果; 校正单元，被配置为基于所述第二结果校正所述位移; 频率分析单元，被配置为基于所述第一结果计算所述带的频率和各个频率分量的振幅; 以及峰值频率计算单元，被配置为基于所述带的频率和频率分量的振幅计算所述带的峰值频率，所述峰值频率是振幅超过预定水平的频率分量。 该图案以与峰值频率不同的频率形成。

公开(公告)号：US20090189937A1

公开(公告)日：2009-07-30

申请号：US12359450

申请日：2009-01-26

申请人： Shinichiro Naruse ,  Kenichi Kawabata ,  Takayuki Niihara ,  Mamoru Yorimoto ,  Tetsu Morino ,  Takumi Hagiwara

发明人： Shinichiro Naruse ,  Kenichi Kawabata ,  Takayuki Niihara ,  Mamoru Yorimoto ,  Tetsu Morino ,  Takumi Hagiwara

IPC分类号： B41J29/38

CPC分类号： B41J29/393 ,  B41J29/38

摘要： A disclosed image forming apparatus includes a carriage on which a recording head is mounted that has a nozzle array where plural nozzles for ejecting droplets are arranged, the carriage being configured to be moved in a direction orthogonal to a nozzle arrangement direction; a transport belt facing the recording head and configured to transport a sheet; a print pattern forming unit configured to form a print pattern on the transport belt by causing at least the nozzles at opposing ends of the nozzle array to eject the droplets onto the transport belt while stopping the carriage; a reading unit configured to read the print pattern; a measuring unit configured to measure print positions of plural points of the print pattern in a direction orthogonal to the nozzle arrangement direction; and a detecting unit configured to detect an inclination of the recording head.

摘要翻译： 公开的图像形成装置包括：滑架，安装有记录头的滑架，该记录头具有喷嘴阵列，喷嘴阵列布置有多个用于喷射液滴的喷嘴;滑架构造成沿与喷嘴布置方向正交的方向移动; 面向记录头并被配置为运送片材的传送带; 打印图案形成单元，被配置为通过使喷嘴阵列的相对端处的至少喷嘴至少在停止滑架时将液滴喷射到传送带上而在传送带上形成打印图案; 读取单元，被配置为读取所述打印图案; 测量单元，被配置为测量与喷嘴布置方向正交的方向上的打印图案的多个点的打印位置; 以及检测单元，被配置为检测记录头的倾斜度。

公开(公告)号：US08042904B2

公开(公告)日：2011-10-25

申请号：US12326607

申请日：2008-12-02

申请人： Takayuki Niihara ,  Kenichi Kawabata ,  Shinichiro Naruse ,  Mamoru Yorimoto ,  Takumi Hagiwara ,  Tetsu Morino

发明人： Takayuki Niihara ,  Kenichi Kawabata ,  Shinichiro Naruse ,  Mamoru Yorimoto ,  Takumi Hagiwara ,  Tetsu Morino

IPC分类号： B41J29/393

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

摘要： A side wall surface of a carriage is disclosed with two first projection parts and a second projection part that define the inclination of a reflective optical sensor in its vertical direction. The two first projection parts are arranged at the same height position with a detection surface as a reference, and the second projection part is arranged at a position higher than the first projection parts with the detection surface as the reference. The second projection part has a first part higher in position from the side wall surface of the carriage than the first projection parts and has a second part lower in position than the first part. The second part has a screw hole into which a clamping member for fixing the reflective optical sensor to the second part is tightened.

摘要翻译： 公开了一种滑架的侧壁表面，其具有两个第一突出部分和限定反射光学传感器在其垂直方向上的倾斜度的第二突出部分。 两个第一突出部以与检测面为基准配置在相同的高度位置，以检测面为基准，第二突出部配置在高于第一突出部的位置，以检测面为基准。 第二突出部分具有比第一突出部分从托架的侧壁表面更高的第一部分，并且具有比第一部分更低的位置的第二部分。 第二部分具有螺钉孔，用于将反射光学传感器固定到第二部分的夹紧构件被紧固到其中。

公开(公告)号：US08157342B2

公开(公告)日：2012-04-17

申请号：US12047973

申请日：2008-03-13

申请人： Tetsu Morino ,  Noboru Sawayama ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsuro Hirota ,  Takumi Hagiwara ,  Masatoshi Sakakitani

发明人： Tetsu Morino ,  Noboru Sawayama ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsuro Hirota ,  Takumi Hagiwara ,  Masatoshi Sakakitani

IPC分类号： B41J29/38

CPC分类号： B41J2/2135 ,  B41J19/207

摘要： A disclosed liquid-jet device includes a liquid-jet head configured to jet liquid droplets; a pattern formation control unit configured to control the liquid-jet head and thereby to form a test pattern composed of separate liquid droplets on a water-repellent part; a detecting unit including a light-emitting element configured to illuminate the test pattern on the water-repellent part and a light-receiving element configured to receive specularly reflected light from the illuminated test pattern and to output a detection signal proportional to the received specularly reflected light; and a landing position adjusting unit configured to adjust landing positions of the liquid droplets based on the detection signal from the light-receiving element.

摘要翻译： 所公开的液体喷射装置包括构造成喷射液滴的液体喷射头; 图案形成控制单元，被配置为控制喷液头，从而在防水部件上形成由分离的液滴组成的测试图案; 检测单元，其包括被配置为照亮所述防水部件上的测试图案的发光元件和被配置为从所述被照亮测试图案接收镜面反射光并且输出与所接收的镜面反射的成比例的检测信号的光接收元件 光; 以及着陆位置调整单元，其被配置为基于来自所述光接收元件的检测信号来调节所述液滴的着陆位置。

公开(公告)号：US20090015621A1

公开(公告)日：2009-01-15

申请号：US12164377

申请日：2008-06-30

申请人： Tetsuro Hirota ,  Takumi Hagiwara ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsu Morino ,  Noboru Sawayama

发明人： Tetsuro Hirota ,  Takumi Hagiwara ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsu Morino ,  Noboru Sawayama

IPC分类号： B41J29/393

CPC分类号： B41J29/393 ,  B41J2/2142 ,  B41J19/207 ,  B41J29/38

摘要： An image forming apparatus includes a recording head, a water-repellent transfer belt, a pattern formation controller, a read unit, and a detection unit. The recording head has a plurality of nozzles aligned in a given direction, and ejects droplets of a liquid therefrom. The pattern formation controller directs each of the plurality of nozzles to eject the liquid to form a detection pattern on the transfer belt. The detection pattern has multiple droplets ejected from each of the plurality of nozzles sequentially arranged and spaced apart from each other both in the given direction and in a direction orthogonal to the given direction. The read unit includes a light emitting element and a light receiving element, and reads the detection pattern to output a read result. The detection unit detects a defective nozzle according to the read result.

摘要翻译： 图像形成装置包括记录头，防水转印带，图案形成控制器，读取单元和检测单元。 记录头具有沿给定方向排列的多个喷嘴，并从其喷出液滴。 图案形成控制器引导多个喷嘴中的每一个喷射液体以在转印带上形成检测图案。 检测图案具有从给定方向和与给定方向正交的方向上顺序排列和间隔开的多个喷嘴中的每一个排出的多个液滴。 读取单元包括发光元件和光接收元件，并且读取检测图案以输出读取结果。 检测单元根据读取结果来检测有缺陷的喷嘴。

公开(公告)号：US20080231649A1

公开(公告)日：2008-09-25

申请号：US12048729

申请日：2008-03-14

申请人： Kenichi KAWABATA ,  Noboru Sawayama ,  Tetsuro Hirota ,  Mamoru Yorimoto ,  Tetsu Morino ,  Takumi Hagiwara

发明人： Kenichi KAWABATA ,  Noboru Sawayama ,  Tetsuro Hirota ,  Mamoru Yorimoto ,  Tetsu Morino ,  Takumi Hagiwara

IPC分类号： B41J29/38 ,  B41J29/393

CPC分类号： B41J29/38 ,  B41J2/17509 ,  B41J19/207 ,  B41J29/393

摘要： A disclosed image forming apparatus for forming an image on a recording medium being conveyed includes: a recording head discharging droplets; a pattern forming unit forming an adjustment pattern for detecting displacement of landing positions of droplets on a water-repellent member, the adjustment pattern including a minimum block pattern for each detection item and being formed with plural droplets independent of one another; a reading unit including a light emitting unit projecting a light onto the adjustment pattern and a light receiving unit receiving a regular reflection light from the adjustment pattern; and a landing position correcting unit correcting the landing positions of the droplets discharged from the recording head based on a result of reading by the reading unit.

摘要翻译： 公开的用于在被传送的记录介质上形成图像的图像形成装置包括：排出液滴的记录头; 图案形成单元，其形成用于检测防水构件上的液滴的着陆位置的位移的调整图案，所述调整图案包括用于每个检测项目的最小块图案，并且彼此独立地形成有多个液滴; 读取单元，包括将光投射到调整图案上的发光单元和从调节图案接收正常反射光的光接收单元; 以及着陆位置校正单元，其基于读取单元的读取结果来校正从记录头排出的液滴的着陆位置。

公开(公告)号：US08066348B2

公开(公告)日：2011-11-29

申请号：US12164377

申请日：2008-06-30

申请人： Tetsuro Hirota ,  Takumi Hagiwara ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsu Morino ,  Noboru Sawayama

发明人： Tetsuro Hirota ,  Takumi Hagiwara ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsu Morino ,  Noboru Sawayama

IPC分类号： B41J2/01

CPC分类号： B41J29/393 ,  B41J2/2142 ,  B41J19/207 ,  B41J29/38

摘要： An image forming apparatus includes a recording head, a water-repellent transfer belt, a pattern formation controller, a read unit, and a detection unit. The recording head has a plurality of nozzles aligned in a given direction, and ejects droplets of a liquid therefrom. The pattern formation controller directs each of the plurality of nozzles to eject the liquid to form a detection pattern on the transfer belt. The detection pattern has multiple droplets ejected from each of the plurality of nozzles sequentially arranged and spaced apart from each other both in the given direction and in a direction orthogonal to the given direction. The read unit includes a light emitting element and a light receiving element, and reads the detection pattern to output a read result. The detection unit detects a defective nozzle according to the read result.

摘要翻译： 图像形成装置包括记录头，防水转印带，图案形成控制器，读取单元和检测单元。 记录头具有沿给定方向排列的多个喷嘴，并从其喷出液滴。 图案形成控制器引导多个喷嘴中的每一个喷射液体以在转印带上形成检测图案。 检测图案具有从给定方向和与给定方向正交的方向上顺序排列和间隔开的多个喷嘴中的每一个排出的多个液滴。 读取单元包括发光元件和光接收元件，并且读取检测图案以输出读取结果。 检测单元根据读取结果来检测有缺陷的喷嘴。

公开(公告)号：US08186799B2

公开(公告)日：2012-05-29

申请号：US12047949

申请日：2008-03-13

申请人： Tetsu Morino ,  Noboru Sawayama ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsuro Hirota ,  Takumi Hagiwara

发明人： Tetsu Morino ,  Noboru Sawayama ,  Kenichi Kawabata ,  Mamoru Yorimoto ,  Tetsuro Hirota ,  Takumi Hagiwara

IPC分类号： B41J29/393

CPC分类号： B41J29/393 ,  B41J19/207 ,  B41J29/38

摘要： An image forming apparatus is provided with a carriage in which recording heads having nozzles for ejecting liquid droplets are mounted and is configured to form an image on a recording medium being transported. The image forming apparatus includes a pattern forming unit that forms an impact position displacement adjustment pattern formed of plural independent liquid droplets on a water repellent member; a reading unit that includes a light emitting unit for emitting light onto the adjustment pattern and a light receiving unit for receiving specular reflection light from the adjustment pattern; and an impact position correcting unit that corrects an impact position of a liquid droplet to be ejected from the recording head based on a read result by the reading unit. The reading unit is disposed on the carriage and is arranged close to the side of a guide member that guides movement of the carriage.

摘要翻译： 图像形成装置设置有滑架，其中安装有用于喷射液滴的喷嘴的记录头，并且被配置为在被传送的记录介质上形成图像。 图像形成装置包括图案形成单元，其在防水构件上形成由多个独立液滴形成的冲击位置位移调节图案; 读取单元，其包括用于将光发射到调整图案上的发光单元和用于从调整图案接收镜面反射光的光接收单元; 以及冲击位置校正单元，其基于读取单元的读取结果来校正要从记录头喷射的液滴的冲击位置。 读取单元设置在滑架上并且布置成靠近引导滑架的运动的引导构件的侧面。