公开(公告)号：US06450615B2

公开(公告)日：2002-09-17

申请号：US09026335

申请日：1998-02-19

申请人： Ryuichi Kojima ,  Yasuhiro Otsuka ,  Torahiko Kanda ,  Fuminori Takizawa ,  Masakazu Okuda ,  Hirofumi Nakamura

发明人： Ryuichi Kojima ,  Yasuhiro Otsuka ,  Torahiko Kanda ,  Fuminori Takizawa ,  Masakazu Okuda ,  Hirofumi Nakamura

IPC分类号： B41J2135

CPC分类号： B41J2/04528 ,  B41J2/04563 ,  B41J2/04581 ,  B41J2/14274 ,  B41J2/1433 ,  B41J2202/11

摘要： Characteristics of a droplet ejection apparatus are change depending on the shape or cone angle of the main ink ejection chamber of the apparatus, or on the diameter of the ejection aperture of main ink ejection chamber. Accordingly, operation of the droplet ejection apparatus varies with the shape, angle, or diameter of main ink ejection chamber. The shape of the aperture according to the present invention is circular or regular polygonal so that surface waves are synthesized at the central portion of the ejection aperture. Moreover, the cone angle of the main chamber is set to 65° or less from the plane vertical to the droplet ejecting direction and the diameter of the ejection aperture is set to a value 1.25 times or more larger than a desired droplet diameter.

摘要翻译： 液滴喷射装置的特征根据装置的主喷墨室的形状或锥角，或主喷墨室的喷射孔的直径而变化。 因此，液滴喷射装置的操作随主喷墨室的形状，角度或直径而变化。 根据本发明的孔的形状是圆形或正多边形，使得在喷射孔的中心部分处合成表面波。 此外，主室的锥角从垂直于液滴喷射方向的平面设定为65°以下，喷射孔的直径设定为比期望的液滴直径大1.25倍以上的值。

公开(公告)号：US06196664B1

公开(公告)日：2001-03-06

申请号：US09012459

申请日：1998-01-23

申请人： Torahiko Kanda ,  Ryuichi Kojima ,  Yasuhiro Otsuka

发明人： Torahiko Kanda ,  Ryuichi Kojima ,  Yasuhiro Otsuka

IPC分类号： B41J21135

CPC分类号： B41J2/04581 ,  B41J2/04593 ,  B41J2/14274 ,  B41J2/15 ,  B41J2002/14419 ,  B41J2002/14467

摘要： An ink droplet eject apparatus comprises a plate-shaped member defining a conical ink droplet eject chamber increasing from an eject port to an opening, and a vibrating plate covering the opening. A spacer is disposed between the vibrating plate and the plate-shaped member surrounding the opening. An annular space is delimited by the spacer. An ink flow path is formed in the spacer. The vibrating plate is excited so as to generate an intermittent liquid flow of an ink W in the ink droplet eject chamber in the direction of the eject port. An actuator can arbitrarily control an amount of displacement of the vibrating plate and a generation time of displacement during the excitation.

摘要翻译： 墨滴喷射装置包括限定从喷射口增加到开口的锥形墨滴喷射室的板状部件和覆盖该开口的振动板。 间隔件设置在振动板和围绕开口的板状构件之间。 环形空间由间隔件限定。 在间隔件中形成油墨流路。 该振动板被激发，从而在喷墨口的方向产生油墨W的间歇液体流。 致动器可以任意地控制振动板的位移量和激励期间的位移产生时间。

公开(公告)号：US06328421B1

公开(公告)日：2001-12-11

申请号：US08699946

申请日：1996-08-20

申请人： Ryuichi Kojima ,  Yasuhiro Otsuka ,  Fuminori Takizawa

发明人： Ryuichi Kojima ,  Yasuhiro Otsuka ,  Fuminori Takizawa

IPC分类号： B41J2135

CPC分类号： B41J2/1404 ,  B41J2/14274 ,  B41J2002/14322 ,  B41J2002/14387

摘要： A fluid drop projecting apparatus which can fly, one by one, fluid drops far smaller than the opening bore from which the drops are projected, and moreover cay readily vary the size of the fluid drops, is provided. To this end, surface waves travelling toward a fluid drop projecting point are applied on the free surface of fluid in a fluid drop projecting chamber having an opening. The surface waves are generated by a surface wave generator including the fluid drop projecting chamber, a diaphragm and a piezo actuator. As the surface waves are generated by the surface wave generator at substantially equal distances from a fluid drop projecting point, the height of the surface waves gradually increases, amplified by their interference, and fluid drops are separated at and projected from the fluid drop projecting point.

摘要翻译： 提供了一种能够飞行的液滴投影装置，其流体滴落远小于投射液滴的开口孔，并且还容易改变流体液滴的尺寸。 为此，在具有开口的液滴突出室中的流体的自由表面上施加朝向液滴突出点行进的表面波。 表面波由表面波发生器产生，该表面波发生器包括液滴投射室，光阑和压电致动器。 由于表面波由表面波发生器以与液滴突出点基本相等的距离产生，所以表面波的高度逐渐增加，由它们的干涉放大，并且液滴在液滴突出点处被分离并从液滴突出点突出 。

公开(公告)号：US06921149B2

公开(公告)日：2005-07-26

申请号：US10600698

申请日：2003-06-23

申请人： Masakazu Okuda ,  Ryuichi Kojima

发明人： Masakazu Okuda ,  Ryuichi Kojima

IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/14 ,  B41J2/15 ,  B41J2/145

CPC分类号： B41J2/14233 ,  B41J2/15 ,  B41J2002/14419 ,  B41J2002/14459

摘要： A liquid drop discharging head includes a matrix array head that can reduce variations in a print density without reducing a recording speed. A liquid drop discharging device provided with this liquid drop discharging head can realize compatibility between recording an image at high speed and recording the high quality image. Ejectors are disposed alternately to form dots on a recording medium that are arranged in the order of alternating ejectors such as A, E, B, F, C, G, D, and H. The dots having a relatively large diameter and the dots having a relatively small diameter are mixedly disposed in a sub-scanning direction at predetermined pitches. Mixed arrangement of dots increases space frequency variations in a print density along the sub-scanning direction, thus, making it difficult for the human eye to sense the density variations, and ensuring a high uniformity in a recorded result.

摘要翻译： 液滴排放头包括可以减小打印浓度的变化而不降低记录速度的矩阵阵列头。 设置有该液滴排出头的液滴排出装置可以实现高速记录图像和记录高质量图像之间的兼容性。 喷射器被交替排列以在记录介质上形成以按照A，E，B，F，C，G，D和H的交替喷射器的顺序排列的点。这些点具有相对较大的直径，并且点具有 相对小的直径以预定间距以副扫描方向混合设置。 点的混合排列增加了沿着副扫描方向的打印浓度的空间频率变化，从而难以使人眼感测到浓度变化，并且确保记录结果的高均匀性。

公开(公告)号：US07192118B2

公开(公告)日：2007-03-20

申请号：US10715499

申请日：2003-11-19

申请人： Ryuichi Kojima ,  Masakazu Okuda

发明人： Ryuichi Kojima ,  Masakazu Okuda

IPC分类号： B41J2/15

CPC分类号： B41J2/145 ,  B41J2/2121 ,  B41J2002/14419 ,  B41J2002/14459

摘要： When ejectors (nozzles) are viewed in order in a sub-scanning direction, the ejectors are arranged so that positions of the ejectors in a main scanning direction alternate in an offsetting manner. When formed dots are viewed along the sub-scanning direction, sizes of the dots are changed at random. Accordingly, density unevenness is decreased, the ejectors can be arranged in high density, and an image can be recorded at high speed. That is, the invention provides a droplet ejecting head in which density unevenness which tends to be generated in a head having a matrix-like nozzle arrangement can be decreased without decreasing recording speed and thus high-speed recording is made compatible with high-quality recording. The invention also provides a droplet ejecting apparatus which is provided with the droplet ejecting head.

摘要翻译： 当在副扫描方向上顺序地观察喷射器（喷嘴）时，喷射器被布置成使得喷射器在主扫描方向上的位置以偏移方式交替。 当沿着副扫描方向观察形成的点时，点的尺寸随机改变。 因此，密度不均匀性降低，喷射器可以高密度地布置，并且可以高速记录图像。 也就是说，本发明提供了一种液滴喷射头，其中可以在不降低记录速度的情况下降低在具有矩阵状喷嘴装置的头部中倾向于产生的浓度不均匀性，从而使高速记录与高质量记录兼容 。 本发明还提供一种具有液滴喷射头的液滴喷射装置。

公开(公告)号：US20060061609A1

公开(公告)日：2006-03-23

申请号：US11224382

申请日：2005-09-12

申请人： Masakazu Okuda ,  Ryuichi Kojima

发明人： Masakazu Okuda ,  Ryuichi Kojima

IPC分类号： B41J29/38

CPC分类号： B41J2/04573 ,  B41J2/04581 ,  B41J2/04588

摘要： A driving method for a droplet ejection head which is plurally equipped with an ejector, which includes a nozzle and an actuator for ejecting droplets. The driving method includes preparing plural driving waveforms that correspond to variations between respectively differing ejection characteristics of the ejectors, and systematically or arbitrarily applying the plural of driving waveforms to the actuators as driving signals. Accordingly, when a driving waveform which is suited to an ejection characteristic of the head is applied, a normal ejection can be performed. In contrast, when a driving waveform which is not suited to the ejection characteristic of the head is applied, an ejection state is not optimal. However, the driving waveform suited to the ejection characteristic is applied immediately thereafter. The driving waveform not suited to the ejection characteristic is applied to the ejector systematically or arbitrarily, and is not applied continuously.

摘要翻译： 一种用于液滴喷射头的驱动方法，其多个装备有喷射器，喷射器包括喷嘴和用于喷射液滴的致动器。 驱动方法包括制备与喷射器的不同喷射特性之间的变化相对应的多个驱动波形，并且将多个驱动波形系统地或任意地施加到致动器作为驱动信号。 因此，当施加适合于头部的喷射特性的驱动波形时，可以执行正常喷射。 相反，当施加不适合头部喷射特性的驱动波形时，喷射状态不是最佳的。 然而，立即施加适合于喷射特性的驱动波形。 不适合喷射特性的驱动波形系统地或任意地施加到喷射器，并且不连续施加。

公开(公告)号：US20090252525A1

公开(公告)日：2009-10-08

申请号：US12411591

申请日：2009-03-26

申请人： Ryuichi Kojima

发明人： Ryuichi Kojima

IPC分类号： G03G21/20

CPC分类号： G03G15/6573 ,  G03G21/206 ,  G03G2221/1645

摘要： A first air blowing portion including an upper duct and a first fan blows air along a first surface of a sheet passing through a sheet conveying path in a direction orthogonal to a sheet conveying direction, and a second air blowing portion including a lower duct and a second fan blows air along a second surface opposed to the first surface of the sheet passing through the sheet conveying path in a direction reverse to the direction orthogonal to the sheet conveying direction of the first air blowing portion, so that both surfaces of the sheet are cooled.

摘要翻译： 包括上管道和第一风扇的第一送风部分沿着与纸张传送方向正交的方向沿着片材传送路径的片材的第一表面吹送空气，第二吹风部分包括下管道和 第二风扇沿着与沿着与第一送风部的片材输送方向正交的方向的方向相反的方向沿着与通过片材输送路径的片材的第一表面相对的第二表面吹动空气，使得片材的两个表面 冷却。

公开(公告)号：US07242878B2

公开(公告)日：2007-07-10

申请号：US11082919

申请日：2005-03-18

申请人： Ryuichi Kojima ,  Takashi Yahagi

发明人： Ryuichi Kojima ,  Takashi Yahagi

IPC分类号： G03G15/08

CPC分类号： G03G15/0855 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/0865 ,  G03G15/0877 ,  G03G2215/0602 ,  G03G2215/066 ,  G03G2215/0888

摘要： An image forming apparatus includes a developing device for developing an electrostatic latent image, formed on an image-bearing member, with toner; a developer supply container which contains developer containing toner and a carrier and is detachably mountable to a main assembly of the image forming apparatus; developer supply means for supplying the developer contained in the developer supply container to the developing-device; and developer discharge means for permitting discharge of the developer in the developing device to the outside of the developing device. To the image forming apparatus, one of plural kinds of developer supply containers containing developers having different carrier ratios in the developers is selectively mountable. The image forming apparatus further comprises notification means for providing notification of the kind of the developer supply container to be selected on the basis of information on deterioration of the carrier when the developer supply container is replaced.

摘要翻译： 图像形成装置包括：用调色剂显影形成在图像承载部件上的静电潜像的显影装置; 显影剂供应容器，其容纳含有调色剂的显影剂和载体，并且可拆卸地安装到图像形成装置的主组件; 显影剂供应装置，用于将包含在显影剂供应容器中的显影剂供应到显影装置; 以及用于允许显影装置中的显影剂排出到显影装置外部的显影剂排出装置。 对于图像形成装置，可以选择性地安装包含显影剂中具有不同载流子比的显影剂的多种显影剂供应容器之一。 图像形成装置还包括通知装置，用于根据关于更换显影剂供给容器时的运送装置的劣化的信息，提供要选择的显影剂供给容器的种类的通知。

公开(公告)号：US06308947B1

公开(公告)日：2001-10-30

申请号：US09617531

申请日：2000-07-14

申请人： Ryuichi Kojima ,  Ryukichi Inoue ,  Yoshiyuki Yamazaki ,  Yoshihiro Matsuo

发明人： Ryuichi Kojima ,  Ryukichi Inoue ,  Yoshiyuki Yamazaki ,  Yoshihiro Matsuo

IPC分类号： B65H352

CPC分类号： B65H3/0661 ,  B65H3/34 ,  B65H3/56 ,  B65H7/04 ,  B65H2402/542 ,  B65H2403/42 ,  B65H2405/1136 ,  B65H2511/214 ,  B65H2511/51 ,  B65H2220/01 ,  B65H2220/02 ,  B65H2220/11

摘要： The present invention provides a sheet feeding apparatus which has a sheet stacking surface for supporting sheets, sheet feeding device for feeding out the sheets supported on the sheet stacking surface, a movable separation inclined surface against which leading ends of the sheets supported on the sheet stacking surface abut and which is provided rotatably between a first position and a second position different in an inclination angle of the movable separation inclined surface with respect to the sheet stacking surface, and operation device for switching the movable separation inclined surface between the first position and the second position.

摘要翻译： 本发明提供一种片材进给装置，其具有用于支撑片材的片材堆叠表面，用于馈送支撑在片材堆叠表面上的片材的片材进给装置，可移动的分离倾斜表面，支撑在片材堆叠上的片材的前端 表面抵接，并且可旋转地设置在可移动分离倾斜表面相对于纸张堆叠表面的倾斜角度不同的第一位置和第二位置之间，以及用于在第一位置和第二位置之间切换可移动分离倾斜表面的操作装置 第二名

公开(公告)号：US06769680B2

公开(公告)日：2004-08-03

申请号：US09854574

申请日：2001-05-15

申请人： Ryuichi Kojima ,  Ryukichi Inoue ,  Masayuki Fukuda

发明人： Ryuichi Kojima ,  Ryukichi Inoue ,  Masayuki Fukuda

IPC分类号： B65H306

CPC分类号： B65H3/047 ,  B65H3/0669 ,  B65H2403/42 ,  B65H2405/1136

摘要： An object of the present invention is to provide a sheet feeding apparatus that has sheet supporting device for supporting a sheet, a driving rotary member driven and rotated by a driving source, a rocking member disposed rockably on the driving rotary member, a sheet feeding rotary member rotatably disposed on the rocking member and can be brought into contact with the sheet supported by the sheet supporting device, a following rotary member coupled with the sheet feeding rotary member on the rocking member, a winding and hanging member hung around the driving rotary member and the following rotary member, a separating slant surface disposed on a side of leading ends of sheets fed out by the sheet feeding rotary member for separating the sheets one by one, and rocking force generating device disposed on the rocking member for guiding a tensed side of the winding and hanging member in a direction away from the sheets, and for generating a rocking force, on the rocking member, which brings the sheet feeding rotary member into pressure contact with the sheet by receiving a pressing force produced due to a tension of the tensed side.

摘要翻译： 本发明的目的是提供一种片材进给装置，其具有用于支撑片材的片材支撑装置，由驱动源驱动和旋转的驱动旋转部件，摇摆地设置在驱动旋转部件上的片材进给旋转体 构件可旋转地设置在摇摆构件上并且可以与由片材支撑装置支撑的片材接触，与摇摆构件上的片材进给旋转构件联接的跟随旋转构件，悬挂在驱动旋转构件周围的卷绕悬挂构件 以及下述旋转部件，设置在由片材进给旋转部件一张一张地分离的片材供给旋转部件送出的片材的前端侧的分离斜面，以及设置在摆动部件上的用于引导张紧侧的摇摆力产生装置 绕组和悬挂构件的方向远离片材，并且用于在摇摆构件上产生摇摆力，其中bri 通过接收由于张紧侧的张力产生的挤压力，片材进给旋转构件与片材压力接触。