公开(公告)号：US4897670A

公开(公告)日：1990-01-30

申请号：US212556

申请日：1988-06-28

申请人： Tai Hasegawa ,  Masatoshi Matsuzaki ,  Jun Monnai

发明人： Tai Hasegawa ,  Masatoshi Matsuzaki ,  Jun Monnai

IPC分类号： B41J25/304 ,  B41J2/32 ,  B41J25/316 ,  B41J35/28

CPC分类号： B41J35/28 ,  B41J25/316

摘要： A thermal transfer printer includes a head holding member for holding a printing head and for applying an urging force for urging the printing head against a platen and separating the printing head from the platen. An elastic member biases the head holding member to urge the printing head against the platen. A regulating member regulates displacement of the elastic member to change the urging force of the printing head against the platen. A driving unit drives the regulating member. A detecting unit detects either one or both of the type of ink ribbon or the surface roughness of recording paper. A control unit controls the driving unit in accordance with the result of the detecting unit. The urging force of the printing head is thus changed in accordance with either one or both of the type of ink ribbon or the surface roughness of the recording paper.

摘要翻译： 热转印打印机包括用于保持打印头的头部保持构件，并且用于施加用于将打印头推靠在压板上并将打印头与压板分离的推动力。 弹性构件偏压头部保持构件以将打印头推压在压板上。 调节构件调节弹性构件的位移以改变打印头抵靠压板的压力。 驱动单元驱动调节构件。 检测单元检测墨带的一种或两种或记录纸的表面粗糙度。 控制单元根据检测单元的结果控制驱动单元。 因此，打印头的推压力根据墨带的类型或记录纸的表面粗糙度中的一种或两种而改变。

公开(公告)号：US06207336B1

公开(公告)日：2001-03-27

申请号：US09065437

申请日：1998-04-24

申请人： Masahiko Itaya ,  Hiroyuki Nakagoshi ,  Tsutomu Sasaki ,  Tai Hasegawa ,  Toshihiro Saito ,  Yoshiyuki Tanaka

发明人： Masahiko Itaya ,  Hiroyuki Nakagoshi ,  Tsutomu Sasaki ,  Tai Hasegawa ,  Toshihiro Saito ,  Yoshiyuki Tanaka

IPC分类号： G03G1310

CPC分类号： G03G15/101 ,  G03G9/12 ,  G03G9/18 ,  G03G13/10

摘要： A liquid developing method that uses a highly-concentrated liquid developing agent to develop an electrostatic latent image. A highly-concentrated liquid developing agent with a viscosity of 100 to 1,000 mPa.s can be used. Therefore, a film of developing agent from 5 to 40 &mgr;m thick can be formed on the surface of the developing roller or developing belt and this provides a soft contact with the photosensitive member surface where the electrostatic latent image has been formed. If the surface of the photosensitive member does not have good release properties, a film of pre-wet liquid can be formed on the surface of the photosensitive member. A gap which is larger than the thickness of the liquid developing agent film and smaller than the sum of the thicknesses of the liquid developing agent film and the pre-wet liquid film is maintained between the surfaces of the photosensitive member and the developing roller or other developing agent bearing member such that the pre-wet liquid is always interposed between the two surfaces. Extremely good copies can be obtained if a 5 to 40 &mgr;m thin film of liquid developing agent with a viscosity of 100 to 10,000 mPa.s and containing toner with an average particle size of 1 to 5.0 &mgr;m at a concentration of 5 to 40% is used with a 30 &mgr;m or less thin film of pre-wet liquid with a viscosity of 0.5 to 5.0 mPa.s and the gap between the photosensitive member and the developing agent roller or other developing agent bearing member is set at 5 to 60 &mgr;m.

摘要翻译： 使用高浓度液体显影剂显影静电潜像的液体显影方法。可以使用粘度为100至1,000mPa.s的高浓度液体显影剂。 因此，可以在显影辊或显影带的表面上形成5至40μm厚的显影剂的膜，并且与形成静电潜像的感光构件表面形成软接触。 如果感光构件的表面不具有良好的剥离性能，则可以在感光构件的表面上形成预湿液体膜。 在感光构件和显影辊等的表面之间保持大于液体显影剂膜的厚度的间隙，并且小于液体显影剂膜和预湿液膜的厚度之和的间隙 显影剂承载构件，使得预湿液体总是插入在两个表面之间。 如果粘度为100〜10,000mPa·s且含有平均粒径为1〜5.0μm的调色剂浓度为5〜40％的5〜40μm的液体显影剂薄膜，则可以得到非常好的份数 与30μm或更薄的预湿液体薄膜一起使用，粘度为0.5至5.0mPa.s，感光构件和显影剂辊或其它显影剂承载构件之间的间隙设定为5至60μm。

公开(公告)号：US6029036A

公开(公告)日：2000-02-22

申请号：US627783

申请日：1996-03-20

申请人： Masahiko Itaya ,  Hiroyuki Nakagoshi ,  Tsutomu Sasaki ,  Tai Hasegawa ,  Toshihiro Saito ,  Yoshiyuki Tanaka

发明人： Masahiko Itaya ,  Hiroyuki Nakagoshi ,  Tsutomu Sasaki ,  Tai Hasegawa ,  Toshihiro Saito ,  Yoshiyuki Tanaka

IPC分类号： G03G9/12 ,  G03G9/18 ,  G03G13/10 ,  G03G15/10

CPC分类号： G03G15/101 ,  G03G13/10 ,  G03G9/12 ,  G03G9/18

摘要： A liquid developing method and a liquid developing apparatus that use a highly-concentrated liquid developing agent to develop an electrostatic latent imageA highly-concentrated liquid developing agent with a viscosity of 100 to 1,000 mPa.s can be used. Therefore, a film of developing agent from 5 to 40 .mu.m thick can be formed on the surface of the developing roller or developing belt (510) and this provides a soft contact with the photosensitive member surface where the electrostatic latent image has been formed. If the surface of the photosensitive member does not have good release properties, a film of pre-wet liquid can be formed on the surface of the photosensitive member (10). A gap which is larger than the thickness of the liquid developing agent film and smaller than the sum of the thicknesses of the liquid developing agent film and the pre-wet liquid film is maintained between the surfaces of the photosensitive member and the developing roller or other developing agent bearing member such that the pre-wet liquid is always interposed between the two surfaces. Extremely good copies can be obtained if a 5 to 40 .mu.m thin film of liquid developing agent with a viscosity of 100 to 10,000 mPa.s and containing toner with an average particle size of 1 to 5.0 .mu.m at a concentration of 5 to 40% is used with a 30 .mu.m or less thin film of pre-wet liquid with a viscosity of 0.5 to 5.0 mPa.s and the gap between the photosensitive member and the developing agent roller or other developing agent bearing member is set at 5 to 60 .mu.m.

摘要翻译： 使用高浓缩液体显影剂显影静电潜像的液体显影方法和液体显影装置可以使用粘度为100至1,000mPa.s的高浓度液体显影剂。 因此，可以在显影辊或显影带（510）的表面上形成5至40μm厚的显影剂膜，并且与形成静电潜像的感光构件表面形成软接触。 如果感光构件的表面不具有良好的剥离性能，则可以在感光构件（10）的表面上形成预湿液体膜。 在感光构件和显影辊等的表面之间保持大于液体显影剂膜的厚度的间隙，并且小于液体显影剂膜和预湿液膜的厚度之和的间隙 显影剂承载构件，使得预湿液体总是插入在两个表面之间。 如果5至40μm的液体显影剂薄膜，粘度为100至10,000mPa.s并且平均粒径为1至5.0μm的调色剂，浓度为5至40，则可以获得非常好的份数 ％与30μm以下的粘度为0.5〜5.0mPa.s的预湿液体薄膜一起使用，感光构件和显影剂辊或其它显影剂承载构件之间的间隙设定为5〜 60亩。

公开(公告)号：US4928134A

公开(公告)日：1990-05-22

申请号：US320515

申请日：1989-03-08

申请人： Tai Hasegawa ,  Jun Monnai ,  Masatoshi Matsuzaki

发明人： Tai Hasegawa ,  Jun Monnai ,  Masatoshi Matsuzaki

IPC分类号： B41J11/08 ,  G01D15/00

CPC分类号： B41J11/08

摘要： A platen for a thermal transfer printer includes a support and a platen body mounted on the support and made of an elastic material. The platen body has a first layer located on a thermal printer head side and having a high hardness and a second layer having a hardness lower than that of the first layer. The hardness of the first layer is a JIS A hardness of 60 to 100. The front layer is treated such that a surface roughness of the first layer is not more than 30 .mu.m and a friction coefficient of a surface thereof is small.

公开(公告)号：US4816842A

公开(公告)日：1989-03-28

申请号：US76481

申请日：1987-07-22

申请人： Tai Hasegawa ,  Jun Monnai ,  Masatoshi Matsuzaki

发明人： Tai Hasegawa ,  Jun Monnai ,  Masatoshi Matsuzaki

IPC分类号： B41J11/08 ,  G01D15/00

CPC分类号： B41J11/08

摘要： A platen for a thermal transfer printer includes a support and a platen body mounted on the support and made of an elastic material. The platen body has a first layer located on a thermal printer head side and having a high hardness and a second layer having a hardness lower than that of the first layer. The hardness of the first layer is a JIS a hardness of 60 to 100. The front layer is treated such that a surface roughness of the first layer is not more than 30 .mu.m and a friction coefficient of a surface thereof is small.

摘要翻译： 用于热转印打印机的压板包括支撑件和安装在支撑件上并由弹性材料制成的压板体。 压板本体具有位于热敏打印头侧并具有高硬度的第一层和具有低于第一层的硬度的第二层。 第一层的硬度为JIS a的硬度为60〜100。前层进行处理使得第一层的表面粗糙度不大于30μm，其表面的摩擦系数小。

公开(公告)号：US06137976A

公开(公告)日：2000-10-24

申请号：US692094

申请日：1996-08-07

申请人： Masahiko Itaya ,  Tai Hasegawa ,  Tsutomu Sasaki

发明人： Masahiko Itaya ,  Tai Hasegawa ,  Tsutomu Sasaki

IPC分类号： G03G9/12 ,  G03G15/01 ,  G03G15/10

CPC分类号： G03G9/12 ,  G03G15/0121 ,  G03G15/0194 ,  G03G15/101 ,  G03G15/0189 ,  G03G2215/0103 ,  G03G2215/0106 ,  G03G2215/0119 ,  G03G2215/0174

摘要： A multi-color image formation apparatus that has multiple developed image formation devices, each corresponding to one color. Each of the developed image formation devices has a photosensitive member, charging apparatus that charges the photosensitive member, exposure apparatus that exposes the charged photosensitive member, and developing apparatus that supplies highly viscous and highly concentrated color liquid developing agent to the surface of the latent image on the photosensitive member. Each of the developed image formation devices is provided with transfer apparatus that sequentially transfers the developed images, each of which has been formed on the surface of the latent imgae on one of the photosensitive members, to the paper transported by the transfer belt and thereby forms a color image on the paper. An electrostatic latent image is formed on a photosensitive member such that a developed image corresponding to the desired print image remains on the developing agent bearing member. The highly viscous and highly concentrated liquid developing agent that has been applied to the developing belt is removed at the positions corresponding to the electrostatic latent image and the normal developed image remaining on the developing belt is transferred to the paper the developed image is not spread during pressure transfer and the surface energy of the image bearing member is lower than that of the thin layer of liquid developer agent

摘要翻译： 一种具有多个显影图像形成装置的多色图像形成装置，每个对应于一种颜色。 每个显影图像形成装置具有感光构件，对感光构件充电的充电装置，曝光带电感光构件的曝光装置和向潜像表面供应高粘度和高浓度彩色液体显影剂的显影装置 在感光构件上。 每个显影图像形成装置都设置有传送装置，其将已经形成在其中一个感光构件上的潜在眼睛的表面上的显影图像依次传送到由转印带传送的纸张，从而形成 纸上的彩色图像。 在感光构件上形成静电潜像，使得与所需打印图像相对应的显影图像残留在显影剂承载构件上。 已经施加到显影带上的高粘度和高度浓缩的液体显影剂在与静电潜像对应的位置处被去除，并且保留在显影带上的正常显影图像被转印到纸张上，显影图像不会在 压力传递和图像承载部件的表面能低于液体显影剂薄层的表面能