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1. 发明授权

US08805227B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08805227B2
公开(公告)日：2014-08-12
申请号：US13606870
申请日：2012-09-07
申请人： Nobuyasu Tamura
发明人： Nobuyasu Tamura
IPC分类号： G03G15/20
CPC分类号： G03G15/205
摘要： An image forming apparatus including a heating rotating body (first body) and a pressurizing rotating body (second body) disposed in a pressure contact state, and commencing image forming when a temperature of the first body reaches a predetermined temperature lower than a fixing temperature. The apparatus acquires a value indicating a temperature of the second body upon commencement of warm-up, and when the value is below a threshold value, heats the first body until the temperature thereof reaches the fixing temperature while rotating the two bodies at a first speed, and when the value equals or exceeds the threshold value, heats the first body until the temperature thereof reaches the predetermined temperature while rotating the two bodies at a second speed slower than the first speed and further heats the first body until the temperature thereof reaches the fixing temperature while rotating the two bodies at the first speed.
摘要翻译：一种图像形成装置，包括设置在压力接触状态的加热旋转体（第一主体）和加压旋转体（第二主体），并且当第一主体的温度达到比定影温度低的预定温度时开始图像形成。该设备获取表示预热开始时第二机体的温度的值，并且当该值低于阈值时，加热第一机体直到其温度达到定影温度，同时以第一速度旋转两个机体并且当该值等于或超过阈值时，加热第一体直到其温度达到预定温度，同时以比第一速度慢的第二速度旋转两个本体，并且进一步加热第一体直至其达到温度在第一速度旋转两个物体时定影温度。

2. 发明申请

US20130084094A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20130084094A1
公开(公告)日：2013-04-04
申请号：US13606870
申请日：2012-09-07
申请人： Nobuyasu TAMURA
发明人： Nobuyasu TAMURA
IPC分类号： G03G15/20
CPC分类号： G03G15/205
摘要： An image forming apparatus including a heating rotating body (first body) and a pressurizing rotating body (second body) disposed in a pressure contact state, and commencing image forming when a temperature of the first body reaches a predetermined temperature lower than a fixing temperature. The apparatus acquires a value indicating a temperature of the second body upon commencement of warm-up, and when the value is below a threshold value, heats the first body until the temperature thereof reaches the fixing temperature while rotating the two bodies at a first speed, and when the value equals or exceeds the threshold value, heats the first body until the temperature thereof reaches the predetermined temperature while rotating the two bodies at a second speed slower than the first speed and further heats the first body until the temperature thereof reaches the fixing temperature while rotating the two bodies at the first speed.
摘要翻译：一种图像形成装置，包括设置在压力接触状态的加热旋转体（第一主体）和加压旋转体（第二主体），并且当第一主体的温度达到比定影温度低的预定温度时开始图像形成。该设备获取表示预热开始时第二机体的温度的值，并且当该值低于阈值时，加热第一机体直到其温度达到定影温度，同时以第一速度旋转两个机体并且当该值等于或超过阈值时，加热第一体直到其温度达到预定温度，同时以比第一速度慢的第二速度旋转两个本体，并且进一步加热第一体直至其达到温度在第一速度旋转两个物体时定影温度。

3. 发明申请

US20120020693A1 CLEANING APPARATUS AND IMAGE FORMING APPARATUS 失效
标题翻译：清洁装置和图像形成装置
公开(公告)号：US20120020693A1
公开(公告)日：2012-01-26
申请号：US13186643
申请日：2011-07-20
申请人： Hideo YAMAKI , Shigetaka KUROSU , Nobuyasu TAMURA , Hajime KAWAKAMI , Yusuke NISHISAKA , Keiki KATSUMATA
发明人： Hideo YAMAKI , Shigetaka KUROSU , Nobuyasu TAMURA , Hajime KAWAKAMI , Yusuke NISHISAKA , Keiki KATSUMATA
IPC分类号： G03G15/00 , G03G15/16
CPC分类号： G03G15/161
摘要： A cleaning device for cleaning a belt member, includes a cleaning blade; a removing member coming in contact with the surface of the belt member so as to remove foreign matter adhering on the surface of the belt member; and a contact pressure changing section to change a contact pressure between the removing member to the belt member, wherein, when the contact pressure between the removing member and a region of the belt member corresponding in position to a toner image to be not transferred to a paper sheet is made P1, and the contact pressure between the removing member and a region of the belt member corresponding in position to a toner image to be transferred to a paper sheet is made P2, the contact pressure changing section changes the contact pressure to satisfy the conditional formula: (P1
摘要翻译：一种用于清洁带构件的清洁装置，包括清洁刮板; 与带部件的表面接触的去除部件，以去除附着在带部件表面上的异物; 以及接触压力改变部分，用于改变去除部件与带部件之间的接触压力，其中，当去除部件与带状部件的与未调色剂图像相对应的位置的区域之间的接触压力将纸张制成P1，将去除构件与带构件的与调色剂图像相对应的位置的区域之间的接触压力设定为P2，接触压力改变部分使接触压力变化以满足条件公式：（P1

4. 发明申请

US20080240793A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20080240793A1
公开(公告)日：2008-10-02
申请号：US12015106
申请日：2008-01-16
申请人： Kazutoshi Kobayashi , Yutaka Miyasaka , Nobuyasu Tamura
发明人： Kazutoshi Kobayashi , Yutaka Miyasaka , Nobuyasu Tamura
IPC分类号： G03G15/09
CPC分类号： G03G15/0921 , G03G2215/0634
摘要： An image forming apparatus having an image carrier for forming an electrostatic latent image and a developing unit for developing the electrostatic latent image with a two-component developing agent, the developing unit includes: a developing agent carrier for developing the electrostatic latent image to form a visible image, having inside thereof a development main magnetic pole for forming a bristle of a magnetic brush; and a plurality of magnetic poles for conveying the developing agent, wherein the developing unit performs a counter type contact developing method, and wherein, the development area is formed so that, a contact width of the bristle of the magnetic brush is 70% or less with respect to a development width, and a center position of the contact width is positioned on an upstream side with respect to a center position of the development width in a rotation direction of said image carrier.
摘要翻译：一种具有用于形成静电潜像的图像载体和用于使用双组分显影剂显影静电潜像的显影单元的图像形成装置，所述显影单元包括：用于显影静电潜像以形成静电潜像的显影剂载体可见图像，其内部具有用于形成磁刷的刷毛的显影主磁极; 以及用于输送显影剂的多个磁极，其中显影单元执行反式接触显影方法，并且其中形成显影区域使得磁刷的刷毛的接触宽度为70％以下相对于显影宽度，并且接触宽度的中心位置位于相对于所述图像载体的旋转方向的显影宽度的中心位置的上游侧。

5. 发明授权

US07289754B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07289754B2
公开(公告)日：2007-10-30
申请号：US11182785
申请日：2005-07-18
申请人： Yutaka Miyasaka , Nobuyasu Tamura , Kazutoshi Kobayashi
发明人： Yutaka Miyasaka , Nobuyasu Tamura , Kazutoshi Kobayashi
IPC分类号： G03G15/09
CPC分类号： G03G15/0921
摘要： An image forming apparatus incorporating: an image forming body; and a developing unit having a developer carrier, a magnetic field generator, a developer restriction member, a first conveyer, and a second conveyer, wherein the magnetic field generator has: a main magnetic pole; pickup magnetic pole; and a strip-off magnetic pole, wherein the developing unit satisfies following conditions: (a) the second conveyer is a screw conveyer having an outer diameter within 24 mm-30 mm, rotating speed of 300-500 rpm, (b) the pickup magnetic pole is arranged at an angle of 25°-60° downstream with a line connecting a rotation centers of the developer carrier and the second conveyer, (c) the strip-off magnetic pole is arranged at 60°-80° upward with the line,(d) a transporting capability of the first conveyer is larger than that of the second conveyer.
摘要翻译：一种图像形成装置，包括：成像体; 以及具有显影剂载体，磁场发生器，显影剂限制构件，第一输送器和第二输送器的显影单元，其中所述磁场发生器具有：主磁极; 拾磁极; 和剥离磁极，其中显影单元满足以下条件：（a）第二输送机是外径在24mm-30mm，转速为300-500rpm的螺旋输送机，（b）拾取器磁极以下方的25°-60°的角度布置有连接显影剂载体和第二输送机的旋转中心的线，（c）剥离磁极以60°-80°向上设置，（d）第一输送机的输送能力大于第二输送机的输送能力。

6. 发明申请

US20070104501A1 Image forming apparatus and fog control method 有权
标题翻译：成像装置和雾控制方法
公开(公告)号：US20070104501A1
公开(公告)日：2007-05-10
申请号：US11507616
申请日：2006-08-22
申请人： Mineyuki Sako , Yutaka Miyasaka , Nobuyasu Tamura , Kazutoshi Kobayashi
发明人： Mineyuki Sako , Yutaka Miyasaka , Nobuyasu Tamura , Kazutoshi Kobayashi
IPC分类号： G03G15/00
CPC分类号： G03G15/5037 , G03G15/5033 , G03G2215/0119
摘要： An image forming apparatus includes a fog controller to control a fogging level of a toner image carrier by adjusting a fog control parameter on the basis of the fogging level detected by a fogging level detection section and the target fogging level stored in a memory section. While varying a value of the fog control parameter, the fog controller makes a detection pattern forming section to form a series of detection patterns between toner images for each page on the toner image carrier, makes the fogging level detection section to detect each of fogging levels of the series of detection patterns, determines a target fog control parameter value on the basis of each fogging level of the series of detection patterns detected and the target fogging level stored, and adjusts the fog control parameter on the basis of the target fog control parameter value.
摘要翻译：图像形成装置包括雾化控制器，其通过基于由雾化水平检测部检测到的雾化水平和存储在存储部中的目标雾化水平来调整雾度控制参数来控制调色剂图像载体的雾化水平。在改变灰雾控制参数的值的同时，雾化控制器形成检测图案形成部分，以在调色剂图像载体上的每一页的调色剂图像之间形成一系列检测图案，使得雾化水平检测部分检测每个雾度水平基于所检测的一系列检测图案的每个雾化水平和存储的目标雾化水平来确定目标雾控制参数值，并且基于目标雾控制参数来调整雾控制参数值。

7. 发明申请

US20070053706A1 Image forming apparatus and image forming method 有权
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US20070053706A1
公开(公告)日：2007-03-08
申请号：US11473101
申请日：2006-06-22
申请人： Kazutoshi Kobayashi , Yutaka Miyasaka , Mineyuki Sako , Nobuyasu Tamura
发明人： Kazutoshi Kobayashi , Yutaka Miyasaka , Mineyuki Sako , Nobuyasu Tamura
IPC分类号： G03G15/08
CPC分类号： G03G15/095 , G03G15/50
摘要： An image forming apparatus includes: a moving speed ratio change section which changes a circumferential speed ratio between a surface of a developer bearing member and a surface of an image carrier; and a memory section which stores a target value of fog toner. After the circumferential speed ratio has been changed by the moving speed ratio change section, a controller determines a fog control parameter based on comparing the value detected by the fog toner detection section with the target value stored in the memory section. After then, and the controller controls the moving speed ratio change section to return the circumferential speed ratio to the circumferential speed ratio prior to the change.
摘要翻译：图像形成装置包括：移动速度比变化部，其改变显影剂承载部件的表面和图像载体的表面之间的圆周速度比; 以及存储部分，其存储雾调色剂的目标值。在通过移动速度比变化部分改变圆周速度比之后，控制器基于将由雾化调色剂检测部分检测到的值与存储在存储部中的目标值进行比较来确定雾化控制参数。然后，控制器控制移动速度比变化部分，以便在变化之前将圆周速度比返回到圆周速度比。

8. 发明授权

US06816696B2 Image forming apparatus provided with developing device using magnetic brush developing method 有权
标题翻译：具有使用磁刷显影方法的显影装置的图像形成装置
公开(公告)号：US06816696B2
公开(公告)日：2004-11-09
申请号：US10367427
申请日：2003-02-14
申请人： Kimio Nishizawa , Yutaka Miyasaka , Nobuyasu Tamura
发明人： Kimio Nishizawa , Yutaka Miyasaka , Nobuyasu Tamura
IPC分类号： G03G1509
CPC分类号： G03G13/09
摘要： In an image forming apparatus including a developing device, an inequality of 1≦(&agr;/100)×Vr×Hr1/3

9. 发明申请

US20090208230A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20090208230A1
公开(公告)日：2009-08-20
申请号：US12369992
申请日：2009-02-12
申请人： Kazutoshi KOBAYASHI , Yutaka MIYASAKA , Nobuyasu TAMURA
发明人： Kazutoshi KOBAYASHI , Yutaka MIYASAKA , Nobuyasu TAMURA
IPC分类号： G03G15/00 , G03G15/06
CPC分类号： G03G15/5037 , G03G15/065 , G03G2215/0005
摘要： High quality images are provided by controlling development conditions based on the proportion of the toner layer potential difference, which a difference between the toner layer potential and electrostatic latent image potential, to the development contrast potential difference, which is a difference between the development bias potential and electrostatic latent image potential. The control section for controlling a development power supply controls the voltage supplied by the development power supply, based on the toner layer potential difference and development contrast potential difference in the development section. This arrangement ensures formation of high-quality images free from concentration of toner.
摘要翻译：通过基于调色剂层电位差（调色剂层电位和静电潜像电位之间的差异）与显影对比电位差的比例来控制显影条件来提供高质量图像，显影对比度电位差是显影偏压电位和静电潜像电位。用于控制显影电源的控制部分基于显影部分中的调色剂层电位差和显影对比度电位差来控制显影电源提供的电压。这种布置确保形成高质量的图像，不会使色粉浓缩。

10. 发明授权

US06978094B2 Image forming apparatus with a toner density sensor 有权
标题翻译：具有调色剂浓度传感器的图像形成装置
公开(公告)号：US06978094B2
公开(公告)日：2005-12-20
申请号：US10648492
申请日：2003-08-25
申请人： Yutaka Miyasaka , Kimio Nishizawa , Nobuyasu Tamura , Kazutoshi Kobayashi , Eiji Nomura
发明人： Yutaka Miyasaka , Kimio Nishizawa , Nobuyasu Tamura , Kazutoshi Kobayashi , Eiji Nomura
IPC分类号： G03G15/08 , G03G15/10
CPC分类号： G03G15/0849 , G03G15/0853 , G03G15/0893 , G03G2215/0607
摘要： This invention relates to an image forming apparatus including a developing unit which develops an electrostatic latent image formed on an image carrier by using a two-component developing agent containing polymerized toner. The developing unit includes a supply/convey member which conveys the two-component developing agent in the axial direction while agitating it and a toner density sensor which detects the toner density of the two-component developing agent. The toner density sensor is placed to be in a non-contact state with respect to the supply/convey member and oppose it with a gap of 0.8 mm or less. The diameter of the supply/convey member is set to 23 mm or more.
摘要翻译：本发明涉及一种图像形成装置，其包括显影单元，该显影单元通过使用含有聚合调色剂的双组分显影剂来显影形成在图像载体上的静电潜像。显影单元包括供给/输送构件，其在搅动时输送双组分显影剂在轴向方向上;以及调色剂浓度传感器，其检测双组分显影剂的调色剂浓度。调色剂浓度传感器被放置成相对于供给/传送部件处于非接触状态，并以0.8mm或更小的间隙相对。供给/输送部件的直径设定为23mm以上。

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