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1. 发明授权

US06647228B2 Image forming device 有权
标题翻译：图像形成装置
公开(公告)号：US06647228B2
公开(公告)日：2003-11-11
申请号：US10051117
申请日：2002-01-22
申请人： Koichi Nakamura , Koichi Yamauchi , Mitsuyoshi Terada , Tadasu Taniguchi , Hideaki Kadowaki , Yoshikazu Harada , Hiroshi Tachiki
发明人： Koichi Nakamura , Koichi Yamauchi , Mitsuyoshi Terada , Tadasu Taniguchi , Hideaki Kadowaki , Yoshikazu Harada , Hiroshi Tachiki
IPC分类号： G03G2100
CPC分类号： G03G21/1638 , G03G15/0194 , G03G2215/00544 , G03G2215/0119 , G03G2221/1675
摘要： In an image forming device of the present invention, which is a tandem type, electrophotographic image forming device, a first separating/contacting mechanism mechanically lowers/raises the whole of a transfer frame holding the transfer and transport belt unit in association with the opening/closing of a front door, a second separating/contacting mechanism mechanically lowers/raises the right side of the transfer frame in association with the opening/closing of a right side door, and a third separating/contacting mechanism mechanically lowers/raises the left side of the transfer frame in association with the opening/closing of a left side door. Therefore, the handling of a paper jam can be carried out even when power supply is cut off, and the transfer frame can be separated from the photoconductor drums just by opening a door from a plurality of access directions, on a side opened.
摘要翻译：在作为串联型电子照相成像装置的本发明的图像形成装置中，第一分离/接触机构将保持传送和传送带单元的传送框架的整体机械地降低/提高与打开/ 关闭前门，第二分离/接触机构与右侧门的打开/关闭相关联地机械地降低/升高转移框架的右侧，并且第三分离/接触机构机械地降低/升高左侧与左侧门的打开/关闭相关联的传送框架。因此，即使切断电源，也可以进行卡纸的处理，只要通过在打开的一侧从多个进入方向开门即可将传送框架与感光鼓分离。

2. 发明授权

US08095040B2 Intermediate transfer-type image forming apparatus with separation/contact mechanism 有权
标题翻译：具有分离/接触机构的中间转印型图像形成装置
公开(公告)号：US08095040B2
公开(公告)日：2012-01-10
申请号：US12334626
申请日：2008-12-15
申请人： Norio Tomita , Hiroshi Tachiki , Takahiko Yoshida , Yoshikazu Harada , Yoshiteru Kikuchi , Kenichi Isomi
发明人： Norio Tomita , Hiroshi Tachiki , Takahiko Yoshida , Yoshikazu Harada , Yoshiteru Kikuchi , Kenichi Isomi
IPC分类号： G03G15/08 , G03G15/10
CPC分类号： G03G15/1605 , G03G21/1623 , G03G21/1647 , G03G21/168 , G03G2215/0158 , G03G2221/1648 , G03G2221/169
摘要： In an embodiment of the present invention, an image forming apparatus includes a transfer belt that primarily transfers a toner image formed on a photosensitive drum; a secondary transfer unit including a transfer mechanism portion that secondarily transfers the primarily transferred toner image to a paper; an optical sensor that detects a reference toner image on the transfer belt; and a shutter that protects a detection face of the optical sensor, wherein a separation/contact mechanism portion disposed so as to be brought into contact with both of the shutter and the secondary transfer unit is provided, and the separation/contact mechanism portion allows the shutter to move so as to open and allows the secondary transfer unit to move so as to separate from the transfer belt when the reference toner image is detected by the optical sensor, and allows the shutter to move so as to separate from the transfer belt when the secondary transfer unit is drawn out from an apparatus main body.
摘要翻译：在本发明的一个实施例中，图像形成装置包括主要传送形成在感光鼓上的调色剂图像的转印带; 二次转印单元，其包括二次将主要转印的调色剂图像转印到纸张上的转印机构部分; 检测转印带上的基准调色剂图像的光学传感器; 以及保护所述光学传感器的检测面的快门，其中设置有与所述挡板和所述二次转印单元接触的分离/接触机构部分，并且所述分离/接触机构部分允许快门移动以便打开并且允许二次转印单元移动以便当由光学传感器检测到参考调色剂图像时与转印带分离，并且允许快门移动以便与转印带分离，当二次转印单元从装置主体中抽出。

3. 发明授权

US06188857B1 Imaging forming apparatus provided with photoreceptor unit with internal gear unit, the protector unit with internal gear, and internal gear unit 失效
标题翻译：成像装置设置有具有内部齿轮单元的感光体单元，具有内部齿轮的保护器单元和内部齿轮单元
公开(公告)号：US06188857B1
公开(公告)日：2001-02-13
申请号：US09323479
申请日：1999-06-01
申请人： Toshio Yamanaka , Yoshiharu Yoneda , Yasuji Yamauchi , Yasuo Kitabatake , Hideaki Kadowaki , Yoshikazu Harada
发明人： Toshio Yamanaka , Yoshiharu Yoneda , Yasuji Yamauchi , Yasuo Kitabatake , Hideaki Kadowaki , Yoshikazu Harada
IPC分类号： G03G1500
CPC分类号： G03G15/757 , Y10T74/19623 , Y10T74/19628 , Y10T74/19642
摘要： An image forming apparatus provided with a photoreceptor with an internal gear includes the internal gear in a photoreceptor drum, a pinion gear in engagement with the internal gear, and a cleaning unit and a developer unit which apply contact pressure onto the photoreceptor drum. The pinion gear is provided in such an area that a resulting force of the contact pressure respectively applied from the process elements does not cause a distortion of the photoreceptor drum which exceeds an axial backlash determined in initialization according to a distance between axes of the pinion gear and the internal gear. The described arrangement prevents interference between non-driving surfaces of the internal gear and the pinion gear. As a result, a smooth rotary motion of the photoreceptor drum can be ensured, thereby preventing an image defect caused by an unstable rotary motion of the photoreceptor drum.
摘要翻译：设置有具有内齿轮的感光体的图像形成装置包括感光鼓中的内齿轮，与内齿轮接合的小齿轮，以及向感光鼓施加接触压力的清洁单元和显影单元。小齿轮设置在这样的区域中，从处理元件分别施加的接触压力的结果的力不会导致感光鼓的变形，其超过在初始化期间根据小齿轮的轴线之间的距离确定的轴向间隙和内齿轮。所述布置防止内齿轮的非驱动表面与小齿轮之间的干涉。结果，可以确保感光鼓的平滑的旋转运动，从而防止由感光鼓的不稳定旋转运动引起的图像缺陷。

4. 发明授权

US6161446A Image forming apparatus provided with photoreceptor unit with internal gear unit, the photoreceptor unit with internal gear, and internal gear unit 失效
标题翻译：图像形成装置设置有具有内部齿轮单元的感光体单元，具有内部齿轮的感光体单元和内部齿轮单元
公开(公告)号：US6161446A
公开(公告)日：2000-12-19
申请号：US323480
申请日：1999-06-01
申请人： Toshio Yamanaka , Yoshiharu Yoneda , Yasuji Yamauchi , Yasuo Kitabatake , Hideaki Kadowaki , Yoshikazu Harada
发明人： Toshio Yamanaka , Yoshiharu Yoneda , Yasuji Yamauchi , Yasuo Kitabatake , Hideaki Kadowaki , Yoshikazu Harada
IPC分类号： G03G15/00 , G03G21/00
CPC分类号： G03G15/757 , Y10T74/19623 , Y10T74/19628 , Y10T74/19642
摘要： An image forming apparatus provided with a photoreceptor with an internal gear includes the internal gear in a photoreceptor drum, a pinion gear in engagement with the internal gear, and a cleaning unit and a developer unit which apply contact pressure onto the photoreceptor drum. The pinion gear is provided in such an area that a resulting force of the contact pressure respectively applied from the process elements does not cause a distortion of the photoreceptor drum which exceeds an axial backlash determined in initialization according to a distance between axes of the pinion gear and the internal gear. The described arrangement prevents interference between non-driving surfaces of the internal gear and the pinion gear. As a result, a smooth rotary motion of the photoreceptor drum can be ensured, thereby preventing an image defect caused by an unstable rotary motion of the photoreceptor drum.
摘要翻译：设置有具有内齿轮的感光体的图像形成装置包括感光鼓中的内齿轮，与内齿轮接合的小齿轮，以及向感光鼓施加接触压力的清洁单元和显影单元。小齿轮设置在这样的区域中，从处理元件分别施加的接触压力的结果的力不会导致感光鼓的变形，其超过在初始化期间根据小齿轮的轴线之间的距离确定的轴向间隙和内齿轮。所述布置防止内齿轮的非驱动表面与小齿轮之间的干涉。结果，可以确保感光鼓的平滑的旋转运动，从而防止由感光鼓的不稳定旋转运动引起的图像缺陷。

5. 发明授权

US5927148A Image forming apparatus equipped with photoreceptor having an internal gear 失效
标题翻译：配备有具有内部齿轮的感光体的图像形成装置
公开(公告)号：US5927148A
公开(公告)日：1999-07-27
申请号：US613056
申请日：1996-03-07
申请人： Toshio Yamanaka , Yoshiharu Yoneda , Yasuji Yamauchi , Yasuo Kitabatake , Hideaki Kadowaki , Yoshikazu Harada
发明人： Toshio Yamanaka , Yoshiharu Yoneda , Yasuji Yamauchi , Yasuo Kitabatake , Hideaki Kadowaki , Yoshikazu Harada
IPC分类号： G03G15/00 , G03G21/00
CPC分类号： G03G15/757 , Y10T74/19623 , Y10T74/19628 , Y10T74/19642
摘要： An image forming apparatus provided with a photoreceptor with an internal gear includes the internal gear in a photoreceptor drum, a pinion gear in engagement with the internal gear, and a cleaning unit and a developer unit which apply contact pressure onto the photoreceptor drum. The pinion gear is provided in such an area that a resulting force of the contact pressure respectively applied from the process elements does not cause a distortion of the photoreceptor drum which exceeds an axial backlash determined in initialization according to a distance between axes of the pinion gear and the internal gear. The described arrangement prevents interference between non-driving surfaces of the internal gear and the pinion gear. As a result, a smooth rotary motion of the photoreceptor drum can be ensured, thereby preventing an image defect caused by an unstable rotary motion of the photoreceptor drum.
摘要翻译：设置有具有内齿轮的感光体的图像形成装置包括感光鼓中的内齿轮，与内齿轮接合的小齿轮，以及向感光鼓施加接触压力的清洁单元和显影单元。小齿轮设置在这样的区域中，从处理元件分别施加的接触压力的结果的力不会导致感光鼓的变形，其超过在初始化期间根据小齿轮的轴线之间的距离确定的轴向间隙和内齿轮。所述布置防止内齿轮的非驱动表面与小齿轮之间的干涉。结果，可以确保感光鼓的平滑的旋转运动，从而防止由感光鼓的不稳定旋转运动引起的图像缺陷。

6. 发明授权

US06175705B1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US06175705B1
公开(公告)日：2001-01-16
申请号：US09441546
申请日：1999-11-16
申请人： Yoshikazu Harada , Toshio Yamanaka , Ayumu Oda , Norio Tomita , Kyosuke Taka , Nobuo Manabe , Takayuki Ohno , Hideaki Kadowaki
发明人： Yoshikazu Harada , Toshio Yamanaka , Ayumu Oda , Norio Tomita , Kyosuke Taka , Nobuo Manabe , Takayuki Ohno , Hideaki Kadowaki
IPC分类号： G03G1500
CPC分类号： G03G21/1864 , G03G15/757 , G03G2221/1654 , G03G2221/1657 , G03G2221/183
摘要： An object of the invention is to provide an image forming apparatus in which a unit can be attached to the apparatus body in a status where a correct positional correlation between a photoconductive drum and each of other process devices mounted on a unit is maintained. A photoconductive drum is positioned within a copier body by a rotating drive shaft, and the other process devices mounted on a process unit are positioned within a copier body by a boss and a locking member. The boss positions the rotating drive shaft within the copier body. Since the locking member is fitted onto a front-side end of the rotation drive shaft, the locking member is positioned within the copier body by the rotating drive shaft. The other process devices mounted on the process unit are positioned within the copier body by the rotating drive shaft via the boss and the locking member. Accordingly, the photoconductive drum and each of the other process devices, which should maintain a predetermined positional correlation with each other within the copier body, are both positioned within the copier body by the rotating drive shaft.
摘要翻译：本发明的目的是提供一种图像形成装置，其中，可以在保持感光鼓和安装在单元上的每个其它处理装置之间的正确位置相关性的状态下将单元附接到装置主体。感光鼓通过旋转的驱动轴定位在复印机主体内，并且安装在处理单元上的其它处理装置通过凸台和锁定构件定位在复印机主体内。凸台将旋转的驱动轴定位在复印机主体内。由于锁定构件安装在旋转驱动轴的前侧端部，锁定构件通过旋转驱动轴位于复印机本体内。安装在处理单元上的其它处理装置经由凸台和锁定构件由旋转的驱动轴定位在复印机主体内。因此，感光鼓和在复印机主体内彼此保持预定的位置相关性的其他处理装置都通过旋转的驱动轴位于复印机主体内。

7. 发明授权

US08339669B2 Image forming apparatus and image forming method with sheet slip compensation 有权
标题翻译：图像形成装置和片材滑移补偿的图像形成方法
公开(公告)号：US08339669B2
公开(公告)日：2012-12-25
申请号：US12029354
申请日：2008-02-11
申请人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Yoshiteru Kikuchi
发明人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Yoshiteru Kikuchi
IPC分类号： G06K15/00 , G06K15/02 , H04N1/60
CPC分类号： G03G15/011 , G03G15/041 , G03G15/326 , G03G2215/0132 , G03G2215/0141 , G03G2215/0465 , G03G2215/0482
摘要： An LD switch is turned ON to output image data outputted from an image processing section to a laser diode, and to irradiate a laser light to a photosensitive drum. The number of pixel dots included in the image data outputted from the image processing section is computed by line basis to detect an image density based on the total sum of the pixel dots of each color at a timing when the image data of Nth line is outputted from the image processing section. The detected image density is compared with a threshold value to turn OFF the LD switch at a timing when the image data of (N+α)th line is outputted when the image density is greater than the threshold value. This suppresses a variation in a rear-end-void length due to sheet slippage.
摘要翻译： LD开关导通，将从图像处理部输出的图像数据输出到激光二极管，并将激光照射到感光鼓。通过线性计算包括在从图像处理部分输出的图像数据中的像素点的数量，以在第N行的图像数据被输出的定时基于每种颜色的像素点的总和来检测图像浓度从图像处理部分。将检测图像浓度与阈值进行比较，以在图像浓度大于阈值时输出第（N +α）行的图像数据的定时关闭LD开关。这抑制了由于片材滑动导致的后端空隙长度的变化。

8. 发明授权

US08055145B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08055145B2
公开(公告)日：2011-11-08
申请号：US12335938
申请日：2008-12-16
申请人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Noriaki Taguchi , Yoshiteru Kikuchi , Kenichi Isomi
发明人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Noriaki Taguchi , Yoshiteru Kikuchi , Kenichi Isomi
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00042 , G03G2215/00059
摘要： An image forming apparatus includes a controller for detecting the opening and closing of a shutter from the output from an optical sensor and controlling the opening and closing operation of the shutter based on the detected result. The controller determines that if the optical sensor is turned “ON” within a predetermined period of time from when the shutter begins opening, the operation of the shutter from the closed state to the open state is correctly detected. When no reflected light is detected by the optical sensor even after a predetermined time has elapsed, the controller determines that an anomaly has occurred and closes the shutter and repeat another detecting process.
摘要翻译：图像形成装置包括控制器，用于根据检测结果检测来自光学传感器的输出的快门的打开和关闭，并控制快门的打开和关闭操作。控制器确定如果在从快门开始打开之后的预定时间段内光学传感器被“接通”，则正确地检测到快门从关闭状态到打开状态的操作。即使经过了规定的时间后，即使光学传感器没有检测到反射光，控制器也判断出异常发生，关闭快门并重新进行另一检测处理。

9. 发明授权

US07777767B2 Image forming apparatus and method of adjusting color shift 有权
标题翻译：图像形成装置及调色方法
公开(公告)号：US07777767B2
公开(公告)日：2010-08-17
申请号：US11592051
申请日：2006-11-01
申请人： Norio Tomita , Yoshikazu Harada , Kengo Matsuyama , Shinichi Yamane
发明人： Norio Tomita , Yoshikazu Harada , Kengo Matsuyama , Shinichi Yamane
IPC分类号： B41J2/385 , B41J2/47 , B41J2/435 , G01D15/14
CPC分类号： G03G15/5033 , G03G15/011 , G03G15/0194 , G03G2215/0119 , G03G2215/0161
摘要： An image forming apparatus includes an image forming unit that forms a color image in which a plurality of color component images are superimposed; and a formation controlling unit that allows the image forming unit to form images for adjustment of formation positions of the respective color component images. The formation controlling unit allows the image forming unit to form, for each color, a plurality of adjustment images having different tilts with respect to a main scanning direction. A shift of a detected position of each adjustment image from a reference position in which each adjustment image should be formed is calculated, a tilt and an intercept of a regression line that uses the reference positions and the calculated shifts as variables are calculated, and a shift in the main scanning direction and a shift in a sub-scanning direction are determined based on the calculated tilt and intercept.
摘要翻译：图像形成装置包括：图像形成单元，其形成多个彩色分量图像重叠的彩色图像; 以及形成控制单元，其允许图像形成单元形成用于调整各个颜色分量图像的形成位置的图像。形成控制单元允许图像形成单元针对每种颜色形成相对于主扫描方向具有不同倾斜的多个调整图像。计算出每个调整图像的检测位置从其中应形成每个调整图像的参考位置的偏移，计算使用参考位置和计算的位移作为变量的回归线的倾斜和截距，并且基于计算出的倾斜和截距来确定主扫描方向上的偏移和副扫描方向的偏移。

10. 发明申请

US20090255359A1 ROTATIONAL DRIVE TRANSMISSION MECHANISM AND IMAGE FORMING APPARATUS USING THE SAME 审中-公开
标题翻译：旋转驱动传动机构和使用其的图像形成装置
公开(公告)号：US20090255359A1
公开(公告)日：2009-10-15
申请号：US12413693
申请日：2009-03-30
申请人： Tetsushi ITO , Yoshikazu Harada , Norio Tomita , Noriaki Taguchi , Shuichi Mochizuki
发明人： Tetsushi ITO , Yoshikazu Harada , Norio Tomita , Noriaki Taguchi , Shuichi Mochizuki
IPC分类号： F16H55/08 , G03G15/00
CPC分类号： G03G21/186 , G03G15/757 , G03G21/1647 , G03G2221/1657 , Y10T74/19972
摘要： A rotational drive transmission mechanism used in an image forming apparatus for transmitting rotational drive force using an internal gear and an external gear having involute tooth profiles, includes photoreceptor drum drive couplings for transmitting rotational drive force to photoreceptor drums and a transfer drive coupling for transmitting rotational drive force to an intermediate transfer belt drive roller. The internal gears provided for these are so formed that all the drive vectors of the rotational drive force transmitted to the teeth of either the internal gear or the external gear in mesh with the internal gear, are made uniform so as to be oriented either outwards from the center of the rotational axis or inwards toward the center of the rotational axis, equivalently relative to the center of the rotational axis.
摘要翻译：在用于使用内齿轮和具有渐开线齿廓的外齿轮传递旋转驱动力的图像形成装置中使用的旋转驱动传动机构包括用于将旋转驱动力传递到感光鼓的感光鼓驱动联接器和用于传递旋转的传送驱动联接器对中间转印带驱动辊的驱动力。为这些设计的内齿轮被形成为使得传递到与内齿轮啮合的内齿轮或外齿轮的齿的旋转驱动力的所有驱动矢量被制成均匀的，以便从旋转轴线的中心或向着相对于旋转轴线的中心的旋转轴线的中心向内。

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