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11.发明授权Color image forming apparatus with a cooling structure for cooling components therein 有权具有冷却组件的冷却结构的彩色图像形成装置公开(公告)号：US06266498B1
公开(公告)日：2001-07-24
申请号：US09504386
申请日：2000-02-15
申请人： Ayumu Oda , Norio Tomita , Yoshikazu Harada , Takayuki Ohno , Toshio Yamanaka , Nobuo Manabe
发明人： Ayumu Oda , Norio Tomita , Yoshikazu Harada , Takayuki Ohno , Toshio Yamanaka , Nobuo Manabe
IPC分类号： G03G1500
CPC分类号： H04N1/00976 , G03G15/0194 , G03G21/206 , G03G2215/0119
摘要： A color image apparatus which has a cooling arrangement to help prevent a plurality of light-scanning units for respective colors therein from being adversely influenced by heat from a thermally fixing unit within the apparatus. In a space portion where all light-scanning units are housed, an air-exhausting fan is provided in the vicinity of the light-scanning unit nearest to the thermally fixing unit, and an air hole is formed at a position farthest from the thermally fixing unit. Additionally a temperature sensor is mounted on the light-scanning unit nearest to the thermally fixing unit. Rotation speed of the air-exhausting fan is controlled so that the temperature detected by the sensor does not exceed a predetermined temperature limit.
摘要翻译： 具有冷却装置的彩色图像装置，其有助于防止其中的各种颜色的多个光扫描单元受到来自装置内的热定影单元的热的不利影响。 在容纳有所有光扫描单元的空间部分中，在最靠近热定影单元的光扫描单元附近设置排气风扇，并且在远离热定影的位置处形成空气孔 单元。 此外，温度传感器安装在最靠近热定影单元的光扫描单元上。 控制排气风扇的旋转速度，使得由传感器检测到的温度不超过预定的温度极限。
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12.发明授权Image forming apparatus including a plurality of closely spaced transfer stations for sequentially transferring aligned, superimposed image portions to a printing medium 有权图像形成设备包括多个紧密间隔的传送站，用于将对准的叠加的图像部分顺序地传送到打印介质公开(公告)号：US06360070B1
公开(公告)日：2002-03-19
申请号：US09431478
申请日：1999-11-01
申请人： Kyosuke Taka , Kazunobu Takahashi , Hidekazu Sakagami , Nobuo Manabe , Yoshikazu Harada , Shoichi Fukutome
发明人： Kyosuke Taka , Kazunobu Takahashi , Hidekazu Sakagami , Nobuo Manabe , Yoshikazu Harada , Shoichi Fukutome
IPC分类号： G03G1501
CPC分类号： G03G15/5008 , G03G15/0194 , G03G2215/00042 , G03G2215/0119
摘要： Assuming the photosensitive drum for black as a reference, the phase of the adjacent photosensitive drum for cyan leads by about 60 deg. Similarly, the phase of the photosensitive drum for magenta leads by about 120 deg., and the phase of the photosensitive drum for yellow leads by about 180 deg. The phase of each photosensitive drum is shifted to thereby make it possible to shift the phase of driving unevenness. By shifting the phase, even the distance between adjoining transfer positions corresponding to the image forming stations is set shorter than the circumference of the photosensitive drum, the variation of each photosensitive drum due to driving unevenness with respect to the printing medium passing through the transfer position can be kept congruent with the others.
摘要翻译： 假设用于黑色的感光鼓作为参考，相邻的青色感光鼓的相位引导约60度。 类似地，用于洋红色的感光鼓的相位相差约120度，并且用于黄色的感光鼓的相位相差约180度。 移动每个感光鼓的相位，从而可以使驱动不均匀的相位移动。 通过移动相位，即使对应于图像形成站的相邻传送位置之间的距离设定为短于感光鼓的周长，由于相对于通过传送位置的打印介质的驱动不均匀而导致的每个感光鼓的变化 可以与其他人保持一致。
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13.发明授权Image forming device and color misregistration correction method for image forming device 有权图像形成装置和图像形成装置的颜色对准校正方法公开(公告)号：US07239833B2
公开(公告)日：2007-07-03
申请号：US10924766
申请日：2004-08-25
IPC分类号： G03G15/01
CPC分类号： G03G15/0131 , G03G15/0194 , G03G15/5058 , G03G2215/00059 , G03G2215/0119 , G03G2215/0132 , G03G2215/0141 , G03G2215/0158 , G03G2215/0164
摘要： An image forming device and a color misregistration correction method allow for stable formation of excellent images with little color misregistration. A reference patch image is formed on a reference photosensitive drum 3, and transferred to a transfer belt 7. A correction patch image is formed on a correction-target photosensitive drum 3, and transferred onto the reference patch image by superimposition. A registration detecting sensor 21 detects a density average value of the reference patch image and the correction patch image. Based on the density average value, a correction value for controlling the correction-target photosensitive drum 3 is calculated, and rotational phase control is performed in accordance with the correction value.
摘要翻译： 图像形成装置和颜色对准校正方法允许稳定地形成具有很少颜色重合不良的优异图像。 参考补片图像形成在参考感光鼓3上，并被转印到转印带7上。 校正补丁图像形成在校正目标感光鼓3上，并通过叠加转移到参考补片图像上。 登记检测传感器21检测参考斑块图像和校正斑块图像的浓度平均值。 基于密度平均值，计算用于控制校正目标感光鼓3的校正值，并根据校正值进行旋转相位控制。
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14.发明申请Image forming device and color misregistration correction method for image forming device 有权图像形成装置和图像形成装置的颜色对准校正方法公开(公告)号：US20050047834A1
公开(公告)日：2005-03-03
申请号：US10924766
申请日：2004-08-25
CPC分类号： G03G15/0131 , G03G15/0194 , G03G15/5058 , G03G2215/00059 , G03G2215/0119 , G03G2215/0132 , G03G2215/0141 , G03G2215/0158 , G03G2215/0164
摘要： An image forming device and a color misregistration correction method allow for stable formation of excellent images with little color misregistration. A reference patch image is formed on a reference photosensitive drum 3, and transferred to a transfer belt 7. A correction patch image is formed on a correction-target photosensitive drum 3, and transferred onto the reference patch image by superimposition. A registration detecting sensor 21 detects a density average value of the reference patch image and the correction patch image. Based on the density average value, a correction value for controlling the correction-target photosensitive drum 3 is calculated, and rotational phase control is performed in accordance with the correction value.
摘要翻译： 图像形成装置和颜色对准校正方法允许稳定地形成具有很少颜色重合不良的优异图像。 参考补片图像形成在参考感光鼓3上，并转印到转印带7上。校正贴片图像形成在校正目标感光鼓3上，并通过叠加转印到参考贴片图像上。 登记检测传感器21检测参考斑块图像和校正斑块图像的浓度平均值。 基于密度平均值，计算用于控制校正目标感光鼓3的校正值，并根据校正值进行旋转相位控制。
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15.发明授权Image forming apparatus and image forming method with sheet slip compensation 有权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
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。
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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。
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公开(公告)号：US07777767B2
公开(公告)日：2010-08-17
申请号：US11592051
申请日：2006-11-01
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。
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18.发明申请ROTATIONAL DRIVE TRANSMISSION MECHANISM AND IMAGE FORMING APPARATUS USING THE SAME 审中-公开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
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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公开(公告)号：US20090180803A1
公开(公告)日：2009-07-16
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： G03G15/16
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，用于根据光学传感器的输出检测快门的打开和关闭，并根据检测结果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。
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公开(公告)号：US20090080914A1
公开(公告)日：2009-03-26
申请号：US12207697
申请日：2008-09-10
IPC分类号： G03G15/00
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/00063 , G03G2215/0158
摘要： A sub CPU of an image forming section forms a toner image based on test line data on an intermediate transfer belt, detects an inclination of the formed toner image for each color component, calculates an adjustment indicative value for correcting the detected inclination for each color component, and outputs the adjustment indicative values to the BK adjusting section, C adjusting section, M adjusting section, and Y adjusting section, respectively, of an inclination adjusting section. The BK adjusting section, C adjusting section, M adjusting section, and Y adjusting section generate, based on the respective adjustment indicative values obtained from the sub CPU, adjustment amounts for an inclination adjustment process to be executed on image data, execute the inclination adjustment process based on the generated adjustment amounts, and output the obtained image data to the respective LDs of an exposure unit.
摘要翻译： 图像形成部的副CPU基于中间转印带上的测试线数据形成调色剂图像，检测所形成的调色剂图像对于每种颜色成分的倾斜度，计算用于校正每种颜色成分的检测倾斜度的调整指示值 ，并将调整指示值分别输出到倾斜调节部分的BK调节部分，C调节部分，M调节部分和Y调节部分。 BK调整部，C调整部，M调整部，Y调整部基于从副CPU获得的各调整指示值生成对图像数据执行的倾斜调整处理的调整量，执行倾斜调整 基于生成的调整量进行处理，并将所获得的图像数据输出到曝光单元的各个LD。
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