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1. 发明授权

US07899352B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07899352B2
公开(公告)日：2011-03-01
申请号：US12072748
申请日：2008-02-28
申请人： Norio Tomiie , Shinki Miyaji , Yoshihiko Maruyama
发明人： Norio Tomiie , Shinki Miyaji , Yoshihiko Maruyama
IPC分类号： G03G15/00 , G03G15/02
CPC分类号： G03G15/0266 , G03G2215/021
摘要： An aspect of the invention provides a charging control device of a color image forming apparatus, and the charging control device can properly control a charging potential of an image bearing body such that fog and uneven density are not generated even in a low-temperature environment. The image forming apparatus includes a high-voltage generation circuit 91 which applies an oscillating voltage to the charging member 42 disposed in contact with an image bearing body 41, a direct-current voltage and an alternating-current voltage being superimposed to form the oscillating voltage; a current detection unit 92 which detects a direct current value passed from the charging member 42 to the image bearing body 41; and a voltage control unit 96 which controls the alternating-current voltage such that the detected direct-current value is maintained in a target current range. The image forming apparatus also includes an aging control unit 95 to perform running-in. The aging control unit 95 rotates and drives the image bearing body 41 while retaining the alternating-current voltage and the direct-current voltage at previously-set predetermined voltages.
摘要翻译：本发明的一个方面提供一种彩色图像形成装置的充电控制装置，并且充电控制装置可以适当地控制图像承载体的充电电位，使得即使在低温环境中也不产生灰雾和不均匀的密度。图像形成装置包括对与图像承载体41接触设置的充电构件42施加振荡电压的高电压产生电路91，叠加的直流电压和交流电压以形成振荡电压 ; 电流检测单元92，其检测从充电构件42到图像承载体41的直流值; 以及电压控制单元96，其控制交流电压，使得检测到的直流值保持在目标电流范围内。图像形成装置还包括执行输入的老化控制单元95。老化控制单元95旋转并驱动图像承载体41，同时将交流电压和直流电压保持在预先设定的预定电压。

2. 发明申请

US20080044194A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20080044194A1
公开(公告)日：2008-02-21
申请号：US11823793
申请日：2007-06-28
申请人： Shinki Miyaji , Yoshihiko Maruyama
发明人： Shinki Miyaji , Yoshihiko Maruyama
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G15/5037
摘要： An image forming apparatus uses a charging roller to charge the surface of a photosensitive member to a predetermined potential. A current detector detects charging current when the charging bias is applied. A bias corrector corrects the charging bias and a storage stores a target charging current value when the photosensitive member is charged to a required potential. The bias corrector performs two corrections. The first correction compares a charging current value with a stored target charging current value, and determines a new bias based on the comparison. The second correction determines whether the bias obtained by the first correction is at a predetermined level or a higher level, and when the corrected charging bias is at the higher level, changes the target charging current value in accordance with the corrected charging bias and obtains a new charging bias on the basis of the changed target charging current value.
摘要翻译：图像形成装置使用充电辊将感光构件的表面充电至预定电位。当施加充电偏压时，电流检测器检测充电电流。偏置校正器校正充电偏压，并且当感光构件被充电到所需电位时，存储器存储目标充电电流值。偏置校正器执行两个校正。第一校正将充电电流值与存储的目标充电电流值进行比较，并且基于该比较确定新的偏置。第二校正确定通过第一校正获得的偏置是否处于预定电平或更高电平，并且当校正的充电偏压处于较高电平时，根据校正的充电偏压改变目标充电电流值，并获得基于改变的目标充电电流值的新充电偏差。

3. 发明授权

US07734212B2 Image forming apparatus with a brush roller that rotates and reciprocates 有权
标题翻译：具有旋转和往复运动的刷辊的图像形成装置
公开(公告)号：US07734212B2
公开(公告)日：2010-06-08
申请号：US11703376
申请日：2007-02-07
申请人： Shinki Miyaji , Yoshihiko Maruyama , Koji Shin
发明人： Shinki Miyaji , Yoshihiko Maruyama , Koji Shin
IPC分类号： G03G15/02
CPC分类号： G03G15/0225 , G03G2215/025
摘要： An image forming apparatus is provided with a rotary image bearing member; a charging roller for charging the outer circumferential surface of the image bearing member by rotating in contact with the image bearing member; a brush roller for cleaning adhered matters on the outer circumferential surface of the charging roller by being held in contact with the charging roller due to its own weight and rotating; a driving mechanism for drivingly rotating the brush roller to have a linear velocity difference to the charging roller; and a moving mechanism for reciprocating the brush roller along the longitudinal direction thereof.
摘要翻译：图像形成装置设置有旋转图像承载部件; 充电辊，用于通过与图像承载部件接触旋转而对图像承载部件的外周表面进行充电; 刷辊，用于通过与充电辊保持接触，由于其自重和旋转而在充电辊的外周表面上清洁附着物; 用于驱动所述刷辊旋转以对所述充电辊具有线速度差的驱动机构; 以及用于使刷辊沿着其纵向方向往复运动的移动机构。

4. 发明授权

US07643765B2 Image forming apparatus that charges the surface of a photosensitive member to a predetermined potential 有权
标题翻译：将感光构件的表面充电至预定电位的图像形成装置
公开(公告)号：US07643765B2
公开(公告)日：2010-01-05
申请号：US11823787
申请日：2007-06-28
申请人： Shinki Miyaji , Yoshihiko Maruyama
发明人： Shinki Miyaji , Yoshihiko Maruyama
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G2215/021
摘要： An image forming apparatus charges the surface of a photosensitive member to a predetermined potential. A current detector detects a charging current when the charging bias is applied. A storage stores a target charging current value when the photosensitive member is charged to a required potential. A usage acquiring portion acquires information relating to usage of the charging roller. A bias corrector performs first and second corrections. The first correction compares a charging current value with a stored target charging current value and determines a new charging bias based on the comparison. The second correction determines whether usage of the charging roller is a predetermined first amount or a greater amount based on acquired usage information, and when the usage is the greater amount, changes the target charging current value in accordance with the usage amount and obtains a new charging bias based on the changed target charging current value.
摘要翻译：图像形成装置将感光构件的表面充电至预定电位。当施加充电偏压时，电流检测器检测充电电流。当感光构件被充电到所需电位时，存储器存储目标充电电流值。使用取得部获取与充电辊的使用有关的信息。偏置校正器执行第一和第二校正。第一校正将充电电流值与存储的目标充电电流值进行比较，并且基于该比较确定新的充电偏压。第二校正基于获取的使用信息确定充电辊的使用是否为预定的第一量或更大的量，并且当使用量较大时，根据使用量改变目标充电电流值，并获得新的基于改变的目标充电电流值的充电偏压。

5. 发明授权

US07590365B2 Image forming apparatus with charging bias correcting portion for correcting a charging bias of a charging roller 有权
标题翻译：具有用于校正充电辊的充电偏压的充电偏压校正部分的图像形成装置
公开(公告)号：US07590365B2
公开(公告)日：2009-09-15
申请号：US11823793
申请日：2007-06-28
申请人： Shinki Miyaji , Yoshihiko Maruyama
发明人： Shinki Miyaji , Yoshihiko Maruyama
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G15/5037
摘要： An image forming apparatus uses a charging roller to charge the surface of a photosensitive member to a predetermined potential. A current detector detects charging current when the charging bias is applied. A bias corrector corrects the charging bias and a storage stores a target charging current value when the photosensitive member is charged to a required potential. The bias corrector performs two corrections. The first correction compares a charging current value with a stored target charging current value, and determines a new bias based on the comparison. The second correction determines whether the bias obtained by the first correction is at a predetermined level or a higher level, and when the corrected charging bias is at the higher level, changes the target charging current value in accordance with the corrected charging bias and obtains a new charging bias on the basis of the changed target charging current value.
摘要翻译：图像形成装置使用充电辊将感光构件的表面充电至预定电位。当施加充电偏压时，电流检测器检测充电电流。偏置校正器校正充电偏压，并且当感光构件被充电到所需电位时，存储器存储目标充电电流值。偏置校正器执行两个校正。第一校正将充电电流值与存储的目标充电电流值进行比较，并且基于该比较确定新的偏置。第二校正确定通过第一校正获得的偏置是否处于预定电平或更高电平，并且当校正的充电偏压处于较高电平时，根据校正的充电偏压改变目标充电电流值，并获得基于改变的目标充电电流值的新充电偏差。

6. 发明申请

US20080003004A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20080003004A1
公开(公告)日：2008-01-03
申请号：US11823787
申请日：2007-06-28
申请人： Shinki Miyaji , Yoshihiko Maruyama
发明人： Shinki Miyaji , Yoshihiko Maruyama
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G2215/021
摘要： An image forming apparatus charges the surface of a photosensitive member to a predetermined potential. A current detector detects a charging current when the charging bias is applied. A storage stores a target charging current value when the photosensitive member is charged to a required potential. A usage acquiring portion acquires information relating to usage of the charging roller. A bias corrector performs first and second corrections. The first correction compares a charging current value with a stored target charging current value and determines a new charging bias based on the comparison. The second correction determines whether usage of the charging roller is a predetermined first amount or a greater amount based on acquired usage information, and when the usage is the greater amount, changes the target charging current value in accordance with the usage amount and obtains a new charging bias based on the changed target charging current value.
摘要翻译：图像形成装置将感光构件的表面充电至预定电位。当施加充电偏压时，电流检测器检测充电电流。当感光构件被充电到所需电位时，存储器存储目标充电电流值。使用取得部获取与充电辊的使用有关的信息。偏置校正器执行第一和第二校正。第一校正将充电电流值与存储的目标充电电流值进行比较，并且基于该比较确定新的充电偏压。第二校正基于获取的使用信息确定充电辊的使用是否为预定的第一量或更大的量，并且当使用量较大时，根据使用量改变目标充电电流值，并获得新的基于改变的目标充电电流值的充电偏压。

7. 发明申请

US20080304853A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20080304853A1
公开(公告)日：2008-12-11
申请号：US12072748
申请日：2008-02-28
申请人： Norio Tomiie , Shinki Miyaji , Yoshihiko Maruyama
发明人： Norio Tomiie , Shinki Miyaji , Yoshihiko Maruyama
IPC分类号： G03G15/00
CPC分类号： G03G15/0266 , G03G2215/021
摘要： An aspect of the invention provides a charging control device of a color image forming apparatus, and the charging control device can properly control a charging potential of an image bearing body such that fog and uneven density are not generated even in a low-temperature environment. The image forming apparatus includes a high-voltage generation circuit 91 which applies an oscillating voltage to the charging member 42 disposed in contact with an image bearing body 41, a direct-current voltage and an alternating-current voltage being superimposed to form the oscillating voltage; a current detection unit 92 which detects a direct current value passed from the charging member 42 to the image bearing body 41; and a voltage control unit 96 which controls the alternating-current voltage such that the detected direct-current value is maintained in a target current range. The image forming apparatus also includes an aging control unit 95 to perform running-in. The aging control unit 95 rotates and drives the image bearing body 41 while retaining the alternating-current voltage and the direct-current voltage at previously-set predetermined voltages.
摘要翻译：本发明的一个方面提供一种彩色图像形成装置的充电控制装置，并且充电控制装置可以适当地控制图像承载体的充电电位，使得即使在低温环境中也不产生灰雾和不均匀的密度。图像形成装置包括对与图像承载体41接触设置的充电构件42施加振荡电压的高电压产生电路91，叠加的直流电压和交流电压以形成振荡电压 ; 电流检测单元92，其检测从充电构件42到图像承载体41的直流值; 以及电压控制单元96，其控制交流电压，使得检测到的直流值保持在目标电流范围内。图像形成装置还包括执行输入的老化控制单元95。老化控制单元95旋转并驱动图像承载体41，同时将交流电压和直流电压保持在预先设定的预定电压。

8. 发明申请

US20070189801A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20070189801A1
公开(公告)日：2007-08-16
申请号：US11703376
申请日：2007-02-07
申请人： Shinki Miyaji , Yoshihiko Maruyama , Koji Shin
发明人： Shinki Miyaji , Yoshihiko Maruyama , Koji Shin
IPC分类号： G03G15/02
CPC分类号： G03G15/0225 , G03G2215/025
摘要： An image forming apparatus is provided with a rotary image bearing member; a charging roller for charging the outer circumferential surface of the image bearing member by rotating in contact with the image bearing member; a brush roller for cleaning adhered matters on the outer circumferential surface of the charging roller by being held in contact with the charging roller due to its own weight and rotating; a driving mechanism for drivingly rotating the brush roller to have a linear velocity difference to the charging roller; and a moving mechanism for reciprocating the brush roller along the longitudinal direction thereof.
摘要翻译：图像形成装置设置有旋转图像承载部件; 充电辊，用于通过与图像承载部件接触旋转而对图像承载部件的外周表面进行充电; 刷辊，用于通过与充电辊保持接触，由于其自重和旋转而在充电辊的外周表面上清洁附着物; 用于驱动所述刷辊以使所述充电辊具有线速度差的驱动机构; 以及用于使刷辊沿着其纵向方向往复运动的移动机构。

9. 发明授权

US07756461B2 Image forming apparatus with polishing roller that changes rotational direction during a polishing mode 有权
标题翻译：具有在抛光模式下改变旋转方向的抛光辊的图像形成装置
公开(公告)号：US07756461B2
公开(公告)日：2010-07-13
申请号：US11985470
申请日：2007-11-15
申请人： Yojiro Sato , Yoshihiko Maruyama
发明人： Yojiro Sato , Yoshihiko Maruyama
IPC分类号： G03G21/00
CPC分类号： G03G21/0058 , G03G21/0094
摘要： An image forming apparatus has a photosensitive drum (2), a transfer roller (5) above photosensitive drum (2), a transport line (14) that passes between photosensitive drum (2) and the transfer roller (5), a cleaning unit (6) below the transport line (14) and downstream of the photosensitive drum (2), and provided with a cleaning blade (11) and a polishing roller (10) to polish a surface of photosensitive drum (2), and rotation-direction selector (21) to selectively change a rotation direction of the polishing roller (10). The polishing roller (10) is above the cleaning blade (11) and rotationally upstream of photosensitive drum (2) relative to the cleaning blade (11). The rotation-direction selector (21) allows the polishing roller (10) to rotate in the same direction as the photosensitive drum (2) during a polishing mode for polishing the surface of photosensitive drum (2), and in a reverse direction at other times.
摘要翻译：图像形成装置在感光鼓（2）上方具有感光鼓（2），转印辊（5），在感光鼓（2）和转印辊（5）之间通过的输送线（14），清洁单元（14）的下方和感光鼓（2）的下游，并设置有清洁刮板（11）和抛光辊（10）以磨光感光鼓（2）的表面，方向选择器（21），以选择性地改变抛光辊（10）的旋转方向。抛光辊（10）相对于清洁刮板（11）在清洁刮板（11）的上方并且在感光鼓（2）的上游旋转。旋转方向选择器（21）允许抛光辊（10）在用于抛光感光鼓（2）的表面的抛光模式期间沿与感光鼓（2）相同的方向旋转，并且在其他方向上以相反方向旋转次

10. 发明授权

US07899348B2 Image forming apparatus with developing bias correcting portion that changes a developing density adjustment pattern 有权
标题翻译：具有改变显影浓度调整图案的显影偏压修正部分的图像形成装置
公开(公告)号：US07899348B2
公开(公告)日：2011-03-01
申请号：US11964955
申请日：2007-12-27
申请人： Yoshihiko Maruyama , Keisuke Isoda
发明人： Yoshihiko Maruyama , Keisuke Isoda
IPC分类号： G03G15/00 , G03G15/08
CPC分类号： G03G15/5037 , G03G15/065 , G03G2215/00037 , G03G2215/00054
摘要： A controller takes in a detection signal indicating the surface electrical potential of a photoconductive drum (7) from a surface electrical potential sensor (step #1), and determines whether the surface electrical potential is smaller than the predetermined threshold value (step #2). As a result, when the controller (6) determines that the surface electrical potential is equal to or greater than the predetermined threshold value (NO in step #2), it uses the low print rate density patch to execute the density adjustments in accordance with the toner density and the developing bias associated with the density patch (step #3). When the controller (6) determines that the surface electrical potential is smaller than the predetermined threshold value (NO in step #1), it uses a high print rate density patch to execute the density adjustments in accordance with the toner density and the developing bias associated with the density patch (step #4).
摘要翻译：控制器从表面电位传感器接收表示感光鼓（7）的表面电位的检测信号（步骤＃1），并确定表面电位是否小于预定阈值（步骤＃2）。结果，当控制器（6）确定表面电位等于或大于预定阈值（步骤＃2中为“否”）时，使用低打印速率密度贴片来执行根据调色剂密度和与密度贴片相关的显影偏压（步骤＃3）。当控制器（6）确定表面电位小于预定阈值（步骤＃1中为“否”）时，使用高打印速率密度贴片根据调色剂浓度和显影偏压执行浓度调节与步骤＃4相关联。

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