公开(公告)号：US06928253B2

公开(公告)日：2005-08-09

申请号：US10691504

申请日：2003-10-24

申请人： Masaki Ojima ,  Masahide Kinoshita ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

发明人： Masaki Ojima ,  Masahide Kinoshita ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

IPC分类号： G03G15/01 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G21/0064

摘要： An image forming apparatus includes a photosensitive drum, a charging roller, a transfer roller, and a toner charging brush, wherein the toner charging brush reciprocates in a longitudinal direction of the photosensitive drum. In the image forming apparatus, when a number of rotations per a unit time of the image bearing member is assumed to be “a” and a number of times of reciprocation per unit time of the toner charging brush is assumed to be “b”, assuming that R=b/a, R is set to be in a range of 1/25≦R≦3. However, R=m/n (m and n are integers of 5 or less) is excluded. Consequently, generation of a periodic attachment pattern appearing on the photosensitive drum is eliminated.

摘要翻译： 图像形成装置包括感光鼓，充电辊，转印辊和调色剂充电刷，其中调色剂充电刷在感光鼓的纵向方向上往复运动。 在图像形成装置中，当将图像承载部件的每单位时间的转数假设为“a”，并且将调色剂充电刷的每单位时间的往复次数假设为“b”时， 假设R = b / a，R被设定在1/25 <= R <3的范围内。 然而，排除R = m / n（m和n为5以下的整数）。 因此，消除了出现在感光鼓上的周期性附着图案的产生。

公开(公告)号：US07286788B2

公开(公告)日：2007-10-23

申请号：US11199121

申请日：2005-08-09

申请人： Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

发明人： Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

IPC分类号： G03G21/00

CPC分类号： G03G15/0216 ,  G03G2215/021

摘要： An image forming apparatus includes a photosensitive drum, a charge roller for charging the photosensitive drum, a developing device for developing an electrostatic latent image formed on the charged photosensitive drum with a developer, a first auxiliary charging brush which is located upstream from the charge roller in a movement direction of a surface of the photosensitive drum and applies a voltage of a polarity opposite to a normal polarity of a polarity opposite to a normal polarity of the developer, and a second auxiliary charging brush which is located downstream from the first auxiliary charging brush and upstream from the charge roller and applies a voltage of a polarity identical to the normal polarity of the developer. In the image forming apparatus, the first auxiliary charging brush is supplied with an AC voltage to be improved in recovery performance of a transfer residual developer, and contamination of charging means can be prevented.

摘要翻译： 图像形成装置包括感光鼓，用于对感光鼓充电的充电辊，用显影剂使形成在带电感光鼓上的静电潜像显影的显影装置，位于充电辊上游的第一辅助充电刷 在感光鼓的表面的移动方向上施加极性与显影剂的正常极性相反的电压，以及位于第一辅助充电刷的下游和充电辊上游的第二辅助充电刷， 施加极性与显影剂的正常极性相同的电压。 在图像形成装置中，向第一辅助充电刷供给交流电压，以提高转印残留显影剂的回收性能，并且可以防止充电装置的污染。

公开(公告)号：US06807384B2

公开(公告)日：2004-10-19

申请号：US10418054

申请日：2003-04-18

申请人： Kazuhiro Okubo ,  Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Masao Uyama

发明人： Kazuhiro Okubo ,  Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Masao Uyama

IPC分类号： G03G1502

CPC分类号： G03G15/0266

摘要： To provide an image forming apparatus improving discharging of a developer from charge providing member for providing charge to the developer remaining on an image bearing member to the image bearing member, the developer is charged from the charge providing member to the image bearing member. When a developer discharging region of the image bearing member is disposed at a charging position, charging member is applied with a voltage having a direct current component of an absolute value equal to or smaller than an absolute value of voltage applied to the charge providing member without an alternating current component.

摘要翻译： 为了提供一种图像形成装置，改善显影剂从充电提供构件的放电，以向图像承载部件上的图像承载部件上剩余的显影剂提供电荷，显影剂从电荷提供部件被充电到图像承载部件。 当图像承载部件的显影剂排出区域被设置在充电位置时，充电部件施加具有等于或小于施加到电荷提供部件的电压的绝对值的绝对值的直流分量的电压而没有 交流分量。

公开(公告)号：US07058338B2

公开(公告)日：2006-06-06

申请号：US11149541

申请日：2005-06-10

申请人： Masaki Ojima ,  Masahide Kinoshita ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

发明人： Masaki Ojima ,  Masahide Kinoshita ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

IPC分类号： G03G21/00

CPC分类号： G03G21/0064

摘要： An image forming apparatus includes a photosensitive drum, a charging roller, a transfer roller, and a toner charging brush, wherein the toner charging brush reciprocates in a longitudinal direction of the photosensitive drum. In the image forming apparatus, when a number of rotations per a unit time of the image bearing member is assumed to be “a” and a number of times of reciprocation per unit time of the toner charging brush is assumed to be “b” assuming that R=b/a, R is set to be in a range of 1/25≦R≦3. However, R=m/n (m and n are integers of 5 or less) is excluded. Consequently, generation of a periodic attachment pattern appearing on the photosensitive drum is eliminated.

摘要翻译： 图像形成装置包括感光鼓，充电辊，转印辊和调色剂充电刷，其中调色剂充电刷在感光鼓的纵向方向上往复运动。 在图像形成装置中，当将图像承载部件的每单位时间的转数假设为“a”，并且假设调色剂充电刷的每单位时间的往复次数假定为“b” R = b / a，R设定在1/25 <= R <3的范围内。 然而，排除R = m / n（m和n为5以下的整数）。 因此，消除了出现在感光鼓上的周期性附着图案的产生。

公开(公告)号：US20050271416A1

公开(公告)日：2005-12-08

申请号：US11199121

申请日：2005-08-09

申请人： Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

发明人： Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

IPC分类号： G03G15/08 ,  G03G15/02 ,  G03G21/00

CPC分类号： G03G15/0216 ,  G03G2215/021

摘要： An image forming apparatus includes a photosensitive drum, a charge roller for charging the photosensitive drum, a developing device for developing an electrostatic latent image formed on the charged photosensitive drum with a developer, a first auxiliary charging brush which is located upstream from the charge roller in a movement direction of a surface of the photosensitive drum and applies a voltage of a polarity opposite to a normal polarity of a polarity opposite to a normal polarity of the developer, and a second auxiliary charging brush which is located downstream from the first auxiliary charging brush and upstream from the charge roller and applies a voltage of a polarity identical to the normal polarity of the developer. In the image forming apparatus, the first auxiliary charging brush is supplied with an AC voltage to be improved in recovery performance of a transfer residual developer, and contamination of charging means can be prevented.

摘要翻译： 图像形成装置包括感光鼓，用于对感光鼓充电的充电辊，用显影剂使形成在带电感光鼓上的静电潜像显影的显影装置，位于充电辊上游的第一辅助充电刷 在感光鼓的表面的移动方向上施加极性与显影剂的正常极性相反的电压，以及位于第一辅助充电刷的下游和充电辊上游的第二辅助充电刷， 施加极性与显影剂的正常极性相同的电压。 在图像形成装置中，向第一辅助充电刷供给交流电压，以提高转印残留显影剂的回收性能，并且可以防止充电装置的污染。

公开(公告)号：US20050271417A1

公开(公告)日：2005-12-08

申请号：US11149541

申请日：2005-06-10

申请人： Masaki Ojima ,  Masahide Kinoshita ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

发明人： Masaki Ojima ,  Masahide Kinoshita ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

IPC分类号： G03G15/01 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G21/0064

摘要： An image forming apparatus includes a photosensitive drum, a charging roller, a transfer roller, and a toner charging brush, wherein the toner charging brush reciprocates in a longitudinal direction of the photosensitive drum. In the image forming apparatus, when a number of rotations per a unit time of the image bearing member is assumed to be “a” and a number of times of reciprocation per unit time of the toner charging brush is assumed to be “b” assuming that R=b/a, R is set to be in a range of ½≦R≦3. However, R=m/n (m and n are integers of 5 or less) is excluded. Consequently, generation of a periodic attachment pattern appearing on the photosensitive drum is eliminated.

摘要翻译： 图像形成装置包括感光鼓，充电辊，转印辊和调色剂充电刷，其中调色剂充电刷在感光鼓的纵向方向上往复运动。 在图像形成装置中，当将图像承载部件的每单位时间的转数假设为“a”，并且假设调色剂充电刷的每单位时间的往复次数假定为“b” R = b / a，R设定在½<= R <= 3的范围内。 然而，排除R = m / n（m和n为5以下的整数）。 因此，消除了出现在感光鼓上的周期性附着图案的产生。

公开(公告)号：US06963707B2

公开(公告)日：2005-11-08

申请号：US10664896

申请日：2003-09-22

申请人： Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

发明人： Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Masao Uyama ,  Kazuhiro Okubo

IPC分类号： G03G15/08 ,  G03G15/02 ,  G03G21/00

CPC分类号： G03G15/0216 ,  G03G2215/021

摘要： An image forming apparatus includes a photosensitive drum, a charge roller for charging the photosensitive drum, a developing device for developing an electrostatic latent image formed on the charged photosensitive drum with a developer, a first auxiliary charging brush which is located upstream from the charge roller in a movement direction of a surface of the photosensitive drum and applies a voltage of a polarity opposite to a normal polarity of a polarity opposite to a normal polarity of the developer, and a second auxiliary charging brush which is located downstream from the first auxiliary charging brush and upstream from the charge roller and applies a voltage of a polarity identical to the normal polarity of the developer. In the image forming apparatus, the first auxiliary charging brush is supplied with an AC voltage to be improved in recovery performance of a transfer residual developer, and contamination of charging means can be prevented.

摘要翻译： 图像形成装置包括感光鼓，用于对感光鼓充电的充电辊，用显影剂使形成在带电感光鼓上的静电潜像显影的显影装置，位于充电辊上游的第一辅助充电刷 在感光鼓的表面的运动方向上施加与极性与显影剂的正常极性相反的正常极性的极性的电压，以及位于第一辅助充电的下游的第二辅助充电刷 并从充电辊上游并施加极性与显影剂的正常极性相同的电压。 在图像形成装置中，向第一辅助充电刷供给交流电压，以提高转印残留显影剂的回收性能，并且可以防止充电装置的污染。

公开(公告)号：US06922539B2

公开(公告)日：2005-07-26

申请号：US10668280

申请日：2003-09-24

申请人： Masao Uyama ,  Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Kazuhiro Okubo

发明人： Masao Uyama ,  Masahide Kinoshita ,  Masaki Ojima ,  Motoki Adachi ,  Kazuhiro Okubo

IPC分类号： G03G15/01 ,  G03G15/02 ,  G03G15/08 ,  G03G15/16 ,  G03G21/00 ,  G03G21/18 ,  G03G15/00

CPC分类号： G03G21/1814 ,  G03G21/0064 ,  G03G2215/0119 ,  G03G2221/183

摘要： A process cartridge includes an image bearing member, a developing device developing an electrostatic image on the member using developer to form a developer image on the member and a developer charger charging residual developer on the member disposed downstream of a transferring position at which the developer image is transferred onto a transfer destination member and upstream of a position at which the electrostatic image is formed on the member with respect to the moving direction of the member. The developer charger is in contact with the member and is movable in the longitudinal direction of the member upon charging the residual developer. L1+d≦L2 when L1 is the developing width of the developing device, L2 is the contact width of the developer charger with the member, and d is the width of movement of the developer charger in the longitudinal direction of the member.

摘要翻译： 处理盒包括图像承载部件，显影装置使用显影剂在该部件上显影静电图像，以在该部件上形成显影剂图像;以及显影剂充电器，对设置在转印位置下游的部件上的剩余显影剂进行充电， 相对于构件的移动方向被转印到转印目的地构件上并且在构件上形成静电图像的位置的上游。 显影剂充电器与构件接触并且在对残余显影剂充电时可沿构件的纵向方向移动。 当L 1是显影装置的显影宽度时，L 1+ d <= L 2，L 2是显影剂充电器与构件的接触宽度，d是显影剂充电器在纵向上的移动宽度 会员

公开(公告)号：US07162167B2

公开(公告)日：2007-01-09

申请号：US10807319

申请日：2004-03-24

申请人： Kenichi Iida ,  Masao Uyama ,  Masahide Kinoshita ,  Motoki Adachi

发明人： Kenichi Iida ,  Masao Uyama ,  Masahide Kinoshita ,  Motoki Adachi

IPC分类号： G03G15/08

CPC分类号： G03G15/0849 ,  G03G15/0856

摘要： In adjustment control of a developing device, the number of printed sheets and the toner consumption amount per sheet are calculated. If the accumulated toner consumption amount is smaller than a predetermined amount when a predetermined number of sheets are printed, the developing device is caused to supply a developer in a predetermined amount corresponding to the difference, thereby performing development adjustment of the developing device.

摘要翻译： 在显影装置的调节控制中，计算印张的数量和每张纸的调色剂消耗量。 如果当打印预定数量的纸张时累积的调色剂消耗量小于预定量，则使显影装置以与该差异相对应的预定量供应显影剂，从而进行显影装置的显影调整。

公开(公告)号：US06947677B2

公开(公告)日：2005-09-20

申请号：US10370489

申请日：2003-02-24

申请人： Masao Uyama ,  Masahide Kinoshita ,  Atsushi Numagami ,  Kazunari Murayama ,  Seiji Yamaguchi ,  Takahito Ueno

发明人： Masao Uyama ,  Masahide Kinoshita ,  Atsushi Numagami ,  Kazunari Murayama ,  Seiji Yamaguchi ,  Takahito Ueno

IPC分类号： G03G15/08

CPC分类号： G03G15/0849 ,  G03G15/0853

摘要： The image forming apparatus has a developer container containing a developer therein, a developer toner density detecting portion for detecting the permeability of the developer in the developer container to thereby detect toner density, and an engine controller for detecting whether the image forming apparatus has gone wrong, on the basis of the toner density detected by the developer toner density detecting portion. Thereby, it becomes possible to detect the failure of a developing apparatus reliably and early by an inexpensive construction.

摘要翻译： 图像形成装置具有含有显影剂的显影剂容器，用于检测显影剂容器中的显影剂的渗透性从而检测调色剂浓度的显影剂调色剂浓度检测部分，以及用于检测图像形成装置是否出错的发动机控制器 基于由显影剂调色剂浓度检测部分检测的调色剂浓度。 由此，可以通过廉价的结构可靠且早地检测显影装置的故障。