公开(公告)号：US5565963A

公开(公告)日：1996-10-15

申请号：US423551

申请日：1995-04-17

申请人： Mitsuji Tsujita ,  Nariaki Tanaka ,  Yuji Tanaka ,  Takashi Terada ,  Takuji Terada

发明人： Mitsuji Tsujita ,  Nariaki Tanaka ,  Yuji Tanaka ,  Takashi Terada ,  Takuji Terada

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

CPC分类号： G03G15/5037 ,  G03G15/0266

摘要： An image forming apparatus includes a rotatable photosensitive member including a conductive base and a photosensitive layer located on a surface of the base; a charging device located in the vicinity of the photosensitive member for charging the photosensitive layer; a charge removing device located upstream with respect to the charging device in a rotation direction of the photosensitive member for radiating light toward the photosensitive layer prior to charging performed by the charging device to uniformize a surface potential of the photosensitive layer; a light radiation device for radiating light to a charging area of the photosensitive layer in the state of being charged by the charging device and for adjusting the amount of the light to be radiated; an exposing device for radiating light corresponding to an image toward the photosensitive layer in the state of being charged; a developing device located downstream with respect to the exposing device in the rotation direction of the photosensitive member; a change detection device for detecting a change in at least one of a charging potential of the photosensitive layer and a sensitivity of the photosensitive layer; and a compensation device for compensating for the change by adjusting the amount of the light radiated toward the charging area by the light radiation device based on results obtained by the change detection device.

摘要翻译： 图像形成装置包括可旋转感光构件，其包括导电基底和位于基底表面上的感光层; 位于感光构件附近的用于对感光层充电的充电装置; 电荷去除装置，其在所述感光构件的旋转方向上位于所述充电装置的上游，用于在由所述充电装置进行充电之前向所述感光层照射光以使所述感光层的表面电位均匀化; 光放射装置，用于在由充电装置充电的状态下将光照射到感光层的充电区域并用于调节要辐射的光量; 曝光装置，用于在被充电的状态下将对应于图像的光照射到感光层; 显影装置，其在感光构件的旋转方向上相对于曝光装置位于下游; 用于检测感光层的充电电位和感光层的灵敏度中的至少一个的变化的变化检测装置; 以及补偿装置，用于通过基于由变化检测装置获得的结果调节由光辐射装置朝向充电区域辐射的光量来补偿该变化。

公开(公告)号：US5750308A

公开(公告)日：1998-05-12

申请号：US754624

申请日：1996-11-21

申请人： Mitsuji Tsujita ,  Nariaki Tanaka ,  Takashi Terada ,  Takuji Terada ,  Ichiro Yamazato ,  Eiichi Miyamoto

发明人： Mitsuji Tsujita ,  Nariaki Tanaka ,  Takashi Terada ,  Takuji Terada ,  Ichiro Yamazato ,  Eiichi Miyamoto

IPC分类号： G03G13/22 ,  G03G15/06 ,  G03G13/06

CPC分类号： G03G15/065 ,  G03G13/22

摘要： An electrophotographic method in which an electrostatic latent image on a single-layer organic photosensitive material is developed while applying a developing bias voltage of the same polarity as the polarity of the charge of the photosensitive material. The developing bias voltage is set to be higher than a potential that corresponds to a point where a curve approximating the zone of a large amount of exposure to light and a curve approximating the zone of a small amount of exposure to light in a light decay characteristics curve intersect each other.

摘要翻译： 一种电子照相方法，其中在施加与感光材料的电荷的极性相同极性的显影偏压的同时显影单层有机感光材料上的静电潜像。 显影偏压被设定为高于对应于近似于大量曝光区域的曲线和接近光衰减特性中少量曝光区域的曲线的点的电位 曲线相交。

公开(公告)号：US5530525A

公开(公告)日：1996-06-25

申请号：US353109

申请日：1994-12-09

申请人： Mitsuji Tsujita ,  Masahiko Maeda ,  Kazuhiro Mizude ,  Tomohiro Tsutano ,  Masao Uyama ,  Nariaki Tanaka ,  Takashi Terada ,  Takuji Terada

发明人： Mitsuji Tsujita ,  Masahiko Maeda ,  Kazuhiro Mizude ,  Tomohiro Tsutano ,  Masao Uyama ,  Nariaki Tanaka ,  Takashi Terada ,  Takuji Terada

IPC分类号： G03G5/06 ,  G03G21/08 ,  G03G15/02

CPC分类号： G03G21/08 ,  G03G5/0681

摘要： An image forming apparatus includes a charge removing device for removing the residual charge on a photosensitive film. The light emitted from an optical source of the charge removing device is selected from the range between the wavelengths which correspond to half of the maximum absorbance in a light absorbance characteristic of the photosensitive film. Since carrier generation does not occur by the light emitted by the charge removing device, the charging ability and the charge retaining ability of the photosensitive film are improved, and the image quality is significantly improved.

摘要翻译： 图像形成装置包括用于去除感光膜上的残留电荷的电荷去除装置。 从电荷去除装置的光源发射的光从在感光膜的吸光度特性中与最大吸光度的一半相对应的波长之间的范围内选择。 由于由电荷去除装置发出的光不会发生载流子的产生，所以提高了感光膜的充电能力和电荷保持能力，显着提高了图像质量。