公开(公告)号：US3595647A

公开(公告)日：1971-07-27

申请号：US3595647D

申请日：1968-10-23

申请人： RICOH KK

发明人： YASUMORI AKIYOSHI ,  NAKAMURA MAKOTO ,  TOGUCHI AKIHIRO ,  SOGA SETSUO ,  SHIMIZU SHIZUYA

IPC分类号： C08F20/62 ,  G03G5/05 ,  G03G5/00

CPC分类号： G03G5/0589 ,  C08F20/62 ,  G03G5/0546

摘要： A HIGH-SPEED ELECTROPHOTOGRAPHIC COPYING MATERIAL COMPRISING A SUPPORT AND A PHOTOCONDUCTIVE LAYER FORMED OF A BINDER AND COATED ON ONE SURFACE OF SAID SUPPORT, IN WHICH THE BLINDER COMPRISES A MIXTURE CONSISTING OF (I) A COPOLYMER PRODUCED BY POLYMERIZING ONE OR MORE POLYMERIC MONOMERS CONTAINING NITROGEN AND ONE OR MORE VINYL MONOMERS TOGETHER AND (II) ONE OF THE FOLLOWING; COPOLYMER (1), MIXTURE (2), AND MIXTURE (3): (1) A COPOLYMER OF (B) HYDROXYETHY-(OR METHA) ACRYLATE AND (BI1) VINYL MONOMER HAVING CARBOXYLIC ACID RADICALS. (2) A MIXTURE OF (C) A COPOLYMER FORMED FROM THE ABOVE-MENTIONED CARBOXYLIC ACID MONOMER AND (C-1) THE AFOREMENTIONED VINYL MONOMER, AND AN ORGANIC ACID ANHYDRIDE, (3) A MIXTURE CONSISTING OF THE COPOLYMER AS DESCRIBED IN (1) AND THE ORGANIC ACID ANHYDRIDE MENTIONED IN (2).

公开(公告)号：US3905331A

公开(公告)日：1975-09-16

申请号：US38915173

申请日：1973-08-17

申请人： RICOH KK

发明人： KIMURA TSUGUO ,  SOGA SETSUO ,  WATANABE TOSHIO

IPC分类号： G03G15/10 ,  G03G13/00

CPC分类号： G03G15/10

摘要： A means for precluding trailing of toner images during development in electrophotographic apparatus of the wet type operating at a developing rate of more than 150 mm./sec., which means comprises a pair of rollers disposed along the path of travel of a copy sheet released from the developing liquid tank, one roller made of metal with its peripheral surface arranged to come into contact with the image bearing surface of the copy sheet, the other disposed opposite the metallic roller with its peripheral surface contacting the back surface of the copy sheet. The peripheral surface of the latter roller is of a material having a surface resistance of less than 1 X 107 ohm-cm., and both rollers are maintained at the same potential or grounded, which condition is effective to preclude blurring of a toner image on the copy sheet.

摘要翻译： 一种用于在显影速率超过150mm./sec的湿式电子照相设备的显影期间排除调色剂图像的拖尾的装置，其包括沿着释放的复印纸的行进路径布置的一对辊 从显影液体槽中，一个由金属制成的辊，其周面布置成与复印纸的图像承载表面接触，另一个与金属辊相对设置，其外周表面与复印纸的背面接触。 后一个辊的外周表面是具有小于1×10 7欧姆 - 厘米的表面电阻的材料，并且两个辊保持在相同的电位或接地，该条件有效地防止调色剂图像模糊 复印件。

公开(公告)号：US3697172A

公开(公告)日：1972-10-10

申请号：US3697172D

申请日：1969-07-24

申请人： RICOH KK

发明人： OHTA WASABURO ,  SOGA SETSUO

IPC分类号： G03G5/043 ,  G03G13/04 ,  G03G13/00

CPC分类号： G03G13/04 ,  G03G5/043 ,  Y10S430/102

摘要： There is disclosed herein an electrostatic photography method wherein photoconductive sensitive layers are provided on both sides of a support of a photosensitive plate and the reverse side of said plate is illuminated by light either during or before or after corona discharge, to form reproductions on both sides of the photosensitive plate.

摘要翻译： 这里公开了一种静电摄影方法，其中光电敏感层设置在感光板的支撑体的两侧，并且在电晕放电期间或之后，光的背面被光照射，以在两侧形成复制品 的感光板。