公开(公告)号：US5839018A

公开(公告)日：1998-11-17

申请号：US625997

申请日：1996-04-01

申请人： Masato Asanuma ,  Toshiaki Ino ,  Kanshiro Okamoto ,  Hideji Saiko ,  Toshihisa Ishida ,  Katsuaki Sumida ,  Motoyuki Itoyama ,  Hiroo Naoi ,  Mitsuru Tokuyama ,  Eisaku Hatanaka ,  Yuichiro Takesue ,  Jitsuo Masuda ,  Masayasu Narimatsu ,  Yasuo Kitabatake

发明人： Masato Asanuma ,  Toshiaki Ino ,  Kanshiro Okamoto ,  Hideji Saiko ,  Toshihisa Ishida ,  Katsuaki Sumida ,  Motoyuki Itoyama ,  Hiroo Naoi ,  Mitsuru Tokuyama ,  Eisaku Hatanaka ,  Yuichiro Takesue ,  Jitsuo Masuda ,  Masayasu Narimatsu ,  Yasuo Kitabatake

IPC分类号： G03G15/00 ,  G03G15/08

CPC分类号： G03G15/0849 ,  G03G15/0853 ,  G03G15/5041 ,  G03G2215/00042

摘要： The image forming apparatus of the invention controls the toner density by any one of the following configurations: by correcting the toner density of the developer in association with the agitation total; by controlling a process parameter so that the density of a toner patch formed on the photoreceptor corresponds to a prescribed density value and determining that developing performance of the developer is improved and canceling the toner density correction when the process parameter reaches the prescribed value; by changing the toner density reference value when the variation as to the charger output is equal to or greater than a first predetermined value and maintaining the changed toner density reference value until the variation of the charger output again becomes equal to or greater than the first predetermined value; or by prohibiting toner supply for a constant duration to prevent excessive toner supply if time from the end of the last operation of the developing unit to the start of a next operation, inclusive of the power-activation is equal to or longer the a predetermined period when the developing unit is activated to commence agitation of the developer.

摘要翻译： 本发明的图像形成装置通过以下任何一种配置来控制调色剂浓度：通过与搅拌总量相关联来校正显影剂的调色剂密度; 通过控制处理参数，使得形成在感光体上的调色剂贴片的密度对应于规定的浓度值，并且确定显影剂的显影性能得到改善，并且当处理参数达到规定值时取消调色剂浓度校正; 当相对于充电器输出的变化等于或大于第一预定值并且保持改变的调色剂浓度参考值直到充电器输出的变化再次变为等于或大于第一预定值时，通过改变调色剂浓度基准值 值; 或者如果从显影单元的最后操作结束到下一个操作开始的时间（包括功率激活）等于或更长的预定时间段，则如果从显示单元的最后操作结束到下一个操作开始的时间 当显影单元被激活以开始搅拌显影剂时。