公开(公告)号：EP1473602A4

公开(公告)日：2010-01-13

申请号：EP03701895

申请日：2003-01-28

申请人： PFU LTD

发明人： NAGATA ISAO ,  SAKAI SATOSHI ,  HONGAWA HIRONAGA ,  OKANO SHIGEHARU ,  YAMANISHI ERI ,  YAMASAKU NORIHIRO

IPC分类号： G03G15/16 ,  G03G21/00 ,  G03G15/01 ,  G03G15/10 ,  G03G21/10

CPC分类号： G03G15/161 ,  G03G21/0088 ,  G03G2215/0103 ,  G03G2215/1661

公开(公告)号：EP1420306A4

公开(公告)日：2009-11-25

申请号：EP02755810

申请日：2002-08-05

申请人： PFU LTD

发明人： SAKAI SATOSHI ,  NAGATA ISAO ,  HONGAWA HIRONAGA ,  OKANO SHIGEHARU ,  YAMANISHI ERI ,  NAKASHIMA YUTAKA ,  INAMOTO AKIHIKO ,  NISHIKAWA TADASHI ,  YAMASAKU NORIHIRO

IPC分类号： G03G15/11 ,  G03G15/10

CPC分类号： G03G15/11 ,  G03G2215/0106 ,  G03G2215/0119 ,  G03G2215/0187

公开(公告)号：EP1602987A4

公开(公告)日：2006-05-17

申请号：EP04718720

申请日：2004-03-09

申请人： PFU LTD

发明人： YAMASAKU NORIHIRO

IPC分类号： G03G15/10 ,  G03G15/11 ,  G03G21/10

CPC分类号： G03G15/11 ,  G03G15/104 ,  G03G21/10 ,  G03G2221/1621

摘要： A liquid toner which remains on the surface of a photoconductor drum (2) after a toner image has been transferred to an intermediate transfer body (1) is collected in a recovery pot (6a), from which it is fed to a carrier pot (20) for storage therein, and it is fed to a toner concentration adjusting device (10) according to a separate instruction. Further, the remaining liquid toner supplied to the photoconductive drum (2) from a developing roller (3) is collected in a recovery pot (6b) and directly fed to the toner concentration adjusting device (10). In the toner concentration adjusting device (10), the liquid toner after having its concentration adjusted is fed to a supply pot (7), from which it is supplied to a developing roller (3) through a supply roller (4) and used for development of electrostatic latent images. The toner concentration adjusting device (10) is a concentration adjusting pot having incorporated therein a carrier extraction mechanism, a toner replenishing mechanism, a toner concentration detecting mechanism, etc.