EP 0779560 A3 20001004 - Electrostatic latent image developing method and apparatus

Title (en)

Electrostatic latent image developing method and apparatus

Title (de)

Verfahren und Vorrichtung zum Entwickeln eines elektrostatischen latenten Bildes

Title (fr)

Procédé et appareil de développement d'une imgae latente électrostatique

Publication

EP 0779560 A3 20001004 (DE)

Application

EP 96119782 A 19961210

Priority

DE 19546248 A 19951212

Abstract (en)

[origin: DE19546248A1] The method operates on the surface (4) of a cylinder (2) to which charged dielectric ink particles (6) are transferred. They are transferred through a gap (5) under the surface (3) of another cylinder (1). The gap is largely filled with loose particles moving under the influence of three successive voltage differences. The first voltage difference (U0) between the developing cylinder and blank areas of the image is substantially zero. The next (Umax) is sufficient to separate particles completely from the image carrier in these areas. The final difference has an intermediate value (UE).

IPC 1-7

G03G 13/08; G03G 15/08

IPC 8 full level

G03G 13/08 (2006.01); G03G 15/06 (2006.01); G03G 15/08 (2006.01)

CPC (source: EP KR US)

G03G 13/08 (2013.01 - EP KR US); G03G 15/0806 (2013.01 - EP US); G03G 15/0818 (2013.01 - EP US); Y10S 101/37 (2013.01 - EP US)

Citation (search report)

[XY] US 4473627 A 19840925 - KANBE JUNICHIRO [JP], et al
[Y] EP 0295364 A2 19881221 - KUEHNLE MANFRED R
[A] EP 0661607 A1 19950705 - CANON KK [JP]
[Y] PATENT ABSTRACTS OF JAPAN vol. 017, no. 118 (P - 1500) 11 March 1993 (1993-03-11)

Designated contracting state (EPC)

DE ES FR GB NL

DOCDB simple family (publication)

DE 19546248 A1 19970619; CN 1158437 A 19970903; DE 59609560 D1 20020919; EP 0779560 A2 19970618; EP 0779560 A3 20001004; EP 0779560 B1 20020814; JP H09179401 A 19970711; KR 100236262 B1 19991215; KR 970049100 A 19970729; US 5737004 A 19980407

DOCDB simple family (application)

DE 19546248 A 19951212; CN 96114327 A 19961212; DE 59609560 T 19961210; EP 96119782 A 19961210; JP 33202596 A 19961212; KR 19960063093 A 19961209; US 76390596 A 19961211