Electrophotography – Image formation – Development
Patent
1999-07-02
2000-08-08
Chen, Sophia S.
Electrophotography
Image formation
Development
347 89, 347 93, 399237, G03G 1510
Patent
active
061013560
ABSTRACT:
The carrier recovery apparatus includes a water/carrier separating unit with a level sensor installed at a predetermined level on a purge tank. The level sensor detects the level of the liquid carrier in the purge tank and generates a signal representing the level of the liquid carrier. The water/carrier separating unit also has a pump driven to draw out the water and liquid carrier stored in the purge tank through a connection pipe connected to the bottom of the purge tank in accordance with the signal generated from the level sensor, a first branching pipe branched off from the connection pipe to be connected to a waste water tank, and having a first valve selectively opened or closed, a second branching pipe branched off from the connection pipe to be connected to the carrier tank, and having a second valve selectively opened or closed, and a conductivity sensor installed at one end of the first branching pipe, for detecting the conductivities of the water and the liquid carrier and transmitting a control signal for selectively opening or closing the first valve and the second valve.
REFERENCES:
patent: 5884128 (1999-03-01), Park
patent: 5905928 (1999-05-01), Shin
patent: 5933689 (1999-08-01), Kim
patent: 5950054 (1999-09-01), Kim
patent: 6011943 (2000-01-01), Kim
Baik Un-ho
Kim Jong-woo
Chen Sophia S.
Samsung Electronics Co,. Ltd.
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