Method and apparatus for controlling concentration of developer

Details Method and apparatus for controlling concentration of developer Method and apparatus for controlling concentration of developer

1998-06-11

2000-09-12

Lee, Susan S. Y.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347140, 399 27, 399 43, 399 57, 399 58, 399233, 399237, B41J 2385, G03G 908, G03G 1500, G03G 1510

Patent

active

061184667

ABSTRACT:
A method for controlling concentration of a developer in a developing reservoir of a wet printer includes the steps of counting image data output from a system controller to a laser scanning unit to form an electrostatic latent image on a photosensitive medium, calculating the amount of a consumed toner supplied from the developing reservoir to the photosensitive belt according to a value counted in the counting step of formation of the electrostatic latent image, and supplying toner from a toner supplying unit into the developing reservoir to refill the amount of the consumed toner calculated in the calculation step. The developer also includes a liquid carrier element. Thus, the ratio of the toner to liquid carrier element in the developing reservoir may be maintained within a predetermined range, without having an additional apparatus for measuring the concentration of the developer.

REFERENCES:
patent: 5227847 (1993-07-01), Motohashi et al.
patent: 5724627 (1998-03-01), Okuno et al.
patent: 5797061 (1998-08-01), Overall et al.
patent: 5802420 (1998-09-01), Garr et al.
patent: 5923356 (1999-07-01), Gibson et al.
patent: 5974229 (1999-10-01), Yoshino

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