Method and device for setting the toner concentration in the...

Details Method and device for setting the toner concentration in the... Method and device for setting the toner concentration in the...

2003-07-23

2008-10-07

Brase, Sandra L (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S058000

Reexamination Certificate

active

07433613

ABSTRACT:
In a method and system for setting toner concentration of a toner particle-carrier particle mixture in a developer station for development of a latent charge image on a carrier, a sensor is arranged in the developer station measuring the toner concentration. Toner feed in the developer station is adjusted. A current consumption value is determined for toner particles. From the toner concentration measured with the sensor and from the toner consumption value, a toner concentration is calculated at a location in the developer station at which the toner is extracted. A calculated toner concentration at the toner extraction location is input as a control variable used to adjust toner feed so that the calculated toner concentration approaches a desired value.

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