Systems and methods for setting up grid voltages in a tandem pin charging device
AssigneeXerox Corporation
InventorsDavid Sekovski, Jing Qing Song, John Francis O'Brien, Stephen Ferris Randall, Song-Feng Mo
Life of this patent
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Abstract
Systems and methods for setting up grid voltage for a tandem pin charging device for charging a photoreceptor in a xerographic printing machine. A charge-generating emitter ratio of a first charging unit is determined and a first grid voltage is set based on the charge-generating emitter ratio of the first charging unit. A charge-generating emitter ratio of a offset voltage is then determined and a second grid voltage is set, based on the determined charge-generating emitter ratio of the offset voltage. A final voltage of a photoreceptor is then compared with a final target voltage.
Claims20
A method for setting the grid voltage of a tandem pin charging device, the method comprising:
- determining a charge-generating emitter ratio of a first charging unit;
- setting a first grid voltage based on the charge-generating emitter ratio of the first charging unit;
- determining a charge-generating emitter ratio of a second charging unit;
- setting a second grid voltage based on the determined charge-generating emitter ratio of the second charging unit;
- and
- comparing a final voltage of a photoreceptor with a final target voltage.
A charging system control system that controls the grid voltage setup process of a tandem pin charging device, comprising:
- a first charging unit target voltage determining circuit, routine or application that determines the target voltage for a first charging unit;
- a second charging unit target voltage determining circuit, routine or application that determines the target voltage of a second charging unit;
- a charge-generating emitter ratio determining circuit, routine or application that determines the charge-generating emitter ratio of at least one of the first charging unit and the second charging unit;
- and
- a final voltage comparing circuit, routine or application that compares a final voltage applied to a photoreceptor with a final target voltage.
Dependencies are inferred from the claim text.