Development apparatus

Patent 4647179 Issued on March 3, 1987. Estimated Expiration Date:

May 29, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3113042

3778678

3801869

3872361

Imaging system with a diamine charge transport material in a polycarbonate resin Patent #: 4265990
Issued on: 05/05/1981
Inventor: Stolka , et al.

Inventor

Schmidlin, Fred W.

Assignee

Xerox Corporation

Application

No. 06/614499 filed on 05/29/1984

US Classes:

399/285, Having applied bias198/576, With means operating successive sections in timed relation361/212DISCHARGING OR PREVENTING ACCUMULATION OF ELECTRIC CHARGE (E.G., STATIC ELECTRICITY)

Examiners

Primary: Grimley, A. T.
Assistant: Warren, David

International Class

G03G 15/08 (20060101)

Abstract

Toner transporting apparatus for use in forming powder images on an imaging surface. The apparatus is characterized by the provision of a travelling electrostatic wave conveyor for the toner particles for transporting them from a toner supply to an imaging surface. The conveyor comprises a linear electrode array consisting of spaced apart electrodes to which a multiphase a.c. voltage is connected such that adjacent electrodes have phase shifted voltages applied thereto which cooperate to form the travelling wave.

Other References

FX/4072, Fuj Xerox Patent Appln., Filed 5/7/81; Title; "Toner Supply Device", in the name of Shizuo Sagami et al
Ser. No. 567,840, D/83129 Xerox Patent Appln. Filed Jan. 3, 1984, in the name of Joseph Mammino et al. entitled "Imaging System"