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Browse Prior Art Database

A CHARGING METHOD

IP.com Disclosure Number: IPCOM000025360D
Original Publication Date: 1984-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 48K

Publishing Venue

Xerox Disclosure Journal

Abstract

The fluid assisted ion projection printing head disclosed in U.S. Patent No. 4,463,363 is usable for periodically charging a photoconductor by connecting a simple RC circuit to the modulating jaws of the head. A properly selected AC frequency can also be used to modulate the jaws to allow charges to exit a slit between the jaws periodically with time to bias a receiver moving beJow the jaws. In practice, a .006" wide by 4" long line has been recorded in 1.5 x 10- sec. at 2 psi on a 3 mil thick aluminum red Mylar receiver traveling at 4 inch/sec. A charge to receiver gap of Z .021" was used which provides for an easy mechanical tolerance.

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XEROX DISCLOSURE JOURNAL

A CHARGING METHOD Robert W. Gundlach Richard F. Bergen

Proposed Classification
U.S. CI. 355/3CH

Int. CI. G03g 15/00

The fluid assisted ion projection printing head disclosed in U.S. Patent No. 4,463,363 is usable for periodically charging a photoconductor by connecting a simple RC circuit to the modulating jaws of the head. A properly selected AC frequency can also be used to modulate the jaws to allow charges to exit a slit between the jaws periodically with time to bias a receiver moving beJow the jaws. In practice, a .006" wide by 4" long line has been recorded in 1.5 x 10- sec. at 2 psi on a 3 mil thick aluminum red Mylar receiver traveling at 4 inch/sec. A charge to receiver gap of Z .021" was used which provides for an easy mechanical tolerance.

The electrical circuitry for modulation can be adjusted to the drive speed of the receiver to produce high resolution strips of charge on a photoconductor simply and inexpensively.

38 I

Volume 9 Number 6 November/December 1984

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382 XEROX DISCLOSURE JOURNAL

Volume 9 Number 6 November/December 1984

[This page contains 1 picture or other non-text object]