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LUBRICANT APPLICATORS FOR PHOTORECEPTORS

IP.com Disclosure Number: IPCOM000025974D
Original Publication Date: 1989-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 118K

Publishing Venue

Xerox Disclosure Journal

Abstract

To enable reliable blade cleaning, charge retentive surfaces in electrostatographic devices require lubrication. Commonly, a lubricant additive is supplied with toner, and deposited on the surface during development processes. However, addition of such lubricants sometimes changes the electrostatic characteristics of toner, and adversely affects development. Additionally, application of toner to the surface in this manner is difficult to control, and may result in too much or too little tonerapplied to the surface.

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XEROX DISCLOSURE JOURNAL

LUBRICANT APPLICATORS FOR Proposed Classification PHOTORECEPTORS U.S. c1.35513
Nero R. Lindblad
C1. Int. James R. Beachner G03g 15/00

To enable reliable blade cleaning, charge retentive surfaces in electrostatographic devices require lubrication. Commonly, a lubricant additive is supplied with toner, and deposited on the surface during development processes. However, addition of such lubricants sometimes changes the electrostatic characteristics of toner, and adversely affects development. Additionally, application of toner to the surface in this manner is difficult to control, and may result in too much or too little tonerapplied to the surface.

It is proposed that a lubricant film be applied to the photoreceptor with an a plicator. A filming-type lubricant which allows intimate contact of the brade with the surface may be desirable. Some members of this class of lubricants may be formed into a solid bar for application. A brush or foam roll rotating in contact with the charge retentive surface and lubricant bar applies lubricant removed from the bar to the surface. The bar might be spring loaded against the brush or foam roll to maintain its position with respect thereto.

An applicator arrangement may be located either upstream or downstream from the blade cleaner. However, in either case, it is desirable to apply lubricant to a clean surface. Use of the applicator against a toner laden surface may allow the lubricant to be contaminated as toner is carried into the lubricant by the brush or foam roll. applicator arrangement is upstream from the blade cleaner, then the applicator should be used during dedicated lubricating cycles. In the upstream configuration, the blade cleaner serves to smooth lubricant applied to the surface, and remove excess lubricant.

Accordingly, if the

If the applicator arrangement is located downstream from the blade cleaner, against the cleaned charge retentive surface, then the applicator can be run continuously or intermittently. Intermittent application would assist in controlling the amount of lubricant applied to the surface....