Browse Prior Art Database

FLOATING TRIM BAR

IP.com Disclosure Number: IPCOM000024156D
Original Publication Date: 1979-Oct-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 193K

Publishing Venue

Xerox Disclosure Journal

Abstract

In an electrophotographic printing machine, the photoconductive surface has cylindrical run-out. In order to maintain optimum development of the electrostatic latent image recorded on the photoconductive surface, it is desirable to maintain the spacing in the development zone between magnetic brush developer roller 10 and photoconductive drum 12 substantially constant. Thus, the magnetic brush developer roller moves radially relative to its center line so as to maintain the gap in the development zone substantially constant as the drum radius varies. In order

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 93% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

FLOATING TRIM BAR
Proposed0. 3. Aldinger Classification

U.S. CL 427/145

mt. CL B41m 5/16

/8

In an electrophotographic printing machine, the photoconductive surface has cylindrical run~out. In order to maintain optimum development of the electrostatic

latent image recorded on the photoconductive surface, it is desirable to maintain the spacing in the development zone between magnetic brush developer roller 10 and photoconductive drum 12 substantially constant. Thus, the magnetic brush developer roller moves radially relative to its center line so as to maintain the gap in the development zone substantially constant as the drum radius varies. In order

to maintain the amount of development mixture on the developer roller substantially constant, trim bar 14 must move in conjunction with developer roller

10. To achieve this, a radially displaceable trim bar 14 is mounted on a flexible mount 16 which secures it to developer housing 18. A follower 20 rides on either or both sides marginal region of developer roller 10 spaced from the development zone. In this way, as developer roller 10 moves radially to maintain a substantially

constant gap in the development zone, trim bar 14 moves in conjunction therewith to maintain the trim gap substantially constant. This constant supply of developer mix is furnished to developer roller 10.

Volume 4 Number 5 September/October 1979 683

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

Page 2 of 2

6L6T...