Browse Prior Art Database

PASSIVE VACUUM TRANSPORT BELT

IP.com Disclosure Number: IPCOM000027492D
Original Publication Date: 1997-Apr-30
Included in the Prior Art Database: 2004-Apr-08
Document File: 2 page(s) / 85K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a paper transport belt which is comprised of hollow, independent, and compressible chambers. Typically, vacuum transport belt assemblies utilized either fans or blowers, resident or ducted airflow, to create the positive drive force between the paper and the driving belts. These transport assemblies are used primarily to move paper vertically or up-side-down between subsystems, most notably between the post-transfer zone and the fuser entrance. These transports enable the unfused sheet, from the non-imaged side, to be moved without causing image disturbance. Each chamber is completely sealed with only a small pin hole to allow air to escape or be trapped. Each chamber is compressed as the belt is driven at the drive rolls, it creates a vacuum as each chamber attempts to relax, but cannot due to paper acting as the air restriction. As the paper and the belt reach the next drive roll, the belt is compressed as it conforms to the radius of the roll allowing the sheet to be released and accepted by the next subsystem.

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 57% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

PASSIVE VACUUM TRANSPORT BELT

Proposed Peter A. Sardano Classification

U. S. C1. 399/367 Int. C1. G03g 21/00

Disclosed is a paper transport belt which is comprised of hollow, independent, and compressible chambers.

Typically, vacuum transport belt assemblies utilized either fans or blowers, resident or ducted airflow, to create the positive drive force between the paper and the driving belts. These transport assemblies are used primarily to move paper vertically or up-side-down between subsystems, most notably between the post-transfer zone and the fuser entrance. These transports enable the unfused sheet, from the non-imaged side, to be moved without causing image disturbance. Each chamber is completely sealed with only a small pin hole to allow air to escape or be trapped. Each chamber is compressed as the belt is driven at the drive rolls, it creates a vacuum as each chamber attempts to relax, but cannot due to paper acting as the air restriction. As the paper and the belt reach the next drive roll, the belt is compressed as it conforms to the radius of the roll allowing the sheet to be released and accepted by the next subsystem.

The belt is formed using traditional elastomer manufacturing methods in continuous length. The chambers are either created either during the forming process or afterwards as a series of joining processes. An injection molding process may be used to create these long lengths of belt and later ultrasonically we...