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REDUCTION OF REQUIRED DRIVE FORCE ON A TRANSVERSE GROOVED VACUUM BELT

IP.com Disclosure Number: IPCOM000024888D
Original Publication Date: 1982-Aug-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 39K

Publishing Venue

Xerox Disclosure Journal

Abstract

An electrophotographic printing machine frequently uses a vacuum belt system to transport copy sheets or original documents. In a vacuum belt system, the vacuum is restricted between the vacuum plenum and the belt to the regions above the longitudinal vacuum distribution grooves under the belt. The plenum surface in the regions between the vacuum distribution may, however, also be vented to atmos-pheric pressure. This venting is by shallow grooves in the plenum surface. This restricts the vacuum region to the sheet hold-down region.

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REDUCTION OF REQUIRED DRIVE FORCE ON A TRANSVERSE GROOVED VACUUM BELT
M. Silverberg

Proposed Classification

us. Cl. 355/3 Int. Cl. G03g 15/00

An electrophotographic printing machine frequently uses a vacuum belt system to transport copy sheets or original documents. In a vacuum belt system, the vacuum is restricted between the vacuum plenum and the belt to the regions above the longitudinal vacuum distribution grooves under the belt. The plenum surface in the regions between the vacuum distribution may, however, also be vented to atmos- pheric pressure. This venting is by shallow grooves in the plenum surface. This restricts the vacuum region to the sheet hold-down region.

Volume 7 Number 4 July/August 1982 265

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266

  XEROX DISCLOSURE JOURNAL Volume 7 Number 4 July/August 1982

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