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VACUUM ACTUATED JAM DETECTION

IP.com Disclosure Number: IPCOM000023023D
Original Publication Date: 1976-Jun-30
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 193K

Publishing Venue

Xerox Disclosure Journal

Abstract

An electrophotographic printing machine employing a conveyor 10 for advancing a sheet of support material 12 through the processing stations thereof, Conveyor 10 comprises an endless belt 14 having a plurality of apertures 16 therein, Belt 14 is entrained about a pair of opposed spaced rollers 18 arranged to advance belt 14, As belt 14 advances, sheet 12 covers the apertures therein, A blower creates an air flow tacking sheet 12 to belt 14 blocking apertures 16 therein. This creates a vacuum actuating switch 20 indicating that sheet 12 is on belt 14, If switch 20 remains actuated for a time period in excess of a pre-selected duration, the printing machine indicates that a jam has occurred,

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

VACUUM ACTUATED JAM DETECTION
ProposedDennis W. Berman Classification
tJ.S, Cl. 271/260
mt. CL B65h 7/12

An electrophotographic printing machine employing a
conveyor 10 for advancing a sheet of support material 12
through the processing stations thereof, Conveyor 10
comprises an endless belt 14 having a plurality of
apertures 16 therein, Belt 14 is entrained about a
pair of opposed spaced rollers 18 arranged to advance
belt 14, As belt 14 advances, sheet 12 covers the
apertures therein, A blower creates an air flow
tacking sheet 12 to belt 14 blocking apertures 16 therein.
This creates a vacuum actuating switch 20 indicating that
sheet 12 is on belt 14, If switch 20 remains actuated
for a time period in excess of a pre-selected duration,
the printing machine indicates that a jam has occurred,

Volume 1 Number 6 June 1976 67

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

Page 2 of 2

68 XEROX DISCLOSURE JOURNAL

Volume 1 Number 6 June 1976

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