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COPY SHEET REGISTRATION SYSTEM

IP.com Disclosure Number: IPCOM000022941D
Original Publication Date: 1976-May-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 304K

Publishing Venue

Xerox Disclosure Journal

Abstract

A sheet registration system for providing front edge registration in space and time for a sheet while the sheet is moving, e.g., for copy sheets which must be pre~regis-~ tered with image positions on a xerographic photoreceptor "P" while being fed into the photoreceptor. The sheet I is fed in on a pair of endless high~speed input belts 2.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

COPY SHEET REGISTRATION SYSTEM
ProposedJohn Looney Classification

U.S. Cl, 355/3
mt. Cl, G03g 15/00

A sheet registration system for providing front edge
registration in space and time for a sheet while the sheet
is moving, e.g., for copy sheets which must be pre~regis-~
tered with image positions on a xerographic photoreceptor
"P" while being fed into the photoreceptor. The sheet I
is fed in on a pair of endless high~speed input belts 2.

The input belts 2 feed the sheets onto a parallel spaced
pair of endless register belts 3, each of which carries
at least one projecting pin 4. The register belts 3 over~
lap but are moving at a slower speed (e.g., 2/3) than the
input belts 2. Therefor the front edge of the sheet 1 will
strike the upstanding slower moving pins 4. The input
belts 2 continue to feed the sheet frictionally, with
slippage, to maintain both sides of the front edge of the
sheet against both pins 4. This system accon,modates con~
siderable initial location (registration) error of the
sheet 1 on the input belts 2 because the registration pins
4 are in the sheet feeding path for the entire time that
these pins are moving along the upper flight of the

Volume 1 Number 5 May 1976 85

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Page 2 of 2

COPY SHEET REGISTRATION SYSTEM (Cont~d)

register belts 3, Further, the pins do not have any up or
down movement during their sheet edge registering time
period because the movement of the register belts 3 and...