Browse Prior Art Database

Continuous Form Feed Pin/Friction Tractor Belt

IP.com Disclosure Number: IPCOM000103066D
Original Publication Date: 1990-May-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 26K

Publishing Venue

IBM

Related People

Bahrami, H: AUTHOR [+3]

Abstract

A tractor belt pin-feed mechanism is generally used to feed continuous forms, with the pins engaging holes in the margins of the paper. A problem commonly experienced, particularly with lightweight papers, is that an unintended increase in the force required to move the paper can cause the holes to become distorted, leading to paper jams or printing mis-registration. In the present embodiment this problem is ameliorated by coating the top surface of the tractor belt with a high friction material, such as urethane, which thus makes contact with the underside of the paper. It is apparent that with this arrangement the paper pin feed is supplemented by the frictional force between the paper and the tractor belt coating, providing a more positive paper feed system.

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Continuous Form Feed Pin/Friction Tractor Belt

      A tractor belt pin-feed mechanism is generally used to feed
continuous forms, with the pins engaging holes in the margins of the
paper.  A problem commonly experienced, particularly with lightweight
papers, is that an unintended increase in the force required to move
the paper can cause the holes to become distorted, leading to paper
jams or printing mis-registration.  In the present embodiment this
problem is ameliorated by coating the top surface of the tractor belt
with a high friction material, such as urethane, which thus makes
contact with the underside of the paper.  It is apparent that with
this arrangement the paper pin feed is supplemented by the frictional
force between the paper and the tractor belt coating, providing a
more positive paper feed system.

      Anonymous.