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Paper Feed and Index Mechanism

IP.com Disclosure Number: IPCOM000062526D
Original Publication Date: 1986-Dec-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Mink, JW: AUTHOR

Abstract

A platen is indexed and paper fed simultaneously from a single motor disposed within the platen. A platen 3 has its ends rotatably supported by end caps 4 and 5. A motor 6 is disposed within the platen 3 and has one end attached to the end cap 4 through screws 7 (one shown). A shaft 8, which has feed rollers 9 mounted thereon for rotation therewith but slidable relative thereto, has one end rotatably supported in an arm 10 pivotally mounted on the end cap 5 and its other end rotatably supported in a lever 11. The shaft 8 has a feed roller gear 12 secured thereto and driven from the motor 6 through a pinion gear 13 on an output shaft 14 of the motor 6 and a gear 15 rotatably supported on a rod 16 secured to the end cap 4. Rotation of the motor 6 drives the feed rollers 9.

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Paper Feed and Index Mechanism

A platen is indexed and paper fed simultaneously from a single motor disposed within the platen. A platen 3 has its ends rotatably supported by end caps 4 and
5. A motor 6 is disposed within the platen 3 and has one end attached to the end cap 4 through screws 7 (one shown). A shaft 8, which has feed rollers 9 mounted thereon for rotation therewith but slidable relative thereto, has one end rotatably supported in an arm 10 pivotally mounted on the end cap 5 and its other end rotatably supported in a lever 11. The shaft 8 has a feed roller gear 12 secured thereto and driven from the motor 6 through a pinion gear 13 on an output shaft 14 of the motor 6 and a gear 15 rotatably supported on a rod 16 secured to the end cap 4. Rotation of the motor 6 drives the feed rollers 9. The feed rollers 9 are moved longitudinally along the shaft 8 in accordance with the size of a sheet 17 of paper. The sheet 17 of paper must lie flat at the rear of the platen 3 to prevent a bubble effect. When more than one of the sheets 17 of paper is to be fed, the position of the feed rollers 9 relative to the platen 3 must be adjusted. By pushing down on the lever 11 so that it rotates clockwise, a clearance 19 (Fig. 2) is provided between the platen 3 and the feed rollers 9 (Fig. 1) which are the same diameter as the gear 12. Pressure is maintained on the feed rollers 9 by a spring attachment 20 cooperating with the lever 11 and a spring attachment 21 cooperat...