Browse Prior Art Database

Turret-Type Paper Handler for a Printer

IP.com Disclosure Number: IPCOM000043769D
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 50K

Publishing Venue

IBM

Related People

Cassell, JN: AUTHOR [+2]

Abstract

A technique is described whereby a turret is utilized to facilitate different types of paper handling devices for wire matrix printers and the like. The turret adds versatility to printing devices by eliminating the need of removing and adding mechanisms required when a variety of handlers are needed to service different paper forms. The turret assembly unit 1, as shown in Fig. 1, rotates about center line A-A, depending on the need to use tractors 2 or driver rollers 3 to drive the paper. The stepper motor 4 will drive the sprockets 5 to advance the paper for either turret position. Fig. 2 shows the turret in position for handling pin feed documents, and Fig. 3 shows the turret in use for handling cut forms fed and controlled by pressure rollers 6.

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Turret-Type Paper Handler for a Printer

A technique is described whereby a turret is utilized to facilitate different types of paper handling devices for wire matrix printers and the like. The turret adds versatility to printing devices by eliminating the need of removing and adding mechanisms required when a variety of handlers are needed to service different paper forms. The turret assembly unit 1, as shown in Fig. 1, rotates about center line A-A, depending on the need to use tractors 2 or driver rollers 3 to drive the paper. The stepper motor 4 will drive the sprockets 5 to advance the paper for either turret position. Fig. 2 shows the turret in position for handling pin feed documents, and Fig. 3 shows the turret in use for handling cut forms fed and controlled by pressure rollers 6. The fixed roller unit 7 is used beyond the print point 8 to provide the proper tension to the paper. Unique to the roller unit 7 is a slipping or torque adjustable drive mechanism. This allows a means to compensate for a slight amount of overdrive that may occur in relation to the turret drive. Therefore, the proper tension is maintained on the paper at the print point 8 and the line registration is maintained. A clutch device is attached at the fixed roller unit 6 to provide "roll-back" for document positioning.

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