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Browse Prior Art Database

Multiline Option for a Hand Feed/ Retrieve Document Transport

IP.com Disclosure Number: IPCOM000045446D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Archer, JL: AUTHOR

Abstract

More than one line can be printed with the document transport shown in the preceding article by axially moving the drum assembly. Moving the drum axially prevents the spring clamp pin from entering its detent, and therefore the clamp continues to hold the document until the drum returns to the vertical and angular home position.

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Multiline Option for a Hand Feed/ Retrieve Document Transport

More than one line can be printed with the document transport shown in the preceding article by axially moving the drum assembly. Moving the drum axially prevents the spring clamp pin from entering its detent, and therefore the clamp continues to hold the document until the drum returns to the vertical and angular home position.

Fig. 1 shows a side section view of the document chute 23, drum 11, clamp 27, detent 31, and print opening 41. As a document is manually inserted into chute 23, it activates document sensor 39. The signal from sensor 39 activates control logic (not shown) to start clockwise rotation of drum 11. Drum 11 includes a plurality of cam grooves 33 around its circumference at its lower skirt. A pin 35 rides in the cam groove 33 and causes the drum to move axially downwardly as the drum rotates in a clockwise direction carrying the clamped document past a print- or read-head in opening 41 several times before returning to the home position. The drum is raised to the home position by that portion 37 of the cam groove. Because detent 31 cannot be entered by clamp pin 29 at any position other than the home position, drum 11 remains free to rotate and clamp spring 27 is held firmly against drum 11 by the outer periphery of chute 23 as the multilines of a document are printed. Fig. 2 shows a top view of the transport of Fig. 1.

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