Browse Prior Art Database

Multi-Line Printer

IP.com Disclosure Number: IPCOM000098171D
Original Publication Date: 1960-Apr-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 73K

Publishing Venue

IBM

Related People

Hoffmann, W: AUTHOR

Abstract

A printer utilizing a multi-line at a time mode of operation, resulting in concurrent, on-the-fly printing in multiple lines is shown. This includes a constantly moving type chain, a constantly moving record carrier moving orthogonally to the direction of movement of the type chain, and a magnetic drum from which to read characters to be printed and reference marks indicative of the character column locations.

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Multi-Line Printer

A printer utilizing a multi-line at a time mode of operation, resulting in concurrent, on-the-fly printing in multiple lines is shown. This includes a constantly moving type chain, a constantly moving record carrier moving orthogonally to the direction of movement of the type chain, and a magnetic drum from which to read characters to be printed and reference marks indicative of the character column locations.

This arrangement permits the concurrent printing of as many lines as there are different sets of characters on the type chain. A selectively operable print hammer is provided for each print position in each of the multiple lines. This arrangement enables all different characters to pass each record carrier print position between entrance of the record to and exit from the printing station.

Connected with the printing station by a drive is a magnetic drum which rotates with such speed that at the same time as a printing line of the record carrier reaches the next hammer position, a point on the surface of the drum advances a path length which is equal to the distance between two adjacent reading heads M or N, respectively. The information lines to be printed are first written onto a first drum section 1 by means of a plurality of writing heads W. After having passed the sets of reading heads M, the information lines are erased by E.

A second drum section II cooperating with the reading heads N bears magnetic reference markings which are in...