Browse Prior Art Database

Horizontal Format Control for Serial Printer

IP.com Disclosure Number: IPCOM000094218D
Original Publication Date: 1966-Jul-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Martin, VC: AUTHOR [+2]

Abstract

In a serial matrix printer, print head 10, comprising a matrix of wires 12, is mounted on metal strap 14. Head 10 is driven back and forth across the print line on document 15 by a drive represented by drum 16.

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Horizontal Format Control for Serial Printer

In a serial matrix printer, print head 10, comprising a matrix of wires 12, is mounted on metal strap 14. Head 10 is driven back and forth across the print line on document 15 by a drive represented by drum 16.

Horizontal format control is provided by a control tape 20. The latter is mounted on drums 21 and 22 connected in driven relation with tape 14 by sprocket holes 14a, sprocket pins 21a and holes 20a. Tape 20 has holes punched in a plurality of channels 1... N. Sensing head 23 provides signals for a plurality of functions.

For example, channel 1 can be used to cause the data input lines to the printer to be switched from a card reader to a processing unit. Channel 2 can be used for tab stop signals. Channel 3 can be used to set the margins. Channel 4 can be used to initiate a change in character style. Tape 20 can also be used to identify unique print positions by using seven tape channels in a binary code.

The signals from head 23 can be used for storage of an error location, tabbing, margin setting, etc., in conjunction with associated electronic signals.

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