Browse Prior Art Database

High-Speed Printer

IP.com Disclosure Number: IPCOM000098035D
Original Publication Date: 1961-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 85K

Publishing Venue

IBM

Related People

Hoffmann, W: AUTHOR

Abstract

The printer system combines a multi-line at a time printing station with a core storage buffer matrix 2. The latter is operated by coincident current pulses for selectively setting those cores which correspond to the characters to be printed. The control circuitry determines by comparison the identity of information to be printed. This is temporarily stored on information storage drum 4, with reference symbols stored on character drum 6. Comparing is performed for the magnetically stored information lines in a time sequential manner between single printing steps. The identity marking pulses are generated in the comparator circuits 8 and fed to the vertical lines of matrix 2. The horizontal lines are pulsed by impulses delivered through the character decoder 10.

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High-Speed Printer

The printer system combines a multi-line at a time printing station with a core storage buffer matrix 2. The latter is operated by coincident current pulses for selectively setting those cores which correspond to the characters to be printed. The control circuitry determines by comparison the identity of information to be printed. This is temporarily stored on information storage drum 4, with reference symbols stored on character drum 6. Comparing is performed for the magnetically stored information lines in a time sequential manner between single printing steps. The identity marking pulses are generated in the comparator circuits 8 and fed to the vertical lines of matrix 2. The horizontal lines are pulsed by impulses delivered through the character decoder 10.

The printing station comprises a stationary two dimensional print type carrying platen 12. The record carrier 14 is kept continuously moving parallel to
12. The number of lines on 14, simultaneously printed upon, is equal to the number of different print characters provided. Printing is effected by print hammers 16 selectively activated and moved perpendicular to the plane of motion of 14.

Carrier 14 passes the printing station at a speed such that a print line of 14 advances the distance between two successive rows of type of 12 for each revolution of drum 6. At the same time the information lines of drum 4 are displaced one position ahead relative to the reference symbols of 6. This pr...