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Browse Prior Art Database

Type Font Arrangement and Selection

IP.com Disclosure Number: IPCOM000094600D
Original Publication Date: 1965-Mar-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 79K

Publishing Venue

IBM

Related People

Hickerson, JE: AUTHOR

Abstract

A single element printing mechanism has a modified type font arrangement and selection changes to establish additional clearance among the characters on the print head. The arrangement is particularly useful when larger than normal characters are required on a standard size print head.

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Type Font Arrangement and Selection

A single element printing mechanism has a modified type font arrangement and selection changes to establish additional clearance among the characters on the print head. The arrangement is particularly useful when larger than normal characters are required on a standard size print head.

Print head 1 (drawing a) is mounted for reciprocation against platen 2 as indicated by arrow 3 and has the type font arranged in vertical columns and horizontal rows. Another arrangement as at b with the characters staggered or arranged in an alternate manner establishes greater clearance among the characters during printing. The principles are also applicable to a cylindrical print head as shown at c.

Selection of the print head along angular paths of motion as indicated by line 4 at d is effected by use of bevel gears 5 at e. The ratio of the gears is selected to produce, for example, one half horizontal spacing or rotary motion per line of tilt action. A universal joint 6 in combination with bevel gears as indicated at f produces variable spacing shown in the lower row of drawing g. The variable spacing is utilized by locating wide characters in the wide increments and narrower characters in progressively narrower increments. If uniforming spacing is desired as shown in the upper row of characters at g, the double universal joint at h can be incorporated in the print head selector mechanism instead. Movement of input shaft 7 is imparted unifor...