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Browse Prior Art Database

Dot Band Print Element

IP.com Disclosure Number: IPCOM000048749D
Original Publication Date: 1982-Mar-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Hanna, DW: AUTHOR [+2]

Abstract

A print element for a dot matrix printer comprises a continuous flexible band 10 containing dot projections 11 fixed at the apex of V-shaped flexure members 12. Flexure members 12, which are formed by etching apertures 13 and 14, are alternately inverted so that the dots may be located on relatively close center distances and the area of the belt is used to the maximum. The broad base of the flexure members 12 provides high lateral stiffness with controllable bending in the direction of printing. Because the flexure members 12 are forced to take the same curvature as the band 10 when going around a drive pulley (not shown), they cannot project out. Because the flexure members 12 cannot project out as they are bent around the pulley, they are less susceptible to damage and require less clearance.

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Dot Band Print Element

A print element for a dot matrix printer comprises a continuous flexible band 10 containing dot projections 11 fixed at the apex of V-shaped flexure members
12. Flexure members 12, which are formed by etching apertures 13 and 14, are alternately inverted so that the dots may be located on relatively close center distances and the area of the belt is used to the maximum. The broad base of the flexure members 12 provides high lateral stiffness with controllable bending in the direction of printing. Because the flexure members 12 are forced to take the same curvature as the band 10 when going around a drive pulley (not shown), they cannot project out. Because the flexure members 12 cannot project out as they are bent around the pulley, they are less susceptible to damage and require less clearance.

Because of the symmetry of the flexure members 12 this configuration of a dot print element is also suitable for bidirectional printing.

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