US 4,391,536 AGranted

Word processor print wheel assembly

AssigneeFranz Buttner AG

InventorsMichael Muller, Herbert Scherrer, Erwin Kagi

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Abstract

A print wheel assembly for a word processing machine utilizing a daisy wheel-type printer as a type-carrying disk in which the typefaces are mounted upon flexible members generally extending radially from a hub by which the wheel is mounted in the machine. According to the invention, a pigment carrier overlies the typefaces and can be of disk configuration and is so mounted on the wheel as to shift relative to the typefaces, whereby successive impacts are offset from one another for each typeface. The pigment carrier can be a bibulous or capillary fabric drawing ink from a reservoir dimensioned to supply sufficient ink to feed the transfer layer for the duration of the useful life of the wheel.

Claims10

Dependent claims

A print wheel assembly for a printer of a word processing machine or the like, comprising:

a type disk formed unitarily with a hub and a peripheral array of laterally deflectible typefaces connected to said hub;
an annular color-transfer layer connected to said disk and overlying said typefaces for juxtaposition with a paper onto which images of said typefaces are to be transferred by impact, said transfer layer being provided on a carrier rotatably mounted on said hub and angularly shiftable relative to said disk upon rotation thereof to offset successive points of contact between said typefaces and the layer;
and
an annular reservoir on said carrier and rotatably mounted thereby on said disk containing flowable coloring material and connected to said layer for transferring said material to said layer, said reservoir containing a porous material impregnated with said coloring material.

1 more element

Dependencies are inferred from the claim text.