Patent ID: 8196787

Claim:
An apparatus comprising: a print device comprising one or more drop-on-demand inkjet print heads; a first strap coupled to the print device and configured to wrap about proximal phalanges to mount the print device on a back of a hand such that the print device is pivotable with the proximal phalanges relative to metacarpophalangeal joints of the hand, wherein the print device has a nose projecting forwardly beyond the first strap by a distance so as to project forwardly beyond the proximal phalanges, the print device being configured to deposit printing materials onto a surface in a direction parallel to the proximal phalanges and through the nose while the nose faces the surface; one or more rotatable structures projecting from the nose, spaced from the print device and configured to roll along and in contact with the surface to space the print device out of contact with the surface while the one or more rotatable structures roll along and contact the surface as the nose is moved across the surface during printing; a rudder coupled to the print device and configured to project between adjacent proximal phalanges of the hand along, coincident with and on an axis parallel to the proximal phalanges; and a spine coupled to the print device and configured to project between adjacent metacarpophalangeal joints of the hand while the first strap wraps about the one or more proximal phalanges, the spine extending along, coincident with and on the axis in alignment with the rudder.