Patent ID: 6672780
Filing Date: 2004-01-06
Classification: B41J

Abstract:
A thermal printhead mechanism comprising:a spring channel fixed in a stationary location; a pair of independent resilient members supported on said spring channel; a top bracket movably supported on said pair of independent resilient members, a first point of said top bracket being supported by a first of said pair of independent resilient members and a second point of said top bracket being supported by a second of said pair of independent resilient members; and a printhead secured to said top bracket; wherein said printhead secured to said top bracket may translate toward and away from said fixed spring channel by uniform expansion and contraction of said pair of independent resilient members to accommodate differing media thicknesses and may also rotate such that said first and second points of said top bracket are at different distances from said fixed spring channel by differential expansion and contraction of said pair of independent resilient members to accommodate media of non-uniform thickness.