Abstract: In a label printer printing on individual labels carried in spaced relationship on a surface of a longitudinally moving backing strip, this invention discloses apparatus for adjustably sensing leading edge positions of the labels. A stationary member is carried above the backing strip on one side of the backing strip. A movable member is carried by the stationary member for longitudinal movement along the path of the backing strip. There is provision for adjusting the longitudinal position of the moving member. A sensor is carried by the movable member for sensing leading edge positions of individual labels as a function of a change of thickness between the backing strip alone and the backing strip with a label on the surface. Both optical and mechanical versions are disclosed.

Abstract: A fixture (20) for fixing the position of a circuit component (22) relative to a circuit board (28). The fixture includes a spacer (40) that has contact surfaces (50) that bear upon a surface (26) of the board (28). The spacer (40) also includes support surfaces (56) upon which a dual in-line packaged component (22) rests. The distance between the contact surfaces (50) and support surfaces (56) are established to precisely locate a surface (60) of the component relative to the surface (26) of the board (28). Also included are clip mechanisms (42, 44) for securing the spacer (40) to the board (28) and for securing the component (22) to the spacer (40).