Patent ID: 7158321
Filing Date: 2007-01-02
Classification: B41J,G02B

Abstract:
1. A pre-scan assembly for a laser scanning unit including a printhead housing and having a scanning element for scanning a light beam, and a laser light source emitting at least one light beam along a laser beam axis extending toward said scanning element, said pre-scan assembly comprising: a pre-scan lens assembly including a carrier, and a pre-scan lens supported in said carrier and defining a lens optical axis; a pre-scan mount associated with said housing and located between said light source and said scanning element; a pair of angular alignment datum surfaces defined in said pre-scan mount and extending generally parallel to said laser beam axis; said carrier including a pair of carrier alignment surfaces located on opposing sides of said carrier; said carrier comprising a flexible central structure joining said opposing sides whereby said carrier alignment surfaces are movable relative to one another; and said carrier alignment surfaces cooperating with said angular alignment datum surfaces, whereby said lens optical axis is generally aligned relative to said laser beam axis.