Patent ID: 6263177
Filing Date: 2001-07-17
Classification: G03G

Abstract:
A document printer comprising:(i) a frame including a front frame plate,(ii) a reference pin extending from said front frame plate at predetermined location,(iii) an image-recording drum having a photo-sensitive outer surface and having opposing and outwardly extending front and rear axles disposed on an intended axis of drum rotation, each of said front and rear axles supporting a bearing by which said drum is rotatably supportable;(iv) a plurality of work-stations for producing transferable images on the drum's photo-sensitive outer surface; and(v) a front drum-support member mounted on said front frame plate and precisely located thereon by said reference pin, said front drum support member having (a) a set of mechanical fiducials for locating at least one of said work-stations relative to the drum surface, and (b) a selectively energizeable clamping mechanism for selectively engaging the bearing on said front drum axle, whereby said front drum-support member can either rotatably support said image-recording drum, or be decoupled therefrom so that the drum can be removed from the printer frame independent of said drum-support member.