Replaceable roller bogie for document feeding apparatus

摘要

A replaceable roller bogie for a single sheet feeder includes pre-feed and separation rollers (80, 90) mounted on a frame (50) which also has a frame positioning lever (56) thereon. Roller drive gears (82, 98) are mounted between spaced plates ((52, 54) on the frame and include a pre-feed roller clutch gear ((110) with elastomeric teeth which is mounted in slots (58, 72) on the frame which limit motion travel of the clutch gear to prevent over engagement of gear teeth on the clutch gear with gear teeth on the pre-feed roller drive gear. The replaceable bogie is pivotally supported on the sheet feeder and held in place by a manually operable release and latch mechanism (230).