Oki Pacemark 4410 Service Handbook

Also see for PACEMARK 4410: User guide Specifications Maintenance manual Service manual

Contents

40496501TH Draft Version 452.2.6 Bail Feed Mechanism (See Figure )This mechanism automatically opens the bail for pulling a paper into, and closes it after the paperpasses through the bail.This function is operated by exclusive bail motor (pulse motor). The bail motor rotates dependingon the position of a paper, moving the bail lift lever (L) back and forth through gears.The moving force of the bail lift lever (L) is also transmitted to the bail lift lever (R) through thesupport shaft, so the right lever moves longitudinally in synchronization with the left lever. On thebail lever, a cam plate is formed and interlocked to a pin of the bail Assy so that the bail Assy islifted and lowered by the longitudinal motion of the bail lever.(1) Bail close positionThis position is for the condition where a paper is being printed and carried with both bail Assyand feed roller front upper closed.(2) Bail open positionThis position is for the condition where a paper is being pulled into the bail unit with the bailAssy in open position and the feed roller front upper closed.(3) Bail half open positionThis position is for the condition where a paper is parked or jammed with both bail Assy andfeed roller front upper half-opened (to make removal of jammed paper easy).The rotational force transmitted to the feed roller through mini-pitch belt following the LF gearis, furthermore, transmitted to the bail roller, allowing both-side drive of paper at the bail unit.GearBail motorBail lift lever (L)Frame (L)Support shaftBail rollerDrive shaftFrame (R)GearBail lift lever (R)Feed roller(front lower)Feed roller(front upper)Feed roller(rear lower)Pitch beltFigure 2.31