公开(公告)号：CA973923A

公开(公告)日：1975-09-02

申请号：CA178369

申请日：1973-08-08

Applicant: IBM

Inventor： DENNY CLIFFORD M ,  NAYLOR HUGH E III ,  WILLIAMS THOMAS H

公开(公告)号：CA1145975A

公开(公告)日：1983-05-10

申请号：CA371893

申请日：1981-02-27

Applicant: IBM

Inventor： DENNY CLIFFORD M ,  WAMPLER CHARLES W II

IPC: F16H25/24 ,  B41J19/20 ,  B41J23/00 ,  F16H25/22

Abstract: DRIVE APPARATUS Disclosed is drive apparatus especially useful for controllably displacing the carrier of a printer, the drive apparatus including a lead screw having laterally spaced apart and floating threaded followers thereon. Intermediate the threaded followers are a first pair of preloaded springs which press the followers against the opposite flanks of the threads on the lead screw to thereby inhibit backlash intermediate the followers. A second pair of springs are mounted intermediate a bracket, which is fastened to the carrier, and at least one of the followers for effecting coupling between the carrier and the follower while controlling backlash therebetween. A pair of arms extend from the followers and are coupled to a restraining shaft in such a manner as to inhibit rotational movement of the arms (and thus the followers) while permitting motion of the followers in any perpendicular direction to the lead screw to accommodate runnout or eccentricity.

公开(公告)号：CA1156714A

公开(公告)日：1983-11-08

申请号：CA356135

申请日：1980-07-14

Applicant: IBM

Inventor： DENNY CLIFFORD M ,  HUGHES JOHN G ,  WEST DONALD L

IPC: B41J2/01 ,  B41J2/13 ,  B41J19/14 ,  B41J3/04 ,  G01D15/18

Abstract: INERTIAL DEFLECTION FIELD TILTING FOR BI-DIRECTIONAL PRINTING IN INK JET PRINTERS In a continuous type ink jet printer having a conventional charging electrode for charging ink drops in accordance with a signal to be recorded on a record receiving media, a pair of deflection electrodes is mounted in a rocker which pivots on a holder mounted on the carrier. As the carrier is accelerated from the stop condition to print speed, the acceleration of the carrier effects rotation of the rocker about the pivot and thus automatic tilt of the deflection electrodes backward from the direction of carrier movement thereby tilting or inclining the electric field formed between the electrodes to compensate for carrier movement. In the preferred form, a simple magnetic type latch is applied to retain the rocker in one position for printing in a first direction, and to enable quick release and reversal, under inertial control, when the carrier moves in the opposite direction. LE9-79-001