TAPE STORING AND FEEDING MECHANISM FOR MAILING MACHINES

摘要

A high speed, high volume mailing machine which utilizes ink jet technology for the printing of postage indicia on envelopes being fed through the mailing machine and on discrete portions of tape fed past the printing device of the mailing machine includes a tape storing and feeding mechanism which stores a roll of tape in the form of a web of indefinite length for feeding a discrete portion of the tape past the feeding device for each printing operation of the mailing machine, and feeds the tape forward to bring the printed portion thereof past and then reverses the movement of the tape to bring the new leading edge thereof to the beginning of the printing area. The tape storing and feeding mechanism provides a fixed support for the portion of the tape being printed on so as to maintain a critical gap between the surface of the tape and the plane of the jet nozzles to achieve a high printing quality. The tape storing and feeding mechanism also provides a feeding device which maintains effective control over the movement of the tape without contacting any part of the printed portion thereof, and further provides ample shock absorbing for the roll of tape so that sudden acceleration of the tape strip does not tear the tape in the printing area.