High quality printing system with constant intermittent tape dri

Details High quality printing system with constant intermittent tape dri High quality printing system with constant intermittent tape dri

1976-12-22

1978-08-29

Lucas, Jay P.

Recorders

Magnetographic

226113, 226118, 226170, 242182, G03G 1900, B65H 1742

Patent

active

041107586

ABSTRACT:
A printing system of the type wherein magnetic images are recorded on a tape, the images are toned, the tape is positioned to extend adjacent to a web of paper, and the toner is then transferred from the tape to the paper. In the present system, the tape portion which passes by the image recording head and toner is moved continuously, while the tape portion which passes adjacent to the paper is moved intermittently by frictional engagement with a transport belt, a pair of vacuum column buffers being provided between the continuously and intermittently driven tape portions and supplying tape tension that holds the tape to the transport belt. At the transfer station where the tape extends adjacent to the paper, transfer is effected by stopping the tape, and then utilizing a pair of actuators on either side of the paper to move corresponding tape locations to the plane of the paper, so that all portions of the tape contact or are very close to the paper, and by then applying a high voltage pulse to transfer the toner from the tape to the paper.

REFERENCES:
patent: 2775447 (1956-12-01), Stirn
patent: 2979244 (1961-04-01), Pouliart
patent: 3254626 (1966-06-01), Uemura
patent: 3549104 (1970-12-01), Morrow
patent: 3589579 (1971-06-01), Schulz
patent: 3767097 (1973-10-01), Watts
patent: 3805407 (1974-04-01), Fleissner
patent: 3958777 (1976-05-01), Gervais

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