Contact printing apparatus with presettable means indicating num

Details Contact printing apparatus with presettable means indicating num Contact printing apparatus with presettable means indicating num

1985-05-29

1986-12-02

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Record copying

Contact transfer

360 73, G11B 586

Patent

active

046269312

ABSTRACT:
A master tape and a slave tape are driven so that successive portions of each are brought into substantial contact with successive portions of the other at a printing station. A printing magnetic field is applied to such successive portions while they are in substantial contact with each other at the printing station, so that data on the master tape is copied onto the slave tape and the slave tape becomes a copy of the master tape. A single master tape can thus be employed to produce a plurality of copies. A counter counts the number of copies thus produced, and an indicator provides an indication corresponding to the remaining life expectancy of the master tape.

REFERENCES:
patent: 3459901 (1969-08-01), Cooper
patent: 3827077 (1974-07-01), Kobilka
patent: 3893167 (1975-07-01), Stahler
patent: 4101938 (1978-07-01), Hanai
patent: 4410917 (1983-10-01), Newdoll et al.
IBM-TDB-Method to Determine Tape Transport Cleaning Frequency Based on Actual Amount of Tape Processed with Operator Prompting Via Display; vol. 26, No. 12; 5/84.
Journal of SMPTE, vol. 79, No. 10, Contact Duplication of Videotape Recordings by Daniel Esterly, Oct./1970.
FM & Television, Mar. 1949, "Multiple Tape Recording", by Martin N. Olson, pp. 30 and 32.

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