Roll film carrier used in reader or reader printer

Details Roll film carrier used in reader or reader printer Roll film carrier used in reader or reader printer

1982-04-19

1985-06-18

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

318 6, 318601, 360 71, G05B 1928

Patent

active

045243158

ABSTRACT:
In a roll film carrier for rewinding the roll film wound on a supply reel onto a take-up reel there are provided a signal generating means which detects the rotation of the supply reel shaft and outputs a corresponding signal, a means for generating a pulse synchronously with the passage of the roll film and a means for controlling the driving of the roll film through comparison of the number of pulses generated in the signal generating period of the signal generating means with a predetermined number and it is so arranged that the driving of the roll film is stopped when the number of generated pulses has agreed with the predetermined number.

REFERENCES:
patent: 3997828 (1976-12-01), Bottcher
patent: 4047085 (1977-09-01), Ollendick
patent: 4068934 (1978-01-01), Tanaka et al.
patent: 4160195 (1979-07-01), Sakamoto
patent: 4166239 (1979-08-01), Nakatani
patent: 4213583 (1980-07-01), Mitani et al.
patent: 4295171 (1981-10-01), Hirota et al.
patent: 4347538 (1982-08-01), Klank
patent: 4377826 (1983-03-01), Furuta

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