Typewriting machines – Sheet or web – Including friction-feed means
Patent
1983-03-04
1984-12-18
Eickholt, E. H.
Typewriting machines
Sheet or web
Including friction-feed means
271110, B41J 1302
Patent
active
044888309
ABSTRACT:
A reflex photoelectric sensor (24) is provided to ascertain the precise position of a sheet of paper being fed around the writing roller 16 of an automatic typewriter or fast printer, to provide a signal from which the automatic drive of the writing roller can then advance the paper precisely so that what is written thereon will be in registry with pre-printed material on the paper, thus making it unnecessary to use edge-perforated long folded strips of paper in order to have precise location of lines automatically printed out on the paper.
REFERENCES:
patent: 4014427 (1977-03-01), Rines
patent: 4101018 (1978-07-01), Souolowsui
patent: 4257712 (1981-03-01), McGuire
patent: 4268021 (1981-05-01), Rutishauser et al.
patent: 4341480 (1982-07-01), Mailer
patent: 4396307 (1983-08-01), Shah et al.
"Document Insertion Device", IBM Technical Disclosure Bulletin, vol. 23, No. 8, Jan. 1981, pp. 3757-3758.
"Reflective Document Detector", IBM Technical Disclosure Bulletin, vol. 23, No. 1, June 1980, pp. 137-138.
"Transmissive Document Sensor", IBM Tech. Discl. Bulletin, vol. 22, No. 4, Sep. 1979, pp. 1585-1586.
"Sensing Sheet Movement", IBM Tech. Discl. Bulletin, vol. 23, No. 10, Mar. 1981, pp. 4800-4801.
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