Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent
1992-09-09
1994-01-11
Eickholt, Eugene H.
Typewriting machines
Including interposed inking device for record-medium
Package for ribbon facilitating mounting of ribbon on...
242189, 242190, B41J 3528
Patent
active
052775046
ABSTRACT:
A printing apparatus is capable of detecting the end of an ink ribbon and verifying normal mounting of a ribbon cassette. When a portion of ink ribbon sufficient for printing one character is transported, an actuator in the ribbon cassette is rotated by a predetermined amount. The rotating actuator turns on and off a switch. The number of times the switch status is changed is detected. Determining the switch ON-OFF count makes it possible to detect the ink ribbon end and to check for any abnormal winding operation of the ink ribbon. Thus a single switch arrangement permits detection of both the ink ribbon end and an abnormal ink ribbon winding operation that may occur.
REFERENCES:
patent: 2365254 (1944-12-01), Dolan
patent: 4091913 (1978-05-01), Ku et al.
patent: 4146338 (1979-03-01), Hedstrom
patent: 4213575 (1980-07-01), Firth
patent: 4375339 (1983-03-01), Dyer et al.
patent: 4406554 (1983-09-01), Dreinhoff
patent: 4407593 (1983-10-01), Haftmann
patent: 4428695 (1984-01-01), Jamieson
patent: 4479730 (1984-10-01), Yoshioka et al.
patent: 4491430 (1985-01-01), Kuelzer
patent: 4780011 (1988-10-01), Hasegawa et al.
patent: 4793723 (1988-12-01), Furhata
patent: 4998833 (1991-03-01), Chiman
"Ribbon Take-Up System Using a DC Motor and an Optical Encoder", IBM Tech. Disc. Bulletin, vol. 27, No. 10B, Mar. 1985, pp. 6156-6157.
"End of Ribbon Detector" IBM Technical Disclosure Bulletin, vol. 20, No. 6, Nov. 1977, pp. 2173-2174.
Brother Kyogo Kabushiki Kaisha
Eickholt Eugene H.
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