Printing apparatus using ribbon cassette

Details Printing apparatus using ribbon cassette Printing apparatus using ribbon cassette

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.

Affiliated with

Also associated with

Rating

Printing apparatus using ribbon cassette does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printing apparatus using ribbon cassette, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printing apparatus using ribbon cassette will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1626885