Feed rates and two-mode embodiments for thermal transfer medium

Details Feed rates and two-mode embodiments for thermal transfer medium Feed rates and two-mode embodiments for thermal transfer medium

1984-08-10

1985-12-17

Wright, Jr., Ernest T.

Typewriting machines

Typing by other than type-face or type-die

Thermal

400225, 400227, 400229, 400232, 4002351, B41J 320

Patent

active

045589631

ABSTRACT:
Conservation of ribbon 40 is achieved by underfeeding ribbon 40 relative to movement of thermal printhead 16. Pressure of printhead 16 may be low enough that smearing from a typical ribbon 40 does not occur. Gears 208, 210, 212, 214 and 216 may be positioned in one of two settings by action of bellcrank 230. One position provides a 1.04 to 1 underfeed ratio and the other provides a 5 to 1 underfeed ratio. Control 232 lowers print current for the 5 to 1 ratio. A printer having a single ratio of 1.04 to 1 provides printing of unimpaired quality with significant saving of ribbon.

REFERENCES:
patent: 1934897 (1933-11-01), Watson
patent: 3051132 (1962-08-01), Johmann
patent: 3079604 (1963-02-01), Schwarzer
patent: 3232229 (1966-02-01), Anderson
patent: 3346090 (1967-10-01), Goff, Jr. et al.
patent: 3528536 (1970-09-01), Caudill et al.
patent: 3604549 (1971-09-01), Caudill et al.
patent: 3744611 (1973-07-01), Montanari et al.
patent: 3855448 (1974-12-01), Hanagata et al.
patent: 3985216 (1976-10-01), McIntosh
patent: 4103066 (1978-07-01), Brooks et al.
patent: 4132486 (1979-01-01), Kwan
patent: 4231667 (1980-11-01), Behrendt et al.
patent: 4232976 (1980-11-01), Bernardis et al.
patent: 4280767 (1981-07-01), Heath
patent: 4308318 (1981-12-01), Weiche
patent: 4329071 (1982-05-01), Applegate et al.
patent: 4329075 (1982-05-01), Applegate et al.
patent: 4353658 (1982-10-01), Craft
patent: 4384797 (1983-05-01), Anderson et al.
patent: 4396308 (1983-08-01), Applegate et al.
patent: 4408908 (1983-10-01), Applegate et al.
patent: 4456392 (1984-06-01), Nozaki et al.
patent: 4491853 (1985-01-01), Hayashi
IBM Technical Disclosure Bulletin, "Ribbon Feed Interrupt Technique for One-Way Clutch Ribbon Feed Mechanism", Haus, vol. 21, No. 6, Nov. 1978, pp. 2195-2196.
IBM Technical Disclosure Bulletin, vol. 19, No. 4, Sep. 1976, by D. P. Darwin, "Ribbon Drive", pp. 1407-1408.
IBM Technical Disclosure Bulletin, by M. D. Sweet et al., entitled "Reduced Consumption of Ribbon on an Impact Printer," vol. 23, No. 8, Jan. 1981, at p. 3506.

Affiliated with

Also associated with

Rating

Feed rates and two-mode embodiments for thermal transfer medium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Feed rates and two-mode embodiments for thermal transfer medium , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feed rates and two-mode embodiments for thermal transfer medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2171984