Typewriting machines – Sheet or web – For feeding web record-medium
Patent
1992-05-19
1993-06-08
Burr, Edgar S.
Typewriting machines
Sheet or web
For feeding web record-medium
400605, 400636, B41J 1132, B41J 1303
Patent
active
052173127
ABSTRACT:
A single manually operated mode selector lever controls selection of a push, pull or park mode of operation of a form feed tractor in a printer. The lever controls a cam which moves a spring-biased tractor drive shaft axially so that a gear on the drive shaft selectively engages a first gear which drives the shaft in a first direction, a second gear which drives the shaft in a second direction, or engages no gear so that the drive shaft is not driven. The form feed tractors are mounted on the drive shaft so that the shaft may move along its axis relative to the tractors or the tractors may be pivoted relative to the shaft. The mode selector lever also controls a mechanism which applies a force to a tractor plate so as to pivot the tractors about the drive shaft, thereby changing the orientation of the tractors relative to the platen. The force applied to the tractor plate is also transmitted to pressure or pinch rolls in the pull mode to relieve constraint on movement of the forms.
REFERENCES:
patent: 4571103 (1986-02-01), Takeo et al.
patent: 4742946 (1988-05-01), Hamamichi et al.
patent: 4808019 (1989-02-01), Olson et al.
patent: 4896979 (1990-01-01), Nolte et al.
patent: 4898488 (1990-02-01), Yokoi et al.
patent: 4913574 (1990-04-01), Yokoi
patent: 4995745 (1991-02-01), Yokoi et al.
patent: 5011313 (1991-04-01), Sato
patent: 5026184 (1991-06-01), Durr et al.
patent: 5030024 (1991-07-01), Seshimo
"Operating Instructions KX-P1124 Impact Dot Matrix Printer", Panasonic Industrial Company, Computer Products Division.
Ruhe Thomas W.
Schattner David K.
Schmidt John A.
Burr Edgar S.
Funk Stephen R.
Griffin, Jr. B. Franklin
Lexmark International Inc.
LandOfFree
Single lever push/pull/park selector for printer forms tractor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single lever push/pull/park selector for printer forms tractor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single lever push/pull/park selector for printer forms tractor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1929587