Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Printer ribbon supply mechanism with end of ribbon detect expedient which reduces ribbon drag

Printer ribbon supply mechanism with end of ribbon detect expedient which reduces ribbon drag

US Patent 4213575 · Granted Jul 22, 1980

Estimated economic value: $28,838,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method and apparatus for fusing envelopes1990
System for generating circuit boards using electroeroded sheet layers1986
Electroerosion printhead with tungsten electrodes, and a method for making same1985
Multi-zone thermal print head1985
Multi-zone thermal print head1985
Capacitive metering means for uniform ribbon feed and take-up mechanism1984
Thermal print apparatus using a thermal transfer ribbon such as a multi-colored 1984
Thermal print head1984
Replaceable ribbon cartridge1984
Method of manufacture of a multi-wire nonimpact printhead1983
Ribbon drive mechanism for high speed printer1981
Reversible ribbon cartridge for a high speed impact printer1981