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US 10,160,239 B2Granted
Printer with printhead assembly, clutch assembly, and printer ribbon transport assembly
AssigneeZIH Corp.
InventorsHsin-Chih Chen, Petricia Dorinel Balcan, Randal Wong
Life of this patent
Estimating the term…
Abstract
A printer may include a printhead assembly, a clutch assembly, and/or a printer ribbon transport assembly. An example clutch assembly includes a first spool engagement member defining a first friction torque; a first friction member configured to frictionally engage the first spool engagement member; a second spool engagement member defining a second friction torque that is larger than the first fiction torque; and a second friction member configured to frictionally engage the second spool engagement member.
Claims13
A clutch assembly comprising:
- a first spool engagement member configured to engage a first ribbon core;
- a first friction member configured to frictionally engage the first spool engagement member, the first friction member comprising a friction plate and a coupling plate, the friction plate being mounted to the coupling plate through a cavity keyed to a shape on the coupling plate;
- a second spool engagement member configured to engage a second ribbon core, wherein the coupling plate is configured to couple the first friction plate to a second spool engagement member;
- and
- a second friction member configured to frictionally engage the second spool engagement member, wherein the second friction member is larger than the first friction plate.
2 more elements
A clutch assembly comprising:
- a first spool engagement member defining a first diameter to engage a first ribbon core of a first size;
- a first friction member configured to frictionally engage the first spool engagement member, the first friction member comprising a friction plate and a coupling plate, the friction plate being mounted to the coupling plate via a cavity keyed to a shape on the coupling plate;
- a second spool engagement member defining a second diameter that is greater than the first diameter to engage a second ribbon core of a second size larger than the first size, wherein the coupling plate is configured to couple the first friction plate to the second spool engagement member;
- and
- a second friction member configured to frictionally engage the second spool engagement member.
2 more elements
Dependencies are inferred from the claim text.