Printing mechanism with print hammer having noise dampener
AssigneeSmith Corona Corporation
InventorsStephen M. Pawlak, Roger J. Rimbey, Donald G. Anderson, Jr.
Life of this patent
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AssigneeSmith Corona Corporation
InventorsStephen M. Pawlak, Roger J. Rimbey, Donald G. Anderson, Jr.
Estimating the term…
A printing device including a print hammer having a noise dampener for use with an impact printer mechanism. The print hammer has a significant mass for impacting a character pad against an ink ribbon, paper and a platen. In a first embodiment the print hammer includes an acoustic noise dampening layer interposed between a mass weight and the hammer face which carries the anvil that impacts during printing. In other embodiments the print hammer is formed in two parts. One part having a weighted mass and the other part being pivotally coupled to the printer mechanism. The two parts are structurally joined together by a noise dampening member. Transmission of acoustic noise during impact printing through the hammer is reduced.
A printing device having a print element, a platen, a carrier supporting an impact printer mechanism having a print hammer for driving a selected character pad of said print element to print a character on an image print medium supported by said platen, said print hammer comprising:
A printing device having a print element, a platen, a carrier supporting an impact printer mechanism for driving a selected character pad of said print element to print a character on an image print medium supported by said platen, and a print hammer for use in conjunction with said impact printer mechanism for decreasing the acoustic noise transmitted through said print hammer, said print hammer comprising:
A printing device having a print element, a platen, a carrier supporting an impact printer mechanism for driving a selected character pad of said print element to print a character on an image print medium supported by said platen, and a print hammer for use in said impact printer mechanism for decreasing the acoustic noise transmitted through said print hammer, said print hammer comprising:
A printing device having a print element, a platen, a carrier supporting an impact printer mechanism for driving a selected character pad of said print element to print a character on am image print medium supported by said platen, said impact printer mechanism comprising:
Dependencies are inferred from the claim text.