Pressure-contact device for applying print head onto platen of p

Details Pressure-contact device for applying print head onto platen of p Pressure-contact device for applying print head onto platen of p

1994-02-22

1995-08-29

Bennett, Chris A.

Typewriting machines

Typing by other than type-face or type-die

Thermal

400 56, 403117, 403DIG8, 74497, B41J 2335

Patent

active

054454603

ABSTRACT:
A print head pressure-contact device equipped with a linkage for applying a print head onto a platen of a printer, comprises a drive lever having a driven connection with a motor and a driven lever rotatably linked to the drive lever. The drive lever has a cam and the driven lever has a cam follower cooperative with the cam, such that a power transmission is changed from a linkage transmission to a cam transmission within a predetermined angle range with respect to an angle between the two levers.

REFERENCES:
patent: 4653951 (1987-03-01), Bodle et al.
patent: 5064300 (1991-11-01), Kashiwaba
patent: 5087926 (1992-02-01), Wakui
patent: 5181787 (1993-01-01), Hosomi
patent: 5217315 (1993-06-01), Rosane
patent: 5265966 (1993-11-01), Schmidt

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