Printer with capping device

Details Printer with capping device Printer with capping device

B - Operations, Transporting

41

J

B41J 2/165 (2006.01) B41J 3/36 (2006.01)

Patent

CA 2475615

A capping device seals against a print chip (12) of a printhead (11) fixed within a housing (10) of a hand-held portable printer. The capping device can be moved manually by a user or automatically by internal mechanisms to reveal the print chip for printing. The capping device includes a capper arm (13) with an activating region (15) and a perpendicular leg (28) with an elastomeric pad (16) that seals against the chip (12). The capping device can be moved by mechanisms such as a fulcrum or pivot point (14), a friction clutch (19) with peg (20), an eccentric cam (23) or an internal solenoid (26). The capper arm can be formed of a resilient, elastically deformable material such as metal or plastics. In a non-printing mode, the capping device seals the print chip to prevent evaporation of ink, drying or blockages.

L'invention concerne un dispositif de protection ~tanche pour la puce (12) d'impression d'une tÚte (11) d'impression fix~e dans un logement (10) d'une imprimante portable. Le dispositif de protection peut Útre d~plac~ manuellement par un utilisateur ou automatiquement par des m~canismes internes de mani­re ~ mettre ~ d~couvert la puce d'impression pour l'impression. Le dispositif de protection est ~quip~ d'un bras (13) de fermeture pourvu d'une zone (15) d'activation et d'un pied perpendiculaire (28) comprenant un tampon ~lastom~rique (16) recouvrant la puce (12) de mani­re ~tanche. Le dispositif de protection peut Útre d~plac~ par des m~canismes, par exemple un point d'articulation ou un point (14) de pivotement, un embrayage (19) ~ friction avec une cheville (20), une came excentrique (23) ou un sol~no~de interne (26). Le bras de fermeture peut Útre form~ d'un mat~riau ~lastique d~formable tel que le m~tal ou le plastique. Dans un mode de non impression, le dispositif de protection recouvre de mani­re ~tanche la puce d'impression afin de pr~venir l'~vaporation de l'encre, le s~chage ou des blocages.

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