Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2005-04-26
2005-04-26
Hsieh, Shih-Wen (Department: 2861)
Incremental printing of symbolic information
Ink jet
Controller
C358S003130
Reexamination Certificate
active
06883890
ABSTRACT:
This invention concerns a printhead capping mechanism for preventing evaporation of ink from a printhead when it is not in use. The invention has utility, for instance, in a color printer which uses a drop-on-demand inkjet printhead. The mechanism includes a cap fitted with an elastomeric seal to seal against the face of the printhead, and a sponge to catch drops ejected from the printhead during the nozzle cleaning cycle. The mechanism also includes an actuating structure operable to selectively move the cap between an engaged position to press against the printhead and a disengaged position spaced away from the printhead.
REFERENCES:
patent: 6334664 (2002-01-01), Silverbrook
patent: 6652052 (2003-11-01), Silverbrook
patent: 6820974 (2004-11-01), Silverbrook
Hsieh Shih-Wen
Silverbrook Research PTY LTD
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