Method of maintaining a printhead using contact angle...

Details Method of maintaining a printhead using contact angle... Method of maintaining a printhead using contact angle...

2005-10-11

2008-10-21

Hsieh, Shih-Wen (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S031000, C347S032000

Reexamination Certificate

active

07438382

ABSTRACT:
A method of maintaining a printhead in an operable condition is provided. The method comprises the steps of: (a) providing an elastically deformable pad having a contact surface for sealing engagement with an ink ejection face of the printhead; and (b) reciprocally moving the pad between a first position in which the contact surface is sealingly engaged with the face and a second position in which the contact surface is disengaged from the face. The movement causes a contact angle hysteresis such that ink is wicked from the printhead onto the contact surface during disengagement, but remains substantially in or on the printhead during engagement.

REFERENCES:
patent: 6017110 (2000-01-01), Jackson
patent: 1142716 (2001-10-01), None
patent: 0913263 (2003-05-01), None
patent: 62113554 (1987-05-01), None
patent: 2003341107 (2003-12-01), None

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