Apparatus and method for providing a hydrophobic coating on an i

Details Apparatus and method for providing a hydrophobic coating on an i Apparatus and method for providing a hydrophobic coating on an i

1994-07-12

1996-09-24

Lund, Valerie A.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 33, B41J 2165

Patent

active

055595405

ABSTRACT:
The invention is an apparatus and method for periodically applying a hydrophobic coating layer to a face of an ink jet printing head to prevent droplets of ink from clogging nozzles of the printing head. An ink jet printer embodying the invention includes a hydrophobic material applicator that moves relative to the printing head to deposit hydrophobic material on the face of the ink jet printing head. The applicator may be a wiper blade or cylinder made from a hydrophobic material or embedded with a hydrophobic material, wherein the applicator contacts the face of the printing head during relative movement to transfer hydrophobic material to the printing head. The applicator may also be a spray head that sprays hydrophobic material onto the face of the printing head during relative movement.

REFERENCES:
patent: 5005024 (1991-04-01), Takahashi et al.
1992 Brochure and Advertisement by the Mobil Corporation for Ultra Tripledge.RTM. Windshield Wipers.

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