Head tending apparatus for an ink jet printer

Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element

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346140R, G01D 1516, B41J 304

Patent

active

049689940

ABSTRACT:
A head tending apparatus for an ink jet printing system with at least one ink jet is disclosed. The apparatus includes a solvent supply system for spraying solvent on the faces of the ink jets and in the jet openings. The apparatus also has a brush for scrubbing the ink jet faces during and immediately after the spraying process. The solvent loosens and dissolves any solid matter that may have formed on the jet faces or in the jet openings and also deprimes any ink remaining in the jets when the printer is shut down; the brush cleans the loosened matter off the jet faces. If the printer has a rotating image insert assembly with the ink jets thereon, the brush and a solvent jet are mounted to a shell adjacent the ink jets. The brush includes a bristle-free section that is normally adjacent the image insert assembly and spaced away therefrom when the head tending appartaus is deactivated; this prevents the apparatus from interfering with the normal operation of the printer. Head tending is normally performed when the

REFERENCES:
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patent: 4714936 (1987-12-01), Helinski
Maintenance System and Sequence for Impulse Ink Jet Printer, IBM Tech. Disc. Bulletin, vol. 28, No. 6, Nov. 1985, pp. 2344-2345.

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