Automatic printhead-to-paper gap adjustment

Details Automatic printhead-to-paper gap adjustment Automatic printhead-to-paper gap adjustment

1996-01-31

1998-07-07

Hecker, Stuart N.

Incremental printing of symbolic information

Ink jet

Controller

B41J 25308

Patent

active

057776350

ABSTRACT:
An ink-jet printer includes a cartridge having a presser foot thereon for adjusting the gap distance between the ink-ejecting nozzles of a cartridge carried by the carrier and the surface of a sheet of paper which receives the ejected ink. The presser foot is spring biased and slidably mounted on the carrier for movement in a direction generally normal to the plane of the paper. Cartridges are provided with surface features which vary according to the optimum nozzle-to-paper gap distance for best print quality. When a cartridge is mounted on the carrier, the surface feature on the cartridge moves the presser foot toward the paper feed path to automatically adjust the nozzle-to-paper gap distance to the optimum distance for the mounted cartridge. The surface features on the cartridges may be recesses of varying depths or projections of varying heights.

REFERENCES:
patent: 5366301 (1994-11-01), Martin et al.
patent: 5468076 (1995-11-01), Hirano et al.

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