Compensation method and device for ink droplet deviation of an i

Details Compensation method and device for ink droplet deviation of an i Compensation method and device for ink droplet deviation of an i

1987-07-08

1989-01-24

Goldberg, E. A.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

396 75, G01D 1518

Patent

active

048003964

ABSTRACT:
A charge to deflect ink jet printer employs a correction signal to ink droplets to afford more accurate placement on a medium. Assessing the deviation of charged ink droplets from intended and actual impact locations, a control unit then determines an adjustable bias voltage for application to each charged droplet to compensate for the deviation and thus achieve improved image enhancement. This system is well suited for multiple nozzles which may be multicolor such as in computer printers. Both a method of operation and an apparatus are attendant to this system.

REFERENCES:
patent: 3596275 (1971-07-01), Sweet
patent: 3916421 (1975-10-01), Hertz
patent: 4562442 (1985-12-01), Jinnai et al.
patent: 4620196 (1986-10-01), Hertz
IBM J. Res. Develop., Controlling Print Height in an Ink Jet Printer; J. M. Carmichael; Jan. 1977, pp. 52-55.

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