Scaling aerodynamic compensation in an ink jet printer

Details Scaling aerodynamic compensation in an ink jet printer Scaling aerodynamic compensation in an ink jet printer

1980-06-17

1982-03-23

Miller, Jr., George H.

Recorders

Record receiver deforming

346140R, G01D 1518

Patent

active

043216072

ABSTRACT:
In an ink jet printer, it is desirable to compensate the flight of the ink drops to correct for print errors caused by aerodynamic effects. The apparatus shown herein corrects the flight of ink drops for all aerodynamic effects, drop interactive and environmental. Correction for drop interactive effects can be accomplished in any of several well known ways. The additional correction for environmental effects is accomplished by scaling the drop interactive correction. The scale factor is first determined for static environmental conditions. Environmental conditions include the climate in which the printer operates and the specifications on the component parts of the ink jet printing assembly. The scale factor can be adjusted dynamically for changes in the environment. In particular, changes in air density of the environment are monitored and used to dynamically adjust the scale factor.

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E. E. Bengds et al., "Ink Printer Drop Deflection Programmable Waveform Synthesizer for Charge Compensation", IBM Technical Disclosure Bulletin, vol. 16, No. 11, Apr. 1974, pp. 3550-3552.
N. N. Nguyen, "Storing and Computing the Charge Electrode Voltage Data in a High-Speed Ink Jet Printer", IBM Technical Disclosure Bulletin, vol. 21, No. 4, Sep. 1978, pp. 1540-1542.

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