Print system and dielectric imaging member

Details Print system and dielectric imaging member Print system and dielectric imaging member

1991-05-24

1993-01-05

Fuller, Benjamin R.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

428212, 4284111, G01D 900

Patent

active

051775034

ABSTRACT:
A dielectric imaging member of a printer receives a latent charge image that is preferably projected as a plurality of charge dots from a multi-electrode printhead. The member has charging characteristics that diminish the normal electric field component at the edge of charge dots deposited on its surface. The dielectric constant of a surface layer of the imaging member decreases with depth, either continuously, or in a stepwise manner. Various printing aberrations, such as voids in grey-scale images, fringing rings about dots, dot spreading and filling between dots are corrected, so that compensating image coding of printhead actuation sequences is not required to deposit a faithful electrostatic latent image.

REFERENCES:
patent: 3712728 (1973-01-01), Whittaker
patent: 3784398 (1974-01-01), Metcalfe et al.
"Limiting Factors of High Resolution and Gray Scale Ionographic Printing" Igor Kubelik, Hard Copy and Printing Technologies, Feb. 13-14, 1990 Conference in Santa Clara, Calif., vol. 1252.

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