Method for improving the printing quality and repetition accurac

Details Method for improving the printing quality and repetition accurac Method for improving the printing quality and repetition accurac

1993-05-10

1995-03-28

Miller, Jr., George H.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

342128, G01D 1506

Patent

active

054021588

ABSTRACT:
A latent electrical charge pattern of electrical signals is produced by an electrode matrix. Apertures between the electrodes are opened and closed, respectively, to expose electric fields for the attraction of pigment particles of toner against an information carrier. The electrical charge pattern electrostatically controls the transmission of electrical fields through the apertures of the matrix to attract particles of toner against the information carrier. The apertures are opened and closed by generating electrostatic fields between the electrode layer, particle supply and backing electrode. Each electrode is arranged on a carrier to completely surround one aperture and is individually connected to a voltage source to supply the electrical signals.

REFERENCES:
patent: 4491855 (1985-01-01), Fujii et al.
patent: 5296879 (1994-03-01), Kagayama

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