Direct electrostatic printer (DEP) and printhead structure there

Details Direct electrostatic printer (DEP) and printhead structure there Direct electrostatic printer (DEP) and printhead structure there

1988-07-29

1989-08-22

Evans, Arthur G.

Recorders

Electric recording

Electrochemical

346155, G01D 1500

Patent

active

048600369

ABSTRACT:
Near letter quality (NLQ) characters are formed using direct electrostatic printing (DEP) by providing a printhead structure containing at least three equally spaced rows of equally spaced and staggered apertures. In the preferred embodiment, the printhead structure includes at least four rows of apertures. The number of rows is equal to the distance between aperture centers divided by the diameter of a spot of toner deposited by each of the apertures.

REFERENCES:
patent: 4568955 (1986-02-01), Hosoya et al.

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