Direct printing method utilizing continuous deflection and a dev

Details Direct printing method utilizing continuous deflection and a dev Direct printing method utilizing continuous deflection and a dev

1996-09-13

1998-06-30

Smith, Matthew S.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347141, 347147, 347148, B41J 239, B41J 2395, B41J 240

Patent

active

057741590

ABSTRACT:
An apparatus and method provide direct electrostatic printing onto an information carrier. Computer-generated electronic signals define an image and are converted to a pattern of electrostatic fields to selectively control the deposition of charged toner particles in an image configuration directly onto the information carrier. The electrostatic fields are applied via a set of print electrodes which selectively permit or restrict the transport of the charged toner particles from a particle source toward the information carrier. Periodically variable deflection potentials are applied to a set of deflection electrodes to modify the trajectories of the toner particles as they are transported toward the information carrier to direct the toner particles in a direction transverse to the direction of the movement of the information carrier.

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