Recorders – Electric recording – Electrochemical
Patent
1991-10-03
1993-07-20
Fuller, Benjamin R.
Recorders
Electric recording
Electrochemical
346159, G01D 1506
Patent
active
052297942
ABSTRACT:
The invention relates to an image recording apparatus which directly controls a flow of toner particles for recording an image on a recording medium. The image recording apparatus of the invention, for recording an image on an image recording medium according to an image signal, has a toner particle supplying portion for supplying charged toner particles and a control electrode for directly controlling the flow of toner particles supplied from the toner particles supplying portion. The control electrode has a first electrode layer which has a thin board-like shape. The first electrode layer is provided on a base insulating material of the control electrode and is disposed facing to the toner particles supplying portion with a predetermined space therebetween. A first voltage power supply supplies a predetermined voltage, having at opposite polarity to that of the charged toner particles, to the first electrode layer. On the opposite side of the base insulating material is a second electrode layer made up of multiple independent electrodes. Each of the independent electrodes is supplied with a second voltage that is either larger or smaller than the predetermined voltage. A plurality of apertures, equal in number to the number of independent electrodes, that pass through the first electrode layer, the base insulating material and an associated independent electrode have an electrical field established therein that either pass or repel the charged toner particles to produce high density contrast images.
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Honma Yoshiyasu
Kitamura Tetsuya
Brother Kogyo Kabushiki Kaisha
Fuller Benjamin R.
Gibson Randy W.
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