Recorders – Electric recording – Electrochemical
Patent
1981-06-02
1983-08-30
Tarcza, Thomas H.
Recorders
Electric recording
Electrochemical
3461531, G01D 1500
Patent
active
044020007
ABSTRACT:
An electrographic method and apparatus are provided for maintaining a controlled quantity of electronically conductive toner in the recording region formed between an array of stylus electrodes and a receptor recording member. A regular or relatively uniform supply of toner is provided to said recording region where a temporally constant force is presented which acts on the toner to establish an electronically conductive path via the toner between the electrodes and the recording member. Recording electrical potential signals selectively applied to the first electrodes relative to the recording member cause toner to be deposited on the recording member as image toner. A toner removal means provides a temporally constant force for removing excess accumulated toner from said recording gap to a point where it is out of electronic contact with the toner at the recording gap. Non-image toner removal means positioned at a point remote from the recording region is also disclosed.
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Fabel George W.
Lindahl Richard W.
Alexander Cruzan
Marben Robert L.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Tarcza Thomas H.
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