Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1997-03-06
1998-10-06
Grimley, Arthur T.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 55, 399266, 399291, B41J 239, G03G 1508
Patent
active
058184767
ABSTRACT:
Electrographic printing apparatus for forming a toner image on a recording medium, includes a magnetic brush having a rotatable magnetic core and a stationary outer shell. A developer supply supplies a magnetic developer powder including toner to the magnetic brush. A print head is located on the outer shell of the magnetic brush. The print head includes microchannels or magnetic strips for forming a plurality of parallel lines of developer, and transfer electrodes for selectively transferring toner from two or more locations within each line to a receiver moving relative to the print head. The parallel lines of developer are arranged at an angle with respect to the direction of movement of the receiver, thereby effectively increasing the resolution of the print head in a direction perpendicular to the movement of the receiver. A receiver electrode is arranged in spaced relation to the transfer electrodes to define a recording region through which the receiver is moved.
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A. R. Kotz, "Magnetic Stylus Recording", 1981, Journal of Applied Photographic Engineering 7, pp. 44-49.
Grande William J.
Mey William
Stephany Thomas M.
Tombs Thomas N.
Chen Sophia S.
Close Thomas H.
Eastman Kodak Company
Grimley Arthur T.
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