Electrophotography – Control of electrophotography process – Control of developing
Patent
1998-06-15
1999-04-27
Smith, Matthew S.
Electrophotography
Control of electrophotography process
Control of developing
399 30, 399 57, 118691, G03G 1510
Patent
active
058972404
ABSTRACT:
A concentration measuring device, in an electrographic printer, for measuring the concentration of developer liquid supplied from a mixing container to a development device. The concentration measuring device includes a variable thickness body installed between the mixing container and the development device for changing the thickness of a developer liquid passage for light to transmit; a light emitting device installed a predetermined distance from one side of the variable thickness body for emitting light; and a light detector installed a predetermined distance from the other side of the variable thickness body for detecting the light from the light emitting device and measuring the concentration of developer liquid according to the amount of received light.
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Samsung Electronics Co,. Ltd.
Smith Matthew S.
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