Title: Concentration measuring device of electromagnetic printer
Application Number: 98118301 Application Date: 1998.08.10
Publication Number: 1228547 Publication Date: 1999.09.15
Approval Pub. Date: 2003.03.26 Granted Pub. Date: 2003.03.26
International Classifi-cation: G01N21/59;G03G15/10
Applicant(s) Name: Samsung Electronics Co., Ltd. Address:
Inventor(s) Name: Yong-Baek Yoo
Attorney & Agent: li xiaoshu
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.
Time: 9
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