Recorders – Light or beam recording – Including record receiver or handling means therefor
Patent
1991-03-07
1993-08-17
Fuller, Benjamin R.
Recorders
Light or beam recording
Including record receiver or handling means therefor
G01D 1514
Patent
active
052373398
ABSTRACT:
An electrophotography apparatus for performing exposure and recording of information onto a charged photosensitive body using a line head consisting of an array of a large number of EL elements, developing the information-recorded photosensitive body, and transferring a developed image onto a recording medium, includes a current detection unit for detecting peak values of AC currents flowing through electrodes of the EL elements when the EL elements emit light, and a discriminator for discriminating based on current detection outputs from the current detection means whether or not the EL elements are defective. In this arrangement, the EL elements of the line head are caused to emit light, peak values of AC currents flowing through the electrodes of the EL elements are detected, and whether or not the EL elements are defective is discriminated based on the detected current peak values.
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Patent Abstracts of Japan, vol. 9, No. 118, May 23, 1985, Fujitsu KK, Method For Detecting Defect of Image Sensor.
Fuller Benjamin R.
Tokyo Electric Co. Ltd.
Yockey David
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