HIGH VOLTAGE POWER SOURCE DEVICE AND HIGH VOLTAGE POWER SOURCE CONTROL METHOD FOR IMAGE RECORDER

PROBLEM TO BE SOLVED: To prevent a situation that toner excessively adheres to a photoreceptor and a transfer paper becomes black, to prevent a paper from winding to a fixing roller, and to eliminate wasteful toner consumption when high voltage power source output for electrifying the photoreceptor...

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Bibliographische Detailangaben
1. Verfasser:	KIMIZUKA JUNICHI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CINEMATOGRAPHY CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY GENERATION HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent a situation that toner excessively adheres to a photoreceptor and a transfer paper becomes black, to prevent a paper from winding to a fixing roller, and to eliminate wasteful toner consumption when high voltage power source output for electrifying the photoreceptor is lowered with respect to an electrophotographic system image recorder. SOLUTION: A high voltage power source unit 18 including an electrifying power source for electrifying a photoreceptor drum and a developing power source for development is controlled by an image forming control circuit 12, and the output condition of the electrifying power source is monitored by a CPU 13 in electrophotographic process. When the output of the electrifying power source is lowered or used up, the output of the developing power source is interrupted or reduced. At this time, the CPU 13 detects the DC output of the electrifying power source, or detects both a DC component and an AC component, and the detection output is made ineffective in the middle of the rise of the electrifying power source.