High-tension power supply for an image recorder
AssigneeRicoh Company, Ltd.
InventorTsunehide Takahashi
Life of this patent
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Abstract
A high-tension power supply applicable to an electrophotographic image recorder switches a DC voltage, boosts the switched DC voltage by a transformer, and outputs a high DC or AC voltage through a high-voltage side and a low-voltage side terminal which are connected to a secondary winding of the transformer. A diode or diodes are connected between the low-voltage side terminal and a ground terminal. An ammeter may be connected between the low-voltage side and ground terminals to measure an output current of the power supply.
Claims3
A high-tension power supply supplied with a DC voltage for outputting a high DC voltage or a high AC voltage comprising:
- switching means for switching the supplied DC voltage;
- a transformer for boosting the switched voltage;
- terminal means having a high-voltage side output terminal, a low-voltage side output terminal, and a ground terminal which are connected to a secondary winding of said transformer;
- and
- diode means connected between said low-voltage side terminal and said ground terminal;
- said low-voltage side terminal and said ground terminal constituting a connection for an ammeter;
- said diode means having a forward potential higher than a potential difference of said ammeter.
Dependencies are inferred from the claim text.