Patent ID: 8385766

Claim:
An image forming apparatus comprising: an image forming unit which includes a photoconductor and forms an image on a recording medium; an irradiating unit which irradiates the photoconductor with laser light; a first low voltage power supply which generates a first low voltage; a first low voltage power supply line which is connected to the irradiating unit and the first low voltage power supply and supplies the first low voltage from the first low voltage power supply to the irradiating unit; a first switching element which has a control terminal electrically connected to the first low voltage power supply line and generates a first oscillating current; a first high voltage generating unit which is connected to the first switching element and an electrical load of the image forming unit, wherein the first high voltage generating unit supplies a first high voltage to the electrical load of the image forming unit; a first transformer which is included in the first high voltage generating unit and generates the first high voltage by boosting a second low voltage higher than the first low voltage based on the first oscillating current; a second low voltage power supply which is connected to the first transformer and supplies the second low voltage to the first transformer; a control unit which includes an input/output port electrically connected to the first low voltage power supply line and controls the first switching element; a cover which can be opened and closed, wherein the image forming unit detects the opening and closing of the cover; and an interlock switch which interlocks with the opening/closing of the cover and includes a first contact point connected to the first low voltage power supply and a second contact point connected to the first low voltage power supply line, wherein the interlock switch is opened to disconnect the first contact point from the second contact point when the cover is opened.