Image forming apparatus and power supply control method
AssigneeRicoh Company, Ltd.
InventorNorikazu Okada
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes a cover, a switch that opens or closes in conjunction with the cover, a load unit, a load power supply device that supplies power to the load unit, a relay that passes power from the load power supply device to the load unit in conjunction with the switch, and a controller that detects opening or closing of the switch and controls the load power supply device according to a detection result. When opening of the switch is detected, the load power supply device is controlled to interrupt supplying power to the load unit until closing of the switch is detected.
Claims20
An image forming apparatus, comprising:
- a cover configured to open or close;
- an interlock switch configured to open or close in conjunction with opening or closing of the cover;
- a power supply device configured to generate a predetermined voltage for supplying power to a load unit;
- an interlock relay configured to open or close a contact disposed on a power supply line between the power supply device and the load unit by connecting the power supply device and the load unit in conjunction with opening or closing of the switch;
- and
- a controller configured to detect opening or closing of the interlock switch and to control the power supply device according to a detection result, wherein when detecting opening of the interlock switch, the controller controls the power supply device to stop generating the predetermined voltage by turning off the power supply device, and the controller controls the power supply device to resume generating the predetermined voltage after detecting closing of the interlock switch.
An image forming apparatus including a cover that can be opened or closed and a switch that opens or closes in conjunction with opening or closing of the cover, comprising:
- a driving means for driving the image forming apparatus;
- a power supplying means for generating a predetermined voltage for supplying power to the driving means;
- a relaying means for passing power from the power supplying means to the driving means by connecting the power supplying means and the driving means in conjunction with opening or closing of the switch;
- and
- a controlling means for detecting opening or closing of the cover and controlling the power supplying means according to a detection result, wherein when detecting opening of the cover, the controlling means controls the power supplying means to stop generating the predetermined voltage by turning off the power supplying means until detecting closing of the cover.
A method of controlling power in an image forming apparatus including:
- a cover configured to open or close;
- an interlock switch configured to open or close in conjunction with opening or closing of the cover;
- a power supply device configured to generate a predetermined voltage for supplying power to a load unit, the method comprising:
- passing power from the power supply device to the load unit by connecting the power supply device and the load unit in conjunction with opening or closing of the switch;
- detecting opening or closing of the interlock switch;
- and
- controlling the power supply device according to a detection result, wherein
- when opening of the switch is detected, the power supply device is controlled to stop generating the predetermined voltage by turning off the power supply device until closing of the switch is detected.
Dependencies are inferred from the claim text.