Image forming apparatus and method of controlling image forming apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorKen Iguchi
Life of this patent
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Abstract
According to one embodiment, an image forming apparatus includes a photosensitive drum, an exposure unit, a development unit, a toner supply motor, and a processor. The exposure unit exposes the photosensitive drum based on image data. The development unit forms a toner image on the photosensitive drum with toner supplied from a toner cartridge. The toner supply motor supplies the toner to the development unit from the toner cartridge. The processor calculates a remaining toner amount in the toner cartridge based on a preset standard supply ratio, a driving time of the toner supply motor, and a toner supply ratio which is calculated based on a pixel count value of the image data and the driving time of the toner supply motor.
Claims20
An image forming apparatus, comprising:
- a photosensitive drum;
- an exposure component configured to expose the photosensitive drum based on image data;
- a development component configured to forma toner image on the photosensitive drum with toner supplied from a toner cartridge;
- a toner supply motor configured to supply the toner to the development component from the toner cartridge;
- and
- a processor configured to calculate a remaining toner amount in the toner cartridge based on a preset standard supply ratio, a driving time of the toner supply motor, and a toner supply ratio which is calculated based on a pixel count value of the image data and the driving time of the toner supply motor.
A method of operating an image forming apparatus including a photosensitive drum, an exposure component that exposes the photosensitive drum based on image data, a development component that forms a toner image on the photosensitive drum with toner supplied from a toner cartridge, a toner supply motor that supplies the toner to the development unit from the toner cartridge, the method comprising:
- calculating a remaining toner amount in the toner cartridge based on a preset standard supply ratio, a driving time of the toner supply motor, and a toner supply ratio which is calculated based on a pixel count value of the image data and the driving time of the toner supply motor.
An image forming apparatus, comprising:
- a photosensitive drum;
- an exposure component configured to expose the photosensitive drum based on image data;
- a development component configured to forma toner image on the photosensitive drum with toner supplied from a toner cartridge;
- a toner supply motor configured to supply the toner to the development component from the toner cartridge;
- and
- a processor configured to calculate a remaining toner amount in the toner cartridge based on a preset standard supply ratio, a pixel count value of the image data, and a toner supply ratio which is calculated based on the pixel count value and a driving time of the toner supply motor.
Dependencies are inferred from the claim text.