Image forming apparatus, control program, and method for controlling luminance of the image forming apparatus
AssigneeSharp Kabushiki Kaisha
InventorHisashi Kawahara
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes a display, a human detection sensor, and a CPU. If the CPU determines that there is a person in a certain area with the display in an off state, the display enters a first on state in accordance with an instruction from the CPU. If the CPU determines that the image forming apparatus has been operated, the display enters a second on state.
Claims6
An image forming apparatus comprising:
- a processor comprising:
- a display unit;
- a presence determination unit that determines whether there is a person in an area set around the image forming apparatus;
- an operation determination unit that determines whether the image forming apparatus has been operated;
- and
- a light controlling unit that, if the presence determination unit determines that there is a person in the area with the display unit in an off state, establishes a first on state or a second on state, wherein luminance of the display unit is controlled by (i) an amount of light emitted from a backlight, (ii) a light transmittance of a liquid crystal panel, or (iii) an image displayed on the display.
A control program computer-executable control program stored in a non-transitory computer readable storage medium for an image forming apparatus including a display unit, the computer-executable control program stored in a non-transitory computer readable storage medium causing a computer of the image forming apparatus to function as:
- a presence determination unit that determines whether there is a person in an area set around the image forming apparatus;
- an operation determination unit that determines whether the image forming apparatus has been operated;
- and
- a light controlling unit that, if the presence determination unit determines that there is a person in the area with the display unit in an off state, establishes a first on state or a second on state, wherein luminance of the display unit is controlled by (i) an amount of light emitted from a backlight, (ii) a light transmittance of a liquid crystal panel, or (iii) an image displayed on the display.
A method for controlling an image forming apparatus including a display unit, a computer of the image forming apparatus performing operations comprising:
- (a) determining whether there is a person in an area set around the image forming apparatus;
- (b) determining whether the image forming apparatus has been operated;
- and
- (c) establishing, if it is determined in (a) that there is a person in the area with the display unit in an off state, a first on state or a second on state, wherein luminance of the display unit is controlled by (i) an amount of light emitted from a backlight, (ii) a light transmittance of a liquid crystal panel, or (iii) an image displayed on the display.
Dependencies are inferred from the claim text.