Image forming apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorKoji Tanimoto
Life of this patent
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Abstract
An image forming apparatus can include a print head, a detector, a controller, and a power source. The print head includes one or more light emitting element rows, each light emitting element row composed of a plurality of light emitting elements. The detector detects the number of light emitting elements that emit light according to image data. The controller controls a driving voltage for driving the light emitting element based on a detection result. The power source supplies the driving voltage to the print head.
Claims20
An image forming apparatus comprising:
- a print head configured to include one or more light emitting element rows, each light emitting element row composed of a plurality of light emitting elements;
- a detector configured to detect a number of light emitting elements that emit light according to image data;
- a controller configured to control a driving voltage for driving the light emitting element based on the number of light emitting elements detected;
- and
- a power source configured to supply the driving voltage to the print head.
An image forming apparatus comprising:
- a plurality of print heads configured to include one or more light emitting element rows, each light emitting element row composed of a plurality of light emitting elements, each of the plurality of print heads corresponding to a color;
- a detector configured to detect a number of light emitting elements that emit light according to image data corresponding to the color for each print head;
- a controller configured to control a driving voltage for driving the plurality of light emitting elements based on the number of light emitting elements that emit light in each print head;
- and
- a power source configured to supply the driving voltage to each print head.
A method of determining driving voltage in an image forming apparatus, the method comprising:
- detecting, in one or more print heads, a number of light emitting elements that emit light from the one or more print heads according to image data corresponding to a color;
- determining a driving voltage for driving the light emitting elements according to the number of light emitting elements;
- and
- supplying the driving voltage to the one or more print heads.
Dependencies are inferred from the claim text.