Image forming apparatus with end of operating lifetime controller
AssigneeBrother Kogyo Kabushiki Kaisha
InventorHaruyuki Shimomura
Life of this patent
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Abstract
An image forming apparatus having a photosensitive member, an exposure device having a laser emitting element that irradiates a laser beam, the laser beam being scanned on the photosensitive member line by line to form an electrostatic latent image on the photosensitive member, a developing device that supplies a developing agent to the electrostatic latent image to form a visible image, and a controller that controls the laser emitting element to irradiate the laser beam in a predetermined light amount. The controller further controls the laser emitting element to irradiate the laser beam in a reduced light amount every at least one line.
Claims19
An image forming apparatus, comprising:
- a photosensitive member;
- an exposure device including at least two laser emitting elements irradiating laser beams capable of irradiating lines of the number of the laser emitting elements, the laser beams being scanned at a same time on the photosensitive member line by line to form an electrostatic latent image on the photosensitive member;
- a developing device that supplies a developing agent to the electrostatic latent image to form a visible image;
- and
- a controller that controls the at least two laser emitting elements to irradiate the laser beams in a predetermined light amount;
- wherein the controller further controls at least one of the at least two laser emitting elements to irradiate the laser beam in a reduced light amount every at least one line.
An image forming apparatus, comprising:
- a photosensitive member;
- an exposure device including at least two laser emitting elements, each laser emitting element being capable to irradiate a laser beam, the laser beam from each one of the at least two laser emitting elements being scanned at a same time on the photosensitive member line by line to form an electrostatic latent image on the photosensitive member;
- a developing device that supplies a developing agent to the electrostatic latent image to form a visible image;
- and
- a controller that controls one or more of the at least two laser emitting elements to irradiate the laser beam in a predetermined light amount;
- wherein the controller further controls one or more of the at least two laser emitting elements to irradiate the laser beam in a reduced light amount every at least one line.
Dependencies are inferred from the claim text.