Image forming apparatus and process cartridge detachably attachable to the same
AssigneeCanon Kabushiki Kaisha
InventorsKanji Yokomori, Tachio Kawai
Life of this patent
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Abstract
A process cartridge which is detachably attachable to an image forming apparatus main body and which has a photosensitive drum is provided with a light guide. This light guide guides light from an LED lamp provided in the image forming apparatus main body to the surface of the photosensitive drum, thus forming a charge removing device for the photosensitive drum. Therefore, it is possible to provide an image forming apparatus and a process cartridge free from image problems, such as lateral stripes and a drum positive ghost, at a low cost.
Claims51
An image forming apparatus comprising:
- a light source mounted on a main body of said apparatus;
- and
- a process cartridge detachably attachable to the main body of said apparatus,
- wherein said process cartridge has a photosensitive member configured to bear an image and light guide means for guiding light, and
- wherein said light guide means has a reflection means for reflecting light from said light source toward said photosensitive member.
A process cartridge which is detachably attachable to a main body of an image forming apparatus, comprising:
- a photosensitive member;
- and
- light guide means for guiding light,
- wherein said light guide means has reflection means for reflecting light toward said photosensitive member.
An image forming apparatus comprising:
- a light source mounted on a main body of said apparatus;
- and
- a process cartridge detachably attachable to the main body of said apparatus,
- wherein said process cartridge has a rotatable photosensitive member and light guide means for guiding light, and
- wherein said light guide means changes the direction of light from said light source to said photosensitive member.
A process cartridge which is detachably attachable to a main body of an image forming apparatus, comprising:
- a photosensitive member configured to bear an image;
- and
- light guide means for guiding light,
- wherein said light guide means changes the direction of light from a light source mounted to the main body of the apparatus to said photosensitive member.
Dependencies are inferred from the claim text.