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US 5,953,042 AGranted
Deflecting scanning apparatus
AssigneeCanon Kabushiki Kaisha
InventorsNoboru Nabeta, Yasuo Suzuki, Yoshitaka Noh
Life of this patent
Estimating the term…
Abstract
A deflecting/scanning apparatus includes a deflector for deflecting/scanning a light beam from a light source unit, an optical system for focusing the light beam deflected/scanned by the deflector onto a surface, an optical box for accommodating the deflector and the optical system, and a cover for covering the optical box. An elastic member is disposed in the optical box so as to blocking flow of air entering therein. At least a portion of the elastic member is fitted in a recess portion formed on at least one of the optical box and the cover so that the elastic member is pressed by the cover.
Claims58
A deflecting/scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- a cover for covering said optical box;
- a recess portion formed in at least one of said optical box and said cover;
- and
- an elastic member disposed in said optical box to block an air, said elastic member having at least a portion which is fitted in said recess portion, and said elastic member being pressed by said cover.
5 more elements
A deflecting/scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- a cover for covering said optical box;
- dustproof means for preventing dust from entering a space portion, in which said deflector is housed, via said optical system, said dustproof means comprising a barrier integrally formed with a bottom wall of said optical box near said optical system.
3 more elements
A laser beam printer apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- a cover for covering said optical box;
- a recess portion formed in at least one of said optical box and said cover;
- an elastic member disposed in said optical box to block an air, said elastic member having at least a portion which is fitted in said recess portion, and said elastic member being pressed by said cover;
- and
- a photosensitive member for receiving the light beam deflected/scanned by said deflector.
6 more elements
A laser beam printer apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- a cover for covering said optical box;
- dustproof means for preventing dust from entering a space portion, in which said deflector is housed, via said optical system, said dustproof means comprising a barrier integrally formed with a bottom wall of said optical box near said optical system;
- and
- a photosensitive member for receiving the light beam deflected/scanned by said deflector.
5 more elements
A deflecting/scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam from said light source unit onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- a cover for covering said optical box;
- a recess portion formed in at least one of said optical box and said cover;
- and
- an elastic member disposed in said optical box to block flow of air, said elastic member having at least a portion which is fitted in said recess portion, and said elastic member being pressed by said cover.
5 more elements
A deflecting/scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam from said light source unit onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- a cover for covering said optical box;
- and
- dustproof means for preventing dust from entering a space portion, in which said deflector is housed, via said optical system, said dustproof means comprising a barrier integrally formed with a bottom wall of said optical box near said optical system.
4 more elements
A laser beam printer apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam from said light source unit onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- a cover fox covering said optical box;
- a recess portion formed in at least one of said optical box and said cover;
- an elastic member disposed in said optical box to block flow of air, said elastic member having at least a portion which is fitted in said recess portion, and said elastic member being pressed by said cover, and a photosensitive member for receiving the light beam deflected/scanned by said deflector.
4 more elements
A laser beam printer apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam from said light source unit onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- a cover for covering said optical box;
- dustproof means for preventing dust from entering a space portion, in which said deflector is housed, via said optical system, said dustproof means compromising a barrier integrally formed with a bottom wall of said optical box near said optical system;
- and
- a photosensitive member for receiving the light beam deflected/scanned by said deflector.
5 more elements
A deflecting/scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- and
- an elastic member disposed in said optical box to block flow of air, said elastic member being provided between a side wall of said optical box and said optical system.
3 more elements
A deflecting/scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- and
- an elastic member disposed in said optical box to block flow of air, said elastic member being provided between a projecting portion of said optical box and said optical system.
3 more elements
A deflecting/scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- and
- an elastic member disposed in said optical box to block flow of air, said elastic member sealing a gap between a side surface of said optical box and a side surface of said optical system.
3 more elements
A laser beam printer apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- an elastic member disposed in said optical box to block flow of air, said elastic member being provided between a side wall of said optical box and said optical system;
- and
- a photosensitive member for receiving the light beam deflected/scanned by said deflector.
4 more elements
A laser beam printer apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- an elastic member disposed in said optical box to block flow of air, said elastic member being provided between a projecting portion of said optical box and said optical system;
- and a photosensitive member for receiving the light beam deflected/scanned by said deflector.
3 more elements
A laser beam printer apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected/scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system;
- an elastic member disposed in said optical box to block flow of air, said elastic member sealing a gap between a side surface of said optical box and a side surface of said optical system;
- and
- a photosensitive member for receiving the light beam deflected/scanned by said deflector.
4 more elements
A deflecting/scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected and scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system, said optical box including a window through which the light beam deflected and scanned by said deflector is taken out;
- and
- an elastic member disposed in said optical box to block a flow of air from said window in association with a rotation of said deflector.
3 more elements
A laser beam printer apparatus comprising;
- a light source unit;
- a deflector for deflecting/scanning a light beam from said light source unit;
- an optical system for focusing the light beam deflected and scanned by said deflector onto a predetermined surface;
- an optical box incorporating said deflector and said optical system, said optical box including a window through which the light beam deflected and scanned by said deflector is taken out;
- an elastic member disposed in said optical box to block a flow of air from said window in association with a rotation of said deflector;
- and
- a photosensitive member for receiving the light beam deflected and scanned by said deflector.
4 more elements
Dependencies are inferred from the claim text.