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US 2007/0166073 A1Published application
Image forming unit and moving unit
AssigneeRicoh Company, Ltd.
InventorsRyoh IDEHARA, Nobuhiko Kita, Kazuyoshi Kondo, Tadashi Okano, Genta Hagiwara, Kaoru Tada
Life of this patent
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Abstract
An image forming apparatus includes a cover frame that holds a held shaft of an optical writing unit to allow a free movement thereof and urges the optical writing unit in a predetermined direction by using an urging coil spring to bring the held portion shaft of the optical writing unit separated from the writing operation position into contact with a contact target portion thereof.
Claims11
An image forming apparatus comprising:
- a latent image carrier that carries a latent image on an endlessly moving surface;
- a latent-image writing unit that writes the latent image on the surface;
- a holder that moves between a first position and a second position while holding the latent-image writing unit to move the latent-image writing unit held by itself between a writing operation position and a retracted position;
- and
- a developing unit that develops the latent image carried by the latent image carrier,
- wherein the holder holds a held portion provided in the latent-image writing unit to allow a free movement thereof and urges the latent-image writing unit in a predetermined direction by an urging unit, thereby bringing the held portion in the latent-image writing unit into contact with a contact target portion of the holder when separated from the writing operation position.
3 more elements
A moving unit for use in an image forming apparatus, the moving unit comprising:
- a latent image carrier that carries a latent image on an endlessly moving surface;
- a latent-image writing unit that writes the latent image on the surface;
- and
- a holder that moves between a first position and a second position while holding the latent-image writing unit to move the latent-image writing unit held by itself between a writing operation position and a retracted position, wherein
- the holder holds a held portion provided in the latent-image writing unit to allow a free movement thereof and urges the latent-image writing unit in a predetermined direction by an urging unit, thereby ringing the held portion in the latent-image writing unit into contact with a contact target portion of the holder when separated from the writing operation position.
2 more elements
Dependencies are inferred from the claim text.