Color image forming apparatus with well-registrated imagewise exposure means

A color image forming apparatus comprising:

• a photoreceptor for holding a multicolor toner image thereon;
• a charging device for charging said photoreceptor;
• a plurality of imagewise exposure devices each for imagewisely exposing said photoreceptor, which is charged by said charging device, with light so as to form a latent image corresponding to a component image of said multicolor toner image on said photoreceptor;
• a support member for supporting said plurality of imagewise exposure devices so that said plurality of imagewise exposure devices are fixed on said support member at positions where said light from each of said plurality of imagewise exposure devices is focused on said photoreceptor;
• a plurality of developing devices each for developing said latent image with one of a plurality of color toners so as to form said component image of said multicolor toner image on said photoreceptor;
• and
• a transfer device for transferring said multicolor toner image from said photoreceptor to a transfer member;
• wherein charging of said charging device, exposing of said plurality of imagewise exposure devices, and developing of said plurality of developing devices are performed to form said multicolor toner image on said photoreceptor while said photoreceptor is rotated one time;
• and
• wherein one end of each of said plurality of imagewise exposure devices is fixed on said support member, and another end of each of said plurality of imagewise exposure devices is in an unfixed state.

A color image forming apparatus comprising:

• a photoreceptor for holding a multicolor toner image thereon;
• a charging device for charging said photoreceptor;
• a plurality of imagewise exposure devices each for imagewisely exposing said photoreceptor, which is charged by said charging device, with light so as to form a latent image corresponding to a component image of said multicolor toner image on said photoreceptor;
• a support member for supporting said plurality of imagewise exposure devices so that said plurality of imagewise exposure devices are fixed on said support member at positions where said light from each of said plurality of imagewise exposure devices is focused on said photoreceptor;
• a plurality of developing devices each for developing said latent image with one of a plurality of color toners so as to form said component image of said multicolor toner image on said photoreceptor;
• and
• a transfer device for transferring said multicolor toner image from said photoreceptor to a transfer member;
• wherein charging of said charging device, exposing of said plurality of imagewise exposure devices, and developing of said plurality of developing devices are performed to form said multicolor toner image on said photoreceptor while said photoreceptor is rotated one time;
• and
• wherein a center of each of said plurality of imagewise exposure devices is fixed on said support member, and each end of each of said plurality of imagewise exposure devices is in an unfixed state.

A color image forming apparatus comprising:

• a photoreceptor for holding a multicolor toner image thereon;
• a charging device for charging said photoreceptor;
• a plurality of imagewise exposure devices each for imagewisely exposing said photoreceptor, which is charged by said charging device, with light so as to form a latent image corresponding to a component image of said multicolor toner image on said photoreceptor;
• a support member for supporting said plurality of imagewise exposure devices so that said plurality of imagewise exposure devices are fixed on said support member at positions where said light from each of said plurality of imagewise exposure devices is focused on said photoreceptor;
• a plurality of developing devices each for developing said latent image with one of a plurality of color toners so as to form said component image of said multicolor toner image on said photoreceptor;
• a transfer device for transferring said multicolor toner image from said photoreceptor to a transfer member;
• a pair of flanges, attached to side ends of said photoreceptor, each for supporting a side end of said photoreceptor;
• and
• a plurality of position restriction devices each for restricting a position of each of said plurality of developing devices;
• wherein charging of said charging device, exposing of said plurality of imagewise exposure devices, and developing of said plurality of developing devices are performed to form said multicolor toner image on said photoreceptor while said photoreceptor is rotated one time;
• wherein said imagewise exposure devices are arranged on said support member so that said plurality of imagewise exposure devices are fixed on said support member at positions where said light from each of said plurality of imagewise exposure devices is focused on an outer circumferential surface of said photoreceptor;
• and
• wherein each of said plurality of position restriction devices restricts said position of each of said plurality of developing devices in relation to an outer circumferential surface of said pair of flange.

A color image forming apparatus comprising:

• a photoreceptor for holding a multicolor toner image thereon;
• a charging device for charging said photoreceptor;
• a plurality of imagewise exposure devices each for imagewisely exposing said photoreceptor, which is charged by said charging device, with light so as to form a latent image corresponding to a component image of said multicolor toner image on said photoreceptor;
• a support member for supporting said plurality of imagewise exposure devices so that said plurality of imagewise exposure devices are fixed on said support member at positions where said light from each of said plurality of imagewise exposure devices is focused on said photoreceptor;
• a plurality of developing devices each for developing said latent image with one of a plurality of color toners so as to form said component image of said multicolor toner image on said photoreceptor;
• a transfer device for transferring said multicolor toner image from said photoreceptor to a transfer member;
• a pair of flanges, attached to side ends of said photoreceptor, each for supporting a side end of said photoreceptor;
• and
• a plurality of position restriction devices each for restricting a position of each of said plurality of developing devices;
• wherein charging of said charging device, exposing of said plurality of imagewise exposure devices, and developing of said plurality of developing devices are performed to form said multicolor toner image on said photoreceptor while said photoreceptor is rotated one time;
• wherein said imagewise exposure devices are arranged on said support member so that said plurality of imagewise exposure devices are fixed on said support member at positions where said light from each of said plurality of imagewise exposure devices is focused on an outer circumferential surface of said photoreceptor;
• and
• wherein each of said plurality of position restriction devices restricts said position of each of said plurality of developing devices in relation to said outer circumferential surface of said photoreceptor.

A color image forming apparatus comprising:

• a photoreceptor for holding a multicolor toner image thereon;
• a charging device for charging said photoreceptor;
• a plurality of imagewise exposure devices each for imagewisely exposing said photoreceptor, which is charged by said charging device, with light so as to form a latent image corresponding to a component image of said multicolor toner image on said photoreceptor;
• a support member for supporting said plurality of image exposure devices so that said plurality of imagewise exposure devices are fixed on said support member at positions where said light from each of said plurality of imagewise exposure devices is focused on said photoreceptor;
• a plurality of developing devices each for developing said latent image with one of a plurality of color toners so as to form said component image of said multicolor toner image on said photoreceptor;
• and
• a transfer device for transferring said multicolor toner image from said photoreceptor to a transfer member;
• wherein charging of said charging device, exposing of said plurality of imagewise exposure devices, and developing of said plurality of developing devices are performed to form said multicolor toner image on said photoreceptor while said photoreceptor is rotated one time;
• and
• wherein each of said plurality of imagewise exposure devices is fixed onto said support member through an adjustable pasting member by an adhesive.

A color image forming apparatus comprising:

• a photoreceptor for holding a multicolor toner image thereon;
• a charging device for charging said photoreceptor;
• a plurality of imagewise exposure devices each for imagewisely exposing said photoreceptor, which is charged by said charging device, with light so as to form a latent image corresponding to a component image of said multicolor toner image on said photoreceptor;
• a support member for supporting said plurality of imagewise exposure devices so that said plurality of imagewise exposure devices are fixed on said support member at positions where said light from each of said plurality of imagewise exposure devices is focused on said photoreceptor;
• a plurality of developing devices each for developing said latent image with one of a plurality of color toners so as to form said component image of said multicolor toner image on said photoreceptor;
• and
• a transfer device for transferring said multicolor toner image from said photoreceptor to a transfer member;
• wherein charging of said charging device, exposing of said plurality of imagewise exposure devices, and developing of said plurality of developing devices are performed to form said multicolor toner image on said photoreceptor while said photoreceptor is rotated one time;
• and
• wherein said photoreceptor has a drum shaped body which rotates around an axis, and said support member is concentric with the axis and is symmetrically shaped with respect to the axis.