Image forming apparatus
AssigneeSharp Kabushiki Kaisha
InventorHiroshi ISHII
Life of this patent
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Abstract
An image forming apparatus includes a photoreceptor drum, a charging part, an exposure unit, a developing part which feeds a photoreactive toner, a color formation exposure part, a transfer part, a recording medium feeding part, a fixing part, and a control unit part 700 which controls operations of the above elements. The control unit part controls such that a photoreactive toner processed so as not to develop a color is transferred to a recording medium having transferred or fixed thereto a toner image processed so as to develop a color, and a photoreactive toner processed so as not to develop a color is fixed to an image formed on the recording medium, thereby forming a transparent toner coat layer which is a colorless and transparent toner layer.
Claims9
An image forming apparatus comprising:
- a photoreceptor having a photosensitive layer;
- a charging device which charges the photoreceptor;
- an exposure device which exposes the charged photoreceptor to light, thereby forming an electrostatic latent image on a surface of the photoreceptor;
- a first developing device which feeds a photoreactive toner which produces a given color by being irradiated with given light and further being heated, to the electrostatic latent image, thereby forming a toner image on a surface of the photoreceptor;
- a color formation exposure device which exposes the photoreactive toner forming the toner image with given light;
- a transfer device which transfers the toner image to a recording medium;
- a fixing device which fixes the toner image transferred to the recording medium, onto the recording medium by heating the recording medium, thereby forming an image on the recording medium;
- and
- a control device which controls operations of the photoreceptor, the charging device, the exposure device, the first developing device, the color formation exposure device, the transfer device and the fixing device,
- the control device carrying out control such that a photoreactive toner processed so as not to develop a color is transferred to a recording medium having transferred or fixed thereto a toner image processed so as to develop a color, and the photoreactive toner processed so as not to develop a color is fixed to an image formed on the recording medium, thereby forming a transparent toner coat layer which is a colorless and transparent toner layer.
An image forming apparatus comprising:
- a photoreceptor having a photosensitive layer;
- a charging device which charges the photoreceptor;
- an exposure device which exposes the charged photoreceptor to light, thereby forming an electrostatic latent image on a surface of the photoreceptor;
- a chromatic toner developing device which feeds a chromatic toner being a toner for forming an image to the electrostatic latent image, thereby forming a chromatic toner image on a surface of the photoreceptor;
- a transparent toner developing device which feeds a transparent toner being a toner for forming a transparent toner coat layer which is a colorless and transparent toner layer to the electrostatic latent image, thereby forming a transparent toner image on a surface of the photoreceptor;
- a chromatic toner image transfer device which transfers the chromatic toner image to a recording medium;
- a transparent toner image transfer device which transfers the transparent toner image to the recoding medium;
- a fixing device which fixes the chromatic toner image to the recording medium by heating the recording medium having transferred thereto the chromatic toner image, thereby forming an image on the recording medium;
- and
- a control device which controls operations of the photoreceptor, the charging device, the exposure device, the chromatic toner developing device, the transparent toner developing device, the chromatic toner image transfer device, the transparent toner image transfer device and the fixing device,
- the control device carrying out control such that the transparent toner image is transferred to the recording medium having the chromatic toner image transferred or fixed thereto and the transparent toner image is fixed to an image formed on the recoding medium, thereby forming a transparent toner coat layer which is a colorless and transparent toner layer.
Dependencies are inferred from the claim text.