Electrostatic printing apparatus
AssigneeNippon Steel Corporation
InventorsMasahiko Itaya, Hiroyuki Nakagoshi, Tsutomu Sasaki
Life of this patent
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Abstract
An electrostatic printing apparatus is arranged to generate an electrostatic latent image on an image supporting medium having an insulating releasing layer and a resin thin film layer formed successively on an electrically conductive substrate, to generate a toner image on the resin thin film layer by developing the electrostatic latent image with a toner solution, and to transfer the toner image together with the resin thin film layer to a recording medium by superposing the recording medium on the resin thin film layer of the image supporting medium with the toner image formed on the resin thin film layer and pressing and heating at a temperature higher than the glass transition temperature of the resin thin film layer.
Claims11
An electrostatic printing apparatus comprising:
- rotary means driven for rotation;
- a cut sheet of image supporting medium having a predetermined length, wound onto said rotary means to be rotated therewith, said image supporting medium including an insulating releasing layer and a resin thin film successively formed on an electrical conductive substrate;
- means for generating an electrostatic image on said cut sheet of image supporting medium wound on said rotary means as driven;
- means for generating a toner image on said resin thin film of said cut sheet of image supporting medium wound on said rotary means by developing said electrostatic latent image with a toner solution;
- and
- means for transferring said toner image together with said resin thin film to a recording medium by superimposing said recording medium on said resin thin film of said cut sheet of image supporting medium, said cut sheet being separated from said rotary means after development, and by applying a pressure thereto while heating at a temperature higher than a glass transition temperature of said resin thin film.
An electrostatic printing apparatus comprising:
- image-supporting medium supplying means for supplying at least one of:
- (a) a first image supporting medium having an insulating releasing layer and a peel-off layer formed successively on an electrical conductive substrate;
- and
- (b) a second image-supporting medium having an insulating resin layer formed on an electrically conductive substrate;
- rotary means driven for rotation with a cut sheet wound thereon said cut sheet having a predetermined length and including one of said first image-supporting medium and said second image-supporting medium supplied from said image-supporting medium supplying means;
- means for generating an electrostatic latent image on said cut sheet of image-supporting medium wound on said rotary means as driven;
- means for developing said electrostatic latent image formed on said cut sheet of image-supporting medium with a toner solution so that toner image is formed (1) on said peel-off layer when said image supporting medium is said first image supporting medium or (2) on said resin layer when said image-supporting medium is said second image supporting medium;
- and
- means for transferring said toner image together with said peel-off layer to a recording medium by superimposing said recording medium on said peel off layer of said cut sheet of image-supporting medium, said cut sheet being separated from said rotary means after development, and by applying a pressure thereto while heating when said image supporting medium is said first image supporting medium, and means for fixing said toner image formed on said resin layer by directly heating said image-supporting medium when said image supporting medium is said second image supporting medium.
A method of generating a printed image comprising:
- providing an image-supporting medium comprising in sequence, a substrate, an insulating releasing layer on said substrate, and a resin thin film on said insulating layer;
- providing rotary means for rotation with a cut sheet of said image-supporting medium wound thereon;
- generating an electrostatic latent image on said cut sheet of said image-supporting medium wound on said rotary means as driven;
- developing the resulting latent image with a toner solution to generate a toner image;
- superimposing a recording medium on said cut sheet of said image-supporting medium to transfer said toner image to said recording medium;
- and
- applying pressure to the resulting composite of recording medium and image-supporting medium while heating said composite at a temperature higher than a glass transition temperature of said resin thin film.
A method of generating a printed image comprising:
- providing an image-supporting medium having an insulating resin layer formed on an electrically conductive substrate;
- providing rotary means for rotation of a cut sheet of said image-supporting medium wound thereon;
- generating an electrostatic latent image on said cut sheet of said image-supporting medium wound on said rotary means as driven;
- developing the resulting latent image on said image-supporting medium with a toner solution to generate a toner image;
- and
- heating the developed toner image to fix said image on said insulating resin layer.
Dependencies are inferred from the claim text.