摘要:
A method and apparatus for manufacturing a printed wiring board having circuits on both sides from an object to be developed which comprises an insulating substrate and at least metal conductive layers and photoconductive layers in order of mention on both sides of the insulating substrate, wherein an electrostatic latent image can be formed at a required position on the board with high precision and a uniform and satisfactory image can be formed. The object is placed by an object supplying means. Then, the object is aligned by an aligning means, and one side of the object is charged by a charging means. Alternatively both sides of the object are charged by the charging means and the object is aligned by the aligning means. In both cases, after a first electrostatic latent image is formed on charged side by an exposing means, the exposed surface is subjected to toner development if necessary. Then the object is turned over by an object turn-over means, aligned, and charged if necessary. Next, a second electrostatic latent image is formed by exposing the side opposite to the side on which the first electrostatic latent image is formed, and the exposed side is subjected to toner development, thus forming toner images corresponding to the wiring patterns on both sides of the object.
摘要:
A photosensitive printing plate supplying apparatus for supplying a photosensitive printing plate to an automatic plate making machine for a photosensitive printing plate is disclosed. This photosensitive printing plate supplying apparatus: includes a printing plate packaging device which accommodates a bundle of photosensitive printing plates; a printing plate accommodating portion to which the printing plate packaging device is removably attached and which can completely shield light from the exterior; and a taking-out/conveying device which takes out the photosensitive printing plates from an interior of the printing plate packaging device in the light-shielded accommodation portion and conveys the photosensitive printing plates to a predetermined position. When the printing plate packaging means has an opening/closing lid, the photosensitive printing plate supplying apparatus may further include a lid opening/closing device. In this case, the lid opening/closing device operates in an interlocking manner with the taking-out/conveying device. The opening/closing lid of a take-out port of the printing plate packaging device is opened when taking-out operation by the taking-out/conveying device is started, and is closed when the taking-out operation is completed. Moreover, a jutting-out portion may be provided in the printing plate packaging device such that the jutting-out portion juts out of the printing plate supplying apparatus when the printing plate packaging device is loaded into the photosensitive printing plate supplying apparatus in the light-shielded state. In this case, the photosensitive printing plate is exposed within the supplying apparatus by pulling the jutting-out portion and then can be taken out.
摘要:
Axial length of a center roller ( subroller ) 30 is sufficiently shortened than axial length of a main roller 28, and the center roller 30 is placed so that an axial of the center roller 30 is parallel to an axial of the main roller 28 in a base position and so that a nipping pressure is generated in the center position in the axial direction of the main roller 28. Therefore, a film (sheet) 20 is subjected to a tension in the center portion thereof due to the pulling force of the center roller 30, and therefore, the feeding amount of the film 20 at the left and right portions vary with each other. Then, the film 20 displaces in the axial direction of the main roller 28 around the center roller 30.
摘要:
An image forming apparatus including an image receiving sheet transport system in which a photosensitive sheet(2) and an image receiving sheet(7) are pressed together to form an image on the image receiving sheet(7) which is then transported to a glosser unit(11) at a slower speed than the transporting speed of the image receiving sheet(7) by a pressure developing device(5) and the glosser unit(11), the image receiving sheet(7) being temporarily buckled between the pressure developing device(5) and the transport device(10), and then being taken up by the glosser unit(11). The image receiving sheet(7) is smoothly pulled by a one-way clutch(15a,15b) in the direction in which it is stretched.
摘要:
An electrostatic recording apparatus for recording, developing and fixing an image on a sheet of recording paper comprises an electrostatic recording head 21 and a roller 22 for forming an electrostatic image on the sheet of recording paper while the latter travels between the electrostatic recording head ' 21 and the roller 22. The electrostatic recording head 21 and the roller 22 are relatively movable toward each other for pressing the sheet of recording paper against the electrostatic recording head 21 during a period of time in which the sheet of recording paper travels between the electrostatic recording head 21 and the roller 22 to allow the electrostatic recording head 21 to form the electrostatic image on the sheet of recording paper. The electrostatic recording head 21 and the roller 22 are relatively displaceable away from each other during a period of time other than the above period of time.
摘要:
An aspect of the invention is related to an erasable image receiving medium comprising: a substrate comprising paper or film; and a coating providing an image receiving surface on the substrate, the coating able to (i) receive a marking agent forming an image on the image receiving surface and (ii) allow the marking agent to be selectively removed from the image receiving surface in response to an applied erasing operation, wherein the image receiving surface exhibits a kinetic coefficient of friction while moving at about 6 in/min relative to a stainless steel plate, of less than about 0.3, and the medium exhibits a surface resistivity of between about 10 6 to about 10 13 Ohm/Square, and the coating comprises at least one of silicones, fluorocarbons, olefins, long chain hydrocarbons, amides, and waxes; a method of using an erasable image receiving medium; a corresponding system and an erasable marking agent.
摘要:
The present invention provides a printing medium, a printing method, and a printing apparatus using a photonic crystal characteristic. According to the present invention, the printing medium using the photonic crystal characteristic comprises a medium in which a plurality of particles having electric charges are dispersed, wherein the inter-particle distances of the particles are controlled as a result of at least one of electric fields and magnetic fields are applied to the medium, and the inter-particle distances of the particles are fixed as the energy is applied to the medium.
摘要:
A low cost, high speed, high resolution laser printer method and apparatus for rewritable media is presented. Three aspects are presented: 1) a bi-stable, microencapsulated dichroic sphere colorant and surface coating therefor for producing an electric field writable and erasable medium - such as paper or a paper-like display, 2) an electrophotographic printer that is capable of conventional toner-based printing and rewritable 'paper' printing and 3) a greatly simplified electrophotographic printer that is dedicated to printing rewritable media. The printer embodiments are based on conventional low cost laser printer designs, and have significant advantages in product cost, printing resolution and speed over the electrode array printer. A laser scanner (220) is used to writably erase the uniform, high voltage charge deposited on the surface of a photoconductor drum or belt (210). When the rewritable paper (140) is brought in contact with the charge written photoconductor (210) through a bias backed roller (250), fields generated between the photoconductor (210) and the back electrode (250) cause color rotation of the dichroic spheres (100) to develop the desired print image.
摘要:
A photosensitive printing plate supplying apparatus for supplying a photosensitive printing plate to an automatic plate making machine for a photosensitive printing plate is disclosed. This photosensitive printing plate supplying apparatus: includes a printing plate packaging device which accommodates a bundle of photosensitive printing plates; a printing plate accommodating portion to which the printing plate packaging device is removably attached and which can completely shield light from the exterior; and a taking-out/conveying device which takes out the photosensitive printing plates from an interior of the printing plate packaging device in the light-shielded accommodation portion and conveys the photosensitive printing plates to a predetermined position. When the printing plate packaging means has an opening/closing lid, the photosensitive printing plate supplying apparatus may further include a lid opening/closing device. In this case, the lid opening/closing device operates in an interlocking manner with the taking-out/conveying device. The opening/closing lid of a take-out port of the printing plate packaging device is opened when taking-out operation by the taking-out/conveying device is started, and is closed when the taking-out operation is completed. Moreover, a jutting-out portion may be provided in the printing plate packaging device such that the jutting-out portion juts out of the printing plate supplying apparatus when the printing plate packaging device is loaded into the photosensitive printing plate supplying apparatus in the light-shielded state. In this case, the photosensitive printing plate is exposed within the supplying apparatus by pulling the jutting-out portion and then can be taken out.