摘要:
Method for producing a printed circuit using electrophotography, the method comprising: charging a primary member; creating an electrostatic latent image by image-wise exposing the primary imaging member; image-wise depositing thermoplastic particles onto the primary imaging member; transferring the thermoplastic particles to an electrically insulating substrate; depositing conductive powder over the substrate; permanently fixing the conductive powder on the thermoplastic substrate; and removing conductive powder from portions of the substrate other than that coated with the thermoplastic pattern.
摘要:
Electrographic printing of one or more multi-channeled layers having a particular pattern by electrographic techniques. Such electrographic printing comprises the steps of forming a desired print image, electrographically, on a receiver member utilizing predetermined sized marking particles; and, where desired, forming one or more final multi-channeled layers utilizing marking particles of a predetermined size or size distribution.
摘要:
A process for coating a substrate comprising the sequential steps of (a) providing a transfer sheet provided with a printed powder coating, (b) applying the transfersheet onto the substrate with the powder coating in contact with the substrate, (c)removing the transfer sheet from the powder coatingand (d) curing the powder coating on the substrate.
摘要:
The present invention provides a method of copying an image onto a first carrier (3) by electrostatic deposition and transfer. First a deposition of fine particle powder is provided on a second carrier (1) by first cleaning a working face of the second carrier (1), then creating a latent electrostatic image on the working face of the second carrier (1) and finally converting the latent electrostatic image into a real image by transferring a charged layer of fine particle powder to the working face of the second carrier (1) which carries the latent electrostatic image. The real image is then transferred to a first carrier (3) by electrostatic transfer that is characterised in that the transfer is affected by applying to the second carrier (1) an electrostatic charge of the same polarity as that of the charged layer of the fine particle powder, thereby to repel the charged fine powder from the second carrier (1) and onto the first carrier (3). This method is particularly suited to rapid prototyping whereby a three-dimensional object is built up through the deposition of a plurality of powder layers (8) upon one another and a build plate.
摘要:
ABSTRACT A platesetting system and apparatus for providing computer-to-plate electrophotographic printing to a conductive plate. The apparatus may include an electrophotographic printer adapted to include an electrically isolated media path for receiving a conductive plate. A conductive plate may include anodized and grained aluminum (AL) that does not include a light sensitive emulsion layer in a finished product. The plate may be adapted to include rounded corners. The plate may be adapted to include a protective leading edge. The plate may be fused using the absorbed light of a radiant heat source.
摘要:
The present invention relates to a method and a system for printing predefined prints on a metal plate. The prints are received as instructions by the system e.g. after having been generated using a computer program, and, based on the instruction, a print transfer unit is electrically charged in specific areas corresponding to the instructions. Further, the metal plate is electrically biased, and by using positive and negative bias it is possible to electrostatically transfer powder via the print transfer unit to the metal plate in a pattern similar to the predefined print. The metal plate is placed on a printing table being adjustable to ensure a contact between the print transfer unit and the metal plate. Further, the printing table comprises means for generating a vacuum between the surface of the printing table and the metal plate to ensure that the metal plate lies plane on the printing table.