Image-forming element for an electrostatic printer with helical shaped electrodes
AssigneeOce-Nederland B.V.
InventorsJohannes G. V. van Stiphout, Reinder Pannekoek
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Abstract
An image-forming element for an electrostatic printer is provided with an endless support having thereon a dielectric surface layer and a number of image-forming electrodes beneath the surface of the dielectric layer. In the zone of the image-forming element that is used for image formation, the electrodes extend parallel to one another in the form of helix, having a pitch which is at least equal to the working width of the image-forming element so that each electrode appears only once in a line of the image. Each electrode is connected to a voltage means for supplying voltage to the electrodes. The voltage means is disposed on the surface of the endless support outside the zone used for image formation.
Claims8
An image-forming element for an electrostatic printer comprising:
- an endless support with a dielectric surface layer thereon;
- a plurality of image-forming electrodes provided beneath the dielectric surface layer and extending paralell to one another in a zone of the image-forming element used for image formation, each electrode extending in the form of a helix, the pitch of which is at least equal to the width of the image-forming zone;
- and a voltage means connected to the image-forming electrodes for supplying voltage thereto, the voltage means being disposed on the endless support outside the image-forming zone.
Dependencies are inferred from the claim text.