Direct electrostatic printing method and apparatus
A kind of technology of equipment and printing head, which is applied in the direction of optomechanical equipment, equipment of electric recording technology using charge pattern, microlithography exposure equipment, etc., and can solve the problems affecting the accuracy of dots, etc.
Inactive Publication Date: 2001-01-31
ARRAY PRINTERS PUBL
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Problems solved by technology
[0007] The defect of the existing DDC method is that the performance of the information carrier, such as the performance of the paper, will affect the size of the dot and the accuracy of the dot position control
Method used
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[0085] Description of preferred embodiments
[0086] In order to clearly describe the method and apparatus of the present invention, some examples of its use will be described below with reference to the accompanying drawings 1-10.
[0087] 1 is a schematic cross-sectional view of an image recording apparatus according to a first embodiment of the present invention, comprising at least one printing assembly, preferably four printing assemblies (Y, M, C, K), an intermediate image receiving member, and a drive roller 11 , at least one support roller 12, and preferably several adjustable fixing members 13. The above four printing components (Y, M, C, K) are arranged with respect to the intermediate image receiver. The intermediate image receiving member is preferably a transfer belt 10 which is mounted around a driving roller 11 . The at least one support roller 12 has a mechanism that maintains at least a certain contact surface tension of the transfer belt 10 while preventing...
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Abstract
An image recording device and method for recording an image to an information carrier. An intermediate image receiving member and a printhead structure move relative to each other during recording. The image recording device comprises an intermediate image receiving member position measuring means for measuring the position of the intermediate image receiving member in relation to the apertures to thereby via the control unit be able to synchronize the selective opening and closing of apertures through a printhead structure according to the relative movement of the printhead structure and the intermediate image receiving member to thereby enable the formation of a pigment image at a predetermined position on the intermediate image receiving member in view of the image which is to be recorded. The pigment image is subsequently transferred to an information carrier.
Description
field of invention [0001] The present invention relates to direct xerographic printing in which charged toner particles are transferred from a particle source to an image transfer member in accordance with image information to form a toner image which is then transferred to an information carrier. Background of the invention [0002] According to direct xerographic printing methods such as disclosed in US Pat. No. 5,036,341, a background electric field is formed between the developer sleeve and the rear electrode so that charged toner particles can be transported therebetween. A printhead placed in a background electric field, such as an electrode array with a large number of selectable apertures, connected to a control unit that converts the image information into a pattern of electrostatically controlled electric fields that selectively open or close the apertures, This allows or restricts toner particles from being transported out of the developer sleeve. The modulated s...
Claims
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IPC IPC(8): B41J2/385B41D7/00B41J2/415B41K1/00B41K1/02G03F7/00G03F7/16G03F7/20G03G15/34
CPCB41K1/00G03F7/16B41J2/4155G03G2217/0025B41D7/00G03F7/2012G03F7/00G03G15/346
Inventor B·伯恩M·莫斯伯格
Owner ARRAY PRINTERS PUBL