Direct electrostatic printing method and apparatus
A technology of equipment and printing head, which is applied in the direction of printing plate preparation, optomechanical equipment, and equipment for electrical recording technology using charge graphics, which can solve the problems affecting the accuracy of dots, etc.
Inactive Publication Date: 2002-09-04
ARRAY PRINTERS PUBL
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- Abstract
- Description
- Claims
- Application Information
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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
The present invention provides an image recording apparatus and method for recording images on an information carrier. During recording, an intermediate image receiving member and a print head move relative to each other. The image recording apparatus includes a position measuring device of the intermediate image receiving member for measuring the position of the intermediate image receiving member relative to the aperture so as to be selectively opened synchronously by the control unit according to the relative movement between the print head and the intermediate image receiving member and closing the holes passing through the print head, so that a toner image can be formed at a predetermined position on the intermediate image receiving member according to the image to be recorded. Subsequently, the toner image is transferred onto 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): B41J2/415B41J2/385B41D7/00B41K1/00B41K1/02G03F7/00G03F7/16G03F7/20G03G15/34
CPCB41J2/4155G03G15/346G03G2217/0025B41K1/00B41D7/00G03F7/00G03F7/16G03F7/2012
Inventor B·伯恩M·莫斯伯格
Owner ARRAY PRINTERS PUBL