The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2003
Filed:
Oct. 01, 2001
Applicant:
Inventor:
Ching-Yu Chou, Taipei, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/04 ; B41J 2/06 ;
U.S. Cl.
CPC ...
B41J 2/04 ; B41J 2/06 ;
Abstract
This invention relates to a control method and structure of electrode device of a direct electrostatic printing apparatus which enables multi-leveled print depth on recording medium. By utilizing the electrode device with multiple electrode layers having at least an aperture passing through and corresponding to every print dot, as different level of print depth is needed, different voltage value is applied to the electrode device, thereby establishing a different magnitude of electric field and driving varied amounts of charged colorants passing through the aperture on the electrode device from the cartridge device and being attached onto the recording medium.