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:
Jun. 27, 2000
Filed:
May. 01, 1998
Shirou Wakahara, Chiba, JP;
Iwakazu Honda, Kitakatsuragi-gun, JP;
Katsumi Adachi, Ikoma-gun, JP;
Yukihito Nishio, Ikoma-gun, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An image forming unit has a toner supplying section and a printing section, and directly forms an image with the developer, in accordance with the image signal, onto a sheet of paper as the recording medium. The control electrode has a shield electrode in which the positions of the openings, the applied voltage and the diameters of the openings are controlled so that the jumping of the toner passing through the gates can be controlled finely and uniformly without being affected by the distances from the toner support to the opposing electrode and control electrode. A further shield electrode can be provided to perform further precise toner control and hence produce highly qualified images.