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:
Jan. 27, 1998
Filed:
May. 02, 1995
Shigeru Kagayama, Owariasahi, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
Control electrodes of an aperture electrode member have no portions arranged upstream of apertures in the direction of transportation of the toner particles. Consequently, when a voltage is applied to the control electrodes, toner particles do not adhere upstream of the control electrodes. As no adhering toner particles appear upstream of the apertures in the toner transportation direction, even if the application of the voltage to the control electrodes is interrupted, the problem of excessive toner particles being jetted from openings of the apertures does not occur. Consequently, the production of a shadow or abnormal dots on an image recording medium is prevented.