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:
Jul. 12, 1994
Filed:
Dec. 08, 1992
Mitsuru Ohta, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
Disclosed is a dry type developer including colored particles which are flown to a recording medium, thereby an image being recorded on the recording medium, wherein, a ratio of both an average particle size of the particles calculated based on volume of the particle and an average particle size of the particles calculated based on number of the particle, lies in a range of from 1.00 to 1.35. Thereby, the distribution of the particle size in the toner can be made sharp with mono-dispersion, thus uniform charge quantity can be obtained without being affected by changing in the charge quantity changed according to the toner particle size, because the toner particle size can be made uniform. Therefore, the image with stable and uniform concentration can be recorded on the recording medium all the time. As a result, the image with fine line can be clearly recorded on the recording medium with high resolution.