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:
Sep. 08, 2009
Filed:
Dec. 14, 2007
Masahiro Sakai, Osaka, JP;
Shuichi Akedo, Sakai, JP;
Shigeki Hayashi, Ikoma-gun, JP;
Teruyoshi Sudoh, Yamatokoriyama, JP;
Masahiro Sakai, Osaka, JP;
Shuichi Akedo, Sakai, JP;
Shigeki Hayashi, Ikoma-gun, JP;
Teruyoshi Sudoh, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A developing unit for developing an electrostatic latent image formed on the outer peripheral surface of a latent image bearing member rotating in one direction with a developer by mixing electrostatically chargeable toner and magnetic carrier, includes: a developing roller; a carrier collecting roller; a cooling portion including a forced draft duct for airflow from a fan and disposed on the bottom side of the developing vessel; a suctioning portion including a suctioning duct for airflow from suctioning ports disposed on the lower side of the carrier collecting roller, disposed under the forced draft duct; a filter for removing the scattering toner from air including the scattering toner suctioned from the suctioning ports; and, an exhaust portion including an airflow exhaust duct for discharging the air passed through the filter and the forced draft duct to an exhaust port.