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. 19, 1994
Filed:
Nov. 13, 1992
Yozo Matsuura, Tokyo, JP;
Toshiyuki Nakama, Atsugi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner supplement control device incorporated in an image forming apparatus for executing the supplement of a fresh toner to a developing unit only when a particular document image process mode is under way. The particular process mode is any one of a document image receive mode, a document image record mode, a document image copy mode, a supervisory report record mode, etc. In the event of initialization of the apparatus, during ordinary recording operation, and when a cleaner and toner magazine (CTM) is to be replaced, whether or not a fresh toner is present in the CTM is determined on the basis of the condition of a fresh toner existing in a developing unit.