Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co LtdfiledCriticalRicoh Co Ltd
Priority to JP15551976ApriorityCriticalpatent/JPS5379542A/en
Publication of JPS5379542ApublicationCriticalpatent/JPS5379542A/en
PURPOSE:To diminish contact resistance to a conductive substrate even when the diameter of toner particles is small, to raise its sensitivity to a practical level, and to adapt it for electrophotographic copying, by covering the fine particles of a carrier producing substance with a charge transfer substance.