DEVELOPING DEVICE,申请号JP20000271344-传众专利搜索

DEVELOPING DEVICE

申请公布号：JP2002082526(A)

申请号：JP20000271344

申请日期：2000.09.07

申请公布日期：2002.03.22

申请人：

KONICA CORP

发明人：ITAGAKI SEIKO;TOKIMATSU HIROYUKI;HANEDA SATORU

分类号：G03G9/08;G03G15/08;(IPC1-7):G03G15/08

主分类号：G03G9/08

摘要：<p>PROBLEM TO BE SOLVED: To provide a developing device capable of obtaining a satisfactory developing performance by appropriately controlling the electrifying quantity at developing and securing a good carrying performance also at a high-speed processing. SOLUTION: As for the developing device, an oscillating field is formed between a developer carrier and a contact type electrifying member so as to electrify the developer on the developer carrier, the linear velocity of the developer carrier is controlled to be >=200 mm/sec, and also, the volumetric mean electrified quantity Q2 (μC/g) of the developer electrified by the contact type electrifying member with reference to the volumetric mean electrified quantity Q1 (μC/g) of the developer after forming the layer by the developer control member is controlled so as to establish Q2=(0.5 to 0.9) Q1.</p>