公开(公告)号：US20080008483A1

公开(公告)日：2008-01-10

申请号：US11773844

申请日：2007-07-05

申请人： Masahito HAMAYA ,  Hiroyuki NAGANAWA ,  Katsumi INUKAI ,  Kazushi FUKUTA

发明人： Masahito HAMAYA ,  Hiroyuki NAGANAWA ,  Katsumi INUKAI ,  Kazushi FUKUTA

IPC分类号： G03G15/00

CPC分类号： G03G15/166 ,  G03G2215/0119

摘要： An image-forming device has a housing, a cleaning unit, a toner detection unit, and a control unit. The cleaning target member is provided in the housing. The cleaning unit applies a predetermined voltage to the cleaning target member to remove toner from the cleaning target member through an electrostatic force. The predetermined voltage has a predetermined absolute value. The toner detection unit detects an amount of toner on the cleaning target member at least twice. The detected amount of toner includes a first amount of toner and a second amount of toner. The first amount of toner is detected when a first voltage having a first absolute value is applied as the predetermined voltage at a first time,. The second amount of toner is detected when a second voltage having a second absolute value is applied as the predetermined voltage at a second time. The second time is later than the first time. The control unit determines the predetermined absolute value on the basis of the first amount of toner and the second amount of toner.

摘要翻译： 图像形成装置具有壳体，清洁单元，调色剂检测单元和控制单元。 清洁目标构件设置在壳体中。 清洁单元将预定电压施加到清洁目标构件，以通过静电力从清洁目标构件去除调色剂。 预定电压具有预定的绝对值。 调色剂检测单元至少检测清洁目标构件上的调色剂量。 检测到的调色剂量包括第一量的调色剂和第二量的调色剂。 当第一次施加具有第一绝对值的第一电压作为预定电压时，检测第一量的调色剂。 当第二次施加具有第二绝对值的第二电压作为预定电压时，检测第二量的调色剂。 第二次比第一次晚。 控制单元基于调色剂的第一量和第二量的调色剂来确定预定的绝对值。