发明名称 |
Image forming apparatus and method for detecting separated state of transfer member |
摘要 |
An image forming apparatus includes a secondary transfer roller that becomes a pressed state to make an intermediate transfer belt perform a transfer process and can move between the pressed state and a separated state, a press and separation driving device for driving the secondary transfer roller to become the pressed state and the separated state, a press and separation detecting device for detecting a pressed or separated state, and a voltage applying portion for applying a voltage between the intermediate transfer belt and the secondary transfer roller. The press and separation detecting device includes a resistor for detecting a current and a determination portion for determining a pressed or separated state in accordance with the detected current.
|
申请公布号 |
US7840148(B2) |
申请公布日期 |
2010.11.23 |
申请号 |
US20070704242 |
申请日期 |
2007.02.09 |
申请人 |
KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. |
发明人 |
TANAKA MASAKI;HIRATA KATSUYUKI;OBARA MITSURU;TSUBOI TOSHIO;ISONO TATSUYA |
分类号 |
G03G15/16 |
主分类号 |
G03G15/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|