发明公开
EP1489465A1 Determining a charging device pre-fault status
有权
Ermitteln des Vorfehlers在einemLadegerät
- 专利标题： Determining a charging device pre-fault status
- 专利标题（中）： Ermitteln des Vorfehlers在einemLadegerät
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申请号： EP04253374.5申请日： 2004-06-07
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公开(公告)号： EP1489465A1公开(公告)日： 2004-12-22
- 发明人: Wayman, William H.
- 申请人： Xerox Corporation
- 申请人地址： Patent Department, Xerox Square - 20 A, 100 Clinton Avenue South Rochester, New York 14644 US
- 专利权人： Xerox Corporation
- 当前专利权人： Xerox Corporation
- 当前专利权人地址： Patent Department, Xerox Square - 20 A, 100 Clinton Avenue South Rochester, New York 14644 US
- 代理机构： Rackham, Stephen Neil
- 优先权： US462329 20030616
- 主分类号： G03G15/00
- IPC分类号： G03G15/00 ; G03G15/02
摘要：
A printing machine comprises a charging device (10) that forms a variable operating voltage. A charging device pre-fault status condition is determined by sampling (11) the charging device (10) operating voltage, forming a slope value based on a charging device operating voltage rate of change per unit time, and determining when the slope value falls in a charging device pre-fault status range of values (200). When the pre-fault status determination is made, a message (110, 120, 130) is formed based on a current print count value (21). This message is then sent to a user or operator (1). When the print count value falls in a charging device replacement range of values, a replacement message is sent to inform that the charging device (10) needs to be replaced. Otherwise, when the print count value (21) does not fall in this range of values, a cleaning message is sent to inform that the charging device (10) needs to be cleaned.
公开/授权文献
- EP1489465B1 Determining a charging device pre-fault status 公开/授权日：2013-03-06
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