发明名称 |
Method of detecting life of image bearing member, image forming apparatus and cartridge |
摘要 |
A method of detecting the end of the life of an image bearing member has: a contact time detecting step of detecting the contact time when a developer carrying member that can be in contact with or have a clearance with an image bearing member contacts the image bearing member, the developer carrying member developing an electrostatic image formed in the image bearing member by a developer; and a determining step of determining the end of the life of the image bearing member in accordance with a parameter calculated by using the contact time detected in the contact time detecting step.
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申请公布号 |
US6704524(B2) |
申请公布日期 |
2004.03.09 |
申请号 |
US20020323754 |
申请日期 |
2002.12.20 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
MATSUGUMA MINORU;ISHII YASUYUKI |
分类号 |
G03G21/00;G03G15/00;G03G21/16;G03G21/18;(IPC1-7):G03G15/00 |
主分类号 |
G03G21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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