Electrophotographic photosensitive element, process cartridge and electrophotographic device
DE602021036997T2Active Publication Date: 2025-08-27CANON KK
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Patent Information
- Application Number
- DE602021036997
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-05-19
- Filing Date
- 2021-05-18
- Publication Date
- 2025-08-27
- Estimated Expiration
- 2041-05-18
AI Technical Summary
Technical Problem
Existing electrophotographic photosensitive members experience a variation in light-area potential during long-term use due to reduced electroconductivity of tungsten oxide particles in the intermediate layer.
Method used
Incorporating cesium atoms into tungsten oxide particles in the intermediate layer, with a composition ratio of 0.1 to 10.0%, stabilizes the electroconductivity and suppresses variations in light-area potential.
Benefits of technology
The incorporation of cesium atoms into tungsten oxide particles maintains electroconductivity, reducing film resistance and initial sensitivity variations, thereby stabilizing the light-area potential over time.
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