Electrophotographic photoreceptor, process cartridge, and image forming apparatus
The electrophotographic photoreceptor enhances charge retention and stability using a conductive substrate, undercoat, and charge transport layer with specific triphenylamine derivatives to prevent toner adherence and reduce fogging in image forming apparatuses using non-magnetic, single-component pulverized toner.
JP2026116180APending Publication Date: 2026-07-09KYOCERA DOCUMENT SOLUTIONS INC
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- KYOCERA DOCUMENT SOLUTIONS INC
- Filing Date
- 2025-12-03
- Publication Date
- 2026-07-09
Smart Images
Figure 2026116180000001_ABST
Abstract
In an image forming apparatus using a non-magnetic, single-component pulverized toner, an electrophotographic photoreceptor capable of suppressing image defects caused by fogging is provided. [Solution] The electrophotographic photoreceptor of the present invention is used in an image forming apparatus that uses a non-magnetic, single-component pulverized toner. The electrophotographic photoreceptor comprises an undercoat layer disposed on a conductive substrate, and a photosensitive layer in which a charge generation layer and a charge transport layer are sequentially laminated on the undercoat layer. The undercoat layer contains a thermosetting resin including an alkyd resin and a melamine resin, and titanium oxide particles. The charge transport layer contains a binder resin including a polycarbonate resin or a polyarylate resin, and a hole transporter containing a compound represented by general formula (1).
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