An electrophotographic photoreceptor is provided including an undercoat layer and a photosensitive layer that are sequentially formed on an electrically conductive substrate, wherein the undercoat layer includes a silane compound represented by Formula 1, a metal oxide, and a binder resin, and an electrophotographic imaging apparatus employing the electrophotographic photoreceptor.
where R1 to R are each independently a C1-C9 alkyl group, a C1-C9 alkoxy group, a phenyl group, or a phenoxy group. The electrophotographic photoreceptor has excellent electrical properties such as low residual potential and high sensitivity and excellent image quality and stability.