| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that desired image output cannot be obtained even when controlling exact potential in the state in which the surface temperature of a photoreceptor is not uniform during making an image. <P>SOLUTION: A distance Xe from an image exposure position of a photoreceptor surface temperature detecting means satisfies the following expression: Xd>Xe>2×τ×PS×Vc/Vμ×Mc/Mμ. A distance Xt from the image exposure position of the photoreceptor surface temperature detecting means satisfies the following expression: 0<Xt<10×τ×PS×Vc/Vμ×Mc/Mμ. Therein, τ: time constant (sec) in positive hole mobility measurement by TF method, PS: process speed (mm/sec), Vc: necessary latent image contrast (V) in making images, Mc: photoreceptor charge transport layer film thickness (cm), Vμ: bias applied on a sample in positive hole mobility measurement of TF method (V), Mμ: film thickness of a sample used for positive hole mobility measurement of TF method (cm), and Xd: a distance of the opposite position of a image exposure part and a developing device (mm). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
