JP2005300745A5 - - Google Patents

Claims (4)

A rotatable electrophotographic photosensitive member, a pre-exposure unit provided around the electrophotographic photosensitive member for neutralizing the surface of the electrophotographic photosensitive member, and a charging unit for charging the surface of the electrophotographic photosensitive member Exposure means for performing image exposure for forming an electrostatic latent image on the surface of the electrophotographic photoreceptor, developing means for developing the electrostatic latent image to form a toner image, and transferring the toner image to a transfer material In an image forming apparatus having a transfer means for transferring to an image and forming an image by an electrophotographic method, wherein the electrophotographic photosensitive member is an organic photosensitive member having an intermediate layer mainly composed of a resin The image forming apparatus is configured to simultaneously remove the charge on the surface of the electrophotographic photosensitive member by the pre-exposure unit and charge the surface of the electrophotographic photosensitive member by the charging unit before performing the image exposure by the exposure unit. Image that pre-rotates the electrophotographic photoreceptor A forming apparatus, and,
The image forming apparatus, detection means for detecting the temperature and / or humidity in the vicinity of the surface of the electrophotographic photosensitive member in the image forming apparatus, and the temperature and / or humidity information detected by said detecting means, The number of pre-rotations of the electrophotographic photosensitive member required to suppress the temperature and / or humidity in the vicinity of the surface of the electrophotographic photosensitive member in the image forming apparatus obtained in advance and the degree of increase in the bright portion potential of the electrophotographic photosensitive member; An image forming apparatus, further comprising a control unit that determines the previous rotational speed in light of the relationship and controls the previous rotational speed.   2. The image forming apparatus according to claim 1, wherein the electrophotographic photosensitive member is formed by laminating the intermediate layer and the photosensitive layer in this order on a conductive support, and the intermediate layer is a layer containing a polyamide resin. . 3. The control unit according to claim 1, wherein the control unit controls the rotation speed so that the lower the temperature in the vicinity of the surface of the electrophotographic photosensitive member in the image forming apparatus, the higher the rotation speed during the previous rotation. Image forming apparatus. 4. The control unit according to claim 1, wherein the control unit controls the rotation speed so that the lower the humidity in the vicinity of the surface of the electrophotographic photosensitive member in the image forming apparatus, the higher the rotation speed during the previous rotation. An image forming apparatus according to claim 1.