An image forming device develops a static-electric latent image into a
visible image using non-magnetic, single component developer. The image
forming device includes a photosensitive drum and a developing roller that
are disposed in confrontation with each other. The photosensitive drum
supports a static-electric latent image on its surface and the developing
roller supplies the non-magnetic, single component developer to develop
the static-electric latent image into a visible image. The image forming
device further includes a photosensitive drum driver and a developing
roller driver for driving rotation of the photosensitive drum and the
developing roller, respectively. A drive controller is provided for
controlling drive of the photosensitive drum driver and the developing
roller driver. During at least a portion of a non-image forming period
when no images are being formed in an image formation process, the drive
controller controls the developing roller driver to stop driving the
developing roller to rotate while controlling the photosensitive drum
driver to drive the photosensitive drum to rotate.
