Image forming apparatus comprising a transfer device applying methods of belt conveying and contact transferring

摘要

An image forming apparatus includes a photosensitive member which is provided on an outer surface of a drum that rotates and on which a toner image is formed, and a belt which contacts a recording sheet with a photosensitive member while conveying the recording sheet, to transfer a toner image formed on the outer surface of the photosensitive member to the recording sheet. The photosensitive member and the transferring belt are rotated so that the time required for an arbitrary point on the photosensitive member and an arbitrary point on the transferring belt to pass through a nip area that electrically connects the photosensitive member and the transferring belt together is 20 msec or more.