Image forming apparatus including a transfer cylider, a sprocket, a chain, an image forming part and a transfer unit

Abstract

An image forming apparatus includes: a transfer cylinder that rotates; a rotating member that is coaxial with the transfer cylinder and rotates integrally with the transfer cylinder; a circulating member that is provided with a holding part that holds a front end portion of a recording medium, is suspended around the rotating member, and transports the recording medium by circulating as the rotating member rotates; an image forming part that forms an image; and a transfer unit having a transfer belt onto which the image is transferred from the image forming part at a contact position with the image forming part and that transfers the image onto the recording medium transported by the circulating member by sandwiching the recording medium together with the transfer cylinder at a nip position. A product of mass of the transfer cylinder and a distance from a center of mass of the transfer unit to the nip position is smaller than a product of mass of the image forming part and a distance from the center of mass to the contact position.