| 摘要 |
An image forming apparatus includes a belt member bearing a toner image, a contact member disposed inside loop formed by the belt member, a rotary pressing member to contact the contact member through the belt member and form a nip between the contact member and the rotary pressing member via the belt member through which a recording medium is conveyed, and a transfer device to transfer the toner image onto the recording medium. An amount of winding of the belt member around the rotary pressing member is changeable between a first state in which the belt member is wound around the rotary pressing member upstream from the nip in the direction of move to the nip and a second state in which the amount of winding of the belt member around the rotary pressing member is reduced from the first state while contacting the belt member.
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