Patent ID: 8630575
Filing Date: 2014-01-14
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image bearing member configured to carry a toner image; a rotatable belt member stretched by a plurality of stretching members and configured to carry and convey a recording material; a transfer member configured to transfer the toner image from the image bearing member to the recording material carried by the belt member by pressing the belt member against the image bearing member; a first separation portion disposed downstream of the transfer member in a conveying direction of a recording material, configured to form a first protruded portion on the belt member in a thickness direction of the belt member, and configured to form a first convex corrugation on the recording material carried by the belt member corresponding to the first protruded portion in a width direction of the belt member; a second separation portion disposed downstream of the first separation member in the conveying direction, configured to form a second protruded portion on the belt member in the thickness direction, and configured to be disposed so as not to overlap the first separation portion in the width direction, and configured to form a second convex corrugation on the recording material carried by the belt member corresponding to the second protruded portion in a width direction in a state that the recording material keeps the first convex corrugation; wherein each of the first and the second separation portions includes a plurality of separation rollers extending in the width direction of the belt member; and wherein each of the separation rollers have an outer diameter of not less than 6 mm and not more than 10 mm, and a width in the width direction of not less than 5 mm and not more than 15 mm.