The invention provides an image forming apparatus which can improve the rigidity of a discharge unit and prevent noise interference caused by static electricity. The image forming apparatus includes a discharge unit, a discharge roller, a pressing member, and a reinforcing frame. The discharge unit includes a guide member that forms a discharge path that guides a sheet member after image formation to a sheet discharge port. The discharge unit is attached to an apparatus main body. The discharge roller is disposed in a vicinity of the sheet discharge port of the discharge unit, and discharges the sheet member in the discharge path to outside from the sheet discharge port. The pressing member is attached to the guide member more in an upstream side than the sheet discharge port in a sheet member discharge direction, the pressing member projecting from the guide member toward the discharge path and configured to contact and press the sheet member that is passing through the discharge path. The reinforcing frame is made conductive with a reference potential portion of the apparatus main body and configured to reinforce the discharge unit by being, together with the discharge unit, fixed to the apparatus main body in a state of covering a part of the guide member to which the pressing member is attached. The reinforcing frame is formed from a metal plate material.