<p>An image forming apparatus (1) includes: a main body casing (2); a fixing unit accommodated in the casing and including a heating member (71) and a pressing member (72); a first wall (110) provided inside the casing at a position above the heating member and the pressing member and extending diagonally downward and forward; an uneven portion (111) provided on the first wall (110) at a position rearward of front end portion of the pressing member (72) to restrain a dew droplet condensed on the first wall from running down along the first wall; a sheet ejection opening (25) formed in the casing such that the recording sheet conveyed out from the fixing unit is ejected outside the casing through the sheet ejection opening; and an exhaust opening (26) formed in the casing at a position rearward of the heating member such that air heated in the fixing unit is discharged outside the casing through the exhaust opening.</p>
