An image forming apparatus includes a lower unit, an upper unit, and a coupling section. The upper unit is disposed on the lower unit. The coupling section couples the upper unit to the lower unit. The lower unit includes a first vertical plate member. The first vertical plate member is disposed in a rear position in the lower unit along a rear surface of the lower unit. The upper unit includes a second vertical plate member. The second vertical plate member is disposed in a rear position in the upper unit along a rear surface of the upper unit. The coupling section includes a plurality of engagement sections and a mating engagement section that engages with the engagement sections. The engagement sections are arranged along and supported on the second vertical plate member. The mating engagement section is elongated along and supported on the first vertical plate member.