Patent ID: 8456652

Claim:
An image forming apparatus that conveys sheets and forms images on the conveyed sheets, comprising: a determining unit configured to determine whether or not a sum of a first length and a second length is more than a reference value, wherein the first length is a length of a blank area from a trailing edge of a first sheet, the second length is a length of a blank area from a leading edge of a second sheet, and the second sheet follows after the first sheet; a setting unit configured to, in a case where the determining unit determines that the sum of the first length and the second length is not more than the reference value, set a first sheet conveyance interval so that a sum of the first length, the second length and the first sheet conveyance interval is equal to or more than the reference value, and in a case where the sum of the first length, the second length and the first sheet conveyance interval is more than the reference value, set a second sheet conveyance interval which is shorter than the first sheet conveyance interval; and a conveying unit configured to convey the sheets at the first sheet conveyance interval or the second sheet conveyance interval set by the setting unit.