| CPC G03G 15/2017 (2013.01) [G03G 15/2064 (2013.01); G03G 15/5029 (2013.01)] | 7 Claims |
|
1. An image forming apparatus comprising:
a fixing belt having an endless shape and configured to be rotatable and apply heat to a recording material;
a pressure rotary body contacting an outer circumferential surface of the fixing belt to form a nip portion, and configured to fix, together with the fixing belt, a toner image to the recording material;
a nip forming member disposed on an inner circumferential surface of the fixing belt and forming, together with the pressure rotary body, the nip portion via the fixing belt;
a detection unit configured to detect a position of the fixing belt in a width direction of the recording material, the width direction being orthogonal to a conveyance direction of the recording material;
a steering roller configured to stretch and move the fixing belt in the width direction based on a detection result from the detection unit; and
a control unit configured to control a sheet interval that is a distance between a predetermined recording material and a recording material subsequent to the predetermined recording material,
wherein the control unit is configured to control the sheet interval to be a first sheet interval and a second sheet interval that is larger than the first sheet interval,
wherein the control unit is configured to, in a case where time taken for a center position of the fixing belt to move, in the width direction, from a first position to a second position that is different from the first position is equal to or less than a threshold, control the sheet interval to be the first sheet interval, and
wherein the control unit is configured to, in a case where the time taken for the center position of the fixing belt to move, in the width direction, from the first position to the second position is more than the threshold, control the sheet interval to be the second sheet interval.
|