Sheet conveying apparatus, image processing apparatus, and conveyance control method

A sheet conveying apparatus comprising:

• a conveyance unit that conveys a sheet placed on a sheet placement unit;
• a pair of regulating units, at least one of which is provided to be movable in a width direction orthogonal to a conveyance direction of the sheet by the conveyance unit in the sheet placement unit, the regulating units regulating a position of the sheet in the width direction;
• a process execution unit that executes a specific process of conveying the sheet using the conveyance unit;
• a detection processing unit that detects a separation distance between the pair of regulating units;
• a restriction processing unit that restricts execution of the specific process when a difference between a first separation distance detected by the detection processing unit at a predetermined specific timing and a predetermined reference distance exceeds a predetermined threshold value;
• and
• a cancellation processing unit that cancels the restriction on the execution of the specific process when a second separation distance detected by the detection processing unit after the restriction on the execution of the specific process by the restriction processing unit is the same as the first separation distance detected by the detection processing unit before a detection timing of the second separation distance and on or after the predetermined specific timing.