Image forming apparatus and conveyance control method

An image forming apparatus comprising:

• a transferer that transfers an image to a sheet;
• a sheet conveyor that is provided on an upstream side of the transferer in a conveying direction of the sheet and that conveys the sheet;
• and
• a hardware processor that controls displacement of the sheet conveyor such that the sheet is displaced in a width direction of the sheet, wherein:
• the hardware processor causes a detector that detects an edge of the sheet in the width direction to detect the edge of the sheet after displacement of the sheet conveyor has been started, and causes the displacement to be terminated on the basis of the detected result such that the edge of the sheet reaches a target position,
• wherein the hardware processor performs control to execute the displacement incrementally on the basis of the detected result, and
• wherein the hardware processor changes, corresponding to image forming conditions, an interval between timings of increments of the displacement.

A conveyance control method for an image forming apparatus including a transferer that transfers an image to a sheet and a sheet conveyor that is provided on an upstream side of the transferer in a conveying direction of the sheet and that conveys the sheet, the method comprising:

• starting displacement of the sheet conveyor such that the sheet is displaced in a width direction of the sheet;
• detecting an edge of the sheet in the width direction only after the displacement has been started and during movement of the sheet conveyor in the width direction of the sheet;
• and
• terminating, on the basis of the detected result after a leading end of the sheet has entered the transferer, the displacement of the sheet conveyor such that the edge of the sheet reaches a target position,
• wherein the detecting is a first detecting of the edge of the sheet in the width direction.