Image forming apparatus capable of reducing time and effort for user in setting size of irregular-size sheet, control method therefor, and storage medium

An image forming apparatus comprising:

• a sheet holding unit configured to hold a sheet;
• an obtaining unit configured to obtain a width of the sheet held on said sheet holding unit;
• a receiving unit configured to receive, from a user, size information indicating a size of a sheet;
• a storage unit configured to store at least the size information received by said receiving unit;
• and
• a selecting unit configured to select a size of the sheet held by said sheet holding unit based on the width obtained by the obtaining unit and the size information stored in said storage unit.

A control method for an image forming apparatus having a sheet holding unit configured to hold a sheet, comprising:

• obtaining a width of the sheet held on said sheet holding unit;
• receiving, from a user, size information indicating a size of a sheet;
• storing at least the received size information;
• and
• selecting a size of the sheet held by said sheet holding unit based on the obtained width and the stored size information.

A non-transitory computer readable storage medium storing program for causing a computer to implement a control method for an image forming apparatus having a sheet holding unit configured to hold a sheet, the control method comprising:

• obtaining a width of the sheet held on said sheet holding unit;
• receiving, from a user, size information indicating a size of a sheet;
• storing at least the received size information;
• and
• selecting a size of the sheet held by said sheet holding unit based on the obtained width and the stored size information.