IMAGE FORMING APPARATUS CAPABLE OF REDUCING TIME AND EFFORT FOR USER IN SETTING SIZE OF IRREGULAR-SIZE SHEET, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM

摘要

An image forming apparatus which is capable of reducing time and effort for a user in setting a size of an irregular-size sheet. Width information indicative of a width of a sheet set by the user is stored in a storage unit. A width of the sheet held by a sheet holding unit that holds the sheet is detected. From the width information stored in the storage unit, candidates for a size of the sheet are extracted based on the detected width of the sheet. The extracted candidates for a size of the sheet are displayed on a display. A size of the sheet selected by the user from among the displayed candidates for a size of the sheet is set as a size of the sheet held by the sheet holding unit.