Image forming apparatus for displaying sheet information

An image forming apparatus comprising:

• a printer configured to form an image on a sheet;
• a sheet detection unit including one or more sensors configured to detect a physical property of the sheet;
• a controller including one or more processors and at least one memory storing one or more programs configured to be executed by the one or more processors, the controller configured to determine sheet information based on a result of the detection performed by the sheet detection unit and a threshold;
• and
• an operation unit including a touch panel display configured to display the sheet information determined by the controller and receive a user instruction to change the threshold,
• wherein, in a case where the operation unit receives the user instruction to change the threshold, the controller determines sheet information based on the result of the detection and the changed threshold, and the operation unit displays the sheet information,
• wherein the sheet information includes a determination rate, and
• wherein, in a case where the operation unit displays two or more candidates for the sheet information, the operation unit arranges and displays the two or more candidates in descending order of the determination rate.