Image forming apparatus

An image forming apparatus comprising:

• a conveyance unit configured to convey a sheet;
• a measurement unit for measuring a feature amount of the sheet conveyed by the conveyance unit;
• a sheet detection sensor for detecting the sheet conveyed by the conveyance unit;
• a pressing member movable between a first position separated from the measurement unit and a second position closer to the measurement unit than the first position;
• a moving unit configured to move the pressing member;
• an image forming unit configured to form, based on a predetermined image forming condition, an image on the sheet conveyed by the conveyance unit;
• and
• a controller,
• wherein the controller is configured to:
• stop conveyance of the sheet by the conveyance unit in a case where the sheet is detected by the sheet detection sensor, and control the moving unit to move the pressing member from the first position to the second position;
• control, under a state in which the pressing member is arranged at the second position, the conveyance unit to restart the conveyance of the sheet to control the measurement unit to measure the feature amount of the sheet, and determine the predetermined image forming condition based on the measured feature amount;
• and
• stop the conveyance of the sheet by the conveyance unit before the image forming unit forms an image on the sheet to set the predetermined image forming condition in the image forming unit, and restart the conveyance of the sheet by the conveyance unit to control the image forming unit to form an image based on the predetermined image forming condition.