Image forming apparatus

An image forming apparatus, comprising:

• an image forming unit configured to form an image on a sheet based on a job, wherein the image forming unit being controlled based on an image forming condition;
• a conveying unit configured to convey the sheet in a conveyance path;
• an image reading unit configured to read a test image on the sheet conveyed by the conveying unit;
• and
• a controller configured to:
• control the image forming unit to form the image and the test image on a same sheet;
• control the reading unit to read the test image on the same sheet;
• and
• generate the image forming condition based on a reading result of the test image by the reading unit,
• wherein, in a case where the image forming unit forms images based on a first job in which a first image and the test image are formed on a same first sheet and a second job in which a second image and the test image are formed on a same second sheet, the controller controls, based on a time period in which no image is formed on a sheet between the first job and the second job, whether or not to form another test image on another sheet by the image forming unit before the image forming unit forms the second image and the test image on the same second sheet, and
• wherein the controller controls the reading unit to read the another test image on the another sheet, and
• wherein the controller generates the image forming condition based on a reading result of the another test image by the reading unit.