Image forming apparatus

An image forming apparatus comprising:

• an image forming unit configured to form an image with developer based on a print job;
• an attaching portion to which a container containing developer for replenishing is attached;
• a sensor configured to detect the developer in the image forming unit;
• a replenishment mechanism configured to replenish the image forming unit with the developer for replenishing from the container attached to the attaching portion;
• a display;
• and
• a controller configured to:
• control the replenishment mechanism based on a detection result of the sensor;
• control, after the container that fails to satisfy a predetermined condition relating to a remaining amount of the developer in the container is removed from the attaching portion, the image forming unit based on a mode of prohibiting the image from being formed based on the print job in a case where another container different from the removed container is attached to the attaching portion;
• and
• control, after the container that fails to satisfy the predetermined condition is removed from the attaching portion, the display to display a first screen for prompting reattachment of the removed container in the case where the another container different from the removed container is attached to the attaching portion, the first screen including a button that allows the mode to be canceled.