Image forming apparatus

An image forming apparatus comprising:

• an operation unit that is decentered from a center line between a right part and a left part of the image forming apparatus rightwards or leftwards and that is disposed closer to a rear face or a front face of the image forming apparatus;
• a human sensor that detects a user intending to use the image forming apparatus;
• and
• a controller that performs control of operation of the image forming apparatus by using a detection result of the human sensor,
• the human sensor having a detection range set to detect the user, the user being detectable even when the user is present at least partially outside a width range of the image forming apparatus,
• wherein the detection range in which the user present at least partially outside the width range of the image forming apparatus is detectable is settable by changing a detection direction of the human sensor, and wherein the detection direction of the human sensor is changeable stepwise to a detection direction selected from a plurality of detection directions of the human sensor.