Image forming apparatus

An image forming apparatus comprising:

• an image bearing member configured to bear a toner image;
• a transfer member, to which a voltage is applied, for transferring the toner image from the image bearing member onto a recording material in a transfer portion;
• a voltage source configured to apply the voltage to the transfer member;
• a current detecting portion configured to detect a current flowing though the transfer member;
• and
• a controller configured to perform constant voltage control so that the voltage applied to the transfer member becomes a target voltage in a case in which a detection result detected by the current detecting portion is within a predetermined range while the recording material is passing through the transfer portion,
• wherein in a case in which the detection result is out of the predetermined range while the recording material is passing through the transfer portion, the controller is configured to adjust the target voltage so that the detection result falls within the predetermined range, and to perform the constant voltage control with the adjusted target voltage, and
• wherein the controller is capable of executing a first mode in which the controller increases the target voltage and performs the constant voltage control with the increased target voltage in a case in which the detection result detected by the current detecting portion is below a lower limit of the predetermined range while the recording material is passing through the transfer portion, and a second mode in which the controller performs the constant voltage control with the target voltage without changing the target voltage even in a case in which the detection result detected by the current detecting portion is below a lower limit of the predetermined range while the recording material is passing through the transfer portion.