an image forming apparatus includes an image forming unit configured to form an image under a control condition and including developing device ; a toner cartridge configured to supply toner to the developing device ; a measuring device configured to acquire measurement data ; a first memory which is provided for the toner cartridge and includes a data reference destination for obtaining the control condition and a correction value of the control condition for standard data or a plurality of control data corresponding to the measurement data ; a second memory configured to store the measurement data , the standard data , one of the correction value and the control data , and the obtained control condition ; and a processing mechanism configured to read the standard data and the correction value , or the measurement data and the control data and to obtain the control condition .