an apparatus temperature sensor that measures an apparatus temperature inside the image-forming apparatus;

a condensation determiner that determines whether a possibility of condensation occurring inside the image-forming apparatus exists using predetermined condensation determination information including the measured apparatus temperature;

a fusing temperature sensor that measures a fusing temperature of a fusing device;

a target temperature determiner that determines whether the measured fusing temperature has reached a predetermined target temperature;

a preparation processor that performs a preparation process for executing the printing function; and

a preparation waiting time setter that sets a preparation waiting time indicating a period of time in which the preparation process is performed, wherein

when the image-forming apparatus is powered, the apparatus temperature sensor measures a current apparatus temperature,

when the condensation determiner determines that the possibility of condensation occurring inside the image-forming apparatus exists, the preparation waiting time setter sets the preparation waiting time using the predetermined condensation determination information,

when an indication for performing the preparation process is received, the preparation processor starts the preparation process,

after counting of the preparation waiting time starts at a beginning of the preparation process, the fusing temperature sensor periodically measures a current fusing temperature, and

after the target temperature determiner determines that the currently measured fusing temperature has reached the predetermined target temperature and when the counted preparation waiting time has elapsed, the preparation processor cancels the preparation process.