Image-forming apparatus

An image-forming apparatus having a printing function, comprising:

• 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 preparation waiting time setter that sets a preparation waiting time using the predetermined condensation determination information when the condensation determiner determines that the possibility of condensation occurring inside the image-forming apparatus exists;
• a preparation processor that performs a preparation process for executing the printing function when the image-forming apparatus is powered;
• and
• a fusing temperature sensor that measures a fusing temperature of a fusing device, wherein
• counting of the preparation waiting time starts when the preparation process begins, and
• the preparation processor cancels the preparation process after determining that a current fusing temperature measured by the fusing temperature sensor has reached a predetermined target temperature and the counted preparation waiting time has elapsed.

An anti-condensation method of an image-forming apparatus having a printing function, the anti-condensation method comprising:

• measuring an apparatus temperature inside the image-forming apparatus when the image-forming apparatus is powered;
• determining whether a possibility of condensation occurring inside the image-forming apparatus exists using predetermined condensation determination information including the measured apparatus temperature;
• setting a preparation waiting time using the predetermined condensation determination information when the possibility of condensation occurring inside the image-forming apparatus exists is determined;
• starting a preparation process for executing the printing function;
• starting counting of the preparation waiting time when the preparation process starts;
• periodically measuring a current fusing temperature of a fusing device during the preparation process;
• determining that the currently measured fusing temperature has reached a predetermined target temperature;
• and
• canceling the preparation process after determining that the currently measured fusing temperature has reached the predetermined target temperature and when the counted preparation waiting time has elapsed.