| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of preventing the inside of a developing part from getting in a toner over state. <P>SOLUTION: A CPU 2 of this copying machine 1 is equipped with a memory 20, a table 21 in which the relation between 1st specified time and absolute temperature is previously stored, a humidity calculation part 23 calculating absolute humidity (e) based on both detected values (t) and R by a temperature sensor 1011 and a humidity sensor 1012, a time calculation part 24 increasing and decreasing a 1st specified value by applying the (e) to the table 21, a low counter part 26 judging whether or not a detected value Vt detected by a toner sensor 1067 shows low voltage and the low voltage is continued for the 1st specified time, and a toner supply control part 27 performing the supply of toner in the case of judging that the low voltage is continued for the 1st specified time according to the counted value. <P>COPYRIGHT: (C)2003,JPO |
