| 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 sampling part 21 sampling a detected value detected by a toner sensor 1067, a low judging part 22 judging whether or not the sampled detected value shows low voltage, a low counter part 23 judging whether or not the low voltage is continued for 90 seconds in the case of judging that it is the low voltage, a toner supply control part 24 performing the supply of toner in the case of judging that the low voltage is continued for 1st specified time according to the counted value, and a high judging part 25 judging whether or not a value detected by the sensor 1067 shows high voltage until 90 seconds elapse after starting the supply of the toner. <P>COPYRIGHT: (C)2003,JPO |
