| 摘要 |
PURPOSE:To assure printing from after a toner is empty until a toner is supplied by being equipped with a toner sub-tank mechanism to supply toners by the number of printed and assured sheets. CONSTITUTION:A toner sub-tank 3 to charge the number of toners to be printed and assured in order to print after it is detected that the toner is empty, at a part of a toner tank 2 and a supplying port 3a of the toner sub-tank 3 is sealed with a film 11. Consequently, when it is detected that the toner is empty, by the change of the torque of a mixer 4, the film 11 is separated, and the toner can be supplied from the toner sub-tank 3 into the toner tank 2. Thus, the printing and assuring after it is detected that the toner is empty by the toner in the supplied toner tank can be executed. |
