Abstract: A copy system includes a combination of a tablet and an input pen for inputting copy condition information such as a control condition and an editing condition, and a copying machine for forming a copy image in accordance with a copy condition information as inputted. An IC card insertion portions are respectively formed on the tablets and the copying machine. When the control condition, for example, a copy quantity and a copy magnification, and the editing condition, for example, an editing function and a positional data are inputted by the input pen and the tablet in the state where the IC card is loaded to the tablet, the inputted copy condition information is stored in the IC card. Thereafter, the IC card is unloaded from the tablet and inserted to the copying machine. The copy condition information is led from the inserted IC card to the copying machine.

Abstract: An apparatus for inputting image forming condition includes a combination of a tablet and an input pen. An IC card insertion portion is formed on the tablet. In the state that an IC card is loaded to the tablet, when a control condition, for example, a copy quantity and copy magnification and/or an editing condition, for example, editing function and positional data are inputted by operating the tablet by means of the input pen, the inputted image forming condition is stored into the IC card. Thereafter, by unloading the IC card from the tablet and loading the same into a copying machine, a copying image of an original is formed by the copying machine in accordance with the image forming condition read out from the IC card.

Abstract: A developing apparatus comprises a container in which a developer composed of a mixture of carrier and toner is stored and a screw conveyor for transferring and stirring the developer is disposed. The screw conveyor has a stirring blade formed in a spiral shape, and the stirring blade is cut out at nearly the center of the screw conveyor so that stagnation of the developer takes place at that interrupted portion thereof. A level sensor is disposed so as to be able to detect the level of the developer at that interrupted portion. In the interrupted portion, since stagnation of the developer takes place, pulsation of the developer produced in the case of the screw conveyor having a continuous stirring blade is suppressed, and thereby a level of the developer can be detected more accurately.