JP2009151180A5 - - Google Patents

Claims (4)

A toner container that is detachably mounted;
Driving means for driving the toner container;
First detecting means for detecting an abnormality in the driving state of the driving means;
Second detection means for detecting that the toner container has been replaced ;
Wherein the toner container by the second detection means is detected to have been exchanged, and when the abnormality of the driving state of said driving means is detected by said first detection means, wherein the toner container is defective mounting a determination means to determine that,
When the toner container is determined to be defective mounting by said determining means, without stopping the image forming operation, and again the display to that control unit on the display unit an instruction to prompt the installation of the toner container, An image forming apparatus comprising: The first detection unit detects an abnormality in a driving state of the driving unit based on a current value of the driving unit in a state in which the toner container is mounted. Image forming apparatus. The toner container is rotationally driven by the driving means, and the first detection means detects an abnormality in the driving state of the driving means based on a current value for a time corresponding to at least one rotation of the driving means. The image forming apparatus according to claim 1, wherein: When the toner container is continuously a predetermined number of times is determined to be defective mounting by the determining means, the pre-SL control means stops the image forming operation, and displays an error on the display unit, it The image forming apparatus according to any one of claims 1 to 3.