Image forming apparatus

An image forming apparatus to which an input device is connectable, the input device including a plurality of hardware keys which include a numerical key portion where a plurality of numerical keys capable of inputting numerical information on 0 to 9, respectively, by being pushed down by a user are provided in an arrangement of an electronic calculator type, an outputting portion for outputting a plurality of key signals corresponding to the hardware keys, a switching key capable of selectively switching, in a case that the input device is connected to an information processing device including a display screen, a condition when the information processing device processes the key signal from the outputting portion, between a first processing condition in which the key signal is processed as information on a numerical value and a second processing condition in which the key signal is processed as information for moving a cursor displayed on the display screen, and a light emitting portion capable of notifying a user of that the first processing condition is set for the information processing device by being turned on and capable of notifying the user of that the second processing condition is set for the information processing device by being turned off, the image forming apparatus comprising:

• an image forming portion for forming the image on a recording medium;
• an operating panel capable of displaying a software execution key, as a software key, for providing an instruction of a start of image reading to an image reading device;
• a connecting portion to which the input device is connectable;
• a receiving portion for receiving the key signal;
• and
• a processing portion for processing the key signal received by the receiving portion,
• wherein the light emitting portion is switched between in a turn-on state and in a turn-off state on the basis of an operation of the switching key, and
• wherein the receiving portion receives the key signal indicating numerical information irrespective of the turn-on state or the turn-off state of the light emitting portion.