Abstract: A paper feeding apparatus for use in an image forming apparatus which transfers a toner image onto a paper, the paper feeding apparatus comprising paper feed device for feeding paper into a paper feed path, a paper sensor device provided adjacent to the paper feed path for detecting paper on the paper feed path to produce a detection information signal, a control device responsive to the detection information signal from the paper sensor device for controlling movement of the paper wherein the paper is fed into an image transfer portion of the image forming apparatus in proper timing with the operation of an image carrying body of the image forming apparatus and wherein the feeding of paper into the image transfer portion is temporarily stopped until the proper timing occurs with the operation of the image carrying body.

Abstract: A recording apparatus for recording image data, the recording apparatus permitting a user to readily select and alter recording functions and add various other functions using portable storage means such as an IC card and reading means for reading control data from the storage means.

Abstract: A recording apparatus for recording image data, the recording apparatus permitting an user to readily select and alter recording functions and add various other functions using portable storage means such as an IC card and reading means for reading control data from the storage means.

Abstract: A recording apparatus for recording image data, the recording apparatus permitting an user to readily select and alter recording functions and add various other functions using portable storage means such as an IC card and reading means for reading control data from the storage means.

Abstract: A paper tray control system includes a recording apparatus for recording image data on a paper, to which additional devices are attachable; a paper tray installed in the recording apparatus as the additional devices for stocking the paper on which the image data has been recorded; and main controller for controlling the recording apparatus and for generating an instruction. The paper tray control system is further provided with a tray control separated from the main controller for controlling the paper tray; and a communication line connected between the main controller and the tray controller, wherein the tray controller receives the instruction from the main controller through the communication line to control the paper tray according to the instruction.