Abstract: A server for a digital signage control system communicates with a plurality of display devices, a first terminal, and a second terminal. The server further stores, for each display device, an identifier, attribute data, and owner data, and a plurality of content items. The server receives from the first terminal, a display request to display a content item on a display device having attributes that match display criteria included in the display request, transmits an approval request to the second terminal identified based on the display device owner data, and upon receiving from the second terminal approval to display the content item on the display device, store the content item in association with the identifier corresponding to the display device, and control the display device to display the content item in accordance with the display request.

Abstract: An electrophotographic copying apparatus having an electromechanical optical scanner, optical reflecting and focusing assembly, photosensitive latent electrostatic imaging assembly, electrostatic charge generator and applicator, and electrostatic toner applicator, wherein the scanner and photosensitive assembly have selectably variable operational speeds and the electrostatic charge and toner applicators have substantially constant application rates, and further wherein the speeds of the scanner and photosensitive assembly may be selectably varied to maximize copying rate while minimizing electrostatic charge generation and electrostatic toner consumption.

Abstract: Disclosed is an electronic copying machine comprising detecting means for detecting an operating status of a copying machine main body, audio information storage means for storing predetermined audio information, audio information synthesizing means for reading out the audio information from said audio information storage means and for synthesizing the audio information, voice output means for converting the audio information synthesized by said audio information synthesizing means to a voice and for outputting the voice, and control means for detecting by said detecting means an operation made by an operator when trouble occurs in said copying machine main body and controlling said detecting means, said audio information storage means, said audio information synthesizing means and said audio output means so as to signal, with a voice, an operator an operation to be performed subsequently.

Abstract: A copying apparatus includes selection switches for selecting a cassette in which specified size copying sheets are contained and are to be fed into the copying apparatus in a specified direction, selection switches for selecting an operation mode in response to which a required image-forming-magnification-factor is selected, and a display panel for displaying an operation condition of the copying apparatus. The display panel displays a mismatch between the selected cassette and the selected operation mode and also displays a guidance for matching a cassette to be selected to the selected operation mode.

Abstract: Disclosed is an electronic copying machine comprising detecting means for detecting an operating status of a copying machine main body, audio information storage means for storing predetermined audio information, audio information synthesizing means for reading out the audio information from said audio information storage means and for synthesizing the audio information, voice output means for converting the audio information synthesized by said audio information synthesizing means to a voice and for outputting the voice, and control means for detecting by said detecting means an operation made by an operator when trouble occurs in said copying machine main body and controlling said detecting means, said audio information storage means, said audio information synthesizing means and said audio output means so as to signal, with a voice, an operator an operation to be performed subsequently.