Sharp Kabushiki Kaisha Corporation

Yoshitaka Honda

Syoichiro Yoshiura

Hideo Matsuda

Akihiko Taniguchi

Hiranaga Yamamoto

Koji Katamoto

Tamotsu Fukushima

Yukio Nakai

Itsuro Katoh

Kenichi Gomi

A data-processing system consisting of a portable terminal device and a copying machine can effectively work with protection against breakage of data stored in the terminal device. The data-processing system is constructed to work on the following principle: When a given period is measured by a timer for starting the power saving mode, a portable terminal device provides a copying machine with a signal informing of starting the power-saving mode. The copying machine, which received the power-saving-mode starting signal, provides in later the portable terminal device a signal requiring the terminal to cancel the power-saving-mode. When a given period is measured by a timer for starting the power saving mode, the copying machine provides the portable terminal device with a signal requiring the terminal device to start the power-saving mode. A CPU, which received information on request of power-saving-mode, executes the power saving mode. The portable terminal device and the copying machine as the former being mounted on the latter can simultaneously execute the power saving mode, preliminarily sheltering data in the storage.

Data processing system having separable data-processing devices and a deactivable power-saving function

A system includes an image forming apparatus or copier, and a central controller for remotely determining a cause of malfunction of the copier. The copier includes a control unit including a self-diagnostic portion; a selection portion for setting the control unit to a self-diagnosis mode; and a communication device for, when the self-diagnosis mode is set, connecting the control unit with a communication line. The self-diagnostic portion includes a receiving section for receiving diagnostic information through the communication device; a diagnostic section for executing self-diagnosis against the copier, on the basis of the received diagnostic information; and a transmitting section for transmitting the results of the self-diagnosis through the communication device.

Image forming apparatus with communication function

A heat fixing device for a image reproduction machine includes a heat roller having a heat source for heat fixing a toner image on a copy paper, a temperature sensing element for sensing the temperature of the heat roller, and a temperature control element responsive to the output of the temperature sensing element for controlling the power supply to the heat source. The temperature sensing element and the temperature control element are integrally combined.

Integrated assembly of thermostat and thermistor in fixing device of

Growing community of inventors

Nara, Japan

Yoshitaka Honda