Abstract: An image processing device is disclosed which is connected to a local area network and to a public telephone network, and is comprised of an image processing means and a fax server means. The fax server means is capable of acquiring image data from the image processing means, or other image processing devices and/or data processing devices connected thereto via the local area network, and facsimile transmitting the image data over the public telephone network. This configuration eliminates the need to equip each image processing device and data processing device with a fax modem, and thus lowers the initial cost of installing these devices, lowers the cost of accessing the public telephone network, and lowers the cost of administering the system.

Abstract: An image forming device is disclosed which can positively conserve expensive consumable products such as toner and ink or the like and which can provide copied material which conforms to the intent of the user by using a simple operation. The image forming device includes an original document attribute detection unit that detects whether an original document to be copied is color or monochrome, an automatic mode switching unit that automatically switches between a color mode which forms a color image and a monochrome mode which forms a monochrome image based on the original document attribute detected by the original document attribute detection unit, and an image forming unit which copies an original document image to recording paper using the mode switched to by the automatic mode switching unit, and provides a priority mode switching unit which gives priority to switching by the automatic mode switching unit and forcibly switches to the monochrome mode.

Abstract: An image forming device is disclosed which can positively conserve expensive consumable products such as toner and ink or the like and which can provide copied material which conforms to the intent of the user by using a simple operation. The image forming device includes an original document attribute detection unit that detects whether an original document to be copied is color or monochrome, an automatic mode switching unit that automatically switches between a color mode which forms a color image and a monochrome mode which forms a monochrome image based on the original document attribute detected by the original document attribute detection unit, and an image forming unit which copies an original document image to recording paper using the mode switched to by the automatic mode switching unit, and provides a priority mode switching unit which gives priority to switching by the automatic mode switching unit and forcibly switches to the monochrome mode.

Abstract: An operation display device comprises an operation control unit which executes a function corresponding to a selection key displayed on a display unit, and a guide display control unit which displays a guide message corresponding to the selection key. The operation control unit causes the guide display control unit to display a guide message corresponding to a selection key in accordance with the amount of time that the selection key has been operated by a user. The guide display control unit displays the guide message corresponding to the selection key in a region other than the region in which the operated selection key and one or more other selection keys related thereto are displayed.

Abstract: An image processing device is disclosed which is connected to a local area network and to a public telephone network, and is comprised of an image processing means and a fax server means. The fax server means is capable of acquiring image data from the image processing means, or other image processing devices and/or data processing devices connected thereto via the local area network, and facsimile transmitting the image data over the public telephone network. This configuration eliminates the need to equip each image processing device and data processing device with a fax modem, and thus lowers the initial cost of installing these devices, lowers the cost of accessing the public telephone network, and lowers the cost of administering the system.