Abstract: A device management apparatus is connected to a plurality of devices and a plurality of information processing apparatuses using the devices, through a network. The device management apparatus includes: an obtaining unit that obtains usage amount information about usage amounts from the devices; a calculation unit that calculates unit usage amounts that are usage amounts of the respective devices per unit period, using the usage amount information about the respective devices; an analysis unit that analyzes use of the devices using the unit usage amounts of the respective devices; a change unit that changes allocation of the information processing apparatuses to the devices based on an analysis result in order to equalize use of the devices; and a notification unit that notifies the information processing apparatus for which an allocated device has been changed, of usage information required to use the device.

Abstract: A device management apparatus is connected to a plurality of devices and a plurality of information processing apparatuses using the devices, through a network. The device management apparatus includes: an obtaining unit that obtains usage amount information about usage amounts from the devices; a calculation unit that calculates unit usage amounts that are usage amounts of the respective devices per unit period, using the usage amount information about the respective devices; an analysis unit that analyzes use of the devices using the unit usage amounts of the respective devices; a change unit that changes allocation of the information processing apparatuses to the devices based on an analysis result in order to equalize use of the devices; and a notification unit that notifies the information processing apparatus for which an allocated device has been changed, of usage information required to use the device.

Abstract: A printing system includes a printing apparatus, a terminal apparatus for transmitting and receiving information, a notification part notifying a user of the printing apparatus of information on authority of the user to use the printing apparatus, and a network connecting the printing apparatus, the terminal apparatus, and the notification means so that information transmission and reception in the system is performed through an electrical signal via the network.

Abstract: A print control device and a printing device, which are connected through a network, automatically resume printing from a middle of the printing if a power of the printer is turned off during printing for some reasons and after the power is turned on again. The print control device adds a bidirectional communication start command to print data to be sent to the printing device, and stores the print data which has been sent to the printing device. The print control device receives information indicating pages already printed, the information being sent from the printing device.

Abstract: A printing system includes a printing apparatus, a terminal apparatus for transmitting and receiving information, a notification part notifying a user of the printing apparatus of information on authority of the user to use the printing apparatus, and a network connecting the printing apparatus, the terminal apparatus, and the notification means so that information transmission and reception in the system is performed through an electrical signal via the network.