Abstract: A service printer includes a printer printing unit that executes a print function, a scanning unit that executes a scan function, a printer communication unit that acquires, from a service providing server that provides a delivery service of delivering ink, status information indicating at least one of the status of a contract for use of the delivery service and the status of payment of the usage fee for the delivery service, and a printer controller that enables or disables execution of the print function and execution of the scan function based on at least one of the contract status and the payment status that are indicated by the status information acquired by the printer communication unit.

Abstract: A service providing server providing a delivery service delivering ink includes an obtaining section configured to obtain first use information associated with use of the delivery service by a first user, a determination section configured to determine a corresponding charge plan which is one of charge plans of the delivery service corresponding to the first use information obtained by the obtaining section based on the first use information obtained by the obtaining section, second use information associated with use of the delivery service by a second user, and a selected charge plan which is one of the charge plans of the delivery service selected by the second user, and a display controller configured to display corresponding charge plan information indicating the corresponding charge plan determined by the determination section in a terminal device of the first user.

Abstract: A service providing server providing a delivery service delivering ink includes an obtaining section configured to obtain first use information associated with use of the delivery service by a first user, a determination section configured to determine a corresponding charge plan which is one of charge plans of the delivery service corresponding to the first use information obtained by the obtaining section based on the first use information obtained by the obtaining section, second use information associated with use of the delivery service by a second user, and a selected charge plan which is one of the charge plans of the delivery service selected by the second user, and a display controller configured to display corresponding charge plan information indicating the corresponding charge plan determined by the determination section in a terminal device of the first user.

Abstract: A service printer includes a printer printing unit that executes a print function, a scanning unit that executes a scan function, a printer communication unit that acquires, from a service providing server that provides a delivery service of delivering ink, status information indicating at least one of the status of a contract for use of the delivery service and the status of payment of the usage fee for the delivery service, and a printer controller that enables or disables execution of the print function and execution of the scan function based on at least one of the contract status and the payment status that are indicated by the status information acquired by the printer communication unit.

Abstract: A device management server that manages a plurality of devices includes a receiving unit that receives consumables information on a status of consumables in the devices, a first determination unit that determines whether or not a first device needing replacement of the consumables is included in the devices, a second determination unit that, when the first device is included in the devices, determines whether or not a second device needing replacement of the consumables is included in the devices other than the first device, and a delivery instruction unit that, when the second device is included in the devices, provides an instruction to deliver a replenishment item of the consumables needed by the first device for replacement and a replenishment item of the consumables needed by the second device for replacement.