Abstract: A consumables management system includes a plurality of printers in each of which a consumables container is installed and each of which is configured to consume consumables contained in the consumables container, and a management unit connected via a network to the plurality of printers. The management unit manages container identification information assigned to the consumables container, device identification information assigned to each of the plurality of printers, and user identification information assigned to the user of each of the plurality of printers in association with one another.

Abstract: A liquid supply device includes a first liquid supply path that supplies ink to a first liquid supply port corresponding to a cartridge, a second liquid supply path that supplies ink in a second liquid container to a second liquid supply port corresponding to a cartridge, a selector that selects either the first liquid supply path or the second liquid supply path, an on-off valve and a pump that, when the first liquid supply path is selected by the selector, supplies ink via the first liquid supply path to the cartridge, and an on-off valve and the pump that, when the second liquid supply path is selected by the selector, supplies ink via the second liquid supply path to the cartridge.

Abstract: A consumables management system includes a plurality of printers in each of which a consumables container is installed and each of which is configured to consume consumables contained in the consumables container, and a management unit connected via a network to the plurality of printers. The management unit manages container identification information assigned to the consumables container, device identification information assigned to each of the plurality of printers, and user identification information assigned to the user of each of the plurality of printers in association with one another.

Abstract: A printing device includes a printing unit configured to use ink stored in an ink cartridge to perform printing on a medium, a remaining amount detector configured to detect a remaining amount of the ink stored in the ink cartridge, a maintenance unit configured to perform maintenance on the printing unit, and a display unit configured to perform predetermined notification regarding either replacement of the ink cartridge or refilling of the ink cartridge with the ink. Either the printing device or a server device includes a selector configured to select either the maintenance to be performed or the predetermined notification based on the remaining amount of the ink when an amount of the ink used for a predetermined time period is equal to or smaller than a defined amount based on information on the amount of the ink used.

Abstract: An ink container includes a storage section configured to store an ink, a supply tube configured to supply the ink stored in the storage section to a printer, a sealing member disposed in the supply tube, and a holding member configured to hold the sealing member. The holding member is detachably attached to the supply tube and has an indication that indicates that a refilling operation was performed.

Abstract: A printing device includes a printing unit configured to use ink stored in an ink cartridge to perform printing on a medium, a remaining amount detector configured to detect a remaining amount of the ink stored in the ink cartridge, a maintenance unit configured to perform maintenance on the printing unit, and a display unit configured to perform predetermined notification regarding either replacement of the ink cartridge or refilling of the ink cartridge with the ink. Either the printing device or a server device includes a selector configured to select either the maintenance to be performed or the predetermined notification based on the remaining amount of the ink when an amount of the ink used for a predetermined time period is equal to or smaller than a defined amount based on information on the amount of the ink used.

Abstract: Denitrated combustion exhaust gas is desulfurized with ammonia, the waste water obtained from washing the desulfurization waste water or dust ash is filtered using calcium carbonate, the pH of the filtrate is adjusted, carbon dioxide and/or aqueous carbonic acid is added and then a flocculating agent is added, and ammonia is recovered from the supernatant after precipitation and separation of the solid portion. The recovered ammonia is added to the denitrated gas for treatment of the combustion exhaust gas.

Abstract: Denitrated combustion exhaust gas is desulfurized with ammonia, the waste water obtained from washing the desulfurization waste water or dust ash is filtered using calcium carbonate, the pH of the filtrate is adjusted, carbon dioxide and/or aqueous carbonic acid is added and then a flocculating agent is added, and ammonia is recovered from the supernatant after precipitation and separation of the solid portion. The recovered ammonia is added to the denitrated gas for treatment of the combustion exhaust gas.