Image forming device to notify of guiding message showing guidance on recycling cartridge

An image forming system comprising:

• a terminal device;
• and
• an image forming device configured to communicate with the terminal device, the image forming device comprising:
• an image forming unit configured to print an image on a sheet with colorant accommodated in a cartridge mounted on the image forming device;
• a notification device configured to notify of information;
• a plurality of mount units in which a plurality of cartridges is configured to be mounted;
• a main storage;
• and
• a controller configured to perform:
• at a prescribed time, a recycling potential determination process to determine whether the cartridge can be recycled;
• and
• when the recycling potential determination process determines that the cartridge can be recycled, a transmission process to transmit information indicating a result of the recycling potential determination process to the terminal device,
• wherein when the terminal device receives the information from the image forming device, the terminal device is configured to notify of a guiding message showing a guidance on recycling the cartridge,
• wherein the controller is configured to perform the recycling potential determination process on the basis of at least attribute information stored in a cartridge storage provided in the cartridge, the attribute information being related to an attribute of the colorant accommodated in the cartridge,
• wherein the attribute information indicates selected at least one of a first property and a second property different from the first property,
• wherein the controller is configured to further perform:
• a first determination process to determine whether the attribute information stored in the cartridge storage of the cartridge indicates the first property or the second property, the first determination process determining that the cartridge cannot be recycled when the attribute information indicates the first property whereas the first determination process determining that the cartridge can be recycled when the attribute information indicates the second property;
• a storing process when the first determination process determines that the cartridge cannot be recycled, the storing process being to store, in the main storage, unrecyclable information in association with a mount unit in which the cartridge is mounted among the plurality of mount units;
• and
• a second determination process to determine whether the cartridge is mounted in a specific mount unit that is a mount unit associated with the unrecyclable information among the plurality of mount units, the second determination process determining that the cartridge cannot be recycled when the cartridge is mounted in the specific mount unit whereas the second determination process determining that the cartridge can be recycled when the cartridge is mounted in a mount unit not associated with the unrecyclable information among the plurality of mount units,
• wherein the recycling potential determination process determines that the cartridge can be recycled when a prescribed condition is satisfied, the prescribed condition including at least a condition that the first determination process determines that the cartridge can be recycled and a condition that the second determination process determines that the cartridge can be recycled.