Printer and communication system

A non-transitory computer readable storage medium storing instructions, the instructions, when executed by a processor of a printer, causing the printer to perform:

• in a case where a new consumable item is determined to be installed in the printer as a replacement for a current consumable item based on related information associated with a status of use of the current consumable item, receiving a first code from a server, the first code being assigned to a first consumable item to be installed in the printer;
• obtaining a second code associated with a second consumable item from the second consumable item, wherein the second consumable item is provided as a replacement for the current consumable item;
• determining whether the first code corresponds to the second code;
• and
• providing a notification based on whether the first code corresponds to the second code, the notification indicating whether the second consumable item was determined to replace the current consumable item.

A communication system comprising:

• a server;
• a first printer;
• and
• a second printer,
• wherein the server comprises a memory storing:
• specific user information;
• first printer identifying information identifying the first printer;
• a first code assigned to a first consumable item to be installed in the first printer;
• second printer identifying information identifying the second printer;
• and
• a second code assigned to a second consumable item to be installed in the second printer,
• wherein the memory stores the specific user information, the first printer identifying information and the first code in association with each other, and
• wherein the memory stores the specific user information, the second printer identifying information and the second code in association with each other,
• wherein the server further comprises a server-side controller configured to perform steps of:
• in a case where a consumable item is to be installed in the first printer as a replacement for a current consumable item installed in the first printer, receiving a code associated with the consumable item and the first printer identifying information from the first printer, the consumable item being one of the first consumable item and the second consumable item;
• in a case where the code and the first printer identifying information are received, specifying the first code associated with the first printer identifying information stored in the memory;
• determining whether the received code corresponds to the specified first code;
• and
• based on whether the received code is determined to correspond to the specified first code, sending a specific notification to the first printer,
• wherein the first printer comprises a printer-side controller configured to perform steps of:
• obtaining the code from the consumable item, the consumable item being one of the first consumable item and the second consumable item;
• sending, to the server, the obtained code and the first printer identifying information;
• and
• in a case where the specific notification is received from the server based on the obtained code and the first printer identifying information being sent to the server, executing a notification operation.