Computer-readable medium, printing system, and method to perform printing while preventing insufficient amount of consumables

A printing system comprising:

• a printer;
• and
• an information processing device communicably connected with the printer,
• wherein the printer is configured to perform printing until a print permission amount different from consumable information reaches a particular threshold, the print permission amount being information regarding an amount of recording agent or sheets usable by the printer, the consumable information representing a usage state of a consumable supply for the printer, and
• wherein the information processing device comprises:
• a user interface;
• and
• a controller configured to:
• obtain a first number of sheets that indicates a remaining number of sheets printable by the printer according to the consumable information;
• in response to receiving, via the user interface, an instruction to add an additional print permission amount to the print permission amount, obtain a second number of sheets that indicates an additional number of sheets printable by the printer according to the additional print permission amount;
• determine whether the second number of sheets is more than the first number of sheets;
• and
• when determining that the second number of sheets is more than the first number of sheets, cause the user interface to provide a notification.

A method implementable on an information processing device communicably connected with a printer, the method comprising

• obtaining a first number of sheets that indicates a remaining number of sheets printable by the printer according to consumable information, the consumable information representing a usage state of a consumable supply for the printer, the printer being configured to perform printing until a print permission amount different from the consumable information reaches a particular threshold, the print permission amount being information regarding an amount of recording agent or sheets usable by the printer;
• in response to receiving, via the user interface, an instruction to add an additional print permission amount to the print permission amount, obtaining a second number of sheets that indicates an additional number of sheets usable by the printer according to the additional print permission amount;
• determining whether the second number of sheets is more than the first number of sheets;
• and
• when determining that the second number of sheets is more than the first number of sheets, causing the user interface to provide a notification.