Printer and non-transitory computer-readable recording medium storing computer-readable instructions for printer

A printer comprising:

• a memory configured to store, for each of one or more user identification information, the user identification information and registration related information which is related to registration of print setting information in association with each other, the registration related information being either of permission information indicating that registration of the print setting information is permitted or restriction information indicating that registration of the print setting information is restricted;
• a communication interface;
• and
• a controller configured to:
• receive first user identification information from an external device via the communication interface;
• in a case where the first user identification information is received from the external device in a state where registration related information associated with the first user identification information is the restriction information, send a restriction request to the external device via the communication interface, the first user identification information being included in the one or more user identification information in the memory, and the restriction request being for requesting restriction on sending of a registration request for requesting registration of the print setting information to the memory, wherein in a case where the first user identification information is received from the external device in a state where the registration related information associated with the first user identification information in the memory is the permission information, the restriction request is not sent;
• receive the registration request including first print setting information from the external device via the communication interface in the state where the registration related information associated with the first user identification information in the memory is the permission information;
• and
• in a first case where the first user identification information and the registration request are received from the external device and the registration related information associated with the first user identification information in the memory is the permission information, register the first print setting information included in the registration request to the memory in association with the first user identification information,
• wherein in a second case where the first user identification information is received from the external device and the registration related information associated with the first user identification information in the memory is the restriction information, the first print setting information is not registered to the memory.

A non-transitory computer-readable recording medium storing computer-readable instructions for a printer,

• the printer comprising:
• a processor;
• a memory configured to store, for each of one or more user identification information, the user identification information and registration related information which is related to registration of print setting information in association with each other, the registration related information being either of permission information indicating that registration of the print setting information is permitted or restriction information indicating that registration of the print setting information is restricted;
• and
• a communication interface,
• wherein the computer-readable instructions, when executed by the processor, cause the printer to:
• receive first user identification information from an external device via the communication interface;
• receive a registration request including first print setting information from the external device via the communication interface, the registration request being for requesting registration of print setting information to the memory;
• and
• in a first case where the first user identification information and the registration request are received from the external device and the registration related information associated with the first user identification information among the one or more user identification information in the memory is the permission information, register the first print setting information included in the registration request in the memory in association with the first user identification information,
• wherein in a second case where the first user identification information and the registration request are received from the external device and the registration related information associated with the first user identification information is the restriction information, the first print setting information is not registered in the memory.

A non-transitory computer-readable recording medium storing computer-readable instructions for a printer,

• the printer comprising:
• a processor;
• a memory configured to store, for each of one or more user identification information, the user identification information and registration related information which is related to registration of print setting information in association with each other, the registration related information being either of permission information indicating that registration of the print setting information is permitted or restriction information indicating that registration of the print setting information is restricted;
• and
• a communication interface,
• wherein the computer-readable instructions, when executed by the processor, cause the printer to:
• receive first user identification information from an external device via the communication interface;
• in a case where the first user identification information is received from the external device in a state where registration related information associated with the first user identification information is the restriction information, send a restriction request to the external device via the communication interface, the first user identification information being included in the one or more user identification information in the memory, and the restriction request being for requesting restriction on sending of a registration request for requesting registration of the print setting information to the memory, wherein in a case where the first user identification information is received from the external device in a state where the registration related information associated with the first user identification information in the memory is the permission information, the restriction request is not sent;
• receive the registration request including first print setting information from the external device via the communication interface in the state where the registration related information associated with the first user identification information in the memory is the permission information;
• and
• in a first case where the first user identification information and the registration request are received from the external device and the registration related information associated with the first user identification information in the memory is the permission information, register the first print setting information included in the registration request to the memory in association with the first user identification information,
• wherein in a second case where the first user identification information is received from the external device and the registration related information associated with the first user identification information in the memory is the restriction information, the first print setting information is not registered to the memory.