Abstract: A mediation server mediating between a terminal device and a communication device may be configured to: receive a permission request from a user terminal, the permission request is for requesting permission for the user terminal to communicate with the communication device via the mediation server; specify the communication information in a memory by using specifying information included in the permission request; send a receipt notification to an administration terminal by using the communication information; in a case where the administration terminal that has received the receipt notification from the mediation server accepts a predetermined operation, store authentication information to the memory; and in a case where the authentication information is stored in the memory in association with the device identification information, send a first storage notification to the user terminal.

Abstract: A server for a device information management system includes a terminal device, and a communication device. The server has a storage and a controller.

Abstract: A first printer may include a controller configured to: in a case where a first predetermined operation is accepted in a state where second printer identification information and specific service-related information are stored in association with each other in the server, cause the display unit to display a notification screen that prompts a second predetermined operation, the second predetermined operation being for changing a printer used for the service from a second printer to the first printer; and in a case where the second predetermined operation is accepted, send a printer changing request including first printer identification information to the server. In a case where the printer changing request is sent to the server, the first printer identification information is stored, instead of the second printer identification information, in association with the specific service-related information in the server.

Abstract: A server for a device information management system includes a terminal device, and a communication device. The server has a storage and a controller.

Abstract: A mediation server mediating between a terminal device and a communication device may be configured to: receive a permission request from a user terminal, the permission request is for requesting permission for the user terminal to communicate with the communication device via the mediation server; specify the communication information in a memory by using specifying information included in the permission request; send a receipt notification to an administration terminal by using the communication information; in a case where the administration terminal that has received the receipt notification from the mediation server accepts a predetermined operation, store authentication information to the memory; and in a case where the authentication information is stored in the memory in association with the device identification information, send a first storage notification to the user terminal.

Abstract: A server includes memory, a request receiver, a first transmitter, a second transmitter, and a first memory controller. The memory includes a first table to store first identification information identifying a communication device and first user information in association with each other. In response to a reset instruction to reset first identification information being input at a communication device storing the first identification information, the request receiver receive the first identification information, and an identification information request from the communication device. The first transmitter transmits second identification information different from the first identification information to the communication device. The second transmitter transmits the first identification information to the communication device, the first identification information being to be stored in the communication device instead of the second identification information.

Abstract: A first printer may include a controller configured to: in a case where a first predetermined operation is accepted in a state where second printer identification information and specific service-related information are stored in association with each other in the server, cause the display unit to display a notification screen that prompts a second predetermined operation, the second predetermined operation being for changing a printer used for the service from a second printer to the first printer; and in a case where the second predetermined operation is accepted, send a printer changing request including first printer identification information to the server. In a case where the printer changing request is sent to the server, the first printer identification information is stored, instead of the second printer identification information, in association with the specific service-related information in the server.

Abstract: A first printer may include a controller configured to: in a case where a first predetermined operation is accepted in a state where second printer identification information and specific service-related information are stored in association with each other in the server, cause the display unit to display a notification screen that prompts a second predetermined operation, the second predetermined operation being for changing a printer used for the service from a second printer to the first printer; and in a case where the second predetermined operation is accepted, send a printer changing request including first printer identification information to the server. In a case where the printer changing request is sent to the server, the first printer identification information is stored, instead of the second printer identification information, in association with the specific service-related information in the server.

Abstract: A server includes memory, a request receiver, a first transmitter, a second transmitter, and a first memory controller. The memory includes a first table to store first identification information identifying a communication device and first user information in association with each other. In response to a reset instruction to reset first identification information being input at a communication device storing the first identification information, the request receiver receive the first identification information, and an identification information request from the communication device. The first transmitter transmits second identification information different from the first identification information to the communication device. The second transmitter transmits the first identification information to the communication device, the first identification information being to be stored in the communication device instead of the second identification information.

Abstract: A first printer may include a controller configured to: in a case where a first predetermined operation is accepted in a state where second printer identification information and specific service-related information are stored in association with each other in the server, cause the display unit to display a notification screen that prompts a second predetermined operation, the second predetermined operation being for changing a printer used for the service from a second printer to the first printer; and in a case where the second predetermined operation is accepted, send a printer changing request including first printer identification information to the server. In a case where the printer changing request is sent to the server, the first printer identification information is stored, instead of the second printer identification information, in association with the specific service-related information in the server.

Abstract: A storage medium stores a control program including: when there is a conference server having processing load larger than or equal to first threshold, determining possible combinations from a plurality of combinations of the plurality of processes that is allocated to a plurality of conference servers, the possible combinations being combinations in which the processing load of each conference server is smaller than or equal to second threshold; calculating evaluation information for evaluating the plurality of processes, the evaluation information being calculated for each possible combination based on at least one of the plurality of conference servers that executes the plurality of processes and the plurality of terminal apparatuses participating in the plurality of teleconferences controlled by the plurality of processes; determining, based on the evaluation information, one of the possible combinations as an execution combination that is a combination of the processes to be executed by each conference se