Communication apparatus and control method of communication apparatus to assess a data reception state of a receiving apparatus

A communication apparatus comprising:

• a storage unit including a communication storage area for storing communication data with a communication apparatus of the other party;
• a processing unit configured to determine whether or not data reception from the communication apparatus of the other party is enabled so that,
• when the processing unit determines that reception is disabled, the processing unit checks whether or not the communication apparatus is in a memory full state where a vacant capacity of the communication storage area equals a predetermined capacity or smaller and whether or not the communication apparatus is in a priority mode so that,
• when the communication apparatus is in the priority mode, the processing unit determines that the priority mode is a factor of disabled reception and, when the communication apparatus is in the memory full state, the processing unit determines which of running out of paper sheet, accumulation of received image data, untransmitted image data, and print disable setting is a factor of disabled reception;
• a communication unit configured to perform data transmission and reception using a network;
• and
• an operation panel for accepting settings,
• wherein
• the storage unit
• stores relevant information for determining a time when disabled reception is resolved for each of factors of disabled reception, namely running out of paper sheet, accumulation of received image data, untransmitted image data, and print disable setting, and the priority mode, and
• stores the untransmitted data to be transmitted to the communication apparatus of the other party in the communication storage area and deletes the untransmitted data from the communication storage area after the transmission is performed,
• the processing unit obtains the relevant information corresponding to the determined factor from the storage unit, and calculates a reception enabled time until data reception becomes enabled by resolving disabled reception based on the obtained relevant information,
• the communication unit transmits a notification including an instruction of a wait time until the communication apparatus of the other party sends a request to start communication again when data reception from the communication apparatus of the other party is disabled, and transmits the reception enabled time calculated by the processing unit as the wait time,
• when the communication apparatus is in the memory full state and in addition the untransmitted image data is stored in the communication storage area, the processing unit
• determines that the untransmitted image data is the factor of disabled reception based on the memory full state,
• calculates as the reception enabled time a time period obtained by adding a required time necessary for data transmission to a time period from the current time point until a transmission start time of the untransmitted image data, and
• determines the required time based on a size of the untransmitted image data and a communication speed previously set on the operation panel or a data transmission speed to the network measured by the communication unit.