[Patent application number] 20100103273 [Published] 04-29-2010 [Description] 
COMMUNICATION APPARATUS, CONTROL METHOD OF COMMUNICATION APPARATUS, PROGRAM, AND SYSTEM - A communication apparatus includes a transfer unit configured to transfer data to an external apparatus, and a determination unit configured to determine that a transfer of first data is completed by the transfer unit, wherein the transfer unit transfers second data, at a reduced communication speed, to cause the external apparatus to operate the first data, after the determination unit determines that the transfer of the first data has been completed.