An output processing device includes a communication section for communicating with an external device such as a user terminal, an output section for executing a printout of stored data, and a controller which controls printing and communication operations. The controller of the output processing device creates print instruction data, which it distributes to the external device. When reply data including a quote of the distributed print instruction data is received from the external device, the controller controls the output processing device to perform printout operations of the stored data and/or communication operations in accordance with the reply data received from the external device. Instruction data for controlling print operations and managing the stored data can be added to the reply data at the external device, and the output processing device performs operations in accordance with the reply data and any instruction data added thereto.