Patent ID: 8261113
Filing Date: 2012-09-04
Classification: B41J,H04L

Abstract:
1. A data processing apparatus capable of communicating with a computer terminal over a network, the data processing apparatus comprising: a packet processing unit configured to receive a packet transmitted from the computer terminal and perform reply processing to the packet; a control unit configured to control the data processing apparatus; a power supplying unit configured to supply power in either one of a normal mode in which the power supplying unit supplies power to both the control unit and the packet processing unit and a power-saving mode in which the power supplying unit supplies power to the packet processing unit while supplying less power than the power supplied in the normal mode to the control unit; and a storage unit configured to store a packet pattern to which the packet processing unit accesses in the power-saving mode, wherein the packet processing unit is configured to, when a packet received by the packet processing unit in the power-saving mode matches a type of a first packet pattern stored in the storage unit, perform reply processing suited for the matched packet after returning a power supply mode in which the power supplying unit operates from the power-saving mode to the normal mode and to, when a type of the packet received by the packet processing unit in the power-saving mode matches a type of a second packet pattern stored in the storage unit, perform reply processing suited for the matched packet while maintaining the power supply mode in which the power supplying unit operates at the power-saving mode, and the storage unit is configured to change a type of a specific packet pattern stored in the storage unit from the type of the first packet to the type of the second packet pattern, in response to a specific status of a reception state in which the specific packet is received by the packet processing unit.