US 9,811,131 B2
Information processing apparatus, method and storage medium for controlling power shifting based on whether search packet is serviceable
Tadahiro Nakamura, Yokohama (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 28, 2012, as Appl. No. 13/687,745.
Application 13/687,745 is a continuation of application No. 12/748,074, filed on Mar. 26, 2010, granted, now 8,347,125.
Claims priority of application No. 2009-082083 (JP), filed on Mar. 30, 2009.
Prior Publication US 2013/0091366 A1, Apr. 11, 2013
Int. Cl. G06F 1/32 (2006.01); G06F 1/26 (2006.01); H04N 1/00 (2006.01)
CPC G06F 1/26 (2013.01) [G06F 1/3209 (2013.01); H04N 1/00885 (2013.01); H04N 1/00891 (2013.01); H04N 1/00896 (2013.01); H04N 1/00973 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A printing apparatus having a plurality of services including at least a printing service and a scanning service, the printing apparatus comprising:
a first control unit configured to receive a packet transmitted from an external apparatus;
a second control unit configured to generate response data responding to the packet; and
a power supply unit configured to supply power to the second control unit,
wherein, in a case where power is not supplied to the second control unit by the power supply unit and the packet received by the first control unit is a search packet for searching for a device having a specific service, the first control unit is configured to determine whether the printing apparatus itself has the specific service specified by the search packet,
in a case where it is determined that the printing apparatus itself has the specific service specified by the search packet, the first control unit is configured to cause the power supply unit to supply power to the second control unit which generates the response data and uses the response data in responding to the packet,
in a case where it is determined that the printing apparatus itself does not have the specific service specified by the search packet, the second control unit remains without power from the power supply unit and the first control unit does not respond to the packet,
at least in a case where the specific service specified by the search packet is the printing service, the first control unit determines that the printing apparatus itself has the specific service specified by the search packet, and
at least in a case where the specific service specified by the search packet is the scanning service, the first control unit determines that the printing apparatus itself has the specific service specified by the search packet.