Image Processing System, Image Processing Apparatus, Instruction Server, and Storage Medium

摘要

An image processing system includes: an image processing apparatus; an instruction server configured to transmit instruction information to the image processing apparatus via a router having a firewall function; and a session server configured to set up a session between the image processing apparatus and the instruction server. The image processing apparatus is configured to switch, in a case where the state of the image processing apparatus is a power saving state when a time specified by a transmission interval elapses from transmission of a connection confirmation packet for the session with the instruction server, to a state in which at least the connection confirmation packet can be transmitted.

主权项

1. An image processing system comprising:
an image processing apparatus; an instruction server configured to transmit instruction information to the image processing apparatus via a router having a firewall function; and a session server configured to set up a session between the image processing apparatus and the instruction server, the image processing apparatus including:
a processor; anda communication unit, the processor being configured to control a state of the image processing apparatus to be one of a plurality of states including a normal state and a power saving state in which a power consumption is smaller than a power consumption in the normal state, the communication unit being configured to transmit to the session server a connection confirmation packet for a session between the instruction server and the image processing apparatus, and the processor being configured to
adjust a transmission interval of the connection confirmation packet based on a connection state of the session between the instruction server and the image processing apparatus after previous transmission of the connection confirmation packet, so that the transmission interval is within a session timeout period for the firewall function of the router, andswitch the gate of the image processing apparatus to a state in which the communication unit can at least transmit a packet, in a case where the state of the image processing apparatus is the power saving state when a time specified by the transmission interval elapses from previous transmission of the connection confirmation packet.