Patent ID: 7295338

Claim:
An image processing apparatus comprising: a data processing unit; a first interface unit, having a plurality of logical channels, adapted to connect with an external processing apparatus; a second interface unit, compliant with a same communication standard as said first interface unit and having a plurality of logical channels that have a different configuration from said first interface unit, adapted to connect with said data processing unit; and a control unit adapted to control data transfer between said first interface unit and said second interface unit, wherein said control unit controls to acquire status information, needed by the external processing apparatus, out of status information that said data processing unit possesses via a first logical channel of said second interface unit in response to a request from the external processing apparatus via a first logical channel of said first interface unit, and acquire status information, needed by said image processing apparatus, out of said status information that said data processing unit possesses via a second logical channel of said second interface unit regardless of existence/absence of a request from the external processing apparatus.