发明名称 Status information acquisition from plural functions included in image processing apparatus
摘要 An image processing apparatus comprising: a data processing unit such as a printing unit; a first interface having a plurality of logical channels for connecting with an external processing apparatus; a second interface, compliant with the same communication standard as the first interface and having a plurality of logical channels that have a different configuration from the first interface, for connecting with the data processing unit; and a control unit for controlling data transfer between the first interface and the second interface is provided. The control unit controls to acquire status information of the data processing unit via a first logical channel of the second interface in response to a request command of status information of the data processing unit which is received from the external processing apparatus via the first interface, and acquire status information of the data processing unit via a second logical channel of the second interface at predetermined timing regardless of existence/absence of a request command of status information from the external processing apparatus.
申请公布号 US7295338(B2) 申请公布日期 2007.11.13
申请号 US20030414859 申请日期 2003.04.17
申请人 CANON KABUSHIKI KAISHA 发明人 SATAKE MAKOTO;KANOYADANI RYOJI
分类号 B41J29/38;G06F15/00;G06F3/12;G06F13/12;G06F13/14 主分类号 B41J29/38
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