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Title:
通信システム、情報処理装置、出力装置、制御方法、及び、記憶媒体
Document Type and Number:
Japanese Patent JP4086372
Kind Code:
B2
Abstract:
It is an object to allow an output apparatus to certainly recognize an error when the error occurs at the time of a data transfer using an upper layer (IEEE 1284.4). In a communication system in which an information processing apparatus and an output apparatus can communicate data by using an interface constructed by the upper layer (IEEE 1284.4) and a lower layer (IEEE 1284), when the information processing apparatus detects an error at the time of a data communication using the upper layer, a predetermined command (device ID request) specified in the lower layer is used in order to allow the output apparatus to recognize the occurrence of the error.

Inventors:
Hideki Sugiyama
Application Number:
JP24343198A
Publication Date:
May 14, 2008
Filing Date:
August 28, 1998
Export Citation:
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Assignee:
Canon Inc
International Classes:
G06F3/12; G01R31/28; G06F11/00; G08C25/00; H03M13/00; H04L1/00
Domestic Patent References:
JP11203065A
JP7134692A
JP10031640A
JP9179809A
JP2000076024A
Attorney, Agent or Firm:
Keizo Nishiyama
Yuichi Uchio