| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic device in which the number of an interface with an option unit of e.g. a recording paper conveying means, etc., or with the body of the electronic device of e.g. the body of a printer, etc., is few and the connector of its part is small, economical, miniature and easily used and furthermore noise such as radial noise is little. SOLUTION: Interfaces(I/F) 11, 12, 13, 14 or 24, 25, 26, 27 or 39, 40, 41, 62 between means 3, 4 to be controlled are mutually made same as the interface(I/ F) with a control means 2 and the means 3, 4 to be controlled. The control means 2 changes over a selector 17 or 32 to select only a second control circuit of the necessary means to be controlled. The second control circuit is electrically connected with a first control circuit of the control means 2. The means 3 or 4 to be controlled is controlled by communication between the first control circuit and the selected second control circuit. |
