| 摘要 |
FIELD: physics. ^ SUBSTANCE: proposed device and printer with said device incorporate electronic component recording confidential data, housing of said component, housing cover, multiple cover fasteners arranged therein to vary their state in fitting or removing, control unit to detect change of state of said fasteners, recorder to record state changes, recorder to record the order of detected state changes. Control unit compares preset order written in preset order recorder with detected state changes to limit special operations of electronic component in case compared orders differ. ^ EFFECT: inhibited access to electronic component. ^ 9 cl, 8 dwg |
