Jet printer:
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Closes the CD / DVD tray, Opens
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Signals, Computer interface
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Input error sound, Pressing a keypad
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Old computer keyboard
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Computer simulated laser
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General noise, Office work
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Repeatedly pressing a computer mouse
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Franking machine
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Laser printer
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Computer keyboard
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Removed, The USB flash drive is inserted
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Modem connection, signal, interference
★★★★★