Casio FX-CG10 Software User Guide - Page 440
USB Connection Precautions, ERROR
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k USB Connection Precautions • Depending on the operating system your computer is running, perform one of the following operations on the computer to terminate a connection with the calculator. - Windows: Click the "Safely Remove Hardware" icon in the toolbar in the lower left corner of the display. On the menu that appears, select "USB mass storage device". Check to make sure the "Safe To Remove Hardware" message is displayed. - Mac OS: Drag the calculator drive to Trash. Check to make sure that the calculator drive is no longer on your desktop. • Never use a computer operation to format the calculator drive. Doing so will cause a "File System ERROR" message to appear on the calculator screen after you terminate the USB connection between the calculator and computer. When this happens, you will not be able to start up the calculator unless you perform an Initialize All operation, which deletes all data currently in calculator memory. For details, see "File System ERROR" (page α-8). • When copying a file from your computer's local disk to the calculator drive, it may take several minutes before copying starts. This is because copying automatically performs optimization of the calculator's storage memory. It does not indicate malfunction. For information about storage memory optimization, see "Optimizing Storage Memory" (page 11-13). • A USB connection between the calculator and a computer may be terminated automatically if the computer enters a power save mode, sleep mode, or any other standby state. 13-9