VarioLink 6022/7522 9-4Care of the machine 99.1.7 Care of Authentication Unit (Biometric Type) AU-1012 ReminderBefore cleaning the authentication unit, disconnect it from the machine. If a force is applied to the USBport, it may be damaged.When cleaning the authentication unit, do not allow water to enter the authentication unit, otherwise thesystem may be damaged.Never use organic solvents, such as benzene or alcohol, to clean the authentication unit, otherwise itmay be damaged.2 NoteWhen disconnecting or connecting the authentication unit, turn off the machine with the main powerswitch, and then wait at least 10 seconds before turning it on again. The machine may not operatecorrectly if it is turned on immediately after being turned off.Hold the plug when plugging and unplugging the USB cable, otherwise the cable may be damaged.Care of the housingFrequency: Once a month, or when it is dirtyWipe the housing with a soft, dry cloth. If the housing cannot be cleaned by wiping it, wash it with a clothdampened with a mild detergent and wrung out well. After the housing is cleaned, rinse the cloth and wringit out well before wiping off the detergent.Care of the scannerFrequency: Once a month, or when it is dirty or covered with fingerprintsCare of the scanner Frequency: Once a month, or when it is dirty or covered with fingerprints Clean thescanner with a soft cloth used to wipe eyeglass lenses. If it is extremely dirty, clean it with an eyeglass lenscleaner.9.1.8 Care of Authentication Unit (IC Card Type) AU-2012 ReminderBefore cleaning the authentication unit, disconnect it from the machine. If a force is applied to the USBport, it may be damaged.When cleaning the authentication unit, do not allow water to enter the authentication unit, otherwise thesystem may be damaged.Never use organic solvents, such as benzene or alcohol, to clean the authentication unit, otherwise itmay be damaged.2 NoteWhen disconnecting or connecting the authentication unit, turn off the machine with the main powerswitch, and then wait at least 10 seconds before turning it on again. The machine may not operatecorrectly if it is turned on immediately after being turned off.