Lenovo GP20N manual Heat and product ventilation

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increase the risk of a battery short circuit, which could shorten the life of the battery and can also pose a safety hazard. Do not let rechargeable Lithium-Ion batteries completely discharge or store these batteries in a discharged state.

Heat and product ventilation

Computers, AC power adapters, and many accessories can generate heat when turned on and when batteries are charging. Always follow these basic precautions:

•Do not leave your computer, AC power adapter, or accessories in contact with your lap or any part of your body for an extended period when the products are functioning or when the battery is charging. Your computer, AC power adapter, and many accessories produce some heat during normal operation. Extended contact with the body could cause discomfort or, potentially, a skin burn.

•Do not charge the battery or operate your computer, AC power adapter, or accessories near flammable materials or in explosive environments.

•Ventilation slots, fans, and heat sinks are provided with the product for safety, comfort, and reliable operation. These features might inadvertently become blocked by placing the product on a bed, sofa, carpet, or other flexible surface. Never block, cover, or disable these features.

General safety guidelines xiii

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Contents GP20N First Edition May Statement Iv Lenovo USB Portable DVD Burner GP20N User Guide Contents Working with the Lenovo USB Portable DVD Burner Safety information Viii Lenovo USB Portable DVD Burner GP20N User Guide Service General safety guidelinesPower cords and power adapters Extension cords and related devices Batteries Heat and product ventilation Xiv Lenovo USB Portable DVD Burner GP20N User Guide Product description About the Lenovo USB Portable DVD BurnerLocating the controls Hardware and software requirements Power configuration Main featuresEasy connection Incorporation of the buffer underrun prevention functionInstalling the drive Installing and Using the Lenovo USB Portable DVD BurnerConnecting the drive Lenovo USB Portable DVD Burner GP20N User Guide Ejecting the media Loading the mediaManually ejecting the media Removing the drive Maintaining the drive Cleaning the driveCaring for the drive Before you begin Working with the Lenovo USB Portable DVD BurnerHandling and caring for the media Using the mediaUsing the CDs and DVDs media Using the DVD-RAM mediaUsing the DVD-Rs, DVD+Rs, DVD+RWs, and DVD-RWs media Using the CD-Rs and CD-RWs mediaYou cannot create a multi-session medium TroubleshootingYou cannot eject a CD or DVD medium Troubleshooting Lenovo USB Portable DVD Burner GP20N User Guide Physical specifications Appendix A. Product specificationsPower requirements Read Speeds Environmental requirementsWrite Speeds Lenovo USB Portable DVD Burner Appendix B. Electronic emission noticesIndustry Canada Class B emission compliance statement Appendix B. Electronic emission notices Avis de conformité à la directive de l’Union Européenne Unione Europea Directiva EMC Conformidad électromagnética Unión Europea Normativa EMCKorea Class B Compliance Japan Vcci Class B Compliance Turkish statement of compliance China RoHSVersion