Preface 3PrefaceThank you for purchasing Oki Multifunctional Digital Systems or Multifunctional Digital Color Systems.This manual explains about the conditions and settings for using the Multifunctional Digital Systems which complieswith IEEE Std 2600.1 TM-2009.Read this manual carefully before using your Multifunctional Digital Systems under the high security mode. For thesecurity precautions on operating the equipment complying with IEEE Std 2600.1TM -2009, refer to “SecurityPrecautions” in the “Safety Information”.Keep this manual within easy reach and use it to maintain the equipment complying with IEEE Std 2600.1TM -2009.If you find any evidence of the suspicious opening of received cartons or you are not sure how it has been packed,contact your sales representative. How to read this manual Symbols in this manualIn this manual, some important items are described with the symbols shown below. Be sure to read these itemsbefore using this equipment. Target audience for this manualThis is the manual for equipment administrators. It is not necessary for general users to read this manual. Optional equipmentFor the available options, refer to the Quick Start Guide. TrademarksFor trademarks, refer to the Safety Information.Indicates a potentially hazardous situation which, if not avoided, could result in death, seriousinjury, or serious damage, or fire in the equipment or surrounding objects.Indicates a potentially hazardous situation which, if not avoided, may result in minor ormoderate injury, partial damage to the equipment or surrounding objects, or loss of data.Indicates information to which you should pay attention when operating the equipment.Describes handy information that is useful to know when operating the equipment.Pages describing items related to what you are currently doing. See these pages as required.