viiPrefaceThank you for purchasing the Canon LaserBase MF5700 Series. Please read this manual thoroughly beforeoperating the machine in order to familiarize yourself with its capabilities, and to make the most of its manyfunctions. After reading this manual, store it in a safe place for future reference.How to Use This ManualSymbols Used in This ManualThe following symbols are used in this manual to explain procedures, restrictions, handlingprecautions, and instructions that should be observed for safety.Keys Used in This ManualThe following symbols and key names are a few examples of how keys to be pressed are expressed inthis manual. The operation panel keys on the machine are indicated within brackets.Press [Start].Press [Image Quality].Messages Displayed in the LCDThe following are a few examples of how messages in the LCD are expressed in this manual. Themessages are indicated within angle brackets.• If is displayed, the machine cannot scan the documents.• appears in the LCD.WARNING Indicates a warning concerning operations that may lead to death or injury to personsif not performed correctly. In order to use the machine safely, always pay attention tothese warnings.CAUTION Indicates a caution concerning operations that may lead to injury to persons, ordamage to property if not performed correctly. In order to use the machine safely,always pay attention to these cautions.IMPORTANTIndicates operational requirements and restrictions. Be sure to read these itemscarefully in order to operate the machine correctly, and to avoid damage to themachine.NOTE Indicates a clarification of an operation, or contains additional explanations for aprocedure. Reading these notes is highly recommended.