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340/350/450 OPERATING INSTRUCTIONS SYSTEM SETTINGS Modes User Tools (System Settings) Read this manual carefully before you use this product and keep it handy for future reference. For safety, please follow the instructions in this manual. Introduction This manual contains detailed instructions on the operation and maintenance of this machine. To get maximum versatility from this machine all operators should carefully read and follow the instructions in this manual. Please keep this manual in a handy place near the machine. Please read the Safety Information before using this machine. It contains important information related to USER SAFETY and PREVENTING EQUIPMENT PROBLEMS. - Notes: Some illustrations may be slightly different from your machine. Certain options may not be available in some countries. For details, please contact your local dealer. Operator Safety: This machine is considered a CDRH class I laser device, safe for office/ EDP use. The machine con- tains two 5-milliwat, 760 - 800 nanometer wavelength, GaAIAs laser diodes. Direct (or indirect reflect- ed) eye contact with the laser beam might cause serious eye damage. Safety precautions and interlock mechanisms have been designed to prevent any possible laser beam exposure to the operator. Laser Safety: The Center for Devices and Radiological Health (CDRH) prohibits the repair of laser-based optical unit in the field. The optical housing unit can only be repaired in a factory or at a location with the requisite equipment. The laser subsystem is replaceable in the field by a qualified Customer Engineer. The laser chassis is not repairable in the field. Customer engineers are therefore directed to return all chassis and laser subsystems to the factory or service depot when replacement or the optical subsystem is re- quired. Warning: Use of controls or adjustment or performance of procedures other than those specified in this manual might result in hazardous radiation exposure. Notes: The model names of the machines do not appear in the following pages. Check the type of your ma- chine before reading this manual. (For details, see P.2 "Machine Types".)