Phaser 3250 Laser Printer Service Manual viiService Safety SummaryGeneral GuidelinesFor qualified service personnel only: Refer also to the preceding “Power SafetyPrecautions” on page v.Use care when servicing with power: Dangerous voltages may exist at severalpoints in this product. To avoid personal injury, do not touch exposedconnections and components while power is On. Disconnect power beforeremoving the power supply shield or replacing components.Do not wear jewelry: Remove jewelry prior to servicing. Rings, necklaces, andother metallic objects could come into contact with dangerous voltages andcurrents.Ozone: During normal operation, this machine produces ozone gas. Theamount of ozone produced does not present a hazard to the operator.However, it is advisable that the machine be operated in a well ventilatedarea.Warning LabelsRead and obey all posted warning labels. Throughout the printer, warninglabels are displayed on potentially dangerous components. As you service theprinter, check to make certain that all warning labels remain in place.Safety InterlocksMake sure all covers are in place and all Interlock Switches are functioningcorrectly after you have completed a printer service call. If you bypass anInterlock Switch during a service call, use extreme caution when working onor around the printer.Class 1 Laser ProductThe Phaser 3250 is certified to comply with Laser Product PerformanceStandards set by the U.S. Department of Health and Human Services as aClass 1 Laser Product. This means that this product does not emit hazardouslaser radiation; which is possible only because the laser beam is totallyenclosed during all modes of customer operation. When servicing the printeror laser unit, follow the procedures specified in this manual and there will beno hazards from the laser.