NEC 870 User Guide - Page 134

Appendix B: Safety Information As you operate your NEC SuperScript 870 printer, please be aware of the following safety considerations. Ozone Emission The corona assemblies found in laser printers and photocopiers generate ozone gas (O3) as a by-product of the electrophotographic process. Ozone is only generated while the printer is printing (while the coronas are energized). UL Standards for Ozone The only existing standard for ozone emissions has been established by Underwriters Laboratory (UL). All SuperScript family printers meet this standard when shipped from the factory to our customers. Employer Responsibilities Because ozone may be an irritant, various regulatory agencies have established limits to the amount of ozone to which employees may be exposed. The employer is responsible for providing a work environment that meets recommended safety standards. Recommendations for Minimizing Ozone Exposure Almost all ozone concerns arise from abnormal site or operating conditions. The following conditions may generate an ozone complaint: • Installation of multiple laser printers in a confined area • Extremely low relative humidity • Poor room ventilation • The exhaust port of the printer is directed towards the face of personnel • The existing ozone filter is in poor condition • Long, continuous printing combined with any of the above Inspect your work environment for the operating conditions listed above if you believe ozone emissions are a problem in your area. Some people may be ultra-sensitive to ozone odor. If these situations are encountered, it is advisable to position the printer away from the sensitive user. 134