Brother International HL-1660E Service Manual - Page 12

• EP-ED cartridge Normal (total storage time x 9/10) 0 ~ 35°C Severe (total storage time x 1/10) High Low 35°C ~ 60°C -20°C ~ 0°C Temperature change (within 3 minutes) High Low 60°C 15°C -20°C 25°C Relative humidity Normal (total storage time x 9/10) 35 ~ 85%RH Severe (total storage time x 1/10) High Low 85 ~ 95%RH 10 ~ 35%RH Air pressure 613 ~ 1013 hPa Total storage time 0.5 years Temperature Normal (2.45 years max.) 0 ~ 35°C Severe (0.05 years max.) High Low 35°C ~ 40°C -20°C ~ 0°C Temperature change (within 3 minutes) High Low 40°C 15°C -20°C 25°C Relative humidity Normal (2.45 years max.) 35 ~ 85%RH Severe (0.05 years max.) High Low 85 ~ 95%RH 10 ~ 35%RH Air pressure 613 ~ 1013 hPa Maximum total storage time: 2.5 years including used time 3. SAFETY INFORMATION 3.1 Laser Safety (110 ~ 120V Model only) This printer is certified as a Class 1 laser product under the US Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation, Since radiation emitted inside the printer is completely confined within the protective housings and external covers, the laser beam cannot escape from the machine during any phase of I - 6