Particle emission characteristics of office printers.

摘要: In modern society, printers are widely used in the office environment. This study investigated particle number and PM2.5 emissions from using TSI SMPS, CPC 3022 3025A P-Trak DustTrak. The monitoring of characteristics a large open plan office, conducted continuously for over 48 hours, showed that particles generated by can significantly (p = 0.01) affect submicrometer concentration levels office. An investigation produced each 62 building was also conducted. terms emission levels, were divided into four classes non-emitters, low, medium high emitters, based on concentrations immediate vicinity printers, after short printing job. It found about 60% did not emit 40% particles, 27% emitters. Particle three different laser studied an experimental chamber, which rates printer type–specific affected toner coverage cartridge age. average class “low emitter‿ 0.04×109 min-1 (new with 5% coverage); 4.21×109 9.54×109 “medium (old 50% coverage, respectively); 41.1×109 cartridge, coverage), 92.8×109 76.3×109 coverage) 159×109 “high emitter‿. size distributions indicated higher emitters tended to generate more ultrafine (< 0.1 µm) than lower whilst trend different, having rate (0.29 ±0.07 µg min-1) showing nearly zero mass emissions. While comprehensive is still required provide better database rates, as well their chemical characteristics, results this imply be reduced proper choice printers.