Particle Emission Characteristics of Office Printers

详细信息    查看全文

• 作者：Congrong He ; Lidia Morawska ; Len Taplin
• 刊名：Environmental Science & Technology
• 出版年：2007
• 出版时间：September 1, 2007
• 年：2007
• 卷：41
• 期：17
• 页码：6039 - 6045
• 全文大小：223K
• 年卷期：v.41,no.17(September 1, 2007)
• ISSN：1520-5851

文摘

In modern society, printers are widely used in the officeenvironment. This study investigated particle number andPM_2.5 emissions from printers using the TSI SMPS, TSICPC 3022, and 3025A TSI P-Trak and DustTrak. The monitoringof particle characteristics in a large open-plan officeshowed that particles generated by printers can significantly(p = 0.01) affect the submicrometer particle numberconcentration levels in the office. An investigation of thesubmicrometer particle emissions produced by each of the62 printers used in the office building was also conductedand based on the particle concentrations in the immediatevicinity of the printers, after a short printing job, the printerswere divided into four classes: non-emitters, and low,medium, and high emitters. It was found that approximately60% of the investigated printers did not emit submicrometerparticles and of the 40% that did emit particles, 27%were high particle emitters. Particle emission characteristicsfrom three different laser printers were also studied inan experimental chamber, which showed that particleemission rates are printer-type specific and are affectedby toner coverage and cartridge age. While a morecomprehensive study is still required, to provide a betterdatabase of printer emission rates, as well as their chemicalcharacteristics, the results from this study imply thatsubmicrometer particle concentration levels in an officecan be reduced by a proper choice of the printers.