Ultra-fine particles (UFP) from laser printers - Influence of the fuser unit temperature on the particle formation

When laser printers are operating, ultrafine particles (UFPs, size < 0.1 m) may form and be released into the ambient air. With regard to avoid or minimizing these processes, information is required about the source inside the printer and about the UFP formation mechanisms. The present study attempts to ascertain what influence the temperature of the fuser has on UFP formation. As part of emission test chamber investigations with selected variations in the fuser temperature it emerged that there was a clear relationship between temperature and the number of UFPs measured.