Abstract: Disclosed herein are a self-powered type handrail sterilizing device and a device for collecting visitor information using the same. The self-powered type handrail sterilizing device includes: a housing having an opening fastened to a handrail of an escalator or a moving walk; a power unit installed at an inner side of the housing to convert a rotational motion depending on driving of the handrail into power; and a ultraviolet lamp module installed on an inner surface of the opening of the housing and configured to irradiate sterilizing light to the handrail through the power of the power unit.

Abstract: Disclosed herein are a self-powered type handrail sterilizing device and a device for collecting visitor information using the same. The self-powered type handrail sterilizing device includes: a housing having an opening fastened to a handrail of an escalator or a moving walk; a power unit installed at an inner side of the housing to convert a rotational motion depending on driving of the handrail into power; and a ultraviolet lamp module installed on an inner surface of the opening of the housing and configured to irradiate sterilizing light to the handrail through the power of the power unit.

Abstract: A cleaning device for an image forming apparatus includes a magnetic brush for causing a magnetic carrier and a toner to slindingly rub a surface of a photoconductor and removing the residual toner adhering on the photoconductor surface. The cleaning device further comprises a toner recovery assembly with a bias voltage applied thereto and for electrostatically attracting the surplus toner in the magnetic brush, a detector for detecting a toner density of the magnetic brush in terms of a magnetic permeability or a resistance of the magnetic brush and a bias voltage control means for controlling the bias voltage to be applied to the toner recovering system in accordance with a detected output of the toner density detector.