Patent ID: 6339688
Filing Date: 2002-01-15
Classification: G03G

Abstract:
An air filtering apparatus in a printer, comprising:a charger having a wire applying electric potential to a photoreceptor web; a holder supporting said charger, having a grid disposed between said charger and said photoreceptor web, and having an opening disposed adjacent to said charger opposite to said grid; a longitudinal hollow duct having a longitudinal side disposed adjacent to said opening of said holder, having a longitudinal passage formed inside said duct along said longitudinal side; a longitudinal slot formed on said longitudinal side of said duct along said wire in a longitudinal direction and disposed between said opening and said longitudinal passage; an exhaust hole formed on one end wall of said longitudinal side of said duct and communicated with said longitudinal passage; a pump connected to said exhaust hole, sucking air inside of said holder through said opening, said slot, said longitudinal passage and said exhaust hole in sequence, said pump discharging the air outside said duct through a pipe coupled to said pump; and a filter connected to said pipe, filtering the air and removing pollutants contained in the air.