CORONA DISCHARGER AND UNIT

摘要

A corona discharger and unit in which a crack of a surface layer of a discharge wire is provided. The corona discharger includes a discharge wire 23, holding portions 61, 62 for holding the discharge wire 23 aat a longitudinal opposite end portions of the discharge wire 23, wherein the discharge wire 23 comprises base material of metal, and a surface layer of the material comprising carbon on a part of the base material, and discharge wire 23 includes a coated region coated with the surface layer, and a non-coated region at the opposite sides of the coated region with respect to the longitudinal direction of the discharge wire 23, and wherein the opposite end portions of the discharge wire 23 is in the non-coated region.

主权项

1. A controller discharger comprising:
a discharge wire stretched in said corona discharger and configured to electrically discharge by being supplied with a voltage, said discharge wire including a base material of metal, and a surface layer comprising diamond-like carbon formed on said base material; a first connecting portion configured to connect one of end portion of said discharge wire; a second connecting portion configured to connect the other end portion of said discharge wire, wherein said discharge wire includes a coated region coated with said surface layer and non-coated regions not coated with said surface layer in opposite sides of the coated region with respect to a longitudinal direction of said discharge wire, respectively and wherein the one end portion and the other end portion of said discharge wire are in the non-coated regions, respectively.