| 摘要 |
A charging apparatus includes a first magnetic particle carrying member for carrying magnetic particles; a second magnetic particle carrying member for carrying the magnetic particles, the second magnetic particle carrying member being disposed downstream of the first magnetic particle carrying member with respect to a moving direction of a member to be charged, wherein the magnetic particle are commonly used by the first magnetic particle carrying member and the second magnetic particle carrying member, and the member to be charged is electrically charged by contacting the magnetic particles carried on the first magnetic particle carrying member and the second magnetic particle carrying member to the member to be charged; and current measuring means for measuring a current flowing between the first and second magnetic particle carrying members through the magnetic particles which exist between the first and second magnetic particles.
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