Image forming apparatus with AC current controlled contact charging
First Claim
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1. An image forming apparatus comprising:
- an image bearing member;
a charging member contactable said image bearing member to charge said image bearing member at a charging position;
wherein an AC current applied to said charging member is constant-current-controlled when a region of said image bearing member which is going to be an image formation region is at said charging position, and wherein a current flowing through said charging member is detected when a region of said image bearing member which is going to be a non-image-formation region is at said charging position, and said AC current is determined on the basis of the detected current.
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Abstract
An image forming apparatus includes an image bearing member; a charging member contactable the image bearing member to charge the image bearing member at a charging position; wherein an AC current applied to the charging member is constant-current-controlled when a region of the image bearing member which is going to be an image formation region is at the charging position, and wherein a current flowing through the charging member is detected when a region of the image bearing member which is going to be a non-image-formation region is at the charging position, and the AC current is determined on the basis of the detected current.
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Citations
5 Claims
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1. An image forming apparatus comprising:
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an image bearing member; a charging member contactable said image bearing member to charge said image bearing member at a charging position; wherein an AC current applied to said charging member is constant-current-controlled when a region of said image bearing member which is going to be an image formation region is at said charging position, and wherein a current flowing through said charging member is detected when a region of said image bearing member which is going to be a non-image-formation region is at said charging position, and said AC current is determined on the basis of the detected current. - View Dependent Claims (2, 3, 4, 5)
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Specification