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US 7,031,649 B2Granted
Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorTaisuke Matsuura
Life of this patent
Estimating the term…
Abstract
In an image forming apparatus including a transfer apparatus which transfers a toner image formed on an image bearing member to a transfer material in a transfer portion and a guide member which guides the transfer material conveyed toward the transfer portion, a contact portion which comes into contact with the transfer material in the guide member is made of a material which is charged in the same polarity as toner by friction against the transfer material, and surface resistivity is not lower than 103 Ω/sq and not more than 1011 Ω/sq.
Claims7
An image forming apparatus comprising:
- image forming means for forming a toner image on an image bearing member;
- transferring means for transferring the toner image on said image bearing member to a transfer material in a transfer portion;
- and
- a guide member which guides said transfer material conveyed toward said transfer portion,
- wherein a contact portion which comes into contact with said transfer material in said guide member is made of a material which is charged in the same polarity as toner by friction against said transfer material, and surface resistivity is not lower than 103 Ω/sq and not more than 1011 Ω/sq.
2 more elements
Dependencies are inferred from the claim text.