Image forming apparatus supplying toner efficiently to cleaning means cleaning surface of image bearing member

An image forming apparatus having:

• an image bearing member bearing a toner image;
• a recording material carrying member that carries a recording material and can contact with said image bearing member;
• transferring means that transfers a toner image on said image bearing member to a recording material carried on said recording material carrying member at a transferring position;
• bias applying means that applies a bias to a power supply portion of said transferring means during a time period in which transfer is performed by said transferring means;
• cleaning means that comes into contact with said image bearing member to clean a surface of said image bearing member;
• toner supplying means that, at a time when an image is not being formed, passes a toner image for supply formed on said image bearing member through the transferring position to supply the toner image for supply to said cleaning means;
• and
• switching means that switches from a state in which said power supply portion is electrically connected to said bias applying means to a state in which a resistance value between said power supply portion and a ground is equal to or greater than 100 MΩ;
• wherein, a state when the toner image for supply on said image bearing member passes through the transferring position is said state where the resistance value is equal to or greater than 100 MΩ.

An image forming apparatus having:

• an image bearing member bearing a toner image;
• transferring means that transfers a toner image on said image bearing member to a recording material at a transferring position;
• bias applying means that applies a bias to a power supply portion of said transferring means during a time period in which transfer is performed by said transferring means;
• cleaning means that contacts with said image bearing member to clean a surface of said image bearing member;
• toner supplying means that, at a time when an image is not being formed, passes a toner image for supply formed on said image bearing member through the transferring position to supply the toner image for supply to said cleaning means;
• and
• switching means that switches from a state in which said power supply portion is electrically connected to said bias applying means to a state in which a resistance value between said transferring means and a ground is equal to or greater than 100 MΩ;
• wherein, a state when the toner image for supply on said image bearing member passes through the transferring position is said state where the resistance value is equal to or greater than 100 MΩ.