Image forming apparatus with film transfer member
AssigneeSeiko Epson Corporation
InventorsKazuhiro Ichikawa, Yoshiro Koga
Life of this patent
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Abstract
A transfer means has a film lightly contacting a back surface of a transfer medium and applying a transfer field thereto. The film rises rapidly with respect to a contact portion with the back surface of the transfer medium on the upstream side of the direction of movement of the transfer medium relative to the film, and slopes gently from the contact portion in a continuous curve on a downstream side of the direction of movement. The film is capable of displacement between a support and an image carrier, and contacts and disengages the transfer medium according to the presence or absence of electrostatic adsorptive force due to the supply or withdrawal of an electric current.
Claims11
An image forming apparatus comprising:
- an image carrier, a toner image being formed on a surface thereof;
- and
- a transfer means for applying a transfer field between said image carrier and a moving transfer medium to transfer said toner image formed on said surface of said image carrier onto a surface of said moving transfer medium, said transfer means having a film lightly contacting a back surface of said transfer medium and applying said transfer field thereto;
- wherein said film of said transfer means rises rapidly with respect to a contact portion with said back surface of said transfer medium upstream of a direction of movement of said transfer medium relative to said film, and slopes gently from said contact portion in a continuous curve downstream of said direction of movement.
Dependencies are inferred from the claim text.