Image forming apparatus and image forming method
AssigneeKonica Minolta Business Technologies, Inc.
InventorsYasuo Shirodai, Kuniaki Kashiwakura
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Abstract
An image forming apparatus of the present invention comprises an image carrier, a lubricant application device that applies a first lubricant to the image carrier surface, and a developing device that houses a developer to which a second lubricant is added and develops the electrostatic latent image formed on the image carrier. Here, the pure water contact angle θ1 of the first lubricant and the pure water contact angle θ2 of the second lubricant have the following relationship, θ1≦θ2. Furthermore, a frictional coefficient of the second lubricant may be larger than a frictional coefficient of the first lubricant.
Claims26
An image forming apparatus comprising:
- an image carrier;
- a lubricant application device that applies a first lubricant to the image carrier surface;
- and
- a developing device that houses a developer to which a second lubricant is added and develops the electrostatic latent image formed on the image carrier:
- wherein the pure water contact angle θ1 of the first lubricant and the pure water contact angle θ2 of the second lubricant have the following relationship:
- θ1<θ2.
An image forming apparatus comprising:
- an image carrier;
- a lubricant application device that applies a first lubricant to the image carrier surface;
- and
- developing device that houses a developer to which a second lubricant is added and that develops the electrostatic latent image formed on the image carrier:
- wherein the frictional coefficient μ1 of the first lubricant and the frictional coefficient μ2 of the second lubricant have the following relationship:
- μ1<μ2.
The image forming method comprising the steps of:
- applying a first lubricant to an image carrier surface;
- charging the image carrier surface;
- forming an electrostatic latent image via light irradiation of the charged image carrier surface;
- and
- developing to electrostatic latent hinge using a developing device that house a developer to which a second lubricant is added;
- wherein the pure water contact angle θ1 of the first lubricant and the pure water contact angle θ2 of the second lubricant have the following relationship:
- θ1<θ2.
The image forming method according to aim 12, wherein each of the first lubricant and the second lubricant comprises a fatty acid metallic salt.
The image forming method comprising the steps of:
- applying a first lubricant to an image carrier surface;
- charging the image carrier surface;
- forming an electrostatic latent image via light irradiation of the charged image carrier surface;
- and
- developing the electrostatic latent image using a developing device that houses a developer to which a second lubricant is added:
- wherein the frictional coefficient μ1 of the first lubricant and the frictional coefficient μ2 of the second lubricant have the following relationship:
- μ1<μ2.
An image forming apparatus comprising:
- an image carrier;
- a lubricant application device that applies a first lubricant to the image carrier surface;
- and
- a developing device, different from said lubricant application device, that houses a developer to which a second lubricant is added and develops the electrostatic latent image formed on the image carrier:
- wherein the pure water contact angle θ1 of the first lubricant and the pure water contact angle θ2 of the second lubricant have the following relationship:
- θ1<θ2.
An image forming method comprising the steps of:
- applying a first lubricant to an image carrier surface by means of a lubricant application device;
- charging the image carrier surface;
- forming an electrostatic latent image via light irradiation of the charged image carrier surface;
- and
- developing the electrostatic latent image using developing device that is different from said lubricant application device and that houses a developer to which a second lubricant is added;
- wherein the pure water contact angle θ1 of the first lubricant and the pure water contact angle θ2 of the second lubricant have the following relationship:
- θ1<θ2.
Dependencies are inferred from the claim text.