US 2015/0309440 A1Published application

Image forming apparatus

AssigneeOki Data Corporation

InventorTakeshi ISHII

Life of this patent

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Abstract

Provided is an image forming apparatus that includes a first image forming section configured to form an auxiliary layer, a second image forming section configured to form an image layer, and a controller. The first and the second image forming sections each include an image supporting member configured to support a latent image on a surface thereof and a developer supporting member configured to support, on a surface thereof, a developer. The controller is configured to control the first and the second image forming sections to allow a first velocity and a second velocity to be different from each other. The first velocity is a traveling velocity of the surface of the developer supporting member in the first image forming section, and the second velocity is a traveling velocity of the surface of the developer supporting member in the second image forming section.

Claims15

Dependent claims

An image forming apparatus, comprising:

a first image forming section including an image supporting member and a developer supporting member, and configured to form an auxiliary layer, the image supporting member being configured to support a latent image on a surface thereof, and the developer supporting member being configured to support, on a surface thereof, a developer that is to be supplied to the image supporting member and allows the latent image to be developed;
a second image forming section including an image supporting member and a developer supporting member, and configured to form an image layer, the image supporting member being configured to support a latent image on a surface thereof, and the developer supporting member being configured to support, on a surface thereof, a developer that is to be supplied to the image supporting member and allows the latent image to be developed;
and
a controller configured to control the first image forming section and the second image forming section to allow a first velocity and a second velocity to be different from each other, the first velocity being a traveling velocity of the surface of the developer supporting member in the first image forming section, and the second velocity being a traveling velocity of the surface of the developer supporting member in the second image forming section.

1 more element

An image forming apparatus, comprising:

a first image forming section including an image supporting member and a developer supporting member, and configured to form an auxiliary layer, the image supporting member being configured to support a latent image on a surface thereof, and the developer supporting member being configured to support, on a surface thereof, a developer that is to be supplied to the image supporting member and allows the latent image to be developed;
a second image forming section including an image supporting member and a developer supporting member, and configured to form an image layer, the image supporting member being configured to support a latent image on a surface thereof, and the developer supporting member being configured to support, on a surface thereof, a developer that is to be supplied to the image supporting member and allows the latent image to be developed;
and
a controller configured to control the first image forming section and the second image forming section to allow a first velocity ratio and a second velocity ratio to be different from each other, the first velocity ratio being a ratio of a traveling velocity of the surface of the developer supporting member to a traveling velocity of the surface of the image supporting member in the first image forming section, and the second velocity ratio being a ratio of a traveling velocity of the surface of the developer supporting member to a traveling velocity of the surface of the image supporting member in the second image forming section.

1 more element

An image forming apparatus, comprising:

a first image forming section including an image supporting member, a developer supporting member, a developer regulating member, and a power supply section, and configured to form an auxiliary layer, the image supporting member being configured to support a latent image on a surface thereof, the developer supporting member being configured to support, on a surface thereof, a developer that is to be supplied to the image supporting member and allows the latent image to be developed, the developer regulating member being configured to be in contact with the surface of the developer supporting member to form a layer of the developer on the surface of the developer supporting member, and the power supply section being configured to apply a voltage to the developer regulating member;
a second image forming section including an image supporting member, a developer supporting member, a developer regulating member, and a power supply section, and configured to form an image layer, the image supporting member being configured to support a latent image on a surface thereof, the developer supporting member being configured to support, on a surface thereof, a developer that is to be supplied to the image supporting member and allows the latent image to be developed, the developer regulating member being configured to be in contact with the surface of the developer supporting member to form a layer of the developer on the surface of the developer supporting member, and the power supply section being configured to apply a voltage to the developer regulating member;
and
a controller configured to control the power supply sections to allow a first voltage value and a second voltage value to be different from each other, the first voltage value being an absolute value of the voltage applied to the developer regulating member in the first image forming section, and the second voltage value being an absolute value of the voltage applied to the developer regulating member in the second image forming section.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 14/689,779Filed 17 Apr 2015
Priority: JP 2014-08998824 Apr 2014
Published: 29 Oct 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G03G 15/065
For developing: arrangements for controlling the potential of the developing electrode
G03G 15/0178
Structure of complete machines: using more than one reusable electrographic recording member, e.g. one for every monocolour image
G03G 15/0806
Using a solid developer, e.g. powder developer: on a donor element, e.g. belt, roller
G03G 15/0812
On a donor element, e.g. belt, roller: characterised by the developer regulating means, e.g. structure of doctor blade