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US 2015/0177640 A1Published application
Image forming apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorHo Gun YOU
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes at least one developing device which may include a photoconductor and a developing roller, a light source configured to generate light to form an electrostatic latent image, a light scanner including a light window through which the light generated by the light source is transmitted, a shutter configured to open or close the light window, and a pressure member moved in response to the opening or closing operation of the shutter or the contact or separation between the photoconductor and the developing roller. The image forming apparatus can easily control the shutter without additional structures, resulting in implementation of a simplified structure.
Claims21
An image forming apparatus comprising:
- a main body;
- a developing device which includes a photoconductor and a developing roller that forms a visible image by applying a toner to the photoconductor on which an electrostatic latent image is formed and is detachably coupled to the photoconductor;
- a light scanner which includes a light source which generates light to form the electrostatic latent image by applying the light to the photoconductor, and a light window which transmits the light generated by the light source;
- a shutter which is rotatably moved among a standby position, an open position at which the light window is opened after being moved from the standby position to allow installation of the developing device, and a close position at which the light window is closed;
- and
- a pressure member which includes a pressure-member main body provided to move forward or backward between a first position and a second position, and a pressure protrusion provided to press the shutter and the developing device,
- wherein the pressure-member main body is interoperable with an opening or closing operation of the shutter or a contact or separation between the photoconductor and the developing roller,
- wherein the shutter includes:
- a shutter main body to open or close the light window;
- and
- a link device rotatably coupled to the shutter main body so that the link device rotatably moves among the standby position, the open position, and the close position, and
- wherein the link device includes a mounting protrusion pressed by the developing device when the developing device is mounted so that the shutter is protruded to move from the standby position to the open position.
9 more elements
An image forming apparatus comprising:
- a main body;
- a photoconductor unit including a photoconductor;
- a developing unit, rotatably coupled to the photoconductor unit, the developer unit includes a developing roller that forms a visible image by applying a toner to the photoconductor on which an electrostatic latent image is formed so that the developing roller is detachably coupled to the photoconductor, and a separation protrusion pressed so that the developing unit rotates;
- a light scanner which includes a light source which generates light to form an electrostatic latent image by applying the light to the photoconductor, a light window which transmits the light generated by the light source;
- a shutter which is rotatably provided to open or close the light window, and which includes a pressed part configured to be pressed so that the shutter rotatably moves;
- and
- a pressure member which includes a pressure-member main body provided to be rotatably moved forward or backward, and a pressure protrusion which protrudes from the pressure-member main body to press the separation protrusion and the pressed part,
- wherein the shutter includes:
- a shutter main body to open or close the light window;
- a link device which is rotatably coupled to the shutter main body, and which is rotatably moved among a standby position, an open position at which the light window is opened when the link device moves from the standby position due to installation of the developing device, and a close position at which the light window is closed, and
- wherein the link device includes a mounting protrusion pressed by the developing device when the developing device is mounted so that the shutter is protruded to move from the standby position to the open position.
8 more elements
An image forming apparatus comprising:
- a main body;
- a developing device which includes a photoconductor and a developing roller that forms a visible image by applying a toner to the photoconductor on which an electrostatic latent image is formed and is detachably coupled to the main body;
- a light scanner which includes a light source which generates light to form the electrostatic latent image by applying the light to the photoconductor, and which transmits the light generated by the light source;
- and
- a shutter which is rotatably moved among a standby position achieved when the developing device is not mounted, an open position at which the light window is opened, and a close position at which the light window is closed, and moved from the standby position to the open position in response to movement of the developing device mounted to the main body,
- wherein the shutter includes:
- a shutter main body corresponding to the light window such that the light window is opened or closed;
- a link device configured to include not only a first link member located upstream of a direction along which the developing device is mounted, but also a second link member located downstream of the direction along which the developing device is mounted, such that the shutter is rotatably moved among the standby position, the open position, and the close position;
- and
- a mounting protrusion provided at the second link member, and pressed by the developing device due to installation of the developing device so that the shutter is rotatably moved from the standby position to the open position.
7 more elements
Dependencies are inferred from the claim text.