Abstract: An image forming device includes a device main body having a developer receiving port, and a developer discharge unit having a developer discharge port. When the developer discharge unit is attached to the device main body, the developer receiving port and the developer discharge port overlap each other. As the developer discharge unit is attached to the device main body, a shutter opens in a direction that is different from an attaching direction of the developer discharge unit. The developer discharge port of the developer discharge unit is opened accompanying an opening movement of the shutter, and an opening portion of the developer discharge port and an opening portion of the developer receiving port overlap each other at all times.

Abstract: In an image forming apparatus, a second shutter is caused to slide in conjunction with a first shutter which slides in the mounting direction in association with a mounting operation of a developing device to an apparatus body. Accordingly, in association with a separating movement of the developing device from the apparatus body, the first shutter is caused to slide in association with the second shutter which slides in the separating direction, which is the opposite direction from the mounting direction. The direction that the second shutter opens a discharge port is the same direction as the mounting direction. An urging force that a first urging member applies to the first shutter which closes an inlet port is smaller than an urging force that the second urging member is applied to the second shutter which closes the discharge port.

Abstract: An image forming device includes an electrostatic latent image carrier which carries a latent image, a main frame which supports the latent image carrier, and a developing unit which is inserted removably in the main frame. The developing unit includes a developer carrier which supplies a developer to the electrostatic latent image carrier and a replenish chamber which replenishes the developer to the developer carrier. The image forming device also includes an operating unit to press or not press the developing unit by sliding a pressing body provided on the main frame, a manual operation unit provided on the operating unit and set at an operational position and a standby position, and a protrusion formed along an operational direction of the manual operation unit on a side surface of the developing unit located to the manual operation unit when the developing unit is inserted.

Abstract: A paddle includes a plurality of axially divided components that are connected together, each component including axially extending blades, wherein the blades overlap with blades provided on a component adjacent to the corresponding component in the circumferential direction.

Abstract: A developing device includes a sealing member for sealing an end of a developing roller to prevent developer from leaking from the interior of a casing. The casing includes a first plane and a second plane. A blade is mounted to the first plane and the blade regulates the amount of developer on the developing roller. The second plane is positioned upwardly of the first plane. The sealing member is positioned so that an end surface is located between the first plane and the second plane, and is mounted to the casing. The blade is mounted so as to press the end surface of the sealing member.

Abstract: A developing unit includes a container in which a developer is accumulated inside, a developer filling opening which is formed on the container and a gripper which is fixed on an outer surface of the container so as to cover the developer filling opening.

Abstract: An image forming device includes a device frame, a developing unit which is inserted into the device frame in a prescribed inserting direction, two terminals which are provided in the device frame, a metal conduction member which is provided in the developing unit and makes contact with at least one of the terminals, and a detecting unit which detects a presence or an absence of continuity between the terminals. Identification protrusions are fixed on an upper surface of the developing unit for determining compatibility between the developing unit and device frame.

Abstract: A regulating member includes a protrusion protruding from a supporting member toward a developing roller. The length of the supporting member in the longitudinal direction is longer than the length of the protrusion in the longitudinal direction. A seal member includes an extending portion extending from a space for carrying developing agent. The extending portion is turned backward along an end of the regulating member with respect to the longitudinal direction thereof toward the supporting member.

Abstract: A developing unit includes an impressed member to which a voltage is impressed, a contact member which is made of a metal wire rod and urged by an elastic force to make contact with the impressed member and to be connected electrically with the impressed member, and a supporting plate member which supports the contact member at an inner surface side and exposes a part of the contact member as a contact part for an outer connection to an outer surface from an attaching hole.

Abstract: A developing device includes toner, a casing accommodating the toner, a developing roller rotatably fixed on the casing, an elastic blade making contact with a circumferential surface of the developing roller, a seal member, and a cutout portion in the seal member. The seal member is arranged to make contact with a circumferential surface of end portions of the developing roller between the developing roller and a wall surface of the casing and to make contact with an end surface of a tip end of the elastic blade. The cutout portion is arranged on the seal member and is cut out at a portion at a side making contact with a side surface of the tip end of the elastic blade in an axial direction of the developing roller and a side located closer to the wall surface of the casing than the elastic blade in a radial direction of the developing roller.

Abstract: An image forming device includes an electrostatic latent image carrier on which an electrostatic latent image is formed, a main frame which supports the electrostatic latent image carrier, and a developing unit which is inserted removably in the main frame. The developing unit includes a developer carrier which supplies a developer to the electrostatic latent image carrier and a replenish chamber which replenishes the developer to the developer carrier.

Abstract: An image forming device includes an electrostatic latent image carrier on which an electrostatic latent image is formed, a main frame which supports the electrostatic latent image carrier and a developing unit. The developing unit includes a developer carrier for supplying a developer to the electrostatic latent image carrier and a replenish chamber for replenishing the developer in the developer carrier. The developing unit is inserted removably in the main frame. A pressing mechanism is provided on the main frame and presses a bottom surface of the developing unit in a pressing direction along a straight line orthogonal to a rotational center shaft of the electrostatic latent image carrier and a rotational center shaft of the developer carrier. The developing unit includes a guide member which is fit into one end part of the rotational shaft of the electrostatic latent image carrier and guides the developing unit to move along the straight line.

Abstract: A developing unit includes a container in which a developer is accumulated inside, a developer filling opening which is formed on the container and a gripper which is fixed on an outer surface of the container so as to cover the developer filling opening.

Abstract: An image forming apparatus includes a drive source which is detachably mountable to a main body, wherein the main body includes a gear which can be driven rotatable by the drive source and which includes a coupling protrusion on a radial line. A process cartridge includes a photosensitive drum, a process unit which acts upon the photosensitive drum, and a coupling hole which is provided at an end part of a radial direction of the photosensitive drum. The photosensitive drum set in the main body rotates by receiving a drive force from the drive source via the coupling protrusion and the coupling hole when a cover member of the main body is closed, and the coupling protrusion and the coupling hole are fit together.

Abstract: An image forming device includes a device frame, a developing unit which is inserted into the device frame in a prescribed inserting direction, two terminals which are provided in the device frame, a metal conduction member which is provided in the developing unit and makes contact with at least one of the terminals, and a detecting unit which detects a presence or an absence of continuity between the terminals.

Abstract: An image forming device includes an electrostatic latent image carrier on which an electrostatic latent image is formed, a main frame which supports the electrostatic latent image carrier, and a developing unit which is inserted removably in the main frame. The developing unit includes a developer carrier which supplies a developer to the electrostatic latent image carrier and a replenish chamber which replenishes the developer to the developer carrier.

Abstract: An image forming device includes an electrostatic latent image carrier which carries a latent image, a main frame which supports the latent image carrier, and a developing unit which is inserted removably in the main frame. The developing unit includes a developer carrier which supplies a developer to the electrostatic latent image carrier and a replenish chamber which replenishes the developer to the developer carrier. The image forming device also includes an operating unit to press or not press the developing unit by sliding a pressing body provided on the main frame, a manual operation unit provided on the operating unit and set at an operational position and a standby position, and a protrusion formed along an operational direction of the manual operation unit on a side surface of the developing unit located to the manual operation unit when the developing unit is inserted.

Abstract: A developing unit includes an impressed member to which a voltage is impressed, a contact member which is made of a metal wire rod and urged by an elastic force to make contact with the impressed member and to be connected electrically with the impressed member, and a supporting plate member which supports the contact member at an inner surface side and exposes a part of the contact member as a contact part for an outer connection to an outer surface from an attaching hole.

Abstract: An image forming device includes an electrostatic latent image carrier on which an electrostatic latent image is formed, a main frame which supports the electrostatic latent image carrier and a developing unit. The developing unit includes a developer carrier for supplying a developer to the electrostatic latent image carrier and a replenish chamber for replenishing the developer in the developer carrier. The developing unit is inserted removably in the main frame. A pressing mechanism is provided on the main frame and presses a bottom surface of the developing unit in a pressing direction along a straight line orthogonal to a rotational center shaft of the electrostatic latent image carrier and a rotational center shaft of the developer carrier. The developing unit includes a guide member which is fit into one end part of the rotational shaft of the electrostatic latent image carrier and guides the developing unit to move along the straight line.