Abstract:
A developer storage container includes a main body portion and a rotary cylindrical body. The main body portion has a cylindrical inner peripheral surface and a pair of main body side end surfaces. The rotary cylindrical body has a side surface having a cylindrical shape, a pair of rotary body end surfaces and a storage space configured to store developer. A slit extending is formed on the side surface of the rotary cylindrical body to allow communication between the internal space and the storage space. The rotary cylindrical body is so arranged in the internal space that a predetermined clearance is defined between the side surface and the inner peripheral surface of the main body portion. A developer discharge port is opened on the main body portion.
Abstract:
Provided is a liquid ejection apparatus capable of cooling a control board of a liquid ejection head without cooling a liquid supply path. Ae liquid ejection unit ejects ink onto paper. Ae control board controls the operation of the liquid ejection unit. Ae head housing covers and houses the control board inside thereof. Ae liquid supply path supplies ink to the liquid ejection head. Ae main body housing covers and houses a portion of the liquid ejection head except for the liquid ejection unit. A fan causes air to flow between the main body housing and the head housing. The liquid supply path is inserted from the outside to the inside of the main body housing in the vicinity of the liquid ejection head, and is connected to the liquid ejection head.
Abstract:
A liquid supply unit includes a first chamber, a second chamber, an opening/closing member, a biasing member, a pressing member and a flexible film member. The first chamber communicates with a liquid storage container, and the second chamber communicates with a liquid injection head. The opening/closing member changes a posture between a closing posture for closing a communication opening and an opening posture for opening it. The biasing member biases the opening/closing member in a direction toward the closing posture. The pressing member presses the opening/closing member in a direction toward the opening posture. The flexible film member is displaced based on a negative pressure generated in the second chamber. When a pressure receiving portion of the pressing member receives the displacement force from the flexible film member, the pressing member rotates about a pivot point and presses the opening/closing member against a biasing force of the biasing member.
Abstract:
A first retractable member is provided so as to be freely retractable with respect to the first location hole of a turning member in a state where the first retractable member makes contact with a fitting portion. The first retractable member turns the turning member based on a contact force with the fitting portion corresponding to advance and retreat with respect to the first location hole. The first retractable member moves a fourth engagement portion as the turning member is turned so as to change an engagement position with a third engagement portion, and thereby makes a head unit swing with the engagement position of a first engagement portion and a second engagement portion serving as a fulcrum point so as to adjust the position of the head unit in the fitting portion.
Abstract:
A liquid supply unit includes a first chamber, a second chamber, a wall portion, an opening/closing member, a flexible film member and a transmitting member. The wall portion includes a communication opening allowing communication between the first chamber and the second chamber. The opening/closing member changes a posture between a closing posture for closing the communication opening from the second chamber side and an opening posture. The flexible film member is displaced based on a pressure change of the second chamber. The transmitting member transmits a displacement force to the opening/closing member to be the opening posture when the second chamber is set to a negative pressure exceeding a predetermined threshold value, and transmits the displacement force to the opening/closing member to be the closing posture according to a displacement of the flexible film member when the second chamber is pressurized.
Abstract:
An image forming apparatus includes a housing in which a developing device is disposed, a cover member attached to the housing, a developer storage container to be detachably attached to the developing device, and a sensor unit. The developer storage container includes a container body having a storage space for storing a developer and a developer discharge port, and a moving wall configured to move in the container body. The sensor unit is arranged at a detection position where a detection sensor faces a specific area located above the developer discharge port on an outer peripheral surface of the container body when the cover member is in a closing posture, and arranged at a detection disable position where the detection sensor is distant from the specific area when the cover member is in an opening posture.
Abstract:
A toner container includes a container body, a tubular body, and a screw feeder. The tubular body forms a toner conveyance path communicating with an inside of the container body. The screw feeder feeds toner in the container body to the toner conveyance path by being rotationally driven inside the container body. The screw feeder pushes toner that has arrived inside the toner conveyance path further along the toner conveyance path by feeding pressure of succeeding toner.
Abstract:
A developer container includes a container main body having an internal space and a developer discharge port; a movable wall moving in the internal space toward the developer discharge port; a detection surface which is a part of an inner peripheral surface that divides a storage space of a developer in the container main body and which becomes a detection region of a first detection sensor which detects the developer in the storage space; and a rotating body arranged in the storage space and capable of rotating around a rotary shaft along the first direction. The rotating body is mounted with a cleaning member which cleans the detection surface, a stirring member which stirs a developer in the storage space, and a detection target member to be a detection target of a second detection sensor which detects presence of the container main body.
Abstract:
A toner case includes a case main body, a feeding mechanism, a displacement member, and an elastic member. The case main body stores toner. A ventilation port is formed in the case main body. The feeding mechanism feeds the toner to outside the case main body. The displacement member includes a seal portion and is configured to be displaced between a closing position and an opening position. When the displacement member is at the closing position, the seal portion closes the ventilation port, and when the displacement member is at the opening position, the seal portion opens at least a part of the ventilation port. The elastic member holds the displacement member at the closing position by applying an elastic force to the displacement member.
Abstract:
A toner case includes a case main body, a rotating member, a transmitting member and a cover. The case main body contains a toner. The rotating member is disposed in the case main body and is rotatable around a rotation axis. The transmitting member rotates along an outer face of a side wall of the case main body on one side in a direction of the rotation axis so as to transmit a rotation to the rotating member. The cover covers at least a portion of the transmitting member. The transmitting member has a movable part which moves as the transmitting member rotates. The cover has a hole part through which the movable part is exposed.