摘要:
In a developing device included in an electrophotographic image forming apparatus, a device for replenishing toner to the developing device has a toner container having a hollow cylindrical body. The body is formed with a toner outlet at the center of one end thereof. A holder arrangement holds the container such that the toner can be delivered to a toner inlet portion included in the developing device. A drive mechanism causes the container to rotate about its own axis. The holder arrangement is formed with an opening for feeding the toner flowing out via the toner outlet to the toner inlet portion. The opening is covered with an elastic member having a holed portion. The device is capable of replenishing a predetermined amount of toner to the developing device at all times.
摘要:
A toner bottle (38) has projections (38c, 38c') on its bottom surface. The projections (38c, 38c') extend in the axial direction but are spaced away from the central-axis line of the toner bottle (38). The projections (38c, 38c') are engaged with convex portions (62b, 62b') formed in a joint (62) of a drive portion (60). When the drive portion (60) starts rotating, the torque is transferred to the toner bottle (38) via the projections (38c, 38c') and the convex portions (62b, 62b'). Since the torque is transferred from the bottom side of the toner bottle (38), the toner bottle (38) can be attached to or detached from a body of an image forming apparatus in a direction of the central-axis line. Toner discharged from the toner bottle (38) is introduced into a process cartridge through an opening portion (48) of a toner hopper portion (40) and a toner introducing cover (52). A shutter member (88) is disposed in the toner introducing cover (52). The shutter member (88) consists of a flexible elastic member (90) and a holding member (92) for holding the elastic member (90). The shutter member (88) intersects with the opening plane of a toner supplying port. Guiding portions for bending and guiding the elastic member (90) along the toner supplying port are also disposed in the toner introducing cover (52).
摘要:
A toner bottle has a bottle body (1) containing toner and a cap (5) closing an opening portion (3) formed in the bottle body (1), and toner is supplied through the opening portion (3). A plateshaped toner scraping member (20) extending into the opening portion (3) and having elasticity is provided on the back surface of the cap (5) in the diameter direction of the cap (5). Also, the outer end of the toner scraping member (20) is positioned inside of the bottle body (1) beyond the opening portion (3) even when the cap (5) is in its cap-opened position. If the toner bottle is constructed in this way, the toner on the opening portion (3) will be scraped by the toner scraping member (20) and toner condensation can be reliably prevented at the opening portion (3) when toner is supplied from the bottle body (1) by rotation of the toner bottle.
摘要:
A toner cartridge (1000) that is attached to a development unit of an image forming apparatus in order to supply toner to the development unit comprises a toner bottle (100) containing toner, a lid member (200) fitted on a toner outlet (114d) of the toner bottle (100), and an armoring member (300) in which the toner bottle (100) is housed and to which the lid member (200) is attached. The lid member (200) is provided with a toner supply mechanism for supplying the toner contained in the toner bottle (100) to the development unit when the toner cartridge (1000) is attached to the development unit of the image forming apparatus. In the toner cartridge (1000), both of or one of the lid member (200) and the armoring member (300) is shaped quadrangularly in external appearance. The armoring member (300) and the toner bottle (100) are individually constructed so that the toner cartridge (1000) has a double construction comprising the armoring member (300) and the toner bottle (100).
摘要:
A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion. As a result, the toner is discharged to the outside via the mouth portion smoothly.
摘要:
A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion. As a result, the toner is discharged to the outside via the mouth portion smoothly.
摘要:
A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, includes a shoulder portion adjoining a first end of a hollow body. The body is formed with a spiral guide for guiding a developer stored in the developer container. The shoulder portion forms a wall and includes an engaging portion engageable with driver that causes the body to rotate. The engaging portion includes a lug protruding from the shoulder portion which allows a characteristic of toner to be identified. The engaging portion has an outside surface of a guide portion that guides a developer stored in the developer container. Two engaging portions may be angularly spaced from each other by 180 degrees. The developer container also includes a discharge mouth, which adjoins the first end of the body, which is smaller in diameter than the shoulder portion, and which includes an annular collar protruding outwardly, and a positioning portion positioned on a holder for the developer container. The positioning portion includes a lug protruding from an outside surface of the body. The holder for the developer container includes a hitting member which hits against the outside surface when the body is caused to rotate. A plurality of lugs are formed on an outside circumferential surface of the collar of the discharge mouth.
摘要:
A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion. As a result, the toner is discharged to the outside via the mouth portion smoothly.
摘要:
A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferential wall of the bottle which is contiguous with the raised portion is also raised toward the axis of the bottle about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted to a bottle holder, which is included in the replenishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion. As a result, the toner is discharged to the outside via the mouth portion smoothly.
摘要:
A developer replenishing device for replenishing a developing device with a developer, and a developer container for use therewith. The developer container, or toner bottle, has a mouth portion at one end thereof which is smaller in diameter than a hollow cylindrical main body. At the end of the bottle provided with the mouth portion, a shoulder has the inner periphery thereof partly raised to the edge of the mouth portion to form a raised portion for scooping up a toner. In addition, a part of the inner periphery of the circumferental wall of the bottle, which is contiguous with the raised portion, is also raised toward the axis of the bottle, about which the bottle is rotatable, thereby forming another raised portion. When the bottle is mounted on a bottle holder, which is included in the replienishing device, substantially horizontally with the mouth portion oriented sideways, the bottle is rotated to raise the toner from the bottom of the main body to the mouth portion. As a result, the toner is discharged to the outside via the mouth portion smoothly.