摘要:
A powder amount detector includes a vibration plate secured to a powder container to contain powder and positioned at a predetermined position in a stationary state, a shaft to rotate inside the powder container, a contact member attached to the shaft, a vibration detector to detect vibration of the vibration plate, and a detection result processor to determine an amount of the powder in the powder container according to a detection result generated by the vibration detector. The contact member is to flip the vibration plate to cause the vibration plate to repeat elastic deformation and reversion to vibrate. The contact member is to exit an area opposed to the vibration plate after the contact member flips the vibration plate by the time the vibration plate returns to the predetermined position.
摘要:
A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
摘要:
A data reader includes a memory board provided to a removable member and a reading member including a reading terminal. The memory board includes a positioning opening, a ground terminal provided to the positioning opening, and a contact terminal. The reading member includes an engagement projection that fits in the positioning opening and is disposed adjacent and parallel to the reading terminal. The engagement projection includes a uniform diameter portion, a tapered portion extending from the uniform diameter portion, and an apparatus-side ground terminal to contact the ground terminal of the memory board when the engagement projection fits in the positioning opening. The apparatus-side ground terminal includes a portion projecting laterally from the uniform diameter portion from an end of the uniform diameter portion toward a reading member base and an extended portion at the end of the uniform diameter portion, covered with the tapered portion.
摘要:
A toner cartridge includes a toner container to store toner and two rotary agitation members to rotate to agitate toner in the toner container. The toner container has two arc-shaped portions adjacent to each other at an inner bottom wall of the toner container. The two rotary agitation members has edges to rotate along the two arc-shaped portions with rotation phases thereof shifted from each other. The two rotary agitation members are placed with rotation trajectories thereof partially overlapping each other.
摘要:
A toner supply device including a casing and a shutter member. The casing includes a toner container for containing toner, a discharge aperture for discharging the toner from the toner container, and an aperture. The shutter member includes an elastic part having at least one bending portion and the elastic part is elastically deformable. The shutter member is insertable into the casing through the aperture to be movable between a closed position at which the discharge aperture is closed and an opened position at which the discharge aperture is opened while the elastic part is kept elastically deformed.
摘要:
A data reader includes a memory board provided to a removable member and a reading member including a reading terminal. The memory board includes a positioning opening, a ground terminal provided to the positioning opening, and a contact terminal. The reading member includes an engagement projection that fits in the positioning opening and is disposed adjacent and parallel to the reading terminal. The engagement projection includes a uniform diameter portion, a tapered portion extending from the uniform diameter portion, and an apparatus-side ground terminal to contact the ground terminal of the memory board when the engagement projection fits in the positioning opening. The apparatus-side ground terminal includes a portion projecting laterally from the uniform diameter portion from an end of the uniform diameter portion toward a reading member base and an extended portion at the end of the uniform diameter portion, covered with the tapered portion.
摘要:
A development device includes a developer bearer to carry the developer to a development range, a magnetic field generator disposed inside the developer bearer for generating magnetic force, a developer regulator for adjusting an amount of the developer, a developer supply compartment disposed adjacent to the developer bearer, separated by a side wall from a portion where the developer bearer is provided, a developer agitator provided in the supply compartment, and a blocker disposed above the side wall of the supply compartment across a supply gap through which the developer moves from the supply compartment. The magnetic field generator has an attraction magnetic pole and a regulation magnetic pole. The blocker prevents the developer blocked by the developer regulator from moving along a magnetic force line of the regulation magnetic force toward the circumferential surface of the developer bearer.