摘要:
A developing device to develop with two-component developer an electrostatic latent image includes a developer bearer to carry thereon developer supplied to the latent image bearer, a first conveyance channel disposed adjacent to the developer bearer, a second conveyance channel disposed adjacent to the first conveyance channel and farther from the developer bearer than the first conveyance channel, a first conveying member disposed in the first conveyance channel to agitate and transport developer supplied to the developer bearer, a second conveying member including a spiral blade winding around a shaft to transport developer in the second conveyance channel in a predetermined developer conveyance direction, and a collected-developer guide to guide a part of developer that leaves the developer bearer to the second conveyance channel beyond the first conveyance channel.
摘要:
A developing device to develop with two-component developer an electrostatic latent image includes a developer bearer to carry thereon developer supplied to the latent image bearer, a first conveyance channel disposed adjacent to the developer bearer, a second conveyance channel disposed adjacent to the first conveyance channel and farther from the developer bearer than the first conveyance channel, a first conveying member disposed in the first conveyance channel to agitate and transport developer supplied to the developer bearer, a second conveying member including a spiral blade winding around a shaft to transport developer in the second conveyance channel in a predetermined developer conveyance direction, and a collected-developer guide to guide a part of developer that leaves the developer bearer to the second conveyance channel beyond the first conveyance channel.
摘要:
Developing devices, process cartridges and image-forming apparatuses, having a chamber for conveying recovered developer on the top of another chamber for conveying supplying developer, where the developer is conveyed by screws inside the chambers respectively, when mixing and conveying the developing agent, a shielding member which separates the chambers, a guide section is provided in the shielding member to guide a developing agent which has left a developing roller toward the screw in the upper chamber, and a third communication section is provided next to the guide section, at the back of where the guided developer contacts the screw wings in the upper chamber, and the third communication section communicates the chambers with each other, and the third communication section is provided from center to downstream in the conveyance direction of the developer by the screw upper.
摘要:
A development device includes a development casing for containing two-component developer, a developer bearer, a developer regulator to adjust an amount of developer carried on the developer bearer, a first developer conveyance member to supply developer to the developer bearer, a second developer conveyance member to transport axially developer separated from the developer bearer, first and second conveyance channels divided by a partition, in which the first and second developer conveyance members are respectively provided, and a removable sheet member to cover the developer bearer in an area facing the developer regulator, the first and second conveyance channels, and the partition. A first end portion of the sheet member extends from the second conveyance channel outside the development casing through a through hole formed in the development casing, and a second end portion thereof is retained by a retainer at a position outside the developer regulator.
摘要:
A development device includes a developer container, a developer bearer to carry developer to a development range, a partition dividing at least partly the developer container into a supply compartment and a collecting compartment, with an end portion of the partition facing a circumferential surface of the developer bearer, a developer supply member in the supply compartment to supply the developer to the developer bearer, and a developer collecting member in the collecting compartment above the developer supply member, to receive the developer from the developer bearer. An opening is formed in a downstream end portion of the partition in a developer conveyance direction of the developer collecting member to cause the developer to fall to the supply compartment, and a width of the opening in a direction perpendicular to the axial direction increases toward downstream in the developer conveyance direction of the developer collecting member.
摘要:
A development device includes a developer container, a developer bearer to carry developer to a development range, a partition dividing at least partly the developer container into a supply compartment and a collecting compartment, with an end portion of the partition facing a circumferential surface of the developer bearer, a developer supply member in the supply compartment to supply the developer to the developer bearer, and a developer collecting member in the collecting compartment above the developer supply member, to receive the developer from the developer bearer. An opening is formed in a downstream end portion of the partition in a developer conveyance direction of the developer collecting member to cause the developer to fall to the supply compartment, and a width of the opening in a direction perpendicular to the axial direction increases toward downstream in the developer conveyance direction of the developer collecting member.
摘要:
A development device includes a development casing for containing two-component developer, a developer bearer, a developer regulator to adjust an amount of developer carried on the developer bearer, a first developer conveyance member to supply developer to the developer bearer, a second developer conveyance member to transport axially developer separated from the developer bearer, first and second conveyance channels divided by a partition, in which the first and second developer conveyance members are respectively provided, and a removable sheet member to cover the developer bearer in an area facing the developer regulator, the first and second conveyance channels, and the partition. A first end portion of the sheet member extends from the second conveyance channel outside the development casing through a through hole formed in the development casing, and a second end portion thereof is retained by a retainer at a position outside the developer regulator.
摘要:
Developing devices, process cartridges and image-forming apparatuses, having a chamber for conveying recovered developer on the top of another chamber for conveying supplying developer, where the developer is conveyed by screws inside the chambers respectively, when mixing and conveying the developing agent, a shielding member which separates the chambers, a guide section is provided in the shielding member to guide a developing agent which has left a developing roller toward the screw in the upper chamber, and a third communication section is provided next to the guide section, at the back of where the guided developer contacts the screw wings in the upper chamber, and the third communication section communicates the chambers with each other, and the third communication section is provided from center to downstream in the conveyance direction of the developer by the screw upper.
摘要:
A developing device includes a casing to contain developer, a developer bearer disposed in the casing and opposite a latent image bearer in a developing range, at least one developer contact face to which the developer adheres in image formation, and a vibrator to give vibration to the developer contact face in a non-image formation period. The developer bearer is to rotate to supply the developer to the latent image bearer in the developing range.
摘要:
A toner bottle driving device control method includes driving one of multiple toner bottle driving devices connected to a single toner container at a time, detecting abnormality of a toner bottle driving device being driven, determining a first abnormality phase of the toner bottle driving device being driven when a number of times the abnormality is detected exceeds a threshold, inhibiting the toner bottle driving device being in the first abnormality phase from driving until the first abnormality phase is resolved, driving a drivable toner bottle driving device containing a non-empty toner bottle when the toner bottle contained in the toner bottle driving device being driven is determined as empty, determining that the multiple toner bottle driving devices are in a second abnormality phase when each of the multiple toner bottle driving devices is determined as being in the first abnormality phase, and inhibiting image formation.