A developer supply cartridge detachably mountable to an image forming apparatus, includes: a developer accommodator accommodating a developer; a discharging opening discharging the developer accommodated in the accommodator to a developer receiving opening of a developer receiving cartridge developi
A developer supply cartridge detachably mountable to an image forming apparatus, includes: a developer accommodator accommodating a developer; a discharging opening discharging the developer accommodated in the accommodator to a developer receiving opening of a developer receiving cartridge developing an electrostatic image formed on an image bearing member with the developer, and being detachably mountable to the image forming apparatus; a shutter movable between an opening position opening the discharging opening and a closing position closing the discharging opening; an engager engaging the developer receiving cartridge to receive, from the developer receiving cartridge, a force for moving the shutter from the closing to the opening position, in interrelation with a relative movement between the developer supply cartridge and the developer receiving cartridge toward each other in a mounting-and-demounting direction of the developer supply cartridge relative to the image forming apparatus.
대표청구항▼
What is claimed is: 1. A developer supply cartridge, detachably insertable into an image forming apparatus in a direction, for supplying developer to a developer receiving cartridge which is detachably insertable into the image forming apparatus in the direction and which includes first and second
What is claimed is: 1. A developer supply cartridge, detachably insertable into an image forming apparatus in a direction, for supplying developer to a developer receiving cartridge which is detachably insertable into the image forming apparatus in the direction and which includes first and second engaging members arranged in the direction, said developer supply cartridge comprising: a developer container configured and positioned to contain the developer, said developer container including a discharge opening configured and positioned to permit discharge of the developer toward the developer receiving cartridge, a shutter configured and positioned to open and close said discharge opening by rotation thereof about a rotation center, wherein said shutter includes: a plurality of sets of an opening portion configured to open said discharge opening and a closing portion configured to close said discharge opening, which are alternately disposed in a circumferential direction about the rotation center of said shutter; and a plurality of engaging portions which are disposed between adjacent ones of said opening portion and said closing portion respectively, and each of which is engageable with either one of the first and second engaging members to rotate said shutter so as to open and close said discharge opening irrespective of the rotational direction of said shutter with relative movement between said developer supply cartridge and the developer receiving cartridge in the image forming apparatus. 2. A developer supply cartridge according to claim 1, wherein when the developer receiving cartridge is set into the image forming apparatus, said shutter is rotated in a first direction so as to open by one of said opening portions in interrelation with inserting of said developer supply cartridge into the image forming apparatus, and wherein when said developer supply cartridge is set into the image forming apparatus, said shutter is rotated in a second direction, opposite to the first direction, so as to open by one of said opening portions in interrelation with inserting of the developer receiving cartridge into the image forming apparatus. 3. A developer supply cartridge according to claim 1, wherein when said developer supply cartridge and the developer receiving cartridge are set into the image forming apparatus, said shutter is rotated in a first direction so as to close one of said closing portions in interrelation with detaching of said developer supply cartridge from the image forming apparatus, and wherein when said developer supply cartridge and the developer receiving cartridge are set into the image forming apparatus, said shutter is rotated in a second direction, opposite to the first direction, to close one of said closing portions in interrelation with detaching of the developer receiving cartridge from the image forming apparatus. 4. A developer supply cartridge according to claim 2, wherein when said developer supply cartridge and the developer receiving cartridge are set into the image forming apparatus, said shutter is rotated in a first direction so as to close one of said closing portions in interrelation with detaching of said developer supply cartridge from the image forming apparatus, and wherein when said developer supply cartridge and the developer receiving cartridge are set into the image forming apparatus, said shutter is rotated in a second direction, opposite to the first direction, to close one of said closing portions in interrelation with detaching of the developer receiving cartridge from the image forming apparatus. 5. A developer supply cartridge according to 1, wherein the number of said sets is two, and the number of said engaging portions is four. 6. A developer supply cartridge according to 1, wherein said shutter includes a plurality of leaf like portions as said opening portions and said closing portions, and a plurality of recesses which are disposed between adjacent ones of said leaf like portions respectively as said engaging portions.
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이 특허에 인용된 특허 (14)
Tatsumi Kenzo,JPX, Detachable toner supply and processing assembly for an image forming apparatus and having a shutter mechanism for toner.
Okiyama Yoshitatsu,JPX ; Yabuki Makoto,JPX ; Ito Junichi,JPX, Image forming apparatus having a plurality of image forming stations including devices and receiving sections for detachably receiving the devices.
Kawashima Masato (Kawasaki JPX) Watanabe Mamoru (Fuchu JPX) Nagakura Masanao (Akigawa JPX) Nanba Hideyuki (Kawasaki JPX), Process and apparatus for replacing the carrier portion of a developing agent having toner used in an image-forming appa.
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