Ink cartridge having waste ink absorbing function
First Claim
1. An ink cartridge with a waste ink absorbing function, comprising an ink bag with ink stored therein, a waste ink absorbing member for absorbing waste ink, and a cartridge case storing therein the ink bag and waste ink absorbing member, said ink cartridge including a division room formed in an interior portion of said cartridge case for storing said waste ink absorbing member therein, and a plastic film forming at least a portion of said division room,said cartridge case including first and second case sections which combine together to thereby define the storage portions of said cartridge case respectively for storing said ink bag and said waste ink absorbing member, wherein said first case section includes a rectangular-shaped case bottom plate portion and a case outer frame portion formed in a peripheral edge of said case bottom plate portion, said second case section includes a rectangular-shaped case cover portion and a case inner frame portion formed in a peripheral edge of said case cover portion, and said case inner frame portion is smaller in width than said case outer frame portion and is formed in a size which allows said case inner frame portion to be inserted into said case outer frame portion, and also wherein said waste ink absorbing member is stored within a rectangular-shaped recess to be defined by said case cover portion and said case inner frame portion of said second case section, and the opening of said recess is closed by said plastic film to thereby define said division room.
1 Assignment
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Accused Products
Abstract
An ink cartridge 2 with a waste ink absorbing function includes a division room 70 formed in the interior portion of a cartridge case 30 for storing a waste ink absorbing member 20, and a plastic film 60 forming at least part of the division room 70. By cutting or peeling off the plastic film 60, the waste ink absorbing member 20 stored within can be replaced, which simplifies the replacement of the waste ink absorbing member 20. After replacement, the plastic film 60 may be mounted onto the cartridge case 30. Use of the plastic film is economical when compared with a structure in which a plastic plate is mounted onto a cartridge case. Also, the ink cartridge 2 can be reduced in size and weight as a whole.
89 Citations
21 Claims
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1. An ink cartridge with a waste ink absorbing function, comprising an ink bag with ink stored therein, a waste ink absorbing member for absorbing waste ink, and a cartridge case storing therein the ink bag and waste ink absorbing member, said ink cartridge including a division room formed in an interior portion of said cartridge case for storing said waste ink absorbing member therein, and a plastic film forming at least a portion of said division room,
said cartridge case including first and second case sections which combine together to thereby define the storage portions of said cartridge case respectively for storing said ink bag and said waste ink absorbing member, wherein said first case section includes a rectangular-shaped case bottom plate portion and a case outer frame portion formed in a peripheral edge of said case bottom plate portion, said second case section includes a rectangular-shaped case cover portion and a case inner frame portion formed in a peripheral edge of said case cover portion, and said case inner frame portion is smaller in width than said case outer frame portion and is formed in a size which allows said case inner frame portion to be inserted into said case outer frame portion, and also wherein said waste ink absorbing member is stored within a rectangular-shaped recess to be defined by said case cover portion and said case inner frame portion of said second case section, and the opening of said recess is closed by said plastic film to thereby define said division room.
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12. An ink cartridge with a waste ink absorbing function, comprising an ink bag with ink stored therein, a waste ink absorbing member for absorbing waste ink, and a cartridge case storing therein the ink bag and waste ink absorbing member,
said ink cartridge including a division room formed in an interior portion of said cartridge case for storing said waste ink absorbing member therein, and a plastic film forming at least a portion of said division room, said cartridge case being formed of plastics, wherein said plastic film includes first and second film layers, and said first film layer is formed of the same material as said cartridge case and is thermally welded to said cartridge case.
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15. An ink cartridge, comprising:
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a fresh ink compartment having a bottom plate portion and a first frame portion formed in a peripheral edge of the bottom plate portion;
an ink bag with fresh ink stored in the fresh ink compartment;
a waste ink compartment formed by a portion of interior walls of the ink cartridge and by a flexible plastic film, the plastic film dividing the fresh and waste ink compartments, the waste ink compartment having a cover portion and a second frame portion formed in a peripheral edge of the cover portion; and
a waste ink absorbing member stored in the waste ink compartment. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification