EP0581199A2
Expired / Lapsed
EP
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Toner pack and development device for use in an electrophotographic apparatus
Assignee: Toshiba Corp
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Filing: 1993-07-22
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Granted: —
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Expires: 2013-07-22
Abstract
Abstract A toner pack for use in an electrophotographic apparatus is formed of a polypropylene resin containing 30 to 50 wt% calcium carbonate filler. This resin has a high deformability, and generates a small amount of heat at the time of incineration thereof. Thus, the used toner pack can be disposed of together with flammable products made of paper and/or wood. Further, at the time of disposal, it is possible to fold the used toner pack to reduce its size.
Inventors
- 👤 Michihisa C/O Intellectual Property Div. Iguchi
- 👤 Hiroshi c/o Intellectual Property Div. Hashizume
- 👤 Seiji C/O Intellectual Property Div. Arai
- 👤 Yoshiaki c/o Intellectual Property Div. Okano
- 👤 Chinobu C/O Intellectual Property Div. Sakai
- 👤 Hirotaka c/o Intellectual Property Div. Fukuyama
- 👤 Takahito C/O Intellectual Property Div. Kabai
- 👤 Kouichirou c/o Intellectual Property Div. Satou
- 👤 Tetsuya C/O Intellectual Property Div. Nakamura
- 👤 Satoshi C/O Intellectual Property Div. Katagata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 17:51
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0806; G03G15/0817; G03G15/0822; G03G15/0848; G03G15/0849; G03G15/0855; G03G15/0865; G03G15/0874; G03G15/0877; G03G15/0881; G03G15/0882; G03G2221/00; G03G2221/16; G03G2221/1648; Y; Y10; Y10S; Y10S222/00; Y10S222/01
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
19 words
A case for use in an electrophotographic apparatus characterized by being formed of a polyolefin-based resin including mineral filler.
Claim 2
Dependent Claim
19 words
A case according to claim 1, characterized in that said mineral filler is included not less than 30 wt%.
Claim 3
Dependent Claim
19 words
A case according to claim 1, characterized in that said mineral filler is included not more than 50 wt%.
Claim 4
Dependent Claim
15 words
A case according to claim 1, characterized in that said mineral filler is calcium carbonate.
Claim 5
Dependent Claim
15 words
A case according to claim 1, characterized in that said mineral filler is magnesium silicate.
Claim 6
Dependent Claim
20 words
A case according to claim 1, characterized in that a thickness of the case is not larger than 1 mm.
Claim 7
Dependent Claim
24 words
A case according to claim 1, characterized in that an inlet for filling the case with toner therethrough is sealed with a flammable sheet.
Claim 8
Dependent Claim
76 words
A toner pack for use in a development device of an electrophotographic apparatus, characterized by comprising: a main body (30) containing toner; a toner outlet (31) formed in one surface of the main body; and a seal sheet (34) adhered to the main body for sealing the toner outlet, an adhesive portion of the seal sheet at the main body being a loop around the toner outlet, the loop having a hexagonal or an elliptical shape.
Claim 9
Dependent Claim
96 words
A toner pack for use in a development device of an electrophotographic apparatus, characterized by comprising: a main body (30) containing toner; a toner outlet (31) formed in one surface of the main body; and a seal sheet (34) adhered to the main body for sealing the toner outlet, any portion of an adhesive portion of the seal sheet at the main body having a width, which is in a direction perpendicular to a direction in which the seal sheet is to be peeled off the main body, smaller than a width of the toner outlet.
Claim 10
Dependent Claim
73 words
A development device for use in an electrophotographic apparatus, characterized by comprising: a housing (21) having a toner holder, and a toner inlet formed in an upper portion of the toner holder; a toner pack (30) having a toner outlet formed in one surface thereof, and a seal sheet adhered to the toner pack for sealing the toner outlet, thereby containing toner therein; and means for urging the toner pack toward the housing.
Claim 11
Dependent Claim
16 words
A device according to claim 10, in which said urging means is provided in said housing.
Claim 12
Dependent Claim
28 words
A container of consumption articles used in an electrophotographic apparatus and detachably mounted to the electrophotographic apparatus, characterized by being formed of a polyolefin-based resin including mineral filler.
Claim 13
Dependent Claim
21 words
A container according to claim 12, characterized by containing toner to be supplied to a development device of the electrophotographic apparatus.
Claim 14
Dependent Claim
21 words
A container according to claim 12, characterized by containing a used toner collected from a development device of the electrophotographic apparatus.
References Cited (Backward Citations)
No citation records indexed.
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