Patent EP0487039A2 successfully refreshed from Google Patents.
EP0487039A2
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EP
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Image formation cartridge
Assignee: Minolta Co Ltd
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Filing: 1991-11-19
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Granted: —
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Expires: 2011-11-19
Abstract
Abstract An image formation cartridge (150) to be mounted in a body (1) of an image forming apparatus. The cartridge (150) is made by integrating a photosensitive member (160), a developing device (172) and a transfer roller (180) in a housing. The housing has a convexly curved portion at a leading portion in respect to a mounting direction, a convexly curved portion at a leading portion in respect to a dismounting direction and a flat portion between the curved portions.
Inventors
- 👤 Hirofumi C/O Minolta Camera K.K. Hasegawa
- 👤 Yoshiyasu Hayakawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 18:46
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/16; G03G21/18; G03G21/1839; G03G21/1842; G03G21/1853; G03G21/1604; G03G21/1623; G03G21/1628; G03G21/1661; G03G2221/00; G03G2221/16; G03G2221/1636; G03G2221/1651; G03G2221/1654; G03G2221/1672; G03G2221/18; G03G2221/1807; G03G2221/183; G03G2221/1846
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
An image formation cartridge comprising means for forming an image on a sheet, the means having a photosensitive member, and a housing for covering the image forming means, which cartridge is mounted in and dismounted from a body of an image forming apparatus, said image formation cartridge characterized in that: the housing has a convexly curved portion at a leading portion in respect to a mounting direction, a convexly curved portion at a leading portion in respect to a dismounting direction and a flat portion between the curved portions.
Claim 2
Dependent Claim
47 words
An image formation cartridge as claimed in claim 1, characterized in that: the mounting leading portion is substantially a half cylinder whose axis is perpendicular to the mounting direction; and the dismounting leading portion is substantially a half cylinder whose axis is perpendicular to the dismounting direction.
Claim 3
Dependent Claim
24 words
An image formation cartridge as claimed in claim 1, characterized in that: the dismounting leading portion is about two to eight centimeters in height.
Claim 4
Dependent Claim
33 words
An image formation cartridge as claimed in claim 1, characterized in that: the dismounting leading portion has a rough portion formed by many grooves extended in a direction perpendicular to the dismounting direction.
Claim 5
Dependent Claim
22 words
An image formation cartridge as claimed in claim 1, characterized in that: the photosensitive member is disposed inside the mounting leading portion.
Claim 6
Dependent Claim
48 words
An image formation cartridge as claimed in claim 5, characterized in that: the housing has a slit extended from the dismounting leading portion to the photosensitive drum substantially in parallel with the flat portion, the slit serving as an optical path used for exposure of the photosensitive drum.
Claim 7
Dependent Claim
28 words
An image formation cartridge as claimed in claim 6, characterized in that: the housing has a sheet path traversing the convexly curved portion at the mounting leading portion.
References Cited (Backward Citations)
No citation records indexed.
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