Back to results
US 8,027,628 B2Granted
Cleaning device, process cartridge, and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsKazuhiko Watanabe, Masahiko Shakuto, Osamu Naruse, Hidetosi Yano
Life of this patent
Estimating the term…
Abstract
A blade, including: a cut surface provided by obliquely cutting a part of a tip surface to set an angle forming a tip ridge portion of the blade as an obtuse angle, wherein the tip ridge portion is configured to be pressed to a surface to be cleaned.
Claims20
A cleaning device that cleans a toner on an image carrier, the cleaning device comprising:
- a blade;
- and
- a support member that supports the blade,
- wherein the blade includes:
- a top surface;
- a bottom surface substantially parallel to the top surface;
- a tip surface disposed perpendicular to the top and bottom surfaces and connected to the bottom surface;
- and
- a cut surface having two ends that connect the top surface and the tip surface, the cut surface provided by obliquely cutting a part of the top surface and the tip surface to set an angle forming a tip ridge portion of the blade as an obtuse angle relative to the top surface, the tip ridge portion being formed at one end of the cut surface at an intersection with the top surface, the cut surface being less than an entirety of the tip surface, and
- wherein the support member is configured to support the blade such that only the tip ridge portion of the cut surface presses a surface of the image carrier.
7 more elements
A blade, comprising:
- a cut surface provided by obliquely cutting a part of a tip surface to set an angle forming a tip ridge portion of the blade as an obtuse angle, the cut surface being less than an entirety of the tip surface,
- wherein the tip ridge portion is configured to be pressed to a surface to be cleaned, and
- wherein the obtuse angle is set by removing one or more sections of the blade with total dimensions of 100 micrometers in a length direction and 200 micrometers in a thickness direction.
A cleaning device that cleans a toner on an image carrier, the cleaning device comprising:
- a blade;
- and
- a support member that supports the blade,
- wherein the blade includes:
- a top surface;
- a bottom surface substantially parallel to the top surface;
- and
- a slanted surface provided at only one corner area of the blade, said slanted surface having two ends and forming a tip ridge portion of the blade at one end at an intersection of the top surface and the slanted surface and having an obtuse angle relative to the top surface, the slanted surface indirectly connecting the top surface and the bottom surface, and
- wherein the support member is configured to support the blade such that only the tip ridge portion presses a surface of the image carrier.
6 more elements
Dependencies are inferred from the claim text.