US 2015/0177645 A1 · Development Device

Abstract

A development device includes a first frame and a second frame. The second frame is configured to be combined with the first frame by fixing first, second and third walls of the first frame to the second frame. The first and second walls are disposed opposite to each other, and the third wall is configured to connect the first and second walls. An opening is formed by the combined first and second frames. The first frame includes first and second engageable portions, and the second frame includes third and fourth engageable portions, such that engagement of the first and second engageable portions with the third and fourth engageable portions brings the first and second frames into alignment. The first and second engageable portions are disposed between the first wall and the second wall.

Claims9

Dependent claims

A development cartridge comprising:

a development roller extending in a first direction;
a first frame including:
a first wall;
a second wall separated from the first wall in the first direction;
a first protrusion protruding from the first wall toward the second wall;
a second protrusion protruding from the second wall toward the first wall;
a first projection projecting, in a second direction different from the first direction, from a protruding end portion of the first protrusion;
and
a second projection projecting, in the second direction, from a protruding end portion of the second protrusion;
and
a second frame having a first hole positioned to engage the first projection, and a second hole positioned to engage the second projection.

8 more elements

A development cartridge comprising:

a development roller extending in a first direction;
a doctor blade extending in the first direction, the doctor blade being configured to regulate a thickness of developer on the development roller;
a first frame including:
a first wall including a first mount portion, the first mount portion being fixed to the doctor blade;
a second wall separated from the first wall in the first direction, the second wall including a second mount portion, the second mount portion being fixed to the doctor blade;
a first protrusion protruding from the first wall toward the second wall;
a second protrusion protruding from the second wall toward the first wall;
a first projection projecting, in a second direction different from the first direction, from the first protrusion;
and
a second projection projecting, in the second direction, from the second protrusion;
and
a second frame having a first hole positioned to engage the first projection, and a second hole positioned to engage the second projection,
wherein the first projection and the second projection are positioned between the first mount portion and the second mount portion in the first direction.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/639,261Filed 5 Mar 2015

Priority

JP 2011-18687930 Aug 2011

Published

25 Jun 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

G03G 15/0812
On a donor element, e.g. belt, roller: characterised by the developer regulating means, e.g. structure of doctor blade
G03G 15/0865
Arrangements for preparing, mixing, supplying or dispensing developer: arrangements for supplying new developer
G03G 15/0894
Using a solid developer, e.g. powder developer: reconditioning of the developer unit, i.e. reusing or recycling parts of the unit, e.g. resealing…
G03G 15/0896
Using a solid developer, e.g. powder developer: arrangements or disposition of the complete developer unit or parts thereof not provided for by…

Development Device

Life of this patent

Development Device

Life of this patent

Abstract

Claims9