Developer container, developing apparatus, process cartridge, apparatus main body, and image forming apparatus
First Claim
1. A developing apparatus comprising:
- a developer bearing member for bearing developer;
a frame housing the developer;
a stirring member including a sheet-like stirring portion and a rotary shaft to which the stirring portion is attached; and
a first electrode and a second electrode which are used to detect a signal related to an amount of the developer housed in the frame and which are arranged with an interval therebetween, the first electrode and the second electrode being arranged along a wall surface of the frame,wherein an area between the first electrode and the second electrode is positioned below the rotary shaft of the stirring member, and, as seen in a gravitation direction when the developing apparatus is mounted in an image forming apparatus, a trajectory of rotation around the rotary shaft by the stirring member overlaps the area, the first electrode, and the second electrode.
0 Assignments
0 Petitions
Accused Products
Abstract
A developer container includes: a housing chamber 147 which includes an opening 145 and which houses developer; a stirring member 160 which includes a sheet-like stirring portion 160b and a rotary shaft 160a to which the stirring portion 160b is attached; and a first electrode 143 and a second electrode 144 which are used to detect an amount of the developer and which are arranged with an interval therebetween, wherein an area X1 between the first electrode 143 and the second electrode 144 in the housing chamber 147 is positioned below the rotary shaft 160a of the stirring member 160, and the sheet-like stirring portion 160b comes into contact with the area X1 due to rotation of the stirring member 160.
34 Citations
18 Claims
-
1. A developing apparatus comprising:
-
a developer bearing member for bearing developer; a frame housing the developer; a stirring member including a sheet-like stirring portion and a rotary shaft to which the stirring portion is attached; and a first electrode and a second electrode which are used to detect a signal related to an amount of the developer housed in the frame and which are arranged with an interval therebetween, the first electrode and the second electrode being arranged along a wall surface of the frame, wherein an area between the first electrode and the second electrode is positioned below the rotary shaft of the stirring member, and, as seen in a gravitation direction when the developing apparatus is mounted in an image forming apparatus, a trajectory of rotation around the rotary shaft by the stirring member overlaps the area, the first electrode, and the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification