Electrophotography – Image formation – Development
Patent
1999-11-23
2000-11-21
Chen, Sophia S.
Electrophotography
Image formation
Development
141364, 222DIG1, 399106, G03G 1506
Patent
active
061514721
ABSTRACT:
A toner cartridge includes an outer pipe, inner pipe inserted into the outer pipe, and cap fitted over the inner pipe. The outer pipe and inner pipe are of a long, hollow cylinder shape and are formed with a plurality of first and second openings, respectively, therein aligned longitudinally thereof. The inner pipe has at one end thereof a toner-filling opening and an annular flange eccentric with respect to the hollow cylinder, and at the other end thereof a knob that closes the longitudinal end of the hollow cylinder and abuts the outer pipe. The first openings are not aligned with the second openings when the inner pipe is at a first rotational position and are aligned when the inner pipe is at a second rotational position. A sealing member is mounted to the inner pipe encircling the second openings and has third openings aligned with the second openings. The sealing member not only seals the gap between the inner pipe and the outer pipe but also holds the inner pipe eccentric with respect to the outer pipe. The outer pipe has at least one flange which radially outwardly extends from the outer pipe and longitudinally extends along the outer pipe. The flange has a plurality of ribs on one side thereof. The toner filling-opening has the same diameter as that of the hollow cylinder.
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Chen Sophia S.
Oki Data Corporation
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