JPH0258255U

JPH0258255U -

Info

Publication number: JPH0258255U
Application number: JP13553888U
Authority: JP
Priority date: 1988-10-19
Filing date: 1988-10-19
Publication date: 1990-04-26
Anticipated expiration: 2003-10-19
Also published as: JPH0750759Y2

Description

[Brief explanation of the drawing]

第１図は本考案の現像装置の断面図、第２図は
、第１図の―線に沿う断面図、第３図は第２
図の―線に沿う断面図、第４図は本考案の現
像装置の断面図、第５図は第４図のトリミングブ
レードの斜視図、第６図は第４図のＥ部分の拡大
図、第７図は従来の現像装置の断面図、第８図は
第７図の―線に沿う断面図、第９図は従来の
現像装置の断面図、第１０図は、第９図の従来の
トリミングブレードの平面図、第１１図は第１０
図のトリミングブレードの側面図である。 Fig. 1 is a sectional view of the developing device of the present invention, Fig. 2 is a sectional view taken along the line - in Fig. 1, and Fig. 3 is a sectional view of the developing device of the present invention.
4 is a sectional view of the developing device of the present invention, FIG. 5 is a perspective view of the trimming blade in FIG. 4, and FIG. 6 is an enlarged view of part E in FIG. 4. 7 is a sectional view of a conventional developing device, FIG. 8 is a sectional view taken along the line - in FIG. 7, FIG. 9 is a sectional view of a conventional developing device, and FIG. A plan view of the trimming blade, Figure 11 is the 10th
FIG. 3 is a side view of the trimming blade shown in the figure.

Claims

[Claims for Utility Model Registration] (1) In a developing device comprising a developing section having a developing roll, a toner hopper section having a toner agitator, and a partition member provided between the developing section and the toner hopper section, the partition The member has an upper apex with a cutout at the top and a lower apex with a cutout at the bottom, and H b is the distance from the horizontal plane passing through the center of the developing roll to the upper apex, and H _b is the distance from the horizontal plane to the lower apex. H _f ,
A developing device characterized in that, where _Ha is the distance from the horizontal plane to the toner agitator axis, there is a relationship of Ha _≧ H _b ≧H _f . (2) The toner hopper is a cylindrical container, the major axis is slightly shorter than the length inside the container, the minor axis is slightly shorter than the diameter inside the container, and the toner agitator is elliptical and has an opening inside. 2. The developing device according to claim 1, wherein the developing device is arranged so that the surface of the toner agitator during rotation is in contact with the inner surface of the container, or the gap between the surface of the toner agitator and the inner surface of the container during rotation is minimized. (3) Tilt the holding end of the trimming blade at 30° to 120° so that it can be attached and detached in the axial direction of the developing roll.
A developing device characterized by being bent.