JPS649257U

JPS649257U -

Info

Publication number: JPS649257U
Application number: JP10186887U
Authority: JP
Priority date: 1987-07-03
Filing date: 1987-07-03
Publication date: 1989-01-18

Description

[Brief explanation of drawings]

第１図から第６図は本考案の実施例を示すもの
で、第１図は本考案の第１の実施例を示す断面図
、第２図は開閉弁機構の拡大断面図、第３図は本
考案の第２の実施例を示す断面図、第４図はその
要部の平面図、第５図、第６図は本考案の第３の
実施例の構成及び作用を示す断面作用図、第７図
、第８図は従来例を示す断面図である。１は感光
体、２ａ，２ｂは感光体、４は吸引室、７は吸引
装置、１０ａ，１０ｂはホース。 1 to 6 show embodiments of the present invention. FIG. 1 is a sectional view showing the first embodiment of the invention, FIG. 2 is an enlarged sectional view of the opening/closing valve mechanism, and FIG. is a sectional view showing the second embodiment of the present invention, FIG. 4 is a plan view of the main parts thereof, and FIGS. 5 and 6 are sectional views showing the structure and operation of the third embodiment of the present invention. , FIG. 7, and FIG. 8 are sectional views showing conventional examples. 1 is a photoconductor, 2a and 2b are photoconductors, 4 is a suction chamber, 7 is a suction device, and 10a and 10b are hoses.

Claims

[Scope of utility model registration request]

A plurality of developing machines 2a, 2b are provided so as to be movable in the direction of distance from and near the photoconductor 1, and each developing machine 2a,
Suction chamber 4 that sucks the toner cloud to the outside of 2b
In the electrophotographic copying machine, the suction device 7 is provided with hoses 10a and 10b corresponding to the number of developing machines, and each hose 10a is connected to the suction device 7.
, 10b and the suction chamber 4 are connected to the developing machines 2a, 2.
An electrophotographic copying machine characterized in that the electrophotographic copying machine is connected via a valve mechanism that opens and closes in the moving direction of b and opens when the developing units 2a and 2b move toward the photoreceptor 1 side.