JPS6386671U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a simplified cross-sectional view of a specific example of an electrostatic copying machine as an example of an image generating machine constructed according to the present invention. FIG. 2 is a sectional view showing a process unit of the electrostatic copying machine of FIG. 1. 3 is an exploded perspective view showing a part of the developing device in the process unit of FIG. 2; FIG. Figures 4-A to 4
-C diagrams respectively show a state in which the cover member is in the closed position, a state in which the cover member is in the open position, and a state in which the cover member is in the retracted position in the developing device of the process unit shown in Fig. 2. FIG. 5 is a perspective view showing toner transport means and related elements provided in the process unit of FIG. 2; FIG. 6 is an enlarged sectional view showing a cylindrical member disposed in a developer storage chamber of a developing device of the process unit shown in FIG. 2; FIG. FIG. 7 is a sectional view showing a developer storage chamber and a toner storage chamber of the developing device shown in FIG. 2. FIG. 8 is an exploded perspective view showing an opening/closing mechanism and related elements disposed in connection with the developer storage chamber and toner recovery chamber of FIG. 7; FIG. 9 is a sectional view showing the opening/closing mechanism shown in FIG. 8 and elements related thereto, viewed from above. FIG. 10 is a diagram showing open position locking means and closed position locking means provided with the opening/closing mechanism shown in FIG. 8. FIG. 11 is a sectional view showing a part of a developing device in a modified example of an electrostatic copying machine as an example of an image generating machine. FIG. 12 is a sectional view showing the toner cartridge installed in the toner storage chamber of the developing device shown in FIG. 11, viewed from above. FIG. 13 is a sectional view showing open position locking means and closed position locking means attached to the opening/closing mechanism provided in the toner cartridge shown in FIG. 12. Figure 14 shows
FIG. 3 is a cross-sectional view for explaining a state when a toner cartridge is attached to the developing device main body. 2...Housing, 28...Rotating drum, 34
...Developing device, 36...Cleaning device, 12
9...Developing device main body, 154...Developing chamber, 156
...Developer storage chamber, 158...Toner storage chamber, 1
60... Toner cartridge, 248... Toner transport means, 250... Hollow cylindrical member, 252...
Spiral member, 290... Opening/closing mechanism, 292... Opening/closing member, 344... Toner collection chamber, 346... Container body chamber.

Claims (1)

[Claims for Utility Model Registration] 1. Photoconductor support means having a photoconductor on its surface, a developing device for developing an electrostatic latent image formed on the surface of the photoconductor, and toner remaining on the surface of the photoconductor. an image generating apparatus comprising: a cleaning device for removing toner; a toner transporting means, which is associated with the developing device and the cleaning device, and which guides the toner removed from the surface of the photoreceptor by the action of the cleaning device to the toner collecting chamber of the developing device; Further, an opening/closing mechanism is provided for communicating the toner collection chamber with the toner storage chamber and feeding the toner collected in the toner collection chamber to the toner storage chamber. Image generator. 2. Image generation according to claim 1, wherein the toner storage chamber and the toner recovery chamber are partitioned into a developing device main body, and the opening/closing mechanism is provided on a wall separating the two chambers of the developing device main body. Machine. 3. A utility model registration in which the main body of the developing device is provided with a developer storage chamber in which the start developer is stored, and the developer storage chamber functions as the toner collection chamber after the start developer is discharged. An image generator according to claim 2. 4. The toner storage chamber is divided into the developing device main body,
A toner cartridge is removably attached to the toner storage chamber, and the toner cartridge includes a storage container chamber for storing toner and a toner collection chamber for collecting toner, and a wall separating both chambers of the toner cartridge is provided with a toner cartridge. An image generating machine according to claim 1, which is provided with the opening/closing mechanism. 5. The opening/closing mechanism includes an opening/closing member that is movable between an open position where the toner collection chamber and the toner storage chamber communicate with each other and a closed position where the toner collection chamber and the toner storage chamber are disconnected from each other. An image generating machine according to any one of claims 1 to 4 of the utility model registration claims. 6. The image generating machine according to claim 5, wherein a closed position locking means is attached to the opening/closing mechanism to releasably lock the opening/closing member in the closed position. 7. The image generating machine according to claim 5 or 6, wherein an open position locking means is attached to the opening/closing mechanism to releasably lock the opening/closing member in the open position. 8. The toner transport means includes a hollow cylinder member connecting the cleaning device and the developing device, and a spiral member for transporting toner, the spiral member from the toner collecting chamber of the cleaning device to the hollow cylinder. Utility model registration claims 1 to 7 extend through the member to the toner collection chamber of the developing device.
The image generator according to any of the preceding paragraphs.