JPH0326157U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a partially omitted perspective view showing the main parts of the developing device of the present invention, Fig. 2 is an exploded perspective view showing the main parts of the developing device of the present invention, and Fig. 3 a, b, and c are three developing devices. FIG. 4 is a plan view showing the seal peeling member provided on each of the developer replenishment cartridges; FIG. 4 shows the movement of the replenishment frequency limiting member as the seal peeling member peels off the developer replenishment cartridge with the developer replenishment cartridge attached to the container body. A cross-sectional diagram to explain the
FIG. 5 is a schematic side sectional view showing how the replenishment number limiting member is prevented from reversing by the ratchet gear, and FIG. 6 shows how the stopper 17k comes into contact with the protrusion 16b, making rotation of the replenishment number limiting member impossible. 7 is a schematic side sectional view showing a state in which an inappropriate developer supply cartridge is attached to the container body, and FIG. 8 is a perspective view showing a conventional developing device equipped with a developer supply cartridge. It is a diagram. DESCRIPTION OF SYMBOLS 1...Developing device, 2...Container body, 5...Developer supply cartridge, 17...Replenishment number limit member,
18... Seal peeling member.

Claims (1)

[Scope of Claim for Utility Model Registration] A container body that has a developer supply port and is removably installed in the main body of an image forming apparatus, and an opening for discharging replenishment developer stored inside to the outside by a sealing member. By pulling out a seal peeling member attached above the developer supply port and formed at one end of the seal member, the opening and the developer supply port are communicated with each other. a developer replenishment cartridge for replenishing the developer; and a developer replenishment cartridge provided on the container body that rotates in one direction in conjunction with an operation of engaging the seal peeling member and pulling out the seal peeling member, and a predetermined replenishment number of times. In the developing device, a plurality of developer replenishment cartridges each having a seal peeling member formed in a different shape is provided, and the replenishment number limiting member is configured to prevent the replenishment number of times limiting member from being pulled out when the number of times of replenishment is reached. A developing device characterized in that it is configured to be able to rotate in one direction while engaging with the seal peeling member only when a plurality of developer supply cartridges are installed in a predetermined order.