Developer cartridge with counting mechanism

Abstract

The invention provides a developer cartridge with a counting mechanism. The developer cartridge comprises a developer and the counting mechanism, wherein the counting mechanism is provided with protrusions which come in contact with a contact lever on an electronic photographing device so as to count the developer cartridge; and each protrusion has a first position and a second position in the direction perpendicular to a side wall of the developer cartridge, and is, in the first position, in contact with the contact lever, but is not, in the second position, in contact with the contact lever. The working principle of the developer cartridge adopting the counting mechanism is greatly different from the prior art. Therefore, the structure of the counting mechanism of the developer cartridge is simpler and more convenient and reliable; the production precision and the production cost are reduced; and the market competitiveness of the developer cartridge is improved.

What is claimed is: 
     
       1. A developer cartridge with a counting mechanism comprising:
 a counting mechanism; 
 a counting mechanism driving member; and  
 a cartridge body for accommodating a developer, the counting mechanism and a the counting mechanism driving member; 
 wherein the counting mechanism comprising comprises a protrusion moving under the a driving action of the counting mechanism driving member from a second position in which the protrusion being not in contact with a contact lever on an electronic photographing device to a first position in which the protrusion being in contact with the contact lever on the electronic photographing device so as to count the developer cartridge; and 
 wherein the counting mechanism driving member driving drives the protrusion to move away from a side wall of the cartridge body in a direction perpendicular to the side wall, and the protrusion in the first position is farther away from the side wall than in the second position in the direction perpendicular to the side wall. 
 
     
     
       2. The developer cartridge according to  claim 1 , wherein the counting mechanism comprises a rotary member and a fixed member;
 wherein the fixed member is fixed on the side wall of the developer cartridge; 
 wherein the rotary member can rotate relative to the developer cartridge; and the protrusion is arranged on a surface of the rotary member far away from the fixed member; and 
 wherein the protrusion in the first position is farther away from the fixed member than in the second position in the direction perpendicular to the side wall. 
 
     
     
       3. The developer cartridge according to  claim 2  further comprising a hanging wall also arranged on the rotary member, and a gear is arranged on the an outer circumference of the hanging wall and engaged with the counting mechanism driving member. 
     
     
       4. The developer cartridge according to  claim 3 , wherein the a width of the hanging wall is small enough to make the rotary member not rotate when the rotary member is in the first position. 
     
     
       5. The developer cartridge according to  claim 3 , wherein the a width of the hanging wall is large enough to make the rotary member keep rotating when the rotary member is in the first position. 
     
     
       6. The developer cartridge according to  claim 2  further comprising a cylinder arranged on one of the rotary member or and the fixed member, and comprises having a threaded portion and an unthreaded portion; the other one of the rotary member or and the fixed member is being provided with a screwed hole corresponding to the cylinder. 
     
     
       7. The developer cartridge according to  claim 6 , wherein a thread pitch or a plurality of thread pitches are arranged on the threaded portion. 
     
     
       8. The developer cartridge according to  claim 2 , wherein the rotary member comprises a first rotary member and a second rotary member; the first rotary member is provided with a concave hole; a protruded post is arranged on the second rotary member; and the protruded post is used with the concave hole to drive the second rotary member and the first rotary member to be in synchronous rotation. 
     
     
       9. The developer cartridge according to  claim 8 , wherein: 
 when the protrusion on the rotary member is in the second position, the threaded portion on the rotary member is not engaged with or partially engaged with the screwed hole; 
 when the protrusion on the rotary member is in the first position, the threaded portion is not engaged with the screwed hole again, and the unthreaded portion comes in contact with the screwed hole. 
 
     
     
       10. The developer cartridge according to  claim 2 , wherein the protrusion is includes a truncated cone or inverted truncated cones, and come comes in contact with the a contact lever on an electronic photographing device when the rotary member move moves away from the side wall of the developer cartridge. 
     
     
       11. A developer cartridge, comprising
 a counting mechanism;   a counting mechanism driving member; and   a cartridge body for accommodating a developer, the counting mechanism, and the counting mechanism driving member,   wherein the counting mechanism comprises a rotary member and a fixed member;   wherein the fixed member is fixed on a side wall of the developer cartridge;   wherein the counting mechanism further comprises a protrusion arranged on a surface of the rotary member away from the fixed member; and   wherein, being driven by the counting mechanism driving member, the rotary member rotates relative to the developer cartridge to engage and disengage the fixed member to start and stop a counting function of the counting mechanism.    
     
     
       12. The developer cartridge according to claim 11, further comprising a hanging wall also arranged on the rotary member; and a gear arranged on an outer circumference of the hanging wall and engaged with the counting mechanism driving member.  
     
     
       13. The developer cartridge according to claim 12, further comprising:
 a cylinder arranged on one of the rotary member and the fixed member, and having a threaded portion and an unthreaded portion; the other one of the rotary member and the fixed member being provided with a screwed hole corresponding to the cylinder.    
     
     
       14. The developer cartridge according to claim 13, wherein a thread pitch or a plurality of thread pitches are arranged on the threaded portion.  
     
     
       15. The developer cartridge according to claim 12, wherein the rotary member comprises a first rotary member and a second rotary member; the first rotary member is provided with a concave hole; a protruded post is arranged on the second rotary member; and the protruded post is used with the concave hole to drive the second rotary member and the first rotary member to be in synchronous rotation.  
     
     
       16. The developer cartridge according to claim 11, wherein:
 the protrusion moves from a second position in which the protrusion being not in contact with a contact lever on an electronic photographing device to a first position in which the protrusion being in contact with the contact lever on the electronic photographing device so as to count the developer cartridge; and   the counting mechanism driving member drives the protrusion to move away from a side wall of the cartridge body in a direction perpendicular to the side wall, and the protrusion in the first position is farther away from the side wall than in the second position in the direction perpendicular to the side wall.    
     
     
       17. The developer cartridge according to claim 16, wherein:
 the protrusion in the first position is farther away from the fixed member than in the second position in the direction perpendicular to the side wall.