Processing box and processing box refitting method
A technology of processing cartridges and photosensitive drums, applied in the fields of electrography, optics, instruments, etc., can solve the problems of high printing cost, large amount of toner, unfavorable development, etc., and achieve the effect of reducing printing cost and smooth waveform
Inactive Publication Date: 2012-04-11
PRINT RITE UNICORN IMAGE PROD CO LTD
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Problems solved by technology
In this development method, the toner at the edge of the development area is easy to go to other places, which is not conducive to development, and the amount of toner consumed in the printing process is large, and the printing cost is high
Method used
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Embodiment 2
[0048] Process box, including toner bin, powder discharge blade, developing roller, photosensitive drum, charging roller, cleaning blade, waste toner bin, etc., wherein the developing roller and photosensitive drum are in contact along the axis, and the photosensitive drum is grounded. An electronic module is also provided in the process box.
[0049] see Figure 8 , Figure 8 A structural diagram of the electronic module of the process cartridge of this embodiment is shown.
[0050] The difference between this embodiment and the first embodiment above is that the ground terminal GND of the electronic module in the first embodiment becomes the third terminal T3 of this embodiment. In this embodiment, the third terminal T3 is electrically connected to the photosensitive drum. Because the photosensitive drum is grounded, in fact, the third terminal T3 in this embodiment is still grounded, but it is grounded through the photosensitive drum. The structural principle of this emb...
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The invention provides a processing box and a processing box refitting method. A photosensitive drum of the processing box is in axial contact with a developing device of the processing box, and an electronic module is arranged in the processing box. The electronic module comprises a diode, a filter capacitor, a resistor, a voltage stabilizing tube and a second wiring terminal, wherein the negative pole of the diode is electrically connected with a first wiring terminal, and the first wiring terminal is used for receiving power supply signals on a laser printer; the filter capacitor is electrically connected between the positive pole of the diode and the ground; the resistor and the voltage stabilizing tube are mutually connected in series, the other end of the resistor is electrically connected with the positive pole of the diode, and the other end of the voltage stabilizing tube is grounded; and the second wiring terminal is electrically connected with a connecting point between the resistor and the voltage stabilizing tube, and the second wiring terminal outputs developing bias signals to the developing device. The electronic module converts the developing bias which is supplied to the processing box from the laser printer and contains alternating current components and direct current components into the developing bias of negative direct current, and the photosensitive drum is in contact with the developing device along an axial line, thereby realizing an operating mode of contact-type developing, and further improving the print quality.
Description
technical field [0001] The present invention relates to a process cartridge for an electrophotographic image forming apparatus and a refitting method thereof. Background technique [0002] Electrophotographic imaging equipment is a device that uses the principle of electrophotographic imaging to form images on recording materials, and it includes electrophotographic copiers, electrophotographic printers, electrophotographic printing fax machines, and the like. A process cartridge used in an electrophotographic image forming apparatus, which is a unit cartridge including at least a developing roller and a photosensitive drum as developing means, is detachably mounted in a main body of the electrophotographic image forming apparatus. [0003] A typical electrophotographic imaging device is a laser printer, which is one of the most widely used computer external output devices at present. It uses the physical and chemical principles of light, electricity and heat to output text ...
Claims
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Login to View More IPC IPC(8): G03G21/18
CPCG03G21/1867G03G21/18G03G15/08G03G21/1814
Inventor 周宏辉杨晓锋
Owner PRINT RITE UNICORN IMAGE PROD CO LTD