TWI414435B - Photosensitive drum of the conductive device - Google Patents

Abstract

The conductive device of photosensitive drum of present invention comprises a receiving member combined with the photosensitive drum, and the metal shaft of the photosensitive drum cartridge is penetrated through the axis of the receiving member; a first conductor configured on the receiving member and electrically connected to the photosensitive drum; a second conductor configured on the receiving member and electrically connected to the metal shaft of the photosensitive drum cartridge; and, a resistance element electrically connected with the first conductor and the second conductor.

Description

Photoconductor drum conductive device

The present invention mainly discloses a conductive device, and more particularly to a conductive device for a photosensitive drum used in a printing system.

The photosensitive drum is the core of the printing technique, and has a special characteristic that the photosensitive drum is electrically conductive when exposed, but is an insulator when the photosensitive drum is not exposed to light.

The drum operation program mainly includes six steps of power distribution, exposure, development, transfer, cleaning and power removal. When the printing system receives the printing instruction, the cloth pole or the corona device is electrically connected to the photosensitive drum, so that the surface of the photosensitive drum is filled with a negative electric charge or a positive electric potential, and the processor of the printing system transmits the image data. The laser beam or the light-emitting diode beam is irradiated onto the photosensitive drum to form an exposure at a corresponding position, and the surface static charge at the exposure position is generated by the electron-hole pair generated by the charge generating layer in the photosensitive drum due to illumination. To neutralize the negative or positive charge on the surface of the drum, the area reaching the exposure is electrically neutral and no longer has an electrostatic charge. Then, since the toner has the same electric charge as the photosensitive drum, when the rapidly rotating photosensitive drum passes through the toner cartridge, the exposed portion absorbs the charged toner to further visualize the image. When the paper enters the inside of the printing system with a positive or negative charge opposite to the toner, the toner on the drum is transferred to the paper due to the attraction of the opposite sex. Finally, the residual toner on the photosensitive drum is cleaned, and the residual toner is cleaned by a doctor blade while removing static electricity, so that the potential of the surface of the photosensitive drum is returned to the initial state, so as to unfold the next loop motion.

In order to achieve the photosensitive property of the photosensitive drum and the insulating property when not exposed, the photosensitive drum may form a three-layer (or three or more) coating layer on the aluminum substrate, or may be formed on the aluminum substrate after the anode treatment. The coating layer of two layers (or two or more layers) is exemplified by a process of forming a three-layer coating layer on an aluminum substrate. The first layer is an adsorption layer or a resistive layer having a thickness of about >0.5 μm; the second layer is a photosensitive layer and a charge generating layer having a thickness of <1 μm. The composition of the layer is a dye, and the function is to generate an electron hole after exposure. The third layer is a conductive layer and a charge-conducting layer, and its thickness is 10~50μm. Its main purpose is to charge the charge and act as a protective layer of the photosensitive drum, and the positive or negative charge generated after exposure and the photosensitive drum The surface is negative or positively neutralized.

The first layer of coating applied on the aluminum substrate acts to adsorb and bond the coating, and the surface roughness of the aluminum substrate is changed by the first layer coating treatment, and the aluminum substrate is controlled by the aluminum substrate. Surface roughness prevents unwanted interference from incident laser light. And further increase the impedance value of the photosensitive drum, so that the photosensitive drum has a stored charge to maintain aging. During the process of charging, exposing, developing, and transferring the photosensitive drum, the electric charge that needs to be attached to the photosensitive drum can be continuously maintained until the transfer step. And when the laser beam is subjected to an exposure step, the laser beam can quickly remove the previously charged charge completely from the surface of the photosensitive drum.

A photosensitive drum having an anodized layer and a two-layer coating layer, although the anode treatment can provide a better printing effect for the photosensitive drum, the cost of the anode treatment is quite high, and the anode treatment is located at the bottom layer, and when the other layer is coated When the layer is coated or transported to cause collision or damage of the processed photosensitive drum, the photosensitive drum which has been processed and defective is formed to be scrapped and cannot be used.

Later, with the three-layer coating layer of the photosensitive drum, the first coating layer replaced the anodized layer based on the lower cost factor, and the first coating layer has the main effect of the anodized layer, but The first coating layer achieves poor performance. The first coating layer mainly has a "defect of the photosensitive drum which is subjected to a large current and is broken down" because the first coating layer is a coating technique, and the photosensitive drum area is large and the coating material is likely to be unevenly mixed. The local area is rendered low impedance, and the low impedance portion will form a short circuit and cause a large current to break down.

Referring to China Patent Publication No. 373593 "Photosensitive roller holder", a photosensitive roller fixing shaft hole is arranged in front of a main body, and a hollow recovery groove is formed on the back side, and includes: a toner recovery mechanism and A high-voltage line cleaning mechanism is combined; by the above mechanism, one of the following: the driving gear and the driven gear are driven by the rotating mechanism of the photosensitive drum to drive the recovery scraper to rotate, and when the scraper is used, the photosensitive drum is not transferred. After the toner is scraped off, the recycling scraper can scrape the toner into the recovery tank, and block the toner with a baffle to prevent the toner from falling on the photocopying paper; Second: the high-voltage wire cleaning mechanism The pull rod is pulled to one side. When the slide is pulled forward by the oblique side of the slide rail, the push piece will be retracted along the wall surface of the slide rail to force the two pressure plates to move inward respectively, and the cleaning block is pressed. Attached to the high-voltage line, when the sliding seat is pulled back and forth, the high-voltage line can be cleaned and wiped to achieve better use.

It can be known from the aforementioned patent that when the photosensitive drum is installed in the photosensitive drum, the photosensitive drum is provided with a driven gear, and it is driven by the transmission gear to generate a turning effect. In addition to the drive function, the driven gear acts as an important medium in the step of powering up.

The driven gear is connected to a metal shaft, and the driven gear is attached with a copper piece. The metal shaft simultaneously contacts the inner circumference of the copper piece, and the outer periphery of the copper piece contacts the photosensitive drum. When the metal shaft receives the external power transmission, the metal shaft is electrically contacted with the copper sheet, and the copper sheet is electrically contacted with the photosensitive drum to further complete the step of discharging.

The photosensitive drum currently in use can be changed to have conductive characteristics and have insulating properties. In order to provide the photosensitive drum with such characteristics, the coating layer on the photosensitive drum appears to be quite important, and the coating layer on the photosensitive drum is not allowed to have impurities, uneven thickness, and the like. Therefore, the process requirements of the photosensitive drum are extremely strict, and the cost of such a coating method is high. Furthermore, since the photosensitive roller has to repeat the loop of the six steps of the aforementioned photosensitive roller operation procedure, the performance of the photosensitive roller may be lowered after the photosensitive roller is used for a period of time, which may be due to a decrease in the efficiency of the electrical discharge, or The charge cannot be quickly and completely left from the photosensitive drum during exposure, so that the toner is not fixed enough, or the toner is not cleaned so that residual toner adheres to the photosensitive drum. When the photosensitive roller can not provide the initial working effect, the photosensitive roller must be replaced with a new one. However, in the cumbersome process of the photosensitive roller, directly replacing the photosensitive roller of the new product is undoubtedly a considerable burden for the consumer.

Accordingly, the present invention is intended to obviate or at least alleviate the problems encountered in the prior art.

The technical problem to be solved by the present invention is to provide a conductive device for a photosensitive drum in view of the deficiencies in the prior art.

The main technical improvement of the invention is that the conductive device has the function of controlling the magnitude of the current, and the conductive device directly provides an appropriate impedance capability, and can avoid excessive leakage current. Since the photosensitive drum has a plurality of coating layers, the coating layer belongs to a coating film mixture, which is a non-uniform material, and the coating film of the coating layer absorbs water, and the electric resistance value becomes low, resulting in deterioration of insulation and electric leakage. The conductive device of the present invention provides a uniform resistance value, and the impedance is not affected by changes in temperature and humidity, so that the conductive device is not affected by the coating 瑕疵 of the photosensitive drum, and is not affected by the ambient temperature and humidity, and can improve the quality of the conventional photosensitive drum. The lack of control is not easy. Moreover, the conductive device can avoid the breakdown problem of the photosensitive drum, and the resistance value of the conductive device has no local low impedance and the large current breakdown is lost. The conductive device of the present invention does provide the printing capability that meets the requirements.

The technical means for the secondary improvement of the present invention is that the resistor member has an impedance capability for the flow of current, and the resistor member can avoid the lack of breakdown of the photosensitive drum by a large current, and can avoid the occurrence of a short circuit.

Another technical means for improvement of the present invention is that the cost of the conductive device is much lower than the cost of the photosensitive drum, and even when the conductive device is worn out, the user can replace the less expensive conductive device to save printing cost. The effect.

Other objects, advantages and novel features of the invention will be apparent from the description and appended claims.

The technology, means and effects of the present invention are set forth in the accompanying drawings, and the description of the drawings and the accompanying drawings.

1 , 2 and 3 are a perspective view, an exploded perspective view and a cross-sectional view of a photosensitive drum, a photosensitive drum and a conductive device of the present invention. The conductive device 1 of the present invention is axially coupled to the photosensitive drum 2 of the printing system, and the photosensitive drum 2 is disposed in the photosensitive drum 3. The conductive device 1 can be coupled to the photosensitive drum 2 which is not anodized. The two ends of the photosensitive drum 2 are respectively connected to the photosensitive drum 3 by the conductive device 1 and a shaft connector (not shown). 1 and the shaft joint have teeth on the outer circumference thereof, and can be driven to further drive the photosensitive drum 2 to rotate. The photosensitive drum 3 is provided with a metal shaft 301. The metal shaft 301 is disposed through the photosensitive drum 3 and the conductive device 1. The metal shaft 301 and the photosensitive drum 2 are electrically connected by the conductive device 1.

The conductive device 1 has the effect of controlling the magnitude of the current, and the conductive device 1 directly provides an appropriate impedance capability to avoid excessive leakage current. Since the photosensitive drum 2 has a plurality of coating layers, the coating layer belongs to a coating film mixture, which is a non-uniform material, and the coating film of the coating layer absorbs water, and the electric resistance value becomes low, resulting in deterioration of insulation and electric leakage. The conductive device 1 of the present invention provides a uniform resistance value, and the impedance is not affected by the temperature and humidity changes, so that the conductive device 1 is not affected by the coating 瑕疵 of the photosensitive drum 2, and is not affected by the ambient temperature and humidity, and can improve the conventional The photosensitive drum 2 is not easy to control the quality of the tube. Furthermore, the conductive device 1 can avoid the breakdown problem of the photosensitive drum 2, and the resistance value of the conductive device 1 has no local low impedance and causes a large current breakdown. The conductive device 1 of the present invention is indeed capable of providing a printing capability that meets the requirements.

4 and FIG. 5 are a perspective view and an exploded perspective view of the conductive device of the present invention. The conductive device 1 includes a receiving member 10, a first guiding member 20, a resisting member 30 and a second guiding member 40. The receiving member 10 can be disposed at the inner edge of the photosensitive drum 2, and the first guiding member 20, the resisting member 30 and the second guiding member 40 are located at the same end of the receiving member 10, and the photosensitive drum 3 The metal shaft 301 is disposed in the axial center of the receiving member 10. The first guiding member 20 is disposed on the receiving member 10. The first guiding member 20 is electrically connected to the photosensitive drum 2. The second guiding member 40 is disposed on the receiving member 10 The receiving member 10 is electrically connected to the metal shaft 301 of the photosensitive drum 3, and the resistor member 30 is electrically connected to the first guiding member 20 and the second guiding member 40. The conductive device 1 provides an efficient transfer current effect by the first guiding member 20 and the second guiding member 40, and the impedance generated by the resistor member 30 further controls the current circulation, and the photosensitive drum 2 and the photosensitive device are sensitized. The currents of the metal shafts 301 of the drumsticks 3 are not equal.

6 and FIG. 7 and FIG. 8 are cross-sectional views of the conductive device of the present invention. The receiving member 10 is coupled to the inner edge of the photosensitive drum 2. The receiving member 10 includes a first end 101 and a second end 102. The outer edge of the receiving member 10 includes a pressing edge 11, at least one receiving slot 12, and a protrusion. The edge 13 and a tooth portion 14 can be tightly disposed on the inner edge of the photosensitive drum 2. The flange 13 is located between the pressing edge 11 and the tooth portion 14. The receiving groove 12 is disposed on the pressing edge 11 and the receiving groove 12 communicates with the end surface of the first end 101 of the receiving member 10. The tooth portion 14 Located at the second end 102. The receiving member 10 is provided with a perforation 15 that penetrates the first end 101 and the second end 102. The end surface of the first end 101 of the receiving member 10 includes a receiving portion 16, two limiting portions 17 and a plurality of joint portions 18. The receiving portion 16 is formed on the end surface of the first end 101 of the receiving member 10, and the receiving portion 16 penetrates the peripheral edge of the opposite sides of the receiving member 10 and the through hole 15, and the receiving portion 16 receives the receiving member 10 The end faces of one end 101 are spaced apart to form a first region 191 and a second region 192. The two limiting portions 17 are respectively disposed on the first region 191 and the second region 192, and the two limiting portions 17 are connected to the receiving portion 16, and the two limiting portions 17 are connected by a virtual line L. The virtual line L is away from the through hole 15. In this embodiment, the joint portion 18 is provided with four, two of which are protruded from the first region 191, and the other two are protruded from the second region 192.

The receiving member 10 can be disposed on the photosensitive drum 2, and the pressing edge 11 of the receiving member 10 is tightly disposed on the inner edge of the photosensitive drum 2. The flange 13 is disposed on the end surface of the photosensitive drum 2, and the tooth portion 14 is disposed. The end face of the second end 102 of the receiving member 10 abuts against the inner wall of the photosensitive drum 3, and the metal shaft 301 passes through the through hole 15 of the receiving member 10.

The first guiding member 20 is formed in a sheet shape and approximately fan-shaped, and can transmit current efficiently. The first guiding member 20 is prepared from a high-conductivity metal material such as copper, aluminum, silver, etc. The first region 20 of the receiving member 10 includes at least one first pin 21, a dodging portion 22 and a plurality of fixing holes 23. The first pin 21 protrudes from the outer edge of the first guiding member 20 , and the first pin 21 abuts against the inner edge of the photosensitive drum 2 . The outer edge of the first guiding member 20 further forms at least two first grooves 24, and the first pin 21 is located between the two first grooves 24, and the first groove 24 is provided by the first groove 24. The first pin 21 can be bent. When the first pin 21 is bent, the receiving slot 10 of the receiving member 10 can accommodate the first pin 21. In this embodiment, the first guiding member 20 is provided with two first pins 21, and the outer edges of the first guiding member 20 form a total of four first grooves 24. The dodging portion 22 is formed in a concave shape, and the dodging portion 22 is located on a side of the first guiding member 20 opposite to the first pin 21 . The fixing hole 23 is sleeved on the joint portion 18 of the receiving member 10, and the first guiding piece 20 is further fixed to the receiving member 10. The dodging portion 22 corresponds to the through hole 15, and the dodging portion 22 can evade the metal shaft. 301 is not in contact with the metal shaft 301.

The resistor member 30 has an impedance capability for the flow of current, and the resistor member 30 can prevent the photoconductor drum 2 from being damaged by a large current and can avoid the occurrence of a short circuit. The resistor member 30 can be selected as a resistor. The resistor member 30 is disposed at an end surface of the first end 101 of the receiving member 10, and the resistor member 30 is away from the through hole 15. The resistor member 30 includes a body portion 31, a first end leg 32 and a second end leg 33. The first end leg 32 and the second end leg 33 are respectively located at opposite ends of the body portion 31. The body portion 31 of the resistor member 30 is disposed on the receiving portion 16 of the receiving member 10. The first end leg 32 of the resistor member 30 is disposed on the limiting portion 17 of the first region 191. The first leg 32 is electrically The first guide 20 is turned on. The second end leg 33 is disposed at the limiting portion 17 of the second region 192 .

The second guiding member 40 is a strip-shaped conductor and is approximately fan-shaped, and can transmit current efficiently. The second guiding member 40 is made of high-conductivity metal materials such as copper, aluminum, silver, etc., and is electrically connected. a second end leg 33 of the resistor member 30, the second guide member 40 is disposed at a second region 192 of the end surface of the first end 101 of the receiving member 10, and the second guiding member 40 includes a second pin 41 and a plurality Fixed holes 42. The second pin 41 is disposed on the outer edge of the second guiding member 40, and the outer edge of the second guiding member 40 further defines two second grooves 43. The second pin 41 is located in the two paths. Between the two grooves 43, the second groove 43 provides the effect that the second pin 41 can be bent. An end portion of the second pin 41 further defines an abutting portion 411 that abuts against the metal shaft 301. By virtue of the fact that the second pin 41 can be bent, the second pin 41 can be reliably abutted against the metal shaft 301 to generate electrical conduction.

The first guiding member 20 and the second guiding member 40 are respectively disposed on the first region 191 and the second region 192 of the receiving member 10, and the first guiding member 20 and the second guiding member 40 are not in contact with each other.

The plurality of joints 18 are disposed in the fixing holes 23 of the first guide member 20 and the fixing holes 42 of the second guide member 40. The joint portion 18 can prevent the first guide member 20 and the second guide member 40 from being fixed. It is detached from the receiving member 10.

The first end leg 32 of the resistor member 30 is limited to the limiting portion 17 of the first region 191, and the second end leg 33 of the resistor member 30 is limited to the limiting portion 17 of the second region 192, and the first The guiding member 20 is pressed against the first end leg 32, and the second guiding member 40 is pressed against the second end leg 33, so that the resistor member 30 cannot be separated from the receiving member 10, the first guiding member 20 and the first Two guides 40.

When the conductive device 1 is mounted on the photosensitive drum 2 and the photosensitive drum 3, the receiving member 10 is tightly mounted on the photosensitive drum 2, and the conductive device 1 has only the first pin 21 of the first guiding member 20. It is electrically connected to the photosensitive drum 2. The conductive device 1 only has the second pin 41 of the second guiding member 40 electrically connected to the metal shaft 301.

The resistor member 30 is disposed between the first guiding member 20 and the second guiding member 40. The resistor member 30 provides an impedance to cause a current flowing through the first guiding member 20 and flow through the second guiding member 40. The currents are not equal.

By increasing the resistance member 30, the magnitude of the current can be controlled. When the current conducted by the conductive device 1 has an impedance, the conductive device 1 provides an appropriate impedance capability to improve the impedance capability of the photosensitive drum 2 due to loss of use for a period of time. Decline, and be able to provide the required printing capabilities. Moreover, the cost of the conductive device 1 is much lower than the cost of the photosensitive drum 2. Even when the conductive device 1 is worn out, the user can replace the less expensive conductive device 1 to save the printing cost.

As far as the above is concerned, it can be concluded that the present invention has the following advantages:

1. The "conductive device of the photosensitive drum" of the present invention, the conductive device having the effect of controlling the magnitude of the current, the conductive device directly providing an appropriate impedance capability, and capable of avoiding excessive leakage current. Since the photosensitive drum has a plurality of coating layers, the coating layer belongs to a coating film mixture, which is a non-uniform material, and the coating film of the coating layer absorbs water, and the electric resistance value becomes low, resulting in deterioration of insulation and electric leakage. The conductive device of the present invention provides a uniform resistance value, and the impedance is not affected by changes in temperature and humidity, so that the conductive device is not affected by the coating 瑕疵 of the photosensitive drum, and is not affected by the ambient temperature and humidity, and can improve the quality of the conventional photosensitive drum. The lack of control is not easy. Moreover, the conductive device can avoid the breakdown problem of the photosensitive drum, and the resistance value of the conductive device has no local low impedance and the large current breakdown is lost. The conductive device of the present invention does provide the printing capability that meets the requirements.

2. The "conductive device of the photosensitive drum" of the present invention, which has an impedance capability for the flow of current, the resistor member can prevent the photosensitive drum from being subjected to a large current and the breakdown of the breakdown, and can avoid the occurrence of a short circuit.

3. The "conductive device of the photosensitive drum" of the present invention, the cost of the conductive device is much lower than the cost of the photosensitive drum, and even if the conductive device is worn out, the user can replace the cheaper conductive device to save printing The cost of the effect.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.

1‧‧‧Electrical device

10‧‧‧Receiving parts

101‧‧‧ first end

102‧‧‧ second end

11‧‧‧ 紧紧

12‧‧‧ 容容

13‧‧‧Front

14‧‧‧ teeth

15‧‧‧Perforation

16‧‧‧ ‧ Department

17‧‧‧Limited

18‧‧‧Combination Department

191‧‧‧ first area

192‧‧‧Second area

L‧‧‧ virtual line

20‧‧‧First Guide

21‧‧‧First pin

22‧‧‧Destance Department

23‧‧‧Fixed holes

24‧‧‧First groove

30‧‧‧Resistance parts

31‧‧‧ Body

32‧‧‧First leg

33‧‧‧second leg

40‧‧‧Second Guide

41‧‧‧second pin

411‧‧‧Resistance

42‧‧‧Fixed holes

43‧‧‧second groove

2‧‧‧Photosensitive drum

3‧‧‧Photosensitive drumstick

301‧‧‧Metal shaft

Figure 1 is a perspective view of the photosensitive drum, photosensitive drum and conductive device of the present invention.

Figure 2 is an exploded perspective view of the photosensitive drum, photosensitive drum and conductive device of the present invention.

Figure 3 is a cross-sectional view showing a photosensitive drum, a photosensitive drum, and a conductive device of the present invention.

Figure 4 is a perspective view of the conductive device of the present invention.

Figure 5 is an exploded perspective view of the conductive device of the present invention.

Figure 6 is a cross-sectional view of the conductive device of the present invention taken along line 6-6 of Figure 4.

Figure 7 is a cross-sectional view of the present invention taken along line 7-7 of Figure 6.

Figure 8 is a cross-sectional view of the present invention taken along line 8-8 of Figure 6.

1. . . Conductive device

10. . . Receiving piece

101. . . First end

102. . . Second end

11. . . Tight edge

12. . . Crate

13. . . Flange

14. . . Tooth

15. . . perforation

16. . . Tolerance

17. . . Limiting department

18. . . combination

191. . . First area

192. . . Second area

20. . . First guide

twenty one. . . First pin

twenty two. . . Dodge department

twenty three. . . Fixed hole

twenty four. . . First groove

30. . . Resistor

31. . . Body

32. . . First end

33. . . Second end

40. . . Second guide

41. . . Second pin

411. . . Conflicting part

42. . . Fixed hole

43. . . Second groove

Claims (10)

A conductive device for a photosensitive drum, comprising: a receiving member coupled to the photosensitive drum, wherein a metal shaft of the photosensitive drum is disposed at an axis of the receiving member; and a first guiding member is disposed at the receiving member The first guiding member is electrically connected to the photosensitive drum; a second guiding member is disposed on the receiving member, the second guiding member is electrically connected to the metal shaft of the photosensitive drum; and a resistor member is electrically connected to the first guiding member a guide and the second guide. The conductive device of the photosensitive drum according to claim 1, wherein the receiving member comprises a first end and a second end, the receiving member is provided with a through hole penetrating the first end and the second end, and the metal of the photosensitive drum A shaft is threaded through the perforation. The conductive device of the photosensitive drum of claim 2, wherein the end surface of the first end of the receiving member comprises a first region and a second region; the first guiding member is disposed in the first region of the receiving member, the first A guiding member includes at least one first pin, the first pin abuts against an inner edge of the photosensitive drum, the resistor member is disposed at an end surface of the first end of the receiving member, and the second guiding member includes a second pin The second pin is abutted on the metal shaft. The conductive device of the photosensitive drum of claim 3, wherein the resistor comprises a body portion, a first end leg and a second end leg, the first end leg and the second end leg being respectively located at the body portion The first end is electrically connected to the first guiding member, and the second end electrically electrically connects the second guiding member. The conductive device of the photosensitive drum according to claim 4, wherein the end surface of the first end of the receiving member comprises a receiving portion, and the body of the resisting member is located at the receiving portion. The conductive device of the photosensitive drum of claim 5, wherein the receiving portion is formed radially on an end surface of the first end of the receiving member, the receiving portion penetrating the peripheral edge of the opposite sides of the receiving member and the through hole, the capacity The portion of the first end of the receiving member is partitioned to form the first region and the second region. The conductive device of the photosensitive drum of claim 5, wherein the end surface of the first end of the receiving member comprises two limiting portions, the two limiting portions are connected to the receiving portion, and the two limiting portions are virtual A line is connected, the virtual line being away from the perforation. The conductive device of the photosensitive drum of claim 3, wherein the first guiding member further comprises a dodging portion corresponding to the perforation, and the dodging portion is capable of evading the metal shaft without contacting the metal shaft, the first The outer edge of a guiding member further forms at least two first grooves, and the first pin is located between the two first grooves, and the first groove is provided to be bendable by the first groove efficacy. The conductive device of the photosensitive drum of claim 3, wherein the outer edge of the second guiding member further forms two second grooves, and the second pin is located between the two second grooves, by the The second groove provides the effect that the second pin can be bent, and the end of the second pin further forms an abutting portion that can be abutted against the metal shaft. The conductive device of the photosensitive drum of claim 3, wherein the outer edge of the receiving member comprises at least one receiving groove and a flange, the receiving groove of the receiving member can accommodate the first pin, and the flange is disposed at the flange An end surface of the photosensitive drum, the first end of the receiving member includes a plurality of joint portions, the first guide member includes a plurality of fixing holes, the second guiding member includes a plurality of fixing holes, and the plurality of joint portions are disposed at the first end The fixing hole of the guiding member and the fixing hole of the second guiding member can prevent the first guiding member and the second guiding member from being separated from the receiving member.