Image forming apparatus

Abstract

The embodiment of the utility model provides an image forming device, and relates to the technical field of imaging. The image forming apparatus includes a housing, a data board, and a conductive member. The data board is provided with an external component, the frame body is provided with a metal piece, the conductive piece is arranged between the data board and the frame body, the conductive piece is electrically connected with the metal piece and the external component, the space between the data board and the frame body can be fully utilized to install the conductive piece, the device body cannot be enlarged, and then miniaturization of the image forming device can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of imaging technology, and particularly relates to an image forming apparatus. Background Art

[0002] The image forming apparatus originated from the laser phototypesetting technology in the late 1980s and became popular in the mid-1990s. It is a printing output device that combines laser scanning technology and electrophotography technology. As an image output device, the image forming apparatus can receive a job request sent from a terminal and output a desired image on paper.

[0003] In the related art, the image forming apparatus includes a device body, a printed circuit board (PCB) substrate, and a grounding elastic piece; the device body includes a frame body and an air duct housing; the frame body includes a sheet metal side plate and a sheet metal housing, and the sheet metal housing is installed on the sheet metal side plate by screws; the air duct housing is installed on the frame body, and a fan is arranged inside the air duct housing; the PCB substrate is installed on the sheet metal side plate assembly and the air duct housing; the grounding elastic piece is installed on the side of the PCB substrate facing away from the air duct housing.

[0004] However, during the miniaturization process of the image forming apparatus, the grounding elastic piece is installed on the side of the PCB substrate facing away from the air duct housing, which will increase the size of the device body and is not conducive to the miniaturization of the image forming apparatus. Summary of the Utility Model

[0005] Embodiments of the utility model provide an image forming apparatus to solve the problem that during the miniaturization process of the image forming apparatus, the grounding elastic piece is installed on the side of the PCB substrate facing away from the air duct housing, which will increase the size of the device body and is not conducive to the miniaturization of the image forming apparatus.

[0006] Embodiments of the utility model provide an image forming apparatus, which is internally provided with a frame body and a data board, and includes a conductive member;

[0007] External components are arranged on the data board, the frame body has a metal member, the conductive member is arranged between the data board and the frame body, and the conductive member is electrically connected to the metal member and the external components respectively.

[0008] In a possible implementation manner, the frame body includes two opposite side plates, and the data board is installed outside one of the two side plates.

[0009] In a possible implementation manner, a first functional module is arranged on the side plate, the first functional module is locked to the side plate through a connection shell, the connection shell is electrically connected to the side plate, and the conductive member is electrically connected to the connection shell.

[0010] In a possible implementation manner, a second functional module is disposed between the data plate and the side plate, and the second functional module includes a non-conductive plastic part and a conductive cover plate;

[0011] The cover plate is conductively connected to the connection shell, and the conductive member is conductively connected to the connection shell through the cover plate.

[0012] In a possible implementation manner, the external component is located at a side of the data plate away from the frame, and a clearance opening is provided on the data plate, and the conductive member can pass through the clearance opening to contact the external component.

[0013] In a possible implementation manner, the conductive member is an elastic member, and the elastic member elastically abuts against the external component.

[0014] In a possible implementation manner, the second functional module is an air duct assembly, the air duct assembly includes an air duct pipe and a drainage device disposed at an air outlet of the air duct pipe, the drainage device discharges air around an air inlet of the air duct pipe to dissipate heat from the image forming device;

[0015] The air duct is assembled from a non-conductive air duct wall and a conductive cover plate, a projection of the cover plate in the thickness direction of the data plate at least partially overlaps with a projection of the external component in the thickness direction of the data plate, and the conductive member is locked to the cover plate.

[0016] In a possible implementation, a partition is provided inside the air duct pipe, and the partition divides the inside of the air duct pipe into at least two air ducts, so that the air duct pipe forms a plurality of heat dissipation passages.

[0017] In a possible implementation manner, the data plate is connected to the connection shell and the cover plate, the conductive member is connected to the cover plate, and the conductive member is a grounding member, so that the data plate is electrostatically grounded.

[0018] In a possible implementation manner, the air duct is snap-connected to the frame.

[0019] The embodiment of the utility model provides an image forming device, in which a conductive member is arranged between a data plate and a frame body, and the conductive member is respectively connected to a metal member and an external component. The space between the data plate and the frame body can be fully utilized to install the conductive member, and the device body will not be enlarged, thereby realizing miniaturization of the image forming device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural schematic diagram of an image forming apparatus provided by an embodiment of the present invention;

[0022] Figure 2 For Figure 1 Schematic diagram of the first perspective structure of the image forming apparatus in after removing the outer shell;

[0023] Figure 3 For Figure 1 Schematic diagram of the second perspective structure of the image forming apparatus in after removing the outer shell;

[0024] Figure 4 For Figure 3 Enlarged schematic diagram of part A in ;

[0025] Figure 5 Schematic diagram of the assembled side plate and connecting shell provided by an embodiment of the present invention;

[0026] Figure 6 First perspective structural schematic diagram of the air duct provided by an embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the assembled side plate, connecting shell and air duct provided by an embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the assembled side plate and outer cover provided by an embodiment of the present invention;

[0029] Figure 9 Second perspective structural schematic diagram of the air duct provided by an embodiment of the present invention;

[0030] Figure 10 Third perspective structural schematic diagram of the air duct provided by an embodiment of the present invention;

[0031] Figure 11 Internal structure schematic diagram of the image forming apparatus provided by an embodiment of the present invention.

[0032] Explanation of reference numerals:

[0033] 100 - Outer shell;

[0034] 10 - Housing; 10a - Side plate; 10a1 - Card slot; 10a2 - First side wall; 10a3 - Second side wall; 10a4 - First air inlet; 10b - Connection shell; 10b1 - Third mating hole; 10c - Mounting shell;

[0035] 11 - Second functional module; 1101 - Air duct pipe; 11a - Air duct wall; 11a1 - Buckle; 11a2 - First connection hole; 11a3 - Third side wall; 11a4 - Fourth side wall; 11b - Cover plate; 11b1 - Second connection hole; 111 - Support body; 112 - Connection part; 11c - Partition; 1102 - First air duct; 1103 - Second air duct; 110a - First inlet; 110b - Second inlet;

[0036] 12 - Outer cover;

[0037] 20 - Conductive part; 30 - Data board; 301 - Avoidance opening; 40 - External components; 50 - Drainage device;

[0038] 31 - Processing box; 32 - Transfer belt; 33 - Paper pickup roller; 34 - Paper cassette; 35 - Laser scanning unit; 36 - Heat roller; 37 - Pressure roller; 38 - Discharge roller. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0040] It should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In the present utility model, unless otherwise clearly defined, terms such as "installation", "connection", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0043] In the above description, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0044] As described in the background art, during the process of miniaturizing the image forming apparatus, when the grounding spring piece is installed on the side of the PCB substrate facing away from the air duct housing, it will increase the size of the device body, which is not conducive to the miniaturization of the image forming apparatus. After research by the inventor, it is found that the reason for this problem is that when the grounding spring piece is installed on the side of the PCB substrate facing away from the air duct housing, the grounding spring piece will occupy a certain space on the side of the PCB substrate facing away from the air duct housing, and this space will cause the device body to increase, which is not conducive to the miniaturization of the image forming apparatus.

[0045] To solve the above problems, an embodiment of the present utility model provides an image forming apparatus, which makes full use of the space between the data board and the frame to install the conductive member, and will not cause the device body to increase, thereby realizing the miniaturization of the image forming apparatus.

[0046] The following will describe in detail the image forming apparatus provided by the embodiments of the present utility model with reference to specific embodiments.

[0047] Refer to Figure 1 and Figure 2 As shown, the embodiments of the present utility model provide an image forming apparatus, which includes a housing 100, a frame 10, a conductive member 20, and a data board 30. It should be noted that the image forming apparatus includes, but is not limited to, printers, copiers, fax machines, scanners, and multifunction machines integrating functions such as printing, copying, faxing, and scanning. Its function is to print images or texts on an imaging medium.

[0048] Refer to Figure 1 As shown, the length direction of the image forming apparatus is the X-axis direction, the width direction of the image forming apparatus is the Y-axis direction, and the height direction of the image forming apparatus is the Z-axis direction; the X-axis, Y-axis, and Z-axis are perpendicular to each other.

[0049] The material of the housing 100 can be plastic. The frame 10, the conductive member 20, and the data board 30 are arranged inside the housing 100.

[0050] The material of the frame 10 can be metal. The frame 10 has a metal part, and this metal part is a part of the frame 10.

[0051] The data board 30 is installed on the frame 10, and there is a space for installing the conductive member 20 between the data board 30 and the frame 10.

[0052] Refer to Figure 1 As shown, external components 40 are arranged on the data board 30.

[0053] The external components 40 are used to connect the image forming apparatus to other electronic devices (for example, a computer).

[0054] The external components 40 can be external sockets. The number of the external components 40 can be multiple.

[0055] The external components 40 are located on the side of the data board 30 away from the frame 10. Refer to Figure 3 and Figure 4 As shown, the data board 30 is provided with an avoidance opening 301, and the conductive member 20 can pass through the avoidance opening 301 to contact the external components 40.

[0056] The material of the conductive member 20 can be metal. In some examples, the conductive member 20 is a grounding member, and the grounding member is connected to the ground wire of the image forming apparatus.

[0057] The conductive member 20 is arranged between the data board 30 and the frame 10, and the conductive member 20 is electrically connected to the metal part and the external components 40 on the data board 30 respectively.

[0058] In some examples, the conductive member 20 is a grounding member, and the conductive member 20 is conductively connected to the metal member of the frame 10 . The data board 30 is installed on the frame 10 , so that the data board 30 can be electrostatically grounded, thereby enabling the data board 30 to meet safety grounding requirements.

[0059] The external component 40 on the data board 30 is electrically connected to the conductive member 20, so that the external component 40 meets the safety grounding requirements. Figure 3 and Figure 4 As shown, the conductive member 20 is an elastic member, and the elastic member elastically abuts against the external component 40 , which can improve the stability between the conductive member 20 and the external component 40 .

[0060] The image forming device provided by the embodiment of the utility model can fully utilize the space between the data plate 30 and the frame 10 to install the conductive member 20 without increasing the size of the device body, thereby miniaturizing the image forming device.

[0061] In a possible embodiment, the frame 10 includes two side panels 10a arranged opposite to each other in the width direction of the image forming device (see Figure 2 As shown in FIG. 1 , the data panel 30 is mounted on the outer side of one of the two side panels 10 a , that is, the data panel 30 is mounted on the outer side of the corresponding side panel 10 a .

[0062] The inner side of the side plate 10 a refers to the side of the side plate 10 a facing the other side plate 10 a in the width direction of the image forming apparatus.

[0063] The outer side of the side plate 10 a refers to the side of the side plate 10 a that faces away from the other side plate 10 a in the width direction of the image forming apparatus.

[0064] See also Figure 5 As shown, the frame 10 further includes a connection shell 10b. In the width direction of the image forming apparatus, the connection shell 10b is located between the side plate 10a and the data plate 30, and the data plate 30 is located on one side of the corresponding side plate 10a in the +Y axis direction, that is, the data plate 30 is located on the outside of the side plate 10a.

[0065] The side plate 10a is connected to the side of the connection shell 10b facing away from the data plate 30. Figure 5 As shown, the connecting shell 10b is fixed to the side plate 10a by screws.

[0066] The connection shell 10b is made of metal. In some examples, the connection shell 10b is a sheet metal part.

[0067] It should be noted that the metal parts of the frame 10 include a connecting shell 10b.

[0068] A first functional module is provided on the side plate 10a, and the first functional module is locked to the side plate 10a through a connection housing 10b.

[0069] The first functional module may be a module that generates heat during the operation of the image forming apparatus. In some examples, the first functional module may be a fixing unit of the image forming apparatus, and the fixing unit is located on the side of the side plate 10a facing away from the data board 30.

[0070] The connection housing 10b is electrically connected to the side plate 10a, and the conductive member 20 is electrically connected to the connection housing 10b.

[0071] The housing 10 further includes a mounting housing 10c (see Figure 2 shown). The mounting housing 10c is located on one side of the side plate 10a in the +Y axis direction. Exemplarily, the mounting housing 10c is fixed to the side plate 10a by screws.

[0072] The material of the mounting housing 10c is metal. In some examples, the mounting housing 10c is a sheet metal part.

[0073] The mounting housing 10c can be used to mount a power board.

[0074] In a possible implementation manner, a second functional module 11 is provided between the data board 30 and the side plate 10a (see Figure 3 shown).

[0075] The second functional module 11 includes a non-conductive plastic part and a conductive cover plate 11b (see Figure 6 shown). The cover plate 11b is electrically connected to the connection housing 10b, and the conductive member 20 is electrically connected to the connection housing 10b through the cover plate 11b. In some examples, the conductive member 20 is a grounding member, and through the cover plate 11b, the connection housing 10b can be electrostatically grounded.

[0076] Among them, the first functional module may be a module for heat dissipation during the operation of the image forming apparatus. Exemplarily, the second functional module 11 may be an air duct assembly.

[0077] The air duct assembly includes an air duct tube 1101 (see Figure 6 shown) and a flow guiding device 50 provided at the air outlet of the air duct tube 1101 (see Figure 2 and Figure 3 shown).

[0078] See Figure 6 shown, the air duct tube 1101 is assembled by a non-conductive air duct wall 11a and a conductive cover plate 11b.

[0079] The air duct wall 11a can be a plastic air duct wall. The air duct wall 11a is located on one side of the side plate 10a in the +Y axis direction, on one side of the connecting shell 10b in the -X axis direction, and on one side of the mounting shell 10c in the +Z axis direction.

[0080] The air duct wall 11a is connected to the side plate 10a. Figures 5 to 7 As shown, a buckle 11a1 is provided on the side of the air duct wall 11a away from the mounting shell 10c in the height direction of the image forming device, and a slot 10a1 corresponding to the buckle 11a1 is provided on the side plate 10a. The air duct wall 11a is connected with the slot 10a1 of the side plate 10a through the buckle 11a1.

[0081] The air duct wall 11a is connected to the mounting shell 10c. Figure 2 and Figure 6 As shown, the air duct wall 11a is provided with a first connecting hole 11a2 on one side of the mounting shell 10c in the height direction of the image forming device, and the mounting shell 10c is provided with a first matching hole (not shown in the figure) corresponding to the first connecting hole 11a2. The air duct wall 11a is fixed to the mounting shell 10c by passing screws through the first connecting hole 11a2 and the first matching hole.

[0082] The cover plate 11 b is located on one side of the air duct wall 11 a in the +Y axis direction, and the cover plate 11 b is located between the air duct wall 11 a and the data plate 30 .

[0083] The cover plate 11b may be made of metal. In some examples, the cover plate 11b is a sheet metal part.

[0084] The cover plate 11b is connected to the air duct wall 11a. Figure 6 As shown, the cover plate 11b is fixed on the cover plate 11b by screws.

[0085] The air duct wall 11a is opened toward one side of the cover plate 11b. After the air duct wall 11a and the cover plate 11b are fixed, the cover plate 11b can cover the opening, and the air duct wall 11a and the cover plate 11b form a heat dissipation air duct.

[0086] The cover plate 11b is connected to the connection shell 10b. Figure 5 , Figure 6 and Figure 7 As shown, the cover plate 11b is provided with a second connection hole 11b1, and the connection shell 10b is provided with a third matching hole 10b1 corresponding to the second connection hole 11b1. The cover plate 11b is fixed to the connection shell 10b by screws passing through the second connection hole 11b1 and the third matching hole 10b1.

[0087] In a possible implementation, the projection of the cover plate 11b in the thickness direction of the data board 30 and the projection of the external component 40 in the thickness direction of the data board 30 at least partially overlap. With such a setting, it is convenient for the conductive member 20 to be electrically connected to the cover plate 11b and the external component 40 respectively at the same time.

[0088] The thickness direction of the data board 30 is the Y-axis direction.

[0089] It should be noted that in other examples, without affecting the electrical connection between the conductive member 20 and the cover plate 11b and the external component 40 respectively at the same time, the projection of the cover plate 11b in the thickness direction of the data board 30 and the projection of the external component 40 in the thickness direction of the data board 30 may not overlap.

[0090] In a possible implementation, the data board 30 is connected to the connection shell 10b and the cover plate 11b, and the conductive member 20 is connected to the cover plate 11b. With such a setting, when the conductive member 20 is a grounding member, the data board 30 can be connected to the conductive member 20 through the connection shell 10b and the cover plate 11b, so that the data board 30 can be electrostatically grounded to meet the safety grounding requirements.

[0091] Among them, the data board 30 is connected to the connection shell 10b. Exemplarily, referring to Figure 2 and Figure 7 as shown, the data board 30 is fixed on the connection shell 10b through screws.

[0092] The data board 30 is connected to the cover plate 11b. Exemplarily, referring to Figure 2 、 Figure 6 and Figure 7 as shown, the cover plate 11b includes a support main body 111 and a connection portion 112. The connection portion 112 is located on one side of the support main body 111 in the +Y-axis direction, and the support main body 111 and the connection portion 112 are integrally formed. The data board 30 is fixed on the connection portion 112 through screws.

[0093] The number of the connection portions 112 can be multiple. Exemplarily, the number of the connection portions 112 is two.

[0094] There is a gap between the data board 30 and the support main body 111 in the width direction of the image forming apparatus.

[0095] The conductive member 20 is locked on the cover plate 11b. Exemplarily, the conductive member 20 is fixed on the support main body 111 through screws.

[0096] In a possible implementation, the drainage device 50 discharges the air around the air inlet of the air duct 1101 to dissipate heat from the image forming apparatus.

[0097] The drainage device 50 can be a fan. The duct wall 11a and the side plate 10a enclose an installation opening, which is communicated with the heat dissipation duct, and the fan is inserted into the installation opening.

[0098] Among them, as shown in Figure 5 , Figure 6 and Figure 7 shown, the side plate 10a includes a first side wall 10a2 and a second side wall 10a3, the duct wall 11a includes a third side wall 11a3 and a fourth side wall 11a4, the first side wall 10a2 and the third side wall 11a3 are oppositely arranged in the width direction of the image forming device, the second side wall 10a3 and the fourth side wall 11a4 are oppositely arranged in the height direction of the image forming device, and the first side wall 10a2, the second side wall 10a3, the third side wall 11a3 and the fourth side wall 11a4 enclose the installation opening.

[0099] The fan is inserted into the installation opening along a direction parallel to the side plate 10a. Specifically, the fan is inserted into the installation opening along the +X axis direction.

[0100] One side of the fan in the +Y axis direction abuts against the third side wall 11a3, and the third side wall 11a3 can press the fan tightly.

[0101] The fan exhausts air from the heat dissipation duct, so that the heat inside the image forming device is discharged through the heat dissipation duct.

[0102] Furthermore, as shown in Figure 1 and Figure 8 shown, the housing 100 includes an outer cover 12, the outer cover 12 wraps the duct wall 11a and the side plate 10a, and the outer cover 12 abuts against the fan to limit one side of the fan facing the outer cover 12. With such a setting, the fan can be prevented from detaching from the installation opening.

[0103] In a possible implementation manner, a partition 11c is provided inside the duct 1101 (as shown in Figure 6 shown), and the partition 11c divides the heat dissipation duct inside the duct 1101 into at least two ducts, so that the duct 1101 forms multiple heat dissipation paths.

[0104] Among them, exemplarily, as shown in Figure 9 shown, the partition 11c divides the heat dissipation duct inside the duct 1101 into two ducts, which are the first duct 1102 and the second duct 1103 respectively.

[0105] The air extraction trajectory in the first duct 1102 is like the dotted line L1 in Figure 9 ; the air extraction trajectory in the second duct 1103 is like the dotted line L2 in Figure 10 shown.

[0106] The first air duct 1102 is provided with a first inlet 110a, and the second air duct 1103 is provided with a second inlet 110b. The first inlet 110a faces the first functional module, and the second inlet 110b faces the third functional module.

[0107] The first functional module can be a fixing unit of the image forming apparatus. A first air inlet 10a4 is provided on the side plate 10a (see Figure 8 shown). The first air inlet 10a4 is communicated with the first inlet 110a of the first air duct 1102. When the fan works, the heat generated by the fixing unit is sucked into the first air duct 1102 through the first air inlet 10a4 and the first inlet 110a, and is discharged to the outside of the image forming apparatus through the first air duct 1102.

[0108] The first inlet 110a is located on one side of the air duct wall 11a in the -Y axis direction.

[0109] The third functional module can be a module that generates heat during the operation of the image forming apparatus. In some examples, the third functional module is a power supply board installed in the installation case 10c.

[0110] A second air inlet (not shown in the figure) is provided on the installation case 10c. The second air inlet is communicated with the second inlet 110b of the second air duct 1103. When the fan works, the heat generated by the power supply board is sucked into the second air duct 1103 through the second air inlet and the second inlet 110b, and is discharged to the outside of the image forming apparatus through the second air duct 1103.

[0111] The second inlet 110b is located on one side of the air duct wall 11a in the -Z axis direction.

[0112] Optionally, as Figure 11 shown, the image forming apparatus includes a processing cartridge 31, a transfer belt 32, a paper pickup roller 33, a paper cassette 34, a laser scanning unit 35, a fixing unit, and a discharge roller 38.

[0113] Among them, the number of the processing cartridges 31 is 4, and the 4 processing cartridges 31 respectively correspond to 4 printing colors. The specific structures of the processing cartridges 31 respectively include a photosensitive drum, a charging roller, a developing roller, and a toner cartridge for containing toner of their respective colors.

[0114] The laser scanning unit 35 includes four light paths. The charging rollers of the four processing cartridges 31 are used to charge the surfaces of the four photosensitive drums respectively, and the four light paths of the laser scanning unit 35 respectively emit laser beams to form electrostatic latent images on the surfaces of the photosensitive drums. The developing rollers of the four processing cartridges 31 are used to develop and form toner images of their respective colors on the surfaces of the photosensitive drums.

[0115] The image forming apparatus adopts a secondary transfer method, that is, the photosensitive drum of the processing cartridge 31 transfers the toner image to the transfer belt 32 in sequence, and then the color toner image formed on the transfer belt 32 is secondarily transferred to the paper by the secondary transfer roller 16. The paper pickup roller 33 picks up the paper in the paper cassette 34 one by one, and the paper entering the conveyance path is conveyed to the secondary transfer roller 16 for transfer imaging. The secondary transfer roller 16 conveys the imaged paper to the clamping area of the heating roller 36 and the pressure roller 37 of the fixing unit. The heating roller 36 and the pressure roller 37 are used to fix the toner image on the paper. The heating roller 36 can adopt a ceramic heating method. The heating roller 36 and the pressure roller 37 convey the fixed paper to the discharge roller 38, and the discharge roller 38 discharges the paper, thereby completing the image printing.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An image forming device, comprising a frame and a data board, wherein: including conductive parts; The data board is provided with external components, the frame has a metal piece, the conductive piece is provided between the data board and the frame, and the conductive piece is conductively connected to the metal piece and the external components respectively.

2. The image forming apparatus according to claim 1, wherein: The frame body includes two side panels that are arranged opposite to each other, and the data board is installed on the outer side of one of the two side panels.

3. The image forming apparatus according to claim 2, wherein: The side plate is provided with a first functional module, which is locked to the side plate via a connecting shell, the connecting shell is conductively connected to the side plate, and the conductive member is conductively connected to the connecting shell.

4. The image forming apparatus according to claim 3, wherein: A second functional module is disposed between the data plate and the side plate, and the second functional module includes a non-conductive plastic part and a conductive cover plate; The cover plate is conductively connected to the connection shell, and the conductive member is conductively connected to the connection shell through the cover plate.

5. The image forming device according to any one of claims 1 to 4, characterized in that: The external component is located at a side of the data plate away from the frame body, and a avoidance opening is provided on the data plate, and the conductive member can pass through the avoidance opening to contact the external component.

6. The image forming apparatus according to claim 5, wherein: The conductive member is an elastic member, and the elastic member is in elastic contact with the external component.

7. The image forming apparatus according to claim 4, wherein: The second functional module is an air duct assembly, which includes an air duct pipe and a drainage device arranged at the air outlet of the air duct pipe, and the drainage device discharges the air around the air inlet of the air duct pipe to dissipate heat from the image forming device; The air duct is assembled from a non-conductive air duct wall and a conductive cover plate, a projection of the cover plate in the thickness direction of the data plate at least partially overlaps with a projection of the external component in the thickness direction of the data plate, and the conductive member is locked to the cover plate.

8. The image forming apparatus according to claim 7, wherein: A partition is provided inside the air duct pipe, and the partition divides the inside of the air duct pipe into at least two air ducts, so that the air duct pipe forms a plurality of heat dissipation passages.

9. The image forming apparatus according to claim 4, wherein: The data plate is connected to the connection shell and the cover plate, the conductive member is connected to the cover plate, and the conductive member is a grounding member to electrostatically ground the data plate.

10. The image forming apparatus according to claim 7, wherein: The air duct is snap-connected with the frame.

Images