JP2009098316A - Power supply device and image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce inclination of power supply members that supply power while pressed against a power-supplied body. <P>SOLUTION: The power supply devices (1, 21, 31, 41, 51, 61) include: the power supply members (8, 28) having terminal members (9, 29, 33, 43, 63) movably supported in the direction of terminal movement relative to the power-supplied body (6), and a power supply biasing member (11) that applies force with which the terminal members (9, 29, 33, 43, 63) are constantly moved in the direction in which the terminal members (9, 29, 33, 43, 63) are brought into contact with the power-supplied body (6); and inclination preventing mechanisms (12, 27f, 32+33a+33d, 43a+43d, 53+56, 63c) that prevent the power supply members (3, 52) from tilting in the direction of terminal movement when power source substrates (3, 52) are attached to a frame (2) while the power supply biasing member (11) is compressed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a power feeding device that feeds power to a power-supplied body and an image forming apparatus including the power feeding device.

  Patent Documents 1 and 2 listed below relate to a power feeding device that feeds power to each member disposed inside the image forming apparatus.

  In Patent Document 1 (Japanese Patent Laid-Open No. 2003-195697), when a high voltage power supply substrate (371) is mounted on the image forming apparatus main body, the substrate is formed by expansion and contraction of a spring contact (377) on the image forming apparatus main body side. In the image forming apparatus in which the contacts (370, 380) of (371) are conducted, the attachment member (387) is attached to the image forming apparatus main body in order to prevent the substrate from being bent due to the force of the spring and incomplete conduction. And a square hole (383) is provided in the vicinity of the contact (370, 380) of the substrate (371), and the attachment member (387) is attached to the square hole (383) so that the vicinity of the spring contact (377a to 377l) is obtained. The fixing technique is described.

Patent Document 2 (Japanese Patent Laid-Open No. 2005-49553) discloses a high-voltage power source (51) to a developing roller (11), a charging roller (10), a primary transfer roller (19), a secondary transfer roller (8a), and the like. In the conductive plate (60) for supplying power to the power-supplied member, the conductive pin (61) that conducts the conductive plate (60) and the power-supplied member is pressed by the conductive spring (69) to ensure conduction, A technique is described in which a conductive pin (62) that conducts a conductive plate (60) and a high-voltage power supply (51) is pressed by a conductive spring (70) to ensure conduction.
Further, in Patent Document 2, the other end of an insulated wire (64) having one end fixed to a connection terminal (102) of a high-voltage power supply (51) is connected to the first conductive spring (69). Describes a technique for electrically connecting the high-voltage power source (51) and the power-supplied member.

Further, in Patent Document 2, a conductive plate (112) is brought into contact with an end portion of a first conductive spring (69), and one end of the conductive plate (112) is connected to a connection terminal (102) of a high-voltage power source (51). A technique is described in which the high-voltage electric wire (51) and the power-supplied member are made conductive by screwing the other end of the insulation-coated electric wire (64) fixed to the wire.
Further, in Patent Document 2, instead of the conductive spring (69, 70), the conductive pin (61, 62) is urged by a plate spring-like conductive urging plate (132), and the high pressure is applied. A technique for electrically connecting a power source (51) and a power-supplied member is described.

Japanese Patent Laid-Open No. 2003-195697 (Abstract, FIG. 1) JP-A-2005-49553 (“0234”, “0272”, “0277” to “0278”, “0283” to “0285”, “0293” to “0297”, FIG. 7, FIG. 19, FIG. 20, FIG. 23)

  This invention makes it a technical subject to reduce the inclination at the time of the assembly of the electric power feeding member which is pressed against a to-be-powered body, and supplies electric power, and to improve an assembly property.

In order to solve the technical problem, a power feeding device according to claim 1 is provided.
A power board, a frame on which the power board is supported,
A terminal holding portion formed on the frame;
A terminal member that is supported by the terminal holding unit and electrically connected to the power supply board and supplies power to the power-supplied body, and is supported so as to be movable in a terminal moving direction in contact with the power-supplied body. A power supply member comprising: a terminal member; and a power supply biasing member that applies a force to constantly move the terminal member in a direction in which the terminal member is in contact with the power-supplied body.
An inclination preventing mechanism for preventing the power supply member from being inclined with respect to the terminal moving direction when the power supply board is attached to the frame body while the power supply urging member is compressed;
It is provided with.

The invention according to claim 2 is the power supply device according to claim 1,
The inclination prevention configured by an urging member holding body that holds an end portion of the power supply urging member on the power supply substrate side and is supported by the end portion holding portion so as to be movable along the terminal moving direction. mechanism,
It is provided with.
According to a third aspect of the present invention, in the power feeding device according to the first aspect,
An outer peripheral surface of the power supply urging member formed on at least the inner peripheral surface of the end portion on the power supply board side of the terminal holding portion formed in a cylindrical shape supported in a state where the terminal member is accommodated therein. The tilt prevention mechanism configured by a protrusion that contacts the protrusion and a notch corresponding to the protrusion on the terminal member,
It is provided with.

According to a fourth aspect of the present invention, in the power feeding device according to the first aspect,
The terminal holding part formed by a cylindrical wall having an inner diameter corresponding to the outer diameter of the power supply urging member, a notch part formed in the cylindrical wall, and an inside of the cylindrical terminal holding part A guided portion formed on the terminal member supported in the accommodated state and guided to the inner surface of the cylindrical wall, and a protrusion formed on the guided portion and corresponding to the notch An inclination prevention mechanism comprising:
It is provided with.
The invention according to claim 5 is the power feeding device according to claim 1,
A guided portion formed on the terminal member supported in a state of being accommodated in the terminal holding portion formed in a cylindrical shape and guided to the inner surface of the cylindrical wall, and a hook-like shape on the guided portion And an urging member accommodating portion that is supported in a state in which a power-supplied member-side end portion of the urging member for electric power feeding is accommodated therein,
It is provided with.

In order to solve the technical problem, the power feeding device according to claim 6 is:
A power supply board;
A frame on which the power supply substrate is supported;
A terminal holding portion formed on the frame;
A terminal member that is supported by the terminal holding unit and electrically connected to the power supply board and supplies power to the power-supplied body, and is supported so as to be movable in a terminal moving direction in contact with the power-supplied body. A power supply member comprising: a terminal member; and a power supply biasing member that applies a force to constantly move the terminal member in a direction in which the terminal member is in contact with the power-supplied body.
The power supply urging member is formed by a spring in which a wire is spirally wound,
The power supply substrate has a jig convex through hole,
The jig convex portion through-hole penetrates the convex portion of the jig having a convex portion inserted into the inner diameter of the power supply biasing member in a state before the power supply board is attached to the frame body, The jig is removed after the power supply board is attached to the frame.
A power supply apparatus characterized by that.

The invention according to claim 7 is the power feeding device according to claim 1,
An urging member penetrating support portion formed in the terminal member and penetrating in the axial direction and deformable in the axial direction while passing through the urging member for power feeding constituted by a spring in which a wire is spirally wound. The tilt prevention mechanism,
It is provided with.

In order to solve the technical problem, the power feeding device according to claim 8 is:
A power supply board;
A frame on which the power supply substrate is supported;
A power supply member holding portion formed on the frame;
A power supply member that is supported by the power supply member holding portion and is electrically connected to the power supply board and supplies power to the power-supplied body.
An inclination preventing mechanism for preventing the power supply member from being inclined with respect to the expansion / contraction direction when the power supply board is attached to the frame body while the power supply member is compressed;
A power supply apparatus comprising:

In order to solve the technical problem, an image forming apparatus according to claim 9,
An image carrier,
A charger to which a charging voltage for charging the surface of the image carrier is applied;
A latent image forming apparatus for forming a latent image on the surface of the image carrier;
A developing device as a power supply to which a developing voltage for developing a latent image on the surface of the image holding body into a visible image is applied;
The power supply device according to any one of claims 1 to 8, which supplies power to the developing device,
A transfer device to which a transfer voltage for transferring the visible image to a medium is applied;
A fixing device for fixing the visible image transferred to the medium;
It is provided with.

According to the first aspect of the present invention, it is possible to reduce the inclination of the power feeding member during assembly of the power feeding device, as compared with the case where the configuration of the present invention is not provided.
According to the second aspect of the present invention, it is possible to reduce the inclination of the power supply member when the power supply device is assembled on the power supply substrate side.
According to the third aspect of the present invention, it is possible to improve the slidability as compared with the case where contact is made on the entire outer peripheral surface of the power supply urging member.
According to the fourth aspect of the present invention, it is possible to improve the slidability as compared with the case where the entire surface of the cylindrical wall is in contact with the power supply urging member.

According to the fifth aspect of the present invention, it is possible to reduce the inclination of the power feeding member when the power feeding device is assembled on the power-supplied body side.
According to the invention described in claim 6, it is possible to reduce the inclination of the power supply member when the power supply device is assembled on the power supply substrate side.
According to the seventh aspect of the present invention, compared to the case where a rigid body is used as the support portion, the biasing member penetrating support portion can be lengthened, and compared with the case where the configuration of the present invention is not provided It is possible to reduce the inclination of the power supply member when assembling the apparatus.
According to the eighth aspect of the present invention, the configuration can be simplified and the inclination of the power feeding member during assembly of the power feeding device can be reduced as compared with the case where the configuration of the present invention is not provided.
According to the ninth aspect of the present invention, it is possible to provide an image forming apparatus with better assemblability as compared with the case where the configuration of the present invention is not provided.

Next, specific examples (examples) of the embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following examples.
In order to facilitate understanding of the following description, in the drawings, the front-rear direction is the X-axis direction, the left-right direction is the Y-axis direction, the up-down direction is the Z-axis direction, and arrows X, -X, Y, -Y, The direction indicated by Z and -Z or the indicated side is defined as the front side, the rear side, the right side, the left side, the upper side, the lower side, or the front side, the rear side, the right side, the left side, the upper side, and the lower side, respectively.
In the figure, “•” in “○” means an arrow heading from the back of the page to the front, and “×” in “○” is the front of the page. It means an arrow pointing from the back to the back.

FIG. 1 is an explanatory view of an image forming apparatus to which a developer supply container of Example 1 of a powder container according to the present invention is mounted.
In FIG. 1, an automatic document feeder U2 is placed on the upper surface of a transparent document table PG at the upper end of an image forming apparatus U1 constituted by a copying machine.
The automatic document feeder U2 has a document feed tray TG1 as an example of a document storage unit on which a plurality of documents Gi to be copied are stacked. Each of the plurality of documents Gi placed on the document feed tray TG1 is sequentially passed through a copy position on a transparent document table PG and discharged to a document discharge tray TG2 as an example of a document discharge unit. Has been. The automatic document feeder U2 can be rotated with respect to the copying machine U1 by an opening / closing shaft (not shown) extending in the left-right direction provided at the rear end thereof, and an operator places the document Gi on the document table PG by hand. In this case, it is turned upward.

The image forming apparatus U1 has an operation unit UI for a user to input an operation command signal for starting copying.
The document reading device IIT disposed below the transparent document table PG on the upper surface of the image forming apparatus U1 includes an exposure system registration sensor Sp and an exposure optical system A as an example of an exposure system detection device.
The movement and stop of the exposure optical system A are controlled by the detection signal of the exposure system registration sensor Sp, and are always stopped at the reference position.
Reflected light from the document Gi passing through the exposure position on the upper surface of the transparent document table PG by the automatic document feeder U2 or from the document Gi manually placed on the transparent document table PG passes through the exposure optical system A. Then, it is converted into red R, green G, and blue B electrical signals by the solid-state imaging device CCD.

The image processing unit IPS temporarily converts the red R green G blue B electrical signals input from the solid-state imaging device CCD into K, Y, M, C (black, yellow, magenta, cyan) image information. The image information is output to the latent image forming apparatus drive circuit DL as image information for forming a latent image at a predetermined time.
The latent image forming device drive circuit DL outputs a latent image forming device drive signal to the latent image forming device ROS according to the input image information.

  The photoconductor PR as an example of the image carrier rotates in the direction of the arrow YA, and its surface is uniformly charged by the charge corotron CC as an example of the charger, and then at the latent image writing position Q1. The latent image forming apparatus ROS performs exposure scanning with a laser beam L as an example of latent image forming light to form an electrostatic latent image. In the case of forming a multicolor image, electrostatic latent images corresponding to four color images of K, Y, M, and C (black, yellow, magenta, and cyan) are sequentially formed. In the case of a single color image, K (black). Only the electrostatic latent image corresponding to the image is formed.

The surface of the photoreceptor PR on which the electrostatic latent image is formed rotates and moves sequentially through the development areas Q2k, Q2y, Q2m, Q2c, and the primary transfer area Q3.
The developing device G includes four color developing devices GK, GY, and K (black, yellow, magenta, cyan) sequentially arranged from the upstream side to the downstream side in the rotation direction of the photoconductor PR. GM, GC. The developing devices GK, GY, GM, and GC of the respective colors have developing rolls GRk, GRy, GRm, and GRc that convey toner to the developing regions Q2k, Q2y, Q2m, and Q2c, and the developing regions Q2k, Q2y, and GRc. The electrostatic latent image on the photoconductor PR that passes through Q2m and Q2c is developed into a visible image.

Below the photoconductor PR, an intermediate transfer belt B as an example of an intermediate transfer member, a belt drive roll Rd as an example of an intermediate transfer member drive member, a tension roll Rt as an example of a tension acting member, and a meander prevention member A plurality of intermediate transfer member support members Rd + Rt + Rw + Rf + T2a including a walking roll Rw as an example position, an idler roll Rf as an example of a driven member, and a backup roll T2a as an example of a secondary transfer counter member; a primary transfer roll T1; An intermediate transfer member support frame (not shown) that supports them is configured.
The intermediate transfer belt B is supported by the intermediate transfer member support member Rd + Rt + Rw + Rf + T2a so as to be rotatable in the arrow YB direction.

When a multicolor image is formed, an electrostatic latent image of the first color is formed at the latent image writing position Q1, and developed into a visible image Tn of the first color in the development region Q2. The visible image Tn is electrostatically primarily transferred onto the intermediate transfer belt B by the primary transfer roll T1 when passing through the primary transfer region Q3. Thereafter, in the same manner, the visible images Tn of the second color, the third color, and the fourth color are sequentially superimposed on the intermediate transfer belt B carrying the visible image Tn of the first color, and are primarily transferred. In addition, a multi-color multiple visible image is formed on the intermediate transfer belt B.
In the case of forming a single color image, only one developing unit is used, and a single color visible image is primarily transferred onto the intermediate transfer belt B.
After the primary transfer, the surface of the photoconductor PR is cleaned by a photoconductor cleaner CL1 as an example of an image carrier cleaning device after the residual developer is neutralized by the static eliminator JR.

Below the backup roll T2a, a secondary transfer roll T2b as an example of a secondary transfer member is disposed so as to be movable between a position separated from the backup roll T2a and a position in contact therewith. The backup roll T2a and the secondary transfer roll T2b constitute a secondary transfer device T2. A secondary transfer region Q4 is formed by a contact region between the backup roll T2a and the secondary transfer roll T2b.
A secondary transfer voltage having a polarity opposite to the charging polarity of the toner used in the developing device G is supplied from the power supply circuit E to the secondary transfer roll T2b, and the power supply circuit E is controlled by the control unit C.

A recording sheet S as an example of a medium accommodated in a paper feed tray TR1 or TR2 as an example of a paper supply container is taken out by a pickup roll Rp as an example of a medium takeout member at a predetermined time. The recording sheets S picked up by the pickup roll Rp are separated one by one by a separating roll Rs as an example of a medium spreading member. The recording sheet S separated by the separating roll Rs is conveyed to a registration roll Rr as an example of a medium feeding timing adjusting member by a conveying roll Ra as an example of a plurality of medium conveying members in the sheet feeding path SH1. The recording sheet S transported to the registration roll Rr is moved from the pre-transfer guide member SG1 to 2 with the timing when the primary transferred multiple visible image or single color visible image moves to the secondary transfer region Q4. It is conveyed to the next transfer area Q4.
In the secondary transfer area Q4, the secondary transfer unit T2 electrostatically secondary-transfers the visible image on the intermediate transfer belt B onto the recording sheet S. The residual developer is removed from the intermediate transfer belt B after the secondary transfer by a belt cleaner CL2 as an example of an intermediate transfer body cleaner.

  The secondary transfer roll T2b and the belt cleaner CL2 are disposed so as to be freely separated from (contacted with and separated from) the intermediate transfer belt B. When a multicolor image is formed, the final color can be unfixed. The visual image is separated from the intermediate transfer belt B until it is primarily transferred to the intermediate transfer belt B. A secondary transfer roll cleaner CL3 as an example of a secondary transfer member cleaner for cleaning the secondary transfer roll T2b moves away from and in contact with the intermediate transfer belt B together with the secondary transfer roll T2b. .

  The recording sheet S on which the visible image is secondarily transferred is transported to the fixing region Q5 by a post-transfer sheet guide SG2 as an example of a post-transfer guide member and a sheet transport belt BH as an example of a medium transport member. The fixing region Q5 is a region where a heating roll Fh as an example of a heating rotating member of the fixing device F and a pressure roll Fp as an example of a heating rotating member are in pressure contact, and the recording sheet S passing through the fixing region Q5 is fixed. Heat fixing is performed by the apparatus F. On the outer peripheral surface of the heating roll Fh, the medium release agent is applied by the oil application device Fa on the upstream side of the fixing region Q5 in the rotation direction. Around the heating roll Fh and the pressure roll Fp, a cleaning device Fb as an example of a fixing device cleaner that cleans the surface of the heating roll Fh is disposed in contact with the downstream side of the fixing region Q5 in the rotation direction. Yes.

In FIG. 1, a discharge medium transport path SH2 and a reversal medium transport path SH3 are provided on the downstream side of the fixing region Q5, and a switch GT1 is provided at the branch point. The recording sheet S conveyed to the discharge medium conveyance path SH2 is conveyed to a sheet discharge roller Rh as an example of a medium discharge member by a plurality of conveyance rollers Ra, and is formed at the upper end portion of the image forming apparatus U1. The paper is discharged from Ka to a paper discharge tray TR3 as an example of a medium discharge unit.
A circulation medium conveyance path SH4 is connected to the reversal medium conveyance path SH3, and a medium guiding member GT2 formed of a thin plate member, so-called Mylar, is provided at the connection portion. The medium guiding member GT2 passes the recording sheet S conveyed through the reversing medium conveyance path SH3 from the switch GT1 as it is, and once conveyed, the conveyance direction is reversed and conveyed and switched back. The recording sheet S is directed toward the circulation medium transport path SH4. The recording sheet S conveyed to the circulation medium conveyance path SH4 is retransmitted to the transfer area Q4 through the sheet feeding path SH1. A medium transport path SH is constituted by the elements indicated by the symbols SH1 to SH4.

FIG. 2 is a diagram showing a state in which each member in a portion surrounded by a broken line in FIG. 1 is removed.
FIG. 3 is an overall explanatory view of the power feeding apparatus according to the first embodiment of the present invention.
FIG. 4 is an enlarged explanatory view of the main part of the power feeding apparatus according to the first embodiment of the present invention, FIG. 4A is a side sectional view of the power feeding apparatus, FIG. 4B is a perspective explanatory view of the main part of the power feeding apparatus, and FIG. FIG.
2 and 3, the power feeding device 1 is disposed on the back side portion of the main body of the image forming apparatus U1. The power supply apparatus 1 includes a plate-shaped power supply frame 2 and a power supply substrate 3 as an example of a frame. At the four corners of the power supply frame 2, a plurality of board attachment portions 4 for fixing and attaching the power supply board 3 are formed protruding toward the power supply board 3. At the rear end (−X end) of the board attachment portion 4, a screwing hole 4 a that opens backward (−X direction) and is screwed with a screw 5 is formed. A terminal holding portion 7 is formed in the power supply frame 2 at a position corresponding to the charge corotron CC, the developing rolls GRk, GRy, GRm, GRc, the primary transfer roll T1, and the static eliminator JR. Has been.
4A, the terminal holding part 7 has a cylindrical terminal mounting part 7a formed so as to protrude toward the power supply substrate 3 side, and a terminal accommodating recessed part 7b formed so as to be recessed in the power supply frame 2. In FIG. A cylindrical inner wall portion of the terminal mounting portion 7a is connected to the terminal accommodating recess 7b. A terminal through hole 7d penetrating to the front side (+ X side) opposite to the power supply substrate 3 is formed at the center of the bottom surface 7c of the terminal receiving recess 7b.

A power supply member 8 is mounted in the terminal receiving recess 7b. The power supply member 8 includes a terminal member 9 fitted in the terminal accommodating recess 7b and a spring member 11 as an example of a power supply urging member. In addition, the terminal member 9 and the spring member 11 of Example 1 are comprised with the electroconductive member.
The terminal member 9 is formed integrally with a disk-shaped disk portion 9a having an outer diameter corresponding to the inner diameter of the terminal receiving recess 7b, and the front surface of the disk portion 9a, and penetrates the terminal through hole 7d. A contact terminal portion 9b that protrudes outward, and a columnar spring one end support portion 9c that is integrally formed on the rear surface of the disc portion 9a and has a smaller diameter than the outer diameter of the disc portion 9a. .
The spring one end support portion 9c is inserted into a central portion on one end side of the spring member 11 having a shape in which a wire is wound spirally, and one end of the spring member 11 is in contact with the disk portion 9a.

A biasing member holding body 12 as a tilt prevention mechanism that is formed in a cylindrical shape and supports the other end portion of the spring member 11 is mounted on the cylindrical terminal mounting portion 7a from the power supply substrate 3 side.
In FIG. 4, the urging member holding body 12 is integrally formed with a cylindrical wall 12a having an inner diameter corresponding to the outer diameter of the terminal mounting portion 7a and a rear end portion (−X end portion) of the cylindrical wall 12a. In addition, a ring-shaped spring other end support portion 12b having an inner diameter smaller than that of the cylindrical wall 12a and a part in the circumferential direction of the cylindrical wall 12a and the spring other end support portion 12b are cut out by a predetermined width. It has a notch 12c.
The other end portion of the spring member 11 is attached to the inside of the ring-shaped spring other end support portion 12b via the notch portion 12c. At this time, as shown in FIG. 4B and FIG. 4C, the other end of the spring member 11 is on the −X surface side from the one surface side that is the + X surface side of the spring other end support portion 12 b through the notch portion 12 c. The other end support portion 12b extends to the other surface side and is held in a state of being sandwiched between the spirally wound wire rods on the other end side of the spring member 11. The urging member holding body 12 is supported by the cylindrical wall 12a and the terminal mounting portion 7a so as to be slidable in the expansion / contraction direction of the spring member 11, that is, the front-rear direction (X-axis direction).

  At positions corresponding to the board mounting portions 4 of the power supply frame 2 at the four corners of the power supply board 3, screw fixing through holes 3a through which the screws 5 pass when the power supply board 3 is fixed and attached are formed. Yes. The power supply board 3 comes into contact with the power supply member 8 when the power supply member 8 and the power supply board 3 are connected to positions corresponding to the positions of the plurality of power supply members 8 on the front surface 3b of the power supply board 3, respectively. A connection terminal 13 for supplying power from is formed. In addition, the power supply board 3 according to the first embodiment is configured by a high-voltage power supply circuit. The power supply board 3 includes the power supply bodies 6 (CC, GRk, GRy, GRm, GRc, T1, Elements (not shown) such as a transformer (transformer), a resistor, and a capacitor (capacitor) that generate a voltage to be fed to JR) are arranged.

  In FIG. 2, the power supply member 8 has a position corresponding to the position of the power supply member 8 at the rear portion (−X portion) of each of the power supplied bodies 6 (CC, GRk, GRy, GRm, GRc, T1, JR). A power-supplied terminal 14 that is in contact and is fed from the power feeding device 1 is disposed.

(Operation of Example 1)
5A and 5B are diagrams for explaining the operation of the first embodiment of the present invention. FIG. 5A is a diagram showing a state immediately after the start of the attachment operation of the power feeding device, and FIG. FIG. 5C is a diagram illustrating a state in which the power-supplied member is moved from the state of FIG.
In Example 1 having the above-described configuration, in FIG. 5, when the attachment operation of the power feeding device 1 is started, first, the biasing member in which the terminal member 9 is inserted into the terminal holding portion 7 and the spring member 11 is mounted. The holding part 12 is attached to the terminal attaching part 7a and the state shown in FIG. 5A is obtained. Next, as shown in FIG. 5A, the power supply board 3 is moved from the rear side (−X direction) of the power supply frame 2 to the direction in which the power supply frame 2 is pushed, that is, the front side (+ X direction).

  When the power supply board 3 is pushed forward (+ X direction) from the position shown in FIG. 5A, the connection terminal 13 portion of the power supply board 3 comes into contact with the other end of the spring member 11 and is electrically connected. When the power supply board 3 is pushed further forward (+ X direction) from this state, the spring member 11 is pushed into the power supply board 3 and starts elastic deformation. At this time, the terminal member 9 receives the force biased from the elastically deformed spring member 11, and is fixed in a state where the front surface (+ X surface) of the disk portion 9a is biased to the bottom surface 7c of the terminal mounting portion 7a. Is done. At this time, one end of the spring member 11 is supported by the spring one end support portion 9c of the terminal member 9, and the other end is held by the urging member holding body 12 which is guided by the outer wall of the terminal attachment portion 7a and slides. Therefore, it is elastically deformed linearly without being bent while following the shape of the inner wall of the terminal accommodating recess 7b. In this state, the power supply device 1 is assembled by fixing the power supply substrate 3 to the power supply frame 2 with the screws 5 that pass through the screw fixing through holes 3a and are fixed to the screw fixing holes 4a.

  5B and 5C, when the power-supplied member is attached in a state in which the power supply apparatus 1 is assembled to the image forming apparatus U, the power-supplied terminal 14 comes into contact with the contact terminal portion 9b and the elastic force of the spring member 11 is obtained. The terminal member 9 is pushed in against this. That is, the elastic force of the spring member 11 is increased, and the terminal member 9 is pressed against the power-supplied terminal 14 and is held in a state where it is reliably in contact. As a result, power is supplied from the power supply substrate 3 to the power-supplied member 6 via the connection terminal 13, the spring member 11, the terminal member 9, and the power-supplied member 14.

FIG. 6 is an explanatory diagram of an image forming apparatus according to a second embodiment of the present invention, FIG. 6A is an enlarged explanatory diagram of the power supply apparatus according to the second embodiment, FIG. 6B is a perspective explanatory diagram of a terminal member according to the second embodiment, and FIG. 6B is a cross-sectional view taken along line VIC-VIC in FIG. 6B, FIG. 6D is a cross-sectional view taken along line VID-VID in FIG. 6A, and FIG. 6E is a cross-sectional view taken along line VIE-VIE in FIG.
Next, the second embodiment of the present invention will be described. In the description of the second embodiment, the same reference numerals are given to the components corresponding to the components of the first embodiment, and the detailed description thereof will be given. Omitted.
The second embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.
6A, FIG. 6D, and FIG. 6E, in the electric power feeder 21 of Example 2, the terminal holding part 7 has the cylindrical terminal accommodation recessed part 27b instead of the terminal accommodation recessed part 7b of the said Example 1. FIG. . An opening 27e is formed at the rear end (−X end) of the terminal accommodating portion 27b, and three spring support protrusions 27f projecting inward are provided in the opening 27e in the circumferential direction and the like. It is formed at intervals. The inner diameter of the opening 27e is formed larger than the outer diameter of the spring member, and the three spring support protrusions 27f have the outer peripheral surface of the spring member 11 at the tips of the three spring support protrusions 27f. It is formed so as to be inscribed.

In FIG. 6A, FIG. 6B, and FIG. 6C, the terminal member 29 of Example 2 is comprised by the electroconductive member similarly to the said Example 1, and the bottom face abutting part 29a corresponding to the cylindrical part 9a of the said Example 1 and As in the first embodiment, the contact terminal portion 29b and the spring one end support portion 29c formed integrally with the bottom surface abutting portion 29a are provided. In FIG. 6C, the bottom surface abutting portion 29a is cut out in a planar shape at three positions on the disk so that it can pass through the opening 27e of the terminal accommodating portion 27b.
As in the first embodiment, in the terminal member 29 of the second embodiment, the spring one end support portion 29c is inserted into the central portion on the one end side of the spring member 11, and one end of the spring member 11 contacts the bottom surface abutting portion 29a. ing. The terminal member 29 and the spring member 11 constitute a power supply member 28, and the power supply member 28 is attached to the terminal accommodating recess 27b.

(Operation of Example 2)
In the power supply device 21 according to the second embodiment having the above-described configuration, when the power supply member 28 is attached to the terminal accommodating recess 27b, the power supply member 28 is inserted from the rear (−X direction) of the terminal accommodating recess 27b. At this time, the terminal member 29 is inserted by moving the notch portion of the bottom surface abutting portion 29a to a position corresponding to the spring support projection 27f so as not to contact the spring support projection 27f. Is mounted in the terminal accommodating recess 27b, the spring member 11 is held in a state where the outer periphery is restrained and supported by the three spring support protrusions 27f of the opening 27e.
Therefore, when the power supply board 3 is attached, one end of the spring member 11 is supported by the spring one end support portion 29c of the terminal member 29, and the other end side is held by the three spring support protrusions 27f at the opening portion 27e. ing. That is, the power feeding device 21 is assembled in a state in which the spring member 11 is bent and is not easily bent and is elastically deformed along the mounting direction of the power supply substrate 3. Further, the spring member 11 is not supported on the entire outer surface, but is supported by the three spring support protrusions 27f, so that the slidability when the terminal member 29 and the spring member 11 are expanded and contracted is ensured.

FIG. 7 is an explanatory diagram of a power feeding device according to a third embodiment of the present invention, FIG. 7A is an enlarged explanatory diagram of the power feeding device according to the third embodiment, FIG. 7B is a perspective explanatory diagram of a terminal member according to the third embodiment, and FIG. 7B is a cross-sectional view taken along the line VIID-VIID in FIG. 7A, and FIG. 7E is a view taken from the arrow VIIE in FIG. 7A.
Next, the third embodiment of the present invention will be described. In the description of the third embodiment, the same reference numerals are given to the components corresponding to the components of the first embodiment, and the detailed description thereof will be given. Omitted.
The third embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.

7A, FIG. 7D, and FIG. 7E, in the electric power feeder 31 of Example 3, the terminal holding part 32 is replaced with the terminal attachment part 7a and the terminal accommodation recessed part 7b of Example 1, and the terminal attachment part 33 and the terminal accommodation recessed part. 34. The terminal attachment portion 33 corresponds to the outer diameter of the spring member 11 and extends in the radial direction from the peripheral surface of the rear cylindrical portion 33a where the spring member 11 is fitted with almost no gap, and the expansion / contraction direction of the spring member 11 And three groove-like rear cutouts 33b extending in the direction of. The terminal accommodating recess 34 has a front cylindrical portion 34a and a front cutout portion 34b connected to the rear cylindrical portion 33a and the rear cutout portion 33b.
7A, 7B, and 7C, the terminal member 36 according to the third embodiment is an example of a guided portion that is formed to have an outer diameter equivalent to the inner diameter of the cylindrical portions 33a and 34a of the terminal holding portion 32 and fits almost without gaps. As a disk portion 36a, and a contact terminal portion 36b and a spring one end support portion 36c similar to those of the terminal member 9 of the first embodiment. The disc portion 36a is formed with a projection 36d that protrudes outward from the disc portion 36a, corresponding to the three notches 33b and 34b.
The terminal member 36 and the spring member 11 constitute the power supply member 11 + 36 of the third embodiment. Further, the terminal holding portion 32 having the cylindrical portions 33a and 34a and the spring member 11 constitute an inclination preventing mechanism 32 + 11 of the third embodiment.

(Operation of Example 3)
In the power feeding device 31 of Example 3 having the above-described configuration, when the power feeding device 31 is assembled, the protrusion 36d of the terminal member 36 fits into the notches 33b and 34b when the power feeding member 11 + 36 is attached to the terminal holding portion 32. Are inserted and accommodated in the terminal holding portion 32 with the rotational position held. At this time, the disc part 36a and the spring member 11 of the terminal member 36 are inserted into the terminal holding part 32 with no gap therebetween. That is, the disc portion 36a and the spring member 11 are restricted from being inclined with respect to the spring expansion / contraction direction by the terminal holding portion 32 fitted without a gap. By attaching the power supply board 3 in this state, the power feeding device 31 is assembled in a state in which the spring member 11 and the disc part 36a are not easily inclined.
In addition, compared with the case where the entire circumferential surface of the spring member 11 is in contact with the inner surface of the cylindrical portion 33a + 34a, the contact area is reduced at the three cutout portions 33b and 34b. Slidability is ensured. Further, even if the outer diameter of the disc portion 36a is set to be equal to the inner diameter of the front cylindrical portion 34a, the terminal member 36 does not fall off to the front side due to the protruding portion 36d.

FIG. 8 is an explanatory view of a power feeding device according to a fourth embodiment of the present invention, FIG. 8A is an enlarged explanatory view of a main part of the power feeding device, and FIG. 8B is a perspective explanatory view of a power feeding member.
Next, a description will be given of a fourth embodiment of the present invention. In the description of the fourth embodiment, the same reference numerals are given to the components corresponding to the components of the first embodiment, and a detailed description thereof will be given. Omitted.
The fourth embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.

In FIG. 8, in the power feeding device 41 of the fourth embodiment, the terminal member 43 of the power feeding member 42 includes the same contact terminal portion 43 b and spring one end support portion 43 c as the terminal member 9 similar to the first embodiment, and the terminal holding portion 7. A disc part 43a guided by the inner surface of the disc part 43a, and a cylindrical and bowl-shaped biasing member accommodating part 43d extending rearward from the outer periphery of the disc part 43a. Therefore, in the terminal member 43 of Example 4, the urging member accommodating space 43e in which one end of the spring member 11 is supported is formed between the spring one end supporting portion 43c and the urging member accommodating portion 43d.
The terminal member 43 and the spring member 11 constitute a power supply member 42 according to the fourth embodiment, and the disc portion 43a and the biasing member accommodating portion 43d constitute a tilt prevention mechanism 43a + 43d according to the fourth embodiment. Yes.

(Operation of Example 4)
In the power supply device 41 according to the fourth embodiment having the above-described configuration requirements, when the power supply device 41 is assembled, the power supply member 42 is assembled by attaching one end of the spring member 11 to the biasing member accommodating space 43e of the terminal member 43. Thus, the power feeding member 42 is inserted and attached to the terminal holding portion 7. In this state, since the one end side of the spring member 11 is supported in a fixed state, the spring member 11 is inclined and less likely to fall than when the biasing member accommodating portion 43d is not formed. ing. By attaching the power supply board 3 in this state, the power feeding device 31 is assembled in a state where the spring member 11 and the terminal member 43 are not easily inclined.

FIG. 9 is an explanatory diagram of a power feeding device according to a fifth embodiment of the present invention, FIG. 9A is an enlarged explanatory diagram of a main part of the power feeding device, and FIG. 9B is an explanatory diagram of a connection terminal.
Next, the fifth embodiment of the present invention will be described. In the description of the fifth embodiment, the same reference numerals are given to the components corresponding to the components of the first embodiment, and the detailed description thereof will be given. Omitted.
The fifth embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.

In FIG. 9, in the power supply device 51 of the fifth embodiment, a jig convex through hole 53 is formed on the power supply substrate 52 corresponding to each power supply member 8, and an edge of the jig convex through hole 53 is formed. An annular connection terminal 54 is formed. The connection terminal 54 is electrically connected to the other end of the spring member 11 of the power supply member 8, and a wiring 54 a for supplying power is connected to the connection terminal 54. A jig 56 for assembling the power supply device 51 is disposed behind the power supply substrate 52. The jig 56 has a convex portion 56 a that can penetrate the jig convex portion through hole 53.
The jig convex part through hole 53 and the jig 56 constitute an inclination preventing mechanism 53 + 56 of the fifth embodiment.

(Operation of Example 5)
In the power feeding device 51 according to the fifth embodiment having the above-described configuration, the power feeding member 8 is attached to the power feeding frame 2 when the power feeding device 51 is assembled. Next, the jig 56 is held from the rear surface of the power supply substrate 52, that is, from the side opposite to the power feeding frame 2, with the convex portion 56 a penetrating the jig convex portion through hole 53. In this state, the power supply substrate 52 is attached to the power supply frame 2 in a state where the convex portion 56a is inserted in the spring member 11 in the axial direction and the inclination and the fall of the spring member 11 are restricted. After the power supply substrate 52 is attached to the power supply frame 2 and the power supply device 51 is assembled, the power supply device 51 is manufactured by removing the jig 56.

FIG. 10 is an explanatory diagram of a power feeding device according to a sixth embodiment of the present invention, FIG. 10A is an explanatory diagram of a state before the power supply board is attached, FIG. 10B is an explanatory diagram of a state where the power supply board is attached, and FIG. It is explanatory drawing of the state with which the to-be-powered member was mounted | worn.
Next, the sixth embodiment of the present invention will be described. In the description of the sixth embodiment, the same reference numerals are given to the components corresponding to the components of the first embodiment, and a detailed description thereof will be given. Omitted.
The sixth embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.

In FIG. 10, in the power feeding device 61 of the sixth embodiment, the terminal member 63 of the power feeding member 62 has the same disk portion 63a and contact terminal portion 63b as those of the first embodiment, and the rear of the disk portion 63a. The biasing member penetration support part 63c which penetrates the spring member 11 to an axial direction is formed. The urging member penetration support portion 63c is configured by a combination of a plurality of slidable members, and is deformed to a contracted state by being pushed from an extended state. In Example 6, the urging member penetration support portion 63c is set shorter than the spring member 11 in the natural length state.
The terminal member 63 and the spring member 11 constitute the power supply member 62 of Example 6, and the biasing member penetration support part 63c constitutes the tilt prevention mechanism 63c of Example 6.

(Operation of Example 6)
In the power supply device 61 of Example 6 having the above-described configuration, the spring member 11 is attached to the terminal accommodating portion 7b with the urging member penetrating support portion 63c passing therethrough, and the inclination and falling of the spring member 11 are restricted. 10B, in this state, the power supply board 3 is mounted and the power feeding device 61 is assembled. 10C, when the power-supplied terminal 14 of the power-supplied body 6 (CC, GRk, GRy, GRm, GRc, T1, JR) comes into contact with the power-feeding device 61, the spring member 11 and the urging member penetration support portion 63c are both The terminal member 63 is deformed and is reliably energized in a state where the terminal member 63 is pressed against the power-supplied terminal 14 side.

FIG. 11 is an explanatory diagram of a power feeding device according to a seventh embodiment of the present invention, FIG. 11A is an enlarged explanatory diagram of a main part of the power feeding device, and FIG. 11B is a diagram viewed from an arrow XIB in FIG.
Next, the seventh embodiment of the present invention will be described. In the description of the seventh embodiment, the same reference numerals are given to the components corresponding to the components of the first embodiment, and the detailed description thereof will be given. Omitted.
The seventh embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.

In FIG. 11, in the power feeding device 71 of the seventh embodiment, unlike the first embodiment, the terminal member 9 is omitted, and conduction and power feeding are performed only by the spring member 11 ′ as an example of the power feeding member.
In FIG. 11, in the power feeding device 71 of the seventh embodiment, a power feeding member holding portion 72 is formed instead of the terminal holding portion of the first embodiment. The power supply member 72 is formed in a cylindrical power supply member mounting portion 72a, a power supply member receiving recess 72b formed in a recess in the power supply frame 2, a bottom surface 72c of the power supply member receiving recess 72b, and a central portion of the bottom surface 72c. A through hole 72d is provided.
When the spring member 11 is mounted, the spring member 11 ′ is wound around the through hole 7 d with respect to the power feeding plate 2. At this time, the spring member 11 ′ is supported by the bottom surface 7 c and is held in a state in which one end protrudes to the front side of the power feeding plate 2 as shown in FIG. 11B. The length by which the spring member 11 ′ protrudes is set to such a length that the spring member 11 ′ is not easily bent in the circumferential direction when the power feeding device 71 is attached to the power supplied member 6.
The other end portion of the spring member 11 ′ wound from the through hole 7 d is supported by the spring other end support portion 12 b of the biasing member holding portion 12 as in the first embodiment.

(Operation of Example 7)
In the seventh embodiment having the above-described configuration, the spring member 11 ′ is attached to the terminal accommodating portion 7 b, and the inclination and falling of the spring member 11 ′ are restricted. When the power supply board 3 is pushed into the power supply plate 2 when the power supply apparatus 1 is assembled, the connection terminal 13 portion of the power supply board 3 comes into contact with the other end of the spring member 11 ', and the spring member 11' is elastically deformed. At this time, since one end portion side of the spring member 11 'is supported by the bottom surface 7c, the spring member 11' is prevented from being pushed forward by the elastic force, that is, in the X direction side. After the power supply board 3 is mounted and the power supply device 71 is assembled, when the power supplied terminal 14 of the power supplied body 6 (CC, GRk, GRy, GRm, GRc, T1, JR) contacts the power supply device 71, The spring member 11 ′ is elastically deformed and is pressed against the power-supplied member 6, so that the power supply substrate 3 and the power-supplied member 6 are reliably connected via the spring member 11 ′.

(Example of change)
As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various change is performed within the range of the summary of this invention described in the claim. It is possible. A modified example (H01) of the present invention is exemplified below.
(H01) In the sixth embodiment, the urging member penetrating support portion 63c is configured by a combination of a plurality of slidable members that are deformed from an expanded state to a contracted state. Any material or shape that can be deformed from an expanded state to a contracted state, such as an elastic rubber, can be used.

FIG. 1 is an explanatory view of an image forming apparatus to which a developer supply container of Example 1 of a powder container according to the present invention is mounted. FIG. 2 is a diagram showing a state in which each member in a portion surrounded by a broken line in FIG. 1 is removed. FIG. 3 is an overall explanatory view of the power feeding apparatus according to the first embodiment of the present invention. FIG. 4 is an enlarged explanatory view of the main part of the power feeding apparatus according to the first embodiment of the present invention, FIG. 4A is a side sectional view of the power feeding apparatus, FIG. 4B is a perspective explanatory view of the main part of the power feeding apparatus, and FIG. FIG. 5A and 5B are diagrams for explaining the operation of the first embodiment of the present invention. FIG. 5A is a diagram showing a state immediately after the start of the attachment operation of the power feeding device, and FIG. 5B is a diagram showing a state in which the power supply board is pushed in from the state of FIG. FIG. 5C is a diagram illustrating a state in which the power-supplied member is moved from the state of FIG. FIG. 6 is an explanatory diagram of an image forming apparatus according to a second embodiment of the present invention, FIG. 6A is an enlarged explanatory diagram of the power supply apparatus according to the second embodiment, FIG. 6B is a perspective explanatory diagram of a terminal member according to the second embodiment, and FIG. 6B is a cross-sectional view taken along line VIC-VIC in FIG. 6B, FIG. 6D is a cross-sectional view taken along line VID-VID in FIG. 6A, and FIG. 6E is a cross-sectional view taken along line VIE-VIE in FIG. FIG. 7 is an explanatory diagram of a power feeding device according to a third embodiment of the present invention, FIG. 7A is an enlarged explanatory diagram of the power feeding device according to the third embodiment, FIG. 7B is a perspective explanatory diagram of a terminal member according to the third embodiment, and FIG. 7B is a cross-sectional view taken along the line VIID-VIID in FIG. 7A, and FIG. 7E is a view taken from the arrow VIIE in FIG. 7A. FIG. 8 is an explanatory view of a power feeding device according to a fourth embodiment of the present invention, FIG. 8A is an enlarged explanatory view of a main part of the power feeding device, and FIG. 8B is a perspective explanatory view of a power feeding member. FIG. 9 is an explanatory diagram of a power feeding device according to a fifth embodiment of the present invention, FIG. 9A is an enlarged explanatory diagram of a main part of the power feeding device, and FIG. 9B is an explanatory diagram of a connection terminal. FIG. 10 is an explanatory diagram of a power feeding device according to a sixth embodiment of the present invention, FIG. 10A is an explanatory diagram of a state before the power supply board is attached, FIG. 10B is an explanatory diagram of a state where the power supply board is attached, and FIG. It is explanatory drawing of the state with which the to-be-powered member was mounted | worn. FIG. 11 is an explanatory diagram of a power feeding device according to a seventh embodiment of the present invention, FIG. 11A is an enlarged explanatory diagram of a main part of the power feeding device, and FIG. 11B is a diagram viewed from an arrow XIB in FIG.

Explanation of symbols

1, 21, 31, 41, 51, 61, 71 ... feeding device,
2 ... Frame,
3, 52 ... power supply board,
6: Power-supplied body,
7, 32 ... terminal holding part,
8, 11 ', 28 ... feeding member,
9, 29, 33, 43, 63 ... terminal members,
11 ... Biasing member for power supply, spring,
11 '... spring member,
12 ... biasing member holder,
12, 27f, 32 + 33a + 33d, 43a + 43d, 53 + 56, 63c... Tilt prevention mechanism,
27e ... inner peripheral surface 27f ... projection,
33a, 34a ... cylindrical wall,
33b, 34b ... notch,
36a ... guided portion,
36d, 43a ... projections,
43d ... biasing member accommodating portion,
53. Jig convex part through-hole,
56 ... Jig,
56a ... convex part,
63c ... biasing member penetration support part,
72: Power supply member holding portion CC: Charger,
F: Fixing device,
G ... Developer,
PR: Image carrier,
ROS ... latent image forming device,
Tn: Visible image,
S ... medium
B + T1 + Rd + Rt + Rw + Rf + T2 ... transfer device,
U1 Image forming apparatus.

Claims (9)

A power supply board;
A frame on which the power supply substrate is supported;
A terminal holding portion formed on the frame;
A terminal member that is supported by the terminal holding unit and electrically connected to the power supply board and supplies power to the power-supplied body, and is supported so as to be movable in a terminal moving direction in contact with the power-supplied body. A power supply member comprising: a terminal member; and a power supply biasing member that applies a force to constantly move the terminal member in a direction in which the terminal member is in contact with the power-supplied body.
An inclination preventing mechanism for preventing the power supply member from being inclined with respect to the terminal moving direction when the power supply board is attached to the frame body while the power supply urging member is compressed;
A power supply apparatus comprising: The tilt prevention mechanism configured by an urging member holding body that holds an end of the power supply urging member on the power supply substrate side and is supported by the terminal holding portion so as to be movable along the terminal moving direction. ,
The power feeding device according to claim 1, further comprising: An outer peripheral surface of the power supply urging member formed on at least the inner peripheral surface of the end portion on the power supply board side of the terminal holding portion formed in a cylindrical shape supported in a state where the terminal member is accommodated therein. The tilt prevention mechanism configured by a protrusion that contacts the protrusion and a notch corresponding to the protrusion on the terminal member,
The power feeding device according to claim 1, further comprising: The terminal holding part formed by a cylindrical wall having an inner diameter corresponding to the outer diameter of the power supply urging member, a notch part formed in the cylindrical wall, and an inside of the cylindrical terminal holding part A guided portion formed on the terminal member supported in the accommodated state and guided to the inner surface of the cylindrical wall, and a protrusion formed on the guided portion and corresponding to the notch An inclination prevention mechanism comprising:
The power feeding device according to claim 1, further comprising: A guided portion formed on the terminal member supported in a state of being accommodated in the terminal holding portion formed in a cylindrical shape and guided to the inner surface of the cylindrical wall, and a hook-like shape on the guided portion And an urging member accommodating portion that is supported in a state in which a power-supplied member-side end portion of the urging member for electric power feeding is accommodated therein,
The power feeding device according to claim 1, further comprising: A power supply board;
A frame on which the power supply substrate is supported;
A terminal holding portion formed on the frame;
A power supply member that is supported by the power supply member holding portion and is electrically connected to the power supply substrate and supplies power to the power-supplied body, and is supported so as to be movable in a terminal moving direction that contacts the power-supplied body. A power supply member having the terminal member, and a power supply urging member that applies a force that constantly moves the terminal member in a direction to contact the power-supplied body,
The power supply urging member is formed by a spring in which a wire is spirally wound,
The power supply substrate has a jig convex through hole,
The jig convex portion through-hole penetrates the convex portion of the jig having a convex portion inserted into the inner diameter of the power supply biasing member in a state before the power supply board is attached to the frame body, The jig is removed after the power supply board is attached to the frame.
A power supply apparatus characterized by that. An urging member penetrating support portion formed in the terminal member and penetrating in the axial direction and deformable in the axial direction while passing through the urging member for power feeding constituted by a spring in which a wire is spirally wound. The tilt prevention mechanism,
The power feeding device according to claim 1, further comprising: A power supply board;
A frame on which the power supply substrate is supported;
A power supply member holding portion formed on the frame;
A power supply member that is supported by the power supply member holding portion and is electrically connected to the power supply board and supplies power to the power-supplied body.
An inclination preventing mechanism for preventing the power supply member from being inclined with respect to the expansion / contraction direction when the power supply board is attached to the frame body while the power supply member is compressed;
A power supply apparatus comprising: An image carrier,
A charger to which a charging voltage for charging the surface of the image carrier is applied;
A latent image forming apparatus for forming a latent image on the surface of the image carrier;
A developing device as a power supply to which a developing voltage for developing a latent image on the surface of the image holding body into a visible image is applied;
The power supply device according to any one of claims 1 to 8, which supplies power to the developing device,
A transfer device to which a transfer voltage for transferring the visible image to a medium is applied;
A fixing device for fixing the visible image transferred to the medium;
An image forming apparatus comprising:

Images