CN101308342A - Grounding device of sensitometric drum and sensitometric drum unit of image forming device - Google Patents
Grounding device of sensitometric drum and sensitometric drum unit of image forming device Download PDFInfo
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- CN101308342A CN101308342A CN 200810097167 CN200810097167A CN101308342A CN 101308342 A CN101308342 A CN 101308342A CN 200810097167 CN200810097167 CN 200810097167 CN 200810097167 A CN200810097167 A CN 200810097167A CN 101308342 A CN101308342 A CN 101308342A
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Abstract
The invention provides a grounding device of a photosensitive drum, which can avoid the noise of the connection portion of the drum shaft and the grounding component without reducing the intensity of the drum shaft to obtain a great image. The grounding device of the photosensitive drum is electrically connected to the drum shaft (15) with conductivity to the photosensitive drum (12) rotatablely installed on the drum shaft (15) via the grounding component (19); the conductive resin forms the grounding component (19); the grounding component (19) is provided with the contact sheet (19b) contacting to the photosensitive drum (12) on the grounding plate (19a), a flexible contact sheet (19c) contacting to the drum shaft (15); the drum shaft (15) and the photosensitive drum (12) are electrically connected.
Description
Technical field
The present invention relates to a earthing device that the photosensitive drums in the electro-photography apparatus is electrically connected with drum axle as earthing potential, and embedding there is the photoconductive drum unit of the image processing system of this earthing device.
Background technology
The photosensitive drums of electro-photography apparatus such as duplicating machine, laser printer drives and supports for its rotation usually, at the both ends of its photosensitive drums or one-sided end embed and be equipped with the flange that has gear, and be installed in the established part of image processing system.Recently, from the viewpoint of cost, be extensive use of the synthetic resin of polycarbonate (PC), polyacetal, polyoxy methylene electrical insulating properties such as (POM) as the material of the flange that has gear.
In electrophotographic processes, for obtaining preferable image, the photographic layer of photosensitive drums must ground connection, and in the past, photographic layer was grounded by the framework of devices such as duplicating machine from the drum beam warp.Therefore, need to guarantee good conducting between the photographic layer of photosensitive drums and the drum axle.Therefore, consider cost, under the situation of using the described plastic insulativity flange that has a gear, as the mechanism that guarantees to conduct, known have use metal grounded parts, with the conductive state of formation between photosensitive drums and the drum axle that connects the insulativity flange.
As this kind example, can enumerate the method shown in Figure 10 (a) and (b).Promptly, can enumerate following method, in the end of photosensitive drums 1 insulativity flange 2 is set, and drum axle 3 is run through in the photoconductive drum device 4 of central part of this insulativity flange 2, the grounded parts 5 that peripheral part is contacted with described photosensitive drums 1 is fixed in described insulativity flange 2, using metal plate shape to become the elastic contact chip that is provided with convex interior week 6 of this grounded parts 5 of the plectane of ring-type, this elastic contact chip 6 to foreign side's bending, and is being contacted (with reference to patent documentation 1,2 etc.) with drum axle 3.And, in drawing, be provided with gear 9 at flange 2.
Yet, under the situation that adopts described method, bulging 3 direct contact that forms between the metals with elastic contact chip 6, under the situation that grounded parts 5 and sense organ drum 1 rotate integratedly, elastic contact chip 6 slides in the periphery of drum axle 3 and rotates, thereby exist this contact portion to produce noise, or the abrasion of drum axle 3 problem such as become significantly.
In contrast, shown in Figure 11 (a) to (c), known have a following method, that is: in the end of photosensitive drums 1 insulativity flange 2 is set, and drum axle 3 is run through in the photoconductive drum device 4 of central part of this insulativity flange 2, the grounded parts 5 that peripheral part is contacted with described photosensitive drums 1 is fixed in described insulativity flange 2, and form the long-pending oily portion 7 that diameter is diminished midway at described drum axle 3, the elastic contact chip that convex is set in interior week 6 at this grounded parts 5 of the plectane that forms ring-type, with of the opposition side bending of this elastic contact chip to flange 2, contact with the long-pending oily portion 7 of drum axle 3, and, grease 8 (with reference to patent documentation 3 etc.) in this long-pending oily portion, disposed.
Patent documentation 1: the spy opens the 2000-181286 communique
Patent documentation 2: the spy opens flat 10-319783 communique
Patent documentation 3: the spy opens flat 08-095428 communique
But if in the long-pending oily portion 7 that thin footpath is set that rouses axle 3 midway, the intensity of then not only rousing axle 3 reduces, if use grease 8 and repeated use, the anxiety that then has grease 8 to overflow from long-pending oily portion 7.If the grease that overflows 8 is attached to the inner peripheral surface of photosensitive drums 1, then there is the image that is difficult to form this part, thereby produces the bad anxiety of image.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of intensity that does not make drum axle 3 to prevent the noise that conducts the part place of drum spool and grounded parts with reducing, and, the use of saving grease, and image forms the earthing device of good photosensitive drums and the photoconductive drum unit of image processing system.
For solving the above problems, the invention of mode 1 is the earthing device of the photosensitive drums in a kind of electro-photography apparatus, its use has the grounded parts of electric conductivity, to have the photosensitive drums that the drum axle of electric conductivity and flange via insulativity be rotatably mounted in this drum spool is electrically connected, wherein, described grounded parts possesses: contact chip that contacts with photosensitive drums and the elastic contact chip that is electrically connected with the drum axle, this elastic contact chip is with respect to adopting the structure of having used electroconductive resin in the electrical connection of drum axle.
The invention of mode 2 constitutes, described grounded parts is made of ground plate, contact chip and elastic contact chip, described ground plate constitutes the ring-type of the external diameter that is contained in the described photosensitive drums and the internal diameter bigger than the external diameter of described drum axle, described contact chip is provided with outstanding with the contacted mode of described photosensitive drums in the outer peripheral edges of described ground plate, described elastic contact chip goes out to be provided with to described bulging aixs cylinder from the inner peripheral of described ground plate, and the integral body of this grounded parts is formed by electroconductive resin.
The invention of mode 3 is, described grounded parts uses sheet metal to form, and the elastic contact chip that is arranged at this grounded parts with the contacted position of drum axle, the sliding contact parts that is made of electroconductive resin is set.
The invention of mode 4 is, described sliding contact parts is formed tubular, and the contact site that is coupling and touches with drum that can be installed in described elastic contact chip.The invention of mode 5 is, described sliding contact parts is being implemented chamfering with the described drum end of touching that is coupling.The invention of mode 6 constitutes, and the be coupling both side edges of the contact site that touches of the elastic contact chip of described grounded parts and drum is formed the anticreep edge of sliding contact parts, with the sliding contact parts immobilization that outer embedding shape can be installed.The invention of mode 7 constitutes, the contact site that is coupling and touches with drum that described sliding contact parts uses bonding agent and be fixed in described elastic contact chip under the state that conducts.
The invention of mode 8 constitutes, described grounded parts uses sheet metal to form, and at position that the elastic contact chip with being arranged at described grounded parts of described drum axle contacts, the electric conductivity cylindrical shell cylindraceous that is made of electroconductive resin is installed sliding freely, and described elastic contact chip is contacted with the electric conductivity cylindrical shell.
The invention of mode 9 constitutes, and described elastic contact chip utilization forms from the outstanding claw of the inner peripheral of described ground plate, and contacts with described electric conductivity cylindrical shell by this elastic contact chip, limits this electric conductivity cylindrical shell moving on the drum axle.The invention of mode 10 constitutes, in the both ends of the surface of described elastic contact chip and described electric conductivity cylindrical shell, the end face of opposition side of described grounded parts one side of configuration, and the outer peripheral face contact of perhaps described electric conductivity cylindrical shell.The invention of mode 11 is characterised in that described grounded parts is stainless steel.
Following structure is adopted in the invention of mode 12, that is: described grounded parts uses electroconductive resin to form coil spring shape, and the outer circumferential side in the big footpath of spiral side has the contact chip that contacts with photosensitive drums, and the path side end of spiral footpath side within it forms the elastic contact chip that is coupling and touches with drum.The invention of mode 13 is characterised in that the elastic contact chip of described grounded parts flexibly is external in described drum axle under the state after the hole enlargement.
The invention of mode 14 is characterised in that described electroconductive resin is that volume resistivity is 5 * 10
2Below the Ω cm.The invention of mode 15 is characterised in that described electroconductive resin is combined with the conductive material that 17 weight portions are above and 85 weight portions are following for base resin 100 weight portions.The invention of mode 16 is characterised in that described conductive material is a carbon dust.The invention of mode 17 is characterised in that the base resin of described electroconductive resin has sliding properties.
The invention of mode 18 constitutes, and the base resin of described electroconductive resin is that the base resin from described electroconductive resin is at least a resin of selecting from polyacetal resin, polyamide, polyvinyl resin, pet resin, polycarbonate resin, polyflon, polyphenylene sulfide, polybutylene terephthalate resin, acrylic resin.
The invention of mode 19 is characterised in that described insulativity flange is the body that is injected into of synthetic resin.The invention of mode 20 is characterised in that at least one side of described insulativity flange is the cogged body that is injected into that is shaped integratedly.The invention of mode 21 is characterised in that the contact site of ground plate that contact, that be arranged at described grounded parts is disposed between described insulativity flange and the described photosensitive drums with described photosensitive drums, and is clipped between the two.
In addition, the invention of mode 22 is photoconductive drum units of image processing system, and it is constituted as, and each described earthing device in the mode 1～21 is embedded the inside of photosensitive drums.
This invention is in the earthing device of photosensitive drums, use electroconductive resin to be used for conducting of drum axle and grounded parts, therefore grounded parts is divided into electroconductive resin to the sliding contacting part of drum axle, even grounded parts and photosensitive drums are together guaranteed conducting of drum axle and grounded parts with respect to drum axle rotation, simultaneously the sliding contacting part of grounded parts divides with respect to the drum axle and utilizes the characteristic of resin and sliding improves, thus, can prevent the generation of the noise between drum axle and grounded parts.
In addition because drum axle and grounded parts conduct the use electroconductive resin, so metal can prevent the abrasion generation of the drum axle that the direct contact between the metal causes with respect to the directly contact of drum axle.
In addition, by making electroconductive resin have sliding properties, do not need the use of grease in the drum axle and the sliding contact part of grounded parts, thereby grease can not disperse and be attached to photosensitive drums, and prevent that the image on photosensitive drums from forming bad, can access preferable image, and because do not need to cut the processing of the long-pending oily portion of outer peripheral face with respect to drum axle, so can not cause the intensity of drum axle to reduce.
And then, have sliding properties by making electroconductive resin, grounded parts improves with respect to the sliding of the sliding contact part of drum axle, even and grounded parts with respect to the rotation of drum axle, can prevent that also the drum axle from wearing away.
Description of drawings
Fig. 1 (a) is the partial cut-out front view that embeds the photoconductive drum device of the earthing device that first embodiment is arranged, and (b) is same portions cut stereographic map.
Fig. 2 (a) is grounded parts that uses in the earthing device of first embodiment and the stereographic map that rouses axle, (b) being the amplification vertical profile side view of the arrow b-b line of Fig. 1 (a), (c) is the front view after the contact portion amplification of drum axle with the elastic contact chip of grounded parts.
Fig. 3 (a) is the partial cut-out front view that embeds the photoconductive drum device of the earthing device that second embodiment is arranged, and (b) is the vertical profile side view of the arrow b-b line of (a), (c) is the same partial cut-out stereographic map.
Fig. 4 (a) is in the earthing device of second embodiment, represent the cross-sectional vertical view after sliding contact parts is with respect to the amplification of the installation constitution of the elastic contact chip of grounded parts, (b) be the front view of expression sliding contact parts after with respect to the amplification of the crimped status of drum axle, (c) being the elastic contact chip of grounded parts and the exploded perspective view of sliding contact parts, (d) is that expression utilizes the drawing in side sectional elevation after conductive adhesive is fixed on sliding contact parts the amplification of example of elastic contact chip of grounded parts.
Fig. 5 (a) is in the earthing device of second embodiment, with the partial cut-out front view of the photoconductive drum device after the grounded parts embedding of other example, (b) is the vertical profile side view of the arrow b-b line of (a), (c) is the same partial cut-out stereographic map.
Fig. 6 (a) is the partial cut-out stereographic map that embeds the photoconductive drum device of the earthing device that the 3rd embodiment is arranged, and (b) is other the partial cut-out stereographic map of example of expression grounded parts.
Fig. 7 (a) is the front view of the grounded parts that uses in the earthing device of the 3rd embodiment, (b) is other the front view of example of similarly representing grounded parts, (c) is the stereographic map of electric conductivity cylindrical shell.
Fig. 8 (a) is the partial cut-out front view that embeds the photoconductive drum device of the earthing device that the 4th embodiment is arranged, and (b) is the same partial cut-out stereographic map.
Fig. 9 (a) is the stereographic map of spirality grounded parts, (b) is the amplification longitudinal diagram of the arrow b-b line of Fig. 8 (a).
Figure 10 (a) is a partial cut-out stereographic map of representing an example of photoconductive drum device in the past, is with the vertical profile side view (b).
Figure 11 (a) is other the partial cut-out stereographic map of example of representing photoconductive drum device in the past, is with the vertical profile side view (b), (c) is the vertical profile side view along the arrow c-c of (b).
Among the figure, the 11-photoconductive drum device; The 12-photosensitive drums; The 13-flange; The 14-frame; 15-drum axle; The 16-gear; The 17-through hole; The 18-earthing device; The 19-grounded parts; The 19a-ground plate; The 19b-contact chip; The 19c-elastic contact chip; The 20-chamfering; The 21-notch; The 22-sliding contact parts; 23-anticreep edge; The 24-bonding agent; The 25-chamfering; 26-electric conductivity cylindrical shell.
Embodiment
Below, based on the description of drawings embodiments of the present invention.
At first shown in Fig. 1 (a) and (b), the photoconductive drum device 11 of duplicating machine by the chimeric insulativity flange 13 that has fixedly used synthetic resin in the two ends of photosensitive drums 12 (below, simply be called flange), this photosensitive drums 12 is via the configuration of described flange with coaxial shape, be rotatably mounted in the electric conductivity drum axle 15 of the earthing potential that the frame 14 of relative duplicating machine do not set up rotatably, and be connected with rotary driving source and can rotate by the gear 16 that will be provided with at the flange 13 of one or both sides.
Described flange 13 forms discoideus that the internal diameter of external diameter and photosensitive drums 12 is fit to, because lightweight and the purpose that reduces cost, use synthetic resin, utilize injection moulding integrally formed with the gear 16 that is positioned at outside end face, and in its axle center being provided with through hole 17 with respect to the modes of drum axle 15 rotations.
And Fig. 1 (a) has represented at the flange 13 that is positioned at two ends an example of gear 16 to be set respectively with respect to photosensitive drums 12, but the flange of a side also can omit gear.
The earthing device 18 of this invention is in the photoconductive drum device 11 of described duplicating machine, the drum axle 15 that the grounded parts 19 that use has electric conductivity will have electric conductivity is electrically connected with the photosensitive drums 12 that is rotatably mounted in this drum axle 15 via flange 13, this grounded parts 19 with rouse spools 15 be electrically connected in use electroconductive resin.
Fig. 1 and Fig. 2 represent to embed the earthing device 18 of first embodiment of the photoconductive drum device 11 of duplicating machine.
The grounded parts 19 that the earthing device 18 of this first embodiment will use electroconductive resin integrally to form is used for being electrically connected of drum axle 15 and photosensitive drums 12, and this grounded parts 19 forms the external diameter of the inside that is contained in photosensitive drums 12 and is embedded in the ring-type of the internal diameter of drum axle 15 outward, and by the ground plate 19a that disposes overlappingly with inner side end with flange 13, periphery at this ground plate 19a is used for contacting and the outstanding a plurality of contact chip 19b that are provided with described photosensitive drums 12, form to the outstanding elastic contact chip 19c that is provided with in axle center with interior Zhou Yiyu drum axle 15 modes that contact at described ground plate 19a.
This grounded parts 19 is conducted with drum axle 15 by elastic contact chip 19c, conduct with photosensitive drums 12 by contact chip 19b from ground plate 19a, therefore can guarantee photosensitive drums 12 and the conducting of rousing axle 15, and because the whole electroconductive resin that uses forms, so grounded parts 19 is an electroconductive resin for the contact portion of drum axle 15, thereby can in the electrical connection of grounded parts 19, remove contact between the metal with respect to drum axle 15.
The molding or the injection moulding of the sheet material of described grounded parts 19 by having used electroconductive resin are shaped.It is tongue-shaped that the contact chip 19b of its periphery forms the weak point of dihedral, in the illustrated case, outer Wednesday of a position outstanding setting at ground plate 19a with equally spaced configuration, and outstanding length forms, when the ground plate 19a of grounded parts 19 is embedded the inside of photosensitive drums 12 with the configuration of concentric, its front end deflection and be crimped on the inner peripheral surface of photosensitive drums 12.
In addition, elastic contact chip 19c highlightedly is provided with one piece from the inner peripheral of ground plate 19a to the center of ground plate 19a with band plate-like, and length is set to: when the interior all end faces with grounded parts 19 and flange 13 dispose overlappingly, by a bending in advance or a bending that causes by drum axle 15 slotting admittances, from the oblique extension of outer peripheral face to drum axle 15 of the inner peripheral of ground plate 19a, and leading section is crimped on the outer peripheral face of drum axle 15.Fig. 2 (a) represents this state.
Fig. 2 (c) is the enlarged drawing of the contact portion of described elastic contact chip 19c of expression and drum axle 15, described elastic contact chip 19c implements the chamfering 20 of the face of tool of circular-arc or inclination with the end angular place that the outer peripheral face of drum axle 15 contacts, thereby realizes with respect to the stability in contact of drum axle 15 and the raising that conducts.In addition, under situation about being formed by molding from sheet material, the elastic contact chip 6 shown in Figure 11 (a) also can contact the front end bending of elastic contact chip 19c with the outer peripheral face of this bending part with drum axle 15.
The first embodiment earthing device 18 constitutes as described above, under the situation of the end of photosensitive drums 12 holding flange 13, overlapping and the concentric configuration with the inner side end of the ground plate 19a of grounded parts 19 and flange 13, under this state, if flange 13 is inserted in the end in photosensitive drums 12, the front end of contact chip 19b that then is arranged at the periphery of grounded parts 19 is pushed and deflection by the inner peripheral surface of photosensitive drums 12, grounded parts 19 is contained in the photosensitive drums 12 and is immobilized thus, if the end in photosensitive drums 12 embeds flange 13, the inner peripheral surface crimping of the front end of then described contact chip 19b and photosensitive drums 12, thus photosensitive drums 12 is electrically connected with grounded parts 19.
And, grounded parts 19 is housed in a plurality of contact chip 19b that are provided with equally spaced configuration on the periphery by the inside in photosensitive drums 12, constitute the configuration of concentric shape in the inside of photosensitive drums 12, but be different from this, also can use the inner side end of fixed mechanism predetermined fixed in flange 13.In addition, the position in outer week of the inner side end of flange 13 for allowing the deflection of contact chip 19b, is provided with notch 21 in the position corresponding with each contact chip 19b.
As mentioned above, for the photosensitive drums 12 that will be fixed with flange 13 in the end is installed on drum axle 15, if insert logical drum axle 15 to the flange 13 of opposite side from a side flange 13, then the elastic contact chip 19c of grounded parts 19 is outstanding with respect to ground plate 19a deflection laterally by being pushed by drum axle 15 with drum axle 15 contacts site that contact of leading section, on drum axle 15, rotatably be equipped with under the state of photosensitive drums 12, fore-end and the outer peripheral face crimping of rousing axle 15, drum axle 15 conducts with elastic contact chip 19c.
Thereby, if on drum axle 15, photosensitive drums 12 is installed rotatably, then photosensitive drums 12 is electrically connected via grounded parts 19 with bulging 15, thereby finish the blocking of photosensitive drums 12, and the drum axle 15 of the photosensitive drums after this blocking 12 is set up in non-rotary mode on the frame 14 of the earthing potential that constitutes duplicating machine, and photosensitive drums 12 constitutes earthing potential thus.
Described photosensitive drums 12 is utilized when duplicating machine is worked with the rotary driving source of gear 16 interlocks and is given rotation, and flange 13 rotates integratedly with grounded parts 19, but the elastic contact chip 19c of grounded parts 19 rotates by moving sliding in state of the outer peripheral face that is crimped on drum axle 15, keep conducting of drum axle 15 and elastic contact chip 19c, thereby keep the earthing potential of photosensitive drums 12.
Described grounded parts 19 can be guaranteed the conducting of drum axle 15 and photosensitive drums 12 individually, and whole is electroconductive resin system, therefore grounded parts 19 is an electroconductive resin with respect to the contact portion of drum axle 15, and metal contact with drum axle 15, thereby can prevent that when photosensitive drums 12 rotations elastic contact chip 19c is in the slide noise generation of the situation of rotating of the periphery of drum axle 15.And by use the material with lubricating property in the resin material of electroconductive resin, the abrasion that can suppress drum axle 15 effectively produce, and improve permanance.
Fig. 3 and Fig. 4 represent to embed the photoconductive drum device 11 of duplicating machine of the earthing device 18 of second embodiment.And in second embodiment, photoconductive drum device 11 is because identical with the first above-mentioned embodiment, so the identical label of same section mark and replace explanation.In addition, in the grounded parts of earthing device, the part identical with shape with the first embodiment function also marked identical mark and describe.Later embodiment too.
The earthing device 18 of this second embodiment is by the metal plate shape forming shape grounded parts 19 identical with first embodiment, and forms the structure that the sliding contact parts 22 that has used electroconductive resin is installed at the front end of this elastic contact chip 19c.
The grounded parts 19 that has used this sheet metal is so that ground plate 19a is embedded in the overlapping mode of the inner side end of the flange 13 of the inside of photosensitive drums 12 and one or both sides, and described photosensitive drums 12 is electrically connected with drum axle 15, described sliding contact parts 22 elastic contact chip 19c with drum axle 15 places, contact site that contact, install in the mode that the outer peripheral face with drum axle 15 contacts, and utilize electroconductive resin, guarantee conducting of drum axle 15 and elastic contact chip 19c, remove the direct contact between the metal simultaneously.
Described grounded parts 19 uses a slice sheet metal, utilize the drawing punching and form, elastic contact chip 19c is by in residual part when circular with the central part punching of ground plate 19a, and be formed centrally outstanding band plate-like circumferentially from the interior of ground plate 19a, when ground plate 19a is disposed at the inner side end of flange 13 overlappingly, by in advance crooked or by the logical bending that forms of inserting of drum axle 15, from the oblique extension of outer peripheral face to drum axle 15 of the inner peripheral of ground plate 19a, and length is set to: the sliding contact parts 22 that is installed on its leading section is crimped on the outer peripheral face of drum axle 15.
The sheet metal of formation that is used for this grounded parts 19 is so long as have electric conductivity and restore flexible material and get final product, and material is not particularly limited, and for example can illustration produce the stainless steel of rust.
The sliding contact parts 22 that is installed on the leading section of described elastic contact chip 19c uses electroconductive resins, and form can outer embedding shape ground to the tubular of the leading section installation of described elastic contact chip 19c.
This sliding contact parts 22 forms cylindric as Fig. 4 (a) to (c), flexibly when the leading section of described elastic contact chip 19c covers installation, be deformed into flat dihedral, the leading section both side edges of elastic contact chip 19c forms the anticreep edge 23 as zigzag fashion, can positively fix the sliding contact parts 22 that outer embedding shape ground is installed.
Fig. 4 (d) illustration the leading section of elastic contact chip 19c is formed flat tabular, and at the bonding agent 24 of sliding contact parts 22 with respect to use electric conductivity in the leading section of this elastic contact chip 19c fixing.
Described sliding contact parts 22 is not limited to as shown cylindric, also can be pre-formed and be flat angle tube, can be installed in the leading section of elastic contact chip 19c outer embedding shape, in addition, omit diagram, but also can adopt sliding contact parts 22 to be formed flat tabular, and the bonding agent that utilizes electric conductivity is adhesively fixed on structure on elastic contact chip 19c and surface of contact drum axle 15 with it.
In these sliding contact parts 22, implement the chamfering 25 of circular-arc or oblique face of tool in the end that the outer peripheral face with drum axle 15 contact, improve with respect to the stability in contact of drum axle 15 with conduct.And, at sliding contact parts 22 is under the situation of tubular, if described chamfering 25 is in the full week enforcement of the end of sliding contact parts 22 outer peripheral edges, when then installing with respect to elastic contact chip 19c, the directivity that does not have circumferencial direction, fitting operation can carry out smoothly.In addition, if described chamfering 25 is implemented at the two ends of sliding contact parts 22, do not have the directivity of front and back when then installing, fitting operation further carries out smoothly.In addition, big by implementing described chamfering 25 with the contact area change of drum axle 15, realize the raising of electric conductivity, and then suppress the initial abrasion of sliding contact parts 22.
In described each sliding contact parts 22, the thickness of the part between elastic contact chip 19c and drum axle 15 preferably sets the scope at 1mm～5mm.Because, if thickness below 1mm, then attenuation and poor durability if be more than the 5mm, then do not have the raising of characteristic, and manufacturing cost improves, and be therefore not preferred.
Next, the example of other of the grounded parts 19 in Fig. 5 (a) to (c) expression second embodiment.This grounded parts 19 will use the internal diameter of the ground plate 19a of sheet metal to form the path littler than internal diameter shown in Figure 3, be implemented in short and smallization of giving prominence to the elastic contact chip 19c that is provided with on the inner peripheral of ground plate 19a, and, so that equally spaced configuration is outstanding three elastic contact chip 19c are set at the inner peripheral of ground plate 19a, the structure of sliding contact parts 22 is installed in places, the contact site formation that contact with drum axle 15 of each elastic contact chip 19c.
As mentioned above, if with short and smallization of elastic contact chip 19c, then can improve be installed in drum axle 15 contacts site that contacts on sliding contact parts 22 with respect to the crimp force of drum axle 15, and the sliding contact parts 22 that is installed in three elastic contact chip 19c is clasped drum axle 15, guarantees conduction even grounded parts 19 also can positively be stablized when rotating with respect to drum axle 15.
The earthing device of second embodiment is aforesaid structure, under the situation of the end of photosensitive drums 12 holding flange 13, the configuration that forms concentric overlappingly at the inner side end and the ground plate 19a of flange 13, if under this state, flange 13 is inserted in end in photosensitive drums 12, the front end of contact chip 19b that then is arranged at the periphery of grounded parts 19 is pressed in the inner peripheral surface of photosensitive drums 12 and deflection, grounded parts 19 is contained in the photosensitive drums 12 and is immobilized thus, if the end in photosensitive drums 12 embeds flange 13, the front end of then described contact chip 19b is crimped on the inner peripheral surface of photosensitive drums 12, and photosensitive drums 12 is electrically connected with grounded parts 19.
And, grounded parts 19 is by being contained in the inside of photosensitive drums 12 by a plurality of contact chip 19b that are provided with equally spaced configuration in periphery, constitute the configuration of concentric shape in the inside of photosensitive drums 12, but be different from this, also can use the inner side end of fixed mechanism predetermined fixed at flange 13.
As mentioned above, for the photosensitive drums 12 that will be fixed with flange 13 in the end is installed on drum axle 15, if insert logical drum axle 15 to the flange 13 of opposite side from a side flange 13, then the elastic contact chip 19c of grounded parts 19 pushes and gives prominence to the outside deflection of the radial direction that rouses axle 15 by being installed in sliding contact parts 22 quilt drum axles 15 leading section and that rouse axle 15 places, contact site that contact, on drum axle 15, rotatably be equipped with under the state of photosensitive drums 12, sliding contact parts 22 and the outer peripheral face crimping of rousing axle 15, drum axle 15 conducts via the sliding contact parts 22 of electroconductive resin with elastic contact chip 19c.
Thereby, if on drum axle 15, photosensitive drums 12 is installed rotatably, then photosensitive drums 12 is electrically connected via grounded parts 19 with bulging 15, thereby finish the blocking of photosensitive drums 12, and the drum axle 15 of the photosensitive drums after this blocking 12 is set up in non-rotary mode on the frame 14 of the earthing potential that constitutes duplicating machine, and photosensitive drums 12 constitutes earthing potential thus.
Above-mentioned photosensitive drums 12 is utilized when duplicating machine is worked with the rotary driving source of gear 16 interlocks and is given rotation, and flange 13 rotates integratedly with grounded parts 19, but be installed in sliding contact parts 22 on the elastic contact chip 19c of grounded parts 19 by rotating in that sliding in state of the outer peripheral face that is crimped on drum axle 15 is moving, keep conducting of drum axle 15 and elastic contact chip 19c, thereby keep the earthing potential of photosensitive drums 12.
Above-mentioned sliding contact parts 22 is because be electroconductive resin, so can prevent direct contact the between the metal of drum axle 15 and elastic contact chip 19c, can prevent the noise generation when photosensitive drums 12 rotations thus.Simultaneously, by use the material with lubricating property in the resin material of the electroconductive resin that forms sliding contact parts 22, the abrasion that can suppress drum axle 15 effectively produce, and improve permanance.
Fig. 6 and Fig. 7 represent to embed the photoconductive drum device 11 of duplicating machine of the earthing device 18 of the 3rd embodiment.
The earthing device 18 of the 3rd embodiment by the electric conductivity cylindrical shell of on drum axle 15, installing sliding freely 26 cylindraceous and used sheet metals such as stainless steel grounded parts 19 combination and constitute, and in the inside of photosensitive drums 12 with grounded parts 19 to embed fixing with the overlapping mode of the inner side end of the flange 13 of one or both sides, and with described elastic contact chip 19c at root to the opposition side of flange 13 bending perk, make its leading section and electric conductivity cylindrical shell 26 Elastic Contact, form thus via electric conductivity cylindrical shell 26 photosensitive drums 12 and drum axle 15 structures that are electrically connected.
Above-mentioned grounded parts 19 has and the identical shape of grounded parts shown in described first and second embodiments, the elastic contact chip 19c of this grounded parts 19 is connected shown in Fig. 6 (a) with electric conductivity cylindrical shell 26, preferably with the bending of the leading section of elastic contact chip 19c, and in the both ends of the surface with its kink and described electric conductivity cylindrical shell 26, the contacted mode of end face of the opposition side of flange 13 engages.So, can form contacting of elastic contact chip 19c and electric conductivity cylindrical shell 26 more reliably, and can limit electric conductivity cylindrical shell 26 and move axially in drum axle 15 upper edges.
In the 3rd embodiment, for example, example shown in Fig. 6 (b), Fig. 7 (b), also can form path, elastic contact chip 19c can be formed and be shorter than the elastic contact chip 19c shown in Fig. 6 (a), and outstanding be provided with three by internal diameter with ground plate 19a, can keep electrically contacting of elastic contact chip 19c and electric conductivity cylindrical shell 26, and three elastic contact chip 19c flexibly keep electric conductivity cylindrical shell 26, therefore can limit electric conductivity cylindrical shell 26 and move axially in drum axle 15 upper edges.
Above-mentioned electric conductivity cylindrical shell 26 is shown in Fig. 7 (c), for internal diameter is embedded in the cylindric of drum axle 15 outward.Because be cylindric, lead in drum axle 15 so can insert.In addition, described electric conductivity cylindrical shell 26 uses electroconductive resin to form, and has electric conductivity, and by having the resin of lubricating property in the resin material that uses electroconductive resin, the abrasion that can suppress drum axle 15 effectively take place, and realizes the raising of permanance.
The earthing device of the 3rd embodiment is aforesaid structure, and under the charged situation of photosensitive drums 12, its electric current flows to ground plate 19a via the contact chip 19b of the grounded parts in the earthing device 18 19.Next, via elastic contact chip 19c, flow to electric conductivity cylindrical shell 26.This electric conductivity cylindrical shell 26 contacts with drum axle 15 slidably, and the electric current that therefore flows to electric conductivity cylindrical shell 26 flows to drum axle 15, and flows to the outside of photoconductive drum device 11 from drum axle 15, and is grounded.
Fig. 8 and Fig. 9 represent to embed the photoconductive drum device 11 of duplicating machine of the earthing device 18 of the 4th embodiment.
The structure of the plane coil spring shape before the grounded parts 19 of the earthing device 18 of the 4th embodiment is formed on and installs shown in Fig. 9 (a).
The ground plate 19a of this grounded parts 19 forms the spiral of wire, and use electroconductive resin to pass through injection moulding, form coil spring shape, and have at outer circumferential side and to be used for the contact chip 19b that is connected with photosensitive drums 12 as the large-diameter portion of the most peripheral of ground plate 19a, the conduct of having dwindled diameter from the large-diameter portion of this ground plate 19a minor diameter part in interior week becomes elastic contact chip 19c, and interior all sides of elastic contact chip 19c contact with drum axle 15.
The large-diameter portion of ground plate 19a constitutes the path slightly littler than the internal diameter of photosensitive drums 12, the weak point of the contact chip 19b formation dihedral of its periphery is tongue-shaped, in the illustrated case, the position that locate Wednesday outside the large-diameter portion of ground plate 19a is provided with so that equally spaced configuration is outstanding, and outstanding length forms, when ground plate 19a being embedded the inner peripheral surface of photosensitive drums 12 with the configuration of concentric roughly, its front end deflection and be crimped on the inner peripheral surface of photosensitive drums 12.
In addition, the minor diameter part that constitutes elastic contact chip 19c is so that roughly the configuration of concentric embeds the inside of photosensitive drums 12 with ground plate 19a, through hole 17 towards flange 13, insert when leading to will rousing axle 15 in through hole 17, the inner peripheral surface of elastic contact chip 19c catches on the external diameter of drum axle 15 and hole enlargement, by on the moving direction of drum axle 15, moving integratedly, ground plate 19a is stretched and is deformed into coniform, when this ground plate 19a stretches, drum axle 15 slides with respect to elastic contact chip 19c and moves, under the logical completion status of inserting of drum axle 15, grounded parts 19 become Fig. 8 (a) and (b) shown in form.
Above-mentioned elastic contact chip 19c utilizes the elastic force that electroconductive resin has and recovers and diameter reduction, it is fastening and keep the position advance to utilize this power will rouse axle 15, elastic contact chip 19c is pressed with respect to drum axle 15, therefore can sufficiently guarantee the conducting with drum axle 15.In addition since with the friction of drum axle 15, even how many abrasion of the fore-end of elastic contact chip 19c utilize the power of this recovery of elasticity, also can keep conducting.
The earthing device of the 4th embodiment is as above-mentioned structure, under the situation of the end of photosensitive drums 12 holding flange 13, ground plate 19a with photosensitive drums 11 mode of the configuration of concentric and grounded parts 19 is overlapping with the inner side end of flange 13 roughly, under this state, if flange 13 is inserted in the end in photosensitive drums 12, then pushed and deflection by the inner peripheral surface of photosensitive drums 12 at the front end of the contact chip 19b of the most peripheral setting of grounded parts 19, grounded parts 19 is housed in the photosensitive drums 12 and is immobilized thus, if the end in photosensitive drums 12 embeds flange 13, the front end of then described contact chip 19b is crimped on the inner peripheral surface of photosensitive drums 12, and photosensitive drums 12 is electrically connected with grounded parts 19.
And, the a plurality of contact chip 19b that are provided with equally spaced configuration at large-diameter portion of grounded parts 19 are by being housed in the inside of photosensitive drums 12, form the configuration of concentric shape in the inside of photosensitive drums 12, but be different from this, also can use the inner side end of fixed mechanism predetermined fixed at flange 13.
As mentioned above, for the photosensitive drums 12 that will be fixed with flange 13 in the end is installed in drum axle 15, if insert logical drum axle 15 to the flange 13 of opposite side from a side flange 13, the elastic contact chip 19c that then constitutes minor diameter part tangles the external diameter of drum axle 15 and is stretched, ground plate 19a is deformed into coniform, elastic contact chip 19c is outstanding to the outside deflection of the radial direction that rouses axle 15 by being pushed by drum axle 15 with drum axle 15 contacts site that contact, on drum axle 15, rotatably be equipped with under the state of photosensitive drums 12, fore-end outer embedding of elasticity with the outer peripheral face crimping of drum axle 15, and drum axle 15 conducts with elastic contact chip 19c.
Thereby, if on drum axle 15, photosensitive drums 12 is installed rotatably, then photosensitive drums 12 is electrically connected via grounded parts 19 with bulging 15, thereby finish the blocking of photosensitive drums 12, and the drum axle 15 of the photosensitive drums after this blocking 12 is set up in non-rotary mode on the frame 14 of the earthing potential that constitutes duplicating machine, and photosensitive drums 12 constitutes earthing potential thus.
Above-mentioned photosensitive drums 12 is utilized when duplicating machine is worked with the rotary driving source of gear 16 interlocks and is given rotation, and flange 13 rotates integratedly with grounded parts 19, but the elastic contact chip 19c of grounded parts 19 utilize to desire elastic recovery power and under the state of the outer peripheral face that is crimped on drum axle 15 circumference rotate, keep conducting of drum axle 15 and elastic contact chip 19c, thereby keep the earthing potential of photosensitive drums 12.
Above-mentioned grounded parts 19 can be guaranteed the conducting of drum axle 15 and photosensitive drums 12 individually, and utilizes the elasticity of coil spring shape, keeps conducting of drum axle 15 and elastic contact chip 19c, so the noise can suppress photosensitive drums 12 rotations the time produces.And by using the material that has lubricating property in the resin material of electroconductive resin, the abrasion that can suppress drum axle 15 effectively produce, and realize the raising of permanance.
In each embodiment of above-mentioned earthing device 18, preferred its volume resistivity of the above-mentioned electroconductive resin that uses in the formation of grounded parts 19 or sliding contact parts 22 and electric conductivity cylindrical shell 26 is 5 * 10
2Below the Ω cm.Can enumerate with respect to resin material 100 weight portions as this kind electroconductive resin, be combined with more than the 17 weight portions and the compound resin composition of the conductive material below the 85 weight portions as substrate (base) resin.
As this conductive material with lightweight with earthing device 18, especially grounded parts 19 or the sliding contact parts 22 and 26 lightweights of electric conductivity cylindrical shell that will form by electroconductive resin, and prevent from roller bearing 15 scuffings are purpose, the preferred conductive material that uses light weight, as this example, can enumerate: carbon dusts such as powdered graphite, carbon black, acetylene black etc.
And, if the volume resistivity of above-mentioned electroconductive resin is higher than 5 * 10
2Ω cm, then rouse the electric conductivity variation between axle 15 and the photosensitive drums 12, if and conductive material is with respect to resin material 100 weight portion less thaies 17 weight portions, electric conductivity variation then, in addition, if conductive material surpasses 85 weight portions, then with the even difficulty that becomes of mixing of base resin, and the grounded parts 19 that is formed by this electroconductive resin or the shaping of sliding contact parts 22 and electric conductivity cylindrical shell 26 become difficult and not preferred.
And then above-mentioned grounded parts 19 or sliding contact parts 22 and electric conductivity cylindrical shell 26 slide freely with respect to drum axle 15, and have electric conductivity, so even with respect to 15 rotations of drum axle, also can prevent the abrasion of drum axle 15.
Because above-mentioned grounded parts 19 or sliding contact parts 22 and electric conductivity cylindrical shell 26 formed with respect to drum axle 15 slide freely, the resin that therefore constitutes this grounded parts 19 or sliding contact parts 22 and electric conductivity cylindrical shell 26 preferably has sliding properties.Can enumerate as this kind resin: polyacetal resin, polyamide, polyvinyl resin, pet resin, polycarbonate resin, polyflon, polyphenylene sulfide, polybutylene terephthalate resin, acrylic resin etc., and can independent or compound use they.
In above-mentioned resin material, polyflon utilizes the low conductive material of sliding properties, and volume resistivity reduces easily, so preferred.
In addition, if above-mentioned electroconductive resin contains kollag or lubricated wet goods lubricants such as fluororesin powders such as molybdenum disulfide, polyflon, graphite, then the sliding properties of grounded parts 19 or sliding contact parts 22 and electric conductivity cylindrical shell 26 further raises, can slide smoothly with respect to drum axle 15, and can suppress the abrasion of drum axle 15.And the use level of kollag is more than the 5 weight portions below the 30 weight portions with respect to resin material 100 weight portions, under lubricated oil condition, is more than the 0.5 weight portion and below the 5 weight portions with respect to resin material 100 weight portions.
Embedding has the photoconductive drum device 11 of the earthing device 18 of the respective embodiments described above to use as the photoconductive drum unit of the image processing system in the electro-photography apparatus such as duplicating machine or laser printer.
Above-mentioned photoconductive drum device 11 is when using as photoconductive drum unit, and the flange 13 that is used for this photoconductive drum device 11 is made of the body that is injected into of synthetic resin, and is preferred on this aspect of photoconductive drum unit lightweight.In addition, this flange 13 is installed in the both ends of photosensitive drums 12, but its at least one side preferably gear 16 is shaped integratedly be injected into body.By gear 16 is shaped integratedly, does not need in addition gear to be packed into, and can realize the lightweight of photoconductive drum unit.
As mentioned above, in this photoconductive drum unit, the contact chip 19b of the ground plate 19a of earthing device 18 is configured between flange 13 and the photosensitive drums 12, and is clamped between the two.Therefore can form the structure of photoconductive drum unit simply.
Claims (22)
1. the earthing device of the photosensitive drums in the electro-photography apparatus, its use has the grounded parts of electric conductivity, will have the photosensitive drums that the drum axle of electric conductivity and flange via insulativity be rotatably mounted in this drum spool and be electrically connected, it is characterized in that,
Described grounded parts possesses: contact chip that contacts with photosensitive drums and the elastic contact chip that is electrically connected with the drum axle, use electroconductive resin in the electrical connection of this elastic contact chip with respect to the drum axle.
2. the earthing device of the photosensitive drums in the electro-photography apparatus according to claim 1 is characterized in that,
Described grounded parts is made of ground plate, contact chip and elastic contact chip, described ground plate constitutes the ring-type of the external diameter that is contained in the described photosensitive drums and the internal diameter bigger than the external diameter of described drum axle, described contact chip is provided with outstanding with the contacted mode of described photosensitive drums in the outer peripheral edges of described ground plate, described elastic contact chip goes out to be provided with to described bulging aixs cylinder from the inner peripheral of described ground plate, and the integral body of this grounded parts is formed by electroconductive resin.
3. the earthing device of the photosensitive drums in the electro-photography apparatus according to claim 1 is characterized in that,
Described grounded parts uses sheet metal to form, and the elastic contact chip that is arranged at this grounded parts with the contacted position of drum axle, the sliding contact parts that is made of electroconductive resin is set.
4. the earthing device of the photosensitive drums in the electro-photography apparatus according to claim 3 is characterized in that,
Described sliding contact parts is formed tubular, and can be installed in described elastic contact chip with the drum contact site that is coupling and touches.
5. according to the earthing device of the photosensitive drums in claim 3 or the 4 described electro-photography apparatus, it is characterized in that,
Described sliding contact parts is being implemented chamfering with the described drum end of touching that is coupling.
6. according to the earthing device of the photosensitive drums in each described electro-photography apparatus in the claim 3～5, it is characterized in that,
The elastic contact chip of described grounded parts is being formed the anticreep edge of sliding contact parts with the be coupling both side edges of the contact site that touches of drum, with the sliding contact parts immobilization that outer embedding shape can be installed.
7. according to the earthing device of the photosensitive drums in each described electro-photography apparatus in the claim 3～5, it is characterized in that,
The contact site that is coupling and touches with drum that described sliding contact parts uses bonding agent and be fixed in described elastic contact chip under the state that conducts.
8. the earthing device of the photosensitive drums in the electro-photography apparatus according to claim 1 is characterized in that,
Described grounded parts uses sheet metal to form, and at position that the elastic contact chip with being arranged at described grounded parts of described drum axle contacts, the electric conductivity cylindrical shell cylindraceous that is made of electroconductive resin is installed sliding freely, and described elastic contact chip is contacted with the electric conductivity cylindrical shell.
9. the earthing device of the photosensitive drums in the electro-photography apparatus according to claim 8 is characterized in that,
Described elastic contact chip utilization forms from the outstanding claw of the inner peripheral of described ground plate, and contacts with described electric conductivity cylindrical shell by this elastic contact chip, limits this electric conductivity cylindrical shell moving on the drum axle.
10. the earthing device of the photosensitive drums in the electro-photography apparatus according to claim 8 is characterized in that,
In the both ends of the surface of described elastic contact chip and described electric conductivity cylindrical shell, the end face of opposition side of described grounded parts one side of configuration, the outer peripheral face contact of perhaps described electric conductivity cylindrical shell.
11. the earthing device according to the photosensitive drums in each described electro-photography apparatus in the claim 1,3～10 is characterized in that,
Described grounded parts is stainless steel.
12. the earthing device of the photosensitive drums in the electro-photography apparatus according to claim 1 is characterized in that,
Described grounded parts uses electroconductive resin to form coil spring shape, and has the contact chip that contacts with photosensitive drums at the outer circumferential side of the big footpath of spiral side, and the path side end of spiral footpath side within it forms the elastic contact chip that is coupling and touches with drum.
13. the earthing device of the photosensitive drums in the electro-photography apparatus according to claim 12 is characterized in that,
The elastic contact chip of described grounded parts flexibly is external in described drum axle under the state after the hole enlargement.
14. the earthing device according to the photosensitive drums in each described electro-photography apparatus in the claim 1,2,3,8,12 is characterized in that,
Described electroconductive resin is that volume resistivity is 5 * 10
2Below the Ω cm.
15. the earthing device according to the photosensitive drums in each described electro-photography apparatus in the claim 1,2,3,8,12,14 is characterized in that,
Described electroconductive resin is combined with the conductive material that 17 weight portions are above and 85 weight portions are following for base resin 100 weight portions.
16. the earthing device of the photosensitive drums in the electro-photography apparatus according to claim 15 is characterized in that,
Described conductive material is a carbon dust.
17. the earthing device according to the photosensitive drums in each described electro-photography apparatus in the claim 1,2,3,8,12,14,15 is characterized in that,
The base resin of described electroconductive resin has sliding properties.
18. the earthing device according to the photosensitive drums in each described electro-photography apparatus in the claim 1,2,3,8,12,14,15,17 is characterized in that,
The base resin of described electroconductive resin is at least a resin of selecting from polyacetal resin, polyamide, polyvinyl resin, pet resin, polycarbonate resin, polyflon, polyphenylene sulfide, polybutylene terephthalate resin, acrylic resin.
19. the earthing device according to the photosensitive drums in each described electro-photography apparatus in the claim 1～18 is characterized in that,
Described insulativity flange is the body that is injected into of synthetic resin.
20. the earthing device according to the photosensitive drums in each described electro-photography apparatus in the claim 1～19 is characterized in that,
At least one side of described insulativity flange is the cogged body that is injected into that is shaped integratedly.
21. the earthing device according to the photosensitive drums in each described electro-photography apparatus in the claim 1～20 is characterized in that,
The contact site of ground plate that contact, that be arranged at described grounded parts is disposed between described insulativity flange and the described photosensitive drums with described photosensitive drums, and is clipped between the two.
22. the photoconductive drum unit of an image processing system is characterized in that,
Each described earthing device in the claim 1～21 is embedded the inside of photosensitive drums.
Applications Claiming Priority (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-131411 | 2007-05-17 | ||
| JP2007131411 | 2007-05-17 | ||
| JP2008007899 | 2008-01-17 | ||
| JP2008007872 | 2008-01-17 | ||
| JP2008-007899 | 2008-01-17 | ||
| JP2008-007872 | 2008-01-17 | ||
| JP2008-034604 | 2008-02-15 | ||
| JP2008034604 | 2008-02-15 | ||
| JP2008100442A JP5273445B2 (en) | 2007-05-17 | 2008-04-08 | Photosensitive drum grounding device and image forming device photosensitive drum unit |
| JP2008-100442 | 2008-04-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101308342A true CN101308342A (en) | 2008-11-19 |
| CN101308342B CN101308342B (en) | 2012-12-19 |
Family
ID=41189098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810097167 Expired - Fee Related CN101308342B (en) | 2007-05-17 | 2008-05-19 | Grounding device of sensitometric drum and sensitometric drum unit of image forming device |
Country Status (2)
| Country | Link |
|---|---|
| JP (2) | JP5273445B2 (en) |
| CN (1) | CN101308342B (en) |
Cited By (6)
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| CN102217978A (en) * | 2011-06-03 | 2011-10-19 | 刘国志 | Adjustable stomatological impression tray |
| US8073362B2 (en) | 2008-03-10 | 2011-12-06 | Brother Kogyo Kabushiki Kaisha | Photosensitive body having electrical connection arrangement |
| US8086140B2 (en) | 2008-03-10 | 2011-12-27 | Brother Kogyo Kabushiki Kaisha | Photosensitive body having electrical connection arrangement |
| CN102520597A (en) * | 2011-12-23 | 2012-06-27 | 深圳创怡兴实业有限公司 | Photosensitive drum device and grounding structure thereof |
| CN102645868A (en) * | 2011-02-17 | 2012-08-22 | 株式会社理光 | Electrification mechanism, image carrier unit, process cartridge, image forming apparatus, and electrification method |
| CN108828911A (en) * | 2018-05-07 | 2018-11-16 | 浙江普崎数码科技有限公司 | A kind of digital-code printer convenient for collecting paper |
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| JP5742162B2 (en) * | 2009-10-27 | 2015-07-01 | 株式会社リコー | Energizing mechanism, image carrier unit, process cartridge, belt unit, and image forming apparatus |
| JP5424110B2 (en) * | 2009-12-04 | 2014-02-26 | 株式会社リコー | Rotating body grounding structure, image carrier unit, process unit, image forming apparatus, and rotating body grounding method |
| JP6972805B2 (en) * | 2017-09-11 | 2021-11-24 | 富士フイルムビジネスイノベーション株式会社 | Image holder, image forming unit, image forming device |
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| US8073362B2 (en) | 2008-03-10 | 2011-12-06 | Brother Kogyo Kabushiki Kaisha | Photosensitive body having electrical connection arrangement |
| US8086140B2 (en) | 2008-03-10 | 2011-12-27 | Brother Kogyo Kabushiki Kaisha | Photosensitive body having electrical connection arrangement |
| CN102645868A (en) * | 2011-02-17 | 2012-08-22 | 株式会社理光 | Electrification mechanism, image carrier unit, process cartridge, image forming apparatus, and electrification method |
| CN102645868B (en) * | 2011-02-17 | 2015-11-25 | 株式会社理光 | Electrical conduction mechanism, image carrier unit, handle box, imaging device and electrifying method |
| CN102217978A (en) * | 2011-06-03 | 2011-10-19 | 刘国志 | Adjustable stomatological impression tray |
| CN102520597A (en) * | 2011-12-23 | 2012-06-27 | 深圳创怡兴实业有限公司 | Photosensitive drum device and grounding structure thereof |
| CN108828911A (en) * | 2018-05-07 | 2018-11-16 | 浙江普崎数码科技有限公司 | A kind of digital-code printer convenient for collecting paper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101308342B (en) | 2012-12-19 |
| JP2013101385A (en) | 2013-05-23 |
| JP5339169B2 (en) | 2013-11-13 |
| JP2009217226A (en) | 2009-09-24 |
| JP5273445B2 (en) | 2013-08-28 |
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