CN102073240A - Image-forming apparatus - Google Patents
Image-forming apparatus Download PDFInfo
- Publication number
- CN102073240A CN102073240A CN2010102073723A CN201010207372A CN102073240A CN 102073240 A CN102073240 A CN 102073240A CN 2010102073723 A CN2010102073723 A CN 2010102073723A CN 201010207372 A CN201010207372 A CN 201010207372A CN 102073240 A CN102073240 A CN 102073240A
- Authority
- CN
- China
- Prior art keywords
- lid
- frame parts
- turning axle
- patchhole
- space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Electrophotography Configuration And Component (AREA)
Abstract
An image-forming apparatus includes: a plural image-holding members, each image-holding member holding an image and being rotatable around a rotation shaft; a frame member that at least partially defines a space for accommodating the plural image-holding members therein; a cover provided to the frame member to open and close the space with respect to an outside, an inner side of the cover being formed with rotation shaft insertion holes each for receiving an end portion of the rotation shaft of a corresponding one of the image-holding members accommodated in the space; a supporting shaft that supports the cover such that the cover is pivotable with respect to the frame member, the supporting shaft being inserted into a supporting shaft insertion hole provided to the frame member or to the cover, the supporting shaft insertion hole being elongated in a direction having a vertical component when the cover closes the space; and a positioning mechanism that positions the cover with respect to the frame member when the cover closes the space, the positioning mechanism including at least two projections that project from one of the frame member and the cover, and that are spaced apart from each other in a direction of an axis of the supporting shaft, and projection insertion holes provided to the other one of the frame member and the cover to receive corresponding projections when the cover closes the space.
Description
Technical field
The present invention relates to a kind of image forming apparatus.
Background technology
In image forming apparatus, need the accurately image holding member of location maintenance image.JP2006-3735 A and JP2005-266781 A all disclose and have utilized location-plate positioning image holding member, roller and/or handle box.JP2004-212986 discloses a plurality of handle boxes has been arranged on the stayed surface of arranging with differing heights.
Summary of the invention
The objective of the invention is to, in image forming apparatus with the lid that can be opened and closed and be provided with a plurality of patchholes, each patchhole receives and supports the turning axle of an image holding member of correspondence of a plurality of image holding member, when described turning axle is inserted into described inserting in the hole, can make corresponding the inserting in the hole of the easier insertion in end of the turning axle of image holding member, thereby reduce the danger that stops the misalignment of inserting.
To achieve these goals, a first aspect of the present invention provides a kind of image forming apparatus, and this image forming apparatus comprises: a plurality of image holding member, and each image holding member keeps image and can rotate around turning axle; Frame parts, this frame parts is defined for the space that holds described a plurality of image holding member at least in part; Lid, this lid is arranged on the described frame parts, with with respect to external opening and close described space, the inboard of this lid is formed with the turning axle patchhole, and each turning axle patchhole all is used for receiving the end of turning axle of a described image holding member of the correspondence that is contained in described space; Back shaft, this back shaft supports described lid, make described lid to pivot with respect to described frame parts, described back shaft insertion is arranged on described frame parts or the described back shaft that covers inserts in the hole, when described lid was closed described space, described back shaft patchhole was elongated having on the direction of vertical component; And detent mechanism, when described lid is closed described space, this detent mechanism makes described lid locate with respect to described frame parts, this detent mechanism comprises: at least two teats, described at least two teats from described frame parts and described lid is outstanding, and is spaced apart from each other along the axis direction of described back shaft; And the teat patchhole, described teat patchhole is arranged on in described frame parts and the described lid another, to receive corresponding teat when described lid is closed described space.
In a second aspect of the present invention, a kind of image forming apparatus is provided, this image forming apparatus comprises: a plurality of image holding member, each image holding member keeps image and can rotate around turning axle; First frame parts; Second frame parts, this second frame parts is relative with described first frame parts, between described first and second frame parts, to be defined for the space that holds described a plurality of image holding member at least in part, the inboard of this second frame parts is formed with the second turning axle patchhole, and each described second turning axle patchhole all is used for receiving the end of described turning axle of a described image holding member of the correspondence that is contained in described space; Lid, this lid is arranged on described first frame parts, with with respect to external opening with close described space, the inboard of this lid is formed with the first turning axle patchhole, and each described first turning axle patchhole all is used for receiving the end of described turning axle of a described image holding member of the correspondence that is contained in described space; Back shaft, this back shaft supports described lid, make described lid to pivot with respect to described first frame parts, described back shaft insertion is arranged on described first frame parts or the described back shaft that covers inserts in the hole, when described lid was closed described space, described back shaft patchhole was elongated having on the direction of vertical component; And detent mechanism, when described lid is closed described space, this detent mechanism makes described lid locate with respect to described first frame parts, this detent mechanism comprises: at least two teats, described at least two teats from described first frame parts and described lid is outstanding, and is spaced apart from each other along the axis direction of described back shaft; And the teat patchhole, described teat patchhole is arranged on in described first frame parts and the described lid another, to receive corresponding teat when described lid is closed described space.
In a third aspect of the present invention, described back shaft patchhole can be avette or elliptical shape.
In a fourth aspect of the present invention, the described turning axle of each image holding member can have tapered end, thereby the diameter of described turning axle is reduced towards end.
In a fifth aspect of the present invention, each in described at least two teats all can have tapered end, thereby the diameter of described teat is reduced towards end.
According to a first aspect of the invention, not that elongated situation is compared with the back shaft patchhole, the end of easier turning axle with each image holding member is inserted and is arranged in the described corresponding rotation shaft insertion hole that covers, thereby reduces the danger that stops the misalignment of inserting.
According to a second aspect of the invention, not that elongated situation is compared with the back shaft patchhole, the end of easier turning axle with each image holding member is inserted and is arranged in the described corresponding rotation shaft insertion hole that covers, thereby reduces the danger that stops the misalignment of inserting.
According to a third aspect of the invention we, being inserted into the back shaft that described back shaft inserts in the hole can rotate reposefully.
According to a forth aspect of the invention, the situation that is not provided with tapered end with turning axle is compared, and easier turning axle with each image holding member inserts corresponding inserting in the hole.
According to a fifth aspect of the invention, the situation that is not provided with tapered end with teat is compared, and is easier of corresponding the inserting in the hole of each teat insertion.
Description of drawings
Describe illustrative embodiments of the present invention in detail now with reference to following accompanying drawing, among the figure:
Fig. 1 is the synoptic diagram that the structure of image forming apparatus according to an illustrative embodiment of the invention is shown;
Fig. 2 is the stereographic map that casing structure is shown;
Fig. 3 is the stereographic map that the image formation unit in the main body that is installed in image forming apparatus is shown;
Fig. 4 is the planimetric map that first back up pad is shown;
Fig. 5 is the side view of the lid supporting mechanism seen along the direction of being represented by the arrow V-V among Fig. 4;
Fig. 6 is and the similar stereographic map of Fig. 2, and the lid that partly moves towards off-position is shown;
Fig. 7 is and the similar stereographic map of Fig. 6, and mobile the lid than more close off-position among Fig. 6 is shown;
Fig. 8 is and the similar stereographic map of Fig. 6, and mobile the lid than more close off-position among Fig. 7 is shown;
Fig. 9 A to 9C cuts open the cut-open view of getting along the line IXb-IXb of Fig. 7 or along the line IXc-IXc of Fig. 8, illustrates to cover near off-position and moves; And
Figure 10 A and 10B are the stereographic maps of operation that the locking mechanism of lid is shown.
Embodiment
(1. illustrative embodiments)
One side of the image forming apparatus housing such as printer or duplicating machine is provided with lid, for example, is arranged in such a way, that is: lid can be opened and closed, so that maintenance or replacing component parts, or remove paperboard.Below, as embodiment, illustrative embodiments of the present invention is described with this image forming apparatus.Fig. 1 schematically illustrates the interior structure of main body of image forming apparatus.
In following explanation, as shown in FIG., when the user when image forming apparatus is watched in the front portion of image forming apparatus, horizontal direction is expressed as X-direction, respectively right of observing from the user by X (+) and X (-) expression and left to; The fore-and-aft direction of image forming apparatus is expressed as Y direction, respectively by rear and the place ahead of Y (+) and Y (-) presentation video forming device; Vertical direction is expressed as Z-direction, respectively by Z (+) and Z (-) expression above and below.
(structure of image forming apparatus)
At first, will the internal structure and the operation of image forming apparatus 1 be described.Image forming apparatus 1 is suitable for constituting panchromatic printer, and comprise the graphics processing unit (not shown), this graphics processing unit to receive from the device such as scanner or personal computer (not shown) or carry out Flame Image Process by the view data of receptions such as telephone wire (not shown).Four image formation unit 2Y, 2M, 2C, the 2K that is respectively applied for yellow (Y), carmetta (M), cyan (C) and black (K) is set in the image forming apparatus 1.Image formation unit 2Y, 2M, 2C, 2K are arranged to be spaced apart from each other generally along horizontal direction, and extend abreast, (therefore the vertical position of image formation unit 2Y, 2M, 2C, 2K reduces respectively with this order, the vertical position of image formation unit 2Y is than the vertical position height of image formation unit 2K), whereby, placement of images forms the plane of unit 2Y, 2M, 2C, 2K with respect to horizontal direction (for example 10 degree) inclination at a certain angle.By image formation unit 2Y, 2M, 2C, 2K being arranged in respect in the horizontal direction plane inclined, compare with the situation that image formation unit 2Y, 2M, 2C, 2K are arranged in a horizontal plane, reduced lateral dimension.
Four image formation unit 2Y, 2M, 2C, 2K all have essentially identical structure, and comprise: photosensitive drums 3, this photosensitive drums 3 are driven and rotate with certain speed around turning axle 3A (referring to Fig. 3), and as image holding member; Primary charging roller 4, this primary charging roller 4 is to the surface charging of photosensitive drums 3; Developing cell 6, the electrostatic latent image that this developing cell 6 utilizes toner to develop and form on the photosensitive drums 3 by the image exposure that is undertaken by exposing unit 5 (after a while describe); And cleaning unit 7, the surface of these cleaning unit 7 cleaning photosensitive drums 3.Photosensitive drums 3 is that the drum of 30mm and the organic photo parts that have external coating in its surface constitute by for example having diameter.Photosensitive drums 3 is by the CD-ROM drive motor (not shown) rotation as driver element.Charging roller 4 is the roller shape charger for being made of core bar for example, and this core bar is coated with that synthetic resin or rubber are made and has the conductive layer of regulating resistance, applies the charging bias voltage to the core bar of charging roller 4.In addition, be used to remove the surface that is arranged to contact charging roller 4 such as the clearer of the impurity such as lip-deep toner that adhere to charhing unit 4.
In following explanation, under the situation that need not differentiate between images formation unit 2Y, 2M, 2C, 2K, image formation unit is called image formation unit 2 simply.
Below image formation unit 2, exposing unit 5 is set, be used for exposing according to view data.Exposing unit 5 has four semiconductor laser unit (not shown)s, is used to launch the laser beam according to the view data modulation.Scan by polygon mirror deflection from four bundle laser beam of these semiconductor laser unit emissions, and be radiated at by the optical element such as lens or mirror (not shown) on the photosensitive drums 3 of each image formation unit 2.Exposing unit 5 extends along the downside of four image formation units 2, and as previously described, these four image formation units 2 are arranged in respect in the horizontal direction plane inclined.Therefore, it is identical entirely for each image formation unit 2Y, 2M, 2C, 2K to be radiated at the optical path length of the laser beam on the photosensitive drums 3.
Exposing unit 5 is arranged to be common to each image formation unit 2, and sequentially receives the view data of respective color from graphics processing unit.Be radiated on the surface of corresponding photosensitive drums 3, from exposing unit 5 emitted laser bundles according to view data to form electrostatic latent image thereon.The electrostatic latent image that is formed on the photosensitive drums 3 of respective color develops by developing cell 6Y, 6M, 6C, 6K, to form the toner image of respective color.The toner image that order is formed on the respective color on the photosensitive drums 3 of image formation unit 2 is transferred to intermediate transfer belt 10 by first transfer roll 11 multiplely, this intermediate transfer belt 10 is arranged in the top of each image formation unit 2 obliquely, and as intermediate transfer element.
It should be noted that intermediate transfer belt 10, first transfer roll 11, driven roller 12, backing roll 13, idler roller 14, idler rollers 15 etc. are integrated into the single unit that is known as intermediate transfer unit 9.
Across intermediate transfer belt 10 and backing roll 13 relative positions secondary transfer roller 17 is being set, this secondary transfer roller 17 is pushed against on the intermediate transfer belt 10.Secondary transfer roller 17 is used to make the toner image secondary transfer printing of transfer printing for the first time on intermediate transfer belt 10 at the recording sheet 18 as recording medium.Particularly, when recording sheet 18 is mobile between secondary transfer roller 17 and intermediate transfer belt 10, secondary transfer roller 17 is pressed against recording sheet 18 on the intermediate transfer belt 10, whereby, with the toner image of yellow (Y), carmetta (M), cyan (C) and the black (K) of transfer printing overlappingly on intermediate transfer belt 10 by pressure and electrostatic force and transfer printing on recording sheet 18.There is the recording sheet 18 of the toner image of each color upwards to be transported to fixation unit 19 transfer printing.Fixation unit 19 applies heat and pressure to recording sheet 18, with the toner image of each color on recording sheet 18.Afterwards, recording sheet 18 passes the outlet roller 20 of fixation unit 19, and is transported to distributing roller 22 by sheet material discharge path 21, and recording sheet 18 is discharged from the sheet material take-up reel 23 on the top that is arranged at image forming apparatus 1 from this distributing roller 22.
Have given size and be contained in the sheet material accommodation section 24 that is arranged in the image forming apparatus 1, and be transported to alignment rolls 28 by a ground from sheet material accommodation section 24 by sheet material feed rolls 25 and a pair of roller 26 that is used for sheet separation and conveying by the recording sheet 18 that prescribed material is made.Recording sheet 18 is further transported to the secondary transfer printing position that is defined between intermediate transfer belt 10 and the secondary transfer roll 17 by alignment rolls 28 from this alignment rolls 28, and wherein alignment rolls 28 is with predetermined timing rotation.
Toner Cartridge 29Y, 29M, 29C, 29K as toner container are arranged between sheet material take-up reel 23 and the intermediate transfer belt 10.Toner Cartridge 29Y, 29M, 29C and 29K are respectively to developing cell 6Y, 6M, 6C and 6K supplying toner.
(structure of housing)
Next, the structure of the main body (or housing) 40 of image forming apparatus 1 is described with reference to Fig. 1 and Fig. 2.Fig. 2 is the stereographic map that the structure of main body 40 schematically is shown, and this main body 40 limits the profile of image forming apparatus 1.
As shown in Figure 2, main body 40 comprises that vertically four pillar 41A that (Z-direction) extend are to 41D be connected a plurality of beams 42 between the pillar 41A to 41D.In addition, be arranged between the top of front side (or Y (-) side) pillar 41A, 41B, be arranged between the top of rear side (or Y (+) side) pillar 41C, 41D as the afterframe 44 of second frame parts as the front baffle 43 of first frame parts.Therefore, front baffle 43 and afterframe 44 are toward each other.Afterframe 44 is formed with the through hole 45 with general rectangular shape.Front baffle 43 is provided with protecgulum 50, and this protecgulum 50 can be along being moved by the direction shown in the arrow " a ", to open and to close opening 46 (referring to Fig. 3).
In addition, as shown in fig. 1, main body 40 comprises demarcation strip 47, should go up demarcation strip 47 and be in extension between framework 43 and 44 in the top position (the perhaps position of Z (+) side of exposing unit 5) of exposing unit 5, with the space that exposing unit 5 is held in qualification, wherein go up demarcation strip 47 and be fixed to framework 43 and 44 by welding etc. in this space.
As shown in Figure 2, be attached to front baffle 43 and comprise first back up pad 70 with the protecgulum 50 that is opened and closed, this first back up pad 70 has the first turning axle patchhole 72.Although do not illustrate in the drawings, protecgulum 50 can have the outer tabular parts of the outside surface that is attached to first back up pad 70 made by plastics etc. the surface of Y (-) direction (perhaps towards).Afterframe 44 surface (towards the surface of Y (-) direction) within it is provided with second back up pad 80 with second turning axle patchhole 82.
(protecgulum 50 (first back up pad 70) and the structure that covers supporting mechanism 60)
Protecgulum 50 (first back up pad 70) and lid supporting mechanism 60 will be described now.
Fig. 3 is the stereographic map that illustrates under the state of image formation unit 2 in the main body 40 that is installed in image forming apparatus 1, and Fig. 4 is the planimetric map that first back up pad 70 is shown, and Fig. 5 is the side view of seeing along the direction of being represented by the arrow V-V among Fig. 4.
As shown in Fig. 2 and 3, protecgulum 50 is attached to front baffle 43 by a pair of lid supporting mechanism 60 as the pivot center, this supports the bottom of protecgulum 50 to lid supporting mechanism 60, whereby, protecgulum 50 can be along being pivoted by the direction shown in the arrow " a ", with respect to external opening with close the inside that is limited to main body 40 and have the space of opening 46.In this space, arrange four image formation units 2, make vertically (or photosensitive drums 3 axially) of each image formation unit 2 extend along the fore-and-aft direction (perhaps along Y direction) of image forming apparatus 1.Be installed in image formation unit 2 in the described space and closing with protecgulum 50 under the state of opening 46, the turning axle 3A of each photosensitive drums 3 is supported between first back up pad 70 and second back up pad 80.Under this holding state, image formation unit 2 and last demarcation strip 47 are spaced apart.
Under situation about image forming apparatus 1 being arranged on non-flat forms or the non-horizontal surface, for example, the framework of image forming apparatus 1 can deform, and forms bend in last demarcation strip.This can make the bend of demarcation strip 47 contact with image formation unit 2, makes the position of photosensitive drums 3 relative to each other change whereby, and this can cause the misalignment transfer printing of toner image on recording sheet 18 of each color again.In image forming apparatus 1 according to this illustrative embodiments, each image formation unit 2 is retained with last demarcation strip 47 spaced apart, therefore, avoid loose of demarcation strip 47 to contact, and suppress any variation of the relative position between the photosensitive drums 3 with image formation unit 2.
Each covers supporting mechanism 60 and comprises: carriage 61, and this carriage 61 is along forwards outstanding from front baffle 43 to (perhaps Y (-) direction); Support chip 62, this support chip 62 is outstanding from first back up pad 70; And back shaft 65.Framework 61 all has a pair of relative wall that is connected by connecting wall with support chip 62, makes that cross sectional shape is the shape of symbol " U " substantially, and is being formed with the back shaft patchhole in the wall relatively.The carriage 61 of supporting mechanism 60 is respectively covered in back shaft 65 insertions and the back shaft of support chip 62 inserts in the hole, thus so that first back up pad 70 (protecgulum 50) is attached to front baffle 43 pivotly.As shown in Figure 4, in lid supporting mechanism 60,60, the axis direction of each back shaft 65 is corresponding with the pivot axis O-O of protecgulum 50, and pivot axis O-O is with respect to the horizontal direction certain angle (for example 10 degree) that tilts, and this angle equals the pitch angle that placement of images wherein forms the plane of unit 2 substantially.
As shown in Figure 5, each back shaft 65 has circular cross section, and the back shaft patchhole (not shown) that is formed in each carriage 61 also has round-shaped.On the other hand, the back shaft patchhole 63 that is formed in each support chip 62 is to have the elongated hole of cavetto end, when protecgulum 50 is closed and when sealing described space, this hole is elongated (perhaps along be elongated to the vertical direction of small part) having on the direction of vertical component.Particularly, back shaft 65 has the circular cross section that diameter is 5mm, and back shaft patchhole 63 is that 5mm and major axis dimension are the elongated hole of 6mm for minor axis dimension.This elongated hole can have elliptical shape, by being constituted by the semicircle of two equal and parallel isolated two congruences in limit.
First back up pad 70 will be described now.As shown in Figure 4, first back up pad 70 is formed by the plate member of basic rectangle.A vertical limit along first back up pad 70 forms rib 71, and the support chip 62,62 of lid supporting mechanism 60,60 is arranged on this rib 71.In addition, the first turning axle patchhole 72 that all has basic pentagon shape and receive the turning axle 3A of corresponding photosensitive drums 3 forms that the thickness direction along plate member extends in position that the vertical line segment from each first turning axle patchhole 72 to pivot axis O-O has an equal length.Like this, when protecgulum 50 pivots when closing opening 46 around pivot axis O-O, the end of turning axle 3A began to insert in the corresponding first turning axle patchhole 72 in the identical time.As shown in Figure 9, each turning axle 3A has tapered end 3B, makes diameter reduce towards an end, so that the end of turning axle 3A is inserted in the first turning axle patchhole 72.
First back up pad 70 and second back up pad 80 are made up of the sheet metal of same material and same thickness.When being drilled with turning axle patchhole 72,82, first back up pad 70 stacked on top of each other and second back up pad 80 are bored a hole.Like this, because of the issuable burr of boring and the distortion can be basic identical between the turning axle patchhole 72,82 of correspondence.This helps to suppress the positional misalignment between the end of each turning axle 3A.
In addition, as shown in Figure 4, each first turning axle patchhole 72 has hypotenuse section 72A, 72B, and hypotenuse section 72A, the 72B axis that (perhaps Z axle) extends with respect to vertically is asymmetric.Particularly, left hypotenuse section 72B is bigger than right hypotenuse section 72A with respect to the pitch angle of Z axle.Like this, even the tapered end 3B of turning axle 3A edge is forwards downward-sloping to (or Y (-) direction), end 3B also inserts in the first turning axle patchhole 72 easily.
As shown in Figure 3, second back up pad 80 forms by the plate member that makes basic rectangle is crooked, make second back up pad 80 form along its vertical limit and along the outstanding rib 81,81 of outward direction (Y (+) direction), an end of each rib 81,81 is fixedly attached to the inside surface of afterframe 44 by laser bonding etc.Second back up pad 80 be formed with the second turning axle patchhole 82 that all has basic pentagon shape and receive the turning axle 3A of corresponding photosensitive drums 3 ..., 82, make patchhole 82 ..., 82 vertical (or along X-direction) arrangements along second back up pad.In addition, force application spring 83 is set to the inside surface (in the face of the surface of Y (-) direction) of the part above each second turning axle patchhole 82 of second back up pad 80.This force application spring is a kind ofly to form by plate being bent to the cross section with basic V-shape, and be attached to second back up pad 80, make bend inwardly outstanding, and bend extends in the second corresponding turning axle patchhole 82 along outward direction (Y (+) direction) with part between the free end, with as pressing component.By this structure, push the end in the insertion turning axle patchhole 82 of turning axle 3A along downward direction (Z (-) direction) by force application spring 83.
Next, will illustrate and cover detent mechanism 90A, 90B.As shown in Figure 3, detent mechanism 90A, 90B are arranged on the top of front baffle 43, and are spaced apart from each other along the direction (X-direction) of pivotal axis O-O.The building block that it should be noted that right detent mechanism 90A is represented that by the Reference numeral with suffix letter " A " building block of left detent mechanism 90B is represented by the Reference numeral with suffix letter " B ".Yet, when need not to distinguish them, omit letter.
Detent mechanism 90 comprises: register pin 91, and this register pin 91 is set to the top of front baffle 43, and outstanding from this top; And pilot hole 93, this pilot hole 93 is formed in first back up pad 70.Therefore, register pin 91 is as teat, and pilot hole 93 is as the teat patchhole.Each register pin 91 has tapered end 92, makes its diameter reduce towards free end.During first back up pad 70 moved with sealing opening 46, register pin 91 sequentially inserted in the corresponding pilot hole 93.The length of giving prominence to from front baffle 43 of register pin 91 is all identical with 90B for each detent mechanism 90A.
The pilot hole 93A that it shall yet further be noted that the right side is that along continuous straight runs (X-axis line direction) extends and have the elongated hole of cavetto end.Therefore, even protecgulum 50 is unexpectedly mobile along the bearing of trend of back shaft 65, register pin 91A also inserts among the pilot hole 93A easily.
In addition,, locking mechanism 95 is set in the outside of first back up pad 70, firmly keeping the protecgulum 50 of sealing opening 46, and along end that downward direction (Z (-) direction) is pushed turning axle 3A.As shown in Figure 10 A, 10B, this locking mechanism 95 comprises: bar 96, and this bar 96 can be along being rotated by the direction shown in the arrow T; Movable platen 98, this movable platen 98 engages with bar 96 by gear train 97, and an end is formed with locking bolt 98A; And ram (strike) 99, this ram 99 is arranged on the front baffle 43, is used for engaging with locking bolt 98A.When bar 96 edges of locking mechanism 95 were rotated by the direction shown in the arrow T after protecgulum 50 is closed opening 46, locking bolt 98A was along being moved by the direction shown in the arrow D, to be inserted in the ram 9, so that protecgulum 50 is fixed to front baffle 43.In addition, the force application spring (not shown) that is arranged on the movable platen 98 is pushed the end of inserting the turning axle 3A in the first turning axle jack 72 along downward direction (Z (-) direction), firmly to keep the end of turning axle 3A thus.
(being used to support the operation of first back up pad 70 of photosensitive drums 3)
Be used to support the operation of first back up pad 70 of the turning axle 3A of photosensitive drums 3 now with reference to Fig. 3, Fig. 6 to 8 and Fig. 9 A to 9C explanation.Fig. 6 to 8 is stereographic maps that the operation that direction that first back up pad 70 closes opening 46 towards this first back up pad 70 moves is shown.Fig. 9 A to 9C cuts open the cut-open view of getting along the line IXb-IXb of Fig. 7 or along the line IXc-IXc of Fig. 8, so that near first back up pad 70 moving off-position to be shown.
At first, as shown in Figure 3, under first back up pad 70 was opened with the state of opening opening 46, each image formation unit 2 inserted in the space that is defined between framework 43 and 44 along last demarcation strip 47.It should be noted that in Fig. 3, Fig. 6 to 8 and Fig. 9 A to 9C, an image formation unit 2 only is shown, and omitted the diagram of other three image formation units 2.Under this state, each image formation unit 2, be received in the correspondence second turning axle patchhole 82 of second back up pad 80 towards an end of direction of insertion one end of backward directions (perhaps towards), therefore, each image formation unit 2 is along forwards downward-sloping to (Y (-) direction).
Should also be noted that, when protecgulum 50 (first back up pad 70) is opened when being positioned in the surface level (X-Y plane), the minor axis of the axis of support patchhole 63 of lid supporting mechanism 60 vertically (Z-direction) extends, and the major axis of the back shaft patchhole 63 of lid supporting mechanism 60 extends along fore-and-aft direction (Y direction), therefore, protecgulum 50 can move in by the scope that major axis dimension allowed of back shaft patchhole 63 along Y (+) and Y (-) direction.
Then, first back up pad 70 (protecgulum 50) beginning is along being rotated by the direction shown in the arrow " a ", to close opening 46.Along with the more approaching gravity direction (Z-direction) that is parallel in the surface of first back up pad 70 (protecgulum 50), the also more approaching gravity direction (Z-direction) that is parallel to of the major axis of back shaft patchhole 63.As a result, as shown in Fig. 9 A, protecgulum 50 (first back up pad 70) is because of its deadweight moves down, whereby support chip 62 limit back shaft patchholes 63, (part of the upper end among Fig. 9 A (or Z (+) side) contacts with back shaft 65 along an end of long axis direction.When protecgulum 50 (first back up pad 70) when this state is further rotated, the tapered end 3B of each turning axle 3A begins to be inserted in one of the correspondence of the first turning axle patchhole 72, and the first turning axle patchhole 72 is than the more close pivot axis O-O of pilot hole 93A, 93B.By this insertion process, as shown in Fig. 9 A, the bottom (Z (-) sidepiece) at the edge of the downside of tapered end 3B (Z (-) side surface) the contact first turning axle patchhole 72.Since back shaft 65 stop first back up pad 70 move down (along (Z (-) direction), therefore, when first back up pad 70 when off-position is advanced, the tapered end 3B of turning axle 3A upwards (moves along (Z (+) direction).
Then, as shown in Fig. 9 B, the tapered end 92A of the register pin 91A of detent mechanism 90A is inserted among the pilot hole 93A.When tapered end 92A began to be inserted among the pilot hole 93A, the top at the edge of pilot hole 93A contacted with tapered end 92A, and therefore, along with continuing to insert, as shown in Fig. 9 C, first back up pad 70 upwards (along Z (+) direction) moves.In addition, during the positioning action of detent mechanism 90A, the register pin 91B of detent mechanism 90B begins to be inserted among the pilot hole 93B.When first back up pad 70 (protecgulum 50) has moved to when closing the position of opening 46, finish the location that provides by detent mechanism 90A, 90B.
Afterwards, the locking mechanism 95 shown in Figure 10 A and the 10B is operated and first back up pad 70 (protecgulum 50) is fixed to front baffle 43, and by movable platen 98 each turning axle 3A is firmly remained in the first corresponding turning axle patchhole 72.Therefore like this, realize each turning axle 3A location between back up pad 70 and 80, each image formation unit 2 is supported for last demarcation strip 47 spaced apart.
As previously mentioned, the back shaft patchhole 63 of lid supporting mechanism 60 is along (in the vertical direction when first back up pad 70 is arranged in off-position (or Z (-)/Z (+) direction) is elongated on the direction on the surface of first back up pad 70.Therefore, when closing opening 46 when the rotation of first back up pad 70, first back up pad 70 moves down, and makes after first back up pad 70 is upwards drawn and supported by detent mechanism 90A, 90B, and end 3B is captured in the first turning axle patchhole 72.Like this, when the turning axle 3A of each photosensitive drums 3 is inserted in the first corresponding turning axle patchhole 72 when supporting photosensitive drums 3, has reduced the end 3B that stops turning axle 3A and inserted misalignment risk in the first turning axle patchhole 72.
In addition, the detent mechanism 90B in left side is positioned to far away apart from pivot axis O-O than the detent mechanism 90A on right side, therefore, after finishing the location on right side, carries out the location in left side.The pilot hole 93A on right side is the elongated hole that along continuous straight runs (X-direction) extends, thereby, pilot hole 93A makes (X-direction) on the horizontal direction have the position of determining first back up pad, 70 in the vertical directions (Z-direction) under the situation of certain degree of freedom, and the pilot hole 93B in left side determines the position on the horizontal direction (X-direction).
For the location of corresponding turning axle 3A, when protecgulum 50 moved to off-position, the end 3B of turning axle 3A began to be inserted in the first corresponding turning axle patchhole 72, and the first turning axle patchhole 72 is identical apart from the distance of pivot axis O-O.Then, when right detent mechanism 90A begins to operate so that the right part of protecgulum 50 when moving to the normal position, left detent mechanism 90B has to begin positioning action, and therefore, the left part of protecgulum 50 is positioned to lower than its right part.When protecgulum 50 further when off-position is rotated, left detent mechanism 90B begins operation, is pulled upwardly to its normal position with the left part with protecgulum 50.Therefore, after at first upwards drawing right part, upwards draw left part to make protecgulum 50 move to its normal position.Thereby, by at first upwards spurring the turning axle 3A in the patchhole 72 that is received in the rightmost side, upwards spur the turning axle 3A in the patchhole 72 that is received in the leftmost side at last, and the pulling (location) that sequentially makes progress is received in the turning axle 3A in the corresponding first turning axle patchhole 72.Therefore, upwards spur the turning axle 3A that is received in the first turning axle patchhole 72 in the different time, compare with the situation that upwards spurs turning axle 3A simultaneously, this allows user to close protecgulum 50 with less power.
(2. revising embodiment)
Can revise the illustrative embodiments in the above stated specification as described below.
(2-1)
In the lid supporting mechanism 60 of illustrative embodiments, the back shaft patchhole 63 of first back up pad, 70 sides is arranged to elongated shape, thereby during the shutoff operation of this first back up pad 70, more approach parallelly along with the surface of first back up pad 70 becomes, the back up pad 70 of winning is moved down with gravity direction (Z-direction).Yet the back shaft patchhole that is formed in the carriage 61 of front baffle 43 can be elongated, moves downward to realize first this of back up pad 70.In addition, in the exemplary embodiment, elongated hole is an oval shape, but it can be oval.In addition, the back shaft patchhole can be rectangle or other elongated shape arbitrarily, as long as first back up pad 70 can pivot and shaft insertion hole allow first back up pad 70 to move with respect to the direction of elongate of front baffle 43 along shaft insertion hole around back shaft 65.
(2-2)
In the detent mechanism 90 of illustrative embodiments, detent mechanism 90 is formed on the front baffle 43 and outstanding from it, and forms pilot hole 93 in first back up pad 70.Yet pilot hole can be formed in the front baffle 43, and register pin can be formed on first back up pad 70 and outstanding from it.Can use and comprise and being used for respect to the teat of front baffle 43 location first back up pad 70 and any structure of recess.In addition, illustrative embodiments comprises a pair of detent mechanism, and this is spaced apart from each other on the pivot axis direction to detent mechanism, but the detent mechanism more than three can be set.
The aforementioned description that illustrative embodiments of the present invention is provided is in order to illustrate and illustrative purposes.It is not intended to exhaustive or limit the invention to disclosed precise forms.Obviously, many modifications and modification it will be apparent to those skilled in the art that.Selecting and describing these illustrative embodiments is in order to explain principle of the present invention and practical application thereof best, thus the concrete purposes that makes those skilled in the art understand the present invention and to make various modifications be suitable for expecting at each embodiment.Scope of the present invention is intended to be limited by claims and equivalent thereof.
Claims (5)
1. image forming apparatus, this image forming apparatus comprises:
A plurality of image holding member, each image holding member keeps image and can rotate around turning axle;
Frame parts, this frame parts is defined for the space that holds described a plurality of image holding member at least in part;
Lid, this lid is arranged on the described frame parts, with with respect to external opening and close described space, the inboard of this lid is formed with the turning axle patchhole, and each turning axle patchhole all is used for receiving the end of turning axle of a described image holding member of the correspondence that is contained in described space;
Back shaft, this back shaft supports described lid, make described lid to pivot with respect to described frame parts, described back shaft insertion is arranged on described frame parts or the described back shaft that covers inserts in the hole, when described lid was closed described space, described back shaft patchhole was elongated having on the direction of vertical component; And
Detent mechanism, when described lid is closed described space, this detent mechanism makes described lid locate with respect to described frame parts, this detent mechanism comprises: at least two teats, described at least two teats from described frame parts and described lid is outstanding, and is spaced apart from each other along the axis direction of described back shaft; And the teat patchhole, described teat patchhole is arranged on in described frame parts and the described lid another, to receive corresponding teat when described lid is closed described space.
2. image forming apparatus, this image forming apparatus comprises:
A plurality of image holding member, each image holding member keeps image and can rotate around turning axle;
First frame parts;
Second frame parts, this second frame parts is relative with described first frame parts, between described first and second frame parts, to be defined for the space that holds described a plurality of image holding member at least in part, the inboard of this second frame parts is formed with the second turning axle patchhole, and each described second turning axle patchhole all is used for receiving the end of described turning axle of a described image holding member of the correspondence that is contained in described space;
Lid, this lid is arranged on described first frame parts, with with respect to external opening with close described space, the inboard of this lid is formed with the first turning axle patchhole, and each described first turning axle patchhole all is used for receiving the end of described turning axle of a described image holding member of the correspondence that is contained in described space;
Back shaft, this back shaft supports described lid, make described lid to pivot with respect to described first frame parts, described back shaft insertion is arranged on described first frame parts or the described back shaft that covers inserts in the hole, when described lid was closed described space, described back shaft patchhole was elongated having on the direction of vertical component; And
Detent mechanism, when described lid is closed described space, this detent mechanism makes described lid locate with respect to described first frame parts, this detent mechanism comprises: at least two teats, described at least two teats from described first frame parts and described lid is outstanding, and is spaced apart from each other along the axis direction of described back shaft; And the teat patchhole, described teat patchhole is arranged on in described first frame parts and the described lid another, to receive corresponding teat when described lid is closed described space.
3. image forming apparatus according to claim 1 and 2, wherein, described back shaft patchhole is avette or elliptical shape.
4. image forming apparatus according to claim 1 and 2, wherein, the described turning axle of each image holding member has tapered end, thereby the diameter of described turning axle is reduced towards end.
5. image forming apparatus according to claim 1 and 2, wherein, each in described at least two teats all has tapered end, thereby the diameter of described teat is reduced towards end.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-263586 | 2009-11-19 | ||
| JP2009263586A JP5402557B2 (en) | 2009-11-19 | 2009-11-19 | Image forming apparatus |
| JP2009-264634 | 2009-11-20 | ||
| JP2009265443A JP5640354B2 (en) | 2009-11-20 | 2009-11-20 | Image forming apparatus |
| JP2009264634A JP2011107557A (en) | 2009-11-20 | 2009-11-20 | Image forming apparatus |
| JP2009-265443 | 2009-11-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102073240A true CN102073240A (en) | 2011-05-25 |
| CN102073240B CN102073240B (en) | 2015-04-29 |
Family
ID=44031826
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010207372.3A Active CN102073240B (en) | 2009-11-19 | 2010-06-18 | Image-forming apparatus |
| CN201010232027.5A Expired - Fee Related CN102073260B (en) | 2009-11-19 | 2010-07-16 | Image-forming apparatus |
| CN201010231369.5A Expired - Fee Related CN102073259B (en) | 2009-11-19 | 2010-07-16 | Image forming device |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010232027.5A Expired - Fee Related CN102073260B (en) | 2009-11-19 | 2010-07-16 | Image-forming apparatus |
| CN201010231369.5A Expired - Fee Related CN102073259B (en) | 2009-11-19 | 2010-07-16 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN102073240B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073260A (en) * | 2009-11-19 | 2011-05-25 | 富士施乐株式会社 | Image-forming apparatus |
| CN114002928A (en) * | 2020-07-28 | 2022-02-01 | 柯尼卡美能达株式会社 | Toner supply device and image forming apparatus having the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060248733A1 (en) * | 2005-05-09 | 2006-11-09 | Kyocera Mita Corporation | Connection device, image forming apparatus and optional device equipped with the same |
| CN1892467A (en) * | 2005-07-04 | 2007-01-10 | 株式会社理光 | An image forming apparatus, rotating body positioning device and method for positioning the rotating body |
| JP2007199660A (en) * | 2005-12-26 | 2007-08-09 | Fuji Xerox Co Ltd | Image forming apparatus |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3320102B2 (en) * | 1992-06-30 | 2002-09-03 | キヤノン株式会社 | Process cartridge and image forming apparatus |
| JP4417942B2 (en) * | 2002-02-19 | 2010-02-17 | 株式会社リコー | Image forming apparatus |
| EP1482385A3 (en) * | 2003-05-20 | 2005-04-06 | Ricoh Company, Ltd. | Image forming apparatus |
| JP4208645B2 (en) * | 2003-06-03 | 2009-01-14 | キヤノン株式会社 | Developer supply container |
| JP2005242333A (en) * | 2004-01-30 | 2005-09-08 | Canon Inc | Image heating apparatus provided with flexible sleeve |
| JP4378299B2 (en) * | 2004-02-20 | 2009-12-02 | キヤノン株式会社 | Process cartridge and electrophotographic image forming apparatus |
| JP2007108496A (en) * | 2005-10-14 | 2007-04-26 | Kyocera Mita Corp | Fixing device |
| JP4724002B2 (en) * | 2006-01-06 | 2011-07-13 | 株式会社リコー | Image forming apparatus |
| CN102073240B (en) * | 2009-11-19 | 2015-04-29 | 富士施乐株式会社 | Image-forming apparatus |
-
2010
- 2010-06-18 CN CN201010207372.3A patent/CN102073240B/en active Active
- 2010-07-16 CN CN201010232027.5A patent/CN102073260B/en not_active Expired - Fee Related
- 2010-07-16 CN CN201010231369.5A patent/CN102073259B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060248733A1 (en) * | 2005-05-09 | 2006-11-09 | Kyocera Mita Corporation | Connection device, image forming apparatus and optional device equipped with the same |
| CN1892467A (en) * | 2005-07-04 | 2007-01-10 | 株式会社理光 | An image forming apparatus, rotating body positioning device and method for positioning the rotating body |
| JP2007199660A (en) * | 2005-12-26 | 2007-08-09 | Fuji Xerox Co Ltd | Image forming apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073260A (en) * | 2009-11-19 | 2011-05-25 | 富士施乐株式会社 | Image-forming apparatus |
| CN102073260B (en) * | 2009-11-19 | 2014-04-16 | 富士施乐株式会社 | Image-forming apparatus |
| CN114002928A (en) * | 2020-07-28 | 2022-02-01 | 柯尼卡美能达株式会社 | Toner supply device and image forming apparatus having the same |
| CN114002928B (en) * | 2020-07-28 | 2024-01-09 | 柯尼卡美能达株式会社 | Carbon powder replenishing device and image forming apparatus having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102073260B (en) | 2014-04-16 |
| CN102073259B (en) | 2014-04-02 |
| CN102073240B (en) | 2015-04-29 |
| CN102073259A (en) | 2011-05-25 |
| CN102073260A (en) | 2011-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100428084C (en) | Image forming apparatus | |
| US9423768B2 (en) | Image forming apparatus and tandem type photosensitive unit | |
| CN102411294B (en) | Electrophotographic image forming apparatus | |
| CN102854786B (en) | Image-forming device | |
| CN1776545B (en) | Image forming apparatus | |
| CN101520625A (en) | Image forming apparatus and development cartridge | |
| CN101430523A (en) | Toner replenishing apparatus, image forming apparatus, and color image forming apparatus | |
| JP2009092859A (en) | Support member for rotor, manufacturing method therefor, and image forming apparatus | |
| US8170446B2 (en) | Image-forming apparatus | |
| CN102736482B (en) | Image forming apparatus and toner container | |
| CN102073240A (en) | Image-forming apparatus | |
| CN102221797B (en) | Image-forming device | |
| CN101329536B (en) | Transfer belt device, method of assembling the same, and image forming apparatus | |
| US8989626B2 (en) | Image forming apparatus having a movement mechanism for reducing interference of an opening and closing member with a transfer body | |
| US8821055B2 (en) | Image forming apparatus | |
| CN102026504B (en) | Housing device and image-forming apparatus | |
| CN102193378B (en) | Image formation apparatus | |
| CN102736483A (en) | Image forming apparatus and toner container | |
| CN102023508B (en) | Image-forming apparatus | |
| US9141022B2 (en) | Image forming apparatus having an image forming unit arranged detachably to an apparatus body and having an image carrier, an exposure device, arranged in the apparatus body, for exposing the image carrier, and a cleaner for cleaning the exposure device | |
| US9150372B2 (en) | Image forming apparatus | |
| CN100440065C (en) | Image forming device and mounting member for mounting a toner container thereon | |
| US4952981A (en) | Toner image printing apparatus | |
| CN102141765B (en) | Toner-leveling mechanism, photo-conductor unit, and image-forming apparatus | |
| CN101526775A (en) | Image-forming device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: Fuji film business innovation Co.,Ltd. Address before: Tokyo, Japan Patentee before: Fuji Xerox Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |