CN101398654A - Toner supply device and image forming apparatus - Google Patents
Toner supply device and image forming apparatus Download PDFInfo
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- CN101398654A CN101398654A CNA2008101492968A CN200810149296A CN101398654A CN 101398654 A CN101398654 A CN 101398654A CN A2008101492968 A CNA2008101492968 A CN A2008101492968A CN 200810149296 A CN200810149296 A CN 200810149296A CN 101398654 A CN101398654 A CN 101398654A
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Abstract
This invention provides a toner supply device capable of reliably opening and closing a shutter member and preventing the toner dispersing, and an image forming device provided with the same. The toner supply device (100) includes a toner shell (101), a transport-path forming member (t1), a shutter member (105), and a seal member (106). The shutter member (105) is movable between a closed position closing the transport path (t1) and an open position opening the transport path (t1) via entering an inserting opening (109) mounted at the side of the shell (101). The seal member (106) fills a gap between an inner wall of the inserting opening (109) and the shutter member (105) in a toner transport direction in which the toner is transported through the transport path (t1). When the shutter member is inserted in the inserting opening, the shutter member is elastically deformable in a direction perpendicular to both the toner transport direction and a moving direction of the shutter member, and when the shutter member is not inserted in the opening, the shutter member is wider than the inserting opening in the perpendicular direction.
Description
Technical field
The present invention relates to be used for duplicating machine, facsimile recorder, the toner supply device of image processing systems such as printer, and the image processing system that is provided with this toner supply device.
Background technology
In the past, made that the relative image processing system loading and unloading of the toner supply device structure freely that is used for to developing apparatus supply toner was known for people.In this formation, during the loading and unloading toner supply device, keep open state if be located at the peristome of the discharge toner on the toner supply device, then toner disperses from peristome, and image processing system and periphery formation thereof are polluted.As one of its countermeasure, adopt following method: be provided for opening and closing the gate of above-mentioned peristome, when toner supply device is installed on the image processing system, open the sluices, open peristome when when image processing system unloads toner supply device, is used the closing gate peristome.
In patent documentation 1, in the toner supply device of record, be provided for opening and closing the gate of this toner escape hole, between off-position and open position, move, for use in the toner escape hole of closing or open the discharge toner that is formed on the device diapire.Clip the toner escape hole in device diapire outside, be provided with guiding parts, move on one side this gate left and right end portions is directed to device diapire outside, an edge.Gate is under the above-mentioned off-position state, and seal member is bonded on the gate, and it joins with device diapire outside, to cover the toner escape hole.Join by sealing parts and device diapire outside, can restraining device diapire outside and gate between the gap that produces, can guarantee the leakproofness of toner escape hole.
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Figure 19 is from the synoptic diagram of toner supply device 100 to developing apparatus 200 toner junctions.In the figure, on the sidewall of the housing 101 that forms toner stream t1, have the hole, be provided with the insertion mouth 109 of gate 125.Gate 125 inserts as shown in figure 20, opens and closes toner stream t1.Figure 20 represents the gate open state.
At this, wish gate 125 except airtight toner stream t2 reliably, also airtight insertion mouthfuls 109.
Figure 21 and Figure 22 represent the X XI-X XI sectional view of Figure 20.As shown in figure 21, between gate 125 and insertion mouth 109, there is gap 401,402, may toners takes place from this gap 401,402 and disperse.Dispersing from these gap 401,402 generation toners is in image processing system incidental especially phenomenon in service.For example, in service at image processing system, as shown in figure 19,, cause that because of stirring the toner of good fluidity flows into from toner stream t1 top, this toner disperses to the outside by gap 401,402.In addition, developing apparatus 200 sides below toner stream t1 are transported toner by helical feed part 204 towards the direction of arrow of toner stream t2, and toner constantly takeoffs shown in arrow t3.Therefore, the toner that takeoffs because of helical feed part 204 disperses to the outside by gap 401,402.This toner disperses because the toner small particle diameterization easily comes out to the outside from the gap, and because of the developing apparatus high speed, the toner that the helical feed part causes takeoffs more violent obvious.
Disperse from inserting mouth 109 in order to suppress toner, as shown in figure 22, must make the slipping plane 403,404 of gate 125 and insertion mouth 109 connect airtight, realize no gap.
But gate 125 and slipping plane 403,404 grades have dimensional tolerence, if because of this dimensional tolerence, gate 125 and not of uniform size the causing of inserting mouth 109 then can produce following problem.That is, if gate 125 is mouthfuls 109 bigger than inserting, gate 125 is stuck on the slipping plane 403,404, can not move, and perhaps promptly enables to move, need be very energetically but make that gate 125 moves, and sliding worsens.If gate 125 is littler than inserting mouth 109, produce the gap between gate 125 and the slipping plane 403,404, toner is from this clearance leakage.
In the toner supply device of patent documentation 1 record, seal member is bonded on the gate, and it joins with the device diapire outside that forms the toner escape hole, by the sealing parts, and the gap that produces between restraining device diapire outside and the gate.But,, do not consider about the gap that produces between the guiding parts of gate left and right directions and the gate left and right end portions.Therefore, there be the possibility of toner from this clearance leakage.
Summary of the invention
The present invention puts forward for solving the existing problem of above-mentioned prior art, the objective of the invention is to, provide and can realize the on-off action of gate part reliably and prevent the toner supply device that toner disperses, and the image processing system that is provided with this toner supply device.
To achieve these goals, the present invention proposes following scheme:
(1) a kind of toner supply device comprises:
Toner is taken in the toner incorporating section;
Transport passage and form parts, form and transport passage, be used for the toner of this toner incorporating section is transported to the outside;
The hole is located on this sidewall that transports passage formation parts;
Gate part enters this hole, can this transport the occlusion locations of passage and open between this release position of transporting passage and move in obturation;
Seal member, be blocked in this transport passage along this hole inwall of toner carriage direction and the gap between this gate part; It is characterized in that:
This gate part is entering under this poroid attitude, along the direction vertical with the moving direction of toner carriage direction and gate part, has elasticity, and do not enter under this poroid attitude at this gate part, this gate part is wideer than the width along above-mentioned vertical direction in this hole along the width of above-mentioned vertical direction.
(2) in above-mentioned (1) described toner supply device, it is characterized in that:
The side surface part along above-mentioned vertical direction of above-mentioned gate part is made as leaf spring.
(3) in above-mentioned (1) or (2) described toner supply device, it is characterized in that:
The side that is positioned at above-mentioned vertical direction at above-mentioned gate part is provided with protuberance.
(4) in above-mentioned (3) described toner supply device, it is characterized in that:
The protuberance that is positioned at above-mentioned vertical direction at above-mentioned gate part is provided with slot part.
(5) in above-mentioned (1) or (2) described toner supply device, it is characterized in that:
Above-mentioned seal member has elasticity, and the sealing parts are located at least one side of the face in the upstream side of the above-mentioned toner carriage direction of being positioned at of above-mentioned gate part and downstream.
(6) in above-mentioned (5) described toner supply device, it is characterized in that:
Be provided with the thin film component that covers above-mentioned seal member, be provided with otch at the central portion along above-mentioned vertical direction of this thin film component.
(7) in above-mentioned (1) described toner supply device, it is characterized in that:
Above-mentioned seal member has elasticity, and the sealing parts are located at the above-mentioned passage that transports along the toner carriage direction, and the upstream side surface of this gate part and at least one side of downstream side surface are joined with this hole inwall;
This gate part is not entering under this poroid attitude, along the direction vertical with the moving direction of toner carriage direction and gate part, the width of sealing parts is made as: stopping up this bore portion when gate part is positioned at the release position, the width along above-mentioned vertical direction than this hole is wide, when gate part is positioned at occlusion locations stopping up this bore portion, with the width same degree along above-mentioned vertical direction in this hole.
(8) in above-mentioned (7) described toner supply device, it is characterized in that:
The width along above-mentioned vertical direction along gate part moving direction central portion of above-mentioned seal member is narrower than the width along above-mentioned vertical direction of gate part.
(9) in above-mentioned (7) or (8) described toner supply device, it is characterized in that:
On the face of the opposition side of the face that is provided with above-mentioned seal member of above-mentioned gate part, be provided with second seal member, this second seal member does not cover whole of face of the above-mentioned opposition side of this gate part.
(10) a kind of image processing system comprises:
Sub-image mounting body is used for the mounting sub-image;
The development means are developed to the sub-image on this sub-image mounting body;
The toner supply means are to this development means supply toner; It is characterized in that:
Use any described toner supply device in (1)-(9), as described toner supply means.
The following describes effect of the present invention.
According to the present invention, have and to carry out the on-off action of gate part reliably and prevent the good result that toner disperses.
Description of drawings
The summary pie graph of the duplicating machine that Fig. 1 relates to for the invention process form.
Fig. 2 is the summary pie graph as the toner supply device of characteristic of the present invention.
Fig. 3 unloads the mode chart of toner supply device state from duplicating machine for expression.
Fig. 4 is the mode chart of expression gate shape.
Fig. 5 is for representing the mode chart with state before the gate insertion mouth.
Fig. 6 inserts mouthful mode chart of back state for expression with gate.
Fig. 7 is the summary pie graph of the gate of embedding lower seal.
Fig. 8 is for embedding the summary pie graph of the gate of going up seal.
Fig. 9 is the mode chart of expression seal shape one example.
Figure 10 is gate and the sectional view that inserts mouth.
Figure 11 does not establish the otch occasion for being illustrated in filter house, produces the mode chart of seal deflected.
Figure 12 is for seeing the figure of the gate of toner supply mouth open state from above.
Figure 13 is for seeing the figure of the gate of toner supply mouth closed condition from above.
Figure 14 is for seeing the figure of the gate of toner supply mouth open state from the side.
Figure 15 is for seeing the figure of the gate of toner supply mouth closed condition from the side.
Figure 16 is the summary pie graph of trough of belt gate.
Figure 17 does not have the gate of groove and the enlarged drawing of slipping plane.
Figure 18 is the enlarged drawing of trough of belt gate and slipping plane.
Figure 19 is that the gate of toner supply device inserts a mouthful key diagram.
Figure 20 is the gate key diagram of toner supply device.
Figure 21 inserts the mode chart of gapped state between mouth and the gate for the expression gate.
Figure 22 inserts the mode chart of state very close to each other between mouth and the gate for the expression gate.
Embodiment
Below, present invention will be described in detail with reference to the accompanying example, in following example, though to inscape, kind, combination, shape, configuration waits and has done various qualifications relatively,, these only exemplify, and the present invention is not limited thereto.
Below, as suitable image processing system of the present invention, a parallel example that sets the color laser copier (following brief note is " duplicating machine ") of the tandem type of plural photoreceptor is described.
The summary pie graph of the duplicating machine that Fig. 1 relates to for the invention process form.This duplicating machine is provided with printing portion 10, and its paper feed 11 of mounting is fixed on scanner 12 in the printing portion 10 etc.In addition, also be provided with automatic conveyer 400 of original copy of being fixed on this scanner 12 etc.
Below, illustrate yellow with cartridge processing 18.
Make that by charger photoreceptor 1Y uniform surface is charged as charging facility.On the photoreceptor 1Y surface that imposes charging process, by light writing unit 21, the laser that irradiation is deflected through modulation.So, the potential decay of irradiation portion (exposure portion).Because this decay forms the Y electrostatic latent image on photoreceptor 1Y surface.The Y that forms develops with the developing apparatus 200Y of electrostatic latent image by conduct development means, becomes Y toner picture.
Be formed on Y with the Y toner on the photoreceptor 1Y as primary transfer on intermediate transfer belt 4.The residual toner of transfer printing is removed by the drum cleaning device in the surface of photoreceptor 1Y after the primary transfer.
Use among the cartridge processing 18Y at Y, the photoreceptor 1Y that is cleaned by the drum cleaning device is disappeared by consumer appliance.Then, by the charging of charger homogeneous, be returned to original state.Above-mentioned such other cartridge processings of a series of processing 18M, 18C, 18K are also identical.
Below, the intermediate transfer unit is described.
Four primary transfer bias voltage roller 62Y, 62M, 62C, 62K set into respectively with intermediate transfer belt 4 inner peripheral surface side contacts, never illustrate power supply and apply the primary transfer bias voltage.From middle transfer belt 4 inner peripheral surface side direction photoreceptor 1Y, 1M, 1C, the 1K pushing forms the primary transfer clamping part respectively.By the influence of primary transfer bias voltage, between photoreceptor and primary transfer bias voltage roller, form the primary transfer electric field at each primary transfer clamping part.
Be formed on Y and influence primary transfer on intermediate transfer belt 4 by this primary transfer electric field and nip pressure with the above-mentioned Y toner picture on the photoreceptor 1Y.The superimposed photoreceptor 1M that is formed on of order on this Y toner picture, 1C, the M on the 1K, C, K toner picture is carried out primary transfer.By this superimposed primary transfer, on intermediate transfer belt 4, form as the superimposed toner picture of four looks of multiple toner picture (following brief note is " four look toner pictures ").
Four look toner pictures of superimposed transfer printing on intermediate transfer belt 4 are at the secondary transfer printing clamping part, and secondary transfer printing is not having on the illustrated transfer paper as the record body.Cleaned by band cleaning device 90 by the residual toner of transfer printing that remains in intermediate transfer belt 4 surfaces behind the secondary transfer printing clamping part, band cleaning device 90 is arranged on intermediate transfer belt 4 left sides, and clamping band between the driven roller 15.
The following describes secondary transfer printing device 22.
Set secondary transfer printing device 22 below in the figure of intermediate transfer unit 17, set up roller 23 by two and set up paper moving belt 24.Along with at least one side's the roller 23 that sets up is driven revolution, paper moving belt 24 is pressed among the figure counterclockwise and is gone in ring and move.Two are set up among the roller 23, set between the secondary transfer printing back up roller 16 of the roller 23a on right side in the drawings and intermediate transfer unit 17 clamping intermediate transfer belt 4 and paper moving belt 24.By this clamping, the intermediate transfer belt 4 of intermediate transfer unit 17 contacts with the paper moving belt 24 of secondary transfer printing device 22, forms the secondary transfer printing clamping part.And, do not apply secondary transfer printing bias voltage with the toner opposite polarity by there being illustrated power supply to set up roller 23a to this.By applying this secondary transfer printing bias voltage, form the secondary transfer printing electric field at the secondary transfer printing clamping part, make four look toner pictures on the intermediate transfer belt 4 of intermediate transfer unit 17 from the band side towards the above-mentioned roller 23a side electrostatic displacement of setting up.Synchronous by a pair of registration roller 49 with four look toner pictures on the intermediate transfer belt 4, transfer paper is sent into the secondary transfer printing clamping part, by this secondary transfer printing electric field and clamp pressure influence, secondary transfer printing four look toner pictures.
The charger of carrying out non-contact charge with transfer paper also can be set, replace above-mentionedly applying the secondary transfer printing mode of secondary transfer printing bias voltage to setting up roller 23a.
At the vertically plural superimposed paper feeding cassette 44 that sets of the paper feed 11 that is located at the duplicating machine lower body part, many superimposed transfer papers can be taken in by portion within it.The top transfer paper crimping of each paper feed roller 42 and corresponding paper feeding cassette 44.By making paper feed roller 42 revolutions, topmost transfer paper is sent to paper supply passage 46.
The paper supply passage 46 of the transfer paper that acceptance is sent from paper feeding cassette 44 comprises that plural number transports roller to 47 and be located near this channel end a pair of registration roller 49.Then, transfer paper is transported towards a pair of registration roller 49.The transfer paper that transports towards a pair of registration roller 49 is sandwiched between the roller of a pair of registration roller 49.On the other hand, in intermediate transfer unit 17, the four look toner pictures that are formed on the intermediate transfer belt 4 are belt mobile along with what be with, enter above-mentioned secondary transfer printing clamping part.A pair of registration roller 49 is sent the transfer paper that is clipped between the roller with the suitable time, looks like to connect airtight at secondary transfer printing clamping part and four look toners.Thus, at the secondary transfer printing clamping part, four look toner pictures and transfer paper on the intermediate transfer belt 4 connect airtight.Then, on white transfer paper, form coloured image through secondary transfer printing.Like this, the transfer paper that forms coloured image leaves the secondary transfer printing clamping part along with going in ring of paper moving belt 24 moved, and is sent to fixing device 25 from paper moving belt 24.
Fixing device 25 is provided with tape cell and backer roll 27, and described tape cell sets up photographic fixing band 26 by two rollers go in ring to move it, shown in backer roll 27 roller pushing in this tape cell.Photographic fixing band 26 and backer roll 27 mutual crimping form the photographic fixing clamping part, transport the transfer paper that comes from paper moving belt 24 and are sandwiched wherein.Among two rollers, be subjected to the roller of backer roll 27 pushing sides to have thermal source (not diagram) in inside, in the tape cell by its heating heat fixer band 26.Pressurized photographic fixing band 26 heating are clamped in the transfer paper of photographic fixing clamping part.By above-mentioned heating and pressurization, coloured image by photographic fixing on transfer paper.
In fixing device 25, be subjected in the portion of piling up 57 in the outside that transfer paper that photographic fixing handles is discharged to left plate among the figure that is located at printing portion framework, perhaps make it turn back to above-mentioned secondary transfer printing clamping part, so that on another side, form the toner picture.
When printed copy, for example, many sheet original copys are positioned on the document board 30 of the automatic conveyer 400 of original copy.But,, it is positioned on the contact glass 32 when this original copy is that one-sided bookbinding is closed for this shape occasion.Before above-mentioned mounting, the automatic conveyer 400 relative duplicating machine main bodys of original copy are opened, and expose the contact glass 32 of scanner 12.After this, by the one-sided bookbinding original copy of automatic conveyer 400 pushings of closed original copy.
Like this, behind the mounting original copy, do not have illustrated duplicating to begin switch, then read action by scanner 12 beginning original copys if push.But the sheet original copy is positioned in automatic conveyer 400 occasions of original copy, and before original copy read action, the automatic conveyer 400 of original copy was automatically moved to the sheet original copy on the contact glass 32.Read in the action at original copy, make the 1st moving body 33 and the 2nd moving body 34 all begin to move earlier, be located at the source emissioning light in the 1st moving body 33.Then, by being located at the reflective mirrors reflection in the 2nd moving body 34, behind imaging len 35, incide read sensor 36 from the reflected light of original copy face.Read sensor 36 is constructed image information according to incident light.
Read action with this original copy and walk abreast, each cartridge processing 18Y, 18M, each equipment in the 18C, 18K, intermediate transfer unit 17, secondary transfer printing device 22, fixing device 25 begin respectively to drive.Then, according to the image information of constructing by read sensor 36, drive controlling light writing unit 21, at each photoreceptor 1Y, 1M, 1C forms Y respectively on the 1K, M, C, K toner picture of all kinds.Above-mentioned each toner on intermediate transfer belt 4, forms four look toner pictures as superimposed transfer printing.
In addition, read action roughly simultaneously, beginning paper supply action in paper feed 11 with original copy.In the action of this paper supply, select the single-revolution of paper feed roller 42, send transfer paper from being accommodated in one of a plurality of paper feeding cassettes 44 in the paper storehouse 43.The transfer paper of being sent is in separate roller 45 many separation, enter counter-rotating paper supply passage 46 after, transport towards the secondary transfer printing clamping part by transporting roller 47.Also can carry out paper supply, replace above-mentioned paper supply from paper feeding cassette 44 from manual sheet feed stacker 51.This occasion is selected 50 revolutions of manual paper feed roller, send the transfer paper on the manual sheet feed stacker 51 after, separate roller 52 many separate transfer papers, paper supply arrives the manual paper supply passage 53 of printing portion 10.
This duplicating machine sets up into its top with intermediate transfer belt 4 and sets up the posture that face is roughly level forming the multicolor image occasion that is made of at least two look toners, makes whole photoreceptor 1Y, 1M, and 1C, 1K sets up face with top and contacts.In contrast, when forming the monochrome image occasion only constitute by the K toner, by there not being illustrated mechanism, the posture that makes intermediate transfer belt 4 become to tilt towards the diagram lower-left, make the photoreceptor 1Y that Y, M, C use, 1M, 1C and above-mentioned top set up emaciated face from.Then, four photoreceptor 1Y, 1M, 1C among the 1K, only makes the K look turn round towards the diagram counterclockwise with photoreceptor 1K, only makes k look toner picture.At this moment, about Y, M, C, not only photoreceptor 1, and developer also stops to drive, and prevents the unnecessary consumption of photoreceptor and developer.
This duplicating machine is provided with control part (not diagram) and operation display part (not diagram), and described control part is made of CPU etc., following equipment in the control duplicating machine, and described operation display part is made of LCD and various key or button etc.The operator passes through this operation display part is carried out the key input operation, sends instruction to control part, is the single face printing model in the pattern of transfer paper single face formation image only about conduct, can for example select a kind of from three kinds of patterns.Above-mentioned so-called three kinds of single face printing models are meant direct discharge pattern, counter-rotating discharge pattern, and pattern is discharged in the counter-rotating decurl.
Fig. 2 is for as summary pie graph characteristic of the present invention, carry out the toner supply device of toner supply to developing apparatus 200.Toner supply device 100 is installed in the image processing system, has the function of carrying out toner supply to developing apparatus 200, housing 101, and stirrer 102,103,104, gate 105 is the main composition product.Toner supply device 100 relative image processing systems can load and unload, and during installation, supply mouth 108 is communicated with the toner receiving port 203 of developing apparatus 200, carries out toner supply.
Embodiment 1
Fig. 4 is the stereographic map of expression as gate 105 shapes of the embodiment of the invention.The plate spring part 105a of gate 105 can make the gate front end press the distortion of arrow m2 direction by the along continuous straight runs deflection.In the present embodiment, gate 105 need have in the indeformable rigidity of above-below direction by there not being illustrated volute spring to energize from one-sided, by using leaf spring, can obtain horizontal direction elasticity and above-below direction rigidity.
In the present embodiment, as shown in Figure 5, gate 105 has protuberance 105b, has than gate to insert mouthfuls 109 big width, and as shown in Figure 6, plate spring part 105a is because of deflection, and the width stenosis can be inserted.At this moment, because of having protuberance 105b, gate 105 joins with wall 101a and only limits to gate protuberance rear end 105c, and slide area is little, and gate can slide with underload.
The size wide and insertion mouth 109 of gate 105 needs basis to gate 105 desired leakproofnesss, decisions such as sliding and deflection.The excessive occasion of gate width, the restoring force of plate spring part 105a is excessive, and the bending deformation of the seal member (with reference to Figure 11) that not only sliding variation, and aftermentioned is such is big, causes that toner disperses.The little occasion of gate width, the gate side can not join with wall fully, can not obtain desirable leakproofness.Consider above-mentioned factor, in the present embodiment, the breadth extreme of gate 105 is made as 15.4mm, and the width that inserts mouth 109 is made as 15mm.
The gate 105 in X-X cross section and insertion mouth 109 in Figure 10 presentation graphs 2.Gate 105 joins with wall with the 105c part as shown in Figure 6, plays a part the gate integral body that supporting comprises seal.Be provided with plate spring part 105a at gate 105, therefore, the hole occur, seal 107 plays a part to block described hole, and gives and the flexible effect of gate above-below direction.Seal 106 is given and gate above-below direction elasticity, and feasible connecting airtight property of top and bottom with gate insertion mouth 109 is good, presses by along continuous straight runs and collapses landfill and the gap of inserting mouth.Above the thin film component 106b covering seal 106, make it have sliding, and the protection surface.At this moment, otch 106c absorbs the deflection of the thin film component 106b of horizontal direction.Do not have the 106c occasion, as shown in figure 11, thin film component forms wavy deflection, produces gap 106g, thus, worries to take place toner and disperses.As shown in this embodiment, otch 106c absorbs this deflection, has to suppress the effect that toner disperses.Notch is at the central portion of seal 106, and width is made as 6mm.
As shown in figure 12, the leading section 106d of seal 106 inserts mouth 109 with gate and compares, and width is wide, when inserting gate 105, shrink landfill gap (front end of seal 106 is compared with gate 105, and width is wide, shrinks towards Width) by Width in inserting mouth 109.The narrow occasion of width of seal leading section 106d, and produce the gap between the insertion mouthful wall, cause that toner disperses.The wide occasion of width of seal leading section 106d because of being involved in slipping plane etc., causes that slipping plane worsens, and foreign matter can be sneaked into developer.At this, the width of seal leading section 106d is made as 15.4mm, and the width of the leading section of the seal 106 in the embodiment of the invention is made as 15.7mm, and sliding and leakproofness are all good.
The width of central portion 106e is narrower than gate width.The width of the gate rearward end 106f of seal 106 and gate same degree or narrow some.Make the width of seal 106 change like this to be balance for the sliding of the leakproofness of obtaining the insertion mouth 109 that causes because of seal 106 and gate 105.
By above-mentioned formation, the necessary load of shutter opening and closing can be suppressed to about 0.3-0.5kgf.
Below, the shape of the front end 106d of seal 106 is described.Figure 12 is the sectional view of the XII-XII of the open toner supply mouths of gate 105 108 states as shown in Figure 2.The effect of the gate 105 of this state is airtight insertion mouth 109.Unload outside the occasion from duplicating machine at toner device for supplying 100 such as maintenance devices, gate 105 is in open state usually, and because of toner supply device 100 operations, mobile high toner flows into toner supply mouth 108 usually.Therefore, for the gate 105 that is in open state, require to insert relatively the high leakproofness of mouth 109.So it is wideer than the width that inserts mouthfuls 109 to make width at the leading section 106d of seal 106, make the leading section 106d of seal 106 and the inwall that inserts mouthfuls 109 connect airtight, the landfill gap cuts off toner reliably.
Below, the shape of the central portion 106e of seal 106 is described.This part when having gate 105 inaccessible toner supply mouths 108 (toner stream t1), is cut off the effect from the toner of housing 101 sides as shown in figure 13.Gate 105 inaccessible toner supply mouths 108 only toner supply device 100 unload occasion from duplicating machine, and under this state, duplicating machine does not operate, because toner does not move the not powerful leakproofness that requires toner supply mouth 108.So, as shown in figure 13, make central portion 106e narrower than gate 105 width, the rubbing surface of minimizing and wall 101a is preferentially guaranteed sliding.In Figure 13, shown in 108a system in gap amplified between gate 105 and the wall 101a, in fact this gap can be suppressed at about 0.2mm.
The rearward end 106f of seal 106 is described at last.This part under gate 105 inaccessible toner supply mouths 108 (toner stream t1) state, has the effect of inserting mouth 109 of stopping up as shown in figure 13.But gate 105 is got this state, and only toner supply device 100 is when duplicating machine unloads, and frequency is low, and because toner supply device 100 stops really, the toner flowability is not high yet.So, make the width and the width same degree of inserting mouthfuls 109 width or gate 105 or following of rearward end 106f of seal 106 to be implemented in the leakproofness of the insertion mouth 109 of no problem degree in the actual use and the sliding of gate 105.
As mentioned above, under the open state and blocked state of the toner supply mouth 108 (toner stream t1) that passes through gate 105, seal 106 is considered leakproofness as required respectively, makes the wide variety of seal 106, realizes taking into account the gate 105 of leakproofness and sliding.
Figure 14 represents X IV-X IV cross section among Figure 12.Seal 107 runs through in the gate 105 as shown in figure 14, the outstanding 0.6mm thickness from gate 105 bottom surfaces.As shown in figure 14, under gate 105 open toner supply mouth 108 (toner stream t1) states, sealing part 107 has airtight effect of inserting mouth 109.Under this open state, seal 107 is positioned at and inserts mouth 109, and 0.6mm thickness part of giving prominence to towards the below of seal 107 becomes gate 105 and connects airtight at an above-below direction and insertion mouthful 109 inwalls.This be because, under gate 105 open states, duplicating machine operation, the toner of good fluidity to developing apparatus 200 side inflows, requires the cause of higher leakproofness by toner stream t1.
In contrast, shown in Figure 15 (the X V-X V cross section of Figure 13), leave mouthful 109 states that insert at seal 107, promptly, under gate 105 inaccessible toner supply mouths 108 (toner stream t1) state, gate 105 inserts mouth 109 relatively and is some loosening states that are inserted into.Under gate 105 inaccessible toner supply mouths 108 (toner stream t1) state, duplicating machine does not move, and toner does not take place by violent flowing.Therefore, under this state, make that gate 105 slidings are preferential.
Like this, use seal 107, make above-below direction seal variation in thickness, consider leakproofness is made as necessity, still sliding is made as necessity, can obtain the balance of leakproofness and sliding by the part.
Embodiment 2
The protuberance that Figure 16 is illustrated in the gate of embodiment 1 is provided with the gate part 115 of groove 115c.This groove 115c plays the feasible powder that is clipped between gate 115 and the slip wall, mainly is the effect that toner is released.Figure 17 does not have the gate 105 of groove and the enlarged drawing of slip wall.Gate 105 deflection in inserting mouth, therefore, gate protuberance 105b relative wall tilts slightly.Therefore, during closing gate, that is, when the left of Figure 17 advanced, powder 300 was blocked in and may causes in this oblique gap that the gate action is bad.To this, as shown in figure 18, use the gate be provided with groove, by making the powder slot part of releasing, can prevent to stop up.
As mentioned above; According to this example; Toner supply device 100 is provided with as taking in the housing 101 of the toner incorporating section of toner; As being formed for transport the toner stream t1 that passage form parts, by housing 101 formed that transport passage of the toner of housing 101 fortune to the outside; Insert port 109 as the hole that is located at housing 101 sides; Gate 105 as the gate part that can between the release position of the occlusion locations that embeds the inaccessible toner stream of insert port t1 and open toner stream t1, move
As being used to be blocked in the seal 106 of toner stream t1 along the seal member in gap between toner carriage direction, the inwall that inserts mouth 109 and the gate 105.In this toner supply device 100, gate 105 is embedding under insertion mouthful 109 states, edge and above-mentioned toner carriage direction and the vertical direction of gate 105 moving directions, has elasticity, and do not embed under insertion mouthful 109 states at gate 105, the width along above-mentioned vertical direction of gate 105 is wideer than the width along above-mentioned vertical direction that inserts mouth 109.Thus, on one side gate 105 can the above-mentioned vertical direction elastic deformation in an edge enter insertion mouth 109.Therefore, enter under the state that inserts mouth 109 at gate 105, along above-mentioned vertical direction, the width of gate 105 is made as identical with the width that inserts mouth 109.Therefore, can suppress following situation: enter at gate 105 under the state that inserts mouth 109, along above-mentioned vertical direction, the width of gate 105 is bigger than the width that inserts mouth 109, cause that gate 105 slidings worsen, or the width of gate 105 is littler than the width that inserts mouth 109, produces the gap between gate 105 and insertion mouthful 109 inwalls.
In addition, do not enter under insertion mouthful 109 states at gate 105, edge and above-mentioned toner carriage direction and the vertical direction of gate 105 moving directions, the width of seal 106, when being in the release position, stop up the leading section 106b of the part of inserting mouth 109 as gate 105, bigger than the width that inserts mouth 109 along above-mentioned vertical direction, when being in occlusion locations, stop up the rearward end 106f of the part of inserting mouth 109, with the roughly the same degree of the width along above-mentioned vertical direction of inserting mouth 109 as gate 105.Thus, can make the inwall and the seal 106 that insert mouth 109 connect airtight at leading section 106d, therefore, with 105 pairs of leakproofness overrides that insert mouth 109 of gate, by making at rearward end 106f, with the roughly the same degree of the width along above-mentioned vertical direction of inserting mouthfuls 109, can obtain the balance of the sliding that inserts mouthfuls 109 leakproofness and gate 105.
Can suppress between gate 105 and the inwall along the gap that above-mentioned toner carriage direction is produced by seal 106 again.Therefore, the on-off action of gate 105 can be carried out reliably, toner can be suppressed from inserting mouthful 109 disperse.
In this example, the side surface part along above-mentioned vertical direction of gate 105 is made as leaf spring, can obtain the elasticity of above-mentioned vertical direction (Width of gate 105), and along the rigidity of above-mentioned toner carriage direction (thickness direction of gate 105).
In this example, by side protuberance 105b is set in the above-mentioned vertical direction of being positioned at of gate 105 (Width of gate 105), can reduce the above-mentioned side of gate 105 and the contact area between insertion mouthful 109 inwalls.Thus,, can suppress the influence of the friction force that produces between above-mentioned side and the above-mentioned inwall, improve the sliding of gate 105 when making gate between above-mentioned occlusion locations and release position when mobile.
According to this example, seal 106 has elasticity, and seal 106 is located at least one side who is positioned at upstream side and downstream side along above-mentioned toner carriage direction of gate 105.Thus, compare, can improve operation with seal 106 being located at the apparatus main body side of inserting mouthful 109 grades.
According to this example, narrower than the width along above-mentioned vertical direction of gate 105 along the central portion of gate moving direction of seal 106 along above-mentioned vertical direction width, seal 106 does not join with the inwall that inserts mouth 109, and therefore, the sliding of gate 105 is good.
According to this example, be provided with the thin film component 106b that covers seal 106, the central portion along above-mentioned vertical direction at thin film component 106b is provided with otch, can suppress along the thin film component 106b that the deflection of above-mentioned vertical direction (Width of gate 105) causes waveform to take place because of gate 105.Thus, can suppress to cause the seal 106 that is covered by thin film component 106b and insert between mouthful 109 inwalls producing the gap because of thin film component 106b produces waveform.
According to this example, on the face of the opposition side of the face that is provided with seal 106 of gate 105, be provided with seal 107 as second elastomeric element, seal 107 does not cover whole of face of the above-mentioned opposition side of gate 105, promptly, make part that leakproofness is preferential and to make the part that sliding is preferential by on gate 105, forming, can obtain the balance of leakproofness and sliding.At above-mentioned leakproofness priority section, a seal 107 and insertion mouthful 109 inwalls join, and can suppress toner reliably and leak, and at above-mentioned sliding priority section, seal 107 does not join with insertion mouth 109 inwalls, makes that gate 105 slidings are preferential.
According to this example, on the side of the above-mentioned vertical direction of being positioned at of gate 105 (Width of gate 105), be provided with slot part 115c, can make to enter above-mentioned side and insert toner between mouthful 109 inwalls slot part 115c that releases.Thus, can suppress toner is blocked in above-mentioned side and inserts between mouthful 109 inwalls deterioration of inhibition gate 105 slidings.
According to this example, duplicating machine as image processing system is provided with the photoreceptor 1 of mounting sub-image as sub-image mounting body, make and the developing apparatus 200 of the conduct development means of image development on the photoreceptor 1 be used for toner supply means to developing apparatus 200 supply toners.In above-mentioned duplicating machine, use toner supply device of the present invention as above-mentioned toner supply means, when relative duplicating machine main body is loaded and unloaded toner supply device, opening and closing shutter reliably, suppress toner and disperse from inserting mouth 109, toner takes place and pollutes in inhibition duplicating machine main body and periphery thereof.
In this example, the seal 106 that will be used to stop up the top of gate 105 and insert gap between mouthfuls 109 be installed in gate 105 above, but the present invention is not limited thereto, also can seal member be installed in the inwall that inserts mouth 109 according to gate 105 structures.
Above with reference to description of drawings example of the present invention, but the present invention is not limited to above-mentioned example.Can do all changes in the technology of the present invention thought range, they all belong to protection scope of the present invention.
Claims (10)
1. toner supply device comprises:
Toner is taken in the toner incorporating section;
Transport passage and form parts, form and transport passage, be used for the toner of this toner incorporating section is transported to the outside;
The hole is located on this sidewall that transports passage formation parts;
Gate part enters this hole, can this transport the occlusion locations of passage and open between this release position of transporting passage and move in obturation;
Seal member, be blocked in this transport passage along this hole inwall of toner carriage direction and the gap between this gate part; It is characterized in that:
This gate part is entering under this poroid attitude, along the direction vertical with the moving direction of toner carriage direction and gate part, has elasticity, and do not enter under this poroid attitude at this gate part, this gate part is wideer than the width along above-mentioned vertical direction in this hole along the width of above-mentioned vertical direction.
2. toner supply device as claimed in claim 1 is characterized in that:
The side surface part along above-mentioned vertical direction of above-mentioned gate part is made as leaf spring.
3. toner supply device as claimed in claim 1 or 2 is characterized in that:
The side that is positioned at above-mentioned vertical direction at above-mentioned gate part is provided with protuberance.
4. toner supply device as claimed in claim 3 is characterized in that:
The protuberance that is positioned at above-mentioned vertical direction at above-mentioned gate part is provided with slot part.
5. toner supply device as claimed in claim 1 or 2 is characterized in that:
Above-mentioned seal member has elasticity, and the sealing parts are located at least one side of the face in the upstream side of the above-mentioned toner carriage direction of being positioned at of above-mentioned gate part and downstream.
6. toner supply device as claimed in claim 5 is characterized in that:
Be provided with the thin film component that covers above-mentioned seal member, be provided with otch at the central portion along above-mentioned vertical direction of this thin film component.
7. toner supply device as claimed in claim 1 is characterized in that:
Above-mentioned seal member has elasticity, and the sealing parts are located at the above-mentioned passage that transports along the toner carriage direction, and the upstream side surface of this gate part and at least one side of downstream side surface are joined with this hole inwall;
This gate part is not entering under this poroid attitude, along the direction vertical with the moving direction of toner carriage direction and gate part, the width of sealing parts is made as: stopping up this bore portion when gate part is positioned at the release position, the width along above-mentioned vertical direction than this hole is wide, when gate part is positioned at occlusion locations stopping up this bore portion, with the width same degree along above-mentioned vertical direction in this hole.
8. toner supply device as claimed in claim 7 is characterized in that:
The width along above-mentioned vertical direction along gate part moving direction central portion of above-mentioned seal member is narrower than the width along above-mentioned vertical direction of gate part.
9. as claim 7 or 8 described toner supply devices, it is characterized in that:
On the face of the opposition side of the face that is provided with above-mentioned seal member of above-mentioned gate part, be provided with second seal member, this second seal member does not cover whole of face of the above-mentioned opposition side of this gate part.
10. image processing system comprises:
Sub-image mounting body is used for the mounting sub-image;
The development means are developed to the sub-image on this sub-image mounting body;
The toner supply means are to this development means supply toner; It is characterized in that:
Use any described toner supply device among the claim 1-9, as described toner supply means.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007254882A JP5117153B2 (en) | 2007-09-28 | 2007-09-28 | Toner supply device and image forming apparatus |
| JP254875/07 | 2007-09-28 | ||
| JP254882/07 | 2007-09-28 | ||
| JP2007254875A JP5472774B2 (en) | 2007-09-28 | 2007-09-28 | Toner supply device and image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101398654A true CN101398654A (en) | 2009-04-01 |
| CN101398654B CN101398654B (en) | 2011-04-13 |
Family
ID=40517268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101492968A Expired - Fee Related CN101398654B (en) | 2007-09-28 | 2008-09-27 | Toner supply device and image forming apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5472774B2 (en) |
| CN (1) | CN101398654B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102681374A (en) * | 2011-03-17 | 2012-09-19 | 株式会社理光 | Electrostatic image developing toner, toner container and process cartridge |
| CN102955397A (en) * | 2011-08-22 | 2013-03-06 | 株式会社理光 | Toner supply device and image forming apparatus |
| CN103309206A (en) * | 2012-03-15 | 2013-09-18 | 株式会社理光 | Powder container, powder supply device, and image forming apparatus |
| CN107239022A (en) * | 2013-02-25 | 2017-10-10 | 株式会社理光 | Container seal |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5531644B2 (en) * | 2010-01-27 | 2014-06-25 | 株式会社リコー | Image forming apparatus |
| JP6016088B2 (en) * | 2012-08-10 | 2016-10-26 | 株式会社リコー | Shutter mechanism and image forming apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3210175B2 (en) * | 1993-06-10 | 2001-09-17 | キヤノン株式会社 | Developer supply container and method of assembling the container |
| JP3305159B2 (en) * | 1994-06-02 | 2002-07-22 | 株式会社リコー | Developing device |
| JP3514400B2 (en) * | 1996-01-23 | 2004-03-31 | キヤノン株式会社 | Developer supply container |
| JPH11143202A (en) * | 1997-11-14 | 1999-05-28 | Canon Inc | Toner supply container |
| JP3427299B2 (en) * | 2000-11-30 | 2003-07-14 | 京セラミタ株式会社 | Toner supply device and toner cartridge thereof |
| JP2003107871A (en) * | 2002-07-17 | 2003-04-09 | Canon Inc | Toner replenishing container |
| CN2570828Y (en) * | 2002-09-26 | 2003-09-03 | 珠海天威飞马打印耗材有限公司 | Modified open/close gate style lid for carbon powder bottle |
| JP4525171B2 (en) * | 2004-05-18 | 2010-08-18 | 富士ゼロックス株式会社 | Shutter structure, developing device, and image forming apparatus |
-
2007
- 2007-09-28 JP JP2007254875A patent/JP5472774B2/en not_active Expired - Fee Related
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2008
- 2008-09-27 CN CN2008101492968A patent/CN101398654B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102681374A (en) * | 2011-03-17 | 2012-09-19 | 株式会社理光 | Electrostatic image developing toner, toner container and process cartridge |
| CN102955397B (en) * | 2011-08-22 | 2014-12-31 | 株式会社理光 | Toner supply device and image forming apparatus |
| CN102955397A (en) * | 2011-08-22 | 2013-03-06 | 株式会社理光 | Toner supply device and image forming apparatus |
| US8886094B2 (en) | 2011-08-22 | 2014-11-11 | Ricoh Company, Ltd. | Toner supply device and image forming apparatus |
| CN103309206B (en) * | 2012-03-15 | 2016-05-25 | 株式会社理光 | Powder collecting container, powder supplying device, and image processing system |
| US9146497B2 (en) | 2012-03-15 | 2015-09-29 | Ricoh Company, Ltd. | Powder container, powder supply device, and image forming apparatus including same |
| CN103309206A (en) * | 2012-03-15 | 2013-09-18 | 株式会社理光 | Powder container, powder supply device, and image forming apparatus |
| US9459556B2 (en) | 2012-03-15 | 2016-10-04 | Ricoh Company, Ltd. | Powder container, powder supply device, and image forming apparatus including same |
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| US10606187B2 (en) | 2012-03-15 | 2020-03-31 | Ricoh Company, Ltd. | Powder container, powder supply device, and image forming apparatus including same |
| US10871729B2 (en) | 2012-03-15 | 2020-12-22 | Ricoh Company, Ltd. | Powder container, powder supply device, and image forming apparatus including same |
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| CN107239022B (en) * | 2013-02-25 | 2020-06-09 | 株式会社理光 | Container seal |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5472774B2 (en) | 2014-04-16 |
| CN101398654B (en) | 2011-04-13 |
| JP2009086219A (en) | 2009-04-23 |
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