CN104163349A - Sheet material transportation device and image formation device - Google Patents

Abstract

The invention relates to the sheet material transportation device and an image formation device, comprising an adsorption separation unit (110) and a swinging handle segment. The adsorption separation unit (110) is provided with a adsorption belt (2) and a belt driving hand belt; the adsorption belt (2) is configured oppositely to the sheet material bundle (1) and used for absorbing the sheet material (1a) on the top; the belt-driving hand segment enables the adsorption belt to move on the surface and transports the sheet material adsorbed on the top; the adsorption separation unit can support the supporting shaft (14) in a manner of rotating freely; the swinging handle segment enables the adsorption separation unit to swing and enables the adsorption separation belt to pick up the second transportation position; the adsorption belt is enabled to move on the surface under the driving of the driving hand segment; and the adsorption belt is received in the receiving part positioned on the downstream.

Description

Sheet material conveyer and image processing system

Technical field

The present invention relates to the sheet material conveyer that the separated uppermost sheet of sheet bundle from loading is transported, and adopt image processing systems this sheet material conveyer, duplicator, facsimile apparatus, chopping machine, offset press etc.

Background technology

The method that the sheet material of the original copy loading as separation or record paper etc. transports, following electrostatic adherence separate mode is proposed: by electric charge, give adsorption band, make it contact electrostatic adherence with uppermost sheet, make uppermost sheet and its lower sheet separation,, at adsorption band, form electric field, it is contacted, adsorptive separation (for example patent documentation 1) with sheet material.

The sheet material conveyer of the electrostatic adherence separate mode that patent documentation 1 is recorded is provided with by adsorption band and the adsorption separation unit forming with driving means, the configuration of subtend above of multiple sheet materials of described adsorption band and loading (following brief note is " sheet bundle "), the uppermost sheet of electrostatic attracting sheet bundle, described band driving means makes adsorption band surface mobile.Adsorption separation unit is supported in holding components with freely rotating.Again, be provided with swing means, take holding components as fulcrum, adsorption separation unit is swung, adsorption band is moved between absorption position and transporting position, described absorption position system makes the uppermost sheet of sheet bundle be adsorbed on the position of above-mentioned adsorption band, and described transporting position system transports position uppermost sheet, that sheet bundle more leaves than absorption position relatively that is adsorbed on adsorption band.

When the image forming part from the separated uppermost sheet of sheet bundle towards image processing system etc. transports with above-mentioned sheet material conveyer, sometimes because there is the emergent stopping sheet materials such as sheet material obstruction in transporting path, transport action.At this moment, in sheet material conveyer, uppermost sheet, because the residual charge of adsorption band sticks on adsorption band, stopping under state like this, does not drop on sheet bundle sometimes.Under this state, if want, remove and remain in the processing of transporting the sheet material in path or sheet material conveyer, sometimes can not be depending on recognizing the sheet material that sticks to adsorption band state, residual this sheet material.In order to remove the processing of the sheet material in sheet material conveyer, when pulling out the sheet bundle of loading, the sheet material that sometimes sticks to adsorption band state tangles parts around, has the problem of difficult treatment.

In more detail, the sheet material conveyer of the electrostatic adherence separate mode that patent documentation 1 is recorded is provided with by dielectric adsorption band, electric charge and gives the adsorption separation unit that means and bracket form, described adsorption band is wound on two rollers, described electric charge is given means and is given alternation electric charge to this adsorption band, and described bracket keeps said mechanism.Bracket is supported above-mentioned two rollers with freely rotating, and along sheet material carriage direction, axis of revolution is located at the upstream side of described two rollers, and bracket is fixed on described axis of revolution.

Among two rollers, the upstream side roller that is configured in sheet material carriage direction upstream side is supported in bracket, can move towards the sheet face vertical direction relative to sheet bundle, and the downstream roller that is configured in sheet material carriage direction downstream is supported in bracket, invariant position.

In the last stage of paper supply, the adsorption band that remains on bracket by two rollers is positioned at the position of leaving from sheet bundle.When the uppermost sheet of separator sheet bundle is transported, first, make adsorption band revolution, to adsorption band, give alternation electric charge.If give alternation electric charge to adsorption band, stop the revolution of adsorption band, drive swinging gear to make adsorption separation unit towards sheet bundle side oscillation, adsorption band is contacted with the uppermost sheet of sheet bundle, the uppermost sheet of sheet bundle is adsorbed on adsorption band.

In the surperficial part of the adsorption band with contacting above sheet bundle, if the uppermost sheet of sheet bundle is adsorbed on adsorption band, drive swinging gear that adsorption separation unit is swung towards transporting position from absorption position.So downstream roller moves towards leaving sheet bundle direction together with bracket, upstream side roller, because deadweight clips adsorption band, does not move away above sheet bundle, for bracket, towards sheet bundle direction, relatively moves.

Thus, adsorption band swings centered by the axis of revolution of upstream side roller, and the above-mentioned surface element of adsorption band divides above relative sheet bundle to tilt with the corresponding angle of the curvature with upstream side roller.Then, clip adsorption band, take that to be subject to upstream side roller pushing part be fulcrum, be adsorbed on that the part of uppermost sheet of above-mentioned surface part is crooked to be promoted on one side on one side, with second sheet separation of sheet bundle.After this, drive adsorption band revolution, transport the uppermost sheet that is adsorbed on adsorption band.

But, because of sheet material obstruction etc., transport badly, when sheet material conveyer stops sheet material and transports action, sometimes because of residual charge, uppermost sheet is adsorbed on adsorption band, in such cases, becomes the state not dropping on sheet bundle.Therefore, be adsorbed under the state of adsorption band in uppermost sheet, operator carries out plugging handling, therefore, produces the miscellaneous problem of plugging handling operation.

[patent documentation 1] TOHKEMY 2012-188230 communique

Summary of the invention

The present invention puts forward in order to solve above-mentioned problem, its object is, provides in the sheet material conveyer of electrostatic adherence separate mode, when the occasions such as sheet material obstruction occurring, can removing well the sheet material conveyer of the sheet material that sticks to adsorption band state and the image processing system that is provided with this sheet material conveyer.

Another object of the present invention is to, the image processing system that can suppress the miscellaneous sheet material conveyer of plugging handling operation and be provided with this sheet material conveyer is provided.

To achieve these goals, the present invention proposes a kind of sheet material conveyer, it is characterized in that:

Described sheet material conveyer comprises:

Adsorption separation unit, be provided with adsorption band and band driving means, the configuration of subtend above of the sheet bundle of described adsorption band and mounting, the uppermost sheet of this sheet bundle of electrostatic adherence, band driving means makes this adsorption band surface mobile, transport the uppermost sheet of absorption, this adsorption separation unit is supported in holding components with freely rotating; And

Swing means, take this holding components swings as fulcrum makes this adsorption separation unit, this adsorption band is moved between absorption position and the first transporting position, described absorption position is adsorbed on this adsorption band by the uppermost sheet of this sheet bundle, and described the first transporting position transports the uppermost sheet that is adsorbed on this adsorption band;

Above-mentioned swing means swing above-mentioned adsorption separation unit, make this adsorption band move to second transporting position different from above-mentioned the first transporting position, described the second transporting position refers to towards the sheet material incorporating section that is provided in sheet material carriage direction downstream, transports the position of the uppermost sheet that is adsorbed on above-mentioned adsorption band.

To achieve these goals, the present invention proposes another kind of sheet material conveyer, it is characterized in that:

Described sheet material conveyer comprises:

The rotating ring-type adsorption band of energy, the configuration of subtend above with the sheet bundle loading, is adsorbed on above-mentioned adsorption band by the uppermost sheet of above-mentioned sheet bundle and transports;

Charging facility, makes the surface charging of above-mentioned adsorption band; And

Sheet material is peeled off means, contacts with the above-mentioned uppermost sheet that is adsorbed on above-mentioned adsorption band, can peel off this uppermost sheet from this adsorption band.

The following describes effect of the present invention:

According to the present invention, in the sheet material conveyer of electrostatic adherence separate mode, when the occasions such as sheet material obstruction occur, can remove well the sheet material that sticks to adsorption band state.

According to the present invention, have and can suppress the miscellaneous excellent effect of plugging handling operation.

Accompanying drawing explanation

Fig. 1 means the mode chart of the duplicator that this example relates to.

Fig. 2 means the mode chart of the sheet feed section of duplicator.

Fig. 3 A and Fig. 3 B represent that the main portion of the adsorption separation unit of sheet feed section forms, and wherein, Fig. 3 A is section drawing, and Fig. 3 B is planar view.

Fig. 4 A and Fig. 4 B are the instruction diagrams of the charging facility of adsorption band, and wherein, Fig. 4 A represents roller shape electrod assembly, and Fig. 4 B represents to scrape tabular electrod assembly.

Fig. 5 A to Fig. 5 C is the instruction diagram of the swing position of adsorption separation unit, and wherein, Fig. 5 A represents absorption position, and Fig. 5 B represents the first transporting position, and Fig. 5 C represents the second transporting position.

Fig. 6 A to Fig. 6 D is the action specification figure of the adsorption separation unit while there is sheet material obstruction.

Fig. 7 is the block scheme of main portion of the control part of adsorption separation unit.

Fig. 8 A to Fig. 8 C is the action specification figure that sees the projecting part of the adsorption separation unit occasion that comprises projecting part from top.

Fig. 9 means the mode chart of the duplicator that this example relates to.

Figure 10 means the block diagram that the summary of sheet feed section forms.

Figure 11 means the mode chart of the basic comprising of the sheet material conveyer that is located at sheet feed section.

Figure 12 A and Figure 12 B represent that the main portion of the adsorption separation unit of sheet material conveyer forms.

Figure 13 is the summary pie graph of the driver train of sheet material conveyer.

Figure 14 means the block diagram that the main portion of adsorption separation unit forms.

Figure 15 means the block diagram of the variation of adsorption separation unit.

Figure 16 A to Figure 16 E explanation sheet material conveyer is separated/transport sheet material.

Figure 17 A and Figure 17 B are that action specification figure is transported in the absorption of adsorption separation unit.

Figure 18 is the figure of the adsorption separation unit that comprises projecting part of seeing that from top configuration example 1 relates to.

Figure 19 is the figure of the adsorption separation unit in two adsorption separation unit occasions of sheet width direction alignment arrangements of seeing that from top configuration example 2 relates to.

The specific embodiment

Below, the example that present invention will be described in detail with reference to the accompanying.

In following example, although to inscape, kind, combination, position, shape, quantity, configuration waits and has done various restrictions relatively,, these only exemplify, and the present invention is not limited thereto.

Below, illustrate the present invention is applicable to as an example of the duplicator of the image processing system of electrofax mode.

Fig. 1 means the mode chart of the duplicator that this example relates to.The duplicator 200 of Fig. 1 comprises automatic manuscript-transporting device 39 and manuscript reading section 38, described automatic manuscript-transporting device 39 is from the original copy bundle that is positioned in original tray 39a separated original copy one by one, automatic paper feeding is to the contact glass in manuscript reading section 38, and described manuscript reading section 38 reads the original copy being transported on contact glass.Also comprise image forming part 30 and sheet feed section 31, described image forming part 30 forms means as image, according to the original image being read by manuscript reading section 38, forms image, and described sheet feed section 31 is the sheet material as recording medium to image forming part 30 Gong Give.Sheet feed section 31 is taken in multiple as the sheet bundle 1 of the sheet stack of log sheet, from this sheet bundle 1, by being positioned at its uppermost uppermost sheet 1a Gong Give, to image forming part 30, transports path 32.In this example, image forming part 30 and sheet feed section 31 are divisible.

The image processing system that image forming part 30 is so-called tandem type, image-generating unit 60Y forms yellow (Y) toner image, image-generating unit 60C forms cyan (C) toner image, image-generating unit 60M forms magenta (M) toner image, image-generating unit 60K forms black (K) toner image, and image-generating unit 60Y, 60C, the relative intermediate transfer belt 67 of 60M, 60K are configured side by side.Each image-generating unit 60Y, 60C, 60M, 60K is provided with and corresponding photosensitive material 61Y, 61C, 61M, 61K of all kinds.Each image-generating unit 60Y, 60C, 60M, 60K, except the look difference of taken in toner, roughly form identical.For example, if use yellow image-generating unit 60Y to describe,, around photosensitive material 61Y, be provided with charging unit 62Y, developing apparatus 64Y, photosensitive material clean-up device 65Y etc.Again, image forming part 30 is provided with light writing unit 63, for irradiating laser to photosensitive material 61Y, 61C, 61M, 61K.

Intermediate transfer belt 67 is set up by a plurality of anvil roll 69a, 69b, 69c, mobile towards diagram counterclockwise surface.In intermediate transfer belt 67 and subtend position each photosensitive material 61Y, 61C, 61M, 61K, be provided with primary transfer roller 66Y, 66C, 66M, 66K.Along the surperficial moving direction of intermediate transfer belt 67, in the downstream of primary transfer roller 66Y, 66C, 66M, 66K, in the subtend position of anvil roll 69a, be provided with band clean-up device 68.

The path 32 of transporting of image forming part 30 is transported to by the sheet material from sheet feed section 31 Gong Give the secondary transfer printing portion being formed by intermediate transfer belt 67 and secondary transfer roller 34 by transporting roller (there is no diagram), registration roller 33 etc.Along transporting path 32, the downstream in secondary transfer printing portion, is provided with the fixing device 35 that the toner image on sheet material is carried out to photographic fixing.

In the image forming part 30 of above-mentioned formation, in each image-generating unit 60Y, 60C, 60M, 60K, form toner image of all kinds.For example, if use yellow image-generating unit 60Y to describe, photosensitive material 61Y revolution simultaneously, first, makes photosensitive material 61Y uniform surface charged at charging unit 62Y.Then,, at light writing unit 63, the image information data obtaining according to the original image data that read by manuscript reading section 38 by look decomposition, irradiates laser, forms the electrostatic latent image of yellow image on photosensitive material 61Y.After this, by developing apparatus 64Y, Yellow toner is adhered to, make the electrostatic latent image can video, on photosensitive material 61Y, form Yellow toner picture.Even also form cyan toner picture, magenta toner picture, black toner picture with same processes in other image-generating unit 60C, 60M, 60K.

By primary transfer roller 66Y, 66C, 66M, 66K, the toner image of all kinds on each photosensitive material 61Y, 61C, 61M, 61K is sequentially transferred on intermediate transfer belt 67, forms superimposed color toner picture.On the other hand, remaining toner is removed at each photosensitive material clean-up device 65Y, 65C, 65M, 65K in the surface of each photosensitive material 61Y after transfer printing toner image, 61C, 61M, 61K, cleans, the standby image that again forms.

On the other hand, sheet feed section 31 is separator sheet one by one, is transported to and transports in path 32, touches and connects and stop with registration roller 33.Then, with the time consistency of the formation toner image of image forming part 30, by and registration roller 33 touch the sheet material that connects and stop and sending to the secondary transfer printing portion between intermediate transfer belt 67 and secondary transfer roller 34.In secondary transfer printing portion, the superimposed color toner on intermediate transfer belt 67 looks like to be transferred on the sheet material of Gong Give.The sheet material that transfer printing has a toner image by 35 pairs of toner image photographic fixing of fixing device after, by exit roller, to 36, be discharged to ADF dish 37.On the other hand, remaining toner is removed at band clean-up device 68 in the surface of the intermediate transfer belt 67 after transfer printing toner image, cleans, the standby image that again forms.

Fig. 2 means the mode chart of sheet feed section 31.Sheet feed section 31 comprises as the sheet feed cassette 11 of sheet material incorporating section and sheet material conveyer 100 formations, described sheet feed cassette 11 mountings are taken in multiple sheet materials, the sheet bundle that multiple sheet materials consist of 1 separation of described sheet material conveyer 100 from sheet feed cassette 11 is positioned at uppermost uppermost sheet 1a, transports.

As shown in Figure 2, at sheet feed cassette 11, be provided with the base plate 7 of multiple sheet bundles 1 that load lamination.Between base plate 7 and the bottom of sheet feed cassette 11, the holding components 8 of support base 7 is installed with freely rotating.At sheet feed section 31, be provided with sheet material detection means (not diagram), the uppermost sheet 1a that detects sheet bundle 1 comes the position setting.

Sheet material conveyer 100 comprises adsorption separation unit 110, and the conduct that this adsorption separation unit 110 is swung swings the swinging gear 120 of means, and the driver train (not diagram) etc. that makes the conduct band driving means that adsorption band 2 ring-types move.

Explanation is about the formation of adsorption separation unit 110.Fig. 3 A and Fig. 3 B represent that the main portion of adsorption separation unit 110 forms, and wherein, Fig. 3 A is section drawing, and Fig. 3 B is planar view.Adsorption separation unit 110 comprises that being erected at downstream sets up the adsorption band 2 that roller 5 and upstream side set up roller 6.Adsorption band 2 becomes the double-decker that comprises top layer and conductive layer, and described top layer is by having 10 ⁸the polyethylene terephthalate of 50 μ m left and right thicknesses of the above resistance of Ω cm forms, and described conductive layer forms by aluminium-vapour deposition, has 10 ⁶the following resistance of Ω cm.By adsorption band 2 is made as to double-decker as described above, can use by the counter electrode using conductive layer as ground connection, electrod assembly 3 as charged means is given adsorption band 2 by electric charge, so long as the position joining with the top layer of adsorption band 2, where all right described electrod assembly 3 is located at.In adsorption separation unit shown in Fig. 2 110, as charged means, use roller shape electrod assembly 3 shown in Fig. 4 A, still, also can use and shown in Fig. 4 B, scrape tabular electrod assembly 40.

Roller 5 surfaces are set up in downstream, and to be provided with resistance value be 10 ⁶the conducting rubber layer of Ω cm, upstream side sets up roller 6 for metallic roll.Roller 5 is set up in downstream and upstream side sets up all ground connection of roller 6.Downstream is set up roller 5 and is made as the path being suitable for from adsorption band 2 curvature separator sheet.That is, reduce downstream and set up roller 5 diameters, increase curvature, be adsorbed on the uppermost sheet 1a transporting on adsorption band 2 and leave downstream and set up roller 5, be delivered to guiding parts 10 or the guiding parts 52 in carriage direction described later downstream.

As shown in Figure 3, the axle 5a that roller 5 is set up in downstream is supported in housing 20 with freely rotating.The axle 6a revolution that upstream side sets up roller 6 is supported in bearing 22, and described bearing 22 remains relative housing 20 and can slide towards sheet material carriage direction.By spring 21, bearing 22 is energized towards sheet material carriage direction upstream side.Thus, upstream side is set up to roller 6 and towards sheet material carriage direction upstream side, energize, to adsorption band 2, give tension force.

The swinging gear 120 of adsorption separation unit 110 is described.

As shown in Figures 2 and 3, adsorption separation unit 110 is provided with support 12 at bandwidth direction two ends, for swinging, keeps freely adsorption band 2.Along sheet material carriage direction, supporting axis 14 is located at the upstream side that upstream side sets up roller 6, and support 12 is supported in supporting axis 14 with freely rotating, by the driven wheel corresponding with support 12 15, can drive revolution.Driven wheel 15 is fixed on axle drive shaft 16, by drive source 17, can one drive.By drive source 17 is driven, can make adsorption separation unit 110 take supporting axis 14 as fulcrum, shown in absorption position shown in Fig. 5 A, Fig. 5 B, shown in the first transporting position and Fig. 5 C, between the second transporting position, swinging.At this, absorption position shown in Fig. 5 A is to make the uppermost sheet 1a of sheet bundle 1 be adsorbed on the position of adsorption band 2.The first transporting position shown in Fig. 5 B is the position for the uppermost sheet 1a that is adsorbed on adsorption band 2 is transported to image forming part 30, in its carriage direction downstream, be provided with guiding parts 10 and transport roller 9, described in transport roller 9 for transporting towards the path 32 of transporting of leading to image forming part 30.The second transporting position shown in Fig. 5 C is the position for the uppermost sheet 1a that is adsorbed on adsorption band 2 is transported to sheet material incorporating section 53, in its carriage direction downstream, be provided with guiding parts 52 and transport roller 51, described in transport roller 51 for transporting towards sheet material incorporating section 53.Sheet material incorporating section 53 is as long as the scope that can swing centered by supporting axis 14 in adsorption band 2 can be located at sheet feed section 31 sides, image forming part 30 side either party.

The action of adsorption separation unit 110 is described.

Adsorption separation unit 110 is transported in action at common sheet material, carries out the reciprocating action between the first transporting position shown in absorption position shown in Fig. 5 A and Fig. 5 B.For example, in the last stage of paper supply, by downstream, set up roller 5 and upstream side and set up the adsorption band 2 that roller 6 remains on support 12 and be positioned at the position of leaving from sheet bundle.When the uppermost sheet 1a of separator sheet bundle 1 transports, first, make adsorption band 2 revolutions, from electrod assembly 3, to adsorption band 2, give alternation electric charge.If give alternation electric charge to adsorption band 2, stop the revolution of adsorption band 2, drive swinging gear 120 that adsorption separation unit 110 is swung towards absorption position.Then, adsorption band 2 is contacted with the uppermost sheet 1a of sheet bundle 1, the uppermost sheet 1a of sheet bundle 1 is adsorbed on adsorption band 2.If the uppermost sheet 1a of sheet bundle 1 is adsorbed on adsorption band 2, drive swinging gear 120 that adsorption separation unit 110 is swung towards the first transporting position.So, be adsorbed on uppermost sheet 1a on adsorption band 2 and promote because of adsorption band 2, with second sheet separation.Then, drive adsorption band 2 revolutions, by being adsorbed on uppermost sheet 1a on adsorption band 2 and being delivered to the guiding parts 10 in carriage direction downstream, by transporting roller 9, towards the path 32 of transporting of image forming part 30, transport.

But for example, adsorption band 2 is after absorption position absorption uppermost sheet 1a, when moving to the first transporting position while making sheet material transport action standby, the interior generation sheet material in path 32 that transports in the downstream of sheet material conveyer 100 stops up sometimes.This occasion by moving like that below, can be removed the uppermost sheet 1a being adsorbed on adsorption band 2 in sheet material conveyer 100.

Fig. 6 A to Fig. 6 D is the action specification figure of the adsorption separation unit while there is sheet material obstruction.Fig. 7 is the block scheme of main portion of control part 70 that carries out the action control of adsorption separation unit 110.

Fig. 6 A is that uppermost sheet 1a is adsorbed on adsorption band 2, moves to the first transporting position and make sheet material transport action readiness for action.At this moment, the interior generation sheet material in path 32 that transports in the downstream of sheet material conveyer 100 stops up.Control part 70 is followed sheet material obstruction is occurred, and emergent stopping sheet material transports action, and as shown in Figure 6B, by swinging gear 120, adsorption separation unit 110 is moved to the second transporting position from the first transporting position.At this moment, uppermost sheet 1a keeps electrostatic adherence at the state of adsorption band 2.After moving to the second transporting position, as shown in Figure 6 C, by driver train (not diagram), drive adsorption band 2 revolutions, uppermost sheet 1a is delivered to the guiding parts 52 in carriage direction downstream, by transporting roller 51, towards sheet material incorporating section 53, transport.As shown in Figure 6 D, if incorporating section detection means 54 detects sheet material to being transported in sheet material incorporating section 53, stop driving adsorption band 2 revolutions.By this series of action, when there is sheet material obstruction, can make simply the uppermost sheet 1a that is adsorbed on adsorption band 2 move to sheet material incorporating section 53, in sheet material conveyer 100, remove.Control part 70 detects sheet materials to being transported in sheet material incorporating section 53 by incorporating section detection means 54, controls and stops driving adsorption band 2 revolutions, therefore, can really make the uppermost sheet 1a of absorption move to sheet material incorporating section 53.

In Fig. 6, illustrate to use to be located at the action that 53Nei incorporating section, sheet material incorporating section detection means 54 is carried out the processing of removing from sheet material conveyer 100.But, even if incorporating section detection means 54 is not set, also can be adsorbed on by following action the processing of the uppermost sheet 1a of adsorption band 2.The above-mentioned action from Fig. 6 A to Fig. 6 C is identical, calculates in advance the time that uppermost sheet 1a is transported to sheet material incorporating section 53.In action after Fig. 6 C, according to the time of calculating, continue to drive after adsorption band 2 revolutions, stop driving revolution.Thus, when there is sheet material obstruction, can, more simply to form, in sheet material conveyer 100, remove the uppermost sheet 1a that is adsorbed on adsorption band 2.

In duplicator 200, generally the transporting in path 32 of downstream at sheet material conveyer 100 is provided with and detects the sheet material detecting sensor (not diagram) that has or not sheet material.But, in sheet material conveyer 100, in configuration, sometimes when adsorption separation unit 110 is positioned at absorption position or the first transporting position, do not arrange and detect the sheet material detecting sensor that has or not sheet material on adsorption band 2.This occasion, when occurring to become and can not judge whether sheet material is adsorbed on the state of adsorption band 2 when sheet material stops up.Even this occasion, above-mentioned action is also effective.

Sheet material conveyer 100 can be provided with is with sheet material detection means 55, when making adsorption separation unit 110 move to the second transporting position, detects and have or not adsorption sheet on adsorption band 2.While making adsorption separation unit 110 move to the second transporting position, only, when having sheet material occasion by being with upper sheet material detection means 55 to detect, drive adsorption band 2 revolutions, then start sheet material and transport action.This is owing to sometimes can not judging whether sheet material is adsorbed on adsorption band 2 as mentioned above when there is sheet material obstruction.Again, sometimes by adsorption separation unit 110 to the movement of the second transporting position, be adsorbed on uppermost sheet 1a on adsorption band 2 because the adsorption affinity of sheet material weight or adsorption band 2 peels off, on sheet bundle 1, fall.Therefore, by being with upper sheet material detection means 55, when adsorption separation unit 110 moves to the second transporting position, detect and have or not sheet material, according to testing result, carry out transporting action towards the sheet material of sheet material incorporating section 53, can more suitably carry out sheet material processing.Be with sheet material detection means 55 as long as can detect and have or not sheet material when adsorption separation unit 110 moves to the second transporting position, for example can be located in adsorption separation unit 110.

Illustrated above in this example, the duplicator 200 of electrofax mode is as image processing system, uses the sheet bundle separator sheet of sheet material conveyer 100 from loading, and to the image forming part 30 of duplicator 200, transports, but the present invention is not limited thereto.The sheet material conveyer 100 of this example, except carrying on duplicator, can also carry the image processing system such as chopping machine, facsimile apparatus, offset press etc. beyond duplicator.Certainly, the sheet material conveyer 100 of this example is not limited to the image processing system of electrofax mode, also goes for image processing system such as ink-jetting style etc.

Again, the formation of sheet material conveyer 100 is an example, can carry out various distortion or improvement.For example, as adsorption band, can use the adsorption band of electrode baried type, metal sheet be imbedded to the band consisting of dielectric inner, by metal sheet is applied to voltage, make uppermost sheet 1a dielectric polarization, produce electrostatic adherence power.

Below, illustrate the present invention is applicable to as another example of the duplicator of the image processing system of electrofax mode.

Fig. 9 means the mode chart of the duplicator 200 that this example relates to.

This duplicator 200 comprises automatic manuscript-transporting device 59, and it is from the original copy bundle that is positioned in original tray 59a separated original copy one by one, and automatic paper feeding is to the contact glass in manuscript reading section 58.Again, comprise manuscript reading section 58, it reads by automatic manuscript-transporting device 59 and is transported to the original copy on contact glass.Also comprise the image forming part 30 that forms means as image, it for the sheet materials such as paper as recording-member from sheet feed section 52 Gong Give, forms image according to the original image being read by manuscript reading section 58.

Sheet feed section 52 is taken in the sheet bundle 1 of multiple sheet stacks, from this sheet bundle 1, will be positioned at its uppermost uppermost sheet 1a Gong Give to image forming part 50.In this example, image forming part 50 and sheet feed section 52 are divisible.

Image forming part 50, around the photosensitive material 61 as sub-image bearing member, is provided with charging unit 62, developing apparatus 64, photosensitive material clean-up device 65 etc.Again, image forming part 50 is provided with light writing unit (not diagram), for irradiating laser to photosensitive material 61, is also provided with the fixing device 55 etc. that the toner image on sheet material is carried out to photographic fixing.

In the image forming part 50 of above-mentioned formation, photosensitive material 61 revolutions simultaneously, first, make photosensitive material 61 uniform surface charged at charging unit 62.Then, from light writing unit (not diagram), according to the view data from inputs such as Personal Computer or word processors, or the original image data that read by manuscript reading section 58 irradiation laser 63, on photosensitive material 61, form electrostatic latent image.After this, by developing apparatus 64, toner is adhered to, make the electrostatic latent image can video, on photosensitive material 61, form toner image.

On the other hand, sheet feed section 52 one by one separator sheet transports, and touches and connects and stop with registration roller 53.Then,, with the time consistency of the formation toner image of image forming part 50, by touching with registration roller 53 sheet material that connects and stop, to the transfer section of photosensitive material 61 and transfer device 54 subtends, sending.In transfer section, the toner image on photosensitive material 61 is transferred on supplied with sheet material.

The sheet material that transfer printing has a toner image by 55 pairs of toner image photographic fixing of fixing device after, by exit roller, to 56, be discharged to ADF dish 57.On the other hand, remaining toner is removed at photosensitive material clean-up device 65 in the surface of the photosensitive material 61 after transfer printing toner image, cleans, the standby image that again forms.

Figure 10 means the block diagram that the summary of sheet feed section 52 forms, and Figure 11 means the mode chart of sheet feed section 52, and Figure 12 represents that the main portion of the adsorption separation unit 110 of sheet material conveyer forms.

Sheet feed section 52 comprises as the sheet feed cassette 11 of sheet material incorporating section and sheet material conveyer 100 formations, described sheet feed cassette 52 mountings are taken in multiple sheet materials, the sheet bundle that multiple sheet materials consist of 1 separation of described sheet material conveyer 100 from sheet feed cassette 11 is positioned at uppermost uppermost sheet 1a, transports.

As shown in figure 11, at sheet feed cassette 11, be provided with the base plate 7 of multiple sheet bundles 1 that load lamination.Between base plate 7 and the bottom of sheet feed cassette 11, the holding components 8 of support base 7 is installed with freely rotating.

As shown in figure 10, at sheet feed section 52, be provided with sheet material detection means 40, the uppermost sheet 1a that detects sheet bundle 1 comes the position setting.Sheet material detection means 40 consists of the gauge head 42 and the infiltration type optical pickocff 43 that are supported in freely rotating the axle 44 that is located at device body.

If by not having graphic drive motor to make holding components 8 revolutions, make base plate 7 increase, the sheet bundle 1 that is positioned in base plate 7 rises, and uppermost sheet 1a and gauge head 42 join.At this moment, the light accepting part 43a of infiltration type optical pickocff 43 receives the light of self-luminescent part 43b.If make base plate 7 further increase, gauge head 42 blocks the light of illuminating part 43b, and light accepting part 43a does not receive light.Thus, the uppermost sheet 1a that sheet bundle 1 detected comes the position setting, and stops holding components 8 revolutions.

Sheet material conveyer 100 comprises adsorption separation unit 110, and the conduct that this adsorption separation unit 110 is swung swings the swinging gear 120 of means, and makes driver train 130 that adsorption band 2 ring-types move etc.

Adsorption separation unit 110 as shown in figure 12, comprises that being erected at downstream sets up the adsorption band 2 that roller 5 and upstream side set up roller 6.Adsorption band 2 becomes the double-decker that comprises top layer and conductive layer, and described top layer is by having 10 ⁸the polyethylene terephthalate of 50 μ m left and right thicknesses of the above resistance of Ω cm forms, and described conductive layer forms by aluminium-vapour deposition, has 10 ⁶the following resistance of Ω cm.

By adsorption band 2 is made as to double-decker as described above, can use by the counter electrode using conductive layer as ground connection, electrod assembly 3 as charged means is given adsorption band 2 by electric charge, so long as the position joining with the top layer of adsorption band 2, where all right described electrod assembly 3 is located at.

In the inner side of the both sides of adsorption band 2 ora terminalis, be provided with horizontal rib 23 for prevention, setting up roller 5 and upstream side with downstream, to set up the both sides end face of roller 6 chimeric, prevents partially leaning on of band.

Roller 5 surfaces are set up in downstream, and to be provided with resistance value be 10 ⁶the conducting rubber layer of Ω cm, upstream side sets up roller 6 for metallic roll.Roller 5 is set up in downstream and upstream side sets up all ground connection of roller 6.

Downstream is set up roller 5 and is made as the path being suitable for from adsorption band 2 curvature separator sheet.That is, reduce downstream and set up roller 5 diameters, increase curvature, be adsorbed on the sheet material transporting on adsorption band 2 and leave downstream and set up roller 5, what can enter that guiding parts 10 by carriage direction downstream forms transports passage H.

As shown in figure 12, the axle 5a that roller 5 is set up in downstream is supported in housing 20 with freely rotating.

The axle 6a revolution that upstream side sets up roller 6 is supported in bearing 22, and described bearing 22 remains relative housing 20 and can slide towards sheet material carriage direction.By spring 21, bearing 22 is energized towards sheet material carriage direction upstream side.Thus, upstream side is set up to roller 6 and towards sheet material carriage direction upstream side, energize, to adsorption band 2, give tension force.

As shown in Figure 10 and Figure 11, adsorption separation unit 110 is provided with support 12 at bandwidth direction two ends, for swinging, keeps freely adsorption band 2.Along sheet material carriage direction, supporting axis 14 is located at the upstream side that upstream side sets up roller 6, and each support 12 is supported in supporting axis 14 with freely rotating.Thus, adsorption separation unit 110 is by swinging gear 120 described later, can take supporting axis 14 as fulcrum, at the uppermost sheet 1a that makes sheet bundle 1, be adsorbed on the absorption position of adsorption band 2 and swing for transporting between the transporting position of the uppermost sheet 1a that is adsorbed on adsorption band 2.

At each support 12, be provided with slotted hole 12a, upstream side sets up roller 6 and connects this slotted hole 12a.Thus, upstream side set up that roller 6 remains can move relative to support 12.

On the other hand, the axle 5a that roller 5 is set up in downstream connects the graphic hole that do not have that is located at support 12, and downstream is set up roller 5 and remained and can not move relative to support 12.As shown in figure 11, when adsorption separation unit 110 is during in transporting position, upstream side sets up the axle 6a of roller 6 and the lower end 41 of slotted hole 12a and touches and connect.

The slotted hole 12a that is located at support 12 becomes the circular shape centered by downstream bogie side frame is established the center of gyration of roller 5, even if the axle 6a that makes upstream side set up roller 6 moves in slotted hole 12a, upstream side sets up the center of gyration of roller 6 and distance that the center of gyration of roller 5 is set up in downstream does not change yet.Its result, moves in slotted hole 12a even if upstream side sets up the axle 6a of roller 6, and the tension force of adsorption band 2 can not change yet.

Conventionally, even if the tension force of adsorption band 2 is below 5N, can slippage between roller and band yet, can drive adsorption band 2 revolutions, transport the sheet material that is adsorbed on adsorption band 2.But, transport the sheet material occasion of connecting airtight the specific conditions such as paper that power is high, between adsorption band 2 and roller, may there is slippage.Therefore, preferably improve that upstream side sets up roller 6 or the friction coefficient on roller 5 surfaces is set up in downstream, make it be difficult to produce slippage.

Figure 13 is the summary pie graph that drives the rotating driver train 130 of adsorption band 2.

With freely rotating, support one end of the supporting axis 14 of each support 12, fixing driven the first belt wheel 26a and driving the second belt wheel 26b.At upstream side, set up one end of roller 6, fixing driven the second belt wheel 25, driven Timing Belt 28 is wound on driven the first belt wheel 26a and driven the second belt wheel 25.Along sheet material carriage direction, at the upstream side of supporting axis 14, be provided with drive motor 24, fixed drive the first belt wheel 27 on the motor shaft of drive motor 24.Drive Timing Belt 29 to be wound on and drive the first belt wheel 27 and drive on the second belt wheel 26b.

If drive described drive motor 24, by driving Timing Belt 29, driven Timing Belt 28 to drive upstream side to set up roller 6 revolutions.Thus, drive adsorption band 2 revolutions, roller 5 is set up because of the driven revolution that rubs of the inner face of adsorption band 2 in downstream.

As shown in Figure 10 and Figure 11, in sheet material carriage direction downstream, be provided with swinging gear 120, as the swing means that support 12 is swung.

Swinging gear 120 comprises that the conduct first of the sheet material carriage direction end of downstream side that is formed on each support 12 drives the tooth-strip part 13 of transfer part, and is fixed on axis of revolution 16, drives respectively the miniature gears 15 of transfer part with the conduct second of tooth-strip part 13 engagements.Swinging gear 120 also comprises oscillating motor 30.In one end of axis of revolution 16, be provided with the driven gear 32 meshing with the motor gear that is fixed on the motor shaft of oscillating motor 30.By making each miniature gears 15 be fixed on axis of revolution 16, with oscillating motor 30, make axis of revolution 16 revolutions, can make each miniature gears 15 revolutions.

Thus, can drive miniature gears 15 revolutions that are located at bandwidth direction two ends with an oscillating motor 30, can reduce amount of parts, make device cheap.Can be located at simply to form synchronous driving the miniature gears 15 at bandwidth direction two ends.

Tooth-strip part 13 becomes the R shape centered by supporting axis 14.When adsorption separation unit 110 swings, the tooth-strip part 13 that is formed on support 12 swings centered by supporting axis 14.Therefore,, by tooth-strip part 13 being made as to the R shape centered by supporting axis 14, when adsorption separation unit 110 swings, also can maintain the engagement of tooth-strip part 13 and miniature gears 15.

By the sheet material carriage direction end of downstream side at support 12, form tooth-strip part 13, compare with tooth-strip part (separate separately and be integral with the support 12) occasion of formation being in addition installed at support 12, can reduce amount of parts, make to simplify the structure.

Among the tooth bar/gear of swinging gear 120, owing in device side, gear being set, compare with gear being located to adsorption separation unit occasion, can make for driving the formation of transmitting to miniature gears simple.

By driving oscillating motor 30, each miniature gears 15 revolutions, tooth-strip part 13 is towards moving relative to sheet bundle 1 contact/disengaging direction.Thus, each support 12 be take supporting axis 14 as a spot wobble.

Each support 12 links fixing by strengthening part 70.Owing to linking and fixing each support 12 by strengthening part 70, can make a side support and the opposing party's support one swing.Thus, can suppress to remain on when support swings adsorption band 2 distortions of support, energy restrain adsorption is separated with adsorption band 2 at the uppermost sheet 1a of adsorption band 2.

As shown in figure 14, as the tabular electrod assembly 3 of scraping of the charging facility of adsorption band 2 surface chargings is joined with adsorption band 2 surfaces.Electrod assembly 3 is connected with the power supply 4 that occurs to exchange.By electrod assembly 3 is made as, scrape tabularly, easily make the little spacing in charging interval of alternation, even there is small fluctuating at adsorption band 2, also can stably charge.

In this example, use and scrape tabular electrod assembly 3 as charging facility, but also can use roller shape electrod assembly 103 as shown in Figure 15.

Below, with reference to Figure 16, illustrate that the sheet material of the sheet material conveyer 100 that uses this example transports action.

As shown in Figure 16 A, conventionally, base plate 7 is positioned at lowering position, and adsorption separation unit 110 is positioned at absorption position.First, if the input of paper supply signal drives oscillating motor 30, Drive pinion 15, towards diagram revolution clockwise, makes adsorption separation unit 110 take supporting axis 14 as fulcrum is towards diagram counterclockwise (leaving the direction of sheet bundle 1) swing.Then,, if adsorption separation unit 110 swings to transporting position, stop driving oscillating motor 30.

If adsorption separation unit 110 stops at transporting position,, as shown in Figure 16 B, drive described drive motor 24, adsorption band 2 ring-types are moved.Then, the adsorption band 2 being moved to ring-type by electrod assembly 3 by power supply 4 applies alternating voltage, forms the electric charge figure with the corresponding spacing of the circumferential moving velocity with ac power frequency and adsorption band 2 (spacing can be made as 5-15mm left and right) alternation on the surface of adsorption band 2.Power supply 4, except exchanging, also can, so that direct current is changed to the current potential that height replaces, can be considered square wave, sinusoidal waveform etc.In this example, for adsorption band 2 surfaces, apply the square wave with 4kV amplitude.

If finish to adsorption band 2 chargings,, as shown in Figure 16 C, stop adsorption band 2 revolutions, meanwhile, make to start to rise at the base plate 7 of lowering position standby.Therewith, oscillating motor 30 reverse backs are turned, make miniature gears 15 towards diagram counterclockwise revolution, make adsorption separation unit 110 take supporting axis 14 for fulcrum is towards the diagram swing that (approaches the direction of sheet bundle 1) clockwise.If base plate 7 rises, adsorption separation unit 110 declines, and the uppermost sheet 1a of sheet bundle 1 sets up roller 6 by adsorption band 2 and upstream side and joins.

If further make base plate 7 increase, adsorption separation unit 110 declines, and upstream side sets up roller 6 and risen by sheet bundle 1 pushing, touches the upstream side connecing on one side set up roller 6 and led by slotted hole 12a to move towards top with the lower end 41 of slotted hole 12a.

Follow base plate 7 to rise, gauge head 42 is towards the revolution of diagram counterclockwise.Then, if the uppermost sheet 1a of sheet bundle 1 comes the position setting, this gauge head 42 covers the light of the illuminating part 43b of infiltration type optical pickocff 43, and the uppermost sheet 1a that sheet material detection means 40 detects sheet bundle 1 comes the position setting, and stops base plate 7 and rises.

If adsorption separation unit 110 arrives absorption position, motor 30 revolutions stop swinging.Oscillating motor 30 is stepping motor occasion, according to degreeof turn (pulse count), controls oscillating motor 30, can make adsorption separation unit 110 precision stop at well absorption position.Oscillating motor 30 is DC motor occasion, according to driving time, controls oscillating motor 30, can make adsorption separation unit 110 precision stop at well absorption position.

As shown in Figure 16 D, if stop base plate 7, rise, stop adsorption separation unit 110 and decline (swing), adsorption band 2 joins with the region of sheet bundle 1 subtend and the uppermost sheet 1a of sheet bundle 1.If adsorption band 2 joins with uppermost sheet 1a, the electric charge figure because of adsorption band 2 surfaces forms non-uniform electric field, for as dielectric sheet material, acts on Mx (Maxwell) stress, and the uppermost sheet 1a of sheet bundle 1 is adsorbed on adsorption band 2.

Under state shown in Figure 16 D, standby sets the time, if uppermost sheet 1a is adsorbed onto on adsorption band 2, drive oscillating motor 30, Drive pinion 15, towards diagram revolution clockwise, makes adsorption separation unit 110 take supporting axis 14 as fulcrum is towards the swing of diagram counterclockwise.So roller 5 is set up together with support 12 in downstream, towards the direction of leaving sheet bundle 1, move.

On the other hand, upstream side sets up roller 6 and does not leave above sheet bundle 1 and move because of deadweight, and support 12 relatively moves towards sheet bundle 1 direction relatively.Thus, adsorption band 2 is established by upstream bogie side frame centered by the center of gyration of roller 6, carry out to swing such action, the uppermost sheet 1a that is adsorbed on adsorption band 2 take adsorption band 2 to be wound on the part that upstream side sets up roller 6 be that fulcrum is crooked.Its result, restoring force acts on the sheet material that is adsorbed on adsorption band 2, and only uppermost sheet 1a is adsorbed on adsorption band 2, can make second sheet material 1b separated by sheet material restoring force.

If adsorption separation unit 110 be take supporting axis 14 as fulcrum is further towards diagram counterclockwise revolution, upstream side sets up roller 6 and touches and connect with the lower end 41 of slotted hole 12a.Like this, if set up roller 6 from upstream side, touch with the lower end 41 of slotted hole 12a the state of connecing, further make adsorption separation unit 110 revolutions, upstream side sets up roller 6 and also moves together with support 12, upstream side set up roller 6 leave sheet bundle 1 above.

As shown in Figure 16 E, if stop adsorption separation unit 110, arrive the transporting position that transports sheet material, stop driving oscillating motor 30.Then, drive described drive motor 24, adsorption band 2 ring-types are moved, the uppermost sheet 1a that is adsorbed on adsorption band 2 is transported 9 towards transporting roller.

If electrostatic adherence sets up the winding part of roller 5 in the downstream of the front end arrival adsorption band 2 of the uppermost sheet 1a of adsorption band 2, separated with adsorption band 2 by curvature separation, be subject to guiding parts 10 guiding on one side, towards transport roller to 9 move (with reference to Figure 16 E) on one side.

Transport roller identical with the linear velocity of adsorption band 2 to 9, transport roller and get and drive such occasion synchronous intermittence 9, control drive motor 24, adsorption band 2 is also intermittently driven.Also can be provided with magnetic clutch at driver train 130, by controlling magnetic clutch, control driving adsorption band 2.

Below, illustrate that sheet material of the present invention peels off action.

The paper supply action of using in the sheet material conveyer of recording in patent documentation 1, as shown in Figure 17 A, Figure 17 B, makes, after adsorption separation unit 110 and sheet bundle 1 crimping, to move it transporting position, makes sheet separation, transports action.

But in the conveyer of this electrostatic adherence separate mode, if because of sheet material output action emergent stoppings such as paper obstructions, uppermost sheet 1a keeps sticking to the state of adsorption band 2 because residual charge becomes.

For this reason, operator is adsorbed under adsorption band state and carries out plugging handling at maintenance sheet material, and plugging handling operation becomes miscellaneous.Again, if keeping whole or local the sticking under the state of adsorption band 2 of uppermost sheet 1a, operator carries out plugging handling, worries that naked eyes can not see the uppermost sheet 1a that sticks to adsorption band 2, forgets and removes.Again, sheet feed cassette 11 is pulled out while carrying out plugging handling from device body, the part of worrying uppermost sheet hangs in device and breaks etc., plugging handling difficulty.

So, in the sheet material conveyer of this example, be provided with sheet material mechanism for stripping 80, contact with the uppermost sheet 1a that is adsorbed on adsorption band 2, can peel off uppermost sheet 1a from adsorption band 2.And, when carrying out plugging handling etc., by sheet material mechanism for stripping 80, automatically from adsorption band 2, strip uppermost sheet 1a, address this is that.

[configuration example 1]

Fig. 8 A to Fig. 8 C is from axially seeing the action specification figure of the projecting part of adsorption separation unit 110 occasions that comprise projecting part 81.Figure 18 is the figure that sees the adsorption separation unit 110 that comprises projecting part 81 from top.

The sheet material mechanism for stripping 80 that is located at sheet material conveyer comprises projecting part 81, and the adsorption plane of its downside from adsorption band 2 (with sheet bundle 1 subtend) is outstanding, pushing be adsorbed on adsorption band 2 uppermost sheet 1a not with adsorption band 2 contact positions.Projecting part 81 can be in the axial outside of adsorption band 2, centered by axis of revolution, between reception position in extrusion position and adsorption band 2, turn round, described extrusion position refers to that leading section is from the outstanding position of adsorption plane of adsorption band 2 downsides, and described reception position refers to from extrusion position to be kept out of the way not from the outstanding position of above-mentioned adsorption plane.

It is coaxial that the axis of revolution of projecting part 81 and upstream side set up the axle 6a of roller 6, is provided with the power-transfer clutch 84 as mono-directional overrun clutch, links so that the axle 6a that sets up roller 6 from above-mentioned upstream side drives projecting part 81 revolutions, or above-mentioned link is removed.

During gyratory directions (diagram counterclockwise, just turns round) revolution when the axle 6a that sets up roller 6 when upstream side transports with sheet material, this power-transfer clutch 84 drives to link and removes, and the axle 6a transmission of not setting up roller 6 from upstream side is driven into projecting part 81.On the other hand, the axle 6a that sets up roller 6 when upstream side, with when just turning round reverse (clockwise, reverse back turns diagram) revolution, links and drives, and the axle 6a that sets up roller 6 from upstream side transmits and is driven into projecting part 81.

As shown in Figure 8 A, projecting part 81 be made as upstream side is set up to roller 6 axle 6a as center of gyration, can be in the revolution of the axial outside of adsorption band 2.In the outer lateral side of housing 20, be provided with revolution limiting part 82, by projecting part 81 and 82 crimping below of revolution limiting part, the revolution range of restriction projecting part 81.

And when adsorption separation unit 110 is during in absorption position, by spring 83, projecting part 81 and 82 crimping below of revolution limiting part, can be outstanding from the adsorption plane of adsorption band 2, can remain on the stable receiving state of above-mentioned reception position.Therefore, the absorption of 2 couples of uppermost sheet 1a of adsorption band action is not harmed by projecting part 81 can.

As shown in Figure 8 B, during gyratory directions (just turning round) revolution when the axle 6a that sets up roller 6 when upstream side transports with sheet material, because power-transfer clutch 84 drives to link, remove, the axle 6a that driving is not set up roller 6 from upstream side is delivered to projecting part 81.Therefore, be only configured to the power of energizing from spring 83, projecting part 81 continues crimping below with revolution limiting part 82.Therefore, according to this, form, when adsorption separation unit 110 is carried out from the separating action of sheet bundle 1 separated uppermost sheet 1a or transported action, projecting part 81 also can be outstanding from the adsorption plane of adsorption band 2, can keep stable receiving state.

And, if occur paper obstruction etc. transport bad, for example according to from the detection signal that there is no graphic jam detection sensor being located in device, by not having graphic control part to control drive motor 24, as shown in Figure 8 C, the axle 6a reverse back that makes upstream side set up roller 6 turns.So the axle 6a that sets up roller 6 from upstream side transmits drive to projecting part 81 by power-transfer clutch 84, projecting part 81 is outstanding from the adsorption plane of adsorption band 2 downsides towards the leading section of above-mentioned extrusion position revolution projecting part 81 from above-mentioned reception position.

Thus, when what transport the uppermost sheet 1a such as bad, transport action while stopping, can from adsorption band 2 pushings, peel off the uppermost sheet 1a that is adsorbed on adsorption band 2 by projecting part 81.Therefore, when operator carries out plugging handling, at uppermost sheet 1a, from adsorption band 2, peel off state, operator can carry out plugging handling.Therefore, during with plugging handling, need operator to compare by the operation occasion that hand strips uppermost sheet 1a from adsorption band 2, can suppress plugging handling operation miscellaneous.

When operator carries out plugging handling, can suppress naked eyes and can not see and stick to the uppermost sheet 1a of adsorption band 2 and forget and remove.Again, can suppress sheet feed cassette 11 to be pulled out while carrying out plugging handling from device body, the part of uppermost sheet hangs in device and breaks to wait and cause that plugging handling is difficult.

In this configuration example, on one side can make uppermost sheet 1a towards returning against direction with sheet material carriage direction, Yi Bian peel off uppermost sheet 1a from adsorption band 2 pushings, therefore, improve and strip effect.Again, can be with transporting with sheet material the outstanding action (revolution action) that same drive source carries out projecting part 81, therefore, and in order to make projecting part 81 revolutions, special-purpose drive source occasion is set in addition and compares, can with cheap, simple form realize this action.

In above-mentioned example, use mono-directional overrun clutch, as power-transfer clutch 84, link to set up axle 6a driving projecting part 81 revolutions of roller 6 from upstream side, or above-mentioned link is removed, but the present invention is not limited thereto, also can use slip clutch (slippage power-transfer clutch) etc.Thus, for example, can form as follows.

That is, when the axle 6a that sets up roller 6 when upstream side turns round towards carriage direction, to projecting part 81, transmit and drive revolution, follow the revolution that upstream side sets up the axle 6a of roller 6, become projecting part 81 not from the outstanding receiving state of the adsorption plane of adsorption band 2.

At this moment, make revolution limiting part 82 crimping such shown in projecting part 81 and Fig. 8 A etc., restriction projecting part 81 continues revolution, can be not outstanding from the adsorption plane of the upside of adsorption band 2, can keep stable receiving state.

And, if setting up the axle 6a of roller 6, upstream side stops revolution, remove the rotating link of above-mentioned driving, and by projecting part 81 deadweights, fall or push the means of energizing such as spring and energize, make projecting part 81 outstanding from the adsorption plane of adsorption band 2.

[configuration example 2]

Figure 19 is the figure of the adsorption separation unit 110 of seeing that from top configuration example 2 relates to.

In configuration example 1, as shown in figure 18, be made as with an adsorption separation unit 110 cover sheets Widths integral body, be configured to the Width two ends of projecting part 81 pushing uppermost sheet 1a.Therefore, can not push the Width central portion of peeling off the uppermost sheet 1a that is adsorbed on adsorption band 2, exist pushing to peel off the restricted possibility of effect.

So, in this configuration example, as shown in figure 19, whole with two adsorption separation unit, 110 cover sheets width, not only with projecting part 81, push the Width two ends of uppermost sheet 1a, and, projecting part 81 between two adsorption separation unit 110, be provided with.Thus, with the Width central portion of projecting part 81 pushing uppermost sheet 1a, can peel off from adsorption band 2.Therefore, can more effectively from adsorption band 2 pushings, peel off uppermost sheet 1a.

Can by projecting part 81, from adsorption band 2 pushings, peel off the Width central portion of uppermost sheet 1a, therefore, the small size sheet material less than the axial length of adsorption band 2 also can be corresponding.

Thus, when paper occurring stop up the plugging handling operation of occasion etc., can suppress operator and in small size sheet material integral body, be adsorbed on naked eyes under adsorption band 2 states and find difficulty and forget and remove.

In this configuration example, make two adsorption separation unit 110 in sheet width direction alignment arrangements, but, also can, by two above adsorption separation unit 110 in sheet width direction alignment arrangements, arrange a plurality of from projecting part 81 outstanding between the unit of adsorption separation unit 110.Thus, increase by projecting part 81 and push uppermost sheet 1a place towards the direction of leaving the adsorption plane of adsorption band 2, improve the effect of peeling off uppermost sheet 1a from adsorption band 2 pushings.

Above-mentioned explanation is an example, and the present invention has distinctive effect in following form:

[form A]

Sheet material conveyer 100 comprises:

Adsorption separation unit 110, be provided with adsorption band 2 and band driving means, described adsorption band 2 configures with the subtend above of the sheet bundle 1 of mounting, the uppermost sheet 1a of this sheet bundle of electrostatic adherence, band driving means makes this adsorption band surface mobile, transport the uppermost sheet of absorption, this adsorption separation unit is supported in the holding components of supporting axis 14 grades with freely rotating; And

The swing means of swinging gear 120 grades, take this holding components swings as fulcrum makes this adsorption separation unit, this adsorption band is moved between absorption position and the first transporting position, described absorption position is adsorbed on this adsorption band by the uppermost sheet of this sheet bundle, and described the first transporting position transports the uppermost sheet that is adsorbed on this adsorption band.

In this sheet material conveyer, swing means swing adsorption separation unit, make adsorption band move to second transporting position different from above-mentioned the first transporting position, described the second transporting position refers to towards the sheet material incorporating section 53 that is provided in sheet material carriage direction downstream, transports the position of the uppermost sheet that is adsorbed on above-mentioned adsorption band.

In [form A], swing means swing adsorption separation unit, except absorption position and the first transporting position, also move to the second transporting position.The first transporting position in its carriage direction downstream, be provided with towards image forming part etc. transport be adsorbed on adsorption band uppermost sheet transport path.The second transporting position is different from the first transporting position, in its carriage direction downstream, sets sheet material incorporating section.When the carriage direction downstream at the first transporting position, transport path when sheet material occurring stopping up, by swing means, adsorption separation unit is swung, make adsorption band obtain the second transporting position, the sheet material that sticks to adsorption band state can be transported towards the sheet material incorporating section in the carriage direction downstream of the second transporting position.Therefore,, when the occasions such as sheet material obstruction occur, can in sheet material conveyer, remove well the sheet material that sticks to adsorption band state.

[form B]

In [form A], be provided with and detect the incorporating section sheet material detection means 54 that has or not sheet material in sheet material incorporating section 53, being provided with control part 70 controls, when there is paper obstruction, under the state being moved by the surface that stops adsorption band with driving means, by swing means, adsorption separation unit is swung, adsorption band is obtained the second transporting position, in the second transporting position, by the surface that starts adsorption band with driving means, moved, continuing has sheet material until incorporating section sheet material detection means detects in sheet material incorporating section.

Thus, as above-mentioned example explanation, when there is paper obstruction, also can really in sheet material conveyer, transport the sheet material that sticks to adsorption band state, can remove sheet material and process.

[form C]

In [form A], being provided with control part 70 controls, when there is paper obstruction, under the state being moved by the surface that stops adsorption band with driving means, by swing means, adsorption separation unit is swung, adsorption band is obtained the second transporting position, in the second transporting position, by the surface that starts adsorption band with driving means, moved, continue for making sheet material be transported to the needed time of sheet material incorporating section from adsorption band.

Thus, as the explanation of above-mentioned example like that, when there is paper and stop up, also can be really from sheet material conveyer, transport stick to adsorption band state sheet material to sheet material incorporating section 53, can remove sheet material processing.This formation is compared with [form B], can remove sheet material processing more simply to form.

[form D]

In [form B] or [form C], be provided with and be with sheet material detection means 55, when adsorption band moves to the second transporting position, detecting sheet material has or not and is adsorbed onto on adsorption band, control part is controlled, when this is with upper sheet material detection means sheet material to be detected to be adsorbed onto on this adsorption band, by the surface of carrying out this adsorption band of the second transporting position with driving means, moved.Due to the movement of adsorption separation unit to the second transporting position, be adsorbed on the uppermost sheet of adsorption band sometimes because the adsorption affinity of sheet material weight or adsorption band peels off, drop on sheet bundle.By being with upper sheet material detection means, when adsorption separation unit moves to the second transporting position, detect and have or not sheet material, carry out accordingly transporting action to the sheet material of sheet material incorporating section, can more suitably carry out sheet material processing.

[form E]

The sheet material conveyer of sheet material conveyer 100 grades comprises:

The adsorption band of rotating ring-type adsorption band 2 grades of energy, the configuration of subtend above with the sheet bundle 1 loading, is adsorbed on above-mentioned adsorption band by the uppermost sheet of above-mentioned sheet bundle and transports;

Be provided with the charging facility of electrod assembly 3 and power supply 4 etc., make the surface charging of above-mentioned adsorption band; And

The sheet material of sheet material mechanism for stripping 80 grades is peeled off means, contacts with the above-mentioned uppermost sheet that is adsorbed on above-mentioned adsorption band, can peel off this uppermost sheet from this adsorption band.

In [form E], when transporting bad grade and stop when action of transporting of uppermost sheet, can peel off means by sheet material and from adsorption band, peel off the above-mentioned uppermost sheet that is adsorbed on above-mentioned adsorption band.Thus, when operator carries out plugging handling, can, peeling off from adsorption band the state of uppermost sheet, carry out plugging handling.Therefore, during with plugging handling, need operator to compare by the operation occasion that hand is peeled off uppermost sheet from adsorption band, can suppress plugging handling miscellaneous.

[form F]

In [form E], described sheet material conveyer comprises:

The adsorption separation unit of adsorption separation unit 110 grades, be provided with above-mentioned adsorption band, the downstream of setting up this adsorption band is set up first of roller 5 grades and is set up roller, and is positioned at this first upstream side that sets up the sheet material carriage direction upstream side of roller and sets up second of roller 6 etc. and set up roller; And

The mobile means of swinging gear 120 grades, above-mentioned adsorption separation unit is moved, this adsorption band is moved back and forth between absorption position and transporting position, described absorption position refers to that the uppermost sheet Contact-sorption of the uppermost sheet (1a) etc. that makes above-mentioned sheet bundle is in the position of above-mentioned adsorption band, described transporting position refers to the position of transporting the uppermost sheet that is adsorbed on this adsorption band, compare the position of leaving from sheet bundle with this absorption position;

Above-mentioned sheet material is peeled off the projecting part that means are provided with projecting part 81 grades, axial outside at above-mentioned adsorption band, centered by the axis of revolution of axle 6a etc., position that can be outstanding at the adsorption plane from this adsorption band and keep out of the way not between the outstanding position of this adsorption plane and turn round from this extrusion position.

Thus, as above-mentioned example explanation, projecting part is outstanding from the adsorption plane of adsorption band, can push and peel off the sheet material that is adsorbed on adsorption band.

[form G]

In [form F], sheet material conveyer comprises:

The driving means of driver train 130 grades, is provided with the drive motor 24 that roller is set up in driving above-mentioned second; And

The driving of power-transfer clutch 84 grades links switch means, above-mentioned second, set up between the axis of revolution of roller and the axis of revolution of above-mentioned projecting part, drive to link and remove to drive and link, when gyratory directions when above-mentioned second sets up roller and transport with sheet material is just being turned round, above-mentioned projecting part does not turn round, this projecting part is positioned at above-mentioned not extrusion position, set up roller just to turn round reverse reverse back while turning with above-mentioned when above-mentioned second, above-mentioned projecting part turns round towards above-mentioned extrusion position from above-mentioned not extrusion position.

Thus, as the explanation of above-mentioned example like that, can carry out with forward/reverses of same drive motor that sheet material transports and the outstanding action of projecting part, can cheapness, formation simply.

[form H]

In [form F], sheet material conveyer comprises:

The driving means of driver train 130 grades, is provided with the drive motor 24 that roller is set up in driving above-mentioned second; And

The driving of slip clutch etc. links switch means, above-mentioned second, set up between the axis of revolution of roller and the axis of revolution of above-mentioned projecting part, drive to link and remove to drive and link, when gyratory directions when above-mentioned second sets up roller and transport with sheet material is just being turned round, above-mentioned projecting part revolution, this projecting part is positioned at above-mentioned not extrusion position, if above-mentioned second set up roller revolution and stop, above-mentioned projecting part turns round towards above-mentioned extrusion position from above-mentioned not extrusion position.

Thus, as the explanation of above-mentioned example like that, can with same drive source carry out that sheet material transports and projecting part to the revolution action of reception position, can be cheap, formation simply.

[form I]

In any form of [form F] to [form H], be provided with the revolution range limiting means of the revolution range of the above-mentioned projecting part of restriction.

Thus, as above-mentioned example explanation, can be not outstanding from the adsorption plane of adsorption band, can keep stable receiving state.

[form J]

In [form I], above-mentioned revolution range limiting means makes above-mentioned projecting part and the limiting part crimping of turning round limiting part 82 grades by the elastic body of spring 83 grades, limits the revolution range of this projecting part.

Thus, as above-mentioned example explanation, when projecting part is taken in, projecting part, can be not outstanding from the adsorption plane of adsorption band by elastic body and limiting part crimping, can keep stable receiving state.

[form K]

In any form of [form F] to [form I], with sheet material carriage direction orthogonal directions, be sheet width direction, be provided with a plurality of above-mentioned adsorption separation unit.

Thus, as above-mentioned example explanation, can, by making projecting part from outstanding a plurality of between adsorption band, improve from the effect of adsorption band pushing releasing sheet.Again, can near sheet width direction central authorities, make projecting part outstanding, can push and peel off undersized sheet material.

[form L]

In any form of [form E] to [form K], along sheet material carriage direction, holding components is located at the above-mentioned second upstream side that sets up roller, and above-mentioned mobile means be take this holding components as fulcrum, and above-mentioned adsorption separation unit is swung.

Thus, as above-mentioned example explanation, can adopt the structure that above-mentioned adsorption separation unit is swung.

[form M]

Image processing system comprises:

The image of image forming part 50 grades forms means, forms image on sheet material; And

Sheet material transports means, from the sheet bundle separator sheet of mounting, to these image formation means, transports;

The sheet material conveyer that uses any form record of [form A] to [form L], transports means as above-mentioned sheet material.

Thus, as above-mentioned example explanation, the processing in the time of easily occurring to stop up, can carry out pushing peel adhesion well in the action of the sheet material of the adsorption band of sheet material conveyer.

Above with reference to accompanying drawing, example of the present invention has been described, but the present invention is not limited to above-mentioned example.In the technology of the present invention thought range, can do all changes, they all belong to protection scope of the present invention.

Claims (13)

1. a sheet material conveyer, is characterized in that:

Described sheet material conveyer comprises:

Adsorption separation unit, be provided with adsorption band and band driving means, the configuration of subtend above of the sheet bundle of described adsorption band and mounting, the uppermost sheet of this sheet bundle of electrostatic adherence, band driving means makes this adsorption band surface mobile, transport the uppermost sheet of absorption, this adsorption separation unit is supported in holding components with freely rotating; And

Swing means, take this holding components swings as fulcrum makes this adsorption separation unit, this adsorption band is moved between absorption position and the first transporting position, described absorption position is adsorbed on this adsorption band by the uppermost sheet of this sheet bundle, and described the first transporting position transports the uppermost sheet that is adsorbed on this adsorption band;

Above-mentioned swing means swing above-mentioned adsorption separation unit, make this adsorption band move to second transporting position different from above-mentioned the first transporting position, described the second transporting position refers to towards the sheet material incorporating section that is provided in sheet material carriage direction downstream, transports the position of the uppermost sheet that is adsorbed on above-mentioned adsorption band.

2. sheet material conveyer according to claim 1, is characterized in that:

Be provided with and detect the incorporating section sheet material detection means that has or not sheet material in above-mentioned sheet material incorporating section, being provided with control part controls, when there is paper obstruction, under the state being moved by the above-mentioned surface that stops above-mentioned adsorption band with driving means, by above-mentioned swing means, above-mentioned adsorption separation unit is swung, this adsorption band is obtained above-mentioned the second transporting position, in this second transporting position, move on the surface that starts this adsorption band with driving means by this, and continuing has sheet material until this incorporating section sheet material detection means detects in this sheet material incorporating section.

3. sheet material conveyer according to claim 1, is characterized in that:

Being provided with control part controls, when there is paper obstruction, under the state being moved by the above-mentioned surface that stops above-mentioned adsorption band with driving means, by above-mentioned swing means, above-mentioned adsorption separation unit is swung, this adsorption band is obtained above-mentioned the second transporting position, in this second transporting position, move on the surface that starts this adsorption band with driving means by this, continues for making sheet material be transported to the needed time of above-mentioned sheet material incorporating section from this adsorption band.

4. according to the sheet material conveyer described in claim 2 or 3, it is characterized in that:

Be provided with and be with sheet material detection means, when above-mentioned adsorption band moves to above-mentioned the second transporting position, detecting sheet material has or not and is adsorbed onto on this adsorption band, above-mentioned control part is controlled, when this is with upper sheet material detection means sheet material to be detected to be adsorbed onto on this adsorption band, by above-mentioned surface of carrying out this adsorption band of this second transporting position with driving means, moved.

5. a sheet material conveyer, is characterized in that:

Described sheet material conveyer comprises:

The rotating ring-type adsorption band of energy, the configuration of subtend above with the sheet bundle loading, is adsorbed on above-mentioned adsorption band by the uppermost sheet of above-mentioned sheet bundle and transports;

Charging facility, makes the surface charging of above-mentioned adsorption band; And

Sheet material is peeled off means, contacts with the above-mentioned uppermost sheet that is adsorbed on above-mentioned adsorption band, can peel off this uppermost sheet from this adsorption band.

6. sheet material conveyer according to claim 5, is characterized in that:

Described sheet material conveyer comprises:

Adsorption separation unit, is provided with above-mentioned adsorption band, set up first of this adsorption band and set up roller, and be positioned at this first set up roller sheet material carriage direction upstream side second set up roller; And

Mobile means, above-mentioned adsorption separation unit is moved, this adsorption band is moved back and forth between absorption position and transporting position, described absorption position refers to and makes the uppermost sheet Contact-sorption of above-mentioned sheet bundle in the position of above-mentioned adsorption band, described transporting position refers to the position of transporting the uppermost sheet that is adsorbed on this adsorption band, compare the position of leaving from sheet bundle with this absorption position;

Above-mentioned sheet material is peeled off means and is provided with projecting part, in the axial outside of above-mentioned adsorption band, and centered by axis of revolution, position that can be outstanding at the adsorption plane from this adsorption band and keep out of the way not between the outstanding position of this adsorption plane and turn round from this extrusion position.

7. sheet material conveyer according to claim 6, is characterized in that, comprising:

Driving means, drives above-mentioned second to set up roller; And

Drive and link switch means, above-mentioned second, set up between the axis of revolution of roller and the axis of revolution of above-mentioned projecting part, drive to link and remove to drive and link, when gyratory directions when above-mentioned second sets up roller and transport with sheet material is just being turned round, above-mentioned projecting part does not turn round, this projecting part is positioned at above-mentioned not extrusion position, sets up roller just to turn round reverse reverse back while turning with above-mentioned when above-mentioned second, and above-mentioned projecting part turns round towards above-mentioned extrusion position from above-mentioned not extrusion position.

8. sheet material conveyer according to claim 6, is characterized in that, comprising:

Driving means, drives above-mentioned second to set up roller; And

Drive and link switch means, above-mentioned second, set up between the axis of revolution of roller and the axis of revolution of above-mentioned projecting part, drive to link and remove to drive and link, when gyratory directions when above-mentioned second sets up roller and transport with sheet material is just being turned round, above-mentioned projecting part revolution, this projecting part is positioned at above-mentioned not extrusion position, if above-mentioned second set up roller revolution and stop, above-mentioned projecting part turns round towards above-mentioned extrusion position from above-mentioned not extrusion position.

9. the sheet material conveyer described in any according to claim 6-8, is characterized in that:

Be provided with the revolution range limiting means of the revolution range of the above-mentioned projecting part of restriction.

10. sheet material conveyer according to claim 9, is characterized in that:

Above-mentioned revolution range limiting means makes above-mentioned projecting part and limiting part crimping by elastic body, limits the revolution range of this projecting part.

11. according to claim 6-10 the sheet material conveyer described in any, it is characterized in that:

With sheet material carriage direction orthogonal directions, be sheet width direction, be provided with a plurality of above-mentioned adsorption separation unit.

12. according to claim 5-11 the sheet material conveyer described in any, it is characterized in that:

Along sheet material carriage direction, holding components is located at the above-mentioned second upstream side that sets up roller, and above-mentioned mobile means be take this holding components as fulcrum, and above-mentioned adsorption separation unit is swung.

13. 1 kinds of image processing systems, comprising:

Image forms means, forms image on sheet material; And

Sheet material transports means, from the sheet bundle separator sheet of mounting, to these image formation means, transports;

Described image processing system is characterised in that:

The sheet material conveyer that right to use requires any record in 1-12, transports means as above-mentioned sheet material.