CN100470389C - Sheet processing apparatus and image forming apparatus - Google Patents

Sheet processing apparatus and image forming apparatus Download PDF

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Publication number
CN100470389C
CN100470389C CNB2006101607939A CN200610160793A CN100470389C CN 100470389 C CN100470389 C CN 100470389C CN B2006101607939 A CNB2006101607939 A CN B2006101607939A CN 200610160793 A CN200610160793 A CN 200610160793A CN 100470389 C CN100470389 C CN 100470389C
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China
Prior art keywords
thin slice
alignment
readiness
sheet handling
sheet
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CNB2006101607939A
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Chinese (zh)
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CN1975590A (en
Inventor
櫛田秀树
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佳能株式会社
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Priority to JP2005348548 priority
Priority to JP2006270798 priority
Application filed by 佳能株式会社 filed Critical 佳能株式会社
Publication of CN1975590A publication Critical patent/CN1975590A/en
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Publication of CN100470389C publication Critical patent/CN100470389C/en

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Abstract

The invention relates to a sheet processing apparatus and image forming apparatus. The sheet processing apparatus has: a plurality of conveying paths which convey sheets; and front and back aligning members which perform width alignment in the direction which crosses the sheet conveying direction of the sheets conveyed from the conveying paths. Standby positions when the front and back aligning members approach side edges of the sheets from the standby positions and perform the width alignment of the sheets at the width aligning position are made different every sheet on the basis of discharge position information of the sheets to the plurality of conveying paths.

Description

Sheet handling device and image processing system

Technical field

The present invention relates to a kind of make thin slice with direction that the thin slice throughput direction of this thin slice intersects on the sheet handling device and a kind of image processing system that align with this sheet handling device.In particular, the present invention relates to a kind of sheet handling device and a kind of image processing system, in this sheet handling device,, also can handle thin slice with the short processing time even there are a plurality of transport paths that send thin slice of giving with this sheet handling device.

Background technology

In recent years, among printer, duplicating machine, facsimile recorder and multi-function device thereof etc. are used for image is formed on image processing system on the thin slice, have a kind of image processing system, it has the sheet handling device that is used for discharging with the form of bundle thin slice.As such sheet handling device, for example, just like disclosed thin slice collating unit in the Japanese kokai publication sho 61-33459 communique (sheet sorting apparatus).

According to this thin slice collating unit, when thin slice was discharged from, it was alternately put in order and is piled up with pencil that (biasing is piled up, and offset-stacking), thereby the thin slice bundle can be distinguished by clear.Figure 15 A and Figure 15 B are the synoptic diagram of disclosed thin slice collating unit in the Japanese kokai publication sho 61-33459 communique.

According to thin slice collating unit 1, the thin slice of being carried by fixing roller 5 and photographic fixing distributing roller 6 is used as distributing roller right top roll 8 and lower roll 7 discharges.After the thin slice rear end was by photographic fixing distributing roller 6, top roll 8 and lower roll 7 were discharged the direction displacement L that direction is intersected by plunger magnet 11 edges with thin slice, thereby thin slice is expelled to discharge dish 9.Distance between the thin slice bundle that distance L was alternately put in order.

Also developed a kind of thin slice collating unit, in this thin slice collating unit, discharged thin slice be used to the to align alignment member alignment of thin slice, simultaneously, thin slice by along and thin slice discharge the direction that direction intersects and be shifted, and be discharged from.

Yet,,, therefore can not be discharged from for the thin slice that send from a plurality of transport paths owing to only there is one to give the transport path that send thin slice according to traditional thin slice collating unit.Therefore, traditional thin slice collating unit has and can not handle the problem of giving the thin slice that send from a plurality of positions.

At the thin slice collating unit of putting thin slice by the alignment member of the thin slice that is used for aliging in order since alignment member along and thin slice discharge the direction that direction intersects and move, so need the time.

In addition, exist the thin slice that send given along situation about being transferred under the state of the Width chosen position of thin slice.Yet, because the position of alignment member can not be according to carrying the selected drain position of thin slice keep out of the way, so alignment member is in can the align position standby of thin slice of optional position of alignment member.As a result, exist waste motion and alignment to need the time in the alignment member.

Summary of the invention

The object of the present invention is to provide a kind of sheet handling device, in this sheet handling device, give a plurality of transport paths that send thin slice, also can handle thin slice with the short processing time even exist.

According to the present invention, a kind of image processing system with sheet handling device is provided, in this sheet handling device, give a plurality of transport paths that send thin slice even exist, also can handle thin slice, thereby can make different thin slices obtain handling with the short processing time.

According to the present invention, a kind of sheet handling device is provided, it comprises: a plurality of transport paths, it is used to carry thin slice; And align unit, it is used for along the Width that the thin slice throughput direction with the thin slice of carrying from a plurality of transport paths the intersects thin slice that aligns, wherein, align unit has a pair of alignment member, this position of readiness in the outside of side that alignment member is disposed in the Width of thin slice from alignment member contacts and the thin slice that aligns with this side, and changes position of readiness according to each drain position information relevant with a plurality of transport paths.

According to sheet handling device of the present invention, to each thin slice, when the position of readiness of alignment member when the position of readiness in the side outside of the Width that is arranged in thin slice contacts with the side of thin slice and align thin slice based on the drain position information of thin slice and different.Therefore, sheet handling device of the present invention can be handled a plurality of transport paths.Because the displacement from position of readiness to aligned position is that essential minor increment is just enough at the drain position place, so the thin slice that can in the short time, align.

According to sheet handling device of the present invention, even at the thin slice by moving-member with pass through in any thin slice in the thin slice of moving-member, the width of thin slice all can accurately be aligned to desirable position.

From following explanation to exemplary embodiment (with reference to accompanying drawing), it is obvious that further feature of the present invention will become.

Description of drawings

Fig. 1 is as the duplicating machine of the image processing system in the embodiment of the invention cut-open view along the intercepting of thin slice throughput direction.

Fig. 2 is the cut-open view that the sheet handling device in the embodiment of the invention intercepts along the thin slice throughput direction.

Fig. 3 is the block diagram that is used to control image processing system.

Fig. 4 is the block diagram of the automatic collating unit controller of control automatic collating unit (finisher).

Fig. 5 A is used to illustrate at first thin slice by the figure to the buffer operation under the situation of the sheet handling device of delivering to Fig. 2; Fig. 5 B is used to illustrate at second thin slice by the figure to the buffer operation under the situation of the sheet handling device of delivering to Fig. 2.

Fig. 6 is the figure of buffer operation that is used for the sheet handling device of key diagram 2, and first thin slice and second state that thin slice overlaps each other are shown.

Fig. 7 is at the figure when the upstream side of thin slice throughput direction is seen shift unit.

Fig. 8 is the stereographic map of shift unit.

Fig. 9 is the stereographic map with intermediate treatment dish of preceding alignment member and back alignment member.

Figure 10 is the vertical view of intermediate treatment dish.

Figure 11 is used to illustrate in order to align by the thin slice of shift unit, and preceding alignment member and back alignment member are positioned at the figure of the operation under the situation of position of readiness.

Figure 12 is the figure under preceding alignment member and back alignment member have been alignd the situation of the thin slice by shift unit.

Figure 13 is used for explanation for offset in alignment, and preceding alignment member and back alignment member are positioned at the figure of the operation under the situation of position of readiness.

Figure 14 is for offset in alignment, the figure when back alignment member has been moved.

Figure 15 A is the front view of conventional thin piece treating apparatus; Figure 15 B is the right view of conventional thin piece treating apparatus.

Embodiment

Can use the sheet handling device in the embodiments of the invention and have the image processing system of this sheet handling device hereinafter with reference to description of drawings.The numerical value of mentioning among the embodiment only is referential data and the invention is not restricted to this.

<image processing system 〉

Fig. 1 is the cut-open view along the intercepting of thin slice throughput direction as the monochrome/color photocopying device (being designated hereinafter simply as " copy device ") 300 of the image processing system in the embodiment of the invention.As image processing system, copy device, printer, facsimile recorder and multi-function device thereof are arranged.The invention is not restricted to copy device.

Copy device 300 has: the apparatus main body 300A that is made of cis 501 and printer unit 502; Be used for giving auto document feeder (automatic document feeder, ADF) 500 of delivering to cis 501 top positions with original copy; With automatic collating unit 100 as sheet handling device.Automatic collating unit 100 is connected to the apparatus main body 300A of copy device and has: saddle stitching treating apparatus 135; And stapler (flat stitching treating apparatus) 132.Therefore, but the thin slice that in-line processing is discharged from the apparatus main body 300A of copy device.There is the situation of automatic collating unit 100 as option.Therefore, the apparatus main body 300A of copy device also can use separately.Automatic collating unit 100 and apparatus main body 300A also can form as one.

Among the box 909a to 909d from apparatus main body 300A each is given and to be sent thin slice, is transferred on the thin slice by the image forming part that is made of yellow, magenta, cyan and black photosensitive drum 914a to 914d and developing cell etc. the toner image with four kinds of colors.Thin slice is transported to fixation unit 904, and toner image is by photographic fixing, and resulting thin slice is discharged to the outside of apparatus main body 300A.According to the copy device 300 of present embodiment, make along and the center of the sheet width of the thin slice throughput direction direction of intersecting and the center of transport path to overlap, thin slice is transferred, and image is formed on the thin slice that is under the so-called center reference state.

The diagrammatic illustration of<sheet handling device 〉

Fig. 2 is the cut-open view along the intercepting of thin slice throughput direction as the automatic collating unit 100 of the sheet handling device in the embodiment of the invention.

The inlet roller that the thin slice of discharging from the apparatus main body 300A of copy device 300 is sent to automatic collating unit 100 is to 102 and be received.At this moment, also detect the reception timing of thin slice simultaneously by inlet sensor 101.Be delivered to the inlet roller to 102 thin slice by as the transport path 103 of transport path (first transport path) time, detect the side position of thin slices by located lateral detecting sensor 104.Located lateral detecting sensor 104 detects the side-play amount (that is, whether located lateral error take place) of thin slice from the center broad ways of automatic collating unit.The direction that Width (laterally) expression and thin slice throughput direction intersect.

Located lateral detecting sensor 104 detects the located lateral error of thin slice.Subsequently, thin slice to shift roller to 105 and 106 course of conveying in owing to moved scheduled volume as the shift unit 108 of moving-member to front side or rear side, so thin slice is moved.The shifting function of shift unit 108 will be described hereinafter.

After this, thin slice is transferred roller 110, separate roller 111 and intermediate buffering roller to 115 conveyings.When thin slice was discharged on the dish 136, upper pathway conversion baffle plate 118 was moved to the position shown in the dotted line among the figure by solenoid (not shown) drive sources such as (solenoid).After the guiding of thin slice by upper pathway conversion baffle plate 118 was directed to transport path 117, thin slice was discharged to by last distributing roller 120 and coils on 136.

Be not discharged to the thin slice that the saddle stitching of dish on 136 handled or be discharged to thin slice on the lower wall 137 by the intermediate buffering roller to 115 conveyings, afterwards, guide to bundle transport path 121 by upper pathway conversion baffle plate 118 as transport path (second transport path).Saddle stitching is handled the bookbinding of expression saddle stitching and is handled.After this, thin slice is being restrainted transport path 121 on batch transportation with the bundle conveying roller to 124 to 122 by the downstream buffer roll.

Be under the situation of the thin slice that will be handled by saddle stitching at thin slice, saddle stitching path conversion baffle plate 125 is switched to the position shown in the dotted line among the figure by (not shown) drive sources such as solenoids, thereby the guiding thin slice is to saddle stitching path 133.After this, thin slice is guided to saddle stitching unit 135 by saddle stitching inlet roller to 134.At last, thin slice is carried out the saddle stitching processing by saddle stitching unit 135.Because it is common process rather than major part of the present invention that saddle stitching is handled, so omit its detailed description.

Under the situation that the thin slice of batch transportation is bound by stapler 132 on the bundle transport path 121, saddle stitching path conversion baffle plate 125 is switched to the position shown in the solid line among the figure by (not shown) drive sources such as solenoids, thereby the guiding thin slice is to path 126 down.After this, distributing roller is discharged on the intermediate treatment dish 138 128 under the thin slice quilt.Alignd by return facilitieses (return apparatus) such as oar (paddle) 131, annular knurl bands 129 on intermediate treatment dish 138 in the rear end of the discharge thin slice of predetermined number.Afterwards, when the thin slice of predetermined number was stacked on the intermediate treatment dish 138 and becomes the thin slice bundle, the thin slice bundle was bound by stapler 132.Stapled thin slice bundle is restrainted distributing roller and is discharged on the lower wall 137 130.If the thin slice Shu Wei that the rear end has been aligned is bound, then the thin slice bundle is restrainted distributing roller 130 former states is discharged on the lower wall 137.

Fig. 3 is the block diagram that is used to control image processing system.Cpu circuit unit 30 has CPU 29, and according to being stored in the program among the ROM 31 and the setting of operating unit 10, control original copy feeder controller (ADF controller) 32, cis controller 33, picture signal controller 34, printer controller 35, automatic collating unit controller 36 and external interface (I/F) 37.ADF controller 32 control ADF 500.Cis controller 33 control ciss 501.Printer controller 35 control printer units 502.Automatic collating unit controller 36 control automatic collating units 100.

RAM 38 is used as the perform region of regional and relevant with the control arithmetical operation of interim storage control data.Exterior I/F 37 is the interfaces with computing machine (PC) 20.Exterior I/F 37 is launched into the print data that is received image and exports image to picture signal controller 34.The image of being read by cis 501 is exported to picture signal controller 34 from cis controller 33.The image that exports printer controller 35 from picture signal controller 34 to is input to exposure control unit.

Fig. 4 is the block diagram that is used to control the automatic collating unit controller 36 of automatic collating unit.Control circuit is by formations such as microcomputer (CPU) 701, RAM 702, ROM 703, I/O unit (I/O unit) 705, communication interface (I/F) 706, network interfaces (I/F) 704.

The signal of various sensors is input to the input port of I/O unit 705.The output port that controll block (not shown) that connects by various driver (not shown) and drive system are connected respectively to I/O unit 705.

The explanation of<buffered operation 〉

Needing the predetermined running time to carry out saddle stitching handles and binds and handle.Though the running time is depended on the image of copy device and forms speed, should the running time be sent the time interval of thin slice long continuously than the apparatus main body 300A from copy device usually.Therefore, make automatic collating unit 100 carry out thin slices for the operation of the apparatus main body 300A that need not stop copy device and handle, be used for that interim to keep giving the processing (buffered) of the thin slice that send continuously from apparatus main body 300A be essential.By when the thin slice Shu Zhihang thin slice of front is handled, the thin slice from the predetermined number of thin slice foremost of subsequent sheet bundle is carried out buffered, guarantee the thin slice processing time of the thin slice bundle of front.Therefore, needn't stop the operation of the apparatus main body 300A of copy device.

Below buffered will be described.

Shown in Fig. 5 A, the thin slice S1 that is carried by conveying roller 110 and separate roller 111 is guided to bundle transport path 121 by the intermediate buffering roller to 115.Be cushioned after sensor 116 detects at the front end of thin slice S1, when the rear end of thin slice arrived some A based on the lamina dimensions information of before having confirmed, the intermediate buffering roller is driven the source (not shown) to 115 to be stopped.Therefore, thin slice S1 stops.

Afterwards, buffer path conversion baffle plate 114 is tilted to the position shown in the dotted line among the figure by (not shown) drive sources such as solenoids, and the intermediate buffering roller is inverted 115.Therefore, thin slice is reversed and carries and rear end (right-hand member among Fig. 5 A and Fig. 5 B) is directed to buffer path 113.Afterwards, thin slice S1 is reversed conveying till front end (left end among Fig. 5 A and Fig. 5 B) point of arrival B (referring to Fig. 5 B).

Subsequently, after the front end of subsequent delivery thin slice S2 is detected by upstream buffer sensor 109, the upstream buffer roll begins to drive to 112, makes to have reached under the state of transporting velocity at the thin slice S1 that stops that the front end of subsequent sheet S2 is come the position identical with the front position of thin slice S1.Therefore, the front end of thin slice S1 and S2 alignment (referring to Fig. 6).

Under the situation of overlapping another thin slice, the intermediate buffering roller is to 115 rear end (right-hand member among Fig. 5 A and Fig. 5 B) point of arrival A that are inverted until thin slice S1 and S2.Afterwards, by repeating above-mentioned processing, can further cover a thin slice.

Thin slice at predetermined number is capped with after becoming the thin slice bundle, and the downstream buffer roll is delivered to saddle stitching unit 135 or stapler 132 to 124 with the thin slice bundle with the bundle conveying roller to 122.

The explanation of<shift unit 〉

The structure and the operation of shift unit 108 are described now with reference to Fig. 7 and Fig. 8.

Fig. 7 is as the figure when the upstream side of thin slice throughput direction is seen shift unit 108.Fig. 8 is the stereographic map of shift unit 108.The side that displacement conveying motor 208 is set of supposing shift unit 108 is the front side of automatic collating unit.

Displacement carries motor 208 by rotating band 209 shift roller to be rotated to 105, and then by rotating band 213 shift roller is rotated to 106.Being shifted roller from the thin slice P apparatus main body 300A of copy device, that carry on as the transport path 103 of transport path carries along the direction shown in the arrow C 105 and 106.

At this moment, owing to being driven the source (not shown), located lateral detecting sensor 104 moves, so can detect the position (located lateral error X) of thin slice P along direction shown in the arrow E.When setting mission mode, need in course of conveying, add that the resulting thin slice shift amount of located lateral error X Z (Z=X+ α) comes mobile thin slice by the shift amount α with thin slice for the displacement finishing mode.The displacement finishing mode is the pattern that is used at stacked position place broad ways displacement thin slice bundle of discharging thin slice and arrangement thin slice bundle.Carry out following this shift movement: thin slice P is sandwiched in shift roller between 105 and 106, and shift unit 108 by displacement motor 210 from the center conveyor of sheet width direction along forwards to the/mobile shift roller of backward directions (between arrow D) to 105 and 106.By this shift movement, thin slice is by when throughput direction C carries, along sheet width direction displacement scheduled volume.If what set is the non-finishing mode that does not carry out shift movement, then be transferred under the state of thin slice when the apparatus main body 300A that is discharged to copy device 300 outside and under (center reference) state that the center of thin slice broad ways is overlapped with center conveyor.Drain position information is about the information according to the selected transport path of the setting of mission mode, shift position etc.Change the position of readiness of back according to drain position information with the alignment member of explanation.

The explanation of<insertion sheet feeding device 〉

To illustrate now and insert sheet feeding device 150.Insert sheet feeding device 150 and be used for inserting that thin slice directly is inserted into intermediate treatment dish 138 and not carries out image form the device of operation.Insert sheet feeding device 150 and be and be used for front cover, insert thin slices such as thin slice, the back side/surface sheet and be inserted into image to form thin slice intrafascicular, can make this thin slice and thin slice Shu Yiqi thus by the device of saddle stitching or flat stitching.Carry under the so-called center reference state that insertion sheet feeding device 150 among the embodiment overlaps with center conveyor at the center that makes the thin slice broad ways and insert thin slice.

In Fig. 2, be arranged on each and insert to sending the picked roller 142 of insertion thin slice and 143 on the dish 140 and 141 to give the insertion path of delivering to as transport path 144Give the insertion thin slice that send by inserting path 144 and in buffer path 113, meeting.The width center of the insertion thin slice after meeting overlaps with the center conveyor of buffer path 113.If insert thin slice and be for example front cover, then it is sent, and makes that this thin slice is inserted into the timing of buffer path 113 to be overlapped with timing foremost corresponding to the thin slice bundle.At this moment, the apparatus main body 300A delayed image of copy device forms regularly and inserts the meet operation of thin slice to buffer path with inserting the corresponding time of thin slice until finishing, and carries thin slice when keeping wafer spacing.If insert thin slice is to insert thin slice or the back side/surface sheet, and then the apparatus main body 300A of copy device also carries thin slice similarly in the wafer spacing that keeps the insertion thin slice.As a result, provide the insertion thin slice with the timing that is complementary with wafer spacing.All these are regularly monitored by the response signal that is arranged on the sensor in the transport path and control.Expression is used as drain position information in response to inserting the signal of order from the selection of the transport path of insertion sheet feeding device 150 outputs, and based on the position of readiness of this drain position information Control back with the alignment member of explanation.

The explanation of the alignment the in<intermediate treatment dish 〉

Now with reference to Fig. 9 to Figure 14 alignment is described.Suppose that the front sensor S340 side among Fig. 9 to Figure 14 is the front side of automatic collating unit 100.This is not to use the front side of the image device main body 300A of person when the operating unit of apparatus main body 300A is stood yet.

Be arranged to thin slice is clipped in the middle, has around intermediate treatment dish 138 respectively, is used for alignment member 340a and back alignment member 341a before broad ways (figure Y direction) alignment left-hand end and right-hand end one group as the preceding alignment unit 340 of align unit and back alignment unit 341.

The two side ends of lip-deep thin slice P that is arranged in intermediate treatment dish 138 as the preceding alignment member 340a of alignment member and back alignment member 341a independently is to face one another.Before alignment member 340a and back alignment member 341a have aligned surfaces 340aa and 341aa respectively, this aligned surfaces depress and the side of the thin slice that aligns and with the Surface Vertical of intermediate treatment dish 138.

Preceding alignment unit 340 and back alignment unit 341 have the front wheel driving motor M340 and the rear drive motor M341 of the driver element of the drive of being configured for respectively.Before alignment member 340a and back alignment member 341a in the past driving motor M340 and rear drive motor M341 preceding head sheave by preamble band B340 and back synchronously band B341 move to intermediate treatment dish 138 independently along the Width of thin slice.

That is to say that the aligned surfaces 341aa of the aligned surfaces 340aa of preceding alignment member 340a and back alignment member 341a is arranged on the process disk 138 to face one another.Each travel mechanism is assembled into the lower face side of process disk 138, makes that preceding alignment member 340a and back alignment member 341a can be along alignment direction forwards and oppositely mobile.

Preceding alignment member 340a and back alignment member 341a are provided for detecting the front sensor S340 and back sensor S341 of preceding alignment member 340a and the initial position (home position) of back alignment member 341a respectively.When front sensor S340 and back sensor S341 inoperation, preceding alignment member 340a and back alignment member 341a are respectively in the original position place standby at the both ends that are set in process disk 138.Based on being sent to the relevant drain position information of mission mode of automatic collating unit controller 36 with cpu circuit unit 30, the position of readiness of alignment member 340a and back alignment member 341a before the control from apparatus main body 300A side.Although in an embodiment, the control of the position of readiness of preceding alignment member 340a and back alignment member 341a is undertaken by automatic collating unit controller 36, but also can be wholely set automatic collating unit controller 36 and directly carry out this control from apparatus main body 300A side for cpu circuit unit 30.

The operation of the alignment member in the thin slice discharge task will be described now.

At first, will illustrate under the situation of no thin slice on the intermediate treatment dish 138, that is, and when first thin slice P1 of task is discharged to intermediate treatment dish 138, by the alignment operation of preceding alignment unit 340 and back alignment unit 341 execution.

As shown in figure 11, be the displacement finishing mode if set mission mode, then before thin slice was discharged 128 from following distributing roller, preceding alignment member 340a and the back alignment member 341a in the initial position standby was moved to the shift position of discharging thin slice.If do not have thin slice on intermediate treatment dish 138, usually, first thin slice is shifted in to the front side.Yet if previous discharge task is finished by the front side displacement, thin slice is shifted in to the rear side shift position.When not setting the displacement finishing mode, preceding alignment member 340a and back alignment member 341a with intermediate treatment dish 138 on the position standby that is complementary of center conveyor.Thus, preceding alignment member 340a and back alignment member 341a wait for till thin slice is discharged from according to the shift position.

At this moment, preceding alignment member 340a and back alignment member 341a have moved to position of readiness F340 and F341, and they have kept out of the way the outside (about in the present embodiment 10mm) to thin slice P1 width slightly in this position.As Figure 11 and shown in Figure 12, thin slice is shifted unit 108 displacements and the width center of thin slice and the center conveyor in following path 126 and does not overlap.Under this state, the rear end that is discharged to the thin slice P1 on the intermediate treatment dish 138 by distributing roller down to 128 roll gap and rotate counterclockwise collision rear end block 139 by oar 131.

As shown in figure 12, after the collision end of thin slice P1 and thin slice stop to move, be moved to thin slice aligned position A340 and the A341 of sheet width in the middle of being sandwiched at the preceding alignment member 340a of position of readiness F340 and the standby of F341 place and back alignment member 341a.Since the motion of preceding alignment member 340a and back alignment member 341a, the side of aligned surfaces 340aa and 341aa collision thin slice.In the aligned position of thin slice, in the middle of the two side ends of thin slice is sandwiched in, thereby make the Width alignment.The alignment of sheet width direction is represented along the processing of at least one side of thin slice throughput direction alignment thin slice.The side of thin slice also is the edge that intersects with the thin slice throughput direction.

Preceding alignment member 340a and back alignment member 341a are clipped in the middle thin slice P1 a little while at thin slice aligned position A340 and A341.Then, as shown in figure 11, be the thin slice P1 for preparing to discharge subsequently, preceding alignment member 340a and back alignment member 341a turn back to position of readiness F340 and F341 again, and they are kept out of the way slightly to the outside of thin slice P1 width in this position.

At this moment, the thin slice P1 that before had been discharged from (first thin slice) stays the thin slice aligned position, and alignment member 340a is moved with back alignment member 341a only.Repeat these a series of operations till last intrafascicular thin slice of the thin slice of same task is carried 128 from following distributing roller and is discharged on the intermediate treatment dish 138.

If setting mission mode is the flat stitching pattern, then after last intrafascicular thin slice of thin slice was discharged on the intermediate treatment dish 138, stapler 132 was bound the thin slice bundles.The bundle distributing roller is expelled to the thin slice bundle on the discharge dish 137 130.If set mission mode is that non-bookbinding (non-stitch) displacement arrangement is handled, and then in the end a thin slice is by after preceding alignment member 340a and the back alignment member 341a alignment, and the thin slice bundle is restrainted distributing roller and once all is discharged on the discharge dish 137 130.

If setting mission mode herein is activated for exporting many parts of (two parts or more parts) printouts or next output task, then before the intrafascicular thin slice foremost of next thin slice was discharged 128 from following distributing roller, preceding alignment member 340a and back alignment member 341a were moved to the shift position of discharging thin slice.The shift position is the shift position at the opposition side of finishing the work with respect to the center conveyor in following path 126 and first printout or last discharge in this case.Thus, preceding alignment member 340a and back alignment member 341a enter thin slice and discharge standby mode.

Like this, in automatic collating unit 100, the thin slice bundle is shifted and alternately departs under the state of (skew) in every thin slice bundle or every different task and is stacked on the discharge dish.Therefore, taking-up performance and arrangement performance have been improved.Side-play amount in the present embodiment equals about 30mm of the center conveyor distribution in path 126 down.

If set non-finishing mode, then thin slice is discharged on the intermediate treatment dish 138 under the width center of thin slice and (center reference) state that the center conveyor in following path 126 overlaps.Afterwards, thin slice is alignd by preceding alignment member 340a and back alignment member 341a under the width center of thin slice and state that the center conveyor in following path 126 overlaps.At this moment, preceding alignment member 340a and back alignment member 341a are in the standby of position of readiness place, and they keep out of the way the outside to sheet width slightly in this position.Before the position of readiness of alignment member 340a and back alignment member 341a be positioned at the position of leaving down the almost equal distance of center conveyor in path 126 towards front side and rear side.

Like this, the position of readiness of preceding alignment member 340a and back alignment member 341a can change according to the shift position of each thin slice of discharging from sheet handling device, can set a plurality of shift positions by shift unit 108 in this sheet handling device.Preceding alignment member 340a and back alignment member 341a keep out of the way to the outside of thin slice P1 width slightly at its place, shift position.Therefore, the displacement from position of readiness to the thin slice aligned position is that essential minor increment is just enough.Even the shift position is changed, preceding alignment member 340a and back alignment member 341a and not collision mutually of the thin slice that is discharged from, and also reduced the required time of thin slice alignment.

To illustrate now inserting thin slice to be discharged to operation under the situation on the intermediate treatment dish 138 that this insertions thin slice is given the position of delivering between the thin slice of the apparatus main body 300A transmission of copy device from inserting sheet feeding device 150.At first, suppose to be made of following at the thin slice bundle that forms on the intermediate treatment dish 138: the front cover as the thin slice bundle is stacked on the insertion of insertion sheet feeding device 150 to the insertion thin slice that send on the dish 140; With as by the apparatus main body 300A transfer printing of copy device the thin slice of another intermediate sheet of toner image.

As shown in figure 13, giving the insertion thin slice P2 that send by from before distributing roller is discharged 128 down, be moved to the drain position that inserts thin slice at the preceding alignment member 340a and the back alignment member 341a of initial position standby from inserting sheet feeding device 150.Before alignment member 340a and back alignment member 341a enter the state that is inserted into the thin slice discharge that waits based on the detection signal that inserts thin slice detecting sensor 145 (with reference to Fig. 2).For inserting path 144 insertion thin slice detecting sensor 145 is set.

Position of readiness when inserting thin slice and discharging is different from aforementioned position of readiness F340 and the F341 when the thin slice from the apparatus main body 300A discharge of copy device is aligned.That is to say that the thin slice of discharging from apparatus main body 300A is shifted unit 108 broad ways displacement, makes that the width center of thin slice does not overlap with the center conveyor in following path 126 as Figure 11 and shown in Figure 12.Yet, in supplying step, be discharged on the intermediate treatment dish 138 for the insertion thin slice P2 that send and by shift unit 108 from inserting sheet feeding device 150.Therefore, as shown in figure 13, the width center of inserting thin slice overlaps with the center conveyor in following path 126.That is to say, insert thin slice and be discharged on the intermediate treatment dish 138 under the state of center (center reference).Therefore, for inserting thin slice, the position of readiness of preceding alignment member 340a and back alignment member 341a is different from from the position of readiness F340 and the F341 of the thin slice of apparatus main body 300A discharge.

As mentioned above, preceding alignment member 340a and back alignment member 341a are in position of readiness G340 and the standby of G341 place, and they have been kept out of the way slightly to the outside of the width that inserts thin slice P2 in this position.

Under the situation of present embodiment, comprise that the position that the thin slice Shu Zaiqi that inserts thin slice finally is shifted in to front side (preceding alignment unit 340 sides) is aligned.Therefore, the position of readiness G340 of preceding alignment member 340a is configured to second and the identical position of position of readiness F340 of subsequent sheet below carrying from copy device.Yet, be different from position of readiness F341 as the position of readiness G341 of second position of readiness of back alignment member 341a, and position of readiness G341 has kept out of the way position to the outside slightly with respect to the insertion thin slice P2 that is discharged from as first position of readiness.

Under this state, insert thin slice P2 by distributing roller down to 128 nip location and rear end rotating counterclockwise and 139 collisions of rear end block by oar 131.Device wait for up to finish the collision of inserting thin slice P2 and insert thin slice stop to move till.Only be moved to the position of readiness F341 of the thin slice P1 that carries from the apparatus main body 300A of next copy device at the back alignment member 341a of opposite side displacement.Therefore, insert thin slice P2 and moved (pre-moving) in advance.Afterwards, preceding alignment member 340a and the back alignment member 341a in position of readiness F340 and the standby of F341 place waits for till the thin slice P1 that the apparatus main body 300A from copy device carries is discharged 128 from following distributing roller (Figure 14).

To 128 nip location, the rear end rotates counterclockwise and 139 collisions of rear end block by oar 131 the thin slice P1 that carries from the apparatus main body 300A of copy device by distributing roller down.Device is waited for till the collision of finishing thin slice P1 and thin slice stop to move.Be moved to thin slice aligned position A340 and the A341 of sheet width in the middle of being sandwiched in to the preceding alignment unit 340 of the position of readiness F340 in the sheet width outside and the standby of F341 place and back alignment unit 341 keeping out of the way slightly in advance.

By the motion of preceding alignment member 340a and back alignment member 341a, aligned surfaces 340aa and 341aa and thin slice P1 and the side collision of inserting thin slice P2, and the two side ends of thin slice is in the middle of the aligned position of thin slice is sandwiched in, thus align.Preceding alignment member 340a and back alignment member 341a are clipped in the middle thin slice P1 a little while at thin slice aligned position A340 and A341 place.Then, as shown in figure 11, be the thin slice P1 for preparing to discharge subsequently, preceding alignment member 340a and back alignment member 341a turn back to position of readiness F340 and F341 once more, and they are kept out of the way slightly to the outside of thin slice P1 width in this position.

Carry out the alignment operation of thin slice P1 in the mode similar to the alignment operation of the thin slice of carrying from the apparatus main body 300A of copy device.Repeat these a series of operations till last intrafascicular thin slice of the thin slice of same task is discharged 128 from following distributing roller and is discharged on the intermediate treatment dish 138.

If setting mission mode is the flat stitching pattern, then after last intrafascicular thin slice of thin slice was discharged on the intermediate treatment dish 138, stapler 132 was bound the thin slice bundles.The bundle distributing roller is discharged the thin slice bundle to lower wall 137 to 130.If set mission mode is that non-bookbinding displacement arrangement is handled, and then in the end a thin slice is by after preceding alignment member 340a and the back alignment member 341a alignment, and the thin slice bundle is restrainted distributing roller and once all is discharged on the discharge dish 137 130.

If set mission mode herein for the setting of many parts of printouts of output or if export the continuous duty of next task subsequently, then when making the shift position alternately deviate to the position, front and back in the mode that is similar to aforementioned operation, the thin slice bundle is stacked on the discharge dish 136.

In the above description, the time point when setting mission mode, preceding alignment member 340a and back alignment member 341a change position of readiness.That is to say that automatic collating unit 100 changes position of readiness in advance according to drain position information such as having or not of the appointment about transport path relevant with setting mission mode, displacement.Trigger pip as position of readiness changes also can change position of readiness according to the thin slice detecting operation that inserts thin slice detecting sensor 145.In other words, usually, according to from apparatus main body 300A alignment member 340a and back position of readiness of alignment member 341a before the thin slice that transport path 103 is carried is set.Only make when inserting 145 work of thin slice detecting sensor, it is position of readiness according to inserting thin slice that position of readiness just is changed.

In the above description, as the path that thin slice is delivered to intermediate treatment dish 138, there is transport path 103 and inserts the 144 liang of paths in path.Yet, three or mulitpath more also can be set.If the N paths is arranged, number then can be set from 1 shift unit 108 to (N-1) scope.

As mentioned above, present embodiment has been described for the example that send from inserting sheet feeding device 150 about inserting thin slice.Yet, even under the situation of the thin slice by shift unit 108, with respect to the thin slice of displacement not, also carry out with from the identical alignment operation of alignment operation under the situation of insertion sheet feeding device 150.Although the present invention has been described, also can be the transport path that inserts sheet feeding device 150 shift unit is set about the structure that only shift unit is set for the transport path of apparatus main body 300A.

Position of readiness at preceding alignment member 340a and back alignment member 341a is set under the situation of the further position of improving and can be moved of degree of freedom, even between copy device, connect a plurality of different sheet handling devices, transport path is elongated, and tiltedly moving or tiltedly sending of thin slice takes place, and thin slice also can fully align.

In addition, according to sheet handling device of the present invention, even thin slice is the thin slice by shift unit 108 and by in the thin slice of shift unit 108 any one, all can by alignment member 340a before changing and after the position of readiness of alignment member 341a align.

If the position of readiness of alignment member 340a and back alignment member 341a can not change before supposing, inconvenience below then will occurring for fear of the collision between discharge thin slice and preceding alignment member 340a and the back alignment member 341a.That is to say, must be reversed from the point GP that inserts path 144 and transport path 103 from the insertion thin slice that inserts the sheet feeding unit feeding and be delivered to shift unit 108, and must be shifted adjustment in the mode that is similar to the thin slice by shift unit 108.Subsequently, throughput direction is changed once more, and thin slice is transported to intermediate treatment dish 138.Be diverted (switch-back) conveying owing to insert thin slice, the treatment effeciency deterioration of complexity and thin slice so the conveying of thin slice control becomes.In addition, be diverted conveying, in Fig. 2, insert path 144 and the point GP of transport path 103 and the extreme length that the spacing between the shift unit 108 must be set to insert thin slice owing to insert thin slice.For example, maximum thin slice delivered length equals and the corresponding 420mm of the sheet length of A3 size.Therefore, the size of automatic collating unit 100 increases.Send the method for inserting thin slice to avoid such problem although also considered to give, can insert another problem that the desired location of sheet feeding device is restricted from the upstream side of shift unit 108.

Yet, according to sheet handling device of the present invention,, therefore need not the insertion thin slice oppositely is delivered to shift unit, and the desired location of insertion sheet feeding device is also unrestricted because the position of readiness of preceding alignment member 340a and back alignment member 341a can change.

That is to say,, shift unit 108 is set in transport path 103,, also do not make the process for producing rate deterioration of thin slice even meet with the downstream of shift unit from the insertion path 144 of inserting sheet feeding device 150 according to sheet handling device of the present invention.Also can improve alignment accuracy.

As mentioned above, according to sheet handling device of the present invention,, also can carry out stable alignment even connect various option means.About to from the thin slice of the transport path of the shift unit with shift function with from the thin slice of the transport path that does not contain shift unit, the structure of the position of readiness of alignment member 340a and back alignment member 341a has illustrated present embodiment before changing.Yet, the invention is not restricted to this structure, but also be effective for example for following situation: make along and the side of the Width that intersects of the thin slice throughput direction center that is set to the image processing system of a side group standard of benchmark and the sheet width option means that is set to the center reference of benchmark link to each other.

In addition, according to sheet handling device of the present invention, because the position of readiness of preceding alignment member 340a and back alignment member 341a can change, even be that thin slice also can be shifted with being stabilized under the situation of for example thick anti tear paper etc. or flex foils transport path therefore at thin slice.In addition, in the apparatus main body of copy device or the located lateral of the thin slice that in its downstream units, takes place depart from and be shifted under the state of proofreading and correct unit 108, can carry out shifting function.Therefore, thin slice can easily be stacked into the state that has been aligned that enters on intermediate treatment dish 138, and can improve alignment accuracy.

Though with reference to exemplary embodiment the present invention has been described, has been understandable that to the invention is not restricted to disclosed exemplary embodiment.The scope of claims is to show with the wideest explanation one to cover all this changes, equivalent construction and function.

Claims (10)

1. sheet handling device, it comprises:
A plurality of transport paths, it is used to carry thin slice; With
Align unit, it is used for along the Width that the thin slice throughput direction with the thin slice of carrying from described a plurality of transport paths the intersects described thin slice that aligns,
Wherein, described align unit has a pair of alignment member, and this position of readiness in the outside of side that alignment member is disposed in the Width of described thin slice from described alignment member contacts with described side and the described thin slice that aligns, and
Change described position of readiness according to each drain position information relevant with described a plurality of transport paths.
2. sheet handling device according to claim 1 is characterized in that, the described drain position information of described thin slice is to be transported to the information of described align unit about thin slice which from described a plurality of transport paths, and
To each thin slice, described position of readiness is according to selected path in described a plurality of transport paths and difference.
3. sheet handling device according to claim 1 is characterized in that, in described a plurality of transport paths at least one is provided for moving along the Width of thin slice the moving-member of the thin slice of carrying on described transport path.
4. sheet handling device according to claim 3 is characterized in that, the described drain position information of described thin slice is about the information by the flap position of the broad ways that described moving-member moved, and
To each thin slice, described position of readiness is according to by flap position that described moving-member moved and difference.
5. sheet handling device according to claim 1 is characterized in that, described align unit has and is used for independent each the driver element that moves described a pair of alignment member.
6. sheet handling device according to claim 3 is characterized in that, described align unit has independent each the driver element that moves in the described a pair of alignment member, and
In described a pair of alignment member, can change and move the position of readiness of described alignment member of the direction opposition side of described thin slice with described moving-member.
7. sheet handling device according to claim 5, it is characterized in that, to each thin slice, the position of readiness of one of them described alignment member can change between first position of readiness and second position of readiness, described first position of readiness is corresponding with the side of the described thin slice of a delivery pathways from described a plurality of transport paths, described second position of readiness is with corresponding from the side of the described thin slice of another delivery pathways and away from the side of the described thin slice of a delivery pathways from described a plurality of transport paths, and the aligned position of the thin slice of discharging at the described second position of readiness place overlaps with described first position of readiness.
8. sheet handling device according to claim 7, it is characterized in that, an alignment member is moved, make it than described first position of readiness more approaching face to another alignment member of described alignment member, thereby be aligned in thin slice of the described second position of readiness place discharging and the thin slice of discharging together at the described first position of readiness place.
9. sheet handling device according to claim 1 is characterized in that, the insertion sheet feeding device that is used for supplying with thin slice is connected at least one of described a plurality of transport paths.
10. image processing system, it comprises:
Image forming part, it is used for image is formed into thin slice; With
Sheet handling device, it is used for handling by the thin slice of a conveying of described a plurality of transport paths from described image forming part,
Wherein, described sheet handling device is as each described sheet handling device in the claim 1 to 9.
CNB2006101607939A 2005-12-01 2006-12-01 Sheet processing apparatus and image forming apparatus CN100470389C (en)

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