CN1307493C - Two-sided image forming device - Google Patents
Two-sided image forming device Download PDFInfo
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- CN1307493C CN1307493C CNB2003101006257A CN200310100625A CN1307493C CN 1307493 C CN1307493 C CN 1307493C CN B2003101006257 A CNB2003101006257 A CN B2003101006257A CN 200310100625 A CN200310100625 A CN 200310100625A CN 1307493 C CN1307493 C CN 1307493C
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Abstract
A one-side image forming apparatus of the present invention is provided with a first sheet-transferring path, for use in one-side image formation, for transferring, to a printed sheet storage section via an image transcribing section, a sheet supplied from an unprinted sheet storage section; and a second sheet-transferring path, connected to the first sheet-transferring path, for supplying a tuned-over one-side printed sheet to the image transcribing section, the two-image forming apparatus being controlled so that a plurality of sheets are transferred concurrently in an overall sheet-transferring path when performing two-side image forming operation, the overall sheet-transferring path including the first sheet-transferring path and the second sheet-transferring path. With this arrangement, it is possible to attain a significant improvement in process efficiency.
Description
Technical field
The present invention relates to a kind of dual-side image and form device, particularly relate to a kind of image of realizing and form the dual-side image formation device of handling whole high speed at the two-sided formation image of paper.
Background technology
In the prior art, as being the image processing system of purpose with the duplex printing, known for example have that the spy opened flat 11-341231 communique (open day: on Dec 10th, 1999).This dual-side image forms the shown in Figure 1 of device such as this communique, be provided with transcription drum 19, the image transcription that is used for being read by image reading unit 1a is at paper P, under with the situation of image transcription at paper surface, the paper that is transported to main carrying path (example of the first paper sheet delivery path) 6 from storage paper portion 5 is by near the transcription portion of above-mentioned transcription drum 19, thus with the image transcription on paper surface.By the imagery exploitation fixing roller 23 of transcription and by photographic fixing.Image is controlled by the twist rollers 10 that photographic fixing paper P is from the teeth outwards just being changeed, and is sent up to its rear end.
Then, by the reverse of twist rollers 10, paper enters secondary carrying path 8 (example of the second paper sheet delivery path), is sent to the conveying roller 11 that is located in the secondary carrying path 8, and then enters main carrying path 6.Utilize the upset of above-mentioned twist rollers 10, the paper that enters secondary carrying path 8 is by entering main carrying path 6 from this, thus the surface of paper and back side upset.Therefore, this moment, paper and transcription drum 19 relative faces were the back side of paper P, so can be with the back side of image transcription at the paper P that has passed through main carrying path 6.
Like this, when after the image transcription at the paper P surface and the back side is finished, paper P is discharged to discharge tray 12 by means of the just commentaries on classics of twist rollers 10.
Above-mentioned spy opens the dual-side image of putting down in writing in the flat 11-341231 communique and forms device such as above-mentioned formation, utilize the continuous conveying of paper and carry out duplex printing, so can shorten the processing time, and owing to utilized the secondary carrying path that does not take up space, so the miniaturization of energy implement device.
But, above-mentioned two and in the image processing system, because during 1 page of paper is carried out double-side printing processing, can only make 1 page of paper by above-mentioned main carrying path 6 and 8 two carrying paths of secondary carrying path, so can't realize parallel duplex printing to multipage paper, in this sense, there is the low problem of printing effect.
Therefore, when carrying out printed on both sides, print, can improve printing effect by the parallel multipage paper of carrying.The spy open 2001-171884 (open day: June 26 calendar year 2001) disclose a kind of like this image processing system, the upset in the upset path of this image processing system was carried the preceding during the paper, make after paper enter this upset path.In the method, during paper is the preceding carried in upset, make after the paper timing that enters above-mentioned upset path be after paper enters guiding device the preceding, the paper that above-mentioned guiding device is used for being reversed imports transport path once more.
But in the method, printing effect is not high, so seeking a kind ofly when carrying out printed on both sides, in comprising the complicated paper sheet delivery of paper turning, can not cause paperboard, carry multipage paper more efficiently and the dual-side image that prints forms device.
Summary of the invention
The object of the present invention is to provide a kind of have main carrying path and secondary carrying path, the dual-side image that can improve treatment effeciency significantly forms device.
To achieve these goals, dual-side image of the present invention forms device and is provided with: one-sided image forms the first paper sheet delivery path of usefulness, makes paper that handling of paper reservoir never sends via image transcription portion, gives Flame Image Process then and finishes the paper reservoir; The second paper sheet delivery path is connected with the above-mentioned first paper sheet delivery path, makes paper surface and the back side upset of having finished Flame Image Process at single face, gives above-mentioned image transcription portion then; Intermediate calender rolls along the above-mentioned second paper sheet delivery channel setting; And registration roller, be used to make paper sheet delivery synchronous to the timing on the above-mentioned first paper sheet delivery path.Above-mentioned first paper sheet delivery path and the above-mentioned second paper sheet delivery path are configured to, when carrying out dual-side image formation action, multipage paper can be advanced in the whole paper sheet delivery path that is made of above-mentioned first paper sheet delivery path and the above-mentioned second paper sheet delivery path simultaneously.The rotation of above-mentioned intermediate calender rolls and above-mentioned registration roller restart rotation synchronously.
Thus, being routed to the second paper sheet delivery path from first paper sheet delivery has multipage paper to pass through simultaneously, compares with handling one page paper in the prior art simultaneously, has improved treatment effeciency significantly.
By the following stated, will fully understand other purposes of the present invention, feature and advantage.In addition, by the following explanation of reference accompanying drawing, advantage of the present invention will become according to understanding.
Description of drawings
Fig. 1 is mainly used in the concise and to the point cut-open view that the dual-side image that describes one embodiment of the present invention in detail forms the image forming part structure of device.
Fig. 2 is the concise and to the point cut-open view identical with Fig. 1 that is used to illustrate processing sequence.
Fig. 3 is the concise and to the point cut-open view identical with Fig. 1 that is used to illustrate processing sequence.
Fig. 4 is the concise and to the point cut-open view identical with Fig. 1 that is used to illustrate processing sequence.
Fig. 5 is the concise and to the point cut-open view identical with Fig. 1 that is used to illustrate processing sequence.
Fig. 6 is the controlling party block diagram that this dual-side image forms device.
Fig. 7 is the chart that this dual-side image of statement forms the each several part action of device.
Embodiment
Below utilize accompanying drawing, first embodiment of the present invention is described.Fig. 1～Fig. 5 is mainly used in the dual-side image that describes one embodiment of the present invention in detail to form the concise and to the point cut-open view of image forming part structure of device and the figure of expression processing sequence, Fig. 6 is the controlling party block diagram that this dual-side image forms device, and Fig. 7 is the chart that this dual-side image of expression forms the each several part action of device.
As shown in Figure 1, the dual-side image of this embodiment formation device 1 is made of image reading unit 4 that illustrates later and image forming part 9.
Above-mentioned image reading unit 4 makes the original copy D that comes out from original copy pallet TR1 by roller 3 conveying of overturn, and constitutes at the ccd sensor that comprises reading images midway 2 of arrival original copy discharge tray TR2.
Above-mentioned image forming part 9 mainly is made of following several parts: transcription drum (image transcription means) 5 according to the image information that is read by above-mentioned ccd sensor 2, forms electrostatic latent image; Main carrying path (example of the first paper sheet delivery path) 7 via near transcription portion and the fixing roller 6 the above-mentioned transcription drum 5, will be finished paper reservoir T2 with the paper sheet delivery of the paper reservoir T1 discharge of being untreated of paper to Flame Image Process from storing transcription; The R3 of upset portion (turning device) is made of twist rollers, and this twist rollers is located at the above-mentioned Flame Image Process of above-mentioned main carrying path 7 and finishes before the paper reservoir T2; Registration roller R1 is located at before above-mentioned transcription drum 5 upstream sides of next-door neighbour on the above-mentioned main carrying path 7; Secondary carrying path (example of the second paper sheet delivery path) 8 in the above-mentioned upset R3 of portion upstream side and above-mentioned main carrying path 7 branches, converges at above-mentioned registration roller R1 upstream side and above-mentioned main carrying path 7; Difference pawl C1 is located in the difference portion of above-mentioned main carrying path 7 and secondary carrying path 8; And intermediate calender rolls R2, be located at above-mentioned secondary carrying path 8 midway.Registration roller R1 is in order to make picture position on the transcription drum 5 and the transcription position consistency on the paper, and adjusts the beginning device regularly that paper is carried to main carrying path 7.
In addition, the upstream side of the above-mentioned registration roller R1 of next-door neighbour on above-mentioned main carrying path 7 is provided with the first paper sensor S1, be provided with the second paper sensor S2 after next-door neighbour's Flame Image Process of the R3 of upset portion is finished paper reservoir T2 one side, the downstream of the above-mentioned intermediate calender rolls R2 of next-door neighbour on secondary carrying path 8 is provided with the 3rd paper sensor S3.
Certainly, in image forming part 9, be provided with the inscape that transcription drum main charger, cleaning device and other images on every side forms, but for the purpose of simplifying the description, omit its detailed description here.
Above-mentioned inscape connects as illustrated in fig. 6.Promptly, for the paper sheet delivery control of carrying out illustrating later, above-mentioned first～the 3rd paper sensor S1～S3 is connected with the input part of the control part 12 that is provided with CPU, stored program ROM and the RAM that temporarily stores data, and the drive division C2a of the drive division R3a of the drive division R1a of above-mentioned registration roller, the drive division R2a of intermediate calender rolls R2, the R3 of upset portion, the drive division C1a of difference pawl C1 and other image formative elements is connected with the efferent of this control part 12 respectively.
Following with reference to Fig. 1～Fig. 7, the processing sequence that the dual-side image that the dual-side image that is used for present embodiment is formed device 1 forms the above-mentioned control part of handling 12 describes.
At first common one-sided image is formed to handle and describe.In this case, receive the signal from ccd sensor 2, form electrostatic latent image on the side face of transcription drum 5, this electrostatic latent image utilizes ink powder to develop by development section, and the rotation by transcription drum 5 is transported to transcription portion then.Form correspondingly with this image, as putting down in writing in " single face printing " hurdle of Fig. 7, above-mentioned control part 12 makes registration roller R1 and intermediate calender rolls R2 stop (OFF), and the R3 of upset portion is just changeed.Under this state, the paper-feed roll that control part 12 drives in other image formative elements is supplied with main carrying path 7 with the paper in the paper reservoir T1 that is untreated.When paper when the first paper sensor S1, be transmitted to control part 12 from the note detection signal of the first paper sensor S1.When the note detection signal from the first paper sensor S1 was transmitted, control part 12 made registration roller R1 begin rotation after official hour.Thus, paper is by near the transcription portion the transcription drum 5, above-mentioned image by transcription on paper.
At paper when the fixing roller 6, by the image of transcription by photographic fixing.At this moment, control part 12 makes difference pawl C1 deflection, makes the streams of sheets of carrying to the R3 of upset portion, and thus, paper arrives the R3 of upset portion that continuation is just being changeed, and is transferred by means of the R3 of upset portion, finishes paper reservoir T2 thereby be discharged to Flame Image Process.When paper was discharged end, control part 12 was ended the rotation of registration roller R1 and the R3 of upset portion.
Single face print processing so far finishes.If multipage paper is arranged, then carry out said sequence repeatedly.
Below processing during to duplex printing describe.In the present embodiment, according to first page, the 3rd page, second page, the 4th page the order reading images (each original image is formed on the back side of the surface of the surface of first page of paper P1, second page of paper P2, first page of paper P1, the back side of second page of paper P2) of original copy.Such original copy reads the realization that can in all sorts of ways in proper order.For example, after first page is read, do not read second page, but make it by reading part and keep out of the way, and carry the 3rd page and read the 3rd page then, read when finishing when the 3rd page, the 3rd page of original copy kept out of the way, second page of original copy is transported to reading part, after second page is read end, carries out the 4th page read.For example, it also is an example that above-mentioned spy opens the method that flat 11-341231 communique put down in writing, but because feature of the present invention is not the read method of original copy, but the method that image forms, so omit the detailed description of document-reading method.
Under the situation of carrying out duplex printing, reception is from the signal of ccd sensor 2, on the side face of transcription drum 5, form and the corresponding electrostatic latent image of the image of first page of original copy (at the image of the face side printing of first page of paper P1), utilize ink powder that it is developed by development section then, utilize the rotation of transcription drum 5 that it is transported to transcription portion.Form correspondingly with this image, as the steps A on " duplex printing " hurdle of Fig. 7 was put down in writing, above-mentioned control part 12 made registration roller R1 and intermediate calender rolls R2 stop (OFF), makes the R3 of upset portion just change (ON).Under this state, the paper-feed roll that control part 12 drives in other image formative elements is supplied with main carrying path 7 with first page of paper P1 in the paper reservoir T1 that is untreated.When first page of paper P1 when the first paper sensor S1, be transmitted to control part 12 from the signal of the first paper sensor S1.When the note detection signal of the first paper sensor S1 was transmitted, control part 12 made registration roller begin rotation after official hour.Thus, paper P1 is by near the transcription portion the transcription drum 5, and the image transcription that makes above-mentioned first page of original copy is on the surface of paper P1.When transcription finished, control part 12 stopped registration roller R1.
At paper P1 when the fixing roller 6, by the image of transcription by photographic fixing.At this moment, control part 12 makes difference pawl C1 deflection, makes the paper P1 that is carrying flow to the R3 of upset portion, and thus, paper arrives the R3 of upset portion that continuation is just being changeed, and utilizes the R3 of upset portion to finish paper reservoir T2 to Flame Image Process and carries.The paper P1 that has passed through the R3 of upset portion is detected by paper sensor S2.
To finish the roller of the rotating on the above-mentioned main carrying path 7 before the paper reservoir T2 right but the above-mentioned upset R3 of portion is provided in a side of the above-mentioned Flame Image Process of next-door neighbour, and the R3 of this upset portion can finish Flame Image Process paper and deliver to above-mentioned secondary carrying path 8.R3 is as follows in this upset portion, can utilize a upset portion that Flame Image Process is finished paper and carry to above-mentioned secondary carrying path, and it can be sent to Flame Image Process and finish paper reservoir T2, so be favourable to the simplification of device.
Then, as step B puts down in writing, control part 12 begins through after the official hour from the note detection signal that has received from above-mentioned paper sensor S2, make the R3 of upset portion counter-rotating (thus, the throughput direction that the portion R3 of being reversed controls the paper P1 of rear end is reversed), make difference pawl C1 deflection simultaneously, feasible paper P1 from the R3 of upset portion flows to secondary carrying path 8.In addition, make the intermediate calender rolls R2 that always stops to begin rotation.Paper P1 among Fig. 1 shows the position of the paper P1 under the state that makes the R3 of upset portion counter-rotating.
Then, the paper P1 upset R3 of portion is sent, thereby enters secondary carrying path 8.When the end of working direction one side of paper P1 arrives when being positioned at intermediate calender rolls R2 in the middle of the secondary carrying path 8, that begin to rotate, controlled and conveying secondary carrying path 8 in by intermediate calender rolls R2.After paper P1 front end passed through intermediate calender rolls R2, the paper sensor S3 that is located at next-door neighbour's intermediate calender rolls R2 downstream detected passing through of paper P1.When the note detection signal that receives from paper sensor S3, control part 12 makes intermediate calender rolls R2 stop the rotation after official hour, thereby the conveying of paper P1 also stops.The paper P1 of Fig. 2 shows the paper position under this state.Thus, under the paper that enters secondary carrying path 8 state that (end of working direction one side) controlled by intermediate calender rolls R2 in its back-end, stop in the secondary carrying path 8.At this moment, the R3 of upset portion is just changeed.
Be reversed the front and back that the R3 of portion sends at above-mentioned paper P1, the image of the 3rd page of original copy (by transcription on the surface of second page of paper P2) is sent from ccd sensor 2, and develops on transcription drum 5.The paper-feed roll constantly corresponding with reading of the 3rd page of original copy, that control part 12 drives in other image formative elements is supplied with main carrying path 7 with second page of paper P2 in the paper reservoir T1 that is untreated.When paper P2 when the first paper sensor S1, be transmitted to control part 12 from the signal of the first paper sensor S1.When the note detection signal from the first paper sensor S1 is transmitted, control part 12 temporarily rotates registration roller R1, it is stopped the rotation, control at registration roller R1 under the state of paper P2 front end, paper P2 is stopped in the main carrying path 7.Fig. 2 shows this state.
Like this, form in the device at dual-side image, when carrying out dual-side image formation action, in the paper sheet delivery path that comprises above-mentioned main carrying path 7 and above-mentioned secondary carrying path 8, can there be multipage paper advancing simultaneously, forms the efficient of handling so significantly improved dual-side image.
When confirming that paper P1 and paper P2 both sides are by each intermediate calender rolls R2, when registration roller R1 controls, promptly work as sensor S3 and sensor S1 both sides and transmit the note detection signal, when making intermediate calender rolls R2 and registration roller R1 be in the state that stops, the control part 12 that has received signal makes intermediate calender rolls R2 and registration roller R1 restart rotation.Thus, second page of paper P2 be by near the transcription portion the transcription drum 5, thus the image of above-mentioned the 3rd page of original copy by transcription on the surface of second page of paper.
At second page of paper P2 when the fixing roller 6, by the image of transcription by photographic fixing.At this moment, control part 12 makes difference pawl C1 deflection, makes the streams of sheets of carrying to the R3 of upset portion.Thus, paper P2 arrives the R3 of upset portion that continuation is just being changeed, and is finished paper reservoir T2 to Flame Image Process by means of the R3 of upset portion then and carries.When second page of paper P2 crossed the R3 of upset portion and detected by paper sensor S2, control part 12 began to make the R3 of upset portion counter-rotating through after the official hour from the signal that has received from this paper sensor S2, switches difference pawl C1 simultaneously.But, switch under the situation of above-mentioned difference pawl C1 not needing, can omit this driving.
At this moment, with above-mentioned registration roller R1 restart rotation synchronously, utilize intermediate calender rolls R2 rotation, first page of paper P1 arrives registration roller R1 then by in the secondary carrying path 8, and be same with Fig. 2, utilizes sensor S1 and registration roller R1 is stopped the rotation.Carried out above-mentioned conveying and print processing paper P1, paper P2 state as shown in Figure 3.
Like this, when each paper when the state from Fig. 2 is transferred under the state of Fig. 3, must make first page of paper P1 and second page of paper P2 not overlapping.For this reason, at first, the length of maximum paper on throughput direction that can offer in the paper that this dual-side image forms device is made as L1, and is 8 that measure along above-mentioned secondary carrying path, be made as L2 from above-mentioned paper sensor S3 to the distance the above-mentioned registration roller R1, then must guarantee the relation of L1＜L2.If do not guarantee this relation, then in the action that makes above-mentioned registration roller R1 and intermediate calender rolls R2 rotation synchronously, the front part of the first page of paper P1 that transports by means of intermediate calender rolls R2 will be overlapping with the second page of paper P2 that sends from paper feed part T1.
In addition, not interfere with the front end that flows to second page of paper P2 of the R3 of upset portion by main carrying path 7 also be very important in the rear end of the first page of paper P1 that sends by the R3 of upset portion.For this reason, if will be 7 that measure, be made as L3 to the distance the above-mentioned upset R3 of portion, then must set L1＜L3 from above-mentioned registration roller R1 along above-mentioned main carrying path.
In addition, if the maximum paper that can use can not be housed in the above-mentioned secondary carrying path 8, then first page of paper P1 and second page of paper P2 will interfere in the part of above-mentioned difference pawl C1 or registration roller R1.Therefore, must prevent this interference, to see in the part in transcription portion downstream and the cross part of above-mentioned secondary carrying path from the sheet transport direction of above-mentioned main carrying path 7 to be made as L4, then should set L1＜L4 to the distance (being the total length of secondary carrying path 8) the above-mentioned registration roller R1 that measures along above-mentioned carrying path.As long as satisfy above-mentioned condition, the interference between the paper that just can avoid being transferred.
Like this, second page of paper P2 arrives the R3 of upset portion that is just changeing, and finished paper reservoir T2 to Flame Image Process by means of the R3 of upset portion then and carries.Paper P2 by the R3 of upset portion is detected by paper sensor S2, and is same with first page of paper P1 shown in Figure 1, begins through after the stipulated time from the note detection signal that receives from paper sensor S2, and the R3 of upset portion begins counter-rotating.Thus, shown in step C, second page of paper P2 is admitted in the secondary carrying path 8.The front end of the paper P2 that is admitted to is detected by paper sensor S3, thereby intermediate calender rolls R2 stops, and paper P2 stops under the state of being controlled by intermediate calender rolls R2 in the secondary carrying path 8 thus.
Like this, during in first page of paper is stayed secondary carrying path 8, ensuing second page of paper P2 arrives the upset R3 of portion and since from main carrying path 7 in the carrying path of secondary carrying path 8, there are 2 pages of paper to be transferred simultaneously, significantly improve so image forms the efficient of handling.
Wherein, first page of paper P1 is in the roller R1 that is positioned and controls and be parked in state in the secondary carrying path 8, and second page of paper P2 is in the state of being controlled by intermediate calender rolls R2.At this moment, with same to the conveying of Fig. 3 from Fig. 2, when paper sensor S1 and paper sensor S3 detect first page of paper P1 and second page of paper P2 when being in the state of being controlled by each roller R1, R2 respectively, by means of control part 12, registration roller restarts rotation, first page of paper P1 be by near the transcription portion the transcription drum 5 thus, thereby the image on above-mentioned second page of original copy surface is by the back side of transcription at paper P1.
When first page of paper P1 passes through fixing roller 6, by photographic fixing, finished paper reservoir T2 then to Flame Image Process and carried by the image of transcription.At this moment, corresponding with the conveying of first page of paper P1, the second page of paper P2 that is parked in intermediate calender rolls R2 place also as mentioned above, with registration roller R1 restart rotation synchronously, utilize the rotation of intermediate calender rolls R2 and, arrive registration roller R1 (with reference to Fig. 4) then by in the secondary carrying path 8.
In step D, regularly corresponding with image formation, by means of the rotation of registration roller R1, second page of paper is sent to transcription portion, thereby the image of the 4th page of original copy is discharged to Flame Image Process then and finishes paper reservoir T2 by the back side of transcription at second page of paper.Carried out above-mentioned conveying and print processing paper P1, paper P2 state as shown in Figure 5, the image of first page and second page original copy is printed on the surface and the back side of paper P1, is discharged to Flame Image Process then and finishes paper reservoir T2.
If paper is a verso, then carry out above-mentioned Fig. 1～5 and steps A～step D shown in Figure 7 repeatedly, all paper are carried out double-side printing processing.
If paper is a recto, then control part 12 carry out repeatedly above-mentioned steps A～step D once more than after, after above-mentioned Fig. 5 or step D finish, switch difference pawl C1.Then, control part 12 passes out to main carrying path 7 with last paper (recto) from the above-mentioned paper reservoir T1 that is untreated, utilize above-mentioned transcription portion to carry out the one-sided image transcription handles at this place, and the difference pawl C1 after making paper that the single face photographic fixing that is through with handles via above-mentioned being switched passes out to secondary carrying path 8 from main carrying path 7.Then, control part 12 switches difference pawl C1 once more.Then, do not utilize intermediate calender rolls R2 that the paper that has entered secondary carrying path 8 is stopped, but make it once more by main carrying path 7, after this place carries out back side image transcription processing, make it be transported to above-mentioned Flame Image Process and finish paper reservoir T2 via the above-mentioned upset R3 of portion.Thus, finished duplex printing to last paper for recto.At this moment, be in the state that has only this last page paper in whole carrying path, to advance.
In the above-described embodiment, above-mentioned main carrying path 7, secondary carrying path 8 and above-mentioned each paper sheet delivery drive division of the upset R3 of portion are respectively by different drive source drive.Thus, can freely control the conveying of paper in each path 7,8 or the R3 of upset portion, stop, can independently carrying out speed change as required in addition, so increased the degree of freedom of control.Certainly, also can utilize shared drive division to constitute part or all of above-mentioned drive division.Utilize the structure of common drive portion, can reduce the cost of drive system.In addition, as mentioned above, be that benchmark is determined roll gap with the paper maximum length, so that paper do not interfere, under the no matter when all certain situation of paper sheet delivery speed, can avoid the interference of paper thus.
The present invention is preferably as follows formation, and the promptly above-mentioned first paper sheet delivery path had turning device before above-mentioned Flame Image Process is finished the paper reservoir, by means of this turning device Flame Image Process is finished paper and passes out to the above-mentioned second paper sheet delivery path.
Form in the device at above-mentioned dual-side image, the quantity that makes the paper of advancing in above-mentioned whole paper sheet delivery path is 2 to be rational.
The concrete structure that above-mentioned dual-side image forms device preferably has:
First image processing apparatus, make first paper that takes out from the above-mentioned paper reservoir that is untreated by the above-mentioned first paper sheet delivery path, utilize above-mentioned image transcription portion to carry out after one-sided image handles, be transported to above-mentioned turning device, utilize this turning device to make the throughput direction upset be direction to the above-mentioned second paper sheet delivery path;
Second image processing apparatus, first paper that utilizes above-mentioned turning device that throughput direction has been overturn is passed out to the above-mentioned second paper sheet delivery path, and make second paper that takes out from the above-mentioned paper reservoir that is untreated by the above-mentioned first paper sheet delivery path, utilize above-mentioned image transcription portion to carry out after one-sided image handles, be transported to above-mentioned turning device, utilize this turning device to make the throughput direction upset be direction to the second paper sheet delivery path;
The 3rd image processing apparatus, first paper that will be arranged in the above-mentioned second paper sheet delivery path passes out to the first paper sheet delivery path from the above-mentioned second paper sheet delivery path, the back side is carried out after the Flame Image Process, being transported to Flame Image Process via above-mentioned turning device finishes in the paper reservoir, on the other hand, will pass out to the second paper sheet delivery path by means of second paper that above-mentioned upset portion has overturn throughput direction;
And the 4th image processing apparatus, second paper that is transported in the above-mentioned second paper sheet delivery path is passed out to the first paper sheet delivery path from the above-mentioned second paper sheet delivery path, therein the back side is carried out being transported to Flame Image Process via turning device and finishing in the paper reservoir after the Flame Image Process.Be applicable to that more than paper is the situation of verso.
In addition, can also have the 5th image processing apparatus, and then above-mentioned the 4th image processing apparatus carries out after the Flame Image Process to second back side of paper, the 3rd paper is being passed out to the first paper sheet delivery path from the above-mentioned paper reservoir that is untreated, above-mentioned therein image transcription portion carries out after the one-sided image transcription handles, make the throughput direction upset by means of above-mentioned steering gear R3, then it is passed out to the second paper sheet delivery path from the above-mentioned first paper sheet delivery path, and make it once more by the first paper sheet delivery path, therein the back side is carried out after the Flame Image Process, make it via above-mentioned turning device, be transported to above-mentioned Flame Image Process and finish the paper reservoir.More than be applicable to the situation of recto paper.
In addition, said structure can followingly be explained.
It is preferred that dual-side image of the present invention forms device, second paper that will be carried out Flame Image Process after first paper and then is removed from the above-mentioned paper reservoir that is untreated, via the first paper sheet delivery path, till throughput direction is overturn, above-mentioned turning device makes the throughput direction upset of first paper, passes out to the above-mentioned second paper sheet delivery path then.In addition, above-mentioned first paper that is sent the second paper sheet delivery path after having carried out the one-sided image processing carries out Flame Image Process to back side of paper the first paper sheet delivery path, till being fed to above-mentioned Flame Image Process and finishing the paper reservoir, above-mentioned turning device makes the throughput direction upset of above-mentioned second paper, passes out to the above-mentioned second paper sheet delivery path then.By carrying out above-mentioned action more than 1 time repeatedly, dual numbers page or leaf paper carries out Flame Image Process efficiently.
In addition, can control, make after above-mentioned action, promptly be sent the above-mentioned second paper sheet delivery path at above-mentioned second paper, in the first paper sheet delivery path, back side of paper is carried out Flame Image Process then, and be fed to above-mentioned Flame Image Process and finish after the paper reservoir, the 3rd paper that only has one page next will carry out Flame Image Process in whole paper sheet delivery path is being advanced.The recto paper is being carried out under the situation of Flame Image Process,, can carry out Flame Image Process efficiently by carrying out above-mentioned action at last.
Each paper sheet delivery drive division of the above-mentioned first paper sheet delivery path, the second paper sheet delivery path and above-mentioned turning device can be respectively by different drive source drive.
Each paper sheet delivery drive division of the above-mentioned first paper sheet delivery path, the second paper sheet delivery path and above-mentioned turning device can have or not and carries out work according to being located at the detected paper of sheet detecting apparatus in each path or the turning device.
The concrete structure of above-mentioned sheet detecting apparatus is preferred, above-mentioned sheet detecting apparatus comprises first sheet detecting apparatus that is located at before the above-mentioned registration roller upstream side at least, this first sheet detecting apparatus detects during paper is carried in whole carrying path at the registration roller upstream side to be had under the situation that another page paper passes through, and timing according to the rules stops registration roller.
In addition, above-mentioned sheet detecting apparatus also comprises second sheet detecting apparatus that is located in the above-mentioned second paper sheet delivery path, above-mentioned second sheet detecting apparatus has in the above-mentioned second paper sheet delivery path under the situation that paper passes through detecting, make the paper that is detected be parked in this position, above-mentioned first sheet detecting apparatus and second sheet detecting apparatus detect under the situation of paper at the same time, and timing according to the rules restarts the rotation of above-mentioned registration roller and the conveying of paper in the above-mentioned second paper sheet delivery path.
Like this, by above-mentioned sheet detecting apparatus being set and making its work, can make handling of paper reservoir never finish paper that the paper reservoir carries and finish paper conveying simultaneously under hands-off situation that the paper reservoir is carried to main carrying path by secondary carrying path to Flame Image Process, thereby improve treatment effeciency significantly from Flame Image Process by main carrying path.
Embodiment of Xiang Xishuominging or embodiment only are for technology contents of the present invention is described in the present invention, but the invention is not restricted to above-mentioned specific embodiment and explained by narrow sense ground, in the scope of essence of the present invention and claim, can carry out various changes to it.
Claims (16)
1. a dual-side image forms device, is provided with:
One-sided image forms the first paper sheet delivery path (7) of usefulness, makes paper that handling of paper reservoir (T1) never sends via image transcription portion (5), gives Flame Image Process then and finishes paper reservoir (T2);
The second paper sheet delivery path (8) is connected with the above-mentioned first paper sheet delivery path (7), makes surface and the back side upset of having finished the paper of Flame Image Process at single face, gives above-mentioned image transcription portion (5) then;
Intermediate calender rolls (R2) along the above-mentioned second paper sheet delivery path (8) setting; With
Registration roller (R1), the timing that is used to paper sheet delivery is arrived on the above-mentioned first paper sheet delivery path (7) is synchronous,
Wherein, above-mentioned first paper sheet delivery path (7) and the above-mentioned second paper sheet delivery path (8) are configured to: when carrying out dual-side image formation action, multipage paper can be advanced in the whole paper sheet delivery path (7,8) that is made of above-mentioned first paper sheet delivery path (7) and the above-mentioned second paper sheet delivery path (8) simultaneously
The rotation of above-mentioned intermediate calender rolls (R2) and above-mentioned registration roller (R1) restart rotation synchronously.
2. dual-side image according to claim 1 forms device, the above-mentioned first paper sheet delivery path (7) is finished paper reservoir (T2) in above-mentioned Flame Image Process and is had turning device (R3) before, and the paper that this turning device (R3) will be have been finished Flame Image Process at single face passes out to the above-mentioned second paper sheet delivery path (8).
3. dual-side image according to claim 2 forms device, in the above-mentioned second paper sheet delivery path (8), also have and detect the paper sensor (S3) that paper passes through, above-mentioned paper is to have carried out the one-sided image processing in the above-mentioned first paper sheet delivery path (7), upset and the paper that in the above-mentioned second paper sheet delivery path (8), is transferred then, when this paper sensor (S3) detects paper and passes through, make the paper that is detected be parked in this position, and timing according to the rules restart to carry.
4. dual-side image according to claim 2 forms device, the above-mentioned first paper sheet delivery path (7) from the above-mentioned paper reservoir (T1) that is untreated to the part of image transcription portion (5) and the connecting portion of the above-mentioned second paper sheet delivery path (8), in order to adjust the position of image on paper that utilizes above-mentioned image transcription portion (5) transcription, also have and adjust paper begins to carry registration roller (R1) from timing to above-mentioned image transcription portion (5).
5. dual-side image according to claim 1 forms device, and the quantity of the paper of advancing simultaneously in above-mentioned whole paper sheet delivery path is 2.
6. dual-side image according to claim 2 forms device, second paper that will be carried out Flame Image Process after first paper and then is removed from the above-mentioned paper reservoir (T1) that is untreated, via the first paper sheet delivery path (7), till throughput direction is overturn, above-mentioned turning device (R3) makes the throughput direction upset of first paper, passes out to the above-mentioned second paper sheet delivery path (8) then.
7. dual-side image according to claim 6 forms device, above-mentioned first paper that is sent the second paper sheet delivery path (8) after having carried out the one-sided image processing carries out Flame Image Process to back side of paper the first paper sheet delivery path (7), till being fed to above-mentioned Flame Image Process and finishing paper reservoir (T2), above-mentioned turning device (R3) makes the throughput direction upset of above-mentioned second paper, passes out to the above-mentioned second paper sheet delivery path (8) then.
8. dual-side image according to claim 7 forms device, control, make and be sent the above-mentioned second paper sheet delivery path (8) at above-mentioned second paper, in the first paper sheet delivery path (7), back side of paper is carried out Flame Image Process then, and be fed to above-mentioned Flame Image Process and finish paper reservoir (T2) afterwards, the 3rd paper that only has one page next will carry out Flame Image Process in whole paper sheet delivery path (7,8) is being advanced.
9. dual-side image according to claim 4 forms device, the length of maximum paper on throughput direction in the paper that can offer this dual-side image formation device is made as L1, measure along the above-mentioned second paper sheet delivery path (8), be made as under the situation of L2 to the distance the above-mentioned registration roller (R1) from above-mentioned paper sensor (S3), above-mentioned paper sensor (S3) and above-mentioned registration roller (R1) are set, make L1＜L2.
10. dual-side image according to claim 4 forms device, the length of maximum paper on throughput direction in the paper that can offer this dual-side image formation device is made as L1, measure along the above-mentioned first paper sheet delivery path (7), be made as under the situation of L3 to the distance the above-mentioned turning device (R3) from above-mentioned registration roller (R1), above-mentioned registration roller (R1) and above-mentioned turning device (R3) are set, make L1＜L3.
11. dual-side image according to claim 4 forms device, the length of maximum paper on throughput direction that can offer in the paper that this dual-side image forms device is made as L1, sheet transport direction from the above-mentioned first paper sheet delivery path (7), is under the situation of L4 from the cross part of the part that is positioned at image transcription portion (5) downstream and the above-mentioned second paper sheet delivery path (8) to the distance the above-mentioned registration roller of measuring along the above-mentioned second paper sheet delivery path (8) (R1), the above-mentioned first paper sheet delivery path (7) is set, the second paper sheet delivery path (8) and above-mentioned registration roller (R1) make L1＜L4.
12. dual-side image according to claim 2 forms device,
Above-mentioned turning device (R3),
Carry out under the situation of Flame Image Process at dual numbers page or leaf paper, carry out 1 time or repeatedly following action: when first paper that will be transferred in order continuously and second paper pass out to the second paper sheet delivery path (8), be removed from the above-mentioned paper reservoir (T1) that is untreated from above-mentioned second paper, via the first paper sheet delivery path (7), till throughput direction is overturn, above-mentioned turning device (R3) makes the throughput direction upset of first paper, passes out to the above-mentioned second paper sheet delivery path (8) then; The first paper sheet delivery path (7), back side of paper is carried out Flame Image Process from above-mentioned first paper that is sent the second paper sheet delivery path (8), till being fed to above-mentioned Flame Image Process and finishing paper reservoir (T2), make the throughput direction upset of second paper, pass out to the above-mentioned second paper sheet delivery path (8) then
The recto paper is being carried out under the situation of Flame Image Process, carry out 1 time or repeatedly above-mentioned action after, control, make the 3rd paper that in whole paper sheet delivery path (7,8), only has one page next will carry out Flame Image Process advance.
13. dual-side image according to claim 2 forms device, each paper sheet delivery drive division of the above-mentioned first paper sheet delivery path (7), the second paper sheet delivery path (8) and above-mentioned turning device (R3) is respectively by different drive source drive.
14. dual-side image according to claim 13 forms device, each paper sheet delivery drive division basis of the above-mentioned first paper sheet delivery path (7), the second paper sheet delivery path (8) and above-mentioned turning device (R3) is located at the detected paper of sheet detecting apparatus (S1, S2, S3) in each path or the turning device (R3) and has or not and carry out work.
15. dual-side image according to claim 14 forms device, above-mentioned sheet detecting apparatus (S1, S2, S3) comprises first sheet detecting apparatus (S1) that is located at before above-mentioned registration roller (R1) upstream side at least, this first sheet detecting apparatus (S1) detects during paper is carried in whole carrying path (7,8) at registration roller (R1) upstream side to be had under the situation that another page paper passes through, and timing according to the rules stops registration roller (R1).
16. dual-side image according to claim 15 forms device, above-mentioned sheet detecting apparatus (S1, S2, S3) also comprises second sheet detecting apparatus (S3) that is located in the above-mentioned second paper sheet delivery path (8), above-mentioned second sheet detecting apparatus (S3) has in the above-mentioned second paper sheet delivery path (8) under the situation that paper passes through detecting, make the paper that is detected be parked in this position
Above-mentioned first sheet detecting apparatus (S1) and second sheet detecting apparatus (S3) detect under the situation of paper at the same time, and timing according to the rules restarts the rotation of above-mentioned registration roller (R1) and the conveying of paper in the above-mentioned second paper sheet delivery path (8) synchronously.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP296892/2002 | 2002-10-10 | ||
| JP2002296892 | 2002-10-10 | ||
| JP297050/2003 | 2003-08-21 |
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| CN1497396A CN1497396A (en) | 2004-05-19 |
| CN1307493C true CN1307493C (en) | 2007-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101006257A Expired - Fee Related CN1307493C (en) | 2002-10-10 | 2003-10-10 | Two-sided image forming device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4304530B2 (en) * | 2006-03-23 | 2009-07-29 | セイコーエプソン株式会社 | Conveyance path switching device in double-sided recording device, double-sided recording device provided with the same |
| CN101526793B (en) * | 2008-03-07 | 2011-01-12 | 致伸科技股份有限公司 | Duplex printing device |
| JP6542711B2 (en) * | 2016-05-27 | 2019-07-10 | 株式会社ミヤコシ | Electrophotographic sheet-fed double-sided printing machine |
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