CN100492167C - Image forming device - Google Patents

Image forming device Download PDF

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Publication number
CN100492167C
CN100492167C CNB2006101452586A CN200610145258A CN100492167C CN 100492167 C CN100492167 C CN 100492167C CN B2006101452586 A CNB2006101452586 A CN B2006101452586A CN 200610145258 A CN200610145258 A CN 200610145258A CN 100492167 C CN100492167 C CN 100492167C
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CN
China
Prior art keywords
image forming
photographic paper
medium
forming medium
roller
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Expired - Fee Related
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CNB2006101452586A
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Chinese (zh)
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CN1971409A (en
Inventor
山本章仁
西田吉男
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Noritsu Koki Co Ltd
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Noritsu Koki Co Ltd
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Publication of CN1971409A publication Critical patent/CN1971409A/en
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Publication of CN100492167C publication Critical patent/CN100492167C/en
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  • Projection-Type Copiers In General (AREA)
  • Handling Of Sheets (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

An image forming device provided with a clamp unit (10), receives a photographic paper (P) supplied from a photographic paper (P) supplying portion at a receiving position (P1) of an upstream of a photographic paper P delivering direction, and provides the photographic paper (P) at a delivering position (P2) of a downsteam of the photographic paper (P) delivering direction; when a feed length set by a feed length setting device (60d) exceeds a predetermined value, the photographic paper (P) is cut according to the set value by a tool (4) during an image forming process. The clamp unit (10) delivers a front side of the photographic paper (P) clamped by a clamp roller (11) from the receiving position (P1) to the delivering position (P2) and then back to the receiving position (P1), thereafter, the clamp roller (11) supports a rear side of the cut photographic paper (P) and delivers it to the delivering position (P2).

Description

Image processing system
Technical field
The present invention relates to a kind of image processing system, particularly be included in the image processing system of the imaging portion of image forming medium image forming surface.
Background technology
As everyone knows, the image processing system as at the image forming surface of printing paper (being equivalent to image forming medium) has multiple structure.Below, relevant representational structure is described.In image processing system, be rolled into columnar rectangular printing paper and be contained in the paper magazine.Printing paper from paper magazine extracts is sent to the tool position along the transport path of stipulating, is cut into the stamp with the size of regulation by described cutter.Fixture unit (being equivalent to medium transport portion) is transported to and transmits the position after accepting the printing paper of accepting to be cut in the position.
In case the conveying mechanism that is positioned at conveyance direction downstream side is accepted printing paper accepting the position, then in imaging portion imaging is carried out on the printing paper surface and is handled.In the described imaging portion, as when utilizing laser aid to carry printing paper toward sub scanning direction, the laser of regulating according to view data light to the main scanning direction multiple scanning, at the surface of printing paper formation latent image.In development treatment portion, by the development treatment that described printing paper is stipulated, described latent image will be developed, and then is printed as photo.
About aforesaid image processing system, there is a kind of method that columnar strip printing paper is cut off by required length in the prior art.Figure 17 represents TOHKEMY 2003-50488 proposed invention device, and cutter cuts off printing paper from the direction vertical with the photographic paper delivering direction in this device.Particularly, in this device, between conveying roller 130 and standby roller 122, be provided with accommodation section 126.When the front end of transfer materials 109 during the 122 places standby of standby roller, the transfer materials 109 that transports from conveying roller 130 forms crooked and is accommodated in the accommodation section 126.And also be provided with timer, the front end of the transfer materials 109 after first sensor 135 detects process cutter 131, this timer picks up counting.The front end of the transfer materials 109 after second sensor 123 detects process standby roller 122, then standby roller 122 stops the rotation, and the conveying roller 130 that stops the rotation after the timing of timer reaches the stipulated time is so that the amount of bow of transfer materials 109 reaches ormal weight.
But there is following problem in aforesaid image processing system.That is, if will carry out will printing the very big image of size as print ad etc. the time, the size of photographic paper delivering Width can be very big, is difficult to carry printing paper under the state of carrying Width not to be offset.For example, when utilizing conveying roller to carry printing paper, very even because of be difficult to assurance at the axial outside dimension of conveying roller, printing paper is offset in course of conveying unavoidably.If root paper is delivered to imaging portion under shift state, then formed image also can be offset on printing paper, and the quality of image can reduce.
In addition, in order to adapt to various stamps with the size, the setting that image processing system need can change feeding length.When the printing paper feeding length is lower than to a certain degree, adopts prior art also can stablize fully and carry printing paper and guarantee picture quality.But, when the feeding length of printing paper greater than to a certain degree the time, how to stablize and carry printing paper to become a difficult problem, be difficult in the prior art address this problem.In order to adapt to the requirement of printing large-size images, before imaging portion, spatial accommodation is set as mentioned above, the printing paper that can't be received into this spatial accommodation is then cut off in image forming course.But adopt the image that image processing system printed of said method ribbon grain (fold) can occur, hope can be removed this influence.Moreover when printing large-size images, the weight of printing paper can be very heavy, and these weight can increase the weight of the appearance of above-mentioned ribbon grain.
Summary of the invention
Given this, the object of the present invention is to provide a kind of image processing system, when printing large-size images, also can give imaging portion with photographic paper delivering, while and also can carry out image formation to the long printing paper of feeding length and carry printing paper exactly at correct transfer position.
For achieving the above object, the image processing system that the present invention proposes is included in the imaging portion of the image forming surface of image forming medium, medium transport portion, feeding length setting device, cut-out portion and medium maintaining body.Medium transport portion accepts the image forming medium supplied from image forming medium supply department in the position of accepting that is being positioned at image forming medium throughput direction upstream side, provides image forming medium in the transmission position that is positioned at the image forming medium conveyance direction downstream side to described imaging portion.The feeding length setting device is used to set the feeding length of described image forming medium.Cut-out portion is positioned at the described upstream side of accepting the position at throughput direction, is used for cutting off described image forming medium by any feeding length.The medium maintaining body is located in the described medium transport portion, in the image forming medium course of conveying the gamut of medium transport Width or roughly gamut keep image forming medium.When the feeding length setting value that is set by the feeding length setting device surpasses setting, in image forming course, cut off image forming medium according to described setting value by described cut-out portion.Medium transport portion will be transported to transmit to turn back to behind the position and accept the position from accepting the position by the front end of the image forming medium of described medium maintaining body clamping, will will be transported to and transmit the position from accepting the position by the rear end of the image forming medium after the cut-out of described medium maintaining body clamping again.
At this, so-called feeding length arbitrarily not only refers to the given size that will cut off according to stamp with the size also refer to other data of importing from the other-end that is connected to image processing system.
The following describes the effect and the effect of image processing system with described formation.
When stamp with the size was normal value, the front end of image forming medium was fed to imaging portion, cut off the rear end of image forming medium then and was fed to imaging portion.But,,, be difficult under the state that is not offset, carry printing paper because of carrying the non-constant width of width if will carry out will printing the very big image of size the time as print ad etc.In image processing system of the present invention, medium transport portion accepts image forming medium in the position of accepting that is positioned at image forming medium throughput direction upstream side, carries image forming medium to the transmission position in the downstream that is positioned at throughput direction.Medium transport portion is transported to image forming medium to transmit the position from accepting the position under the state by the front end of described medium maintaining body clamping image forming medium.According to the picture size that will print, set the setting value of the feeding length of image forming medium in advance by the feeding length setting device.The displacement of medium transport portion is also determined according to above-mentioned setting value.When the feeding length of imaging medium surpasses setting, pass to imaging portion at the front end that does not cut off under the state of image forming medium image forming medium earlier, in imaging portion carries out process that image forms, cut off image forming medium by required stamp with the size then by cut-out portion.In this image processing system, support by described medium maintaining body under the state of rear end of the image forming medium after described being cut off to be transported to and to transmit the position from accepting the position.In addition, the medium maintaining body in the image forming medium course of conveying the gamut of medium transport Width or roughly gamut keep image forming medium.
According to said structure, can under the state that is not offset, carry the front end and the rear end of image forming medium.Owing to can suppress the generation of skew, even also can under the state that is not offset, carry image forming medium when therefore stamp with the size is very big at the two ends of image forming medium.Can carry out imaging processing on one side in addition, not carry image forming medium Yi Bian skew ground does not take place.Thereby provide the printable image processing system that goes out high quality image.
Comprise also that in image processing system of the present invention ring forms device, when medium transport portion forms ring described accept between position and the described transmission position when mobile on image forming medium.Forming on the image forming medium under the state of ring forming device by ring, keeping the rear end of image forming medium and carry by the medium maintaining body.
As mentioned above, when the stamp with the size on the throughput direction is grown (feeding length is longer), be preferably in to keep under the state of rear end of image forming medium image forming medium is transported to and transmit the position by the medium maintaining body.But the front end defeated at image forming medium moves to the rear end that keeps image forming medium the process of imaging portion from the transmission position, harmful effects such as image forming medium distortion might occur.For eliminating above-mentioned influence, ring formation device is set is used for forming ring at image forming medium.Forming device by ring under the state of formation ring on the image forming medium, keeping the rear end of image forming medium and be transported to transmitting the position by the medium maintaining body.By this structure, can avoid being held harmful effects such as distortion occur because of the rear end of image forming medium, prevent to apply excessive external force to image forming medium.Thereby provide the printable image processing system that goes out high quality image.
In image processing system proposed by the invention, also comprise the transporting velocity setting device, be used to set the transporting velocity of image forming medium.When described feeding length setting value surpasses setting, set the transporting velocity of image forming medium front-end and back-end respectively by described transporting velocity setting device, make the speed that the image forming medium front end is transported to when transmitting the position be set to different value with the speed that the image forming medium rear end is transported to when transmitting the position.
The following describes the effect and the effect of image processing system with described formation.
In image processing system of the present invention, medium transport portion accepts image forming medium in the position of accepting that is positioned at image forming medium throughput direction upstream side, and carries image forming medium to the transmission position that is positioned at conveyance direction downstream side.Medium transport portion is transported to image forming medium to transmit the position from accepting the position under the state by the front end of described medium maintaining body clamping image forming medium.According to the picture size that will print, set the setting value of the feeding length of image forming medium in advance by the feeding length setting device.The displacement of medium transport portion is also determined according to above-mentioned setting value.When stamp with the size was normal value, the front end of image forming medium was fed to imaging portion, and the rear end of image forming medium is fed to imaging portion after cut-out then.When the feeding length of imaging medium surpasses setting, pass to imaging portion at the front end that does not cut off under the state of image forming medium image forming medium earlier, in imaging portion carries out process that image forms, cut off image forming medium by required stamp with the size then by cut-out portion.In this image processing system, support by described medium maintaining body under the state of rear end of the image forming medium after described being cut off to be transported to and to transmit the position from accepting the position.
At this moment, the transporting velocity of image forming medium determines according to the feeding length of image forming medium.When the transporting velocity of imaging medium front end is set at identical value with the transporting velocity of image forming medium rear end, be difficult to guarantee that image forming medium is not offset.In this image processing system, the image forming medium front end is transported to the speed of transmitting the position and the transporting velocity of image forming medium rear end is set to different value.
According to said structure,, also can under the state that is not offset, carry image forming medium even the feeding length of image forming medium is very long.Certainly belong to normal value in stamp with the size, and the feeding length of imaging medium can make it possible to carry image forming medium under the state that is not offset too when longer by setting different transporting velocities.In addition,, can form ring (loose portion) easily, thereby the printable image processing system that goes out high quality image is provided by setting different transporting velocities.
In image processing system proposed by the invention, the medium maintaining body is this front end of clamping when carrying the front end of image forming medium, this rear end of holding when carrying the rear end of image forming medium.
Because the front end of image forming medium is by medium maintaining body clamping, the rear end of image forming medium only need support that the degree that becomes not fall down gets final product.Moreover, when the transporting velocity of the front-end and back-end of imaging medium not simultaneously, be necessary to prevent pullling mutually of front-end and back-end, and need prevent the shock and vibration transmitted from the direction vertical with the throughput direction of image forming medium.
In image processing system proposed by the invention, when carrying the front end of image forming medium,, when carrying the rear end of image forming medium, keep this rear end by the medium maintaining body by this front end of medium maintaining body clamping.Concrete grammar is, removes under the state of crimping at the hold assembly of medium maintaining body, the rear end of image forming medium is placed on the parts get final product.According to said structure, can alleviate the load that imposes on the image forming medium two ends, can under the state that is not offset, carry image forming medium.Thereby provide the printable image processing system that goes out high quality image.
In the present invention, the speed of conveying image forming medium rear end will be lower than the transporting velocity of image forming medium front end.
As mentioned above, when carrying image forming medium to carry the rear end simultaneously,, influence so that alleviate the throughput direction that brings from the rear end in order more effectively to prevent the conveying shock and vibration of image forming medium.
So that the translational speed of medium transport portion is less than the transporting velocity from the described medium transport portion image forming medium of side conveying downstream.
The following describes the effect and the effect of the image processing system of described formation.
In image processing system proposed by the invention, medium transport portion accepts image forming medium in the position of accepting that is positioned at image forming medium throughput direction upstream side, and carries image forming medium to the transmission position that is positioned at conveyance direction downstream side.According to the picture size that will print, set the setting value of the feeding length of image forming medium in advance by the feeding length setting device.The displacement of medium transport portion is also determined according to above-mentioned setting value.When stamp with the size was normal value, the front end of image forming medium was fed to imaging portion, and the rear end of image forming medium is fed to imaging portion after cut-out then.When the feeding length of imaging medium surpasses setting, pass to imaging portion at the front end that does not cut off under the state of image forming medium image forming medium earlier, carry out in the image forming course in imaging portion then, cut off image forming medium by cut-out portion by required stamp with the size.
At this moment, the transporting velocity of image forming medium determines according to the feeding length of image forming medium.In order to have ribbon grain in the image that prevents to print, be necessary to guarantee not run-off the straight of image forming medium.So, in this image processing system, control transporting velocity, make to move to when accepting the position from transmitting the position when described medium transport portion that the translational speed of medium transport portion is less than the transporting velocity from the described medium transport portion image forming medium of side conveying downstream.
When printing the very big image of size, carry the size of Width also very big, offset problem takes place in course of conveying easily.In this image processing system,, can prevent offset problem very effectively by the transporting velocity of control image forming medium and the translational speed of medium transport portion.
In addition, when the feeding length of imaging medium surpasses setting, limited because of the spatial accommodation in the medium transport portion, pass to imaging portion at the front end that does not cut off under the state of image forming medium image forming medium, carry out cutting off image forming medium by cut-out portion in the process of image formation in imaging portion then.At this moment, medium transport portion and the both sides of imaging portion are carrying out the conveying operation of image forming medium.In this image processing system, the feed speed of the image forming medium that control is supplied with from the medium supply unit is greater than the image forming medium transporting velocity in imaging portion.By this formation, can form ring in the accommodation section, thereby can prevent to apply extra load to image forming medium.Thereby provide the printable image processing system that goes out high quality image.
When image forming medium feeding length of the present invention surpasses setting, make the imaging transporting velocity of the supply rate of image forming medium greater than imaging portion.
When printing big printing paper, owing to carry width big, thereby to keep not being subjected to image forming medium be very difficult in the conveying of the influence of throughput direction.At above-mentioned imaging device,, can prevent skew effectively by the transporting velocity of control image forming medium and the translational speed of medium transport portion.
In addition, when the image forming medium feeding length surpasses setting,, and adopt the method for in the middle of image forms, cutting off because the image forming medium capacity of medium transport portion is big inadequately, thereby begins imaging before cutting off image forming medium.
So that supply the image taking speed of the speed of image forming medium greater than imaging portion from medium supply department.
Therefore, form ring in the accommodation section and can prevent that image forming medium is subjected to extra duty, thereby the printable image processing system that goes out high quality image is provided.
Description of drawings
Fig. 1 is the internal structure figure (synoptic diagram) of the major part of image processing system;
Fig. 2 is the internal structure figure (concrete figure) of the major part of image processing system;
Fig. 3 is the formation side view of fixture unit;
Fig. 4 is the functional block diagram of image processing system;
Fig. 5 A～5F is respectively the synoptic diagram of the formation of explanation printing paper ring;
Fig. 6 A～6D is respectively the synoptic diagram (first pattern) of explanation photographic paper delivering operation;
Fig. 7 is the process flow diagram (first pattern) of explanation photographic paper delivering operation;
Fig. 8 A～8D is respectively the synoptic diagram (second pattern) of explanation photographic paper delivering operation;
Fig. 9 is the process flow diagram (second pattern) of explanation photographic paper delivering operation;
Figure 10 A～10F is respectively the synoptic diagram (three-mode) of explanation photographic paper delivering operation;
Figure 11 is the process flow diagram (three-mode) of explanation photographic paper delivering operation;
Figure 12 A～12J is respectively the synoptic diagram (four-mode) of explanation photographic paper delivering operation;
Figure 13 is the process flow diagram (four-mode) of explanation photographic paper delivering operation;
Figure 14 A～14C is respectively the synoptic diagram of the operation of explanation turning part D;
Figure 15 A～15C is respectively the synoptic diagram of the operation of explanation turning part D;
Figure 16 A～16C is respectively the synoptic diagram of the variation of explanation anchor clamps roller;
Figure 17 is existing image processing system internal structural map;
Figure 18 is the key diagram of the enforcement state except that the image processing system function;
Figure 19 A～19D is respectively the synoptic diagram of explanation photographic paper delivering speed;
Figure 20 A～20D is respectively the synoptic diagram of explanation fixture unit return state;
Figure 21 A～21E is respectively the synoptic diagram (four-mode) of the enforcement state of explanation except that the photographic paper delivering operation;
Figure 22 is the process flow diagram of the enforcement state except that the photographic paper delivering operation.
Symbol description
A printing paper supply department
The B photographic paper delivering unit
C imaging portion
The D turning part
The M paper magazine
P printing paper
P1 accepts the position
P2 transmits the position
4 cutters
10 fixture units
11 anchor clamps rollers
12 lateral paper guides
13 travelling belts
20 first exposure conveying rollers
21 second exposure conveying rollers
60 control parts
The 60a shift correction device
60b transport model setting device
The 60c ring forms device
60d printing paper feeding length setting device (feeding length setting device)
60e transporting velocity setting device
61 anchor clamps control parts
62 compensating value storage parts
63 camera obscura test sections
64 stamp with the size configuration parts
Embodiment
Below, utilize the best enforcement constitutional diagram 1～Figure 16 C of relevant image processing system of the present invention to describe.And " upstream side " hereinafter, " downstream ", " front end " and " rear end " are meant respectively " upstream side ", " downstream ", " front end " and " rear end " with respect to throughput direction.Simultaneously, " go up direction " and " following direction " be meant, respectively with respect to " last direction " and " the following direction " of vertical direction.
[formation of image processing system]
Fig. 1 is the internal structure figure (synoptic diagram) of the major part of image processing system.Image processing system shown in Figure 1 comprises the digital exposure device, has according to view data to wash as exposure image on the surface of photographic paper P (for photo photosensitive material, being equivalent to image forming medium) and carry out the function of photo prints.Particularly, have and to carry out as the sizable photo prints function of stamp with the size such as advertisement printed.Image processing system mainly is provided with the A of printing paper supply department (being equivalent to medium supply department), photographic paper delivering unit B (being equivalent to medium transport portion), the C of imaging portion and turning part D.
The A of printing paper supply department comprises, paper magazine M, preposition roller 1, cutter preliminary roller 2, phase paper sensor 3 and cutter (cut-out portion) 4.2 paper magazine M that can freely load and unload can be installed, from any selecteed paper magazine M supply photographic paper P among the A of printing paper supply department.According to this formation, for instance, can prepare the printing paper of two kinds of different width dimensions.Accommodate among the paper magazine M and be rolled into strip photographic paper P cylindraceous.By preposition roller 1 photographic paper P that extracts from paper magazine M is sent to cutter preliminary roller 2.Near the downstream of cutter preliminary roller 2, be provided with phase paper sensor 3.Whether the front end that phase paper sensor 3 detects photographic paper P has arrived the place ahead of cutter 4.Cutter 4 cuts off the rear end of photographic paper P, the stamp with the size that printing paper is reached set.And, after the conveying that temporarily stops photographic paper P, carry out the cut-out of photographic paper P.
Photographic paper delivering unit B comprises, roller 5, lateral paper guide 6, fixture unit (medium transport portion) 10 behind the cutter.Roller 5 and lateral paper guide 6 are located at the downstream of cutter 4 behind the cutter.By roller behind the cutter 5 and lateral paper guide 6 cut photographic paper P is sent to more downstream, and offers fixture unit 10 accepting position P1.
Fixture unit 10 comprises, anchor clamps roller 11 (being equivalent to the medium maintaining body) and lateral paper guide 12.Anchor clamps roller 11 is accepted photographic paper P at the position P1 that accepts of upstream side, and the transmission position in downstream P2 downstream side photographic paper P is provided.Anchor clamps roller 11 comprises pair of rolls (driven roller and crimping roller), at the gamut of sending Width or the front end of gamut clamping photographic paper P roughly.That is, under by the state of anchor clamps roller 11 clamping photographic paper P front ends, photographic paper P is transported to transmission position P2.In addition, under the state by anchor clamps roller 11 support photographic paper P rear ends (being about to the rear end is placed on it) photographic paper P is transported to transmission position P2.Lateral paper guide 12 is the mechanism that is provided with for the photographic paper P that provides from the A of printing paper supply department is provided smoothly.Lateral paper guide 12 is made of two boards up and down, when accepting photographic paper P, inserts a mouthful 12a by enlarging, and the photographic paper P that transports can not be stuck on the lateral paper guide 12 and can import to the position of anchor clamps roller 11.
The C of imaging portion comprises that the first exposure conveying roller 20, the second exposure conveying roller 21, laser aid and exposure not shown in the figures begin sensor 23.Simultaneously, exposure conveying roller 20,21 around be provided with lateral paper guide 22.In case receive photographic paper P from fixture unit 10,20,21 of conveying rollers of exposure speed are in accordance with regulations carried photographic paper P, wash the picture exposure image at the emulsion side of photographic paper P during this period.Particularly, carry photographic paper P by exposure conveying roller 20,21 along sub scanning direction on one side, on one side the laser that will regulate according to view data carries out multiple scanning along main scanning direction (conveying Width) to photographic paper P, can form image (latent image) thus on photographic paper P successively.In Fig. 1, arrow L is depicted as the laser radiation direction.In order to control the exposure zero hour of utilizing laser, exposure beginning sensor 23 is located near the downstream of transmitting position P2.Exposure beginning sensor 23 is the optical sensors that detect the photographic paper P front end, can use the sensor same with paper sensor mutually described above 3.
Turning part D comprises, conversion roller 30 and take up roll 31.Conversion roller 30 also comprises driven roller 30a, 30b.These be used to change the photographic paper P emulsion side towards mechanism.The upper surface that is transferred the photographic paper P of coming is an emulsion side, but makes arrow N side become emulsion side by conversion roller 30 conversion directions.At this moment, washed the photographic paper P conversion direction of picture exposure image by driven roller 30a, 30b clamping.Take up roll 31 is to be provided with conversion roller 30 identical purposes, starts during the very long photographic paper P of the length on handling throughput direction.Simultaneously, take up roll 31 is arranged to and can be moved to the direction (tiltedly below) of the arrow Q of Fig. 1.Also have, describe operation hereinafter in detail about turning part D.Photographic paper P behind the formation image is sent to development treatment portion 40, dried portion 41, printing paper discharge portion 42 successively by turning part D and finishes the printing of photo.And the phase paper sensor 32 among the figure detects photographic paper P and whether is transported to development treatment portion.
Below, utilize Fig. 2 and Fig. 3 to further describe image processing system.Fig. 2 is the concrete pie graph of image processing system mode chart shown in Figure 1.Fig. 3 is the concrete formation side view of fixture unit 10.
Carry the both sides of Width to be provided with the travelling belt 13 that is used to carry fixture unit 10 at fixture unit 10.Fixture unit 10 is installed on the travelling belt 13 via supporter 14.In order to drive a pair of travelling belt 13, the first motor 15A and the second motor 15B (with reference to Fig. 3) are installed, and these motor are connected with travelling belt 13 with pulley 16b by belt 16a.Therefore, in case drive the first motor 15A and the second motor 15B, just can carry fixture unit 10.These motor 15A, 15B, belt 16a, pulley 16b, travelling belt 13 constitute conveying mechanism, and anchor clamps roller 11 is carried to transmitting position P2 (with reference to Fig. 1) from accepting position P1 (with reference to Fig. 1).In addition, fixture unit 10 can also be transferred to and accept position P1 from transmitting position P2.
Anchor clamps roller 11 comprises, driven roller 11a and crimping roller 11b (with reference to Fig. 2).Crimping roller 11b can and leave between the state of (releasing crimping) driven roller 11a at the state of crimping driven roller 11a and switch.Remove motor 17 (with reference to Fig. 3) in case drive crimping, working shaft 18 (with reference to Fig. 3) is rotation and carriage release lever 19 (with reference to Fig. 3) just.With the mobile phase interlock of bar 19, crimping roller 11b (with reference to Fig. 2) moves to the direction of removing crimping.In case drive driven roller 11a by driving motor 50, then carry by the photographic paper P of anchor clamps roller 11 clampings.In addition, fixture unit 10 is being transferred to when accepting position P1 from transmitting position P2, crimping roller 11b is in the state of removing crimping, to guarantee not scratch image forming medium.Guide function when fixture unit 10 is carried in guide mechanism 51 performances.
Also have, as shown in Figure 2, be provided with the first ring limited part 52 and the second ring limited part 53 that forms mechanism as ring in the upstream side and the downstream of photographic paper delivering direction.These limited parts are installed on the bracing frame 54 and can center on axle center 52a, 53a rotation separately.These ring limited parts limit the ring (relaxing) of photographic paper P, and ring is formed downwards, and by the application of force so that leading section 52b, the 53b of ring be positioned at always the below.
In addition, these ring limited parts 52,53 mobile quilt of being arranged to be accompanied by fixture unit 10 upwards boosts.As shown in Figure 2, when fixture unit 10 is positioned at when transmitting position P2, the second ring limited part 53 in downstream is upwards boosted via fixture unit 10 self, rotates about 90 °.On the contrary, when fixture unit 10 is positioned at when accepting position P1, the first ring limited part 52 is upwards boosted, and rotates about 90 °.About the formation of photographic paper P ring, will describe in detail hereinafter.
[functional module of image processing system constitutes]
Below, the major function of relevant Fig. 1～image processing system shown in Figure 3 is described according to the module map of Fig. 4.Control part 60 is controlled image processing system integral body.Specifically, to anchor clamps control part 61, compensating value storage part 62, camera obscura test section 63, stamp with the size configuration part 64, operational throughput test section 65, imaging control part 66, Tool Control portion 67, camera obscura control part 68 turns to control part 69 grades to control.In addition, control part 60 has the function of shift correction device 60a, transport model setting device 50b, ring formation device 50c and feeding length setting device 50d.Shift correction device 50a selects to be stored in compensating value in the compensating value storage part 62 according to the data of camera obscura test section of hereinafter describing 63 or stamp with the size configuration part 64.According to described selecteed compensating value, control part 60 sends to anchor clamps control part 61 and instructs the driving first motor 15A and the second motor 15B to carry out the offset compensation of photographic paper P.Transport model setting device 60b carries operation according to the Data Control that is set in stamp with the size configuration part 64, and it can be realized and the corresponding appropriate conveying of stamp with the size.In the operation by the control of transport model setting device, ring forms the ring formation that device 60c also controls photographic paper P.When the length of imaging medium surpassed setting, 60d controlled by the feeding length setting device, made in imaging portion carries out process that image forms, was cut off image forming medium by required stamp with the size and was carried by cut-out portion.At this moment, according to the picture size that will print, set the length and the off-position that form image, and set transport model described later in view of the above.The feeding length of image forming medium is obtained by the data that are set in stamp with the size configuration part 64.If the picture size of printing is in normal range, then because photographic paper delivering unit B has the effect of printing paper accommodation section, so also can carry out imaging processing behind the rear end that cuts off medium even the phase paper size is big.Yet when very big, the limited spatial accommodation in the medium transport portion can't hold whole printing paper as phase paper sizes such as print ad images.That is to say, when " feeding length of image forming medium surpass setting ", be necessary under the state that image forming medium does not cut off the front end of image forming medium is passed to imaging portion, then in carry out the process that image forms by imaging portion, cut off image forming medium by cut-out portion, and carry under the state that is vibrated in the rear end of not giving the medium after cutting off.In this image processing system, control according to the data that are set in stamp with the size configuration part 64 by feeding length setting device 60d, and the stamp with the size of different length is carried out appropriate control by transport model setting device 60b.
Motor 17 and driving motor 50 are removed in the anchor clamps control part 61 drive controlling first motor 15A, the second motor 15B, crimping.As mentioned above, the first motor 15A and the second motor 15B are positioned at the two ends of fixture unit 10 (with reference to Fig. 3) Width.Described motor 15A and motor 15B can independently carry out drive controlling.The photographic paper P that extracts from paper magazine is when being transferred, because the unbalanced a variety of causes that waits of the crimping roller crimp force on the Width is carried with the state of skew.Form because in a single day described skew carries out image under the state that photographic paper P tilts, can cause the low image quality of photo prints.Therefore, by separate drive motor 15A, 15B, promptly by changing drive amount separately, skew that can the revisal photographic paper P.Constitute according to this, can return to photographic paper P and carry out image under the state of normal posture and form.
62 storages of compensating value storage part change motor 15A, the required compensating value of 15B drive amount.Along with the difference of the width dimensions of photographic paper P, surface quality, manufacturer etc., compensating value is also inequality.Therefore, try to achieve the compensating value of relevant different photographic paper P and be kept in the compensating value storage part 62 to print test in advance to good.
Camera obscura test section 63 detects the photographic paper P information that is contained among the paper magazine M that is mounted.For example, on paper magazine M, bar code is set, and can obtains the information of photographic paper P (printing paper width, surface quality, manufacturer's title etc.) by reading this bar code.
The data of the stamp with the size of photo prints are set in stamp with the size configuration part 64.According to cut-out of the Data Control photographic paper P of described stamp with the size etc.
Operational throughput test section 65 detects the operational throughput of photographic paper P.For example, the umber of pulse by the scrambler (not shown) of calculating and motor or roller interlock is exported can detect operational throughput.Perhaps, by the number of drive pulses that provides to motor (for example, stepping motor) is provided, can detect operational throughput.Therefore, can utilize described umber of pulse to define the compensating value that is stored in the compensating value storage part 62.When utilizing light sensors to go out the front end of photographic paper P, the front end present located position that can calculate photographic paper P by the described umber of pulse of calculating at that time.
Imaging control part 66 is controlled to the various operations of the C of picture portion, promptly laser aid 24, the first exposure conveying roller 20 and the second exposure conveying roller 21 is controlled.In case exposure beginning sensor 23 detects the front end of photographic paper P, 66 of imaging control parts utilize laser aid 24 to be controlled to the picture start time.And, detect the operational throughput that begins the photographic paper P till the position of exposing from the front end that detects photographic paper P by operational throughput test section 65.Simultaneously, imaging control part 66 is also controlled the driving start time of exposure conveying roller 20,21 or the time of releasing crimping etc.
The driving of roller 5 behind Tool Control portion 67 control cutter 4, cutter preliminary roller 2 and the cutters.The photographic paper delivering amount of carrying, be set in the stamp with the size data in the stamp with the size configuration part 64 according to the front end that utilizes phase paper sensor 3 detected photographic paper P, from operational throughput test section 65, can controlling and driving and moment etc. of stopping the moment of each roller 2,5 and starting cutter 4.
68 controls of camera obscura control part are extracted photographic paper P or are selected to switch two operations such as paper magazine M from paper magazine M.Turn to control part 69 control to be located at the conversion roller 30 among the D of turning part and the driving of take up roll 31.The length of photographic paper P throughput direction is then utilized conversion roller 30 during less than setting, and the length of photographic paper P throughput direction is then utilized take up roll 31 during greater than setting, and photographic paper P is sent to development treatment portion 40.Obtain the data of the length data of photographic paper P throughput direction in being set in stamp with the size configuration part 64.
Utilize hardware (as CPU, storer, operation circuit etc.) and software (as control program etc.) can construct every function shown in Figure 4.
[about the revisal skew]
When paper magazine M extracted photographic paper P and carry, printing paper was provided with guidance device in the Width both sides, but owing in reasons such as the crimp force of Width are inhomogeneous, can cause photographic paper P to be transferred under the state that skew takes place.If on the photographic paper P of described run-off the straight, form image, can cause the low image quality of photo prints.So, advanced line displacement revisal to carry out imaging processing then.
(1) when photographic paper P is in the state that does not have to tilt, make the 15A of left and right sides motor, 15B drive amount identical, then can under this state, provide photographic paper P to the C of imaging portion.
When (2) under the state that causes the printing paper run-off the straight owing to crooked conveying, accepting photographic paper P, carry out offset compensation, can remove heeling condition by the 15A, the 15B drive amount that change left and right sides motor.For example, by the drive amount of sinistral motor 15A being set for drive amount greater than dextral motor 15B, can revisal inclination to the left.Carrying out offset compensation at fixture unit 10 when transmission position P2 moves gets final product.The method of revisal skew is not limited only to this.
[about forming ring]
If carry photographic paper P to carry out exposure-processed on one side with constant speed on one side at the C of imaging portion, just can guarantee to obtain images with high image quality.But if photographic paper P is very long in the length of throughput direction, thereby other locational vibrations can have influence on the image that the C of imaging portion causes printing and have ribbon grain.Therefore, in the C of imaging portion, keep stationary state or constant speed, be necessary to prevent the generation of described vibration in order to guarantee photographic paper P.In addition, if keep the two ends of photographic paper P, then photographic paper P can produce stress and bring influence for whole photographic paper P when carrying.When carrying photographic paper P, alleviate described stress to preposition roller 1 by form ring in photographic paper delivering unit, roller 5 behind cutter preliminary roller 2 or the cutter, the influence that the transporting velocity of exposure conveying roller 20,21 and conversion roller 30 is brought, and prevent to produce ribbon grain.Form the function of ring according to Fig. 5 A～5F explanation below.
(1) with the front end of photographic paper P from accepting position P1 when transmitting position P2 and carry, shown in 5A, what fixture unit 10 left upstream side accepts position P1, the first ring limited part 52 of being pushed to the top by fixture unit 10 shown in 5B, can gently be pressed onto photographic paper P above.At this moment, if the translational speed of fixture unit 10 is lower than the transporting velocity of roller 5 behind preposition roller 1, cutter preliminary roller 2 or the cutter, then on photographic paper P, form in the ring, have below the ring that forms on the photographic paper P of rigidity can be limited to by the first ring limited part 52.Under this state, fixture unit 10 is near transmitting position P2, and then shown in 5C, the second ring limited part 53 is pushed to the top by fixture unit 10.
(2) when fixture unit 10 from transmitting position P2 when accepting position P1 and move, shown in 5C, fixture unit 10 leaves the transmission position P2 of upstream side, the second ring limited part 53 of being pushed to the top by fixture unit 10 shown in 5D, can gently be pressed onto photographic paper P above.At this moment, because fixture unit 10 is removed clamp position, the ring that forms on the photographic paper P can be limited to the below by the second ring limited part 53.Under this state, fixture unit 10 is near accepting position P1, and shown in 5E, the first ring limited part 52 is pushed to the top by fixture unit 10.
(3) with the rear end of photographic paper P from accepting position P1 when transmitting position P2 and carry, shown in 5D, the rear end that forms ring and photographic paper P in photographic paper P downwards is under by the state of anchor clamps roller 11 (with reference to Fig. 1 and Fig. 2) holding, and fixture unit 10 moves to transmitting position P2 from accepting position P1.When fixture unit 10 leave upstream side accept position P1 the time, by fixture unit 10 push to the top the first ring limited part 52 can be positioned at the below.When fixture unit 10 when transmitting position P2, shown in 5F, the second ring limited part 53 is pushed to the top by fixture unit 10, ring diminishes gradually, when fixture unit 10 arrives when transmitting position P2, ring will disappear.
[explanations of various transport models]
Below, be described in detail in the image processing system of Fig. 1～4 explanation, accept the operation of photographic paper P till provide photographic paper P from the A of supply department to the C of imaging portion.Here, the length according to the photographic paper P throughput direction is divided into four kinds of transport models to the conveying operation.Below, the operation that forms device 60c according to transport model setting device 60b and ring illustrates four kinds of transport models successively.
[first transport model]
The operation of the image processing system of (first pattern) when being 150mm～183mm according to the length of the flowchart text photographic paper P throughput direction of the service chart of Fig. 6 A～6D and Fig. 7.
In Fig. 6 A, in order to accept photographic paper P from the A of printing paper supply department, fixture unit 10 waits is accepting position P1.At this moment, anchor clamps roller 10 is in the state of removing crimping.At first extract photographic paper P and begin to carry (S1) from paper magazine M.Here, Fig. 6 A represents that the position CP with cutter 4 is the length of the photographic paper P of benchmark.Promptly when the length of photographic paper P is 150mm, if be benchmark with the position CP of cutter 4, the front end of photographic paper P then is positioned at the inside of lateral paper guide 12.When the length of photographic paper P was 183mm, the front end of photographic paper P then was positioned at the front end position much at one with lateral paper guide 12.With tool position CP is benchmark, after operational throughput reaches feeding length (corresponding with stamp with the size), stops to carry photographic paper P (S2).
Next, the rear end (S3) that utilizes cutter 4 to cut off photographic paper P is transported to assigned position (S4) to photographic paper P by roller behind the cutter 5 afterwards.At this, so-called assigned position can be different because of the difference of feeding length, and this position is meant by anchor clamps roller 11 position of clamping photographic paper P front end really.And, about described assigned position, can carry out suitable regulation to it, also can be set at and the irrelevant fixed value of the feeding length of photographic paper P.
In case photographic paper P is transported to assigned position, 11 on anchor clamps roller switches to crimped status (S5).In view of the above, finished the preparation of mobile fixture unit 10, therefore driven travelling belt 13 and move fixture unit 10 (S6) to transmitting position P2.At this moment, photographic paper P is transferred under the state that its front end is held.And when the feeding length of photographic paper P was 150mm, photographic paper P was cut off the back and is carried out crimping by anchor clamps roller 11, and can begin moving of fixture unit 10 immediately.
Fig. 6 C represents the state that fixture unit 10 arrives when transmitting position P2.During by fixture unit 10 conveying photographic paper P, carry out offset compensation (S7).Particularly, as described in Fig. 5 A～5F, change the drive amount of the first motor 15A and the second motor 15B.For example, begin to drive the first motor 15A and the second motor 15B simultaneously, and after transmitting position P2 and stopping the second motor 15B earlier, only with the first motor 15A drive amount that drive corresponding to compensating value more, skew that can the revisal photographic paper P.If utilize this method, the then terminal stage revisal skew that is utilizing fixture unit 10 to carry.
In case finish offset compensation, fixture unit 10 promptly can stop (S8), and 11 on anchor clamps roller can drive and send the photographic paper P (S9) of clamping.Meanwhile, exposure conveying roller 20,21 begins rotation (S10).But, be in the state that is disengaged at the crimping roller of this stage exposure conveying roller 20,21.In case send photographic paper P, then detect the front end of photographic paper P by exposure beginning sensor 23.According to this formation, can detect photographic paper P and be transported to.In case detect the position that photographic paper P has been transported to the first exposure conveying roller 20, then by the first exposure conveying roller, 20 crimping photographic paper P (S11).Phase interlock therewith, the crimped status of anchor clamps roller 11 is disengaged (S12).
Utilize 20 one-tenth crimped status of exposure conveying roller, begin the exposure conveying and carry out image to form (S13, S14).The photographic paper P of having finished image formation is sent to development treatment portion 40 via turning part D and carries out development treatment, and then finishes photo prints.
According to above-mentioned formation, offset compensation is under the state by anchor clamps roller 11 clamping photographic paper P, the inclination of revisal photographic paper P.Simultaneously, be held only for the front end of photographic paper P.Therefore, when carrying out offset compensation, have only the holding force of niproll 11 to act on photographic paper P, thereby can under the state that can not apply excessive power, carry out offset compensation photographic paper P.Simultaneously, because be to provide photographic paper P to the C of imaging portion finishing under the state of offset compensation, form so can carry out image with correct attitude.And, in forming, image can not apply excessive power to photographic paper P yet, therefore the problem of fold also can not take place.
[second transport model]
The operation of the image processing system of (second pattern) during greater than 183mm and smaller or equal to 409mm according to the length of the flowchart text photographic paper P throughput direction of the service chart of Fig. 8 A～8D and Fig. 9.Here, mainly describe to attach most importance to the difference of first pattern.
At first, shown in Fig. 8 A, pass through cutter 4 positions, directly be sent to the assigned position in (S31) fixture unit 10 from the photographic paper P that paper magazine M is extracted.After this, in case stop to carry photographic paper P, then by the front end (S32) of anchor clamps roller 11 clamping photographic paper P.At this moment, the back-end location of the photographic paper P of need the cutting off position of no show cutter 4 still.Therefore, begin mobile fixture unit 10, continue to carry photographic paper P.During fixture unit 10 moved, roller 5 grades also continued rotation behind the cutter of printing paper supply department.
In case the back-end location of the photographic paper P of need cutting off arrives the position of cutter 4, when fixture unit 10 stops to move, roller 5 also stop the rotation (S34, with reference to Fig. 8 B) behind the cutter.At this moment, even the feeding length of photographic paper P is 409mm, fixture unit 10 also no show still transmits position P2.Next, under the state that fixture unit 10 stops, cutting off the rear end (S35) of photographic paper P.The position that fixture unit 10 stops halfway is according to the difference of the feeding length of photographic paper P and difference.
After cutting off photographic paper P, restart mobile fixture unit 10 (S36), the rear end of cut photographic paper P roller 5 behind the cutter breaks away from (S37).So shown in Fig. 8 C, the rear end of photographic paper P is sagging state because of gravity.Afterwards, carry out the offset compensation (S38) of photographic paper P.Because the sagging of photographic paper P is to be created in photographic paper P to be sent to before the C of imaging portion, the impact meeting when therefore sagging is calmed down before image forms, thereby can not form harmful effects (with reference to Fig. 8 D) such as bringing fold to image.Step S39, S40, S41, S42, S43, S44 are identical with the step S8 that illustrates in first pattern～S14 respectively with, S45.
Feeding length about photographic paper P shown in Fig. 8 C is the occasion of 183mm and 409mm.Even the feeding length of photographic paper P is the occasion of 409mm, photographic paper delivering unit B still has the space that can hold sagging printing paper rear end.
[the 3rd transport model]
According to the length of the flowchart text photographic paper P throughput direction of the service chart of Figure 10 A～10F and Figure 11 is the operation of the image processing system of (three-mode) during greater than 409mm and smaller or equal to 594mm.Here, mainly describe to attach most importance to the difference of first pattern and second pattern.
Step S51S52 and S53 and step S31～S33 in second pattern be identical (with reference to Figure 10 A) respectively.Next, as the occasion of second pattern, the fixture unit 10 of clamping photographic paper P stops (S54, with reference to Figure 10 B) at the upstream side that transmits position P2.Here, described stop position can be decided to be the fixed position.After stopping fixture unit 10, roller 5, cutter preliminary roller 2 and preposition roller 1 etc. still continue rotation (S55) behind the cutter.According to this formation, photographic paper P is lax downwards to form ring R (S56, with reference to Figure 10 C).And, because the effect of the first ring limited part 52 forcibly forms ring R downwards.The conveyor surface of photographic paper delivering unit B below is guaranteed to be useful on and is held the necessary space of ring R.
Form ring R gradually and arrive the position of cutter 4, stop roller 5 (S57) behind the cutter, the rear end (S58) that cuts off photographic paper P when the rear end of photographic paper P.After cutting off printing paper, drive roller 5 (S59) behind the cutter again, the rear end of photographic paper P then behind the cutter roller 5 break away from (S60), and shown in Figure 10 D, the rear end of photographic paper P is sagging because of gravity.Even the feeding length of photographic paper P is the occasion of 594mm, photographic paper delivering unit B still has the space that can hold sagging printing paper rear end.
Next, restart mobile fixture unit 10, carry out offset compensation (S61, S62).The step S8 that illustrates in step S63, S64, S65, S66, S67, S68 and S69 and first pattern～S14 is identical (with reference to Figure 10 E and 10F) respectively.Because the sagging of photographic paper P is to be created in photographic paper P to be sent to before the C of imaging portion, therefore can not form harmful effects such as bringing fold to image.
[the 4th transport model]
The conveying of the image processing system of (four-mode) during greater than 594mm according to the length of the flowchart text photographic paper P throughput direction of the conveying figure of Figure 12 A～12J and Figure 13.Here, main to attach most importance to and to describe with the first pattern～difference of three-mode.Four-mode is applicable to that the printing paper feeding length surpasses when printing paper feeding length setting device 60d sets length, even also cut off the printing paper rear end in the middle of the imaging, and the rearward end after the conveying cut-out.
Step S71, S72 and S73 and step S31, S32 in second pattern and S33 be identical (with reference to Figure 12 A) respectively.Next, the same with three-mode with second pattern, the fixture unit 10 of clamping photographic paper P stops (S74, with reference to Figure 12 B) at the upstream side that transmits position P2.Described stop position can be decided to be the fixed position as three-mode.And, form ring R (S75, S76 are with reference to Figure 12 C) as roller 5 grades behind the three-mode continuation rotary cutter.At this moment, because the effect of the first ring limited part 52 forms ring R forcibly downwards.
In case form the ring R of ormal weight, stop the drive system (S77) of roller 5 A of supply department such as printing paper such as grade behind the cutter.Next, mobile fixture unit 10 carries out offset compensation (S78, S79).That is, offset compensation after forming, ring R is carried out.
According to this formation, owing to formed ring R, therefore in offset compensation, even photographic paper P tilts also can prevent influence that photographic paper P integral body is brought.That is to say, though when carrying out offset compensation the printing paper rear end be not cut off as yet and be in by cutter after the state of constraint such as roller 5 owing to be formed with ring R, therefore can prevent from printing paper integral body is applied excessive power.
When fixture unit 10 arrives when transmitting position P2, just stop it and move (S80, with reference to Figure 12 D).Next, rotation drives anchor clamps roller 11, and the front end (S81) of photographic paper P is provided to the C of imaging portion.Carrying out the exposure of the rotation simultaneously or almost simultaneously conveying roller 20 (S82) of this operation.In case the front end of photographic paper P arrives the position of the first exposure conveying roller 20, then utilize the front end (S83) of the first exposure conveying roller, 20 crimping photographic paper P.At this moment, because cutter drum 5 grades of photographic paper P rear end have stopped, so ring R diminish gradually (with reference to Figure 12 E).After the first exposure conveying roller, 20 crimping photographic paper P, temporarily stop the first exposure conveying roller 20.
Next, remove the crimped status (S84) of anchor clamps roller 11, fixture unit 10 returns (S85 is with reference to Figure 12 F) from transmitting position P2 to accepting position P1.At this moment, though, add that this moment, ring R diminished on one side between the anchor clamps roller, therefore can not apply big load to photographic paper P owing to removed crimped status on one side fixture unit 10 is to return in the conveying photographic paper P.
Get back to when accepting position P1 when fixture unit 10, restart to drive roller 5 grades (S86) behind the cutter of the A of printing paper supply department.At this moment, because the first exposure conveying roller 20 is in halted state, so form ring (S87, with reference to Figure 12 G) in the downstream of fixture unit 10.At this moment, the crimping of anchor clamps roller 11 still is in the state that is disengaged.And, because the effect of the first ring limited part 53, guarantee below form ring R.
In case form the ring of ormal weight, just begin rotation exposure conveying roller 20,21 (S88).Begin thus photographic paper P is formed image (with reference to Figure 12 H).Continue behind the rotary cutter roller 5 etc., and arrive the position of cutter 4, just stop the rotation of roller 5 grades behind the cutter when the rear end of photographic paper P.And, the rear end of anchor clamps roller 11 crimping photographic paper P and the rear end (S89, S90) that cuts off photographic paper P.Also rotate exposure conveying roller 20,21 during the cut-out photographic paper P and proceed image formation, but the ring R that forms diminishes gradually.Because be formed with ring R, so the impact when cutting off photographic paper P can not be delivered to the C of imaging portion.Therefore, though the long photographic paper P of delivered length, thus can not occur the problem that image quality reduces taking place because of phenomenons such as fold yet.
Cut off after the photographic paper P, fixture unit 10 moves (S91) to the C of imaging portion direction again.Therefore, on one side when the C of imaging portion carries out image formation, Yi Bian under the state that supports the photographic paper P rear ends by fixture unit 11, carry photographic paper P.At this moment, form circlet circle R (with reference to Figure 12 I) in the downstream of fixture unit 10.By suitably setting the expose transporting velocity of conveying roller 20,21 and the translational speed of fixture unit 10, can avoid taking place phenomenons such as fold.
When fixture unit 10 begins to move and the rear end of photographic paper P roller 5 behind the cutter breaks away from roller 5 behind the cutter that just stops the rotation.Simultaneously, also remove the crimping (S92) of anchor clamps roller 11.Here will be owing to the load of the duty ratio photographic paper P of the rear end of photographic paper P is little, situation of movement describes under the crimped status so remove.And can under crimped status, seize on both sides by the arms and move simultaneously.Transmit position P2 (S93) in case fixture unit 10 arrives, fixture unit 10 just stops and being continued to carry photographic paper P by exposure conveying roller 20,21, carries out image and forms (with reference to Figure 12 J).Because mobile fixture unit 10 under the state of removing crimping roller 11 crimping, so fixture unit has the sagging function in rear end that supports and prevent photographic paper P.Therefore, during carrying printing paper by exposure conveying roller 20,21 and carrying out that image forms, can not apply excessive power to photographic paper P.
[operation of turning part D]
Photographic paper P behind the formation image is sent to development treatment portion 40 via turning part D.The following describes the operation in the D of turning part.
Figure 14 A～14C shows the feeding length operation in short-term of photographic paper P, at this moment, utilizes conversion roller 30 to discharge photographic paper P.Shown in Figure 14 A, crimping roller 30b removes to the crimping of driven roller 30a, and the photographic paper P of having exposed enters between driven roller 30a and the crimping roller 30b.In case photographic paper P enters into assigned position, connect photographic paper P by each roll-in as shown in Figure 14B, and shown in Figure 14 C half-twist.Thus, change photographic paper P emulsion side N towards.Afterwards, carry photographic paper P by conversion roller 30 to development treatment portion 40.
When the feeding length of photographic paper P was longer than setting, shown in Figure 15 A, take up roll 31 utilized compression joint mechanism not shown in the figures part in the length of its photographic paper P of reeling on every side.Simultaneously, the photographic paper P Yi Bian take up roll 31 is reeled is Yi Bian move to oblique below shown in Figure 15 B.Among Figure 15 C, be wound on the periphery wiring of the photographic paper P on the take up roll 31, with consistent to the transport path of development treatment portion 40.In case be wound up into this state, conversion roller 30 is promptly carried photographic paper P to development treatment portion 40.With this, change photographic paper P emulsion side N towards.According to above-mentioned formation, can under normal state, carry out the development treatment of development treatment portion 40.
[other embodiment of anchor clamps roller]
Utilize Figure 16 that other embodiment of the anchor clamps roller 11 of clamping photographic paper P is described below.In above-mentioned example, the width of anchor clamps roller 11 be arranged to be slightly larger than image processing system the breadth extreme of treatable photographic paper P, its outside dimension is fixed on Width.But the present invention not only is confined to this, and shown in Figure 16 A, the width of anchor clamps roller 11 also can be arranged to be slightly less than the width of photographic paper P.Simultaneously, shown in Figure 16 B, also can on Width, be divided into a plurality of roller segments.Anchor clamps roller 11 is made of driven roller 11a and crimping roller 11b, and the roller of any one party or both sides' roller can both be arranged to above-mentioned formation.
The width dimensions of photographic paper P is varied, but any occasion is all at width gamut or the front end of gamut clamping photographic paper P roughly.Under this state, not only can rotate the front end of photographic paper P, and the integral body that can rotate photographic paper P comes the revisal skew, therefore can not apply excessive power to photographic paper P, can not form fold yet.
Figure 16 C is the synoptic diagram of another enforcement state of anchor clamps roller 11, is provided with to make photographic paper P comprise that anchor clamps roller 11 can be around the mechanism of regulation axle center X rotation.For example, be provided for rotating the definite-purpose motor of photographic paper P.Constitute according to this, can carry out the offset compensation that the revisal photographic paper P tilts.At this moment, set the drive amount of left and right sides motor 15A, 15B for unanimity.When carrying out offset compensation, can arrive any degree by the rotation amount regulation revisal of definite-purpose motor.According to this program, can successfully carry out offset compensation.
Simultaneously, make photographic paper P can center on the mechanism that axle center X rotates by setting, when changing the drive amount of left and right sides motor 15A, 15B, also can successfully mobile photographic paper P.
(the second enforcement state)
Implement on the basis of state first, the second enforcement state is provided with transporting velocity setting device 60e at control part 60 as shown in figure 18.Transporting velocity setting device 60e sets the transporting velocity of required photographic paper P of when picture and the translational speed of fixture unit 10 for according to stamp with the size, and determines transport model described later (the 3rd and four-mode) thus.When being formed with ring on the imaging medium, the transporting velocity that is positioned at the image forming medium of ring front (front end) can be different with the transporting velocity of the image forming medium that is positioned at ring back (rear end).When not indicating especially, the transporting velocity of so-called photographic paper P is meant the transporting velocity by the printing paper integral body of the speed representative of printing paper front end.The speed of the delivery phase that the transporting velocity of printing paper is determined by preposition roller 1 and cutter preliminary roller 2, the speed of the delivery phase that is determined by roller behind the cutter 5, the speed of the delivery phase that is determined by exposure conveying roller 20,21 is determined.When the transporting velocity of control photographic paper P, the signal that sends with operational throughput test section 65 is a benchmark, begins signal that sensor 23 the sent reference index as control to be located near the phase paper sensor 3 cutter preliminary roller 2 downstreams and to be located at the exposure of transmitting P2 downstream, position.
The program setting of the transporting velocity of control photographic paper P is, (1) drives the preposition roller 1 of control earlier, (2) then by roller 5 behind Tool Control portion 67 drive controlling cutter preliminary rollers 2 and the cutter, (3) by anchor clamps control part 61 drive controlling fixture units 10 (being specially the control first motor 15A and the second motor 15B), (4) are again by imaging control part 66 drive controlling exposure conveying roller 20,21.
If the picture size of printing is in normal range, then because photographic paper delivering unit B has the effect of printing paper accommodation section, so also can carry out imaging processing behind the rear end that cuts off medium even the phase paper size is big.If do not need to form ring, the transporting velocity of photographic paper P forms ring if desired at cutter preliminary roller 2 places and in all unanimities of conveying roller 20,21 places of exposing, and then sets the transporting velocity of upstream side for be lower than the downstream transporting velocity and gets final product.If need to eliminate ring, then the transporting velocity of upstream side is set the transporting velocity that is higher than the downstream for and is got final product.
Yet when very big, the limited spatial accommodation in the medium transport portion can't hold whole printing paper as phase paper sizes such as print ad images.At this moment, under the state of the transporting velocity of keeping exposure conveying roller 20,21 places, before the rear end that cuts off photographic paper P, strengthen the transporting velocity of cutter preliminary roller 2 so that form ring, after the rear end that cuts off photographic paper P, strengthen the transporting velocity of carrying the photographic paper P rear end by fixture unit 10.By above-mentioned control, even in the imaging processing process, also can cut off the rear end of photographic paper P, and in the rear end of carrying the photographic paper P after cutting off under the not vibrative state.
As mentioned above, by carrying the transporting velocity of photographic paper P rear end and the transporting velocity of photographic paper P front end to be set at different value, can provide a kind of image processing system of selecting suitable running program according to the data in the picture size configuration part 64 by transporting velocity setting device 60e by fixture unit 10.
In addition, after forming ring, by transporting velocity setting device 60e the translational speed of fixture unit 10 is set at the transporting velocity that is lower than photographic paper P, so that select suitable running program according to picture size.
When the three-mode of implementing state with this is carried, not only can form ring by stopping fixture unit 10, also can be in the moving process of fixture unit 10, by transporting velocity setting device 60e the translational speed of fixture unit 10 is set at the transporting velocity that is lower than by the printing paper that rotation determined of roller behind the cutter 5, cutter preliminary roller 2 or preposition roller 1 and forms ring.By this control, can improve transfer efficiency.
When the four-mode of implementing state with this is carried, in the imaging processing process, the translational speed of fixture unit 10 is set at the transporting velocity that is lower than printing paper, so that in the rear end of carrying the photographic paper P after cutting off under the not vibrative state in the rear end of photographic paper P by transporting velocity setting device 60e.
In addition, implement in the 3rd and the four-mode of state, can utilize the rear end of the photographic paper P after fixture unit 10 holdings will be cut off and carry at this.Specifically, shown in Figure 19 A, the front end of photographic paper P by the state of the first exposure conveying roller, 20 crimping under, fixture unit 10 sent back to accepts to form ring behind the P1 of position.At this moment, suppose to be set at ST1 in the transporting velocity at printing paper supply unit A place, transporting velocity (translational speed of fixture unit) at photographic paper delivering unit B place is set at ST2, transporting velocity at imaging portion C place is set at ST3, control STI〉ST3 (or ST3=0), ST2=0, and the rear end that behind the ring that forms ormal weight, cuts off photographic paper P.At this moment, before the ring that forms ormal weight, do not carry out imaging processing at the C of imaging portion.
The rear end of the photographic paper P after the cut-out by the state of anchor clamps roller 11 holdings under mobile fixture unit 10 (shown in Figure 19 B, 19C).At this moment, when the C of imaging portion carried out imaging processing, 60e was set at ST3 by the transporting velocity setting device〉ST2, thus can be when dwindling ring gradually shift to fixture unit 10 and transmit position P2.In this process, set up following formula: S2T/ST3=(length of photographic paper delivering unit B)/(forming the length of the photographic paper P of ring) substantially, can pass through this formula drive controlling exposure conveying roller 20,21, and the translational speed of setting clamp unit 10.And place photographic paper P under because of the crimped status of removing each roller, so the load can not be in crimped status the time at anchor clamps roller 11 places.
Afterwards, fixture unit 10 moves to and transmits position P2 and transmit printing paper (shown in Figure 19 D) to the C of imaging portion.The line displacement revisal that stops to go forward side by side of the upstream side of fixture unit 10 before arrive transmitting position P2 gets final product.
As mentioned above, the transporting velocity ST3 that the translational speed ST2 of fixture unit 10 is set at printing paper is eliminated ring, can improve transfer efficiency by transporting velocity setting device 60e.
(the 3rd enforcement state)
Can also have the function that medium transport portion is sent back at the transporting velocity setting device 60e described in the second enforcement state.At this moment, can be different in the transporting velocity of printing paper supply unit A and the C of imaging portion.When not indicating especially, the transporting velocity of so-called photographic paper P is meant the transporting velocity by the printing paper integral body of the speed representative of printing paper front end.
(medium transport portion sends function back to)
In this enforcement state, the speed when sending fixture unit 10 back to by control can shorten conveying program when obtaining high resolution image.When fixture unit 10 moves to when accepting position P1 from transmitting position P2, fixture unit 10 carries the transporting velocity U1 of image forming medium to be set to translational speed U2 greater than fixture unit 10 to medium transport portion downstream.By this control, can prevent from when the C of imaging portion carries out imaging processing, to pull photographic paper P, so can print the image that does not have ribbon grain.Utilize Figure 20 A～D to describe below.
At the state shown in Figure 20 A be, thereby the front end of photographic paper P is delivered to fixture unit 10 that the C of imaging portion finishes transmission procedure to be positioned at and to transmit position P2, and the state shown in Figure 20 D is, fixture unit 10 is sent back to the state of accepting position P1, with to described control of sending back in the process, two kinds of transporting velocity control methods are described.
First kind of control method be, the transporting velocity U1 of image forming medium is controlled to translational speed U2 greater than fixture unit 10.This state is meant, will be set at identical value U1 in the transporting velocity of printing paper supply unit A and the transporting velocity of the C of imaging portion, or will be set in the transporting velocity of printing paper supply unit A and be higher than a little in the transporting velocity of the C of imaging portion but be unlikely to form the state of ring.Above-mentioned control is applicable to the situation that stamp with the size is bigger, can prevent to be subjected to the influence of photographic paper P conveyance direction downstream side and can to shorten handling procedure at the C of imaging portion.
Second kind of control method be, Yi Bian form ring, Yi Bian the transporting velocity U1 of image forming medium is controlled to translational speed U2 greater than fixture unit 10.At this moment, in the state shown in Figure 20 A, drive exposure conveying roller 20,21, will be set at U3 in the transporting velocity of the C of imaging portion.And by driving the transporting velocity that roller 5 behind preposition roller 1, cutter preliminary roller 2 or the cutter is set in printing paper supply unit A is U1, and by driving the translational speed U2 that the first not shown motor 15A and the second motor 15B come setting clamp unit 10.At this moment, by each speed setting is become U1〉U2 or U1〉U3, shown in Figure 20 B, can between transmission position P2 and fixture unit 10, form ring.Figure 20 C represents the state after above-mentioned state further develops.Formed ring is positioned at the below by 53 restrictions of the second ring limited part.For this reason, the C of imaging portion stablizes exposure not vibrated etc. under the state that influences.Figure 20 D represents the state that fixture unit 10 arrives when accepting position P1.When the quantity delivered of printing paper supply unit A reaches ormal weight, stop to drive roller 5 behind preposition roller 1, cutter preliminary roller 2 or the cutter, the rear end that cuts off photographic paper P with cutter 4.Along with the imaging processing of carrying out successively at the C of imaging portion, ring also diminishes gradually, finishes an imaging processing program when the rear end of photographic paper P arrives the imaging C of portion.
[the 4th transport model]
The conveying of the image processing system of (four-mode) during greater than 594mm according to the length of the flowchart text photographic paper P throughput direction of the conveying figure of Figure 12 A～12E, Figure 21 A～21E and Figure 22.Here, the feed status of first pattern～three-mode is identical with the first and second enforcement state.The feeding length that is primarily aimed at image forming medium here surpasses the setting that feeding length setting device 60d sets, and cuts off the rear end of photographic paper P and carry in imaging process.In addition, the translational speed in the time of will sending fixture unit 10 back to by transporting velocity setting device 60e is controlled to littler than the transporting velocity of printing paper, can prevent to carry under the state that photographic paper P is increased load or vibration the rear end of photographic paper P thus.
The program identical (with reference to Figure 12 A) of the program of S101, S102 and S103 and S31～S33 in second pattern.The fixture unit 10 of clamping photographic paper P stops (S104, with reference to Figure 12 B) at the upstream side that transmits position P2.Described stop position can be decided to be the fixed position with three-mode.And, form ring R (S105, S106 are with reference to Figure 12 C) as roller 5 grades behind the three-mode continuation rotary cutter.At this moment, because the effect of the first ring limited part 52 forms ring forcibly downwards.
After forming the ring R of ormal weight, stop the drive system (S107) of roller 5 A of supply department such as printing paper such as grade behind the cutter.Next, mobile fixture unit 10 carries out offset compensation (S108, S109).That is, offset compensation after forming, ring R is carried out.According to this formation owing to formed ring R, even so in the offset compensation photographic paper P tilt, also can prevent the influence that photographic paper P integral body is brought.That is to say, though when carrying out offset compensation the printing paper rear end be not cut off as yet and be in by cutter after the state of constraint such as roller 5 owing to be formed with ring R, therefore can prevent from printing paper integral body is executed extra load.
Transmit position P2 when fixture unit 10 arrives, just stop it and move (S110, with reference to Figure 12 D).Next, rotation drives anchor clamps roller 11, and the front end (S111) of photographic paper P is provided to the C of imaging portion.When carrying out this operation, or almost roller 20 (S112) is sent in rotation exposure simultaneously.In case the front end of photographic paper P arrives the position of the first exposure conveying roller 20, then utilize the front end (S113) of the first exposure conveying roller, 20 crimping photographic paper P.At this moment, because cutter drum 5 grades of photographic paper P rear end have stopped, so ring R diminish gradually (with reference to Figure 12 E).After the first exposure conveying roller, 20 crimping photographic paper P, temporarily stop the first exposure conveying roller 20.
Next, under the crimped status (S114) of removing anchor clamps roller 11, fixture unit 10 returns (S115) from transmitting position P2 to accepting position P1.Simultaneously, restart to drive roller 5 grades (S116) behind the cutter of the A of printing paper supply department.At this moment, control fixture unit 10 is carried the translational speed (S117 of the transporting velocity of image forming medium greater than fixture unit 10 to the downstream of medium transport portion, with reference to Figure 21 A), can prevent that the C of imaging portion from pullling photographic paper P when carrying out imaging processing, so can print the image that does not have ribbon grain.In this process, though under the state that is provided with photographic paper P between fixture unit 10 and the anchor clamps roller 11 mobile fixture unit 10 because it is also less to have removed the size of crimped status and ring, thereby can not apply load to photographic paper P.
If proceed the conveying of photographic paper P and moving of fixture unit 10, then can form ring (S118 is with reference to Figure 21 B) in the downstream of fixture unit 10.At this moment, anchor clamps roller 11 still is in the releasing crimped status.Because the effect of the second ring limited part 53 still forms ring downwards.
When fixture unit 10 returns when accepting position P1, the first exposure conveying roller 20 is in halted state.After forming the ring of ormal weight, exposure conveying roller 20,21 begins rotation (S119).Thus, photographic paper P is carried out exposure-processed (with reference to Figure 21 C).Roller 5 also continues rotation behind the cutter, arrive the position of cutter 4 when the rear end of photographic paper P after, stop to drive roller 5 behind the cutter.Then by the rear end of anchor clamps roller 11 crimping photographic paper P, and the rear end (S120) that cuts off photographic paper P with cutter 4.When cutting off the rear end of photographic paper P, exposure conveying roller 20,21 continues rotation, the imaging processing of photographic paper P is also being carried out, but ring diminishes gradually.Because be formed with ring, cut off the vibration of the rear end of photographic paper P and can not pass to imaging portion.Therefore, even the very big image of stamp with the size can not reduce image quality because of ribbon grain occurring yet.
In the process of above-mentioned S114～S120, when returning, fixture unit 10 accepts position P1, and behind the ring of formation ormal weight, begun the rotation of exposure conveying roller 20,21, and photographic paper P has been carried out exposure-processed.But, if the size of photographic paper P is bigger, then can be omitted in the crimping of the exposure conveying roller among the S113 and the process that stops, returning when accepting position P1 the same with fixture unit 10, can can further shorten the time while forming the exposure conveying that ring carries out photographic paper P.
After cutting off the rear end of photographic paper P, fixture unit 10 moves (S121) to the C of imaging portion once more.That is, at imaging portion C carry out imaging processing on one side, on one side by the rear end of fixture unit 10 holding photographic paper P and carry.At this moment, form little ring R (with reference to Figure 21 D) in the downstream of fixture unit 10.Be positioned at the rotational speed of exposure conveying roller 20,21 of the C of imaging portion and the translational speed of fixture unit 10 by control, can be set in the appropriate value that ribbon grain do not occur.
When fixture unit 10 begins to move, the rear end of photographic paper P is left behind the cutter behind the roller 5, stops the rotation of roller 5 behind the cutter.And anchor clamps roller 11 is also removed crimped status (S122).In order further to alleviate the load that imposes on the photographic paper P rear end, the example of carrying the rear end of photographic paper P under the state of removing crimping has been described here.Certainly, under the state of the rear end of clamping photographic paper P, carry and also can.Transmit position P2 (S123) when fixture unit 10 arrives, then fixture unit 10 stops to move, and by rotation exposure conveying roller 20,21 photographic paper P is flowed to the C of imaging portion, proceeds imaging processing (with reference to Figure 21 E).Because mobile fixture unit 10 under the state of anchor clamps roller 11 releasing crimping is so fixture unit 10 has the support function that the photographic paper P of not making drops.So, even carry out on photographic paper P, can not applying extra load in the process of imaging processing at rotation exposure conveying roller 20,21.
(other enforcement states)
In this enforcement state, the image processing system that is provided with laser aid in the imaging portion has been described, and cited with the photo photosensitive material photographic paper P as the example of image forming medium, but the present invention is not limited only to this.Outside the laser aid, also can suitably utilize digital-code type exposure devices such as CRT device, PLZT device.
Simultaneously, when utilizing ink-jet printer that image processing system that image forms is carried out in the ink-jet of printing paper surface, also can use the present invention.

Claims (5)

1, a kind of image processing system is included in the imaging portion of the image forming surface of image forming medium, it is characterized in that, comprising:
Medium transport portion accepts the image forming medium supplied from image forming medium supply department in the position of accepting that is being positioned at image forming medium throughput direction upstream side, provides image forming medium in the transmission position that is positioned at the image forming medium conveyance direction downstream side to described imaging portion;
The feeding length setting device is used to set the feeding length of described image forming medium;
Cut-out portion is positioned at the described upstream side of accepting the position at throughput direction, is used for cutting off described image forming medium by any feeding length;
The medium maintaining body is located in the described medium transport portion, in the image forming medium course of conveying the gamut of medium transport Width or roughly gamut keep image forming medium;
Wherein,
When the feeding length setting value that is set by described feeding length setting device surpasses setting, in image forming course, cut off image forming medium according to described setting value by described cut-out portion;
Described medium transport portion will be transported to transmit to turn back to behind the position and accept the position from accepting the position by the front end of the image forming medium of described medium maintaining body clamping, and the rear end of the image forming medium after the cut-out that will be supported by described medium maintaining body is transported to and transmits the position from accepting the position again.
2, image processing system according to claim 1 is characterized in that:
Comprise that also ring forms device, medium transport portion from accept the position move to transmit the position during, make image forming medium form ring between position and the described transmission position described acceptance,
Form device by described ring and forming on the image forming medium under the state of ring, keep the rear end of image forming medium and carry by described medium maintaining body.
3, image processing system according to claim 1 is characterized in that:
Also comprise the transporting velocity setting device, be used to set the transporting velocity of described image forming medium;
When described feeding length setting value surpasses setting, set the transporting velocity of image forming medium front-end and back-end respectively by described transporting velocity setting device, make the image forming medium front end is transported to the speed of transmitting the position and the image forming medium rear end is transported to the speed of transmitting the position and is set to different value.
4, according to each described image processing system in the claim 1 to 3, it is characterized in that:
Described medium maintaining body is this front end of clamping when carrying the front end of image forming medium, this rear end of holding when carrying the rear end of image forming medium.
5, image processing system according to claim 3 is characterized in that:
When described medium transport portion moves to when accepting the position from transmitting the position, set the transporting velocity of image forming medium and the translational speed of medium transport portion respectively by described transporting velocity setting device, so that the translational speed of medium transport portion is less than the transporting velocity from the described medium transport portion image forming medium of side conveying downstream.
CNB2006101452586A 2005-11-25 2006-11-24 Image forming device Expired - Fee Related CN100492167C (en)

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JP2005339809A JP4618114B2 (en) 2005-11-25 2005-11-25 Image forming apparatus
JP2005339809 2005-11-25
JP2005349396 2005-12-02
JP2005349424 2005-12-02

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DE102014225206B4 (en) 2014-12-09 2019-09-05 Koenig & Bauer Ag Roller printing machine
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DE102014225210B4 (en) * 2014-12-09 2019-11-07 Koenig & Bauer Ag pressure unit
CN107379044A (en) * 2017-08-28 2017-11-24 南京泛太克文化产业发展有限公司 Printing paper guillotine and photographic paper production line

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US6240260B1 (en) * 1999-01-29 2001-05-29 Agfa Corporation Method and apparatus for buffer transfer of media sheets between components in an imagesetting system
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