CN106200326A - Image formation system - Google Patents

Image formation system Download PDF

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Publication number
CN106200326A
CN106200326A CN201510477569.1A CN201510477569A CN106200326A CN 106200326 A CN106200326 A CN 106200326A CN 201510477569 A CN201510477569 A CN 201510477569A CN 106200326 A CN106200326 A CN 106200326A
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China
Prior art keywords
image processing
processing system
image
continuous sheet
fixing
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CN201510477569.1A
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Chinese (zh)
Inventor
山田光介
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Fujifilm Business Innovation Corp
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Fuji Xerox Co Ltd
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Publication of CN106200326A publication Critical patent/CN106200326A/en
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Abstract

The present invention provides a kind of image formation system.The image formation system of the present invention has: multiple image processing systems, and it configures along the conveying direction of continuous sheet, and forms image on described continuous sheet;With multiple fixation units, it is separately positioned on the plurality of image processing system, the image being transferred on continuous sheet is carried out fixing, and the fixing temperature of described image processing system of this fixation unit upstream side of will be located in conveying direction along described continuous sheet is set to lower than the fixing temperature of the described image processing system being positioned at downstream.

Description

Image formation system
Technical field
The present invention relates to image formation system.
Background technology
In the past, as the technology relevant to image formation system, it has been proposed that such as Japanese Unexamined Patent Publication 2011-198174 Technology number described in publication, Japanese Unexamined Patent Publication 2012-108273 publication etc..
In Japanese Unexamined Patent Publication 2011-198174 publication, it is configured to have: the 1st printing equipment, it is at serialgram Print on material;2nd printing equipment, it is printed on continuous sheet after being printed by the 1st printing equipment;And with Stepization unit, it makes printing of described 1st printing equipment Tong Bu with the printing of described 2nd printing equipment.
In the image formation system of Japanese Unexamined Patent Publication 2012-108273 publication, arranged in series has multiple image to form dress Put, and on paper, carry out image formation by the plurality of image processing system, be configured in this image formation system, Have: the 1st image processing system and be configured in the downstream of sheet transport direction relative to the 1st image processing system The 2nd image processing system, the 1st image processing system has: the 1st image forming part, and it carries out figure on paper As being formed;With the 1st control portion, its by the 1st image processing system and the 2nd image processing system respectively at paper Not coplanar carry out image formation and fixing and carry out two sides printing serially concatenated output in the case of, fixing by the 1st The fixing target temperature in portion is set to that being used for individually carrying out image at the 1st image processing system is formed and fixing feelings 1st cardinal temperature of the fixing target temperature under condition is low.
Summary of the invention
It is an object of the invention to, and the fixing temperature in multiple image processing systems is set as mutually synthermal situation phase Relatively, there is position deviation in the image on suppression continuous sheet between multiple image processing systems.
The 1st scheme according to the present invention, a kind of image formation system, it is characterised in that have:
Multiple image processing systems, it configures along the conveying direction of continuous sheet, forms figure on described continuous sheet Picture;With
Multiple fixation units, it is separately positioned on the plurality of image processing system, to being transferred to described continuous sheet On image carry out fixing, and this fixation unit will be located in the upstream side of conveying direction along described continuous sheet The fixing temperature of described image processing system is set to the fixing temperature than the described image processing system being positioned at downstream Low.
The 2nd scheme according to the present invention, is positioned at the described image of the upstream side of conveying direction along described continuous sheet The fixing temperature forming device is lower 5 DEG C~50 DEG C than the fixing temperature of the described image processing system being positioned at downstream.
The 3rd scheme according to the present invention, the plurality of image processing system has: form yellow, magenta, bluish-green 1st image processing system of the image of normal complexion black and being formed beyond described yellow, magenta, aeruginous and black The 2nd image processing system of image of particular color, described 2nd image processing system is configured in along described company The upstream side of the conveying direction of continuous sheet material.
The 4th scheme according to the present invention, has: switch unit, and it is to which in the plurality of image processing system The upstream side that image processing system is positioned at along the conveying direction of described continuous sheet switches over;And setup unit, its According to the switching result of described switch unit, will be located in along described in the upstream side of the conveying direction of described continuous sheet The fixing temperature of image processing system is set to lower than the fixing temperature of the described image processing system being positioned at downstream.
The 5th scheme according to the present invention, is provided with delay portion, described delay between the plurality of image processing system Portion makes the described image processing system from upstream side be transported to the described serialgram of described image processing system in downstream Material is temporarily detained.
The 6th scheme according to the present invention, first stops described continuous sheet in the described image processing system of upstream side Conveying.
The 7th scheme according to the present invention, first starts described continuous sheet in the described image processing system of upstream side Conveying.
Invention effect
According to described 1st scheme, it is set as mutually synthermal situation with by the fixing temperature in multiple image processing systems Compare, can suppress the image on continuous sheet that position deviation occurs between multiple image processing systems.
According to described 2nd scheme, and will be located in the image processing system of the upstream side of the conveying direction along continuous sheet It is set as value less than 5 DEG C or more than 50 DEG C with the difference of the fixing temperature of the image processing system being positioned at downstream Situation compares, and can suppress the image on continuous sheet that position deviation occurs between multiple image processing systems.
According to described 3rd scheme, with the 1st image shape of the image by forming yellow, magenta, aeruginous and black The situation of the upstream side that one-tenth device is configured in the conveying direction along continuous sheet compares, and can improve yellow, product The fixation performance of the image of the particular color beyond redness, aeruginous and black.
Which according to described 4th scheme, with the image processing system not having in multiple image processing systems it is located along The situation of the switch unit that the upstream side of the conveying direction of continuous sheet switches over compares, and can improve multiple image Form the degree of freedom of the setting of device.
According to described 5th scheme, compared with the situation without the delay portion making continuous sheet temporarily be detained, permissible Reduce the loss of continuous sheet.
The feelings of the conveying according to the continuous sheet in described 6th scheme, with the image processing system the most first stopping upstream side Condition compares, it is possible to reduce the loss of continuous sheet.
The feelings of the conveying according to the continuous sheet in described 7th scheme, with the image processing system the most first starting upstream side Condition compares, it is possible to shortens image and forms the required time.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of the image formation system illustrating embodiments of the present invention 1.
Fig. 2 is the structure chart of the image forming part of the image processing system illustrating embodiments of the present invention 1.
Fig. 3 is the structure chart of the image forming part of the image processing system illustrating embodiments of the present invention 1.
Fig. 4 is the sectional structure chart illustrating continuous sheet.
Fig. 5 is the block diagram controlling device illustrating image formation system.
Fig. 6 is the sectional structure chart illustrating fixing device.
Fig. 7 is the general profile chart illustrating fixing band.
Fig. 8 is the plan structure figure of the partly cut-away illustrating fixing device.
Fig. 9 is the sectional structure chart illustrating fixing device.
Figure 10 is the curve chart of the shrinkage factor of the continuous sheet after the impressing portion being shown through fixing device.
Figure 11 is the curve chart of the fixing temperature illustrating the 1st and the 2nd fixing device.
Figure 12 is the overall structure figure of the image formation system illustrating embodiments of the present invention 2.
Figure 13 is the overall structure figure of the image formation system illustrating embodiments of the present invention 3.
Figure 14 is the sequential chart of the action of the fixing device in the image formation system illustrating embodiments of the present invention 3.
Figure 15 is the overall structure figure of the image formation system illustrating embodiments of the present invention 4.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of embodiments of the present invention.
[embodiment 1]
Fig. 1 to Fig. 3 illustrates the image formation system of embodiment 1.Fig. 1 illustrates the overall general of this image formation system , Fig. 2 and Fig. 3 amplifies and illustrates and want portion's (imaging device etc.) in this image formation system.
<overall structure of image formation system>
The image formation system 1 of embodiment 1 is the continuous of the long size of continuous print along the example as record medium Multiple (2 in illustrated example) the 1st and the 2nd image is formed dress by the record medium i.e. conveying direction of continuous sheet 6 The cascade system putting 2,3 arranged in series and constitute.1st and the 2nd image processing system 2,3 is along continuous sheet 6 Conveying direction, be configured with the 1st image processing system 2 at upstream side, be configured with in downstream the 2nd image formed dress Put 3.As continuous sheet 6, use the continuous sheet being made up of various materials.As the material of continuous sheet 6, Certainly the most much less common paper, can be enumerated, via bonding agent, peeling paper be attached to common paper or synthetic resin made membrane One side on and the so-called label paper that obtains or the various materials such as plastic thin film or paper.Continuous sheet is deposited Continuous sheet having following characteristic: according to its material or prolonged treatment etc. thing that continuous sheet 6 is implemented in advance First process, when heating fixing at conveying direction i.e. length direction or the width that intersects with conveying direction at least Carry out on the both sides of one direction or length direction and width deforming (mainly shrinking).
Image formation system 1 has: the 1st image processing system 2;2nd image processing system 3;Feedway 4, Its supply is as the continuous sheet 6 of an example of record medium;Retracting device 5, it reclaims (collecting) by the 1st He 2nd image processing system 2,3 is formed with the continuous sheet 6 of image;Conveyer device 9, it is arranged in the 1st image shape Become between device the 2 and the 2nd image processing system 3, carry continuous sheet 6;And controlling device 100, it controls 1st and the 2nd image processing system 2,3.Control device 100 direct with the 1st and the 2nd image processing system 2,3 Connect, or via the communication line being made up of LAN (Local Area Network, LAN) or the Internet etc. 7, mutually can lead to the 1st and the 2nd image processing system 2,3 and the master device 8 that is made up of personal computer etc. Letter ground connects.In addition it is shown that the image formation system 1 of illustrated example make the 1st and the 2nd image processing system 2,3, The situation that feedway 4, retracting device 5 and control device 100 are separately constructed, but it is not limited to this, it is possible to Such as feedway 4 to be arranged in the inside of the 1st image processing system 2, retracting device 5 is arranged in the 2nd The inside of image processing system 3, is arranged in the upper of the 1st or the 2nd image processing system 2,3 by controlling device 100 Portion etc..
1st and the 2nd image processing system 2,3, in addition to the color of the image formed, has substantially the same knot Structure.As depicted in figs. 1 and 2, the 2nd image processing system 3 be configured to be formed such as yellow (Y), magenta (M), The color printer of the image of aeruginous (C) and black (K).On the other hand, as shown in figures 1 and 3, 1 image processing system 2 be configured to be formed in common color printer use yellow (Y), magenta (M), Such as white (W), transparent (T) beyond aeruginous (C) and black (K), golden (G) and silver color (S) Deng the printer of particular color of image of particular color (also referred to as characteristic).Further, the 1st image processing system 2 can also except white (W), transparent (T), golden (G) and silver color (S) etc. particular color in addition to formation The image of its allochromatic colour.It addition, as particular color, be not limited to white (W), transparent (T), golden (G) With silver color (S) etc., it is also possible to be the metallochrome beyond golden (G) and silver color (S) or comprise foaming tune The color of toner etc..
1st image processing system 2 has the 1st image forming part 1061, the 1st image forming part 1061Based on work For using white (W), transparent (T), golden (G) and silver color (S) on continuous sheet 6 according to view data The toner of these 4 kinds of colors forms the electronic photo mode of an example of the image formation unit of image.Further, the 2nd Image processing system 3 has the 2nd image forming part 1062, the 2nd image forming part 1062Based on as according to figure Use on continuous sheet 6 as data yellow (Y), magenta (M), aeruginous (C) and black (K) this The toner of 4 kinds of colors forms the electronic photo mode of an example of the image formation unit of image.Master device 8 generates and makes By the most panchromatic and white (W), transparent (T), golden (G) and the picture number of the particular color of silver color (S) According to.Further, the 1st and the 2nd image forming part 1061、1062Have such as the following: multiple imaging devices 10, its shape Become to use the toner image constituting the toner of developer 4 and image;Intermediate transfer device 20, its keep respectively by Each imaging device 10 formed toner image and be finally transported to the secondary transfer printing wanting secondary transfer printing on continuous sheet 6 Position;And fixing device 40, it makes to have been carried out on the continuous sheet 6 of secondary transfer printing by intermediate transfer device 20 Toner image is fixing.
This image formation system 1 is such as adding the original image being provided with as inputting on continuous sheet 6 to be formed at Not shown image reading unit image read-out in the case of, be configured to color copy machine.Mark in figure Number 2a, 3a represent the housing of the 1st and the 2nd image processing system 2,3, and this housing 2a, 3a are by support structure portion Part, outer capping etc. are formed.
The imaging device 10 of the 1st image processing system 2 is by specifically created white (W) respectively, transparent (T), gold (G) constitute with 4 imaging devices 10W, 10T, 10G, 10S of silver color (S) these 4 kinds of color toner pictures. Here, use white (W) as the 1st particular color, use transparent (T) as the 2nd particular color, as the 3 particular colors use golden (G), use silver color (S) as the 4th particular color.These 4 imaging devices 10 (W, T, G, S) is configured to be arranged in the state of 1 row in the inner space of housing 1a.
On the other hand, the imaging device 10 of the 2nd image processing system 3 is by specifically created yellow (Y) respectively, magenta 4 imaging device 10Y of color (M), aeruginous (C) and black (K) these 4 kinds of color toner pictures, 10M, 10C, 10K are constituted.These 4 imaging devices 10 (Y, M, C, K) are configured in the inner space of housing 1a In be arranged in the state of 1 row.
As shown in Figures 2 and 3, each imaging device 10 has the photosensitive drums 11 as the example as keeping body rotated, Following each device mainly it is configured with around this photosensitive drums 11.Main device is such as the following: Charging system 12, Its current potential needed as side face (as keeping face) the charged one-tenth formed allowing to realize photosensitive drums 11;As electrostatic Sub-image forms the exposure device 13 of unit, and it irradiates based on image information (signal) to the charged side face of photosensitive drums 11 Light LB and be formed with (each color) electrostatic latent image of potential difference;As the display 14 of visualization unit, The toner of the developer of the color that its use is corresponding makes this electrostatic latent image image and become toner image;Primary transfer fills Putting 15, this each toner image is transferred on intermediate transfer device 20 by it;Drum clearing apparatus 16, it is removed and cleans Residual is attached to the attachment of the toner etc. on the picture holding face of the photosensitive drums 11 after primary transfer.
Photosensitive drums 11 is formed at the side face carrying out the cylindric of grounding or columned base material to be had by sensitive material The picture of the photoconductivity layer (photosensitive layer) constituted keeps face.This photosensitive drums 11 is from not shown rotating driving device quilt Transmission power, is supported in the way of rotating in the direction indicated by the arrow.
Charging system 12 is made up of the charged roller of the contact-type of configuration when contacting with photosensitive drums 11.To charged Device 12 supplies charged voltage.As charged voltage, it is by the imaging dress of reversion imaging at display 14 In the case of putting, supply the polarity identical with the charged polarity of the toner supplied from this display 14 voltage or Electric current.
Exposure device 13 makes the light LB of the information structure according to the image being input to image processing system 1 to after charged The side face of photosensitive drums 11 be irradiated forming electrostatic latent image.It is input to figure with any means when being formed for sub-image As formed device 2,3, the information (signal) that carried out the image of image procossing at image processing part is sent to expose Electro-optical device 13.It addition, as exposure device 13, it is possible to use the exposure device being made up of LED print head, should LED print head utilizes the LED (Light of the multiple light-emitting components arranged as the direction of principal axis along photosensitive drums 11 Emitting Diode, light emitting diode) form electrostatic latent image to the photosensitive drums 11 irradiation light corresponding with image information.
Display 14 is all configured to join in the inside of the housing 140 of the reception room being formed with peristome and developer 4 Being equipped with such as the following: developing roll 141, developer 4 is kept and is transported to the image region relative with photosensitive drums 11 by it; The stirring transfer unit 142,143 of 2 auger conveyors etc., its with stirring developing agent 4 while by developing agent 4 The mode being supplied to developing roll carries;And layer-thickness restriction member 144, its restriction is maintained on developing roll 141 The amount (thickness) of developer 4.On this display 14, between its developing roll 141 and photosensitive drums 11 from Not shown supply unit is supplied to the bias voltage of imaging.Further, developing roll 141 or stirring transfer unit 142, 143 are communicated to rotate in the desired direction from the power of not shown rotating driving device.As above-mentioned developer 4, such as use the two component developer comprising nonmagnetic toner and magnetic carrier.
It addition, in Fig. 1, label 145 is denoted as respectively containing and is supplied to the display 14 of correspondence at least Comprise the toner Cartridge of the developer accommodating container of the developer of toner.In this embodiment, at toner Cartridge The inside of 145 is only accommodated with toner.
Primary transfer device 15 is the transfer device of the contact-type with primary transfer roller, and this primary transfer roller is with photosensitive Surrounding's contact of drum 11 and rotate and be supplied to primary transfer voltage.As primary transfer voltage, from not shown Supply unit be supplied to represent the DC voltage with the charged opposite polarity polarity of toner.
Drum clearing apparatus 16 is by being constituted with lower part etc.: the container-like main body 160 of a part of opening;Cleaning board 161, It is configured in the way of desirable pressure contacts by the side face with the photosensitive drums 11 after primary transfer, removes and cleans residual The attachment of toner etc.;Retracting device 162, it reclaims the attachment removed by cleaning board 161.
As shown in Figure 1 to Figure 3, intermediate transfer device 20 be configured to be present in each imaging device 10 (Y, M, C, K) top position.Intermediate transfer device 26 is mainly constituted by with lower part: intermediate transfer belt 21, and it is passing through While becoming the primary transfer position between photosensitive drums 11 and primary transfer device 15 (primary transfer roller), at arrow Head side shown in B rotates up;Multiple bands support roller 22~26, and intermediate transfer belt 21 is kept by it from its inner surface In desired state and rotatably support this intermediate transfer belt 21;Secondary transfer printing device 30, it is arranged in support Outer peripheral face (as the keeping face) side of the intermediate transfer belt 21 on band support roller 23, makes on intermediate transfer belt 21 Toner image is secondarily transferred to record on paper 5;And band clearing apparatus 27, it will pass through secondary transfer printing device 30 attachments remaining toner, the paper powder etc. that are attached on the outer peripheral face of intermediate transfer belt 21 afterwards are removed and are cleaned.
As intermediate transfer belt 21, use and such as disperse in the synthetic resin such as polyimide resin, polyamide The endless belt that the material of the resistance adjustment agent etc. such as carbon black is made.Further, band supports roller 22 and is configured to drive roller, carries Supporting roller 23 and be configured to the spare roll of secondary transfer printing, band supports roller 24 and is configured to tension force and gives roller, band support roller 25, 26 are configured to keep the driven voller of the traveling-position etc. of intermediate transfer belt 21.
As it is shown in figure 1, secondary transfer printing device 30 is the transfer device of the contact-type with secondary transfer roller, this secondary Transfer roll band in intermediate transfer device 20 supports the outer peripheral face part of the intermediate transfer belt 21 supported at roller 23 i.e. At secondary transfer position, rotate with the circumferential contact of intermediate transfer belt 21, and be supplied to secondary transfer printing voltage. Further, represent that the DC voltage of the charging polarity of opposite polarity with toner or identical polar is as secondary transfer printing electricity consumption Pressure is fed into the support roller 23 of secondary transfer roller 30 or intermediate transfer device 20.
Fixing device 40 is configured to be configured with such as the following: the heating rotary body 41 of roll-type or belt, and it is heated single Unit's heating, so that surface temperature is retained as predetermined temperature;Pressurization with roll-type or belt rotary body 42, its Rotate with required pressure contact with this heating rotary body 41.In this fixing device 40, heating rotary body 41 contact sites contacted with pressurization rotary body 42 become and carry out the fixing of required fixing process (heat and pressurize) Process portion.It addition, below the structure of fixing device 40 is described in detail.
It addition, feedway 4 supplies the continuous sheet 6 of the long size as continuous print record medium.As serialgram Material 6, uses so-called label paper, this label paper the most as shown in Figure 4, by synthetic resin such as PP (polypropylene) or The paper such as cellophane or fine paper is constituted, and typically has on lining paper function peeling paper 61 discarded in use, every The adhesive linkage 62 as intermediate layer being made up of adhesivess such as glue, be bonded with the surface substrate being located at the superiors 63.Label paper 6 on its surface substrate 63 print pattern or word and for using.According to its purposes, this label Paper 6 is such as so that the mode that surface substrate 63 side is positioned on image forming surface i.e. surface (outer peripheral face) is rolled up The coil paper becoming roll is supplied to.
As it is shown in figure 1, feedway 4 has the paper feed roller 64 being made up of the continuous sheet 6 being wound into roll.Supply Paper bowl 64 is driven in rotation in the counterclockwise direction by not shown driver element, supplies continuous sheet 6.Further, Being configured with the 1st guide reel 65 between feedway the 4 and the 1st image processing system 2, the 1st guide reel 65 will The secondary transfer position of the 1st image processing system 2 it is directed to from the continuous sheet 6 of feedway 4 supply.
Further, having conveyer device 9 between the 1st image processing system the 2 and the 2nd image processing system 3, this is defeated Device is sent to supply and be transported to the 2nd image processing system 3 by the continuous sheet 6 discharged from the 1st image processing system 2. Conveyer device 9 is constituted by with lower part: the 1st conveying roller to 91, its discharge portion with the 1st image processing system 2 It is arranged in top accordingly;With the 2nd conveying roller to 92, it is arranged in the 1st conveying roller lower section to 91.
On the other hand, it is configured with the 2nd guide reel 66 in the lower section of the 2nd image processing system 3, the 2nd guide reel The continuous sheet 6 carried by conveyer device 9 is directed to the secondary transfer position of the 2nd image processing system 3 by 66. And, it being configured with conveying roller 67,68 in the side of the 2nd image processing system 3, this conveying roller 67,68 will be from The continuous sheet 6 that 2 image processing systems 3 are discharged is transported to retracting device 5.
Retracting device 5 has recycling roll 69, and this recycling roll 69 will be discharged and by carrying from the 2nd image processing system 3 The continuous sheet 6 of roller 67,68 conveying is wound into roll and reclaims.Recycling roll 69 is existed by not shown driver element Being driven in rotation on Ni Shizhenfangxiang, the continuous sheet 6 that will be formed with image reclaims and houses.
Fig. 5 illustrates the control device controlling image formation system (the 1st and the 2nd image processing system).
Control device 100 has the image formation action to the 1st and the 2nd image processing system 2,3 and unifies control The CPU (Central Processing Unit, CPU) 101 of system.CPU101 is according to being stored in advance in Program in ROM (Read Only Memory, read only memory) 102, with reference to being stored in RAM (Random Access Memory, random access memory) while parameter in 103 etc., control the 1st and the 2nd image shape Become the image formation action in device 2,3.
Label 104 represents that input user forms the kind of continuous sheet 6 of image or size or number of prints (is beaten The quantity of image of print) etc. user interface portion, 105 represent the image read-out of the image reading original copys, 1061、 1062Represent the 1st and the 2nd image forming part in the 1st and the 2nd image processing system 2,3.
<basic acts of image formation system>
Hereinafter, the basic image of the 1st and the 2nd image processing system 2,3 of image formation system 1 is formed dynamic Illustrate.
Here, to use 4 imaging devices 10 (Y, M, C, K) of the 2nd image processing system 3 to be formed Image formation action during the full-color image that the toner image making 4 kinds of colors (Y, M, C, K) combines and constitutes As a example by illustrate.It addition, use 4 imaging devices 10 (W, T, G, S) of the 1st image processing system 2 Image formation action when forming in 4 kinds of colors (W, T, G, S) toner image more than any one color is also Identical.
When the 2nd image processing system 3 receives the requirement instruction of image formation action (printing) from control device 100 During information, 4 imaging devices 10 (Y, M, C, K), intermediate transfer device 20, secondary transfer printing device 30, fixed Image device 40 grade starts.
Then, in each imaging device 10 (Y, M, C, K), first, each photosensitive drums 11 is shown in arrow A Side rotate up, each Charging system 12 makes the surface of each photosensitive drums 11 be charged to required polarity respectively (to implement Mode 1 is negative polarity) and current potential.It follows that the surface of the photosensitive drums 11 after charged is irradiated by exposure device 13 Light LB, this light LB become each color component according to the information conversion of the image that will enter into the 2nd image processing system 3 The signal of the image that (Y, M, C, K) obtains and luminous, the surface of this photosensitive drums 11 is formed respectively by The electrostatic latent image of each color component that the potential difference needed is constituted.
It follows that each color component that each display 14 (Y, M, C, K) is to being formed in photosensitive drums 11 Electrostatic latent image is supplied respectively to the toning of the charged corresponding color (Y, M, C, K) for required polarity (negative polarity) Agent also makes it adhere to electrostatic adherence and image.By this imaging so that be formed at the colors in each photosensitive drums 11 The electrostatic latent image of composition be rasterized 4 kinds of colors for using the toner of the color of its correspondence to image respectively (Y, M, C, K) toner image.
It follows that when the tune of each color being formed in the photosensitive drums 11 of each imaging device 10 (Y, M, C, K) When toner picture is transported to primary transfer position, primary transfer device 15 turns with middle at the toner image making this each color Printing equipment is put the intermediate transfer belt 21 rotated up in the side shown in arrow B of 20 overlaps successively and is carried out one Secondary transfer.
Further, in each imaging device 10 that primary transfer terminates, drum clearing apparatus 16 is removed residual in the way of wiping off Stay the attachment of the toner etc. on the surface of photosensitive drums 11 and clean the surface of photosensitive drums 11.Thus, each imaging dress Put 10 and be in the state that can carry out imaging action subsequently.
It follows that in intermediate transfer device 20, keep having carried out once turning by the rotation of intermediate transfer belt 21 Print toner image and be transported to secondary transfer position.It is formed at serialgram with by the 1st image processing system 2 Intermediate transfer device 20 is sent and be supplied to continuous sheet 6 via the 2nd guide reel 66 by the image synchronization ground on material 6 Secondary transfer position.
At secondary transfer position, secondary transfer printing device 30 makes the secondary in the lump of the toner image on intermediate transfer belt 21 turn Print to be formed on the continuous sheet 6 of image by the 1st image processing system 2.Further, terminate at secondary transfer printing In intermediate transfer device 20, the intermediate transfer belt 21 after remaining in secondary transfer printing is removed and cleaned to band clearing apparatus 27 Surface on the attachment of toner etc..
It follows that secondary transfer printing has the continuous sheet 6 of toner image from intermediate transfer belt 21 and secondary transfer roller 30 Fixing device 40 it is transported to after being stripped.In fixing device 40, carry out required fixing process and (heat and add Pressure), make unfixed toner image be fixed on continuous sheet 6.Finally, continuous sheet 6 quilt after fixing end It is discharged to the outside of the 2nd image processing system 3, is wound onto the recovery of retracting device 5 via conveying roller 67,68 On roller 69.
By above action, output is formed with the full-color image that makes the toner image combination of 4 kinds of colors and constitute Continuous sheet 6.
Further, in 4 imaging devices 10 (W, T, G, S) of the 1st image processing system 2, the 2nd Before the image formation action of image processing system 4, through the operation identical with the 2nd image processing system 3, even Toner image more than any one color in 4 kinds of colors (W, T, G, S) is formed on continuous sheet material 6.Continuous sheet 6 are fed into the 1st image processing system 2 from the paper feed roller 64 of feedway 4 via the 1st guide reel 65.Further, It is formed with the continuous sheet 6 of the image conveying roller via conveyer device 9 to 91,92 by the 1st image processing system 2 It is transported to the 2nd image processing system 4 with the 2nd guide reel 66.
<structure of the characteristic of image processing system>
Fig. 6 is to illustrate the 1st fixing device 40 that the 1st image processing system 2 configured as described above uses in the lump1、 The 2nd fixing device 40 used with the 2nd image processing system 32Sectional structure chart.It addition, the 1st and the 2nd is fixed Image device 401、402Constitute identical.
As shown in Figure 6, fixing device 40 has: as the fixing band 41 of heated endless belt;As pressurization rotation The backer roll 42 turned, its pressure contact portion formed between fixing band 41 (impressing portion) N clamp maintain uncertain Shadow toner image G is (at the 2nd fixing device 402In the case of, the most fixing toner image and unfixed toner As G) continuous sheet 6 rotate;As the pressing pad 43 of pressing component, it is used for making fixing band 41 and adding Pressure roller 42 crimps;And support member 44, it supports pressing pad 43.
Fixing device 40 has: alternating magnetic field generator 45, and it is in the phase of the impressing portion N being positioned at fixing band 41 On the outer peripheral face tossed about, when arranged opposite across predetermined space separates, produce and fixing band 41 is carried out electricity The alternating magnetic field of magnetic induction heating;Thermal storage member 46, it is with via fixing band 41 and alternating magnetic field generator 45 Opposed mode, is configured at the inside of this fixing band 41, the heat that accumulation fixing band 41 sends with contact condition;And Peeling off accessory 47, its auxiliary peels off continuous sheet 6 from fixing band 41.
Cross sectional shape before fixing band 41 crimps with backer roll 42 and deforms is formed as external diameter 20~about 50mm Thin cylinder shape.In this embodiment, the external diameter of fixing band 41 is set about 30mm.As it is shown in fig. 7, This fixing band 41 is such as by basic unit 411 and be sequentially laminated on the heating layer 412 of its outer peripheral face, elastic layer 413 and Surface release layer 414 is constituted.But, fixing band 41 can also arrange protective layer in the periphery of heating layer 412, should Rotating fields is arbitrary.
As shown in Figure 6, backer roll 42 is configured to have: core metal parts 421, it utilizes rustless steel, aluminum etc. Metal is formed as cylindrical shape;Elastomer layer 422, it covers the table at these core metal parts 421 with predetermined thickness On face, it is made up of silicone rubber etc., and there is thermostability;And release layer 423, it is with the thickness about such as 50 μm Degree covers on the surface of this elastic layer 422, by PFA (tetrafluoroethene and the copolymer of perfluoroalkyl ethylene oxy) etc. The excellent material of release property constitute.Solid round for example formed as external diameter about about 28mm of backer roll 42 Post shapes.
Further, as making fixing band 41 and the material of pressing pad 43 of backer roll 42 crimping, such as by silicone rubber, The elastomer with thermostability of fluorubber etc. is constituted, and as shown in Figure 6, is arranged at support member 44 being embedded into Install under state in the recess 52 of the position opposed with backer roll 42.Then, this pressing pad 43 be by via Fixing band 41 crimps with backer roll 42 and forms the parts of impressing portion N between fixing band 41 and backer roll 42.
As shown in Figure 6, to be formed as cross section rectangular-shaped for support member 44, in order to has when receive via pressing pad 43 From the rigidity that deflection is below predetermined value during the crimp force of backer roll 42.This support member 44 is by sensing magnetic Field does not produce impact or is difficult to produce the material composition of impact, such as, use the PPS being mixed into glass fibre (poly- Diphenyl sulfide) etc. heat-resistant resin or the nonmagnetic material etc. of such as aluminum etc..
Further, as shown in Figure 8, fixing device 40 has as the device frame being formed as elongated rectangular-shaped framework Frame 52.The fixed part 51 at the both ends being arranged on support member 44 is installed on device frame 52 when fixing On, in the periphery of the supporting part of this support member 44, it is fixed to be rotatably provided with via not shown parts of bearings Shadow bands 41.
Further, as shown in Figure 8, for fixing band 41 being carried out the both ends of the drive shaft 53 that rotation drives via axle Bearing portion part 54 is rotatably fitted on device frame 52.In drive shaft 53, it is being positioned at device frame 52 The both ends of inner side be separately installed with the drive division 48b of the flange components 48 with the both ends being positioned at fixing band 41 The driven gear 55 of engagement.Further, in drive shaft 53, in the one end peace in the outside being positioned at device frame 52 Equipped with driving force is delivered to the transmission gear 56 of this drive shaft 53, this transmission gear 56 is with to be fixed on driving electronic Driving gear 59 in the rotary shaft 58 of machine 57 engages.Further, the cardinal extremity of the rotary shaft 58 of motor 57 is driven Portion is rotatably fitted on the device frame 52 of fixing device 40.Then, fixing device 40 is by driving Motor 57 carries out rotating driving, by the rotary driving force of this driving motor 57 via driving gear 59 and transmission Gear 56 is delivered to drive shaft 53, makes the driven gear 55,55 being arranged in drive shaft 53 rotate, utilizes and this The drive division 48b of the flange components 48 at the both ends being arranged on fixing band 41 of a little driven gears 55,55 engagements, 48b, carries out rotating driving to fixing band 41 with predetermined rotary speed.
It addition, fixing band 41 is due to as it has been described above, be the basic unit being made up of metal material or synthetic resin material etc. 411, heating layer 412, elastic layer 413 and surface release layer 414 stacking and constitute, thus have flexibility, Flexibility, and also there is mechanical strength, even if rotatably driven from drive division 48b, 48b of flange components 48 In the case of moment of torsion, also will not produce press-bending etc., and smooth carrying out rotates driving.
As shown in Figure 8, the both ends of the rotary shaft 425 of backer roll 42 are rotatably propped up via parts of bearings 70 Support is on device frame 52, and passes through the spiral of the forcing unit as the both ends being arranged in this rotary shaft 425 Spring 71 crimps with fixing band 41 with predetermined crimp force.In this embodiment, as described later, fixed in order to improve The productivity of image device 40, by the height that is relatively set to compared with the past for the crimp force of backer roll 42 and pressing pad 43,2 The full payload of individual helical spring 71 is set to such as 50~about 80kgf.It addition, rotatably support pressurization The parts of bearings 70 of roller 42 utilizes not shown elongated hole, moves up freely in the side separateing with fixing band 41 Be maintained on the device frame 52 of fixing device 40.
It addition, backer roll 42 is configured to: contact separation mechanism 72 can be utilized, is crimping with fixing band 41 or dividing From side move up, when the heating of fixing band 41 starts, make backer roll 42 separate.
As the concrete structure of contact separation mechanism 72, such as it is shown in figure 9, have and rotatably support pressurization The arm member 73 at the both ends of the rotary shaft 425 of roller 42, consists of, the one end 73a of this arm member 73 with Rotatably supported centered by fulcrum 74, and the other end 73b utilize helical spring 71 with fixing band It is pressed on the direction of 41 crimping.Further, it is configured with above the other end 73b of arm member 73 by rotating The eccentric cam 76 that axle 75 is driven in rotation, by driving eccentric cam 76 to rotate by the predetermined moment so that arm The other end 73b of parts 73 is pressed, and backer roll 42 separates with fixing band 41.
And, as shown in Figure 6, it is disposed in the alternating magnetic field generator of backer roll 42 opposition side with fixing band 41 45 such as have: magnet exciting coil 80, and it produces alternating magnetic field;Holding member 81, magnet exciting coil 80 is kept by it Pre-position in substantially arc-shaped;Outside magnetic path formation member 82, its formation is generated by magnet exciting coil 80 The magnetic circuit of the outer circumferential side of the fixing band 41 in the magnetic circuit of alternating magnetic field, is shaped generally as circular shape;And excitation electricity Road 83, high frequency electric is supplied to magnet exciting coil 80 and carries out excitation by it.
Further, as shown in Figure 6, the inside at fixing band 41 is equipped with thermal storage member 84.This thermal storage member 84 is Such parts: be configured to across fixing band 41 opposed with alternating magnetic field generator 45, have fixing band 41 carry out the heat accumulation function that conduction of heat declines to the temperature compensating fixing band 41.Further, above-mentioned thermal storage member 84 is Form the parts of magnetic circuit of the inner side of the alternating magnetic field that alternating magnetic field generator 45 produces, and by permeability along with Temperature and the temperature-sensitive magnetic material that changes is made, also there is the function of the heating of the heating layer 412 controlling fixing band 41. This thermal storage member 86 is formed as copying the circular shape of the inner peripheral surface of fixing band 41, along the inner circumferential of this fixing band 41 The central angle of the arc-shaped part in face is set to such as about 160 degree.Heating controls parts 84 via being arranged on it The plate-shaped member 85 at both ends, is screwed into the in support member 44 with screw 86.
It addition, in this embodiment, as it is shown in figure 1, in the 1st image processing system 2 by white (W), In transparent (T), golden (G) and silver color (S), toner image more than at least one color is transferred to continuous sheet After on 6, the toner image being transferred on this continuous sheet 6 is by being arranged in the 1st image processing system 2 Fixing device 401Carry out fixing, and then, in the 2nd image processing system 3 by yellow (Y), magenta (M), After the toner image of aeruginous (C) and black (K) is transferred on continuous sheet 6, continuous for being transferred to this Toner image on sheet material 6, by being arranged on the fixing device 40 in the 2nd image processing system 32Carry out fixing, Thus form image.
Now, by the fixing device 40 in the 1st image processing system 21Fixing temperature and the 2nd image formed dress Put the fixing device 40 in 32Fixing temperature be set as equal temperature and toner image can be fixed on serialgram In the case of relatively high temperature (such as, about 185 DEG C) on material 6, will in the 1st image processing system 2 The toner image of white (W), transparent (T), golden (G) and silver color (S) is by the 1st fixing device 401Fixed When shadow is on continuous sheet 6, as shown in Figure 10, continuous sheet (medium) 6 is because of the 1st fixing device 401In add Heat and shrink.Figure 10 passes through the 1st fixing device 40 with continuous sheet 61Impressing portion N after time through being Transverse axis, with this continuous sheet 6 produce shrinkage factor as the longitudinal axis, obtain make fixing device be changed to 135 DEG C, 160 DEG C, The change of the shrinkage factor produced in continuous sheet 6 in the case of 185 DEG C.Label paper is used as continuous sheet 6.Even The shrinkage factor of continuous sheet material 6 reaches 0.20% in the case of fixing temperature is 185 DEG C.Therefore, formed at the 1st image Device 2 makes tune more than at least one color in white (W), transparent (T), golden (G) and silver color (S) In the case of toner picture is fixed on continuous sheet 6 with the fixing temperature of 185 DEG C, it is left that continuous sheet 6 produces 0.20% Right contraction.
As a result of which it is, ought and then in the 2nd image processing system 3 by yellow (Y), magenta (M), bluish-green The toner image of color (C) and black (K) is transferred to have been formed with white (W), transparent (T), golden (G) With time on the continuous sheet 6 of toner image more than at least one color in silver color (S), continuous sheet 6 produces 0.20% The contraction of left and right, causes compared with the image formed by the 1st image processing system 2 by the 2nd image processing system 2 There is deviation because of the contraction of continuous sheet 6 in the position of the image formed, the position deviation of image occurs.
Therefore, in this embodiment, by by the fixing device 40 in the 1st image processing system 21Fixing temperature Degree T1It is set to than the fixing device 40 in the 2nd image processing system 32Fixing temperature T2Low (T1< T2), fall Low by the fixing device 40 in the 1st image processing system 21The contraction (deformation) of the continuous sheet 6 produced.1st Fixing device 40 in image processing system 21Fixing temperature T1Also according to the material of continuous sheet 6 or size etc. and Difference, but be configured to than the fixing device 40 in the 2nd image processing system 32Fixing temperature T2Low 5~50 DEG C. At the 1st and the 2nd fixing device 401、402In temperature difference less than 5 DEG C in the case of, it is impossible to fully obtain serialgram Picture position deviation inhibition on material 6, in the case of temperature difference is more than 50 DEG C, the 1st image processing system 2 In fixing device 401Fixing temperature T1Exceedingly become low temperature, at fixing device 401Middle generation low temperature skew etc. Fixing bad, thus be not preferred.It is more desirable that, by the fixing device in the 1st image processing system 2 401Fixing temperature T1With the fixing device 40 in the 2nd image processing system 32Fixing temperature T2Difference be set as 20~30 DEG C.
It is desirable that, as shown in figure 11, the fixing device 40 in the 1st image processing system 21Fixing temperature T1 It it is more than 140 DEG C from the viewpoint of the fixing bad fixation performance preventing low temperature skew etc..And, it is desirable to Fixing device 40 in 2nd image processing system 32Fixing temperature T2From yellow (Y), magenta (M), indigo plant It it is 160 DEG C from the point of view of the color rendering properties viewpoint of the toner of green (C) and black (K).In this embodiment, will Fixing device 40 in 1st image processing system 21Fixing temperature T1It is set as 140 DEG C, the 2nd image is formed Fixing device 40 in device 32Fixing temperature T2It is set as 160 DEG C.Therefore, the 1st fixing device 401Determine Shadow temperature T1With the 2nd fixing device 402Fixing temperature T2Temperature difference be 20 DEG C.
The white (W) used in 1st image processing system 2, transparent (T), golden (G) and silver color (S) The toner of particular color due to make the toner particle being made up of synthetic resin manifest white (W), golden (G), Or the particular color of silver color (S) etc., thus the developer containing Chinese white, metal powder etc., and, transparent (T) Toner due to common yellow (Y), magenta (M), aeruginous (C) and the toner phase of black (K) Relatively, the particle diameter of toner is big, thus with yellow (Y), magenta (M), aeruginous (C) and black (K) Toner to compare fixing temperature high, the most desirably come fixing with 180 DEG C or its above temperature.
In this embodiment, by white (W), transparent (T), golden (G) and the particular color of silver color (S) The fixing temperature T of toner1It is set as 140 DEG C.In this case, white (W), transparent (T), golden (G) With the toner image of the particular color of silver color (S) also at the fixing device 40 of the 1st image processing system 21In with 140 DEG C Fixing temperature T1Accepting fixing process, toner particle is melted to be softened, it is ensured that for the fixation performance of continuous sheet 6. Afterwards, the toner image of the particular color of white (W), transparent (T), golden (G) and silver color (S) is the 2nd The fixing device 40 of image processing system 32In with the fixing temperature T of 160 DEG C2Accept the fixing process of the 2nd time.Cause This, the toner particle of the particular color of white (W), transparent (T), golden (G) and silver color (S) is the 1st Fixing device 401In melted soften once, and continuous sheet 6 self is also by the 1st fixing device 401Heating, from And while maintaining the secondary transfer printing to the 2nd image processing system 3 there is no the temperature (waste heat) of degree of obstacle, At the 2nd fixing device 402In carry out the fixing process of the 2nd time with the relatively high temperature of 160 DEG C.Therefore, by vain The imagery exploitation of the toner composition of the particular color of color (W), transparent (T), golden (G) and silver color (S) the 1 fixing device 401With the 2nd fixing device 402Multiplication effect, even than originally desired fixing temperature that is 180 DEG C Low fixing temperature (140 DEG C and 160 DEG C), also can obtain good fixation performance.
Fixing device 40 in 1st and the 2nd image processing system 2,31、402Fixing temperature T1、T2By controlling Device 100 controls into, at the 1st and the 2nd image formation unit 1061、1062Fixing device 401、402In, By making to be supplied to the frequency of high frequency electric of magnet exciting coil 80 from field circuit 83 or current value changes so that fixing Fixing temperature with 41 is equal to as the 1st fixing temperature T1140 DEG C and as the 2nd fixing temperature T2160 DEG C.
<action of the characteristic of image processing system>
Preferably in 1, the 1st and the 2nd image processing system 2,3 receives image from controlling device 100 During the request instruction information of formation action (printing), as it has been described above, the 1st image forming part 1061With the 2nd image Forming portion 1062In 4 imaging devices 10, intermediate transfer device 20, secondary transfer printing device 30, fixing device 40 grades start.
In the 1st image processing system 2, continuous sheet 6 transfers white (W), transparent (T), gold (G) after the toner image and more than at least one color of silver color (S), at the 1st fixing device 401In fixing The impressing portion N of crimping has been passed through with 41 and backer roll 42, so that white (W), transparent (T), golden (G) It is fixed on continuous sheet 6 with toner image more than at least one color of silver color (S).
Now, the fixing device 40 in the 1st image processing system 21Fixing temperature T1It is set to such as 140 DEG C. Therefore, as shown in figure 11, the white (W) being fixed on continuous sheet 6, transparent (T), golden (G) and silver Toner image more than at least one color of color (S) is fixed on continuous sheet 6 without there is low temperature skew Deng fixing bad.
Afterwards, in the 2nd image processing system 3, continuous sheet 6 has transferred yellow (Y), magenta (M), After the toner image of aeruginous (C) and black (K), at fixing device 402Middle fixing band 41 and backer roll 42 Pass through the impressing portion N of crimping, so that yellow (Y), magenta (M), aeruginous (C) and black (K) Toner image be fixed on continuous sheet 6.Now, the fixing device 40 in the 2nd image processing system 32Determine Shadow temperature T2It is set to such as 160 DEG C.The yellow (Y) that therefore, as shown in figure 11, is fixed on continuous sheet 6, The toner image of magenta (M), aeruginous (C) and black (K) is fixed when color rendering properties is good. Further, the toner image of the particular color of white (W), transparent (T), golden (G) and silver color (S), it is fixed Shadow is also good, and due to by the fixing process of the 2nd time of fixing device 402, thus at steady-state It is fixed on continuous sheet 6.
So, in above-mentioned embodiment 1, and by the fixing temperature in the 1st and the 2nd image processing system 2,3 T1、T2It is set to compared with the situation of the relatively high same temperature equal with conventional fixing temperature, such as Figure 10 institute Showing, can suppress into low by the shrinkage factor of the continuous sheet 6 after fixing in the 1st image processing system 2 is 0.05% The value of left and right, it is suppressed that position occurs on continuous sheet 6 between the image formed by the 2nd image processing system 3 Put deviation.
[embodiment 2]
Figure 12 illustrates the overall summary of the image processing system of embodiment 2.
Preferably in 2, as shown in figure 12, having the switching device of the example as switch unit, this is cut Changing device is located along continuous sheet to which image processing system 2,3 in the 1st and the 2nd image processing system 2,3 The upstream side of the conveying direction of 6 switches over.
Preferably in 2, as switching device, have and add the side being arranged in the 1st image processing system 2 The conveying roller 93,94 of the switching of (right flank in figure).Further, as being arranged in the 1st image processing system 2 The 1st guide reel 65 of lower section, be configured to use guide reel 65a, the 65b being made up of pair of rolls, and replace by list The guide reel that the roller of is constituted.
Preferably in 2, specific by white (W), transparent (T), golden (G) and silver color (S) The toner image of color is formed at lower floor and forms yellow (Y), magenta (M), aeruginous (C) above it In the case of the toner image of black (K), as shown in Figure 12 (a), with above-mentioned embodiment 1 identically It is configured to: supply continuous sheet 6 from feedway 4, by continuous sheet 6 via the 1st guide reel in 65 Individual guide reel 65b is directed to the secondary transfer position of the 1st image processing system 2, will be from the 1st image processing system 2 The continuous sheet 6 discharged is directed to the two of the 2nd image processing system 3 via conveyer device the 9 and the 2nd guide reel 66 Secondary transfer position.Now, the conveying roller 93,94 of switching is not used.
On the other hand, preferably in 2, by yellow (Y), magenta (M), aeruginous (C) and The toner image of black (K) is formed at lower floor and forms white (W), transparent (T), golden (G) above it In the case of the toner image of the particular color of silver color (S), as shown in Figure 12 (b), paper feed roller 64 is installed On retracting device 5, make retracting device 5 as feedway function, supply continuous sheet from retracting device 5 6.It is configured to, the continuous sheet 6 supplied from retracting device 5 is directed to the 2nd image shape via the 2nd guide reel 66 Become the secondary transfer position of device 3, the 2nd fixing device 40 will have been passed through2Continuous sheet 6 via conveyer device 91, 92 and the 1st guide reel is directed to the secondary transfer printing of the 1st image processing system 2 to another guide reel 65a in 65 Position, afterwards from the continuous sheet 6 of the 1st image processing system 2 discharge via the conveying roller 93,94 switched, Reclaimed by the feedway 4 as retracting device function.It addition, be provided with recycling roll on feedway 4 69。
Now, the fixing device of the 2nd image processing system 3 of the upstream side of the conveying direction of continuous sheet 6 it is located along 402Fixing temperature be set to by the control device 100 also serving as setup unit function and form dress than the 1st image Put the fixing device 40 of 21The low temperature of fixing temperature, such as 140 DEG C.Further, the 1st image processing system 2 Fixing device 401Fixing temperature be configured to the fixing device 40 than the 2nd image processing system 32Fixing temperature Spend high temperature, such as 160 DEG C.
It addition, the image formation action in the 1st and the 2nd image processing system 2,3 is played by also serving as setup unit The control device 100 of function controls.
So, in above-mentioned embodiment 2, by the conveying roller 93,94 of the additional switching as switching device, The transport path of switching continuous sheet 6, need not make the 1st and the 2nd image processing system 2,3 move, and just can switch It is that the toner image of particular color by white (W), transparent (T), golden (G) and silver color (S) is formed at down Layer or the toner image of yellow (Y), magenta (M), aeruginous (C) and black (K) is formed at down Layer.
[embodiment 3]
Figure 13 illustrates the overall summary of the image processing system of embodiment 3.
<overall structure of image processing system>
The image formation system 1 of embodiment 3 has as making between the 1st and the 2nd image processing system 2,3 The continuous sheet 6 of the 2nd image processing system 3 in downstream it is transported to from the 1st image processing system 2 of upstream side The conveying roller pair of the delay in the delay portion being temporarily detained.
The conveying roller being detained is constituted 92 by the conveying roller of the lower section being positioned at conveyer device 9.(a) such as Figure 13 Shown in, conveying roller a conveying roller 92b in the pair of rolls of 92 is configured at a predetermined rate from another The holding fix of individual conveying roller 92a contact moves to separate with this another conveying roller 92a and move to the separation of lower section Position.This conveying roller to 92 start before image formation action standby time (during wait), such as Figure 13 (b) institute Show, be positioned at the holding fix that a roller 92b contacts with another roller 92a.
Then, the 1st adjoint image formation action (synchronization) forming image on continuous sheet 6 of image processing system 2, Together with conveying with continuous sheet 6, the direction that a roller 92b and another roller 92a separates start mobile, with Image formation action in the 2nd image processing system 3 beginning synchronizes and stops at the rest position of lower section, will be continuously Sheet material 6 is transported to the 2nd image processing system 3.
Further, preferably in the image formation system 1 of 3, it is configured to, is not that the 1st and the 2nd image is formed Device 2,3 starts simultaneously at image formation action, but the 1st image processing system 2 first starts image formation action, 2nd image processing system 3 starts image formation action afterwards.
And, preferably in the image formation system 1 of 3, it is configured to, is not that the 1st and the 2nd image is formed Device 2,3 stops image formation action simultaneously, but the 1st image processing system 2 first stops image formation action, 2nd image processing system 3 stops image formation action afterwards.
In the image formation system 1 of embodiment 3, as shown in figure 14, refer to when receiving printing from master device 8 When showing, start the 1st image processing system 2 by controlling device 100 with the Tong Bu moment t1 that receives with print instruction Fixing device 401, by alternating magnetic field generator 45, fixing band 41 is heated.Then, when detecting The surface temperature of fixing band 41 exceedes the 1st predetermined threshold value, such as equal to the temperature of the 1st fixing temperature (140 DEG C) Time, control device 100 and start the 1st fixing device 40 at this moment t21Driving motor 57, to fixing band 41 Carry out rotating and drive, and make backer roll 42 crimp with fixing band 41.
Now, the starting with fixing device 40 is Tong Bu, start the 1st image processing system 2 imaging device 10W, 10T, 10G, 10S and intermediate transfer device 20, on intermediate transfer belt 21 will by white (W), transparent (T), The toner image that the particular color of golden (G) and silver color (S) is constituted is transferred on continuous sheet 6, by the 1st Fixing device 40 carries out fixing.
Afterwards, in the 2nd image processing system 3, start the 2nd image processing system 3 by controlling device 100 Fixing device 402, by alternating magnetic field generator 45, fixing band 41 is heated.Then, when detecting The surface temperature of fixing band 41 exceedes the 2nd predetermined threshold value, such as equal to the temperature of the 2nd fixing temperature (160 DEG C) Time, control device 100 with the image being formed on continuous sheet 6 by the 1st image processing system 2 and by the 2nd image Form the moment t3 starting that the alignment (image forming position) of the image that device 3 is formed on continuous sheet 6 is consistent 2nd fixing device 402Driving motor 57, drive fixing band 41, and make backer roll 42 press with fixing band 41 Connect.
Afterwards, with the 2nd fixing device 402Starting synchronously start the imaging device of the 2nd image processing system 3 10Y, 10M, 10C, 10K and intermediate transfer device 20, transfer yellow (Y), product on intermediate transfer belt 21 Red (M), aeruginous (C) and the toner image of black (K).
Then, when the image in the 1st image processing system 2 forms release, as shown in figure 14, by control Device 100 processed stops the 1st fixing device 40 at predetermined moment t41In the heating of fixing band 41, when detecting Dropping to conveying at a temperature of fixing band 41 stop, during below permission temperature (t5), stopping driving motor 57, it is fixed to stop The feed status of shadow bands 41.It addition, continue crimping of fixing band 41 and backer roll 42.
So, in the case of detecting that dropping to conveying at a temperature of fixing band 41 stops allowing below temperature, pass through Stop the feed status of fixing band 41, decrease the useless conveying of continuous sheet 6.Now, due to fixing band 41 Fixing temperature and the 2nd fixing device 402Compare more relatively low, thus shorten the temperature at fixing band 41 and decline Stop allowing below temperature and stopping the time before feed status to conveying.
Afterwards, when the image in the 2nd image processing system 3 forms release, by controlling device 100, The predetermined moment stops the 2nd fixing device 402In the heating of fixing band 41, when the temperature detecting fixing band 41 Drop to conveying to stop, during below permission temperature (t6), stopping driving motor 57, stopping the conveying shape of fixing band 41 State, releases crimping of fixing band 41 and backer roll 42 simultaneously.Further, the 1st fixing dress is released at t6 the most in the same time Put 401In the crimping of fixing band 41 and backer roll 42.It addition, at the 1st fixing device 401In, it is also possible to Crimping of fixing band 41 and backer roll 42 is released than above-mentioned Zao for moment t6 moment.
So, in the image formation system 1 of embodiment 3, as shown in figure 14, at the 1st image processing system When image in 2 forms release, due to the 1st fixing device 401Fixing temperature T1It is more fixed than the 2nd to be configured to Image device 402Fixing temperature T2Low, thus at the 1st fixing device 401Fixing band 41 at a temperature of drop to defeated The time stopped before allowing below temperature is sent to shorten, it is possible to stop the 1st fixing device 40 ahead of time1In fixing band 41 Feed status.Therefore, it can shorten the 1st fixing device 40 at the 1st image processing system 21Middle stopping is fixing With the time before 41, the amount of the continuous sheet 6 invalidly carried in the period before stopping fixing band 41 reduces.
Now, the continuous sheet 6 after fixing band 41 stops in the 1st image processing system 2 is stagnant owing to being trapped in The conveying roller continued to employ is transported to the 2nd image processing system 3 to the continuous sheet 6 of 92, because of without to the 2nd image Form the image on the continuous sheet 6 in device 3 and form generation obstacle.
Further, when image forms beginning, the 1st image processing system 2 is initially formed the continuous sheet 6 of image Be trapped in be detained conveying roller to 92, when starting image formation action at the 2nd image processing system 3, stop The conveying roller being only the detained movement of a roller 92b to 92, this continuous sheet 6 is transported to the 2nd image and forms dress Put 3.
[embodiment 4]
Figure 15 illustrates the overall summary of the image processing system of embodiment 4.
<overall structure of image processing system>
The image formation system 1 of embodiment 4 has identically with embodiment: use white (W), transparent (T), The toner of the particular color of golden (G) and silver color (S) forms the 1st image processing system 2 of image and uses The toner of yellow (Y), magenta (M), aeruginous (C) and black (K) these 4 kinds of colors forms image 2nd image processing system 3, but the structure of the image forming part of the 1st and the 2nd image processing system 2,3 and reality Executing mode 1 different, be accompanied by this, the feedway of continuous sheet 6 and the structure of conveyer device are the most different.
Preferably in 4, as shown in figure 15, in the 1st and the 2nd image processing system 2,3,4 one-tenth As device 10 (Y, M, C, K) is arranged in the top of intermediate transfer belt 21, to be transferred to intermediate transfer belt 21 On toner image be transferred in the mobile route that the secondary transfer position on continuous sheet 6 is intermediate transfer belt 21 The mode of the position of bottom configures secondary transfer roller 30.
Continuous sheet 6 is supplied to from the feedway 4 of the upstream side being arranged in the 1st image processing system 2, passes through The secondary transfer section of the 1st image processing system 2 and fixing device 401It is transported to the 2nd image processing system 3 afterwards. Be configured with between the 1st image processing system 2 and the 2nd image processing system 3 in order to make continuous sheet 6 be detained and by The roller 91 of the delay of 3 roller compositions.The roller 91b being positioned at centre in 3 rollers 91 being detained can be to from position Move in the position of the lower section that 2 rollers 91a, the 91c at other both ends separate.
The continuous sheet 6 being transported to the 2nd image processing system 3 turns at the secondary having passed through the 2nd image processing system 3 Print portion and fixing device 402Afterwards, via the discharge in the downstream (side) being arranged in the 2nd image processing system 3 Roller is wound onto on retracting device 5 67.
Preferably in 4, as shown in figure 15, the transport path of continuous sheet 6 can be configured to substantially straight Wire, further reduces continuous sheet 6 and the situation of loss occurs.
It addition, in said embodiment, according to having the 1st image processing system the 2 and the 2nd image processing system 3 Image formation system be described, but the quantity of image processing system is not limited to 2, it is also possible to be configured to tool There are more than 3.

Claims (7)

1. an image formation system, it is characterised in that this image formation system has:
Multiple image processing systems, it configures along the conveying direction of continuous sheet, forms figure on described continuous sheet Picture;With
Multiple fixation units, it is separately positioned on the plurality of image processing system, to being transferred to described continuous sheet On image carry out fixing, and this fixation unit will be located in the upstream side of conveying direction along described continuous sheet The fixing temperature of described image processing system is set to lower than the fixing temperature of the described image processing system being positioned at downstream.
Image formation system the most according to claim 1, it is characterised in that be positioned at along described continuous sheet Conveying direction upstream side described image processing system fixing temperature than be positioned at downstream described image formed The fixing temperature of device is low 5 DEG C~50 DEG C.
Image formation system the most according to claim 1, it is characterised in that
The plurality of image processing system has: the 1st of the image of formation yellow, magenta, aeruginous and black Image processing system and formed particular color beyond described yellow, magenta, aeruginous and black image 2 image processing systems,
Described 2nd image processing system is configured in the upstream side of the conveying direction along described continuous sheet.
Image formation system the most according to claim 1, it is characterised in that this image formation system also has:
Switch unit, its which image processing system in the plurality of image processing system is positioned at along described continuously The upstream side of the conveying direction of sheet material switches over;With
Setup unit, it, according to the switching result of described switch unit, will be located in the conveying side along described continuous sheet To the fixing temperature of described image processing system of upstream side be set to that the described image than being positioned at downstream forms dress The fixing temperature put is low.
Image formation system the most according to any one of claim 1 to 4, it is characterised in that described many Being provided with delay portion between individual image processing system, described delay portion makes to carry from the described image processing system of upstream side The described continuous sheet of described image processing system to downstream is temporarily detained.
Image formation system the most according to claim 5, it is characterised in that first stop the described figure of upstream side As forming the conveying of the described continuous sheet in device.
Image formation system the most according to claim 5, it is characterised in that first start the described figure of upstream side As forming the conveying of the described continuous sheet in device.
CN201510477569.1A 2015-02-27 2015-08-06 Image formation system Pending CN106200326A (en)

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JP2015039188A JP2016161702A (en) 2015-02-27 2015-02-27 Image forming system

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CN106200326A true CN106200326A (en) 2016-12-07

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Application publication date: 20161207