CN101439616B - Exposure head and image forming device - Google Patents

Exposure head and image forming device Download PDF

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Publication number
CN101439616B
CN101439616B CN2008101812472A CN200810181247A CN101439616B CN 101439616 B CN101439616 B CN 101439616B CN 2008101812472 A CN2008101812472 A CN 2008101812472A CN 200810181247 A CN200810181247 A CN 200810181247A CN 101439616 B CN101439616 B CN 101439616B
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China
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light
emitting component
image
sub
device group
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CN101439616A (en
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井上望
野村雄二郎
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Seiko Epson Corp
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Seiko Epson Corp
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  • Exposure Or Original Feeding In Electrophotography (AREA)
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Abstract

The present invention provides technology for forming latent image with adequate light. An exposure head has an imaging optical system arranged in a first direction, a first light emitting element and a second light emitting element disposed in a second direction substantially perpendicular to the first direction, and that emit light beams to be imaged on the latent image carrier by the imaging optical system to form latent images adjacent to each other in the first direction on the latent image carrier, a wiring electrically connected to and extended out from the light emitting element to one side in the second direction.

Description

Photohead and image processing system
Technical field
The present invention relates to the photohead of the light beam imaging that a kind of scioptics will penetrate from light-emitting component and use the image processing system of this photohead.
Background technology
As such photohead,, a kind of the end of a thread (line head) that uses the light-emitting device array that a plurality of light-emitting components is arranged as linearity and constitutes is proposed for example as described in the patent documentation 1.In relevant the end of a thread, the light beam scioptics that a plurality of light-emitting components that have from light-emitting device array penetrate respectively are imaged as a little, form the some sub-image in image planes.Thereby patent documentation 1 described the end of a thread is arranged a plurality of somes sub-images and is formed at main scanning direction.
[patent documentation 1] spy opens the 2000-158705 communique
, when forming better some sub-image, wish to increase the size of each light-emitting component, thereby form the some sub-image with enough light quantities., a plurality of light-emitting components are being arranged as in the described structure of linearity, are being difficult to increase the size of light-emitting component.This is because when increasing light-emitting component, might produce interference between adjacent light-emitting component.Moreover, in that being turned into, high-resolution is target, reduce under the situation at the interval between the light-emitting component, and the size that increases light-emitting component becomes more difficult.
Summary of the invention
The present invention proposes in view of described problem, and its purpose is, a kind of technology that can form sub-image with enough light quantities is provided.
Photohead of the present invention is characterized in that in order to realize described purpose, comprising: at the imaging optical system of first direction configuration; First light-emitting component and second light-emitting component send the light by the imaging optical system imaging, are formed on the adjacent light collecting part of first direction, and with first direction quadrature or the roughly second direction configuration of quadrature; First wiring is electrically connected with first light-emitting component, and draws to a side one side of second direction from light-emitting component; With second wiring, be electrically connected with second light-emitting component, and draw to a side one side of second direction from light-emitting component.
In addition, image processing system of the present invention is characterized in that in order to realize described purpose, comprising: the sub-image load is held body; Has imaging optical system in the first direction configuration, send by imaging optical system sub-image load hold volume imaging light and the sub-image load hold body be formed on the adjacent sub-image of first direction and with first light-emitting component and second light-emitting component of first direction quadrature or the roughly diverse location configuration of the second direction of quadrature, first wiring that is electrically connected with first light-emitting component and draws to a side one side of second direction from light-emitting component, the photohead of second wiring that is electrically connected with second light-emitting component and draws to a side one side of second direction from light-emitting component; With will hold the development section that the light collecting part that forms on the body develops in sub-image load by photohead.
In the invention that constitutes like this, will form first light-emitting component and second light-emitting component of adjacent light collecting part at first direction, be configured in the different position of second direction.Therefore, can increase first light-emitting component and second light-emitting component, thereby can form the formation that light collecting part is carried out sub-image well with sufficient light quantity.
In addition, in the present invention, a side one side that is connected each the cloth alignment second direction on these light-emitting components is drawn.Therefore, each wiring can be gathered and be one and arrange.The wiring layout become easy aspect, the present invention also is fit to.
In addition, in the derivative the present invention of a side one side who so respectively is routed in second direction, also can be at the circuit that the configuration of a side one side is connected up first and second wiring is electrically connected of second direction.By such formation, it is one that each wiring of self-emission device in the future gathers, thereby is connected with circuit, and it is easy that the layout of wiring becomes.
In addition, circuit also can be the drive circuit that first light-emitting component and second light-emitting component are driven.In such structure, drive circuit can be set, near light-emitting component so can relatively shorten wiring.Its result can supply with the blunt few signal that causes by the parasitic capacitance that connects up to light-emitting component, is favourable so such structure forms action to good sub-image.In addition, can constitute such drive circuit with TFT.
But, circuit is not limited to drive circuit, also can be FPC.The i.e. FPC that is electrically connected with wiring in the configuration of a side one side of second direction, thus self-emission device respectively connects up to gather and is one and is connected with FPC that it is easy that the layout of wiring becomes in the future.
In addition, first light-emitting component and second light-emitting component are held the mobile and luminous of body according to the sub-image load, can be formed on the adjacent sub-image of first direction.By such configuration first light-emitting component and second light-emitting component, can increase first light-emitting component and second light-emitting component, thereby can form the formation that light collecting part can be carried out sub-image well with enough light quantities.
In addition, the width of the first direction of first light-emitting component also can be longer than the interval of the first direction between first light-emitting component and second light-emitting component.This is because use the light-emitting component with such size, can form light collecting part with a lot of light quantities, and the formation of good sub-image becomes possibility.
In addition, first sub-image that usefulness first light-emitting component in the time of also can making first light-emitting component and second light-emitting component simultaneously luminous forms and with the interval of the second direction of second sub-image of second light-emitting component formation becomes the integral multiple at interval of the second direction of pixel.When constituting like this, make each light-emitting component luminous,, can suitably form light collecting part each pixel in identical timing.Therefore, can simplify the control of the luminous timing of each light-emitting component.
In addition, be the structure of organic EL for light-emitting component, can use the present invention.This is because the organic EL light amount ratio is less.Therefore, from form the viewpoint of light collecting part with enough light quantities, to relevant structure, thereby suitable application helps increasing the present invention that light-emitting component increases the light quantity of light-emitting component.Particularly the organic EL light quantity of end light emitting-type is few, so for as light-emitting component, use the structure of the organic EL of end light emitting-type, is fit to use the present invention.
In addition, also can be by liquid developer with image development.This is because liquid developer can be to develop than degree of precision, so be suitable for the formation of preferable image.
The photohead of other forms of the present invention is characterized in that in order to realize described purpose, comprising: have a plurality of light-emitting components that are grouped into each light emitting device group and the substrate that is connected the wiring on the light-emitting component; With the lens arra that each light emitting device group is provided with lens, the light beam that these lens penetrate the light-emitting component of light emitting device group is as an imaging, with the first direction quadrature or roughly the image planes that move of the second direction of quadrature form a some sub-image; In light emitting device group,, each light-emitting component is set in the position that differs from one another in the direction corresponding with first direction; Each light emitting device group outgoing beam at first direction, forms a some sub-image in the exposure area that differs from one another, and at substrate, and 2 light emitting device group that form the some sub-image in the adjacent exposure area of first direction are in the direction corresponding with the second direction configuration of staggering each other; Belonging to each wiring that connects on the light-emitting component of same light emitting device group,, draw to the same side of this light emitting device group in the direction corresponding with second direction.
In addition, image processing system of the present invention is characterized in that in order to realize described purpose, comprising: have the surface with the first direction quadrature or roughly the sub-image load that moves of the second direction of quadrature hold body; And photohead, this photohead has: have a plurality of light-emitting components of being grouped into each light emitting device group and be connected the substrate of the wiring on the light-emitting component and each light emitting device group is provided with the lens arra of lens, the light beam that these lens penetrate the light-emitting component of light emitting device group as an imaging and with the first direction quadrature or roughly the image planes that move of the second direction of quadrature form a some sub-image; In light emitting device group,, each light-emitting component is set in the position that differs from one another in the direction corresponding with first direction; Each light emitting device group outgoing beam at first direction, forms a some sub-image in the exposure area that differs from one another, and at substrate, and 2 light emitting device group that form the some sub-image in the adjacent exposure area of first direction are in the direction corresponding with the second direction configuration of staggering each other; Belonging to each wiring that connects on the light-emitting component of same light emitting device group,, draw to the same side of this light emitting device group in the direction corresponding with second direction.
In the invention (photohead, image processing system) that constitutes like this, a plurality of light-emitting components are grouped into each light emitting device group and are provided with.And 2 light emitting device group that form the some sub-image in the adjacent exposure area of first direction are in the direction corresponding with the second direction configuration of staggering each other.Its result, light emitting device group is provided with discretely in the direction corresponding with first direction, so can in the space than broad light emitting device group be set.Therefore, each light-emitting component that constitutes light emitting device group also can increase than being easier to, and can form sub-image with sufficient light quantity.
, as mentioned above, in by the structure of each light emitting device group,, wish to be connected wiring on the light emitting device group, gather and be one and arrange by each light emitting device group from the viewpoint of the simplification of wiring pattern with the grouping of a plurality of light-emitting components.And in the present invention, be connected and respectively be routed in the direction corresponding with second direction on the light-emitting component that belongs to same light emitting device group, draw to the same side of this light emitting device group.Therefore, it is one that the present invention can gather each wiring for same light emitting device group, arranges that on substrate the simplification of wiring pattern becomes possibility.
In addition, to belonging to each light-emitting component of same described light emitting device group, wiring can be connected on this light-emitting component from the side of drawing of this wiring.This is because in such structure, can shorten the wiring distance of each light-emitting component, and the simplification of wiring becomes possibility.
In addition, each wiring of drawing from light emitting device group can be arranged in the direction corresponding with described first direction according to the configuration sequence of the direction corresponding with first direction in the light emitting device group of the light-emitting component of linking objective.This is that the simplification of the light emitting control of each light-emitting component becomes possibility because in such structure.
In addition, each light-emitting component of light emitting device group is with luminous with the mobile corresponding timing of image planes, a plurality of somes sub-images are arranged at first direction and are formed, in light emitting device group, arrange in the direction corresponding that the light-emitting component of a plurality of light-emitting components is capable to be arranged a plurality of with the corresponding direction of second direction with first direction, according to adjacent at first direction, 2 light-emitting components that form the some sub-image belong to the different capable modes of light-emitting component each other, and each light-emitting component is capable to be constituted each other in the direction corresponding with first direction with staggering.In such structure, adjacent at first direction, 2 light-emitting components that form the some sub-image stagger each other in the direction corresponding with second direction.Therefore, can in space, form light-emitting component, so can increase the size of light-emitting component than broad.Therefore, can form the some sub-image with enough light quantities, the formation of good some sub-image becomes possibility.
In addition, will be adjacent at first direction, at interval the time, the diameter of the light-emitting component of the direction corresponding with first direction can be bigger at interval than light-emitting component as light-emitting component at the interval of the direction corresponding with first direction of 2 light-emitting components that forms the some sub-image.This is because use the light-emitting component with such size, can form the some sub-image with a lot of light quantities, and the formation of good some sub-image becomes possibility.
In addition, light-emitting component is capable luminous, to arrange form a plurality of during at first direction as the some row, can be simultaneously luminous according to light emitting device group, it is capable that the mode of integral multiple that the interval of the second direction that a plurality of points that form in image planes are capable becomes the pixel interval of second direction disposes light-emitting component.When constituting like this, capable luminous by making each light-emitting component in identical timing, for each pixel, can suitably form a sub-image.Therefore, the control of the luminous timing of each light-emitting component can be oversimplified.
In addition, in the image processing system that uses the said structure that can form a sub-image well, also can be by liquid developer with this image development.Be that liquid developer can be to carry out the development of sub-image than degree of precision.Therefore, the development of the some sub-image that is formed well by foregoing invention is fit to be carried out by liquid developer.
Description of drawings
Fig. 1 is the key diagram of the term that uses in this specification.
Fig. 2 is the key diagram of the term that uses in this specification.
Fig. 3 is the figure of an example of expression image processing system of the present invention.
Fig. 4 is the figure of electric structure of the image processing system of presentation graphs 3.
Fig. 5 is the stereogram of the summary of expression the end of a thread of the present invention.
Fig. 6 is the width cutaway view of the end of a thread shown in Figure 5.
Fig. 7 is the stereogram of the summary of expression lens arra.
Fig. 8 is the cutaway view of vertical LGD of lens arra.
Fig. 9 is the figure of structure at the back side of an expression substrate.
Figure 10 is the vertical view of the structure of expression light emitting device group.
Figure 11 is the block diagram of the structure of expression master controller.
Figure 12 is the block diagram of the structure of expression head controller.
Figure 13 is the block diagram of the structure of the controll block in the expression present embodiment.
Figure 14 is used to illustrate a stereogram that forms action.
Figure 15 is the figure that represents in the present embodiment the some group that forms at photosensitive drum surface.
Figure 16 is the key diagram of subscan position in the group.
Figure 17 is the figure that expression point sub-image forms an example of action.
Figure 18 is the vertical view of other structures of expression light emitting device group.
Figure 19 is the vertical view of another other structures of expression light emitting device group.
Figure 20 is the vertical view of the variation of expression light emitting device group and wiring.
Figure 21 is the vertical view of the variation of expression light emitting device group and wiring.
Figure 22 is the vertical view of the variation of expression light emitting device group and wiring.
Figure 23 is the vertical view of the variation of expression light emitting device group and wiring.
Figure 24 is the figure of the summary of the device that developed by liquid developer of expression.
Symbol description:
21Y, 21K-photosensitive drums (the sub-image load is held body); 29-the end of a thread; A 293-substrate (substrate); 295-light emitting device group; 295C-light emitting device group row; 2951-light-emitting component; 2951R-light-emitting component is capable; 299-lens arra; LS-lens; SP-point; A SG-group; MD-main scanning direction (first direction); SD-sub scanning direction (second direction); LGD-vertically; LTD-width; WL-wiring; Pel-light-emitting component at interval.
The specific embodiment
A. term explanation
Before the explanation embodiments of the invention, the term that uses is in this manual described.
Fig. 1 and Fig. 2 are the key diagrams of the term that uses in this specification.Here, use these figure, put the term that uses in this specification in order.In this manual, the throughput direction on the surface (image planes IP) of photosensitive drums 21 is defined as sub scanning direction SD, will with this sub scanning direction SD quadrature or roughly the direction of quadrature be defined as main scanning direction MD.In addition, the end of a thread 29, the mode corresponding with main scanning direction MD according to its vertical LGD, that its width LTD is corresponding with sub scanning direction SD is for the surface (image planes IP) of photosensitive drums 21 and dispose.
A plurality of lens LS that will have with lens arra 299 are defined as light emitting device group 295 with the set of man-to-man corresponding relation at a substrate 293 configurations a plurality of (in Fig. 1 and Fig. 2 8) light-emitting component 2951.Promptly in a substrate 293, the light emitting device group 295 that is made of a plurality of light-emitting components 2951 disposes respectively for a plurality of lens LS.In addition, from the light beam of light emitting device group 295 by the lens LS corresponding with this light emitting device group 295 to image planes IP imaging, the sets definition of a plurality of somes SP that will form at image planes IP is a some group SG.Promptly corresponding one to one with a plurality of light emitting device group 295, thus a plurality of some group SG can be formed.In addition, in each point group SG, will on main scanning direction MD and sub scanning direction SD, be defined as first point by the point of upstream.And, will be defined as first light-emitting component with first corresponding light-emitting component 2951.
In addition, shown in the column of Fig. 2 " on the image planes ", defining point group row SGR, some group row SGC.Be about to be defined as a group row SGR at a plurality of some group SG that main scanning direction MD arranges.And the some group row SGR of multirow disposes at sub scanning direction SD with given some group between-line spacing Psgr.In addition, will be defined as a group row SGC with a group between-line spacing Psgr and at main scanning direction MD with a plurality of (in Fig. 2,3) some group SG that group interval Psg arranges at sub scanning direction SD.In addition, some group between-line spacing Psgr be sub scanning direction SD 2 some group row SGR geometric center of gravity separately adjacent one another are, in the distance of sub scanning direction SD.In addition, the some group at interval Psg be main scanning direction MD 2 some group SG geometric center of gravity separately adjacent one another are, in the distance of main scanning direction MD.
Shown in the column of Fig. 2 " lens arra ", the capable LSR of definition lens, lens arrays LSC.Be about to be defined as the capable LSR of lens at a plurality of lens LS of vertically LGD arrangement.And the capable LSR of the lens of multirow is to give fix-focus lens between-line spacing Plsr in width LTD alignment arrangements.In addition, will be defined as lens arrays LSC with lens between-line spacing Plsr and at vertical LGD with a plurality of (in Fig. 2,3) lens LS that lens interval Pls arranges at width LTD.In addition, lens between-line spacing Plsr be width LTD 2 capable LSR of lens geometric center of gravity separately adjacent one another are, in the distance of width LTD.In addition, lens at interval Pls be vertical LGD 2 lens LS geometric center of gravity separately adjacent one another are, in the vertical distance of LGD.
Shown in the column of Fig. 2 " substrate ", definition light emitting device group row 295R, light emitting device group row 295C.Be about to be defined as light emitting device group row 295R in a plurality of light emitting device group 295 of vertically LGD arrangement.And, the light emitting device group row 295R of multirow with given light emitting device group between-line spacing Pegr in width LTD alignment arrangements.In addition, will be defined as light emitting device group row 295C with light emitting device group between-line spacing Pegr and at vertical LGD with a plurality of (in Fig. 2,3) light emitting device group 295 that light emitting device group interval Peg arranges at width LTD.In addition, light emitting device group between-line spacing Pegr be width LTD 2 light emitting device group row 295R geometric center of gravity separately adjacent one another are, in the distance of width LTD.In addition, light emitting device group at interval Peg be vertical LGD 2 light emitting device group 295 geometric center of gravity separately adjacent one another are, in the vertical distance of LGD.
Shown in the column of Fig. 2 " light emitting device group ", the capable 2951R of definition light-emitting component, columns of light elements 2951C.Promptly in each light emitting device group 295, will be defined as the capable 2951R of light-emitting component at a plurality of light-emitting components 2951 of vertically LGD arrangement.And, the capable 2951R of the light-emitting component of multirow with given light-emitting component between-line spacing Pelr in width LTD alignment arrangements.In addition, will be defined as columns of light elements 2951C with light-emitting component between-line spacing Pelr and at vertical LGD with a plurality of (in Fig. 2,2) light-emitting component 2951 that light-emitting component interval Pel arranges at width LTD.In addition, light-emitting component between-line spacing Pelr be width LTD 2 capable 2951R of light-emitting component geometric center of gravity separately adjacent one another are, in the distance of width LTD.In addition, light-emitting component at interval Pel be vertical LGD 2 light-emitting components capable 2951 geometric center of gravity separately adjacent one another are, in the vertical distance of LGD.
Shown in the column of Fig. 2 " some group ", the capable SPR of defining point, point range SPC.Promptly in each point group SG, will be defined as a row SPR at a plurality of somes SP of vertically LGD arrangement.And, the capable SPR of point of multirow with given some between-line spacing Pspr in width LTD alignment arrangements.In addition, will put due to being point range SPC with some a plurality of (in a Fig. 2,2) that interval Psp arranges with a between-line spacing Pspr and at vertical LGD at width LTD.In addition, some between-line spacing Pspr be sub scanning direction SD 2 capable SPR of some geometric center of gravity separately adjacent one another are, in the distance of sub scanning direction SD.In addition, at interval Psp be main scanning direction MD 2 some SP geometric center of gravity separately adjacent one another are, in the vertical distance of LGD.
B. embodiment
Fig. 3 is the figure of an example of expression image processing system of the present invention.In addition, Fig. 4 is the figure of electric structure of the image processing system of presentation graphs 3.This device is that the ink powder that can carry out overlapping black (K), cyan (C), carmetta (M), yellow (Y) 4 looks selectively forms the color mode of coloured image, only uses the ink powder of black (K) to form the image processing system of the white-black pattern of black white image.In addition, Fig. 3 is figure corresponding when carrying out with color mode.In this image processing system, if provide image to form instruction to master controller MC with CPU or memory etc. from external device (ED)s such as main frames, this master controller MC just provide control signal to engine controller EC, and will form the corresponding video data VD of instruction with image and provide to head controller HC.In addition, this head controller HC controls the end of a thread 29 of all kinds according to the video data VD that comes autonomous controller MC with from vertical synchronizing signal Vsync and the parameter value of engine controller EC.In view of the above, the EG of engine portion carries out given image and forms action, forms on paper such as cellophane papers to form with image at carbon paper, copying paper, with paper and OHP and instructs corresponding image.
In the chassis body 3 that image processing system has, be provided with power supply circuit board, master controller MC, engine controller EC and head controller HC are carried out built-in Denso product box 5.In addition, also in chassis body 3 configuration image form unit 7, dubs unit 8 and paper supply unit 11.In addition, in Fig. 3,2 copied cellses 12 of right side configuration, fixation unit 13, paper guiding elements 15 in chassis body 3.In addition, paper supply unit 11 can freely load and unload for apparatus main body 1.And, about this paper supply unit 11 and dubs unit 8, can take off place under repair or replacing respectively.
4 images that image formation unit 7 has the image that forms a plurality of different colours form station Y (being used for yellow), M (being used for carmetta), C (being used for cyan), K (being used for black).In addition, each image forms station Y, M, C, K are provided with the columnar photosensitive drums 21 that has the surface of given length at main scanning direction MD.And each image formation station Y, M, C, K form the ink powder picture of corresponding color respectively on the surface of photosensitive drums 21.Photosensitive drums is configured to axially and main scanning direction MD almost parallel.In addition, each photosensitive drums 21 is connected with the drive motors of special use respectively, and the direction of arrow D21 drives with the given speed rotation in the drawings.In view of the above, the surface of photosensitive drums 21, with main scanning direction MD quadrature or roughly the sub scanning direction SD of quadrature carry.In addition, around photosensitive drums 21, along direction of rotation, configuration electro-mechanical part 23, the end of a thread 29, development section 25 and photoreceptor cleaner 27.And, by these function portions, carry out charged action, sub-image formation action and ink powder developing operation.Therefore, when carrying out color mode, to form the dubs 81 overlapping coloured images that form that ink powder picture that station Y, M, C, K form has in dubs unit 8 with all images, and when carrying out white-black pattern, and only use to form the ink powder that the K that stands forms by image and look like to form black white image.In addition, in Fig. 3, it is mutually the same that each image of image formation unit 7 forms station structure, so for convenience, only the image to a part forms the station diacritic, forms station, ellipsis about other images.
Electro-mechanical part 23 has the charged roller that its surface is made of elastic caoutchouc.This charged roller contacts on the surface of charged position with photosensitive drums 21, drivenly constitutes rotatably, is accompanied by the spinning movement of photosensitive drums 21, for photosensitive drums 21, in driven direction with the driven rotation of peripheral speed.In addition, this charged roller is connected with charged bias voltage generating unit (omitting diagram), accepts the power supply from the charged bias voltage of charged bias voltage generating unit, makes the surface charging of photosensitive drums 21 in the charged position that electro-mechanical part 23 contacts with photosensitive drums 21.
The end of a thread 29 is vertically corresponding with main scanning direction MD with it, with its width and sub scanning direction SD accordingly, disposes the vertical and main scanning direction MD almost parallel of the end of a thread 29 for photosensitive drums 21.The end of a thread 29 has a plurality of light-emitting components in vertical alignment arrangements, and from photosensitive drums 21 separate configuration.And, from these light-emitting components to surface irradiation light by the charged photosensitive drums 21 of electro-mechanical part 23, thereby form electrostatic latent image on this surface.
Development section 25 has the developer roll 251 of holding ink powder in its surface load.And, by the development bias voltage that acts at developer roll 251 from the development bias voltage generating unit (omitting diagram) that is electrically connected with developer roll 251, the developing location that contacts with photosensitive drums 21 at developer roll 251, charged toner moves to photosensitive drums 21 from developer roll 251, will be become obvious existence by the electrostatic latent image that the end of a thread 29 forms.
The ink powder picture that becomes obvious existence at described developing location is after the direction of rotation D21 of photosensitive drums 21 carries, and 1 duplicating position TR1 contacting with each photosensitive drums 21 of the dubs 81 of Miao Shuing in the back copies to dubs 81 1 time.
In addition, in the present embodiment,, and, contact, photoreceptor cleaner 27 is set with the surface of photosensitive drums 21 in the upstream of electro-mechanical part 23 side in downstream one side of 1 duplicating position TR1 of the direction of rotation D21 of photosensitive drums 21.This photoreceptor cleaner 27 contacts with the surface of photosensitive drums, and after duplicating for 1 time, the ink powder at the remained on surface of photosensitive drums 21 is removed in cleaning.
Dubs unit 8 has driven roller 82, in Fig. 3 at the driven voller 83 (scraper plate opposed roll) of the left side of driven roller 82 configuration, the dubs 81 that is erected on these rollers and drives to direction (throughput direction) circulation of diagram arrow D81.In addition, dubs unit 8 has when the installation of photoreceptor cartridge in the inboard of dubs 81, forms the photosensitive drums 21 that station Y, M, C, K have for each image, respectively with one to one relatively 4 of configuration duplicate roller 85Y, 85M, 85C, 85K 1 time.Duplicating roller 85 for these 1 time is electrically connected with 1 replica biased generating unit (omitting diagram) respectively.And, as described later, when carrying out color mode, as shown in Figure 3, duplicate roller 85Y, 85M, 85C, 85K location in image formation station Y, M, C, K one side with whole 1 time, push dubs 81 to image and form photosensitive drums 21 and the contact with it that station Y, M, C, K have respectively, between each photosensitive drums 21 and dubs 81, form 1 duplicating position TR1.And, in suitable timing, from described 1 replica biased generating unit to duplicate for 1 time roller 85 apply 1 time replica biased, the lip-deep ink powder picture that will be formed on each photosensitive drums 21 is at 1 time corresponding respectively duplicating position TR1, copy to dubs 81 surfaces, form coloured image.
On the other hand, when carrying out white-black pattern, make 4 duplicate for 1 time in the roller 85 colored duplicate for 1 time roller 85Y, 85M, 85C respectively from relative image form station Y, M, C leaves, and only make black and white duplicate roller 85K for 1 time and contact, contact with dubs 81 thereby only make image form station K with image formation station K.Its result only duplicates for 1 time between roller 85K and the image formation station K in black and white and forms 1 duplicating position TR1.Then, in suitable timing, from described 1 replica biased generating unit to black and white duplicate for 1 time roller 85K apply 1 time replica biased, the ink powder picture that will form on the surface of each photosensitive drums 21 copy to dubs 81 surfaces at 1 duplicating position TR1, form black white image.
And dubs unit 8 has in black and white and duplicates downstream one side of roller 85K for 1 time and at the downstream guide reel 86 of the upstream of driven roller 82 side configuration.In addition, this downstream guide reel 86 duplicates for 1 time on the public internal tangent that 1 time of 1 duplicating position TR1 that photosensitive drums 21 that roller 85K and image form station K contact formation duplicates roller 85K and photosensitive drums 21 in black and white, contacts with dubs 81.
Driven roller 82 drives the direction circulation of dubs 81 at diagram arrow D81, and holds a concurrent post the reserve roller that duplicates roller 121 for 2 times.Form about thickness 3mm at the periphery of driven roller 82, specific insulation is smaller or equal to the rubber layer of 1000k Ω cm, by the metal ground that is coupling, as duplicating 2 replica biased conductive path that roller 121 is supplied with by 2 times from omitting illustrated 2 replica biased generating units.By the rubber layer that has high friction and have impact absorbency is set at driven roller 82, paper is difficult to pass to dubs 81 to the driven roller 82 and the impact of contact portion (2 duplicating position TR2) when entering of duplicating roller 121 for 2 times, can prevent deterioration of image.
Paper supply unit 11 comprises sheet feed section, this sheet feed section have can stacked maintenance paper paper feeding cassette 77 and from paper feeding cassette 77 one by one with the pick-up roller 79 of sheet feeder.By pick-up roller 79 from the paper of sheet feed section paper supply hinder roller to 80 adjust paper supplies regularly after, along 15 pairs of 2 duplicating position TR2 paper supplies of paper guiding elements.
Duplicate roller 121 for 2 times for dubs 81, be set to freely to contact, leave,, drive and make its contact, leave by duplicating roller driving mechanism (omitting diagram) for 2 times.Fixation unit 13 has: heater such as built-in halogen heater and the warm-up mill 131 that rotates freely, the pressurization part 132 of pushing this warm-up mill 131.And at the paper of its 2 duplicating images in surface, the clamping part that is formed to the heating tape 1323 by warm-up mill 131 and pressurization part 132 by paper guiding elements 15 guides, this clamping part with to fixed temperature with the thermal image photographic fixing.Pressurization part 132 is made of 2 rollers 1321,1322 and the pressure zone 1323 that adds that is erected on them.And, add the tape holder that sets up by 2 rollers 1321,1322 in the surface of pressure zone 1323 and establish the periphery that face is pushed warm-up mill 131, by warm-up mill 131 with add the clamping part that pressure zone 1323 forms and constitute with broadening.In addition, accept the paper sheet delivery of photographic fixing processing like this to the facial row's paper disc 4 of going up that is arranged on chassis body 3.
In addition, relative with scraper plate opposed roll 83 in this device, configuration cleaning portion 71.Cleaning portion 71 has cleaning scraper plate 711 and waste toner box 713.Cleaning scraper plate 711 contacts its top ends by dubs 81 with scraper plate opposed roll 83, remove at secondary and duplicate afterwards at foreign matters such as residual ink powder of dubs or paper powder.Then, the foreign matter of removing is like this reclaimed by waste toner box 713.In addition, cleaning scraper plate 711 and waste toner box 713 constitute integratedly with scraper plate opposed roll 83.Therefore, as described below, when scraper plate opposed roll 83 moved, with scraper plate opposed roll 83, cleaning scraper plate 711 and waste toner box 713 also moved.
Fig. 5 is the stereogram of the summary of expression the end of a thread of the present invention.In addition, Fig. 6 is the width cutaway view of the end of a thread shown in Figure 5.As mentioned above, it is corresponding with main scanning direction MD that the end of a thread 29 is configured to its vertical LGD for photosensitive drums 21, and its width LTD is corresponding with sub scanning direction SD simultaneously.In addition, vertical LGD and width LTD quadrature roughly each other.The end of a thread 29 has box 291, and at the two ends of vertical LGD of relevant box 291 alignment pin 2911 and screw patchhole 2912 is set.And, relevant alignment pin 2911 is embedded, covering photosensitive drums 21 and for photosensitive drums 21 and the locating hole (omitting diagram) that the photoreceptor of location lid (omitting diagram) perforation is provided with, the end of a thread 29 is for photosensitive drums 21 location.And by screw patchhole 2912, the screw hole (omission diagram) that covers at photoreceptor screws in fixed screw, and is fixing, and the end of a thread 29 is located, fixed for photosensitive drums 21.
Box 291 is keeping lens arra 299 with the surperficial relative position of photosensitive drums 21, and portion within it, with the order near this lens arra 299, has a shading member 297 and a substrate 293.Substrate 293 is formed by material (for example glass) that can transmitted beam.In addition, at the back side of a substrate 293 face of lens arra 299 opposite sides (in 2 faces that a substrate 293 has with), that organic EL (Electro-Luminescence) element of end light emitting-type is a plurality of as light-emitting component 2951 configurations.These light-emitting components 2951 are grouped into each light emitting device group 295 as described later, configuration.And from the beginning the light beam that penetrates from each light emitting device group 295 sees through to the surface at the back side of substrate 293, goes to shading member 297.
At shading member 297, for a plurality of light emitting device group 295, boring a hole in man-to-man mode is provided with a plurality of light-conductive holes 2971.In addition, relevant light-conductive hole 2971, as will with the line of the normal parallel of head substrate 293 as central shaft, connect shading member 297 roughly columned hole and the setting of boring a hole.Therefore, from the light beam that light emitting device group 295 penetrates, go to the light beam beyond the light-conductive hole 2971 corresponding, by 297 shadings of shading member with this light emitting device group 295.Like this, the light that penetrates from a light emitting device group 295 all goes to lens arra 299 by identical light-conductive hole 2971, and prevents the light beam interference to each other of coming out from different light emitting device group 295 by shading member 297.And, the light beam by the light-conductive hole 2971 that is provided with in shading member 297 perforation by lens arra 299 on the surface of photosensitive drums 21 as an imaging.
As shown in Figure 6, by fixer 2914, the back of the body covers 2913 pushes box 291 by a substrate 293.Be that fixer 2914 has the back of the body cover 2913 elastic force of pushing to box 291 1 sides, and, push back of the body lid by relevant elastic force, with the interior lights of box 291 hermetically (promptly the leak light not from box 291 inside is not invaded from the exterior light of box 291) seal.In addition, fixer 2914 vertically is provided with many places at box 291.In addition, light emitting device group 295 is covered by containment member 294.
Fig. 7 is the stereogram of the summary of expression lens arra.In addition, Fig. 8 is the cutaway view of vertical LGD of lens arra.Lens arra 299 has lens-substrate 2991.And, form first LSFf of lens LS at the back side of this lens-substrate 2991 2991B, and form second LSFs of lens LS at the surperficial 2991A of lens-substrate 2991.And, with first LSFf of lens respect to one another and second LSFs, by the lens-substrate 2991 that this 2 face clips, work as a lens LS.In addition, first LSFf and second LSFs of lens LS for example can form with resin.
Lens arra 299 is configured to a plurality of lens LS optical axis OA is separately become almost parallel each other.In addition, lens arra 299 back side face of light-emitting component 2951 (configuration) quadrature roughly that is configured to optical axis OA Yu the substrate 293 of lens LS.Lens LS is for light emitting device group 295, to be provided with one to one; Corresponding with the configuration of the light emitting device group of describing later 295, a plurality of lens LS dispose two-dimensionally.Promptly at width LTD, the LGD arrangement is a plurality of along the longitudinal at the lens arrays LSC of 3 the lens LS of position configuration that differ from one another.
Fig. 9 is the figure of structure at the back side of an expression substrate, is equivalent to the from the beginning situation at the surface observation back side of substrate.In addition, in Fig. 9, lens LS represents with double dot dash line, but this is in order to represent for lens LS, so that light emitting device group 295 to be set one to one, does not represent that lens LS is configured in a substrate back.As shown in Figure 9, at width LTD, the LGD arrangement is a plurality of along the longitudinal at the light emitting device group row 295C of 3 the lens LS of position configuration that differ from one another.In other words, LGD arranges the light emitting device group row 295R of a plurality of light emitting device group 295 at width LTD arrangement 3 row (295R_A, 295R_B, 295R_C) along the longitudinal.At this moment, at vertical LGD, the position of each light emitting device group 295 differs from one another each light emitting device group row 295R of ground in the vertical LGD configuration of staggering mutually.In the present embodiment, dispose light emitting device group 295 like this, so as detailed description such as Figure 14 was used in the back, each light emitting device group 295 formed a some sub-image in the exposure area that main scanning direction MD differs from one another.And the light emitting device group 295 (for example light emitting device group 2951,295_2, perhaps light emitting device group 2952,2953 etc.) that forms the some sub-image in the adjacent exposure area of main scanning direction MD is in the width LTD configuration of staggering each other.
Figure 10 is the vertical view of the structure of expression light emitting device group, the column of Figure 10 " light emitting device group " is mainly represented the relation of light emitting device group 295 and this light emitting device group and wiring WL, and the column of Figure 10 " light-emitting component " is mainly represented the relation of light-emitting component and wiring WL.As shown in figure 10, arrange the capable 2951R of light-emitting component of 4 light-emitting components 2951 2 of width LTD arrangements at vertical LGD.The capable 2951R of each light-emitting component is in the vertical LGD light-emitting component Pel configuration at interval of only staggering each other.Therefore, the back is used Figure 17 to wait and is described, and each light-emitting component 2951_1~2951_8 arranges at main scanning direction MD luminous with the mobile corresponding timing on photosensitive drums 21 surfaces, forms some sub-image Lsp_1~Lsp_8.In addition, form by the light-emitting component 2951 that belongs to the capable 2951R of light-emitting component that differs from one another (for example the light-emitting component 2951_1 of Figure 10 and light-emitting component 2951_2) at the adjacent some sub-image of main scanning direction.Here, " light-emitting component is Pel at interval " is equivalent at main scanning direction MD adjacent, the interval of vertical LGD of 2 light-emitting components 2951 (for example light-emitting component 2951_7,2951_8) of formation point sub-image.
At each light-emitting component 2951 connecting wiring WL of light emitting device group 295, for example, at light-emitting component 2951_1 connecting wiring WL_1, and at light-emitting component 2951_2 connecting wiring WL_2.In addition, these wirings WL draws to a side one side of the width LTD of light emitting device group 295 (below, only be called a side one side).If describe in detail, each WL_1~WL8 that connects up is connected to light-emitting component 2951 from the side (side one side) of drawing of this wiring WL, and each WL_1~WL_8 that connects up is to straight the drawing of a side one side of light emitting device group 295 (with reference to the column of Figure 10 " light emitting device group ").
In addition, the WL_1~WL_8 that respectively connects up that draws from light emitting device group 295 arranges at this vertical LGD with the configuration sequence of the vertical LGD in the light emitting device group 295 of the light-emitting component 2951 of linking objective.Promptly shown in the column of Figure 10 " light emitting device group ", configuration sequence with light-emitting component 2951_1~2951~8n, at vertical LGD 8 light-emitting components 2951 are set, and configuration sequence according to the light-emitting component 2951 of linking objective, at vertical LGD wiring WL_1~WL_8 is set, arranges at vertical LGD with the order of wiring WL_1~WL_8.
In addition, in the present embodiment, in order fully to guarantee the light quantity of light-emitting component 2951, the diameter Del of vertical LGD of light-emitting component 2951 is set at bigger than light-emitting component interval Pel (at interval).
Corresponding with each light emitting device group row 295R_A, 295R_B, 295R_C, by described wiring WL drive circuit DC_A (being used for each light emitting device group row 295R_A), DC_B (being used for each light emitting device group row 295R_B), DC_C (being used for each light emitting device group row 295R_C) are set, these drive circuits DC_A etc. for example constitute (Figure 13) by TFT (Thin Film Transistor).If drive circuit DC_A etc. provides the driving signal to each light-emitting component 2951, each light-emitting component 2951 just penetrates the light beam of the wavelength that is equal to each other.The light-emitting area of this light-emitting component 2951 is so-called complete diffusingsurface light sources, and the light beam that penetrates from light-emitting area is according to lambert's cosine law.
Drive actions according to video data VD control drive circuit DC.If be that master controller MC obtains from head controller HC and vertically requires signal VREQ, just generate the video data VD (Fig. 4) of 1 page of branch.In addition, master controller MC just with the each 1 line branch of video data VD, sends to head controller HC whenever the level that obtains from head controller HC requires signal HREQ.Then, head controller HC is according to the video data VD control drive circuit DC that receives.Below, the concrete structure that realizes these control actions is described.
In addition, in the present embodiment, described each signal promptly requires signal VREQ, HREQ and sends to the video data VD of head controller HC from master controller MC of all kinds corresponding with YMCK from head controller HC to what master controller MC sent, has 4 groups.Below, as required, each signal is paid the symbol of hyphen and expression color, carry out the difference of color.For example, being used for yellow vertically require signal, level requires signal and video data to be expressed as VREQ-Y, HREQ-Y, VD-Y respectively.
Figure 11 is the block diagram of the structure of expression master controller.Master controller MC has image processing part 51, master's one side communication module 52 of the view data that comprises the image formation instruction that provides from external device (ED) being carried out necessary signal processing.The look conversion process piece 511 that rgb image data is expanded into the CMYK view data with each ink powder look corresponding is set in image processing part 51.And, with each ink powder look corresponding in image processing part 51, image processing block 512Y (being used for yellow), 512M (being used for carmetta), 512C (being used for cyan), 512K (being used for black) are set, for view data, carry out following signal and handle.Promptly at image processing block 512Y etc.,, view data is carried out bitmap launch, and the data after bitmap launched, carry out that screen is handled and gamma correction etc., generation video data VD-Y according to the exploring degree of the end of a thread 29.Like this, view data is transformed to the information of pixel as least unit.Here, pixel is the least unit that constitutes the image of the end of a thread 29 formation.Vertically requiring each input of signal VREQ-Y, about the image of 1 page of branch, carry out this a series of processing, the video data VD-Y of per 1 line of generation etc. are successively to main communication module 52 outputs.
In a main side communication module 52, from video data VD-Y, VD-M, VD-C, the VD-K time-sharing multiplex of 4 looks of image processing part 51 output, and the video data VD after multiplexed sends head controller HC serial by the sub-TX+ of differential output end, TX-.On the other hand, require signal HREQ-Y, HREQ-M, HREQ-C, HREQ-K by the sub-RX+ of differential input terminal, RX-from vertically require signal VREQ-Y, VREQ-M, VREQ-C, VREQ-K and the level that head controller HC imports time-sharing multiplex.These require the parallel expansion of signal VREQ, HREQ, and the signal VREQ (VREQ-Y etc.) that vertically requires of all kinds imports to the image processing block 512 (512Y etc.) of the color of correspondence.
Figure 12 is the block diagram of the structure of expression head controller.Head controller HC has a first side communication module 53 and a control module 54.In first side communication module 53, from the beginning the signal that respectively requires of 4 looks of control module 54 outputs promptly vertically requires signal VREQ-Y, VREQ-M, VRQ-C, VREQ-K and level to require signal HREQ-Y, HREQ-M, HREQ-C, HREQ-K time-sharing multiplex.This time-sharing multiplex require signal to pass through the sub-TX+ of differential output end, TX-master controller MC serial is sent.On the other hand, by the sub-RX+ of differential input terminal, RX-video data VD-Y, VD-M, VD-C, VD-K from master controller MC input time-sharing multiplex.Parallel expansion such as these video datas VD-Y are to the inputs such as a controll block 541Y of the color of correspondence.
In a control module 54,, 4 groups a controll block 541Y (being used for yellow), 514M (being used for carmetta), 514C (being used for cyan), 514K (being used for black) are set with of all kinds corresponding.Controll block 541Y etc. are in order to require video data VD-Y etc., and output respectively requires signal VREQ-Y, HREQ-Y etc., on the other hand according to the video data VD-Y that receives etc., and the exposure actions of the end of a thread 29 of the color that control is corresponding.
Figure 13 is the block diagram of the structure of the controll block in the expression present embodiment.Here, Y the controll block 541Y that is used for yellow is described.Other each piece 541M, 541C, 541K also construct identical.In Y controll block 410Y, be provided with according to the synchronizing signal Vsync that provides from engine controller EC, generate and require that signal VREQ-Y, HREQ-Y's require signal generating unit 542.If require signal generating unit 542 to receive synchronizing signal Vsync, just begin the counting of timer internal, if through given stand-by time, just the beginning of output expression page or leaf vertically requires signal VREQ-Y.Then vertically require the output of signal VREQ-Y, the level of quantity that requires signal generating unit 542 to export the line number of the image that is equivalent to constitute 1 page repeatedly with certain cycle requires signal HREQ-Y.These require signal VREQ-Y, HREQ-Y to send to first side communication module 53, with other colors require the signal time-sharing multiplex, send to master controller MC.
Level requires signal HREQ-Y also to cutting apart 543 inputs of HREQ signal generating unit, cut apart that HREQ signal generating unit 543 will import to require signal HREQ-Y for example to increase progressively be 16 times, the HREQ signal is cut apart in generation.This cuts apart the HREQ signal to 544 inputs of sequence of light control part, and sequence of light control part 544 sorts video data VD-Y according to cutting apart the HREQ signal.The ordering of relevant data is the video data VD-Y that will receive from each 1 line of the beginning of page or leaf by the rank order that drive circuit DC_A etc. is sent.
Promptly as described later, each light emitting device group row 295R only is offset subscan point group each other at sub scanning direction SD and forms some group SG (Figure 14~Figure 16 etc.) in the position of Psgs at interval.Therefore,, be necessary to consider the difference of the formation position of such some group SG, video data VD-Y is sent drive circuit DC_A in order arrange to form the some sub-image that 1 line divides at main scanning direction MD.Particularly, with subscan point group at interval Psgs divided by subscan pixel Rsd at interval, the value obtained is during as " delay line number ", to each light emitting device group row 295R_A etc., at sub scanning direction SD, only the video data VD-Y that departs from each other with the delay line number sorts video data VD-Y on identical transmission timed sending ground.If for example, in the timing that light emitting device group row 295R_A is sent the video data VD-Y of the 1st line, light emitting device group row 295R_B is sent the video data VD-Y of the 161st line (=1 line+delay line number), light emitting device group row 295R_C is sent the video data VD-Y of the 321st line (=1 line+2 * delay line number).
The video data VD-Y that output state 545 will sort like this supplies with each drive circuit DC_A, DC_B, DC_C by the data conveyer line.These output states 545 for example are made of shift register, data conveyer line publicization between drive circuit that is connected with each drive circuit DC_A etc. from output state 545.And drive circuit DC_A etc. drive light-emitting component 2951 and make it luminous according to the video data VD-Y that supplies with from output state 545.At this moment, the driving of drive circuit DC_A etc. is luminous carries out synchronously with the luminous switching timing Tu that supplies with from the luminous timing generating unit 546 of next explanation.
Cut apart the HREQ signal also to luminous timing generating unit 546 inputs, luminous timing generating unit 546 is cut apart the HREQ signal according to this, generates luminous switching timing Tu.Luminous timing generating unit 546 is connected by a luminous timing controlled line LTu and each drive circuit DC_A etc., and luminous timing controlled line LTu is publicization between drive circuit respectively.Luminous timing generating unit 546 is supplied with luminous switching timing Tu by luminous timing controlled line LTu to each drive circuit DC_A etc.Drive circuit DC_A etc. according to the video data VD-Y that supplies with in advance, drive the light-emitting component 2951 of the light emitting device group row 295R_A etc. of luminous correspondence at luminous switching timing Tu.By luminous according to the driving of luminous switching timing Tu control light-emitting component 2951, the pixel PX to photosensitive drum surface can form each point SP.Therefore, the point that below explanation is relevant forms action.
Figure 14 is used to illustrate a stereogram that forms action, and Figure 15 is the figure of the some group of representing that luminous switching timing Tu in the present embodiment forms at photosensitive drum surface.In addition, in Figure 14, omit the record of lens arra 299.Here, at first after the relation of explanation point group SG and pixel PX, illustrate that the point of luminous switching timing Tu forms.
As shown in figure 14, each light emitting device group 295 can form some group SG at the exposure area ER that differs from one another at main scanning direction MD.Here, some group SG is the luminous simultaneously and set of a plurality of somes SP forming of whole light-emitting components 2951 of light emitting device group 295.In addition, form some SP like this, form some sub-images in scope by this some exposure.In addition, in the present embodiment, 2 light emitting device group 295 (for example light emitting device group 295_1,295_2, perhaps light emitting device group 2952,2953 etc.) that form the some sub-image at the adjacent exposure area ER of main scanning direction MD are in the width LTD configuration of staggering each other.Particularly, 3 light emitting device group 295 that can form some group SG at the continuous exposure area ER of main scanning direction MD are in the width LTD configuration of staggering each other.Promptly for example: can form some 3 light emitting device group 295_1,2952,2953 of group SG_1, SG2, SG3 in the width LTD configuration of staggering each other at main scanning direction MD continuous exposure area ER_1, ER_2, ER_3.And, constituting light emitting device group row 295C by these 3 light emitting device group 295, a plurality of light emitting device group row 295C LGD along the longitudinal arrange.
Shown in the dotted line of Figure 15, on the surface of photosensitive drums 21 a plurality of pixel PX are set virtually, arrange the row of the pixel PX of 1 line branch at main scanning direction MD and arrange multi-thread at sub scanning direction SD.Between the adjacent image point of main scanning direction MD is main scanning pixel Rmd at interval at interval, and between the adjacent image point of sub scanning direction SD is subscan pixel Rsd at interval at interval.In these figure, main scanning exploring degree and subscan exploring degree all are 600dpi (dot per inch), and main scanning pixel interval Rmd and subscan pixel Rsd at interval are equal to each other.Here, the exploring degree is the density of pixel, represents about 1 inch number of picture elements.
, the pixel of photosensitive drum surface at interval can be from for example obtaining at the pixel of the image that forms with paper at interval., at sub scanning direction SD, the translational speed of photosensitive drum surface and slightly different sometimes with the transporting velocity of paper, at this moment, the subscan pixel is difference at photosensitive drum surface and between with paper at interval.Therefore, obtain from the image that forms with paper to the subscan pixel of photosensitive drum surface at interval the time, can multiply by from the subscan pixel interval of obtaining with the image on the paper with the translational speed of photosensitive drum surface with the velocity ratio of the transporting velocity of paper.In addition, as this velocity ratio, for example can use value of putting down in writing in the specification of image processing systems such as printer etc.
As Figure 14, shown in Figure 15, at each point group SG, 2 the capable SPRa of point, SPRb arrange with a between-line spacing Pspr at sub scanning direction SD.In Figure 15, for a row, pay symbol SPRa, SPRb, to each other capable about the point of paying identical symbol, the position of the sub scanning direction SD in the some group SG (subscan position in the group) is equal to each other.Here, " subscan position in the group " is the position of object (point or some row) for the sub scanning direction SD of the MD-SD axes of coordinates that is provided with at each point group SG, for example in Figure 16, the subscan position is Psd1 in the group of some SP, and the subscan position is position Psd2 in the group of some row SPR.In addition, Figure 16 is the key diagram of subscan position in the group.
In the present embodiment, this between-line spacing Pspr be set at the subscan pixel at interval Rsd integral multiple (1 times) (Figure 15).In addition, by the some group SG that mutual different light emitting device group row 295R forms, be located at sub scanning direction SD different position mutually; The interval of the sub scanning direction between these some groups SG (subscan point group is Psgs at interval) is set at the subscan pixel integral multiple (160 times) of Rsd at interval.In addition, in the present embodiment, vertically the interval Pegr between the light emitting device group of LTD and vertically the interval Plsr between the lens LS of LTD are equal to each other, and according to the mode of subscan pixel integral multiple (160 times) at interval, constitute the end of a thread 29.Promptly, can easily subscan point group interval Psgs be set at the subscan pixel integral multiple of Rsd at interval by so constituting the end of a thread 29.
So, in the end of a thread of present embodiment, subscan point group Psgs at interval is set at the subscan pixel integral multiple of Rsd at interval.And in the present embodiment, at each point group SG, the interval between the some SP of the position formation that sub scanning direction SD is differing from one another is set at the subscan pixel integral multiple (1 times) of Rsd at interval.Promptly the interval Pspr of the sub scanning direction SD between the capable SPRa of point, SPRb that sub scanning direction SD arranges is set at the subscan pixel integral multiple (1 times) of Rsd at interval.
Therefore, in the present embodiment,, can form all some SP simultaneously to pixel PX at luminous switching timing Tu.Therefore, control whole light-emitting components 2951, just can suitably form a SP, can simplify the control of luminous switching timing at each pixel PX at same luminous switching timing Tu.In addition, can control whole light-emitting components 2951, so, can simplify the structure of the end of a thread 29 all can luminous timing controlled line LTu of public use between light emitting device group row 295R_A, 295R_B, the 295R_C at same luminous switching timing Tu.
And in the present embodiment, move at sub scanning direction SD on one side on the surface of photosensitive drums 21, and on one side at luminous timing Tu, each light-emitting component 2951 of light emitting device group is luminous, is formed on a plurality of somes sub-image Lsp that main scanning direction MD arranges.
Figure 17 is the figure that expression point sub-image forms an example of action.Shown in the column of Figure 17 " for the first time luminous switching timing Tu ", at luminous switching timing Tu, each light-emitting component 2951_1,2951_3 of the capable 2951Ra of light-emitting component (Figure 10), 2951_5,2951_7 (first light-emitting component) drive luminous, if form the each point SP of some row SPRa, for each pixel PX, just form some sub-image Lsp_1, Lsp_3, Lsp_5, Lsp_7 (first sub-image).Then, if, the surface of photosensitive drums 21 is only moved and is equivalent to subscan pixel 1 times the distance of Rsd (at interval) at interval, and at the luminous switching timing Tu second time, each light-emitting component 2951_2,2951_4 of the capable 2951Rb of light-emitting component, 2951_6,2951_8 (second light-emitting component) drive luminous.In view of the above, form the each point SP of some row SPRb,, just form some sub-image Lsp_2, Lsp_4, Lsp_6, Lsp_8 (second sub-image) for each pixel PX.Like this, according to moving of photosensitive drum surface, each light-emitting component 2951 is luminous, can be formed on the some sub-image Lsp that main scanning direction MD arranges.Like this, in the present embodiment, adjacent at main scanning direction MD and some sub-image (consecutive points sub-image) that produce is formed by 2 light-emitting components 2951 that belong to the capable 2951R of light-emitting component that differs from one another.Promptly for example form among 2 light-emitting component 2951R_1, the 2951R_2 of consecutive points sub-image Lsp1, Lsp2, light-emitting component 2951R_1 belongs to the capable 2951R_A of light-emitting component, and light-emitting component 2951R_2 belongs to the capable 2951R_B of light-emitting component.
In described embodiment, a plurality of light-emitting components 2951 are grouped into each light emitting device group 295 and are provided with.And 2 light emitting device group 295 that form the some sub-image in the adjacent exposure area ER of main scanning direction MD are in the width LTD configuration of staggering each other.Its result, as shown in Figure 9, light emitting device group 295 is provided with discretely at vertical LGD, so light emitting device group 295 can be set in the space than broad.Therefore, each light-emitting component 2951 that constitutes light emitting device group 295 also can increase than being easier to, and can form the some sub-image with enough light quantities.
And, in described embodiment, belong to the WL that respectively connects up that connects on the light-emitting component 2951 of same light emitting device group 295 and draw (Figure 10) to the same side of this light emitting device group (side one side in described embodiment) at width LTD.Therefore, in the present embodiment, can gather for the WL that respectively connects up of same light emitting device group 295 is one, arranges that on a substrate 293 simplification of wiring pattern becomes possibility.
In addition, each wiring WL is drawn to the same side of this light emitting device group, can make wiring distance become roughly the same easily to each light-emitting component 2951 by such.Therefore, the end of a thread 29 of described embodiment help suppressing the characteristics of luminescence of each light-emitting component 2951 skew, carry out good some sub-image.
In addition, in described embodiment, to belonging to each light-emitting component 2951 of same light emitting device group 295, wiring WL is connected with this light-emitting component 2951 from the side of drawing of this wiring WL.The connection status of such wiring WL for example with from the wiring WL an opposite side of drawing a side (Figure 10 " the opposing party's one side ") WL that will connect up compare with the situation that light-emitting component 2951 is connected, can shorten wiring distance.As a result, the simplification of wiring WL becomes possibility.
In addition, in described each embodiment, the WL that respectively connects up that draws from light emitting device group 295 is with the wiring order of the vertical LGD in the light emitting device group 295 of the light-emitting component 2951 of linking objective, in vertically LGD arrangement, realized the simplification of the light emitting control of each light-emitting component 2951.Be that drive circuit DC_A etc. provides the driving signal by wiring WL to each light-emitting component 2951.At this moment, in order suitably to form the some sub-image, it is correctly right to be necessary, the pairing light-emitting component 2951 of pixel that should form a sub-image provides the driving signal., if the configuration sequence of the arrangement of the WL that respectively connects up that draws and each light-emitting component 2951 have nothing to do, be messy, just might be corresponding with such cloth line morphology, the control of video data VD ordering etc. is necessitated.And in described embodiment, each WL that connects up arranges at vertical LGD with the configuration sequence of light-emitting component 2951.Therefore, the control of the ordering etc. of above-mentioned video data VD can be omitted, the light emitting control of light-emitting component 2951 can be simplified.
In addition, in described embodiment, MD is adjacent at main scanning direction, and 2 light-emitting components 2951 that form the some sub-image belong to the capable 2951R of the capable 2951R of the light-emitting component that differs from one another each light-emitting component of ground and stagger each other at vertical LGD.In other words, MD is adjacent at main scanning direction, and 2 light-emitting components 2951 that form the some sub-image are in the width LTD configuration of staggering each other.Therefore, at the capable 2951R of light-emitting component, can be than the interelement space B E (Figure 10) that obtains significantly between the light-emitting component of vertically LGD arrangement.Therefore, light-emitting component 2951 can be formed, so can increase the size of light-emitting component 2951 in than the space of broad.Its result at high-resolution, also can form the some sub-image with sufficient light quantity, and the formation of good some sub-image becomes possibility.
In addition, in described embodiment,, use organic EL as light-emitting component 2951.This organic EL ratio such as LED light quantities such as (Light Emitting Diode) is few.Therefore, for the structure of using organic EL, the present invention who is particularly suitable for using the size that can increase light-emitting component 2951.Embodiment is such especially as described, and the organic EL light quantity of end light emitting-type is few, so for the structure of the organic EL that uses end light emitting-type as light-emitting component 2951, be fit to use the present invention.
In described embodiment, main scanning direction MD and vertical LGD are equivalent to " first direction " of the present invention, sub scanning direction SD and width LTD are equivalent to " second direction " of the present invention, photosensitive drums 21 is equivalent to " the sub-image load is held body " of the present invention, the surface of photosensitive drums 21 is equivalent to " image planes " of the present invention, and a substrate 293 is equivalent to " substrate " of the present invention.In addition, the end of a thread 29 is equivalent to " photohead " of the present invention, and lens LS is equivalent to " imaging optical system " of the present invention, and some SP is equivalent to " light collecting part " of the present invention.
Other
In addition, the present invention is not limited to described embodiment, only otherwise break away from its aim, beyond above-mentioned form, can also carry out various changes.For example in described embodiment, constitute light emitting device group 295 by the 2 capable 2951R of light-emitting component that go that arrange at width LTD., the line number of the capable 2951R of light-emitting component is not limited to 2 row, can change as required.In addition, the number about the light-emitting component 2951 that constitutes the capable 2951R of each light-emitting component also can change as required.Particularly, for example also can carry out following change.
Figure 18 is the vertical view of other structures of expression light emitting device group.In Figure 18, in order to represent the relation of light emitting device group 295 and lens LS, lens LS represents with double dot dash line.In light emitting device group 295, the capable 2951R of light-emitting component that arranges 5 light-emitting components 2951 at vertical LGD arranges 4 row at width LTD.The capable 2951R of each light-emitting component is in the width LTD configuration of staggering each other, and each light-emitting component 2951 is positioned at the position that differs from one another at width LTD.And the capable 2951R of each light-emitting component can be formed on a plurality of somes sub-images that main scanning direction MD arranges with luminous with the mobile corresponding timing on photosensitive drums 21 surfaces.
Be connected the wiring WL on each light-emitting component 2951 of light emitting device group 295, all draw to a side one side of the width LTD of light emitting device group 295.Particularly in Figure 18, each WL that connects up is drawn out to the outside of lens LS.In addition, each WL that connects up is connected to light-emitting component 2951 from the side (side one side) of drawing of this wiring WL.These wirings WL that draws from light emitting device group 295 arranges at this vertical LGD with the configuration sequence of the vertical LGD in the light emitting device group 295 of the light-emitting component 2951 of linking objective.
In other structure shown in Figure 180, the WL that respectively connects up that is connected on the light-emitting component 2951 that belongs to same light emitting device group 295 draws to the same side of this light emitting device group (in described embodiment, a side one side) at width LTD.Therefore, can will gather be one, arrange that on a substrate 293 simplification of wiring pattern becomes possibility the WL that respectively connects up of light emitting device group 295.In addition, in this other structure, each WL that connects up arranges with the configuration sequence of light-emitting component 2951, can realize the simplification of the light emitting control of light-emitting component 2951.
In addition, in described embodiment, each WL that connects up is connected to light-emitting component 2951 from the side (side one side) of drawing of this wiring WL, and still, wiring WL also can be connected to light-emitting component 2951 as described below.Figure 19 is the vertical view of another other structures of expression light emitting device group.In light emitting device group 295, the capable 2951R of light-emitting component that arranges 6 light-emitting components 2951 at vertical LGD arranges 2 row at width LTD.The capable 2951R of each light-emitting component is in the width LTD configuration of staggering each other, and each light-emitting component 2951 is positioned at the position that differs from one another at width LTD.And the capable 2951R of each light-emitting component can be formed on a plurality of somes sub-images that main scanning direction MD arranges with luminous with the mobile corresponding timing on photosensitive drums 21 surfaces.
In addition, be connected the wiring WL on each light-emitting component 2951 of light emitting device group 295, all draw to a side one side of the width LTD of light emitting device group 295.In this, other structures of light emitting device group shown in Figure 19 and the above embodiments are common., structure shown in Figure 19 and the above embodiments are different in the method for attachment of light-emitting component 2951 at wiring WL.Promptly in structure shown in Figure 19,, be connected to light-emitting component from the opposite side of drawing a side (the opposing party's one side) of this wiring WL for the wiring WL of light-emitting component 2951_4,2951_6,2951_8,2951_10.
In other structure shown in Figure 19, the WL that respectively connects up that is connected on the light-emitting component 2951 that belongs to same light emitting device group 295 draws to the same side of this light emitting device group (in described embodiment, a side one side) at width LTD.Therefore, can will gather be one, arrange that on a substrate 293 simplification of wiring pattern becomes possibility the WL that respectively connects up of light emitting device group 295.In addition, in structure shown in Figure 19, not as shown in Figure 10, between the light-emitting component 2951 of wiring WL by a side's of light emitting device group 295 row, so can further increase the size of light-emitting component 2951.
In addition, can also constitute like that by Figure 20~Figure 22 as shown below.Here, Figure 20~Figure 22 is expression light emitting device group and the vertical view that is connected the variation of the wiring on this light emitting device group.These figure represent the from the beginning structure at the back side of a substrate 293 of the surperficial unilateral observation of substrate 293.In addition, in these figure, lens LS represents with double dot dash line, but the position relation in the vertical view of its expression light emitting device group 295 and lens LS does not represent that lens LS is configured in the back side of a substrate 293.
At first, describe from variation shown in Figure 20.In variation shown in Figure 20,6 light-emitting components 2951 are arranged as linearity at vertical LGD, constitute the capable 2951R of light-emitting component.In light emitting device group 295, the capable 2951R of light-emitting component of 3 row is configured in the diverse location of width LTD.The capable 2951R of each light-emitting component is at the mobile mutually light-emitting component of vertical LGD interval Pel, and the position of each light-emitting component 2951 differs from one another at vertical LGD.In addition, Pel is wideer at interval than light-emitting component for the diameter Del of vertical LGD of each light-emitting component 2951 (the vertically width of LGD).And, vertical LGD with light-emitting component at interval 2 light-emitting components 2951 (first light-emitting component, second light-emitting component) of Pel configuration at the adjacent formation point sub-image of main scanning direction MD.2 light-emitting components 2951 that promptly are formed on the adjacent some SP of main scanning direction MD belong to the different capable 2951R of light-emitting component, are configured in the position that differs from one another at width LTD.Therefore, in this variation, can increase light-emitting component 2951, form some SP, can carry out the formation of sub-image well with enough light quantities.
In addition, in this variation, for light emitting device group 295, at a side one side of width LTD, configuration driven circuit DC.This drive circuit DC is provided with each light emitting device group 295, can be by TFT formations such as (Thin Film Transistor).Each light-emitting component 2951 usefulness wiring WL (first wiring, second wiring) of drive circuit DC and light emitting device group 295 is electrically connected.The configuration of relevant wiring WL is as described below.At width LTD, connect the WL that respectively connects up in a side one side of light-emitting component 2951.And each WL that connects up draws to a side one side of width LTD.At this moment, be connected between the light-emitting component 2951 of wiring WL on the capable 2951R_2 of light-emitting component, the 2951R_3 and draw by the capable 2951R of light-emitting component beyond the linking objective.In addition, each connects up WL in vertical view, is drawn out to the outside of lens LS.Like this, the WL that respectively connects up that is drawn out to a side one side of width LTD for light emitting device group 295 is connected on the drive circuit DC.And drive circuit DC provides signal by wiring WL to each light-emitting component 2951, drives each light-emitting component 2951.
In this variation, the WL that respectively connects up that is connected on the light-emitting component 2951 draws to a side one side of width LTD.Therefore, it is one that the WL that each can be connected up gathers, and arranges.Therefore, the layout of wiring WL becomes easily, and this variation is fit to.
In this variation, the drive circuit DC (circuit) that is electrically connected with wiring WL is configured in a side one side of width LTD especially.Therefore, it is one that the wiring WL that is drawn out to a side one side of width LTD from each light-emitting component 2951 can gather, and DC is connected with drive circuit, and the layout of wiring WL becomes easy.And, to the such drive circuit DC of each light emitting device group 295 configuration, drive circuit DC can be set near each light emitting device group 295, can relatively shorten wiring WL.Its result, blunt few signal that can cause the parasitic capacitance of light-emitting component 2951 supply wiring WL is favourable so such structure forms action to good sub-image.
Below, variation shown in Figure 21 is described.In addition, the main discrepancy of the variation of the variation of Figure 21 and Figure 20 is to be connected the configuration of the wiring WL on the capable 2951R3 of light-emitting component.Therefore,, this discrepancy is described mainly,, pays suitable symbol, omit explanation about the common part of the variation of the variation of Figure 21 and Figure 20 following.As shown in figure 21, the wiring WL that is connected on the capable 2951R_3 of light-emitting component is circuitous, and the capable 2951R_2 of light-emitting component, 2951R_1 and the wiring WL that is connected with them beyond the linking objective draw to a side one side of the width LTD of light emitting device group 295.In view of the above, can suppress number, so same variation has the structure that helps increasing light-emitting component 2951 by the wiring WL between the light-emitting component 2951 of the capable 2951R_1 of light-emitting component, 2951R_2.
Below, the variation of Figure 22 is described.The characteristic of variation shown in Figure 22 is to be arranged on the contact CT of light-emitting component 2951, and other parts and embodiment shown in Figure 180 are common.Therefore,, the characteristic of the variation of Figure 22 is described mainly, pays respective symbol, omit explanation with the part that the embodiment of Figure 18 is common following.
Contact CT connects the ITO anode materials such as (Indium Tin Oxide) and the wiring WL of organic EL.And, in same variation, this contact CT near light-emitting component 2951 configurations, is realized the free degree of wiring WL.And the configuration of same variation docking point CT is worked hard, and produces following effect.If promptly contact CT be positioned at light-emitting component 2951 near, in the coating of the organic EL Material of the manufacture process of light-emitting component 2951, contact CT exerts an influence sometimes.Therefore, apply inhomogeneous easily at organic EL Material., in same variation, to each light-emitting component 2951, at a side one side configuration contact CT of width LTD.Therefore, than the coating condition that is easier to control organic EL Material.Its result, the coating that can suppress organic EL Material is inhomogeneous, forms good light-emitting component 2951.
, in described embodiment, light-emitting component 2951 be shaped as circle., the shape of light-emitting component 2951 is not limited thereto.Figure 23 is the vertical view of variation of the shape of expression light-emitting component.As shown in figure 23, in this variation, the shape of light-emitting component 2951 is rectangles.And, in will comparing with the light-emitting component 2951 of a plurality of rectangles of certain light-emitting component arranged spaced with in the mode of the light-emitting component 2951 of a plurality of circles of this light-emitting component arranged spaced, the light-emitting component 2951 of rectangle is compared with the light-emitting component 2951 of circle, can get bigger surface area, so help increasing light quantity.
In addition, in described embodiment, be connected the wiring WL on the light-emitting component 2951 that belongs to same light emitting device group 295, draw to a side one side of this light emitting device group at width LTD., the WL that also these can be connected up draws to the opposing party's one side of this light emitting device group at width LTD.Importantly, be connected the wiring WL on the light-emitting component 2951 that belongs to same light emitting device group 295, draw to the same side of this light emitting device group 295 at width LTD.
In addition, also can make the side difference of drawing of wiring WL in each light emitting device group 295.Promptly for example, the WL that respectively connects up that is connected on the light-emitting component 2951 that belongs to light emitting device group 295_1 (Fig. 9) draws to a side one side, and the WL that respectively connects up that is connected on the light-emitting component 2951 that belongs to light emitting device group 2952 draws to the opposing party's one side.Certainly, can make also that wiring WL's draw a side all consistent between the light emitting device group 295.
In addition, in described embodiment, constitute light emitting device group row 295C by 3 light emitting device group 295, but the number that constitutes the light emitting device group 295 of light emitting device group row 295C is not limited thereto.
In addition, in described embodiment,, use organic EL, but the luminescent material that can use as light-emitting component 2951 is not limited thereto, for example also LED (Light Emitting Diode) can be used as light-emitting component 2951 as light-emitting component 2951.
In addition, in Figure 20~Figure 23, each wiring WL is connected with drive circuit DC., also can connect the WL that respectively connects up, each light-emitting component 2951 input signal ground be constituted by FPC at FPC (Flexible Printed Circuits).
In addition, in described embodiment, main scanning exploring degree and subscan exploring degree all are 600dpi, but each exploring degree is not limited to 600dpi.Particularly,,, can realize exploring degree more than or equal to 600dpi with the fluorescent lifetime sectionalization of light-emitting component 2951 by being called the pulse width modulation control of so-called PWM (Pulse Width Modulation) control about subscan exploring degree fairly simplely.Therefore, for example can be that main scanning exploring degree is 600dpi, subscan exploring degree is 2400dpi on the other hand, improves subscan exploring degree.At this moment, subscan exploring degree is 4 times of main scanning exploring degree, so subscan pixel interval Rsd becomes 1/4 of main scanning pixel interval Rmd.
In addition, in described embodiment,, make image development, carry out the formation of image, still, also can pass through liquid developer, image development by so-called dry type ink powder.Figure 24 is the figure of the summary of the device that developed by liquid developer of expression.So the different structures that mainly are developer of the device of Figure 24 and the device of Fig. 3 in the following description, mainly illustrate developer, and other parts are paid corresponding symbol, omit explanation.
Along the throughput direction of intermediate duplication band 81,4 developer 90Y (being used for yellow), 90M (being used for carmetta), 90C (being used for cyan), 90K (being used for black) that alignment arrangements is with each ink powder look corresponding.The oil vessel 901 of collection base oil, toner container 902, the agitator 903 of collection high concentration ink powder are set in each developer 90K etc.At agitator 903, will stir from the base oil of oil vessel 901 supplies and the high concentration ink powder of supplying with from toner container 902, generate the liquid developer that concentration is adjusted.The liquid developer of Sheng Chenging is supplied with developer reservoir 904 like this.Donor rollers 905 and anilox roll 906 are set in the inside of developer reservoir 904.The liquid developer of developer reservoir 904 inside is immersed in the bottom of donor rollers 905.This donor rollers 905 is in the direction of arrow rotation of Figure 24, and the draw liquid developer is carried to anilox roll 906.Anilox roll 906 will apply at developer roll 907 from the liquid developer that donor rollers 905 transports in the direction of arrow rotation of Figure 24.
Developer roll 907 contacts with photosensitive drums 21 at developing location.This developer roll 907 can be held in the surface of developer roll 907 load from the liquid developer that anilox roll 906 is supplied with in the direction of arrow rotation of Figure 24, offers developing location.The ink powder that comprises in the liquid developer of Gong Geiing is attached on the sub-image of photosensitive drum surface like this, carries out and develops.
In the direction of rotation of developer roll 907, in the downstream of developing location one side, cleaning scraper plate 908 contacts with developer roll 907.Strip liquid developer by this cleaning scraper plate 908 from developer roll 907 surfaces, be recovered to returnable 909.In addition, the liquid developer that is recovered to returnable 909 is got back to agitator 903, utilizes again.
At the direction of rotation D21 of photosensitive drums, in the downstream of developing location one side, contact with the surface of photosensitive drums 21,2 compression rollers 910 are set.And this compression roller 910 strips base oil from the surface of photosensitive drums 21, thus the amount of the base oil that comprises in the liquid developer on the surface of adjustment photosensitive drums 21.In addition, the base oil that strips is in case by after returnable 911 recovery, get back to agitator 903, again utilization.
At developing location, with image development, the image of obtaining copies to intermediate duplication band 81 at 1 duplicating position TR1.At the throughput direction D81 of intermediate duplication band 81, in the downstream of 1 duplicating position TR1, one side, contact has band compression roller 912.And this band compression roller 912 strips base oil from middle dubs 81, thereby adjusts the amount of the base oil that comprises in the liquid developer on intermediate duplication band 81 surfaces.In addition, the base oil that strips is reclaimed by returnable 913.
Such image that duplicates for 1 time copies to on the paper for 2 times.These 2 replication actions are duplicated roller 82 for 2 times by 2 and are carried out with each reserve roller 121 that duplicates roller 82 relative configurations for 2 times.In addition, thereby cleaning scraper plate 1211 contacts setting with each reserve roller 121, is stripped by cleaning scraper plate 1211 at reserve roller 121 residual liquid developers, is reclaimed by returnable 1212.
In the device of Figure 24, by liquid developer with image development (liquid development)., general, such liquid development can be to carry out the development of sub-image than degree of precision.Therefore, the development of the some sub-image that is well formed by described invention is fit to be carried out by liquid development.

Claims (16)

1. photohead has:
Imaging optical system disposes at first direction;
First light-emitting component and second light-emitting component send the light by described imaging optical system imaging, are formed on the adjacent light collecting part of described first direction, and with described first direction quadrature or the roughly second direction configuration of quadrature;
First wiring is electrically connected with described first light-emitting component, and draws to a side one side of described second direction from described first light-emitting component; With
Second wiring is electrically connected with described second light-emitting component, and draws to a side one side of described second direction from described second light-emitting component.
2. photohead according to claim 1 is characterized in that:
Have circuit, be configured in a side one side of described second direction, and be electrically connected with described first wiring and described second wiring.
3. photohead according to claim 2 is characterized in that:
Described circuit is the drive circuit that drives described first light-emitting component and second light-emitting component.
4. photohead according to claim 3 is characterized in that:
Described drive circuit is TFT.
5. photohead according to claim 2 is characterized in that:
Described circuit is FPC.
6. image processing system has:
The sub-image load is held body;
Photohead, this photohead has: at the imaging optical system of first direction configuration; First light-emitting component and second light-emitting component, send the light of holding volume imaging by described imaging optical system in described sub-image load, hold body in described sub-image load and be formed on the adjacent sub-image of described first direction, and with described first direction quadrature or the roughly second direction configuration of quadrature; First wiring is electrically connected with described first light-emitting component, and draws to a side one side of described second direction from described first light-emitting component; With second wiring, be electrically connected with described second light-emitting component, and draw to a side one side of described second direction from described second light-emitting component; With
Development section will be held the described image development that forms on the body in described sub-image load by described photohead.
7. image processing system according to claim 6 is characterized in that:
Have circuit, be configured in a side one side of described second direction, and be electrically connected with described first wiring and described second wiring.
8. image processing system according to claim 6 is characterized in that:
Described first light-emitting component and described second light-emitting component are held the mobile next luminous of body according to described sub-image load, are formed on the adjacent described sub-image of described first direction.
9. image processing system according to claim 7 is characterized in that:
Described first light-emitting component and described second light-emitting component are held the mobile next luminous of body according to described sub-image load, are formed on the adjacent described sub-image of described first direction.
10. image processing system according to claim 8 is characterized in that:
It is capable and second light-emitting component is capable to dispose first light-emitting component, the capable first direction configuration light-emitting component at described first light-emitting component of described first light-emitting component, the capable first direction configuration light-emitting component at described second light-emitting component of described second light-emitting component.
11. image processing system according to claim 10 is characterized in that:
The width of the described first direction of described first light-emitting component, longer than the interval at described first direction of described first light-emitting component and described second light-emitting component.
12. image processing system according to claim 10 is characterized in that:
When making described first light-emitting component and described second light-emitting component simultaneously luminous, first sub-image that is formed by described first light-emitting component and second sub-image that formed by described second light-emitting component are the integral multiples at interval of the described second direction of pixel described second direction at interval.
13. image processing system according to claim 11 is characterized in that:
When making described first light-emitting component and described second light-emitting component simultaneously luminous, first sub-image that is formed by described first light-emitting component and second sub-image that formed by described second light-emitting component are the integral multiples at interval of the described second direction of pixel described second direction at interval.
14. any described image processing system according in the claim 6~13 is characterized in that:
Described first light-emitting component and described second light-emitting component are organic ELs.
15. image processing system according to claim 14 is characterized in that:
Described organic EL is an end light emitting-type.
16. any described image processing system according in the claim 6~13 is characterized in that:
By liquid developer with described image development.
CN2008101812472A 2007-11-19 2008-11-18 Exposure head and image forming device Expired - Fee Related CN101439616B (en)

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JP2007299187 2007-11-19
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