CN105128343A - Preparing method and device for multicolor three-dimensional object - Google Patents
Preparing method and device for multicolor three-dimensional object Download PDFInfo
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- CN105128343A CN105128343A CN201510662659.8A CN201510662659A CN105128343A CN 105128343 A CN105128343 A CN 105128343A CN 201510662659 A CN201510662659 A CN 201510662659A CN 105128343 A CN105128343 A CN 105128343A
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Abstract
The invention relates to a preparing method and device for a multicolor three-dimensional object. The method includes the following steps that firstly, a spreader is used for coating a construct platform or a construct material layer which is cured previously with a layer of construct material; secondly, rays are transmitted out by a curing mechanism according to data of the preset three-dimensional object, and the construct material in the current corresponding position on the construct platform is cured; thirdly, if the current layer of the cured construct material needs to be colored, a coloring mechanism is used for coloring the area, needing to be colored, of the current layer; fourthly, the first step, the second step and the third step are repeated until all the layers of the three-dimensional object are cured. According to the preparing method and device for the multicolor three-dimensional object, the curing mechanism conducts sintering layer by layer, the coloring mechanism conducts coloring layer by layer, the three-dimensional object different in color is prepared, and the mechanical performance of the three-dimensional object cannot be reduced.
Description
Technical field
The present invention relates to three-dimensional printing technology, particularly a kind of manufacture method of polychrome three-dimensional body and device.
Background technology
Three-dimensional printing technology is as Selective Laser Sintering or photocuring technology, successively solidify to form by material that is Powdered or liquid state, material for solidifying is single often, the unicity of material makes the three-dimensional body appearance color of manufacture single, raw-material color can only be embodied, the white of the polyamide polymer such as usually adopted.Change the appearance color of three-dimensional body, normally by painted for the three-dimensional object surface later stage manufactured, thus obtain the outward appearance being different from material true qualities, but the operation so obtaining polychrome three-dimensional body is just comparatively complicated, and surface colour is not dark, easily fades.If use multiple material successively to solidify, dusty material between different layers can mix and not easily reclaim differentiation, raw-material utilization rate is extremely low, and between different layers, the solidification of different materials connects the connection comparing homogenous material, and its mechanical property declines to some extent.
Summary of the invention
Based on this, be necessary the defect for prior art, a kind of manufacture method and device of polychrome three-dimensional body be provided, the problem that three-dimensional object surface color is single can not only be solved, and do not affect its inherent strength.
Its technical scheme is as follows:
A manufacture method for polychrome three-dimensional body, comprises the steps:
A, spreader on construct platform or before the construction material layer that solidified applies one deck construction material;
B, curing mechanism send ray according to the data of the three-dimensional body preset, and are solidified by the construction material of current layer correspondence position on construct platform;
If construction material current layer that c has solidified needs painted, then painted mechanism to need painted areas to carry out to current layer painted;
D, repetition step a, b, c, until all layers of three-dimensional body complete solidification.
Wherein in an embodiment, in step c, the concrete steps of coloring process are as follows:
C1, photosensitive rotating cylinder static electrification, laser instrument needs the information of painted areas according to current layer, send light beam and eliminate electrostatic by the photosensitive rotating cylinder region of prism elective irradiation, form electrostatic to dive phase, not irradiated photosensitive rotating cylinder region is still with electrostatic, and electrically identical with the colouring agent in coloring units;
C2, photosensitive rotating cylinder rotate, electrostatic alpha region of diving absorbs the colouring agent of coloring units, bisque discharger needs painted discharging regions to the construction material current layer solidified, make it with the electric charge contrary with colouring agent, the colouring agent on photosensitive rotating cylinder is attracted to current layer to be needed on painted region.
Further, in step c, coloring process also comprises the steps:
After c3, completing steps c2, photosensitive rotating cylinder rotates to cleaning mechanism, and the colouring agent of photosensitive rotating cylinder surface residual is scraped recovery by cleaning mechanism, carries out discharge process to photosensitive rotating cylinder, completes the painted of a rotary course;
If the construction material current layer that c4 has solidified also needs painted, repeat step c1, c2 and c3 and carry out the painted of next rotary course.
Wherein in an embodiment, in step c, the concrete steps of coloring process are as follows:
The nozzle be communicated with print cartridge is moved to the top of the construction material current layer solidified;
Drive nozzle to move on the first guide rail and/or the second guide rail, in moving process, nozzle needs painted area spray colouring agent to current layer.
Further, in moving process, nozzle needs painted area spray colouring agent to current layer, specific as follows:
Print cartridge and nozzle first move painted to wire of X on the first guide rail, while print cartridge, nozzle and the first guide rail at the second moving on rails, by the painted accumulation in Y-direction, complete the painted of current layer.
Wherein in an embodiment, spreader coating construction material specifically comprises the steps: that the first bearing support construction material rising certain altitude provides the construction material of new one deck, second bearing declines the construction material layer decline certain altitude making construct platform or solidified, and the construction material of new one deck is coated on construct platform or on the construction material layer that solidified by spreader.
A manufacturing installation for polychrome three-dimensional body, comprising:
Construct platform, construct platform can be elevated the current layer making it has applied construction material and be in working face;
Spreader, spreader moves coating construction material at working face;
Curing mechanism, curing mechanism sends ray to working face according to the data of the three-dimensional body preset, and is solidified by the construction material of correspondence position on working face;
Painted mechanism, painted mechanism according to instruction at the construction material current layer solidified to carrying out painted in requisition for painted region.
Wherein in an embodiment, described painted mechanism comprises laser instrument, prism, photosensitive rotating cylinder, charger, coloring units, bisque discharger and cleaning mechanism, described charger is used for making photosensitive rotating cylinder static electrification, laser instrument is used for needing the delivering light beam of painted areas to prism according to current layer, electrostatic is eliminated in the photosensitive rotating cylinder region of elective irradiation, the region of coloring units for providing colouring agent to be adsorbed on photosensitive rotating cylinder not static electrification, bisque discharger is used for needing painted discharging regions to the construction material current layer solidified, make it with the electric charge contrary with colouring agent, the colouring agent that cleaning mechanism is used for completing the painted photosensitive rotating cylinder surface residual of rotary course scrapes recovery, and discharge process is carried out to photosensitive rotating cylinder.
Wherein in an embodiment, the manufacturing installation of described polychrome three-dimensional body also comprises airtight framework, described framework offers window, and described construct platform, spreader and painted mechanism are all located in described framework, and the ray that described curing mechanism is launched injects working face by described window.
Wherein in an embodiment, the manufacturing installation of described polychrome three-dimensional body comprises print cartridge and is arranged at least one nozzle on print cartridge, and described print cartridge is slidably mounted on the first guide rail, is arranged on the second guide rail described first slide.
Below the advantage of preceding solution or principle are described:
The manufacture method of above-mentioned polychrome three-dimensional body and device, successively the construction material on working face is optionally solidified by curing mechanism, painted mechanism carries out successively painted according to instruction to the painted cured layer of needs, thus produce the three-dimensional body with different colours, solve the problem that three-dimensional object surface color is single, owing to being painted in three-dimensional body inside, not easily fade, color tinted clear is effective, and the construction material of three-dimensional body only can select one, between different layers, unsintered construction material still can reclaim after mixing, raw-material utilization rate is high, because the solidification of not depositing different materials between the different layers connects, thus the three-dimensional body mechanical property produced can not decline.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the manufacturing installation of the polychrome three-dimensional body described in the embodiment of the present invention;
Fig. 2 is the schematic diagram of the painted mechanism described in the embodiment of the present invention;
Fig. 3 is for mechanism painted described in the embodiment of the present invention is to the painted schematic diagram of cured layer;
Fig. 4 is the schematic diagram of the painted mechanism of another described in the embodiment of the present invention;
Fig. 5 is the flow chart of the manufacture method of polychrome three-dimensional body described in the embodiment of the present invention;
Fig. 6 is the flow chart of the coloring process of mechanism painted shown in Fig. 2;
Fig. 7 is the flow chart of the coloring process of mechanism painted shown in Fig. 4.
Description of reference numerals:
1, three-dimensional body, the 10, second bearing, 110, construct platform, 120, moulding cylinder, 20, spreader, 30, painted mechanism, 310, laser instrument, 320, prism, 330, photosensitive rotating cylinder, 340, charger, 350, coloring units, 360, bisque discharger, 370, cleaning mechanism, 380, print cartridge, 382, nozzle, 390, the first guide rail, 392, the second guide rail, the 40, first bearing, 410, powder cylinder, 50, drive unit, 60, framework, 610, window, 70, lens, 810, radiator, 820, deflector.
Detailed description of the invention
As shown in Figure 1, a kind of manufacturing installation of polychrome three-dimensional body, comprise the second bearing 10, described second bearing 10 is driven by the first driving mechanism, and the second bearing 10 lifting makes the construct platform 110 on it or the current layer having applied construction material on construct platform 110 be in working face M; Spreader 20, described spreader 20 is driven by the second driving mechanism, and spreader 20 moves at working face, and is coated on working face by the construction material of new one deck; Curing mechanism, the data according to the three-dimensional body 1 preset send ray to working face, are sintered by the construction material of correspondence position on working face; Painted mechanism 30, described painted mechanism 30 is driven by the 3rd driving mechanism, painted mechanism 30 according to instruction at the construction material current layer solidified to carrying out painted in requisition for painted region.Wherein, under current layer refers to current state, up-to-date one deck that three-dimensional body 1 is processed, working face M is default for applying construction material, solidification or painted plane.In Fig. 1, the manufacturing installation of polychrome three-dimensional body also comprises the first bearing 40, second bearing 10 is positioned at moulding cylinder 120, second bearing 10 is along moulding cylinder 120 oscilaltion, the position of adjustment three-dimensional body 1, first bearing 40 is positioned at powder cylinder 410, Powdered construction material in first bearing 40 support powder cylinder 410, the first bearing 40 is driven along powder cylinder 410 oscilaltion, for spreader 20 provides construction material by four-wheel drive mechanism.Curing mechanism is arranged on above working face, comprise radiator 810 and deflector 820, this radiator 810 drives the electromagnetic beam sending the laser beam of an orientation, ultraviolet light or LED light or other light by the 5th driving mechanism, deflector 820 drives deflection by this electromagnetic beam or deflection of a beam of electrons on working face by the 6th driving mechanism.The first driving mechanism is not shown respectively in Fig. 1, second driving mechanism, 3rd driving mechanism, four-wheel drive mechanism, 5th driving mechanism and the 6th driving mechanism, connect by means of only dotted line and show the second bearing 10, spreader 20, painted mechanism 30, first bearing 40, radiator 810 and deflector 820 distribution are connected with drive unit 50, be understandable that described drive unit 50 comprises the first driving mechanism, second driving mechanism, 3rd driving mechanism, four-wheel drive mechanism, 5th driving mechanism, 6th driving mechanism and to the first driving mechanism, second driving mechanism, 3rd driving mechanism, four-wheel drive mechanism, 5th driving mechanism, 6th driving mechanism carries out the controller controlled.
Successively selective sintering is carried out to the construction material on working face by curing mechanism, painted mechanism 30 carries out successively painted according to instruction to the painted cured layer of needs, thus produce the three-dimensional body 1 with different colours, solve the problem that three-dimensional object surface color is single, owing to being inner painted at three-dimensional body 1, not easily fade, color tinted clear is effective, and the construction material of three-dimensional body only can select one, between different layers, unsintered construction material still can reclaim after mixing, raw-material utilization rate is high, because the solidification of not depositing different materials between the different layers connects, thus three-dimensional body 1 mechanical property produced can not decline.
Further, the manufacturing installation of described polychrome three-dimensional body also comprises airtight framework 60, described framework 60 offers window 610, described window 610 place is located at lens 70, described second bearing 10, spreader 20 and painted mechanism 30 are all located in described framework 60, and the ray that described curing mechanism is launched injects working face by the lens 70 of described window 610.Whole working space is cut off by framework 60 and surrounding environment, can stop the oxidation of construction material.
As shown in Figure 2, described in the present embodiment, painted mechanism 30 comprises laser instrument 310, prism 320, photosensitive rotating cylinder 330, charger 340, coloring units 350, bisque discharger 360 and cleaning mechanism 370, described charger 340 is for making photosensitive rotating cylinder 330 static electrification, laser instrument 310 is for needing the delivering light beam of painted areas to prism 320 according to current layer, electrostatic is eliminated in elective irradiation photosensitive rotating cylinder 330 region, the region of coloring units 350 for providing colouring agent to be adsorbed on photosensitive rotating cylinder 330 not static electrification, bisque discharger 360 is for needing painted discharging regions to the construction material current layer solidified, make it with the electric charge contrary with colouring agent, cleaning mechanism 370 is for scraping recovery to the colouring agent completing painted photosensitive rotating cylinder 330 surface residual of rotary course, and discharge process is carried out to photosensitive rotating cylinder 330.This painted mechanism 30 can carry out accurately painted to the corresponding cured layer of three-dimensional body 1, coloring effect is good.In the present embodiment, photosensitive rotating cylinder 330 is driven by the 7th driving mechanism and rotates, charger 340, coloring units 350 and cleaning mechanism 370 are successively set on the periphery of photosensitive rotating cylinder 330 around the direction of rotation of photosensitive rotating cylinder 330, and described laser instrument 310 and prism 320 are arranged on the top of photosensitive rotating cylinder 330, the light beam that laser instrument 310 sends is radiated at photosensitive rotating cylinder 330 between charger 340 and coloring units 350 on the surface through prism 320 deflection, described coloring units 350 and cleaning mechanism 370 lay respectively at the left and right sides of photosensitive rotating cylinder 330, charger 340 is positioned at the upside of photosensitive rotating cylinder 330, the downside of photosensitive rotating cylinder 330 is color bits, be convenient to carry out painted to cured layer, bisque discharger 360 is arranged near the position of color bits, be convenient to discharge to cured layer, photosensitive rotating cylinder 330 rotates a circle and can complete the painted of a rotary course.
Shown in Fig. 3 is a cross section profile of three-dimensional body 1, it is a notched circle, need to comprise breach face S1, S2 to its surface and arc surface S3 is painted, be understandable that, here face refers to the painted areas with certain thickness, its painted areas can the size along its outer surface profile toward interior extension certain distance d, distance d can regulate according to painted demand.Identical color can according to object actual demand to S1, S2, S3 face, also can different colours, in the present embodiment, coloring units 350 has black, yellow, red, Lan Si kind colouring agent, and required color can adopt different ratio to form according to four kinds of colors, also can select solid color or be replaced with other different colours, if current layer needs painted, then painted operation is implemented to this layer, if current layer does not need painted, then can skip the painted operation of this layer.
Fig. 4 is the painted mechanism 30 of another kind of structure, it comprises print cartridge 380 and is arranged on the multiple nozzles 382 on print cartridge 380, described print cartridge 380 is slidably mounted on the first guide rail 390, described first guide rail 390 is slidably mounted on the second guide rail 392, print cartridge 380 moves along the first guide rail 390 and/or the second guide rail 392 under the driving of the 8th driving mechanism, in moving process, the cured layer of nozzle 382 pairs of three-dimensional bodies 1 carries out painted, and this structure is simple to operation.
As shown in Figure 5, a kind of manufacture method of polychrome three-dimensional body, comprises the steps:
A, spreader on construct platform or before the construction material layer that solidified applies one deck construction material;
B, curing mechanism send ray according to the data of the three-dimensional body preset, and are solidified by the construction material of current layer correspondence position on construct platform;
If construction material current layer that c has solidified needs painted, then painted mechanism to need painted areas to carry out to current layer painted;
D, repetition step a, b, c, until all layers of three-dimensional body complete solidification.
The manufacture method of this polychrome three-dimensional body, spreader applies one deck construction material, curing mechanism is according to the instruction selective laser ray of controller, the electromagnetic beam of ultraviolet light or LED light or other light, the construction material of this layer with electromagnetic beam correspondence position is cured, painted mechanism is according to the instruction of controller, the current layer solidified is carried out painted or not painted, complete this layer painted after carry out the coating of lower one deck again, solidification and painted, be layering, easy realization simple to operate, the three-dimensional body mechanical property manufactured does not affect by painted operation, and coloring effect is good, not easily decolour.Wherein, the data of three-dimensional body preset refer to that three-dimensional body is cut into multilayer by controller in advance, the data command that every layer of correspondence is different, and the sintering curing of every one deck performs according to this layer of corresponding data command with painted.
Further, spreader coating construction material specifically comprises the steps: that the first bearing support construction material rising certain altitude provides the construction material of new one deck, second bearing declines the construction material layer decline certain altitude making construct platform or solidified, and the construction material of new one deck is coated on construct platform or on the construction material layer that solidified by spreader.By adopting said method, scraper (applicator) flushes with working face and holding position is motionless, powder cylinder is risen by the first bearing the height of a thickness, thus the construction material of a thickness is provided, now, the moulding cylinder had cured is declined by the second bearing the height of a thickness, the construction material that scraper provides because rising a thickness is scraped over from left to right, the construction material of new one deck cover have dropped a thickness height solidification face on, current layer so just can be made to be in working face, no matter spreader is adhere to construction material, or at construct platform or cured layer coating construction material, it moves all the time on working face, convenient operation and control.
As shown in Figure 6, preferably, in step c, the concrete steps of coloring process are as follows:
C1, photosensitive rotating cylinder static electrification, laser instrument needs the information of painted areas according to current layer, send light beam and eliminate electrostatic by the photosensitive rotating cylinder region of prism elective irradiation, form electrostatic to dive phase, not irradiated photosensitive rotating cylinder region is still with electrostatic, and electrically identical with the colouring agent in coloring units;
C2, photosensitive rotating cylinder rotate, electrostatic alpha region of diving absorbs the colouring agent of coloring units, bisque discharger needs painted discharging regions to the construction material current layer solidified, make it with the electric charge contrary with colouring agent, the colouring agent on photosensitive rotating cylinder is attracted to current layer to be needed on painted region.
Further, in step c, coloring process also comprises the steps:
After c3, completing steps c2, photosensitive rotating cylinder rotates to cleaning mechanism, and the colouring agent of photosensitive rotating cylinder surface residual is scraped recovery by cleaning mechanism, carries out discharge process to photosensitive rotating cylinder, completes the painted of a rotary course;
If the construction material current layer that c4 has solidified also needs painted, repeat step c1, c2 and c3 and carry out the painted of next rotary course.
Photosensitive rotating cylinder rotates a circle and namely completes the painted of a rotary course, a rotary course painted can be only complete a kind of colouring agent painted, also can be the painted of the colouring agent simultaneously completing different colours, if the painted of a current layer rotary course can not complete all coloring requirement, can be repeatedly, this coloring mode is accurately painted, and coloring effect is good.
As shown in Figure 7, the mode that ink-jet also can be adopted painted of coloring process in step c, concrete steps are as follows:
The nozzle be communicated with print cartridge is moved to the top of the construction material current layer solidified;
Drive nozzle to move on the first guide rail and/or the second guide rail, in moving process, nozzle needs painted area spray colouring agent to current layer.
Further, in moving process, nozzle needs painted area spray colouring agent to current layer, specific as follows:
Print cartridge and nozzle first move the painted of X or Y-direction wire on the first guide rail, while print cartridge, nozzle and the first guide rail at the second moving on rails, by Y or X to painted accumulation, complete the painted of current layer.
This coloring mode is simple to operation, and the three-dimensional body be suitable for painted requirement is lower is painted.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a manufacture method for polychrome three-dimensional body, is characterized in that, comprises the steps:
A, spreader on construct platform or before the construction material layer that solidified applies one deck construction material;
B, curing mechanism send ray according to the data of the three-dimensional body preset, and are solidified by the construction material of current layer correspondence position on construct platform;
If construction material current layer that c has solidified needs painted, then painted mechanism to need painted areas to carry out to current layer painted;
D, repetition step a, b, c, until all layers of three-dimensional body complete solidification.
2. the manufacture method of polychrome three-dimensional body as claimed in claim 1, it is characterized in that, in step c, the concrete steps of coloring process are as follows:
C1, photosensitive rotating cylinder static electrification, laser instrument needs the information of painted areas according to current layer, send light beam and eliminate electrostatic by the photosensitive rotating cylinder region of prism elective irradiation, form electrostatic to dive phase, not irradiated photosensitive rotating cylinder region is still with electrostatic, and electrically identical with the colouring agent in coloring units;
C2, photosensitive rotating cylinder rotate, electrostatic alpha region of diving absorbs the colouring agent of coloring units, bisque discharger needs painted discharging regions to the construction material current layer solidified, make it with the electric charge contrary with colouring agent, the colouring agent on photosensitive rotating cylinder is attracted to current layer to be needed on painted region.
3. the manufacture method of polychrome three-dimensional body as claimed in claim 2, it is characterized in that, in step c, coloring process also comprises the steps:
After c3, completing steps c2, photosensitive rotating cylinder rotates to cleaning mechanism, and the colouring agent of photosensitive rotating cylinder surface residual is scraped recovery by cleaning mechanism, carries out discharge process to photosensitive rotating cylinder, completes the painted of a rotary course;
If the construction material current layer that c4 has solidified also needs painted, repeat step c1, c2 and c3 and carry out the painted of next rotary course.
4. the manufacture method of polychrome three-dimensional body as claimed in claim 1, it is characterized in that, in step c, the concrete steps of coloring process are as follows:
The nozzle be communicated with print cartridge is moved to the top of the construction material current layer solidified;
Drive nozzle to move on the first guide rail and/or the second guide rail, in moving process, nozzle needs painted area spray colouring agent to current layer.
5. the manufacture method of polychrome three-dimensional body as claimed in claim 4, it is characterized in that, in moving process, nozzle needs painted area spray colouring agent to current layer, specific as follows:
Print cartridge and nozzle first move painted to wire of X on the first guide rail, while print cartridge, nozzle and the first guide rail at the second moving on rails, by the painted accumulation in Y-direction, complete the painted of current layer.
6. the manufacture method of the polychrome three-dimensional body as described in any one of claim 1 to 5, it is characterized in that, spreader coating construction material specifically comprises the steps: that the first bearing support construction material rising certain altitude provides the construction material of new one deck, second bearing declines the construction material layer decline certain altitude making construct platform or solidified, and the construction material of new one deck is coated on construct platform or on the construction material layer that solidified by spreader.
7. a manufacturing installation for polychrome three-dimensional body, is characterized in that, comprising:
Construct platform, construct platform can be elevated the current layer making it has applied construction material and be in working face;
Spreader, spreader moves coating construction material at working face;
Curing mechanism, curing mechanism sends ray to working face according to the data of the three-dimensional body preset, and is solidified by the construction material of correspondence position on working face;
Painted mechanism, painted mechanism according to instruction at the construction material current layer solidified to carrying out painted in requisition for painted region.
8. the manufacturing installation of polychrome three-dimensional body as claimed in claim 7, it is characterized in that, described painted mechanism comprises laser instrument, prism, photosensitive rotating cylinder, charger, coloring units, bisque discharger and cleaning mechanism, described charger is used for making photosensitive rotating cylinder static electrification, laser instrument is used for needing the delivering light beam of painted areas to prism according to current layer, electrostatic is eliminated in the photosensitive rotating cylinder region of elective irradiation, the region of coloring units for providing colouring agent to be adsorbed on photosensitive rotating cylinder not static electrification, bisque discharger is used for needing painted discharging regions to the construction material current layer solidified, make it with the electric charge contrary with colouring agent, the colouring agent that cleaning mechanism is used for completing the painted photosensitive rotating cylinder surface residual of rotary course scrapes recovery, and discharge process is carried out to photosensitive rotating cylinder.
9. the manufacturing installation of polychrome three-dimensional body as claimed in claim 8, it is characterized in that, it also comprises airtight framework, described framework offers window, described construct platform, spreader and painted mechanism are all located in described framework, and the ray that described curing mechanism is launched injects working face by described window.
10. the manufacturing installation of polychrome three-dimensional body as claimed in claim 7, it is characterized in that, it comprises print cartridge and is arranged at least one nozzle on print cartridge, and described print cartridge is slidably mounted on the first guide rail, is arranged on the second guide rail described first slide.
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