WO2017204056A1 - 液体吐出装置及び吐出部の交換方法 - Google Patents
液体吐出装置及び吐出部の交換方法 Download PDFInfo
- Publication number
- WO2017204056A1 WO2017204056A1 PCT/JP2017/018547 JP2017018547W WO2017204056A1 WO 2017204056 A1 WO2017204056 A1 WO 2017204056A1 JP 2017018547 W JP2017018547 W JP 2017018547W WO 2017204056 A1 WO2017204056 A1 WO 2017204056A1
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- Prior art keywords
- carriage
- discharge
- liquid
- exchange
- ejection
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/34—Bodily-changeable print heads or carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/1752—Mounting within the printer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/54—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
- B41J3/543—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements with multiple inkjet print heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/20—Modules
Definitions
- the present invention relates to a liquid discharge apparatus and a method for replacing a discharge unit.
- Patent Documents 1 to 3 conventionally, various liquid ejection devices including a ejection unit capable of ejecting a liquid have been used.
- a liquid ejection apparatus including a carriage that can reciprocate with respect to a medium and an ejection unit that is attached to the carriage and ejects liquid onto the medium is often used.
- patent document 3 in a large sized liquid discharge apparatus etc., in many cases, a several discharge part is provided in the carriage.
- JP 2013-75361 A Japanese Patent Laying-Open No. 2015-166153 JP 2007-237446 A
- an object of the present invention is to reduce a load when the ejection unit is replaced in a carriage to which a plurality of ejection units can be attached.
- the carriage is capable of exchanging the ejection part at a plurality of exchange positions in the reciprocating direction of the carriage, and when the carriage is at the exchange position, from the downstream side in the liquid ejection direction,
- the discharge unit to be replaced is configured to be accessible.
- the carriage can exchange the ejection unit at a plurality of exchange positions in the reciprocating direction, and can access the ejection unit to be exchanged from the downstream side in the liquid ejection direction when the carriage is at the exchange position. .
- the discharge unit it is possible to replace the discharge unit at a position that is easy to replace at each replacement position, and it is possible to access the discharge unit from a position with few obstructive parts by accessing the discharge unit from the downstream side in the liquid discharge direction. it can. Therefore, it is possible to reduce a load when the ejection unit is replaced in a carriage to which a plurality of ejection units can be attached.
- “accessible from the downstream side in the liquid ejection direction is accessible to the replacement part” means that the replacement part can be accessed only from the downstream side in the liquid ejection direction, as well as the downstream side in the liquid ejection direction. This also includes the case where the discharge unit to be replaced is accessible from other directions.
- the replacement position is provided on both sides in the reciprocating direction with respect to a central portion in a reciprocating range of the carriage. It is characterized by that.
- the exchange positions are provided on both sides in the reciprocating movement direction with reference to the central portion in the reciprocating movement range of the carriage. That is, the exchange position is provided near both ends in the reciprocating direction. For this reason, it is possible to access the discharge unit at a position where there are few obstructing parts, and it is possible to reduce the load when replacing the discharge unit particularly effectively.
- the liquid ejection device is the liquid ejection device according to the first or second aspect, wherein at least one of the components located at a position facing the ejection portion when the carriage is at the replacement position is moved. It is possible.
- the carriage when the carriage is at the replacement position, at least one of the parts located at the position facing the ejection unit is movable. For this reason, when replacing the discharge unit, it is possible to reduce the load when the component is moved to replace the discharge unit, and when the discharge unit is not replaced, the component is disposed at a position facing the discharge unit. By doing so, the device can be saved in space.
- the replacement position in the liquid ejection device according to the third aspect, the replacement position where the movable part is present is replaced more than the replacement position where the movable part is not present.
- the number of possible discharge units is large.
- the number of replaceable discharge sections is larger than in the replacement position where there are no movable parts.
- the reciprocating range of the carriage can be shortened by increasing the number of discharge units that can be exchanged at an exchange position where there are movable parts compared to an exchange position where there are no movable parts. For this reason, the apparatus can be effectively saved in space.
- the liquid ejection device is the liquid ejection device according to any one of the first to fourth aspects, wherein the carriage is detachable from the upstream side in the liquid ejection direction,
- the discharge unit can be fixed from the downstream side in the liquid discharge direction.
- the carriage can fix the discharge portion from the downstream side in the liquid discharge direction. Since a member such as a liquid flow path is formed on the upstream side in the discharge direction of the liquid in the discharge portion, the discharge portion can be fixed without the member becoming an obstacle. Moreover, according to this aspect, the discharge part can be detached from the upstream side in the liquid discharge direction. By adopting such a configuration, it becomes easy to arrange the discharge portions at high density, and the apparatus can be effectively saved in space.
- a liquid ejecting apparatus comprising: a carriage that can reciprocate with respect to a medium; and a plurality of ejection sections that are attached to the carriage and eject liquid onto the medium.
- the method for replacing the ejection unit includes: locating the carriage at a first exchange position, accessing from a downstream side in the liquid ejection direction, exchanging a part of the ejection unit, and replacing the carriage with the first It is located at a second exchange position different from the one exchange position, and is accessed from the downstream side in the liquid ejection direction to exchange a part of the ejection units.
- the carriage is located at the first exchange position, accessed from the downstream side in the liquid ejection direction, and a part of the ejection parts is exchanged, and the carriage is located at the second exchange position different from the first exchange position. And accessing from the downstream side in the liquid discharge direction to replace a part of the discharge portions. For this reason, it is possible to replace the discharge unit at a position that is easy to replace at each of the first replacement position and the second replacement position, and to access the discharge unit from the downstream side in the liquid discharge direction.
- the discharge unit can be accessed from a small number of positions. Therefore, it is possible to reduce a load when the ejection unit is replaced in a carriage to which a plurality of ejection units can be attached.
- the sixth aspect when the carriage is in the first replacement position, at least one of the parts located at a position facing the discharge section is The number of the discharge units that are movable and exchanged at the first exchange position is larger than the number of the discharge units exchanged at the second exchange position.
- the carriage when the carriage is at the first replacement position, at least one of the parts located at the position facing the discharge unit is movable, and the number of discharge units to be replaced at the first replacement position is the second replacement. More than the number of discharge parts to be replaced at the position. That is, it is possible to shorten the reciprocating range of the carriage by increasing the number of discharge sections that can be replaced at a replacement position where there is a movable part than at a replacement position where there is no movable part. For this reason, the apparatus can be effectively saved in space.
- the discharge unit replacement method includes the discharge unit from the upstream side in the liquid discharge direction at the first replacement position and the second replacement position. And the discharge part is fixed from the downstream side in the liquid discharge direction.
- the discharge portion by fixing the discharge portion from the downstream side in the liquid discharge direction, the discharge portion can be fixed without obstructing the upstream member in the liquid discharge direction in the discharge portion.
- an apparatus that can detach the discharge part from the upstream side in the liquid discharge direction can easily arrange the discharge parts with high density, and can effectively save the space.
- FIG. 1 is a schematic front view illustrating a recording apparatus according to an embodiment of the invention.
- 1 is a schematic perspective view illustrating a recording apparatus according to an embodiment of the invention.
- FIG. 3 is a schematic side view illustrating a main part of the recording apparatus according to the embodiment of the invention.
- FIG. 2 is a schematic plan view illustrating a main part of a recording apparatus according to an embodiment of the invention.
- 1 is a schematic perspective view illustrating a main part of a recording apparatus according to an embodiment of the present invention.
- FIG. 2 is a schematic plan view illustrating a main part of a recording apparatus according to an embodiment of the invention.
- FIG. 1 is a schematic front view of a recording apparatus 1 of the present embodiment.
- FIG. 2 is a schematic perspective view of the recording apparatus 1 of the present embodiment.
- FIG. 3 is a schematic side view of the carriage 2 that is a main part of the recording apparatus 1 of the present embodiment.
- FIG. 4 is a schematic plan view of a carriage 2 that is a main part of the recording apparatus 1 of the present embodiment.
- FIG. 5 is a schematic perspective view of the head installation unit 10 constituting the carriage 2 which is a main part of the recording apparatus 1 of the present embodiment.
- FIGS. 1 to 6 are schematic plan views showing a state in which the recording head 4 is installed in the head installation unit 10 represented by the area X in FIG.
- FIGS. 1 to 6 some constituent members are omitted for easy understanding of the outline of the recording apparatus 1 of the present embodiment.
- the recording apparatus 1 is configured to be capable of transporting a recording medium in the transport direction A by a transport mechanism (not shown) while being supported by a support unit 12 (see FIGS. 1 and 2). Yes. Then, ink that is an example of liquid is ejected from a recording head 4 as a plurality of ejection units attached to the carriage 2 to a medium that is supported in the conveyance unit A while being supported by the support unit 12. In this configuration, an image can be formed.
- the ink ejection direction C in the recording apparatus 1 of the present embodiment is a vertically downward direction when the recording apparatus 1 is installed on a horizontal plane.
- the carriage 2 can reciprocate in a reciprocating movement direction B that intersects the conveying direction A along the guide rails 6 and 7.
- the recording apparatus 1 When an image is formed (recorded) on the medium, the recording apparatus 1 according to the present embodiment moves the carriage 2 in the reciprocating movement direction B accompanied by the ejection of ink from the recording head 4 and the conveyance direction A of the medium. Alternately, the transfer to and from is performed. In other words, when forming an image on the medium, the medium is intermittently conveyed corresponding to the reciprocating movement of the carriage 2.
- a printing material can be used as the medium.
- the material to be printed refers to fabrics, clothes, and other clothing products to be printed.
- the fabric include natural fibers such as cotton, hemp, silk, and wool, chemical fibers such as nylon, and woven fabrics, knitted fabrics, and nonwoven fabrics in which these are mixed.
- clothes and other clothing products in addition to furniture such as T-shirts, handkerchiefs, scarves, towels, handbags, cloth bags, curtains, sheets, bedspreads, etc., before sewing The existing cloth before and after cutting is also included.
- the medium in addition to the above printing material, plain paper, high-quality paper, exclusive paper for inkjet recording such as glossy paper, and the like can be used.
- the medium include a plastic film that has not been surface-treated for inkjet printing (that is, an ink absorption layer is not formed), and a material such as paper coated with plastic and plastic.
- a film to which a film is bonded can also be used.
- the plastic is not particularly limited, and examples thereof include polyvinyl chloride, polyethylene terephthalate, polycarbonate, polystyrene, polyurethane, polyethylene, and polypropylene.
- a maintenance unit 8 is provided on one side (home position side) in the reciprocating movement direction B.
- the maintenance unit 8 is attached to the cap of the recording head 4 and the recording head 4 by a cap (not shown), a suction mechanism, a wiper, etc. in a state where the carriage 2 is in a maintenance position (home position that is a position facing the maintenance unit 8). It is possible to perform suction of ink from the configured ink ejection nozzles, wipe of the recording head 4, and the like.
- an ink that can set an ink cartridge that contains ink to be ejected from the recording head 4 to the medium on the side opposite to the home position side in the reciprocating direction B is settable.
- a cartridge setting unit 9 is provided. As shown in FIG. 3, the ink cartridge setting unit 9 to the recording head 4 are connected by a tube 15. The tube 15 is flexible, and the ink cartridge setting unit 9 is shown in FIGS. 1 and 2. It can be moved from the represented position. That is, when the carriage 2 is positioned on the side opposite to the home position side in the reciprocating direction B, the recording apparatus 1 of the present embodiment can open the lower portion.
- the carriage 2 of this embodiment can be equipped with a plurality of recording heads 4.
- Each recording head 4 is composed of an ink cartridge and a tube 15 set in an ink cartridge setting unit 9. It is connected.
- Each recording head 4 is connected to the drive substrate 3 of the recording head 4 by a cable 5 which is a flexible flat cable (FFC).
- the cable 5 is disposed from the drive substrate 3 to the head installation unit 10 and is connected to each recording head 4 via a position on the side surface side of the recording head 4.
- the cable 5 is connected to each recording head 4 from only one side surface (front side in FIG. 3) as viewed from the direction along the conveyance direction A as the position on the side surface side of the recording head 4.
- it is not limited to such a configuration. It may be connected to each recording head 4 from the side surfaces (front side and back side in FIG. 3) on both sides as seen from the direction along the transport direction A.
- each recording head 4 is attached to a head installation section 10 shown in FIG.
- the worker M places the recording head 4 on a predetermined position of the head installation unit 10 from the upper side of the head installation unit 10 (upstream side in the ejection direction C).
- the recording head 4 is fixed to the head installation portion 10 with screws from the lower side (downstream side in the ejection direction C).
- a plurality of positioning pins 14 for positioning the recording head 4 are formed in the head installation unit 10, and the recording head is exchanged to a position positioned by the positioning pins 14. 4 is mounted from the upper side, and screwed from the lower side at the screwing portion 11 to fix the recording head 4 to the head installation portion 10. That is, when replacing the recording head 4, the operator M removes the recording head 4 from the upstream side in the ejection direction C and fixes it from the downstream side in the ejection direction C.
- the replacement position of the recording head 4 is the position of the carriage 2 represented by the solid line in FIGS. 1 and 2 (home position side) and the position of the carriage 2 represented by the broken line in FIGS. 2 positions (that is, a plurality of positions) on the opposite side to the position side.
- FIG. 1 shows a state in which the worker M gets on the step 13 and places the recording head 4 on the head installation unit 10 from above.
- the recording apparatus 1 according to the present embodiment is larger than the worker M. For this reason, when the replacement position of the recording head 4 is only one, it is a heavy load to replace the recording head 4 on the back side as viewed from the position of the worker M.
- the recording apparatus 1 of this embodiment has two replacement positions of the recording head 4. For this reason, the recording head 4 on the back side when viewed from the position of the worker M on one side can be exchanged on the side opposite to the one side.
- the position of the carriage 2 represented by the broken line in FIGS. 1 and 2 (the side opposite to the home position side) is the first replacement position
- the position of the carriage 2 represented by the solid line in FIGS. The position on the position side and further outside the home position) is set as the second exchange position.
- the recording apparatus 1 of this embodiment includes a carriage 2 that can reciprocate with respect to a medium, and a plurality of recording heads 4 that are attached to the carriage 2 and eject ink onto the medium. .
- the carriage 2 can exchange the recording head 4 at a plurality of exchange positions (first exchange position and second exchange position) in the reciprocating direction B of the carriage 2, and the carriage 2 is in the exchange position.
- the recording head 4 to be replaced is accessible from the downstream side (lower side) in the ink ejection direction C.
- the recording head 4 at a position that can be easily replaced at each of the first replacement position and the second replacement position can be replaced, and the recording head 4 is accessed from the downstream side in the ink ejection direction C (in this embodiment, By screwing, the recording head 4 can be accessed from a position where there are few obstructing parts. Therefore, the load when exchanging the recording head 4 in the carriage 2 to which a plurality of recording heads 4 can be attached is reduced. Further, since the recording head 4 can be accessed from the downstream side (lower side) in the ink ejection direction C, the recording heads 4 can be arranged at high density, and the carriage 2 can be made small. It also makes it possible.
- the recording heads 4 are arranged at high density and screwed from the upstream side (upper side) in the ink ejection direction C, the interval between the recording heads 4 becomes narrow, and a tool for screwing is used. This is because screwing becomes difficult because the space for inserting the screw becomes small.
- “accessible to the recording head 4 to be replaced from the downstream side in the ink ejection direction C” means that the recording head 4 to be replaced can be accessed only from the downstream side in the ink ejection direction C. This includes the case where the exchanged recording head 4 can be accessed from directions other than the downstream side of the ink ejection direction C as in the recording apparatus 1 of FIG.
- the recording head 4 to be replaced can be accessed only from the downstream side in the ink ejection direction C.
- the recording head 4 can be inserted into the carriage 2 from below and the recording head 4 can be fixed to the carriage 2 from below. Possible configurations are listed.
- access the recording head 4 not only when the recording head 4 is directly accessed but also when the installation table 10 or the carriage 2 is accessed indirectly like screwing, “access the recording head 4”. Included.
- the recording apparatus 1 including the carriage 2 that can reciprocate with respect to the medium and the plurality of recording heads 4 that are attached to the carriage 2 and eject ink onto the medium is used.
- the carriage 2 is positioned at the first replacement position, accessed from the downstream side in the ink ejection direction C, a part of the recording heads 4 is replaced, and the carriage 2 is moved to a second replacement position different from the first replacement position. Therefore, it is possible to execute a method of replacing the ejection unit (recording head 4) that is accessed from the downstream side in the ink ejection direction C and replaces a part of the recording heads 4.
- the recording head 4 By executing such a replacement method of the discharge section, the recording head 4 at a position that can be easily replaced at each of the first replacement position and the second replacement position can be replaced, and the downstream side in the ink discharge direction C. By accessing the recording head 4, the recording head 4 can be accessed from a position where there are few obstructive parts. Therefore, it is possible to reduce a load when the recording head 4 is replaced in the carriage 2 to which a plurality of recording heads 4 can be attached.
- the recording apparatus 1 of this embodiment has access (screwing) from the downstream side in the ink ejection direction C and access from the upstream side in the ink ejection direction C (to the head installation unit 10 of the recording head 4). Both mounting and mounting are necessary. However, it goes without saying that the recording head 4 may be replaced only by access from the downstream side in the ink ejection direction C.
- the recording apparatus 1 of the present embodiment has the first replacement position on the opposite side to the home position side and the second replacement position on the home position side as the replacement position of the recording head 4. Yes.
- the exchange positions in the recording apparatus 1 of the present embodiment are provided on both sides in the reciprocating movement direction B with reference to the central portion in the reciprocating movement range of the carriage 2. That is, the exchange position is provided in the vicinity of both ends in the reciprocating direction B. For this reason, the recording head 4 can be accessed at a position where there are few obstructing parts, and the load when the recording head 4 is replaced can be reduced particularly effectively.
- the ink cartridge setting unit 9 is movable.
- the carriage 2 when the carriage 2 is in the replacement position, at least one of the parts located at the position facing the recording head 4 is movable. For this reason, when the recording head 4 is replaced, it is possible to reduce the load when the recording head 4 is replaced by moving the component (ink cartridge setting unit 9), and when the recording head 4 is not replaced.
- the apparatus By arranging the ink cartridge setting unit 9 at a position facing the recording head 4, the apparatus can be saved in space.
- the number of replaceable recording heads 4 is larger in the first replacement position where there are movable parts among the replacement positions than in the second replacement position where there are no movable parts. It is configured to increase.
- the reciprocating range of the carriage 2 can be shortened by increasing the number of replaceable recording heads 4 in the exchange position where there is a movable part than in the exchange position where there is no movable part.
- the recording apparatus 1 of the present embodiment accesses all the recording heads 4 from below (screwing) by moving the ink cartridge setting unit 9 at the first replacement position.
- the second exchange position it is impossible to access a part of the recording heads 4 on the side opposite to the home position side from below.
- the maintenance unit 8 of the present embodiment cannot move if all the recording heads 4 can be accessed from the lower side even at the second exchange position, so that the reciprocation range of the carriage 2 on the home position side is further outside. This is because the size of the device is suppressed, although the size of the device is increased. That is, the recording apparatus 1 of the present embodiment effectively saves the space of the apparatus.
- the carriage 2 when the carriage 2 is in the first replacement position, at least one of the components located at the position facing the recording head 4 can be moved using the recording apparatus 1 of the present embodiment.
- the ejection unit replacement method in which the number of the recording heads 4 to be replaced is larger than the number of the recording heads 4 to be replaced at the second replacement position.
- the reciprocating range of the carriage 2 is shortened by increasing the number of ejecting units (recording heads 4) that can be exchanged at an exchange position where there are movable parts compared to an exchange position where there are no movable parts. It becomes possible. For this reason, the apparatus can be effectively saved in space.
- the carriage 2 of the recording apparatus 1 of the present embodiment can detach the recording head 4 from the upstream side in the ink ejection direction C, and can fix the recording head 4 from the downstream side in the ink ejection direction C. Since a member such as an ink flow path is formed on the upstream side of the ink ejection direction C in the recording head 4, the recording head 4 can be fixed from the downstream side of the ink ejection direction C. The recording head 4 can be fixed without the members getting in the way. Further, by adopting a configuration in which the recording head 4 can be detached from the upstream side in the ink ejection direction C, the recording heads 4 can be easily arranged at high density, and the space of the apparatus can be effectively saved.
- the ejection section that detaches the recording head 4 from the upstream side in the ink ejection direction C and fixes the recording head 4 from the downstream side in the ink ejection direction C.
- the exchange method can be executed. As described above, by fixing the recording head 4 from the downstream side in the ink ejection direction C, the recording head 4 can be fixed without obstructing the upstream member of the recording head 4 in the ink ejection direction C. it can. Further, in the recording apparatus 1 of this embodiment in which the recording head 4 can be detached from the upstream side in the ink ejection direction C, the recording heads 4 can be easily arranged at high density, and the apparatus can be effectively saved in space. can do.
- the recording apparatus 1 has a recording head 4 that drives the recording head 4 at both end portions on the upstream side and the downstream side in the conveyance direction A of the carriage 2.
- the driving substrate 3 is provided.
- the cable 5 can be made shorter than the case where it is provided only at one end portion, and adverse effects caused by lengthening the cable (prone to transmission loss, picking up noise) Etc.) can be suppressed.
- the drive board 3 is connected to a main board (not shown) provided in the main body of the recording apparatus 1 using a cable supported by a cable support that can be changed in shape.
- the recording apparatus 1 of this embodiment when the recording head 4 is exchanged, when the recording head 4 is placed on the head installation unit 10, as shown in FIG. The recording head 4 is accessed from the end side. For this reason, the drive substrate 3 is provided at both end portions on the upstream side and the downstream side in the transport direction A of the carriage 2 so as not to interfere with the replacement of the recording head 4.
- the present invention is not limited to such a configuration.
- the recording head 4 when the recording head 4 is configured to be accessed from the front side of the recording apparatus 1, it is configured at both ends of the carriage 2 in the reciprocating direction B. It may be.
- the driving substrate 3 is configured in two upper and lower stages.
- the recording apparatus 1 is configured in one stage at each end (four sides) in the transport direction A and the reciprocating direction B. Also good. This is because by reducing the overall height of the driving substrate 3, it becomes easier to access the recording head 4 when the recording head 4 is replaced. However, in the case of such a configuration, it is particularly desirable that the drive substrate 3 be removable when the recording head 4 is replaced. This is because the operator M is particularly easy to access the recording head 4. Further, the drive substrate 3 may be configured to be movable so that the operator M can easily access the recording head 4.
- SYMBOLS 1 DESCRIPTION OF SYMBOLS 1 ... Recording apparatus (liquid discharge apparatus), 2 ... Carriage, 3 ... Drive board, 4 ... Recording head (discharge part), 5 ... Cable, 6 ... Guide rail, 7 ... Guide rail, 8 ... Maintenance part, 9 ... Ink Cartridge set part (parts), 10 ... head installation part, 11 ... screw fixing part, 12 ... support part, 13 ... stepping board, 14 ... positioning pin, 15 ... tube, M ... operator
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Abstract
Description
なお、「液体の吐出方向の下流側から交換する吐出部にアクセス可能」とは、液体の吐出方向の下流側のみから交換する吐出部にアクセス可能な場合のほか、液体の吐出方向の下流側以外の方向からも交換する吐出部にアクセス可能な場合も含む意味である。
図1は本実施例の記録装置1の概略正面図である。また、図2は本実施例の記録装置1の概略斜視図である。また、図3は本実施例の記録装置1の要部であるキャリッジ2の概略側面図である。また、図4は本実施例の記録装置1の要部であるキャリッジ2の概略平面図である。また、図5は本実施例の記録装置1の要部であるキャリッジ2を構成するヘッド設置部10の概略斜視図である。そして、図6は図5のX領域で表されるヘッド設置部10に記録ヘッド4を設置させた状態を表す概略平面図である。なお、図1から図6では、本実施例の記録装置1の概要を分かりやすく表現するため、一部構成部材を省略して表している。
なお、キャリッジ2はガイドレール6及び7に沿って搬送方向Aと交差する往復移動方向Bに往復移動可能である。そして、媒体に画像を形成する(記録する)際、本実施例の記録装置1は、記録ヘッド4からのインクの吐出を伴うキャリッジ2の往復移動方向Bへの移動と、媒体の搬送方向Aへの搬送と、を交互に行う。別の表現をすると、媒体に画像を形成する際、キャリッジ2の往復移動に対応して、媒体を間欠的に搬送させている。
記録ヘッド4を交換する際、作業者Mは、ヘッド設置部10の上側(吐出方向Cの上流側)から記録ヘッド4をヘッド設置部10の所定の位置に載置し、ヘッド設置部10の下側(吐出方向Cの下流側)から記録ヘッド4をヘッド設置部10にネジ止めして固定する。詳細には、図6で表されるように、ヘッド設置部10には記録ヘッド4の位置決めをする位置決めピン14が複数形成されており、該位置決めピン14で位置決めされた位置に交換する記録ヘッド4を上側から載置させ、ネジ止め部11において下側からネジ止めして記録ヘッド4をヘッド設置部10に固定する。すなわち、記録ヘッド4を交換する際、作業者Mは、吐出方向Cの上流側から記録ヘッド4を脱着し、吐出方向Cの下流側から固定する。
このため、第1交換位置及び第2交換位の各々の交換位置で交換しやすい位置の記録ヘッド4を交換できるとともに、インクの吐出方向Cの下流側から記録ヘッド4にアクセス(本実施例ではネジ止め)することで邪魔になる部品の少ない位置から記録ヘッド4にアクセスすることができる。したがって、複数の記録ヘッド4を取り付け可能なキャリッジ2において記録ヘッド4を交換する際の負荷を低減することができる構成になっている。また、インクの吐出方向Cの下流側(下側)から記録ヘッド4にアクセス可能な構成としていることで、記録ヘッド4を高密度に配置することも可能にしており、キャリッジ2を小さくすることも可能にしている。これは、例えば、記録ヘッド4を高密度に配置させつつインクの吐出方向Cの上流側(上側)からネジ止めする構成とすると、記録ヘッド4同士の間隔が狭くなり、ネジ止めするための工具を挿入するスペースが小さくなることでネジ止めが困難になるためである。
なお、「インクの吐出方向Cの下流側から交換する記録ヘッド4にアクセス可能」とは、インクの吐出方向Cの下流側のみから交換する記録ヘッド4にアクセス可能な場合のほか、本実施例の記録装置1のように、インクの吐出方向Cの下流側以外の方向からも交換する記録ヘッド4にアクセス可能な場合も含む意味である。インクの吐出方向Cの下流側のみから交換する記録ヘッド4にアクセス可能な構成としては、例えば、下側から記録ヘッド4をキャリッジ2に挿入できるとともにそのまま下側から記録ヘッド4をキャリッジ2に固定できる構成などが挙げられる。さらには、記録ヘッド4を交換するために、記録ヘッド4に直接アクセスする場合の他、ネジ止めのように間接的に設置台10やキャリッジ2にアクセスする場合も「記録ヘッド4にアクセス」することに含む。
このような吐出部の交換方法を実行することで、第1交換位置及び第2交換位置の各々の交換位置で交換しやすい位置の記録ヘッド4を交換できるとともに、インクの吐出方向Cの下流側から記録ヘッド4にアクセスすることで邪魔になる部品の少ない位置から記録ヘッド4にアクセスすることができる。したがって、複数の記録ヘッド4を取り付け可能なキャリッジ2において記録ヘッド4を交換する際の負荷を低減することができる。
図1で表されるように、本実施例の記録装置1は、第1交換位置ではインクカートリッジセット部9を移動させることで全ての記録ヘッド4に対して下側からのアクセス(ネジ止め)が可能になっているのに対し、第2交換位置ではホームポジション側とは反対側の一部の記録ヘッド4に対して下側からのアクセスができなくなっている。これは、第2交換位置でも全ての記録ヘッド4に対して下側からアクセスできる構成にすると、本実施例のメンテナンス部8は移動できないため、キャリッジ2のホームポジション側の往復移動範囲をさらに外側に延ばさなくてはならず装置が大型化してしまうが、この装置の大型化を抑制しているためである。すなわち、本実施例の記録装置1は、効果的に装置を省スペース化させている。
記録ヘッド4におけるインクの吐出方向Cの上流側にはインクの流路などの部材が形成されるため、インクの吐出方向Cの下流側から記録ヘッド4を固定可能な構成とすることで、該部材が邪魔になることなく記録ヘッド4を固定することができる。また、インクの吐出方向Cの上流側から記録ヘッド4を脱着可能な構成とすることで、記録ヘッド4を高密度に配置しやすくなり、効果的に装置を省スペース化することができる。
Claims (8)
- 媒体に対して往復移動可能なキャリッジと、
前記キャリッジに取り付けられて前記媒体に液体を吐出する複数の吐出部と、を備え、
前記キャリッジは、該キャリッジの往復移動方向における複数の交換位置で、前記吐出部を交換可能であり、
前記キャリッジが前記交換位置にある場合において、前記液体の吐出方向の下流側から、交換する前記吐出部にアクセス可能に構成されていることを特徴とする液体吐出装置。 - 請求項1に記載の液体吐出装置において、
前記交換位置は、前記キャリッジの往復移動範囲における中央部を基準にして、前記往復移動方向における両側に設けられていることを特徴とする液体吐出装置。 - 請求項1又は2に記載の液体吐出装置において、
前記キャリッジが前記交換位置にある場合において前記吐出部と対向する位置にある部品の少なくとも1つは、移動可能であることを特徴とする液体吐出装置。 - 請求項3に記載の液体吐出装置において、
前記交換位置のうち、移動可能な前記部品がある交換位置では、移動可能な前記部品がない交換位置よりも、交換可能な前記吐出部の数が多いことを特徴とする液体吐出装置。 - 請求項1から4のいずれか1項に記載の液体吐出装置において、
前記キャリッジは、前記液体の吐出方向の上流側から前記吐出部を脱着可能であり、前記液体の吐出方向の下流側から前記吐出部を固定可能であることを特徴とする液体吐出装置。 - 媒体に対して往復移動可能なキャリッジと、前記キャリッジに取り付けられて前記媒体に液体を吐出する複数の吐出部と、を備える液体吐出装置の前記吐出部の交換方法であって、
前記キャリッジを第1交換位置に位置させて、前記液体の吐出方向の下流側からアクセスして一部の前記吐出部を交換し、
前記キャリッジを前記第1交換位置とは異なる第2交換位置に位置させて、前記液体の吐出方向の下流側からアクセスして一部の前記吐出部を交換することを特徴とする吐出部の交換方法。 - 請求項6に記載の吐出部の交換方法において、
前記キャリッジが前記第1交換位置にある場合において前記吐出部と対向する位置にある部品の少なくとも1つは、移動可能であり、
前記第1交換位置で交換する前記吐出部の数は、前記第2交換位置で交換する前記吐出部の数よりも多いことを特徴とする吐出部の交換方法。 - 請求項6又は7に記載の吐出部の交換方法において、
前記第1交換位置及び前記第2交換位置において、前記液体の吐出方向の上流側から前記吐出部を脱着し、前記液体の吐出方向の下流側から前記吐出部を固定することを特徴とする吐出部の交換方法。
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EP17802648.0A EP3466691B1 (en) | 2016-05-25 | 2017-05-17 | Liquid discharge device and method for replacing discharge unit |
CN201780031538.0A CN109153257B (zh) | 2016-05-25 | 2017-05-17 | 液体喷出装置以及喷出部的更换方法 |
US16/304,046 US11059308B2 (en) | 2016-05-25 | 2017-05-17 | Liquid discharging apparatus and method for replacing discharging unit |
BR112018074320-8A BR112018074320A2 (pt) | 2016-05-25 | 2017-05-17 | aparelho para descarga de líquido e método para substituir unidade de descarga |
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