JP4710641B2 - Liquid ejecting apparatus and control method thereof - Google Patents

Description

  The present invention relates to a liquid ejecting apparatus and a control method thereof. More specifically, more specifically, a liquid ejecting apparatus in which a liquid cartridge disposed at a fixed position with respect to the casing and a liquid ejecting head displaced with respect to the casing are coupled by a flexible liquid supply tube. In addition, the present invention relates to a method for controlling the liquid ejecting apparatus.

  In many liquid ejecting apparatuses, the entire surface of the recording material is scanned by the carriage by combining the operation of conveying the recording material in a predetermined conveying direction and the operation of reciprocating the carriage in a direction intersecting the conveying direction. Let The carriage is loaded with a liquid ejecting head for ejecting liquid, thereby ejecting the liquid onto an arbitrary area on the surface of the recording material.

  Further, in a liquid ejecting apparatus that ejects a relatively large amount of liquid, a liquid cartridge that stores liquid may be mounted separately from the liquid ejecting head and the carriage. In such a case, the liquid cartridge is fixed to a predetermined position in the casing of the liquid ejecting apparatus, while the liquid supply tube formed of a flexible material that bends or expands according to the displacement of the liquid ejecting head. The liquid ejecting head is connected. Thereby, the mass of the carriage that is displaced in accordance with the liquid ejecting operation is reduced, and high-speed movement of the carriage is realized. Further, since a large liquid cartridge can be loaded, the continuous operation time of the liquid ejecting apparatus is extended.

  By the way, as a liquid supply tube used in the above applications, a multi-row tube in which a plurality of liquid flow paths are arranged in parallel and integrated is often used. Since the multi-row tube can individually distribute different types of liquids, for example, color materials having different colors can be supplied together in a color printer. The multi-row tube has a tape-like shape as a whole by arranging a plurality of liquid flow paths on one plane. Therefore, the direction perpendicular to the arrangement plane of the liquid flow paths is as flexible as a single tube, and the load applied to the reciprocating movement of the carriage is small.

  In the liquid ejecting apparatus using the liquid supply tube, a signal cable or the like for transmitting a signal for driving the liquid ejecting head is also integrated with the liquid supply tube to form a coupling member assembly. That is, a flat cable in which a plurality of signal cables are arranged on one plane and a tape-like multi-row tube as described above are laminated to form a coupling member assembly and assembled together in the manufacture of the liquid ejecting apparatus. As a result, the number of manufacturing steps of the liquid ejecting apparatus can be reduced.

Patent Document 1 below discloses a technique related to an assembly including a liquid supply tube used in the above-described application. This document describes that an ink tube, a flat cable, a sponge tape, and the like are integrated by a binding tool to form a coupling member assembly.
JP 2001-171145 A

  In a liquid ejecting apparatus using a liquid supply tube, the liquid supply tube repeatedly bends or stretches uniformly from end to end as the carriage reciprocates. On the other hand, when the liquid ejecting apparatus is not operating, the carriage on which the liquid ejecting head is mounted stands by at a specific position called a home position. Therefore, the deformed portion of the liquid supply tube that occurs when the carriage is at the home position is a specific fixed portion.

  On the other hand, the liquid supply tube is formed of a polymer material such as polypropylene (PP), polyethylene (PE), olefin-based thermoplastic elastomer (TPE), styrene-based TPE, polyamide-based TPE and urethane-based TPE. Is done. This type of material undergoes creep deformation when a deformation stress is applied for a long time even if its size is below the yield point. In the liquid supply tube including the creep-deformed portion, the elastic modulus with respect to the bending deformation in a specific direction is different between a portion where the creep deformation has occurred and a portion where the creep deformation has not occurred. Accordingly, the drive addition of the carriage that reciprocates while deforming such a liquid supply tube also varies. Therefore, as a result, the recorded image quality may be uneven in the reciprocating direction of the carriage.

  Therefore, for the purpose of solving the above problems, as a first embodiment of the present invention, a housing, a fixing member that contains a liquid cartridge and is fixed in a relative position with respect to the housing, and a relative position with respect to the housing are displaced. A liquid ejecting apparatus including a carriage loaded with a liquid ejecting head that operates, and a liquid supply tube that allows the liquid cartridge and the liquid ejecting head to communicate with each other, wherein the liquid supply tube bends or expands as the carriage moves. Immediately after startup, a deformation detection unit that performs a deformation detection operation that detects creep deformation that has occurred in the liquid supply tube, and a deformation that performs a deformation elimination operation that eliminates the creep deformation detected by the deformation detection unit from the liquid supply tube A liquid ejecting apparatus including a canceling operation unit is provided. As a result, the liquid ejecting apparatus detects the creep deformation generated in the liquid supply tube and executes an operation for eliminating the deformation. Therefore, it is possible to prevent the recorded image from being deteriorated due to the creep deformation of the liquid supply tube.

  According to one embodiment, in the liquid ejecting apparatus, the deformation detecting unit detects creep deformation based on a continuous non-operation time during which the liquid ejecting apparatus has not been continuously operated. Thereby, the deformation of the liquid supply tube can be reliably detected with a relatively simple structure.

  According to another embodiment, in the liquid ejecting apparatus, the deformation elimination operation unit changes the execution time or the number of executions of the deformation elimination operation according to the length of the continuous non-operation time. As a result, it is possible to efficiently execute the deformation elimination operation and increase the effective recording operation time. Moreover, even when the downtime is long and large creep deformation occurs, it can be surely removed.

  According to another embodiment, in the liquid ejecting apparatus, the deformation detection unit detects creep deformation based on fluctuations in driving power that displaces the carriage. Thereby, since the creep deformation actually occurring in the liquid supply tube is detected, the creep deformation elimination operation can be performed efficiently and the deformation can be surely removed regardless of the degree of creep deformation.

  According to another embodiment, in the liquid ejecting apparatus, the deformation detection unit performs the deformation detection operation again after the deformation elimination operation is performed, and determines again whether or not the deformation elimination operation is necessary. As a result, creep deformation can be reliably removed, and the accuracy of the recording operation can be improved.

  According to another embodiment, in the liquid ejecting apparatus, the deformation elimination operation unit performs the deformation elimination operation by reciprocating the range in which the carriage can be displaced from end to end. Thereby, the residual stress can be eliminated over the entire length of the liquid supply tube, and creep deformation can be eliminated.

  According to another embodiment, in the liquid ejecting apparatus, the deformation eliminating operation unit moves the carriage to a correction position where the stress that cancels the creep deformation acting on the liquid supply tube is maximized, and maintains the state. By doing so, the deformation elimination operation is executed. Thereby, the electric power required for creep deformation elimination operation can be reduced, and creep deformation can be removed with high energy efficiency.

  According to another embodiment, in the liquid ejecting apparatus, the deformation relieving operation unit reciprocates the carriage within a correction section including a correction position where the stress that cancels the creep deformation acting on the liquid supply tube is maximized. The deformation eliminating operation is executed by moving the object. As a result, even when there is a variation in the position of the portion having the largest creep deformation, the deformation eliminating operation can be reliably performed on the portion having the largest creep deformation, so that the creep deformation can be efficiently eliminated.

  According to another embodiment, in the liquid ejecting apparatus, the deformation elimination operation unit sets the position of the carriage when the load on the means for driving the carriage reciprocating movement is the largest as the correction position. Thereby, the creep deformation having the greatest influence on the movement of the carriage can be efficiently eliminated.

  Further, as a second aspect of the present invention, a casing, a fixing member including a liquid cartridge and fixed in a relative position with respect to the casing, and a liquid ejecting head that operates while displacing the relative position with respect to the casing are loaded. A method of controlling a liquid ejecting apparatus comprising a carriage and a liquid supply tube for communicating a liquid cartridge and a liquid ejecting head, wherein the liquid supply tube bends or extends as the carriage moves. There is provided a control method for executing a deformation detection operation for detecting a creep deformation generated in a tube and a deformation elimination operation for eliminating the creep deformation detected by the deformation detection operation. Thereby, regardless of the structure of the liquid ejecting apparatus, the influence on the recording quality due to the creep deformation of the liquid supply tube can be eliminated by software.

  The summary of the invention does not enumerate all necessary features of the present invention. Further, a sub-combination of these feature groups can be an invention.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 shows an ink inkjet recording apparatus 100 that includes an ink cartridge 180 loaded at a specific position and a recording head 172 coupled to the ink cartridge 180 via an ink supply tube 210 (not shown). It is sectional drawing which shows the whole structure. As shown in the figure, the ink jet recording apparatus 100 is arranged in a rear part (right side in the figure) and a feeding part 110 and is sequentially arranged from the feeding part 110 forward (left side in the figure). The transport unit 130, the platen 140, and the discharge unit 150 are integrally formed by the housing 102. A carriage 170 is disposed above the platen 140, and a recording operation is performed between the carriage 170 and the platen 140. Further, a cover 160 integral with a discharge tray 162 that functions by opening the lower end as a hinge is provided on the front surface (left side in the figure) of the housing 102.

  The feeding unit 110 includes a hopper 116 that pushes forward the vicinity of the lower end of the recording paper 190 loaded on the paper support 112, an edge guide 114 that positions the side edge of the recording paper 190, and the recording paper 190 pushed out by the hopper 116. The sheet feeding roller 120 that rotates and contacts the recording paper 190 is taken in the ink jet recording apparatus 100 one by one from the paper support 112.

  The conveyance unit 130 is rotated and driven with respect to the recording sheet 190 that has been taken in. The conveyance driving roller 131 is in contact with the lower side, and is urged downward by the roller holder to cause the recording sheet 190 to move toward the conveyance driving roller 131. A conveyance driven roller 132 for pressing is provided. By sandwiching the recording paper 190 between the transport driving roller 131 and the transport driven roller 132, the captured recording paper 190 is fed onto the platen 140.

  On the platen 140, the recording paper 190 is kept at a predetermined height by the platen 140 contacting the lower surface. On the other hand, the carriage 170 disposed above the platen 140 ejects ink from the recording head 172 mounted on the bottom surface thereof to form an image on the upper surface of the recording paper 190. The carriage 170 is guided by a pair of guide rails 174 extending in the depth direction with respect to the paper surface of the drawing, and reciprocates in a direction orthogonal to the conveyance direction of the recording paper 190. Therefore, by combining the conveyance of the recording paper 190 and the reciprocating movement of the carriage 170, an image can be formed in an arbitrary area of the entire upper surface of the recording paper 190.

  A discharge unit 150 disposed in front of the platen 140 (left side in the figure) includes a discharge driving roller 151 that contacts the recording paper 190 from below, and a discharge driving roller that contacts the recording paper 190 from above and discharges the recording paper 190. The recording paper 190 having an image formed thereon is sent to the upper surface of the opened discharge tray 162.

  Further, in the ink jet recording apparatus 100, the ink cartridge 180 that stores ink to be ejected onto the recording paper 190 is stored below the feeding unit 110. That is, as shown in the drawing, the cartridge holder 184 that receives the ink cartridge 180 is fixed near the rear bottom of the ink jet recording apparatus 100, and the ink cartridge 180 is inserted from the rear part of the ink jet recording apparatus 100 into the cartridge holder 184. Is loaded and unloaded. For this reason, an attachment / detachment lever 182 for attaching / detaching the ink cartridge 180 is also provided at the rear part of the ink jet recording apparatus 100. Further, the ink stored in the ink cartridge 180 is supplied to an ink supply tube 210 described later via an ink supply path 186 disposed in the back of the cartridge holder 184.

  The ink jet recording apparatus 100 further includes a deformation detection unit 310 that detects creep deformation of the ink supply tube 210 described later, and a deformation elimination operation unit 320 that executes an operation for eliminating the detected creep deformation. ing. The deformation detection unit 310 and the deformation elimination operation unit 320 are mounted on the ink jet recording apparatus 100 as an electronic circuit 300 that stores a control program for executing such a function.

  FIG. 2 is a perspective view showing the internal mechanism 200 of the ink jet recording apparatus 100 shown in FIG. As shown in the figure, a conveyance motor 118 that drives the feeding unit 110 and the conveying unit 130 is disposed on the right side of the feeding unit 110 in the drawing. A carriage motor 176 that drives reciprocation of the carriage 170 is disposed on the left side of the feeding unit 110. Further, a discharge motor 154 for driving the discharge drive roller 151 is disposed on the side of the discharge unit 150.

  Further, the internal mechanism 200 includes an ink supply tube 210 that supplies ink from the ink cartridge 180 to the recording head 172. At one end of the ink supply tube 210, an ink cartridge 180 loaded in the lower part of the internal mechanism 200 and a coupling member 212 for connecting the ink supply tube 210 are attached. A coupling member 214 that connects the ink supply tube 210 to the recording head 172 is attached to the other end of the ink supply tube 210.

  FIG. 3 is a plan view showing a state in which the internal mechanism 200 shown in FIG. 2 is looked down from above. As shown in the drawing, behind the internal mechanism 200 (upward in the drawing), a feeding unit 110 including a paper support 112, a transport motor 118, and a carriage motor 176 are arranged. A discharge unit 150 including a platen 140 and a discharge driven roller 152 is disposed in front of the internal mechanism 200 (downward in the drawing).

  Further, on the right side of the platen 140, a carriage 170 and an ink supply tube 210 coupled to the carriage 170 via a coupling member 214 are disposed. As shown in the figure, the position where the carriage 170 is closest to the right is the home pojosin of the ink jet recording apparatus 100. Therefore, when the ink jet recording apparatus 100 is in a stopped state or a standby state, the ink supply tube 210 closest to the coupling portion with respect to the carriage 170 is deformed into a semicircular shape.

  4 is a plan view showing the internal mechanism 200 from the same viewpoint as FIG. However, in FIG. 4, the carriage 170 has moved slightly to the left. Therefore, the cap member 220 hidden under the carriage 170 appears at the home position. The cap member 220 seals the recording head 172 from below the carriage 170 at the home position, and prevents the recording head 172 from being clogged due to drying of ink or the like. In addition, the ink has a function of removing ink thickened during stop or standby by sucking ink from the recording head 172.

  As shown in FIG. 4, when the carriage 170 moves to the left for the recording operation, the bent portion of the ink supply tube 210 moves away from the connection portion with respect to the carriage 170. Ideally, also in this case, it is preferable that the bent portion of the ink supply tube 210 has a semicircular shape, and the portions other than the bent portion extend straight. That is, if the constant deformation continuously moves as the carriage 170 moves, the load on the carriage motor 176 becomes constant over the entire reciprocating region of the carriage 170. However, when the carriage 170 has stopped at the home position for a long period of time, creep deformation occurs in the ink supply tube 210.

  5, 6, and 7 are diagrams illustrating the occurrence of creep deformation of the ink supply tube 210 in the ink supply path 400 of the ink jet recording apparatus 100, the influence thereof, and the elimination thereof. In these drawings, the same reference numerals are given to the same constituent elements as those in FIGS. 1 to 4, and redundant description will be omitted.

  FIG. 5 is a diagram illustrating the overall shape of the ink supply tube 210 when the carriage 170 is at the home position. The ink supply tube 210 is formed to be straight when no deformation stress is applied. On the other hand, when the carriage 170 is at the home position, as shown in FIG. 5, a portion of the ink supply tube 210 closest to the carriage 170 forms a semicircular bent portion 213. Further, this state is always maintained when the ink jet recording apparatus 100 is in a stopped state or in a standby state. For this reason, when the ink jet recording apparatus 100 has not been operated for a long time for some reason, creep deformation occurs in the bent portion 213, and a creep deformed portion 211 indicated by hatching in the drawing is formed. The creep deformed portion 211 tries to maintain a substantially semicircular shape formed in the ink supply tube 210 even when the carriage 170 moves and the deformation stress is removed.

  FIG. 6 is a diagram illustrating the shape of the ink supply tube 210 when the carriage 170 is moved from the home position in a state where the creep deformation portion 211 is formed as described above. As the carriage 170 moves, the semicircular bent portion 213 formed in the ink supply tube 210 also moves. Here, as shown by a dotted line in the drawing, the bent portion 213 sequentially moves toward the coupling member 212. However, as shown in FIG. 5, in the ink supply tube 210, when a creep deformation portion is formed in the vicinity of the end portion on the carriage 170 side, the creep deformation portion 211 has a semicircular shape regardless of the movement of the carriage 170. Try to keep the shape. Therefore, the deformation formed in the ink supply tube 210 when the carriage 170 moves is biased toward the side closer to the carriage 170 as shown by the solid line in the drawing.

  In the actual ink jet recording apparatus 100, since other members exist on the side of the ink supply tube 210 (up and down in the drawing), the above-described deformation does not occur. Instead, fluctuations occur in the driving force for the carriage 170 that moves while the ink supply tube 210 is deformed. For this reason, the moving speed of the carriage 170 may change to deteriorate the recording quality. On the other hand, the ink jet recording apparatus 100 includes a deformation eliminating operation unit 320 and prevents creep deformation of the ink supply tube 210, thereby preventing recording quality from being deteriorated.

  FIG. 7 is a diagram for explaining an example of the deformation eliminating operation performed by the deformation eliminating operation unit 320 with respect to the ink supply tube 210 including the creep deforming portion 211. As shown in the figure, when the carriage 170 moves to the farthest position from the home position, the creep deformed portion 211 indicated by the diagonal lines is almost straight, and further, a part is bent in the direction opposite to the creep deformation beyond the straight. Is done. For this reason, the deformation stress that cancels the creep deformation acts on the ink supply tube 210 most greatly.

  Furthermore, the internal residual stress of the ink supply tube 210 is dispersed and creep deformation is caused by reciprocating the carriage 170 in a short movement range in a state where a deformation stress that cancels creep deformation is applied to the ink supply tube 210. Can be resolved more efficiently. By performing the recording operation after eliminating the creep deformation of the ink supply tube 210 by such an operation, the desired high recording quality of the ink jet recording apparatus 100 is maintained.

  Note that while the deformation elimination operation unit 320 is executing the deformation elimination operation, the ink jet recording apparatus 100 cannot execute the recording operation. Therefore, it is preferable to execute the deformation eliminating operation only when creep deformation occurs in the ink supply tube 210. Therefore, in the ink jet recording apparatus 100, when the deformation detection unit 310 detects a creep deformation that has occurred in the ink supply tube 210, it instructs the deformation elimination operation unit 320 to execute the deformation elimination operation.

  The deformation detection unit 310 can be formed by, for example, a timer that measures the continuous non-operation time of the ink jet recording apparatus 100. That is, in each ink jet recording apparatus 100, the physical properties of the material forming the ink supply tube 210 are known in advance. Therefore, the creep deformation occurring in the ink supply tube 210 can be predicted with high accuracy by measuring the continuous non-operation time. Accordingly, the deformation elimination operation unit 320 executes the deformation elimination operation for a time or the number of times sufficient to eliminate the predicted creep deformation amount.

  Further, as described above, the creep deformation generated in the ink supply tube 210 becomes apparent as a change in the driving load of the carriage 170. Therefore, it is possible to form the deformation detection unit 310 that monitors the drive current of the carriage motor 176 and determines that creep deformation has occurred in the ink supply tube 210 when the fluctuation range exceeds a predetermined threshold.

  In addition, the position of the carriage 170 when the drive current for the ink supply tube 210 including the creep deformed portion 211 becomes the maximum can be detected as the correction position where the deformation stress for eliminating the creep deformation becomes the largest. Accordingly, when the carriage 170 is stopped at this correction position, or a certain section including the correction position is used as a correction section, and the position of the largest portion of the creep deformation is varied by repeatedly passing through the correction section. But it can be reliably corrected. On the other hand, by repeatedly passing the entire range of the reciprocating movement of the carriage 170 without detecting a specific correction position, creep deformation can be reliably eliminated by a simple control method.

  When monitoring the drive current of the carriage motor 176, the creep deformation actually occurring in the ink supply tube 210 can be detected. Therefore, the creep deformation remaining in the ink supply tube 210 can be detected again after the deformation eliminating operation by the deformation eliminating operation unit 320 is completed. As a result, when the remaining creep deformation is detected, the deformation elimination operation unit 320 is operated again to reliably remove the creep deformation.

  In the above embodiment, the specific configuration has been described by taking the ink jet recording apparatus 100 as an example. However, the liquid ejecting apparatus may be, for example, a color material ejecting apparatus or an organic EL display in manufacturing a color filter for a liquid crystal display. In addition, it can be implemented as an electrode forming device in the manufacture of FED (surface emitting display), a sample ejecting head used for biochip manufacturing, a sample ejecting head as a precision pipette, a device for drawing pictures, characters, etc. However, it is not limited to these.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. In addition, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

1 is a cross-sectional view showing an overview of an inkjet recording apparatus 100 as a whole. 2 is a perspective view showing an internal mechanism 200 extracted from the ink jet recording apparatus 100. FIG. FIG. 6 is a plan view showing a state in which the internal mechanism 200 is looked down from above when the carriage 170 is at the home position. FIG. 6 is a plan view showing a state in which an internal mechanism 200 is looked down from above when a carriage 170 moves from a home position. FIG. 6 is a diagram schematically illustrating the shape of an ink supply tube 210 when a carriage 170 is at a home position. FIG. 5 is a diagram schematically illustrating the shape of an ink supply tube 210 when a carriage 170 is moved from a home position in a state where creep deformation has occurred. FIG. 6 is a diagram schematically showing the position of a carriage 170 where a deformation stress that cancels creep deformation acts on the ink supply tube 210 in which creep deformation has occurred.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Inkjet recording device, 110 Feeding part, 112 Paper support, 114 Edge guide, 116 Hopper, 118 Conveyance motor, 120 Feeding roller, 130 Conveying part, 131 Conveyance driving roller, 132 Conveyance driven roller, 140 Platen, 150 Discharge 151, discharge drive roller, 152 discharge driven roller, 154 discharge motor, 160 cover, 162 discharge tray, 170 carriage, 172 recording head, 174 guide rail, 176 carriage motor, 180 ink cartridge, 182 detachable lever, 184 cartridge holder, 186 Ink feed path, 190 recording paper, 200 internal mechanism, 210 ink supply tube, 211 creep deformed portion, 212, 214 coupling member, 213 bent portion, 220 cap Member, 300 electronic circuit, 310 deformation detection unit, 320 deformation elimination operation unit, 400 ink supply path

Claims (9)

A housing,
A carriage mounted with a liquid ejecting head and reciprocating while displacing the relative position with respect to the housing;
The liquid cartridge the relative positions are fixed relative to the housing, it communicates with the liquid ejecting head, a liquid supply tube to flex or extend with the reciprocating movement of the carriage,
Immediately after launching, the modification detection unit to perform the deformation detection operation creep deformation occurring in the liquid supply tube, to detect,
A deformation resolving operation unit that performs a deformation resolving operation for resolving the creep deformation detected by the deformation detecting unit from the liquid supply tube ;
The deformation detection unit detects the creep deformation based on a continuous downtime when the liquid ejecting apparatus has not been operated continuously,
The liquid ejecting apparatus according to claim 1, wherein the deformation elimination operation unit performs the deformation elimination operation by reciprocating a range in which the carriage can be displaced from end to end . A housing,
A carriage mounted with a liquid ejecting head and reciprocating while displacing the relative position with respect to the housing;
The liquid cartridge the relative positions are fixed relative to the housing, it communicates with the liquid ejecting head, a liquid supply tube to flex or extend with the reciprocating movement of the carriage,
A deformation detection unit that performs a deformation detection operation for detecting creep deformation that has occurred in the liquid supply tube immediately after being activated; and
A deformation resolving operation unit that performs a deformation resolving operation for resolving the creep deformation detected by the deformation detecting unit from the liquid supply tube ;
The deformation detection unit detects the creep deformation based on a continuous downtime when the liquid ejecting apparatus has not been operated continuously,
The deformation elimination operation unit moves the carriage to a correction position where the stress that attempts to counteract the creep deformation acting on the liquid supply tube is maximized, and maintains the state to move the deformation. liquid-jet apparatus characterized <br/> to run. A housing,
A carriage mounted with a liquid ejecting head and reciprocating while displacing the relative position with respect to the housing;
The liquid cartridge the relative positions are fixed relative to the housing, it communicates with the liquid ejecting head, a liquid supply tube to flex or extend with the reciprocating movement of the carriage,
A deformation detection unit that performs a deformation detection operation for detecting creep deformation that has occurred in the liquid supply tube immediately after being activated; and
A deformation resolving operation unit that performs a deformation resolving operation for resolving the creep deformation detected by the deformation detecting unit from the liquid supply tube ;
The deformation detection unit detects the creep deformation based on a continuous downtime when the liquid ejecting apparatus has not been operated continuously,
The deformation elimination operation unit reciprocates the carriage by reciprocating the carriage in a correction section including a correction position where the stress that attempts to counteract the creep deformation acting on the liquid supply tube is maximized. A liquid ejecting apparatus that performs an operation . The liquid ejection according to any one of claims 1 to 3, wherein the deformation elimination operation unit changes an execution time or an execution count of the deformation elimination operation according to a length of the continuous non-operation time. apparatus. A housing,
A carriage mounted with a liquid ejecting head and reciprocating while displacing the relative position with respect to the housing;
The liquid cartridge the relative positions are fixed relative to the housing, it communicates with the liquid ejecting head, a liquid supply tube to flex or extend with the reciprocating movement of the carriage,
A deformation detection unit that performs a deformation detection operation for detecting creep deformation that has occurred in the liquid supply tube immediately after being activated; and
A deformation resolving operation unit that performs a deformation resolving operation for resolving the creep deformation detected by the deformation detecting unit from the liquid supply tube ;
The deformation detection unit detects the creep deformation based on a change in driving power that displaces the carriage,
The liquid ejecting apparatus according to claim 1, wherein the deformation elimination operation unit performs the deformation elimination operation by reciprocating a range in which the carriage can be displaced from end to end . A housing,
A carriage mounted with a liquid ejecting head and reciprocating while displacing the relative position with respect to the housing;
The liquid cartridge the relative positions are fixed relative to the housing, it communicates with the liquid ejecting head, a liquid supply tube to flex or extend with the reciprocating movement of the carriage,
A deformation detection unit that performs a deformation detection operation for detecting creep deformation that has occurred in the liquid supply tube immediately after being activated; and
A deformation resolving operation unit that performs a deformation resolving operation for resolving the creep deformation detected by the deformation detecting unit from the liquid supply tube ;
The deformation detection unit detects the creep deformation based on a change in driving power that displaces the carriage,
The deformation elimination operation unit moves the carriage to a correction position where the stress that attempts to counteract the creep deformation acting on the liquid supply tube is maximized, and maintains the state to move the deformation. a liquid ejecting apparatus characterized by a run. A housing,
A carriage mounted with a liquid ejecting head and reciprocating while displacing the relative position with respect to the housing;
The liquid cartridge the relative positions are fixed relative to the housing, it communicates with the liquid ejecting head, a liquid supply tube to flex or extend with the reciprocating movement of the carriage,
A deformation detection unit that performs a deformation detection operation for detecting creep deformation that has occurred in the liquid supply tube immediately after being activated; and
A deformation resolving operation unit that performs a deformation resolving operation for resolving the creep deformation detected by the deformation detecting unit from the liquid supply tube ;
The deformation detection unit detects the creep deformation based on a change in driving power that displaces the carriage,
The deformation elimination operation unit reciprocates the carriage by reciprocating the carriage in a correction section including a correction position where the stress that attempts to counteract the creep deformation acting on the liquid supply tube is maximized. A liquid ejecting apparatus that performs an operation . 8. The deformation detection unit according to any one of claims 5 to 7, wherein the deformation detection unit performs the deformation detection operation again after the deformation cancellation operation is performed, and determines again whether the deformation cancellation operation is necessary. The liquid ejecting apparatus described. The deformable resolving section is claim 2, wherein the correcting position a position of the carriage when the load for the means for driving the reciprocating movement of the carriage is largest, according to claim 3, of the claims 6 and claim 7 The liquid ejecting apparatus according to any one of the above.

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