JP2010240877A - Recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inkjet recording device, capable of preventing a trouble by ink mist by recovering the ink mist floating within the device by a simple structure without use of a suction fan or the like. <P>SOLUTION: The inkjet recording device configured to perform recording by discharge ink from a recording head 11 to a recording medium P includes a fin part 54 provided on a side surface of a carrying rotator 53 disposed on the recording head side relative to the recording medium and a mist recovery duct 55 covering the carrying rotator. The floating ink mist is guided to a predetermined position by an air flow generated by the rotation of the fin part through the mist recovering duct. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a recording apparatus that performs recording by discharging ink from a recording head to a recording medium.

  In an ink jet recording apparatus that performs recording by ejecting ink from a recording head to a recording medium, when ejecting ink for the purpose of recording or the like, a fine mist-like droplet (mainly associated with a main droplet related to image recording) May be referred to as ink mist). Since the ink mist is a small droplet compared to the main droplet, the moving speed is slow, and most of the ink mist floats in the air without landing on the recording medium. In addition, when the main droplets land on the recording medium, the droplets that bounce off the recording medium may float as ink mist.

  These ink mists may cause the following problems. Image quality deteriorates due to ink mist adhering to the recording medium. In addition, if ink mist adheres to an encoder provided to increase the driving accuracy of the carriage, the reading accuracy of the encoder decreases. Further, when ink mist adheres to a sliding portion (for example, a guide shaft) with the carriage unit, sliding resistance increases due to subsequent thickening and solidification due to solvent evaporation, which causes a malfunction of the carriage unit. Further, if ink mist adheres to metal parts or electrical parts, the parts may be corroded or deteriorated. In addition, if ink mist is scattered around the recording apparatus, the environment is deteriorated, and the ink mist adheres to a recorded recording medium, thereby degrading image quality and soiling the operator's hand and clothes. Sometimes.

  For the above reasons, ink mist processing is desired in the ink jet recording apparatus. For example, as can be seen in Patent Document 1, a configuration has been proposed in which ink mist is discharged to the outside of the apparatus main body together with air using a fan.

JP 2004-181704 A

  In the ink jet recording apparatus, higher resolution is progressing even in a low-priced machine, and accordingly, the amount of ink discharged is increased, and the amount of ink mist generated is also increasing. In addition, the resolution of the encoder is improved and the ink mist is easily affected. From these viewpoints, there is an increasing need to reduce contamination by ink mist. On the other hand, in the ink mist discharge means using a fan, there is a problem that the cost and noise increase because a dedicated fan is used. is there.

  The present invention has been made in view of such a technical problem, and aims to improve a conventional apparatus. A more specific object of the present invention is to provide a recording apparatus capable of collecting ink mist floating in the recording apparatus with a simple configuration and preventing problems due to ink mist.

  The present invention relates to a recording apparatus that performs recording by ejecting ink from a recording head to a recording medium, and a fin portion provided on a conveying rotator disposed on the recording head side with respect to the recording medium, and the conveying rotation. And a mist collecting duct covering the body, wherein the floating ink mist is guided to a predetermined position by an air flow generated through the mist collecting duct by the rotation of the fin portion.

  According to the present invention, there is provided a recording apparatus capable of collecting ink mist floating in the recording apparatus with a simple configuration and preventing problems due to ink mist.

Perspective view of recording apparatus Vertical section of the recording device FIG. 3 is a longitudinal sectional view during recording of the ink mist collecting unit according to the first embodiment. FIG. 3 is a longitudinal sectional view of the ink mist collecting unit according to the first embodiment after the recording medium is discharged. The partial top view of the ink mist collection | recovery means which concerns on 1st Embodiment Vertical section of ink mist collecting means according to the second embodiment Flow chart of operation of recording device

Embodiments of the present invention will be specifically described below with reference to the drawings. Note that the same reference numerals denote the same or corresponding parts throughout the drawings.
[First Embodiment]
FIG. 1 is a perspective view of an ink jet recording apparatus. FIG. 2 is a longitudinal sectional view of the ink jet recording apparatus. In FIG. 1, the right side is the front of the apparatus and the left side is the rear of the apparatus. In FIG. 2, the left side is the front of the apparatus and the right side is the rear of the apparatus. The carriage 12 on which the recording head 11 is mounted is supported so as to be movable along a guide shaft 14 and a guide rail 15 disposed on the chassis 13, and is driven to reciprocate via a belt 16 by a carriage motor (not shown).

  A platen 17 for supporting a sheet-like recording medium (hereinafter referred to as a sheet) P such as recording paper is disposed at a position facing the recording head 11. An ink tank 22 for supplying ink to the recording head 11 is mounted on the carriage 12. This recording apparatus is an ink jet recording apparatus that performs recording by discharging ink from the recording head 11 to the sheet P. The recording head 11 selectively discharges ink from a plurality of discharge ports formed on the discharge port surface facing the sheet P based on the image information. The recording head 11, the carriage 12, and the like constitute an ink jet type image forming unit 80. Such an inkjet method can use various methods such as a method using a heating element, a method using a piezo element, a method using an electrostatic element, and a method using a MEMS element.

  On the upstream side of conveyance of the platen 17, a pair of conveyance rollers including a conveyance roller 18 that is a driving rotator and a pinch roller 19 that is a driven rotator is disposed. The pinch roller 19 is rotatably supported at the tip of a swingable pinch roller holder 35 and is urged toward the transport roller 18 by a pinch roller spring (not shown). The paper discharge unit 50 downstream of the platen 17 is provided with a paper discharge roller pair including a paper discharge roller 21 that is a driving rotary body and a spur 53 that is a driven rotary body. The transport roller 18 and the paper discharge roller 21 are rotationally driven in synchronization.

  The sheets P stacked on the pressure plate 25 and the paper feed tray 26 are separated one by one due to the difference in frictional force between the paper feed roller 27 and the separation roller 28, and fed from the paper feed unit 23 toward the image forming unit 80. The The leading edge of the fed sheet P is brought into contact with the nip of the conveying roller pairs 18 and 19 that are stopped, whereby leading edge alignment (registration removal) is performed. Next, the sheet P is conveyed to the recording start position on the platen 17 by rotating the conveyance roller 18. Then, recording for one line in which ink is ejected from the recording head 11 in synchronization with the movement of the carriage 12 (main scanning) and paper feeding at a predetermined pitch by the transport roller 18 are alternately repeated, thereby making it equivalent to one sheet. Image recording is performed. The recorded sheet P is discharged onto the discharge tray 51 outside the apparatus main body by the rotation of the discharge roller 21.

  A recovery unit 40 is disposed at a predetermined position (usually the home position of the recording head 11) that is outside the recording area (or the sheet passing area) in the movement range of the carriage 12. The recovery unit 40 is a device for maintaining and recovering the ink ejection performance of the recording head 11. The recovery unit 40 is provided with, for example, capping means, wiping means, suction means, and the like. The capping unit 41 includes a cap for covering the ejection port of the recording head 11. The wiping means 43 includes a wiper for wiping the ink ejection surface of the recording head 11. The suction means 42 includes a suction pump connected to the cap in order to forcibly suck ink from the ejection port of the recording head 11 or to collect unnecessary ink collected in the cap. In addition, a recovery operation by ink ejection (empty ejection) that is not intended for recording from the recording head 11 toward the cap is also performed. The recovery unit 40 is provided with a recovery motor 47 for driving operation mechanisms such as the capping unit 41, the suction unit 42, and the wiping unit 43.

  The recording apparatus is provided with control means 70 including a controller having a CPU, a memory, an I / O circuit, and the like. The control means 70 controls the operation of the drive motor and various devices according to a control program stored in advance in the internal memory. Thus, the feeding and conveying operations of the recording medium (sheet P) are controlled, and the recording head 11 is controlled based on the image information, thereby recording an image on the recording medium. The control unit 70 controls the operation of the recovery unit 40, controls the operation of an ink mist collecting unit 85 described later, and controls the operation and timing of the entire apparatus.

  In the above ink jet recording apparatus, when ink is ejected for the purpose of recording or the like, a mist-like ink mist composed of minute droplets may be generated along with the main droplets (main droplets) ejected. The ink mist moves at a low speed, and most of the ink mist floats in the air in the recording apparatus without landing on the recording medium. In addition, when the main droplets land on the recording medium, the fine droplets that bounce off the recording medium may float as ink mist. Therefore, in the present embodiment, an ink mist collecting means 85 for guiding and collecting such ink mist to a predetermined position is provided.

  FIG. 3 is a longitudinal sectional view showing a state in which the ink mist collecting means 85 is recording. FIG. 4 is a longitudinal sectional view showing a state after the sheet is discharged by the ink mist collecting means 85. FIG. 5 is a partial plan view of the ink mist collecting means 85. In the present embodiment, an ink mist collecting unit 85 is configured in the vicinity of the paper discharge unit 50 by using a spur 53 that is a conveying rotating body. At a plurality of positions at predetermined intervals along the length direction of the paper discharge roller 21, spurs 53 that are pressed by the paper discharge roller 21 to apply a conveying force are arranged. A spur stay 57 formed of sheet metal or the like is fixed to the paper discharge unit 50. A spur holder 56 is attached to the spur stay 57. Each spur 53 is rotatably supported at the tip end portion of the spur holder 56 via a spur spring 58 that is a support shaft. Each spur 53 is pressed against the paper discharge roller 21 by the urging force of each spur spring 58.

  The spur 53 constitutes one of the transport rotators together with the transport roller 18, the pinch roller 19, the paper discharge roller 21, and the like. In the present embodiment, the spur 53 is disposed on the recording head 11 side (the upper side in the drawing) with respect to the recording surface of the sheet P supported on the platen 17. A fin portion 54 is provided on the side surface of each spur 53. The illustrated fin portion 54 includes a plurality of blades arranged at a predetermined pitch on the circumference of the side surface of the spur 53. The fin portion 54 may be provided only on one side surface of the spur 53, or may be provided on both side surfaces.

  The paper discharge unit 50 is provided with a mist collection duct 55 for collecting the ink mist so as to cover each spur 53. In the illustrated example, a plurality of mist collection ducts 55 are arranged corresponding to each of the plurality of spurs 53. An intake port 55 a is formed at the end of each mist collection duct 55 on the spur 53 side so as to surround the upper half of the corresponding spur 53. An exhaust port 55 b is formed at the other end portion (end portion on the upstream side of the conveyance) of each mist collection duct 55. The exhaust port 55 b opens downward from an opening 57 a formed in the spur stay 57 and an opening 56 a formed in the spur holder 56.

  When the sheet P is transported in the direction of the arrow 61 by the forward rotation of the transport roller pairs 18 and 19 and the discharge roller pairs 21 and 53, a spur 53 that is a transport rotator disposed on the recording head 11 side is shown in FIG. Rotate clockwise inside. At this time, the fin portion 54 simultaneously rotates clockwise, and the rotation of the fin portion 54 generates an air flow from the intake port 55a to the exhaust port 55b through the mist recovery duct 55 as indicated by an arrow 62. The ink mist floating in the recording apparatus is sucked into the duct 55 from the intake port 55a by this air flow, guided to a predetermined position through the mist recovery duct 55, discharged from the exhaust port 55b, and accumulated in the recovery unit. Collected.

  As shown in FIG. 3, when recording is performed by ejecting ink from the recording head 11 onto the conveyed sheet P, the ink mist sucked from the intake port 55a is recorded on the sheet P from the exhaust port 55b together with air. It is discharged above the surface. That is, the floating ink mist is guided above the sheet P supported by the platen 17 by the airflow generated through the mist collection duct 55. In this case, the amount of ink mist discharged per unit time from the exhaust port 55 b is proportional to the amount of airflow in the mist collection duct 55 indicated by the arrow 62. However, when recording on the sheet P, since the rotational speed of the spur 53 is not high, the amount of ink mist discharged toward the sheet P from the exhaust port 55b by the airflow is small, which affects the recorded image. There is no effect.

  Next, further configuration and operation of the ink mist collecting means 85 will be described with reference to FIG. FIG. 4 shows, for example, the state of the ink mist collecting unit 85 after the sheet P is discharged. After the carriage 12 is moved from the recording area to the home position, the sheet P is discharged by the discharge roller pairs 21 and 53. After the sheet P is discharged, the sheet P does not exist in the range of the platen 17 and the paper discharge unit 50. At this time, when the paper discharge roller pair 21 and 53 are rotated in the forward direction, the spur 53 and the fin portion 54 are rotated in the clockwise direction in the drawing, whereby the mist collecting duct 55 is exhausted from the intake port 55a as indicated by the arrow 62. An air flow toward the mouth 55b is generated.

  Therefore, in the present embodiment, a plurality of ribs 33 are provided on the upper surface (conveying surface) of the platen 17 at positions at predetermined intervals in the width direction of the sheet P in parallel with the conveying direction. Between each rib 33, the recessed part 33b which consists of a flat surface is formed. The upper surface 33 a of each rib 33 forms a support surface that contacts the back surface of the sheet P. Therefore, as shown in FIG. 5, the exhaust ports 55b of the mist collection ducts 55 are not arranged immediately above the ribs 33, and the concave portions 33b of the platen 17 are arranged directly below the exhaust ports 55b. . Accordingly, the upper surface 33a of each rib 33 is not contaminated by ink mist discharged from the exhaust port 55b. For this reason, the sheet P conveyed on the rib 33 is not contaminated with ink.

  In the state where the recording is not performed in FIG. 4, the ink mist floating in the recording apparatus is not affected by the movement of the carriage 12. Further, the sheet P does not exist in the range of the platen 17 and the paper discharge unit 50. Therefore, compared to during recording as shown in FIG. 3, even if a large amount of ink mist is sucked from the intake port 55a of the mist collecting duct 55 and a large amount of ink mist is discharged from the exhaust port 55b, it is directly applied to the recorded image. Will not be affected.

  Therefore, the platen 17 incorporates an ink absorber 34 for absorbing and stacking the discharged ink mist. The ink absorber 34 is formed of a material excellent in ink absorbability, such as a fiber material such as paper or nonwoven fabric, or a porous body. The ink absorber 34 is incorporated in a region where the ribs 33 of the platen 17 are notched so that the upper surface thereof is substantially at the same level as the surface of the recess 33b.

  In the state of FIG. 4, the ink mist discharged from the exhaust port 55b of the mist collecting duct 55 is sprayed one after another to the concave portion 33b of the platen 17, and becomes ink liquid on the bottom surface of the concave portion 33b. Therefore, the bottom surface of each recess 33b is inclined. That is, the bottom surface of each recess 33 b is formed to have a gentle downward slope toward the top surface of the ink absorber 34 incorporated in the platen 17 or the vicinity thereof. Accordingly, the ink liquid that has been sprayed onto the recess 33b and turned into a liquid form from the ink mist flows along the recess 33b as indicated by the arrow 63, is guided to the ink absorber 34, and is accumulated in the ink absorber 34. Collected.

  Therefore, when recording is not being performed, by rotating the discharge roller pair 21 and 53 at a higher speed than during recording and by rotating the fin portion 54 at a higher speed, a larger amount of ink mist can be collected. Therefore, a more efficient ink mist collecting operation can be performed. For example, an ink mist collection mode is provided in which the spur 53 is rotated for a predetermined time after the sheet P is discharged from the apparatus main body and the ink mist is collected. Then, the rotational speed of the spur 53 in the ink mist collection mode is set larger than the rotational speed when the sheet P is conveyed for recording. By providing such an ink mist collection mode, a more efficient ink mist collection operation can be performed. According to the embodiment described above, an ink jet recording apparatus that can collect ink mist floating in the recording apparatus with a simple configuration that does not use a suction fan or the like and can prevent problems due to ink mist is provided.

[Second Embodiment]
FIG. 6 is a longitudinal sectional view showing the ink mist collecting means according to the second embodiment. In this embodiment, a part of the first embodiment is changed. In this embodiment, the exhaust port 55 b of the mist collecting duct 55 is disposed on the spur stay 57, and an ink absorber 59 for absorbing ink mist discharged from the exhaust port 55 b is disposed on the upper surface of the spur stay 57. It is arranged. For this reason, the spur stay 57 and the spur holder 56 are not provided with an opening for directing the exhaust port 55b downward as in the first embodiment. The ink absorber 59 is formed of a member having ink absorbability such as paper, a porous material, and a nonwoven fabric. Further, the ink absorber 59 of the present embodiment can be formed by a sheet-like or plate-like member and joined to the spur stay 57. As described above, in this embodiment, the ink mist guided through the mist collection duct 55 is collected and collected on the ink absorber 59 disposed on the recording head 11 side with respect to the sheet P supported by the platen 17. Has been.

  In the present embodiment, the configuration other than the above is the same as that of the first embodiment. According to such a configuration, the ink mist discharged from the exhaust port 55b is sprayed onto the sheet P even when the recording head 11 is ejecting and recording the ink on the conveyed sheet P. Absent. Therefore, even when the sheet P exists in the range of the platen 17 and the paper discharge unit 50, the influence of ink mist on the recorded image can be eliminated as in the case where the sheet P does not exist. Further, the ink mist can be efficiently collected by sucking the ink mist from both sides with the direction of the blades of the fin portion 54 provided on both sides of the spur 53 being opposite to each other on each side.

  FIG. 7 is a flowchart showing the operation of the recording apparatus according to each of the above embodiments. In FIG. 7, when the power of the recording apparatus is turned on (step S1), an initial operation such as confirming that the carriage is at the home position is first performed by the detecting means (step S2). Next, an online state is entered by an input from the operation / display unit or the like (step S3). When the online state is entered, it enters an input waiting state where recording data from a computer or the like can be input via the interface unit. When recording data is input (step S 4), the sheet P is fed by the rotation of the paper feed roller 27, and the conveyance roller 18 is further rotated to convey the sheet P to the image forming unit 80 on the platen 17. (Step S5).

  When it is confirmed that the sheet P has reached the recording start position on the platen 17 (step S6), the conveyance is stopped and the carriage 12 on which the recording head 11 is mounted is driven in a direction crossing the conveyance direction (step S7). ) In synchronization with the movement of the carriage 12, ink is ejected from the recording head 11 to the sheet P to form an image (step S8). When the recording for one line is completed, the driving of the carriage 12 is stopped (step S9). Then, the process returns to step S4 to temporarily enter a recording data waiting state. If there is next recording data, the operations of steps S4 to S9 are repeated. In this way, an image is formed on the entire sheet P by alternately repeating recording for one line and conveying the sheet P at a predetermined pitch. In this recording operation, the spur 53, which is a conveying rotator, rotates at a predetermined speed for paper feeding. Therefore, when the fin portion 54 rotates at the same speed, the ink mist floating in the recording apparatus is sucked from the air inlet 55a of the mist collecting duct 55, and discharged from the air outlet 55b when guided to a predetermined position through the duct 55. be able to.

  When the recording of the sheet P is completed and the input of all the recording data is completed, the carriage 12 is moved to the home position and stopped (step S10). The recorded sheet P is discharged out of the apparatus main body by the rotation of the transport roller 18 and the paper discharge roller 21 (step S11). After the sheet P is discharged, ON / OFF control of the collection operation is performed by executing the ink mist collection mode (step S12). The ON / OFF of the ink mist collection mode and the rotation speed and operation time of the fin portion 54 are controlled according to, for example, the recording operation in step S4 to step S9 or the amount of ink mist generated in one job of the recording operation. Specifically, for example, the CPU of the control unit 70 calculates the ink mist generation amount based on the total number of dots or the number of recordings that have been ejected onto the sheet P during a predetermined period (for example, during the recording operation). The ink mist collection mode is controlled based on the result.

  When the ON control is performed in the ink mist collection mode, the pair of paper discharge rollers 21 and 53 are rotated, and the air flow in the mist collection duct 55 is caused by the rotation of the fin portion 54 of the spur 53 that is a transport rotating body on the recording head 11 side. Is generated. Thereby, the ink mist sucked from the intake port 55a is guided to a predetermined position through the duct 55 and discharged from the exhaust port 55b, that is, the ink mist collecting operation is performed (step S13). The operation time of the collecting operation and the rotation speed of the fin 54 are controlled based on the calculation result of the ink mist generation amount by the recording operation described above. A collection operation for a predetermined time is performed (step S14), and the series of ink mist collection modes is terminated. Then, the recording data waiting state for the next recording operation is entered, and when there is recording data, the recording operation in steps S4 to S14 is repeated.

  In this ink mist collection mode, since there is no sheet P to be conveyed, the rotation speed of the pair of discharge rollers 21 and 53 is set to a higher speed than the rotation speed when the sheet P is conveyed. Efficiency can be increased. At this time, as the amount of ink mist generated increases, the rotational speed is increased to increase the air velocity in the mist collection duct 55, whereby the ink mist can be efficiently collected in a short time.

  In the above-described embodiment, the fin portion 54 and the mist collection duct 55 are provided using the spur 53 of the pair of discharge rollers. However, if the rotation body for transport on the recording head 11 side is used, other rotations are possible. You may use your body. For example, the spur 53 is used by providing the fin portion 54 on the side surface of the pinch roller 19 that is the rotating body on the recording head side of the conveyance roller pair and arranging the mist collecting duct 55 so as to cover the pinch roller 19. The same effect as the case can be obtained. Further, when the transport roller 18 and the paper discharge roller 21 which are driving rollers are arranged on the recording head 11 side, the structure may be such that the fin portion 54 and the mist collection duct 55 are provided using these rotating bodies. This also provides the same effect. That is, the ink mist collecting unit 85 according to the present embodiment can be configured using various rotating bodies as long as it is a rotating body disposed on the recording head 11 side from the sheet P.

  Furthermore, the fin part 54 provided in the rotation body for conveyance, such as the spur 53, can also be provided in various modes. For example, the structure which provides the fin part 54 in the one side surface of a rotary body may be sufficient, and the structure which provides the fin part 54 in the side surface of the both sides of a rotary body may be sufficient. Moreover, the direction of the blade | wing which comprises the fin part 54, a number, arrangement | positioning, etc. can be implemented in various aspects. For example, by providing fin portions 54 made of blades in the same direction on both surfaces of the rotating body, it is possible to increase the suction force and increase the ink mist collection efficiency. Further, by generating the airflow in the direction of the arrow 62 not only in the normal rotation but also in the reverse rotation of the fin portion 54, it becomes possible to perform more effective ink mist collection. Alternatively, the airflow indicated by the arrow 62 may be generated only when the direction of the blades of the fin portion 54 provided on one or both sides of the rotating body is reversely rotated.

  The mist collecting duct 55 may also be formed integrally with the spur holder 56 when the spur 53 is provided with the fin portion 54, and integrated with the pinch roller holder 35 when the pinch roller 19 is provided with the fin portion 54. You may form in. In the first embodiment, the concave portion 33b of the platen 17 is disposed immediately below the exhaust port 55b of the mist collecting duct 55. This is because a part of the ink absorber 34 incorporated in the platen 17 is connected to the exhaust port. It may be configured to extend to just below 55b. According to such a configuration, it becomes possible to collect more ink mist.

  In the embodiment described above, a serial type recording apparatus using a carriage mounted with a recording head and reciprocally moved is taken as an example. The present invention can be similarly applied to recording apparatuses of other scanning methods such as a line type that records only by sub-scanning in the conveyance direction of the recording medium. The recording medium may be made of various materials such as paper, plastic sheet, photographic paper, cloth, etc. as long as image formation is possible.

11 Recording Head 17 Platen 34 Ink Absorber 53 Spur (Rotating Body for Transport)
54 Fin section 55 Mist collection duct 55a Intake port 55b Exhaust port 70 Control means 85 Ink mist collection means

Claims (10)

In a recording apparatus that performs recording by discharging ink from a recording head to a recording medium,
A fin portion provided on a conveying rotator disposed on the recording head side with respect to the recording medium, and a mist collecting duct that covers the conveying rotator,
A recording apparatus, wherein floating ink mist is guided to a predetermined position by an air flow generated through the mist collecting duct by rotation of the fin portion.   The recording apparatus according to claim 1, wherein the conveying rotator is a spur pressed by a paper discharge roller.   The recording apparatus according to claim 1, wherein the ink mist is guided above a recording medium supported by the platen by an air flow generated through the mist collecting duct.   4. The recording apparatus according to claim 1, wherein the ink mist guided by the mist collecting duct is collected by an ink absorber incorporated in the platen.   The recording apparatus according to claim 1, wherein the ink mist guided by the mist recovery duct is recovered by an ink absorber disposed on a recording head side from a recording medium supported by the platen.   6. The ink mist recovery mode according to claim 1, further comprising: an ink mist recovery mode for recovering the ink mist by rotating the transport rotator for a predetermined time after the recording medium is discharged from the apparatus main body. Recording device.   The recording apparatus according to claim 6, wherein a rotation speed of the transport rotator in the ink mist recovery mode is higher than a rotation speed when a recording medium is transported for recording.   8. The recording apparatus according to claim 6, wherein the ink mist recovery mode is ON / OFF controlled according to the amount of ink mist generated.   The recording apparatus according to claim 6, wherein an operation time in the ink mist collecting mode is controlled according to an amount of the ink mist generated.   The recording apparatus according to claim 8 or 9, wherein the amount of ink mist generated is calculated based on the number of recorded sheets or the total number of dots in a predetermined period.

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