JP2015006805A - Transport device and recording apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording apparatus in which vertical installation and horizontal installation are freely selected and which is capable of accurately feeding a sheet when recording an image.SOLUTION: A recording apparatus, in which vertical installation in which a feed position of a sheet P is a vertically upright position when printing, and horizontal installation in which the feed position is a horizontally laid position, can be freely selected, includes: a feeding roller 42 for feeding the sheet P by a predetermined feed amount along a feed route R; a printing unit 3 for recording an image on the sheet P being fed in synchronization with driving of the feeding roller 42; a position detecting mechanism 6 for detecting whether the installation position is the vertical installation or the horizontal installation; and feed amount correcting means for correcting the feed amount depending on detection result of the position detecting mechanism 6.

Description

  The present invention relates to a recording apparatus that can freely perform a vertical installation in which a feeding posture of a recording medium during image recording is an upright posture and a horizontal installation in which the feeding posture is a horizontal posture.

  Conventionally, as a recording apparatus, a print head supported by a carriage, a platen facing the print head, a paper feed roller that is disposed on the upstream side of the recording head and feeds paper (recording medium) to the platen, and downstream of the recording head And a paper discharge roller for discharging paper from the platen is known (see Patent Document 1). In this recording apparatus, paper is conveyed by a paper feed roller and a paper discharge roller, and printing is performed on the paper by driving the recording head while reciprocating in a direction orthogonal to the paper feed direction (main scanning direction). .

Japanese Patent Laid-Open No. 2002-19204

By the way, the recording apparatus described above is a horizontal installation apparatus in which the paper feeding posture during printing is a horizontal orientation, but in order to reduce the installation area, in addition to the horizontal installation, the feeding posture stands upright. It is required that the vertical installation, which is the posture, be freely set.
However, in a recording apparatus that can be installed vertically or horizontally, there is a problem in that the direction of gravity that acts on the paper during paper feeding differs depending on the orientation of the apparatus, resulting in a difference in the amount of feed by the rollers. For example, when the paper is fed upward in a standing posture in the vertical installation, a minute slip is likely to occur between the paper and the roller due to the weight of the paper. For this reason, the feed amount tends to be lower than in the horizontal installation. As described above, when a difference occurs in the feed amount by the roller, the paper cannot be accurately fed, so that an appropriate printing process cannot be performed on the paper, and the printing result varies depending on the apparatus posture. Arise.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a recording apparatus that can accurately feed paper during image recording in a recording apparatus that can be installed vertically or horizontally.

  The recording apparatus of the present invention is a recording apparatus that can be freely installed in a vertical installation in which the feeding posture of the recording medium at the time of image recording is an upright posture and in a horizontal installation in which the feeding posture is in a horizontal position, A medium feeding means for feeding a recording medium at a predetermined feed amount along the feeding path, an image recording means for recording an image on the recording medium to be sent in synchronization with the driving of the medium feeding means, and the installation posture is set vertically. It is characterized by comprising an installation posture detecting means for detecting whether it is installed or installed horizontally, and a feed amount correcting means for correcting the feed amount according to the detection result by the installation posture detecting means. .

  According to this configuration, by correcting the design target feed amount (predetermined feed amount) according to the installation posture, the difference from the actual feed amount (actually sent amount) by the installation posture is substantially zero. can do. For example, if the actual feed amount is reduced when installed vertically, the reduction can be offset by performing a correction to increase the target feed amount at the time of installing vertically. In this way, paper feeding at the time of image recording can be performed accurately, so that appropriate image recording processing can be performed on paper. Further, the recording result does not differ depending on the apparatus posture. That is, it is possible to maintain good print quality regardless of whether it is placed horizontally or vertically. The configuration may be such that the recording medium is sent upward when installed vertically, or the recording medium may be sent downward when installed vertically.

  In the recording apparatus, it is preferable that the feed amount correction unit corrects the feed amount based on a control table storing correction data for each installation posture.

  According to this configuration, since the feed amount is corrected based on the correction data for each installation posture stored in advance, the calculation process can be omitted compared to calculating the correction value at the time of correction.

  In this case, the correction data preferably includes medium-specific correction data for each type of recording medium.

Since the weight of the recording medium varies greatly depending on the type of the recording medium, the feed amount difference also varies greatly.
On the other hand, according to the above configuration, correction data that takes into account the type of the recording medium is used, so that even if the type of the recording medium is changed, paper feeding can be performed accurately.

  Further, a medium position detecting means for detecting a leading edge position and / or a trailing edge position of the recording medium in the feeding path is further provided, and the correction data includes a leading edge position and / or a plurality of divided sections obtained by dividing the feeding path. It is preferable that section correction data for each divided section to which the rear end position belongs is included.

Since the weight (load) of the recording medium applied to the medium feeding means varies greatly depending on the position of the recording medium on the feeding path, the feeding amount difference also varies greatly.
On the other hand, according to the above configuration, correction data that takes into account the leading edge position and / or trailing edge position of the recording medium is used, so that even if the position of the recording medium changes, paper feeding can be performed accurately. .

  In the recording apparatus, the feed amount correcting means is based on the relational expression showing the relationship between the actual feed amount per unit feed amount in the vertical installation and the actual feed amount per unit feed amount in the horizontal installation. It is preferable to correct the feed amount.

  According to this configuration, since the correction value is calculated using the relational expression and the feed amount is corrected at the time of correction, the recording capacity can be reduced compared to storing correction data in advance.

  In this case, the relational expression preferably includes the weight for each type of recording medium as a variable.

  According to the above configuration, since the relational expression taking into account the weight for each type of recording medium is used, even if the type of the recording medium is changed, paper feeding can be performed accurately. Note that the configuration may be such that the weight of each recording medium is detected and the weight of each recording medium is included as a variable in the relational expression.

  On the other hand, it is preferable that the image recording unit further includes an ejection data correction unit that records an image by an inkjet method and corrects the ejection data based on a detection result by the installation posture detection unit.

In an ink jet recording process, ink droplets are ejected and landed to form an image, and thus are greatly affected by the direction of gravity. For example, at the time of vertical installation, ink droplets are displaced from the target position due to the influence of gravity (so-called landing displacement).
On the other hand, according to said structure, the landing deviation by an installation attitude | position can be canceled by correct | amending discharge data according to an installation attitude | position. Further, the recording result does not differ depending on the apparatus posture. Even when an image is recorded by another method, the configuration is applied if the recording process changes due to the influence of the installation posture.

  In this case, the correction data for correcting the ejection data preferably includes medium-specific correction data for each type of recording medium.

  According to this configuration, since the correction data taking into account the type of the recording medium is used, even if the type of the recording medium is changed, an appropriate recording process can be performed.

  Further, the installation posture detecting means has a weight portion disposed at one position in the circumferential direction and a detection mark disposed at one position in the circumferential direction, and is disposed so as to be freely rotatable. It is preferable to have a body and a vertical installation detection sensor that is disposed so as to face the detection mark of the rotating body rotated by the weight of the weight portion when installed vertically and detects the presence or absence of the detection mark.

  According to this configuration, since the detection mark faces the vertical installation detection sensor at the time of vertical installation, the vertical installation is detected. On the other hand, at the time of horizontal installation, since the detection mark does not face the vertical installation detection sensor, it is detected that the installation is horizontal installation. As described above, the installation posture can be detected with a simple configuration as compared with the case of using a general gyro (three-axis acceleration sensor).

1 is an external perspective view showing a recording apparatus according to an embodiment. FIG. 3 is a side sectional view showing the internal structure of the recording apparatus. (A) is the perspective view which showed the attitude | position detection mechanism in the recording device at the time of vertical installation. (B) is the perspective view which showed the attitude | position detection mechanism in the recording device at the time of horizontal installation. FIG. 3 is a control block diagram illustrating a control structure of the recording apparatus. It is the figure which showed the actual measurement data of the difference of the actual feed amount per unit feed amount of vertical installation and horizontal installation.

  Hereinafter, a recording apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. This recording apparatus is a recording apparatus that can be installed vertically or horizontally. Vertical installation is an installation posture that is longer in the height (Z-axis direction) than the width (Y-axis direction). Printing is performed while transporting paper (recording medium) held in an upright position, and then ejected. This is an installation posture in which used paper is stacked and held in a standing posture. On the other hand, horizontal installation refers to an installation posture in which the paper is laid down on the YZ plane from the state of vertical installation and the width (Y-axis direction) is longer than the height (Z-axis direction). This is an installation posture in which printing is performed while being conveyed, and the discharged printed sheets are laid down and held in a stacked posture. In addition, as shown in each drawing, the X axis (left and right) direction, the Y axis (front and rear) direction, and the Z axis (up and down) direction are defined and described below. Moreover, in the following description, the case where it installs by vertical installation fundamentally is demonstrated.

  FIG. 1 is an external perspective view showing the recording apparatus 1. As shown in FIG. 1, the external appearance of the recording apparatus 1 is constituted by a casing 2 that is a thin box-like body that is formed with dimensions in the Z-axis direction larger than those in the X-axis and Y-axis directions. An operation panel 21 on which operation buttons and the like are arranged, a cable terminal 22 to which a cable for connecting to a PC and the like, and a plurality of ink cartridges (not shown) are detachably mounted on the upper surface of the housing 2. And a cartridge cover 23 for opening and closing a cartridge mounting portion (not shown). A paper discharge port cover 25 that opens and closes a paper discharge port 24 (see FIG. 2) for discharging the printed paper P is provided on the upper surface of the housing 2. The paper discharge port cover 25 is opened and closed by the user, but is automatically opened by an opening / closing mechanism (not shown) even when printing is executed in a closed state. Further, a cassette mounting portion 26 for detachably mounting a paper cassette 5 described later is widely provided on the front surface of the housing 2.

  Here, the internal structure of the recording apparatus 1 will be described in detail with reference to FIG. FIG. 2 is a side sectional view showing the internal structure of the recording apparatus 1. As shown in FIG. 2, the recording apparatus 1 has an internal structure in which the recording apparatus 1 is detachably mounted on the cassette mounting portion 26, and stores a sheet of paper P in an upright state, and the recording apparatus 1. A conveying unit 4 that feeds the accommodated paper P along a feed path R that reverses and feeds the paper P in the lower part, and is disposed at an upper and lower intermediate position of the recording apparatus 1 facing the feed path R. A printing unit (image recording unit) 3 that prints (records) an image on the paper P by an inkjet method, and a device frame (not shown) that supports the transport unit 4 and the printing unit 3 are provided. The recording apparatus 1 also includes an attitude detection mechanism (installation attitude detection means) 6 (see FIG. 3) that detects the installation attitude of the apparatus, and a control unit 7 (see FIG. 4) that controls each part. Although details will be described later, the control unit 7 performs drive control of each unit in accordance with the installation posture detected by the posture detection mechanism 6.

  The printing unit 3 is supported by the apparatus frame, and is supported by the carriage guide shaft 34 and the carriage guide plate 36 that extend to the full width in the X-axis direction, and reciprocally supported by the carriage guide shaft 34 and the carriage guide plate 36. The carriage unit 30 and a carriage moving mechanism (not shown) for reciprocating the carriage unit 30 along the carriage guide shaft 34 and the carriage guide plate 36 are provided. The carriage guide shaft 34 supports the lower end of the carriage unit 30, and the carriage guide plate 36 supports the upper end of the carriage unit 30 against a force to rotate about the carriage guide shaft 34. That is, the carriage unit 30 is held in an inclined posture by the carriage guide shaft 34 and the carriage guide plate 36.

  The carriage unit 30 is connected from above to the box-shaped carriage 31 supported reciprocally on the carriage guide shaft 34 and the carriage guide plate 36, the inkjet head 32 mounted on the carriage 31, and the inkjet head 32. A connection adapter (not shown) connected to the ink cartridge via the ink tube. The ink jet head 32 has a nozzle surface 32a that faces the paper P with a predetermined gap, and a plurality of nozzle rows (not shown) that eject ink droplets of a plurality of colors are formed on the nozzle surface 32a. In addition, the inkjet head 32 is arrange | positioned sideways, and the some nozzle row is extended in the height direction.

  The present embodiment is a so-called off-carriage type in which the ink cartridge is provided independently of the carriage 31, but may be a so-called on-carriage type in which the ink cartridge is mounted on the carriage 31. In this embodiment, the carriage 31 is a so-called serial printer that performs printing while moving in the X-axis direction. However, a fixed inkjet head 32 that covers the width of the paper P may be used. Furthermore, the recording method is not limited to the ink jet method, and other recording methods may be used.

  The paper cassette 5 is provided on a cassette main body 51 for storing unprinted (unrecorded) paper P in an upright position, and on the outer surface (inside the apparatus) of the cassette main body 51, and the printed (recorded) paper P is raised. And a paper discharge holding unit 52 that holds the holding surface 61 in a posture. That is, the unprinted paper P is supplied from the cassette body 51 and the printed paper P is discharged to the paper discharge holding unit 52. Then, by removing the paper cassette 5 from the apparatus main body, the held printed paper P can be taken out together with the cassette main body 51. Further, by removing the paper cassette 5, the inside of the recording apparatus 1 can be exposed, which contributes to the removal of the paper P when jamming occurs. Although not shown, the paper cassette 5 is configured to be slidable in the Z-axis direction with respect to the housing 2, and the attachment / detachment operation is performed by sliding the paper cassette 5.

  The cassette main body 51 is flush with the front surface of the housing 2 when mounted (see FIG. 1), and the cassette housing portion 53 forming the appearance of the recording apparatus 1 and the cassette housing portion 53 side as a receiving surface, The main body tray 54 formed in a tray shape, the upper cover 55 that faces the upper portion of the main body tray 54 and opens and closes the paper storage space for storing the paper P, and the lower portion of the main body tray 54 are accommodated in the paper storage space. And a movable tray 59 that swings the leading end of the sheet P.

  The movable tray 59 is provided below the main body tray 54 on the downstream side in the sheet feeding direction when the sheet cassette 5 is mounted, and functions as a so-called hopper. The movable tray 59 is rotatable about a pair of left and right swinging fulcrums 59a provided at a substantially central portion in the vertical direction of the main body tray 54, and is swung by a driving mechanism (not shown). . Thereby, the front end of the accommodated paper P can be brought into a state in which it is pressed against a later-described feeding roller 41 (see FIG. 2) and a state in which it is separated (not shown).

  The paper discharge holding unit 52 is provided on the holding surface 61, a holding surface 61 constituted by the outer surface (inside the apparatus) of the upper cover 55, a receiving unit 62 that receives the lower end of the discharged paper P, and the holding surface 61. And a holder 63 that holds the paper P in an upright posture.

  The transport unit 4 faces the leading end of the movable tray 59 and rolls out and pulls out the stored paper P, and also feeds the paper P in a curved direction and feeds it upward, and a feed roller 41. , A reverse guide member 45 and an auxiliary driven roller 46 that guide the reverse feed, a transport roller (medium feed means) 42 that feeds the paper P from the feed roller 41 to the printing unit 3, and a downstream side of the transport roller 42 The guide member 33 that faces the printing unit 3, the spur-shaped guide roller 43 that faces the downstream end of the guide member 33 and corrects the warp of the paper P, and the downstream side of the guide roller 43 And a paper discharge roller 44 for discharging the paper P to the paper discharge holding unit 52. Further, the transport unit 4 includes a front end detection sensor that detects the front end and tail end of the paper P, an encoder of the transport drive roller 42a, and the like. Part (medium position detecting means) 47 (see FIG. 4).

  The feeding roller 41 is constituted by a driving roller, and conveys the paper P drawn from the cassette body 51 in an arc shape along the outer peripheral surface. The reverse guide member 45 is formed in a curved shape so as to face the outer peripheral surface of the feeding roller 41 and guides the paper P from the outside. The auxiliary driven roller 46 is composed of a free rotating roller, and is in contact with the feeding roller 41 with the paper P interposed therebetween to assist reverse feeding.

  The conveyance roller 42 includes a nip roller having a conveyance drive roller 42a on the front side and a conveyance driven roller 42b on the rear side that is in rolling contact with the conveyance drive roller 42a, and controls the feeding (sub-scanning) of the paper P. Functions as a main roller. Specifically, the conveyance drive roller 42a and the conveyance driven roller 42b rotate and feed the paper P while sandwiching the paper P, and feed the paper P onto the guide member 33. Further, along the feed path R, a predetermined feed amount (a target feed amount described later) ). When the recording apparatus 1 is installed vertically, the feeding posture of the paper P at the time of printing (image recording) is an upright standing posture. The posture becomes a horizontal posture.

  The guide member 33 constitutes a part of the feed path R and regulates (guides) a gap (paper gap) between the recording surface of the paper P and the inkjet head 32 to a predetermined gap (functions as a so-called platen). To do). In addition, the guide member 33 is formed with a recess for receiving ink ejected in a region off the edge of the paper P at the time of borderless printing at a position facing the inkjet head 32. In this recess, an ink absorbing material (not shown) for absorbing ink is provided. Further, a waste liquid tank (not shown) for storing the discarded ink is disposed below the guide member 33. Note that the guide member 33 is in a standing posture when the recording apparatus 1 is installed in the vertical position, and in a horizontal position when it is installed in the horizontal direction.

  The paper discharge roller 44 is constituted by a nip roller having a front paper discharge driving roller 44a and a rear paper discharge driven roller 44b, and functions as a tension roller for applying tension to the paper P on the guide member 33. To do. Note that the feeding roller 41, the transport driven roller 42b, the guide roller 43, and the paper discharge roller 44 (the paper discharge driving roller 44a and the paper discharge driven roller 44b) are each appropriately spaced in the width direction (X-axis direction) of the paper P. It is comprised by the some division | segmentation roller arrange | positioned by.

  The paper P drawn downward by the feed roller 41 is reversed upward by the feed roller 41, the reverse guide member 45, and the auxiliary driven roller 46, and is sent to the transport roller 42. Further, the paper P is nipped and conveyed between the conveyance rollers 42 and is sent to the printing unit 3. The paper P printed by the printing unit 3 is discharged to the paper discharge holding unit 52 of the paper cassette 5 through the guide roller 43 and the paper discharge roller 44.

  In the printing process, the printing unit 3 records an image on the fed paper P in synchronization with the driving of the transport roller 42. Specifically, the paper P is intermittently fed (sub-scanned) in the substantially Z-axis direction by the transport roller 42, and the carriage unit 30 is reciprocated in the X-axis direction by the carriage moving mechanism while driving the inkjet head 32. (Main scanning), an image is printed on the paper P.

  Next, the posture detection mechanism 6 will be described with reference to FIG. FIG. 3A is a perspective view showing the posture detection mechanism 6 in the recording apparatus 1 when installed vertically. FIG. 3B is a perspective view showing the posture detection mechanism 6 in the recording apparatus 1 in the horizontal installation. As shown in FIG. 3, the attitude detection mechanism 6 includes a YZ attitude detection unit 71 that detects an installation attitude in the YZ plane, and an XZ attitude detection unit 72 that detects an installation attitude in the XZ plane. Based on the detection result of the detection unit, it is detected whether the current installation posture (installation posture of the XYZ space) of the apparatus is vertical installation or horizontal installation.

  The YZ attitude detection unit 71 is rotatably disposed on the apparatus frame, and includes a first rotating body (rotating body) 81 that freely rotates in the YZ plane, and a first light that is disposed facing the first rotating body 81. A sensor (vertical installation detection sensor) 82. On the other hand, the XZ posture detection unit 72 is rotatably disposed on the apparatus frame, and a second rotating body 83 that freely rotates in the XZ plane, and a second photosensor 84 that is disposed facing the second rotating body 83. And.

  Each of the rotating bodies 81 and 83 includes a weight portion 91 disposed at one position (eccentric position) in the circumferential direction, and a detection mark 92 disposed at one position symmetrical to the weight portion 91 in the circumferential direction. ,have. Each detection mark 92 is formed by an opening hole. On the other hand, each of the optical sensors 82 and 84 is composed of a transmission type photo sensor (photo interrupter). When facing the detection mark 92, the light receiving element receives the light of the light emitting element and detects ON. ing. The optical sensors 82 and 84 are arranged so as to face the detection marks 92 of the rotating bodies 81 and 83 rotated by the weight of the weight portion 91 when installed vertically, and detect the presence or absence of the detection marks 92. The rotating bodies 81 and 83 are rotatable by the weight of the weight portion 91 and do not rotate due to the friction between the shafts of the rotating bodies 81 and 83 and the bearings when the installation posture is changed. So that it is supported.

  The posture detection mechanism 6 detects that the installation posture is vertical installation when both the light sensors 82 and 84 detect ON. On the other hand, when the first optical sensor 82 detects OFF and the second optical sensor 84 detects ON, the apparatus is placed sideways on the YZ plane from the vertical installation state. It detects that it is. The posture detection mechanism 6 transmits these detection results (information on whether the device posture is vertical installation or horizontal installation) to the control unit 7 as needed. When the second optical sensor 84 detects OFF, it may be configured to transmit an error signal to the control unit 7 because the posture is an abnormal posture lying on the XZ plane.

  Here, the controller 7 will be described with reference to FIG. FIG. 4 is a control block diagram showing the control structure of the recording apparatus 1. As shown in FIG. 4, the control unit 7 includes a paper type acquisition unit 101, a conveyance data generation unit 103, a conveyance data correction unit (feed amount correction unit) 104, a conveyance control unit 105, and a discharge data generation unit 106. A discharge data correction unit (discharge data correction unit) 107 and a discharge control unit 108. The paper type acquisition unit 101 acquires the type of paper P from information input by the user. The conveyance data generation unit 103 generates conveyance data including the target feed amount. The transport data correction unit 104 corrects the generated transport data. The conveyance control unit 105 controls the driving of the conveyance driving roller 42a based on the corrected conveyance data. The discharge data generation unit 106 generates discharge data including the discharge timing of each nozzle of the inkjet head 32. The discharge data correction unit 107 corrects the generated discharge data. The ejection control unit 108 controls the driving of the inkjet head 32 based on the corrected ejection data. The target feed amount is a designed target feed amount, and the conveyance data correction unit 104 corrects an error in the undesigned feed amount.

  The transport data correction unit 104 includes the installation posture detected by the posture detection mechanism 6, the leading edge position of the paper P acquired by the paper position acquisition unit 47, the type of the paper P acquired by the paper type acquisition unit 101, and FIG. Correction is performed based on the conveyance control table (control table) T1 obtained from the actual measurement data as shown. FIG. 5 shows an example of actual measurement data. The actual measurement data is data indicating the difference in the actual feed amount per unit feed amount for each paper P between the vertically placed installation and the horizontally placed installation. The sheet P is divided into sections “C”, “A1”, “A2”, “A”, “A3”, and “B” from the upstream side, and the amount of feed when each area passes the transport roller 42 The data shows the difference. Therefore, the conveyance control table T1 based on the actual measurement data stores correction data for each installation posture. The correction data for each installation posture is correction data for each type of paper P and for each divided section of the paper P ( Medium-specific correction data and section correction data). The transport data correction unit 104 extracts a correction value corresponding to the above condition from the transport control table T1, and corrects the transport data by adding or subtracting the target feed amount by the extracted correction value.

  The discharge data correction unit 107 is based on the installation posture detected by the posture detection mechanism 6, the type of the paper P acquired by the paper type acquisition unit 101, and the discharge control table T2 obtained from the actual measurement data (not shown). Then, the ejection data is corrected. Specifically, the actual measurement data is data indicating the amount of landing position deviation between the vertical installation and the horizontal installation (deviation amount of the landing position of the ejected ink), and the ejection control table T2 indicates the type of the paper P The correction data for each installation posture is stored based on the displacement amount of the landing position that varies depending on the ejection amount due to the ejection distance, the ejection distance depending on the thickness of the paper P, and the like. The correction data for each installation posture includes correction data (medium-specific correction data) for each type of paper P. A correction value corresponding to the paper type detected from the paper type acquisition unit 101 and the detected installation posture is extracted from the discharge control table T2, and the discharge data is corrected by the correction value. Since the discharge data is data having the discharge timing of each nozzle, the discharge data correction unit 107 corrects the discharge timing with respect to the landing deviation amount in the main scanning direction to obtain the landing deviation amount in the sub-scanning direction. On the other hand, the nozzle to discharge is changed.

  According to the above configuration, by correcting the design target feed amount (predetermined feed amount) according to the installation posture, the difference from the actual feed amount (actually sent amount) according to the installation posture is reduced. It can be almost zero. For this reason, the paper feed during printing can be performed accurately, so that an appropriate printing process can be performed on the paper P. In addition, the printing result does not differ depending on the apparatus posture. That is, it is possible to maintain good print quality regardless of whether it is placed horizontally or vertically.

  Further, since the feed amount is corrected based on the correction data for each installation posture stored in advance, the calculation process can be omitted compared to calculating the correction value at the time of correction.

  Furthermore, since correction data that takes into account the type of paper P is used, even if the type of paper P is changed, paper feeding can be performed accurately.

  Furthermore, since correction data that takes into account the leading edge position of the paper P is used, even if the position of the paper P changes, paper feeding can be performed accurately.

  Further, by correcting the discharge data according to the installation posture by the discharge data correction unit 107, it is possible to cancel the landing deviation due to the installation posture. Further, the recording result does not differ depending on the apparatus posture.

  Further, the posture detection mechanism 6 is constituted by the rotating bodies 81 and 83 and the optical sensors 82 and 84, so that the installation posture can be achieved with a simple configuration as compared with the case where a general gyro (three-axis acceleration sensor) is used. Can be detected.

  In the present embodiment, the correction value is extracted from the correction data (transport control table T1) stored in advance. However, the correction value may be calculated at the time of correction. Specifically, the conveyance data correction unit 104 determines the target based on the relational expression showing the relationship between the actual feed amount per unit feed amount in the vertical installation and the actual feed amount per unit feed amount in the horizontal installation. The feed amount may be corrected. In such a case, the weight for each type of paper P is included as a variable. For example, as a result of the experiment, the weight I for each type of paper P is assumed to be a weight I, and the difference J in the actual feed amount per unit feed amount between the vertical installation and the horizontal installation is “J = 998.75 × I When the relational expression “÷ 1950.8” is obtained, the correction value is calculated by including the relational expression in the arithmetic expression. According to such a configuration, since the correction value is calculated using the relational expression and the feed amount is corrected at the time of correction, the recording capacity can be reduced compared to storing correction data in advance. it can. Further, since a relational expression that takes into account the weight of each type of paper P is used, even if the type of paper P is changed, paper feeding can be performed accurately.

  In this embodiment, the leading edge position of the paper P is acquired and correction data for each division range to which the leading edge position belongs is used. However, the trailing edge position of the paper P is acquired and for each division range to which the trailing edge position belongs. The correction data may be used.

  Further, in the present embodiment, the vertical installation is the installation attitude in which the feeding posture of the paper P during printing is an upright standing posture, but the vertical installation is the installation posture in which the feeding posture is a downward standing posture. Also good.

  DESCRIPTION OF SYMBOLS 1: Recording apparatus 3: Printing part 6: Posture detection mechanism 42: Conveyance roller 47: Paper position acquisition part 81: 1st rotary body 82: 1st optical sensor 91: Weight part 92: Detection Mark: 104: Transport data correction unit, 107: Discharge data correction unit, P: Paper, R: Feed path

The present invention relates to a conveying apparatus and a recording apparatus that can freely perform a vertical installation in which a feeding posture of a recording medium at the time of image recording is an upright posture and a horizontal installation in which the feeding posture is a horizontal posture. is there.

An object of the present invention is to provide a transport apparatus and a recording apparatus that can accurately perform paper feeding during image recording in a recording apparatus that can be installed vertically or horizontally.

The transport device of the present invention is a transport device that transports a medium, and acquires information indicating a transport unit that transports the medium with transport data including a target feed amount along a transport path, and information indicating an installation posture of the transport device. And a control unit that changes the target feed amount based on the acquired information.
In this case, with respect to a predetermined path of the feeding paths, the angle of the medium transport with respect to the installation surface of the transport apparatus is first than the first installation posture in which the angle of the medium transport with respect to the installation surface of the transport apparatus is the first angle. It is preferable that the second installation posture, which is a second angle larger than the angle, is set so as to increase the target feed amount.
Further, the apparatus further comprises medium position detecting means for detecting the front end position and / or the rear end position of the medium in the feed path, and the control unit has the front end position and / or the rear end position in a plurality of divided sections into which the feed path is divided. It is preferable to change the target feed amount for each divided section.
Furthermore, it is preferable that the control unit changes the target feed amount based on the medium type data for each medium type.
On the other hand, it is preferable that the transport device includes a transport roller that transports the medium and a discharge roller that discharges the medium transported by the transport roller, and the control unit preferably changes the target feed amount of the transport roller.
A recording apparatus according to the present invention includes the above-described transport device and an image recording unit that performs recording on a medium transported by the transport device.
In this case, the recording apparatus includes a conveyance roller disposed on the upstream side in the conveyance direction and a discharge roller disposed on the downstream side with respect to the image recording unit, and the control unit indicates the installation posture. It is preferable to change the target feed amount based on the information.
The recording apparatus preferably includes a medium storage unit that stores a medium and a feed roller that feeds the medium in the medium storage unit, and the transport roller is preferably positioned downstream of the feed roller. .
Furthermore, it is preferable that the image recording unit is an ink jet system and ejects ink based on the ejection data to record an image, and the control unit changes the ejection data based on information indicating the installation posture.

Claims (9)

A recording apparatus capable of freely setting a vertical installation in which a feeding posture of a recording medium at the time of image recording is an upright standing posture and a horizontal installation in which the feeding posture is a horizontal posture,
Medium feeding means for feeding the recording medium by a predetermined feeding amount along a feeding path;
Image recording means for recording an image on the recording medium that is sent in synchronization with the drive of the medium feeding means;
Installation posture detection means for detecting whether the installation posture is the vertical installation or the horizontal installation;
A recording apparatus comprising: a feed amount correcting unit that corrects the feed amount according to a detection result by the installation posture detecting unit.   The recording apparatus according to claim 1, wherein the feed amount correcting unit corrects the feed amount based on a control table storing correction data for each installation posture.   The recording apparatus according to claim 2, wherein the correction data includes medium-specific correction data for each type of the recording medium. A medium position detecting means for detecting a leading edge position and / or a trailing edge position of the recording medium in the feeding path;
The correction data includes section correction data for each of the divided sections to which the front end position and / or the rear end position belong with respect to a plurality of divided sections obtained by dividing the feed path. Item 4. The recording device according to any one of Items 2 and 3.   The feed amount correcting means is based on a relational expression showing a relation between an actual feed amount per unit feed amount in the vertical installation and an actual feed amount per unit feed amount in the horizontal installation. The recording apparatus according to claim 1, wherein correction is performed.   The recording apparatus according to claim 5, wherein the relational expression includes a weight for each type of the recording medium as a variable. The image recording means records an image by an inkjet method,
The recording apparatus according to claim 1, further comprising discharge data correction means for correcting discharge data based on a detection result by the installation posture detection means.   The recording apparatus according to claim 7, wherein the correction data for correcting the ejection data includes correction data for each medium for each type of the recording medium. The installation posture detection means includes
A rotating body that has a weight portion arranged at one position in the circumferential direction and a detection mark arranged at one position in the circumferential direction, and is arranged to be freely rotatable,
A vertical installation detection sensor that is arranged to face the detection mark of the rotating body rotated by the weight of the weight portion during the vertical installation, and detects the presence or absence of the detection mark. The recording apparatus according to claim 1.

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