JP2007118301A - Recording apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a skew of a recording paper generated by a load of a spur suppressing the floating of the recording paper, in an inkjet recording apparatus which feeds the recording paper from a paper feeding part to perform recording in a recording region. <P>SOLUTION: A plurality of urging rollers suppressing the floating of the recording paper is so constituted as to be movably attached to each urging roller holding member. A specific urging roller of a plurality of the urging rollers is so constituted as to be movably attached to each urging roller holding member. Furthermore, a plurality of the urging rollers are attached to one urging roller holding member, so constituted as to allow the urging roller holding member to move. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a transport unit configuration in an ink jet recording apparatus that feeds recording paper from a paper feed unit to a recording area and performs recording using an ink jet recording unit while transporting the recording area by a transport unit.

  The ink jet recording apparatus performs recording by an ink jet recording unit while transporting a recording sheet by a transport roller.

As shown in Japanese Patent No. 3432052 and Japanese Patent No. 3507485, the conventional transport unit is configured to feed recording paper on a plurality of ribs of the platen formed in the recording paper transport direction by two transport rollers arranged with the platen interposed therebetween. Transport. In addition, a pressing member represented by a spur that pushes the recording paper down to the platen side is provided between the ribs of the platen on the downstream side in the recording paper conveyance direction from the ink jet recording means. Further, as shown in Japanese Patent Laid-Open No. 2000-71532, the pressing members are arranged in the concave portions of the platen arranged at an equal pitch.
Japanese Patent Registration No. 3432052 Japanese Patent Registration No. 3507485 JP 2000-71532 A

  However, in recent years, inkjet recording apparatuses have been required to support recording papers of various sizes, from a small business card size to a large size A4 size, and depending on the recording apparatus up to A3. If the pressing member is disposed in a balanced manner on the corresponding maximum width recording sheet, the pressing member may not be disposed in a balanced manner on a smaller recording sheet. For example, as shown in FIG. 8, when the pressing members 501 ((a) to (i)) are arranged so as to be balanced on the corresponding maximum size recording paper (A4 size in FIG. 8), a smaller business card size ( For the paper width indicated by the dotted line in FIG. 8, the load due to the pressing members 501 (a) and 501 (b) is strongly applied toward the right side of the drawing, and the balance of the load during conveyance is deteriorated. If the pressing member is not placed on the recording paper in a well-balanced manner, the recording paper is skewed when being conveyed by the conveying roller. Skew is noticeable in printing on the leading edge and trailing edge of recording paper conveyed by only one conveying roller.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a transport unit in which a pressing member is not skewed in an ink jet recording apparatus that feeds recording paper from a paper feeding unit and performs recording in a recording area.

  In order to achieve the above object, the present invention is in contact with the first conveyance roller on the upstream side in the conveyance direction for conveying the recording paper, the second conveyance roller on the downstream side, and the first conveyance roller and the second conveyance roller, respectively. A first driven roller that rotates, a second driven roller, and a plurality of urging rollers that are arranged upstream of the second conveying roller in the conveying direction to prevent the recording paper from floating and are further rotated by the conveyed recording paper; The plurality of urging rollers are respectively attached to the inkjet recording apparatus including a platen positioned between the first conveyance roller and the second conveyance roller and supporting a recording sheet and defining a distance between the recording head and the recording sheet. It is configured to be movably attached to the force roller holding member.

  In addition, a first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, a first driven roller that rotates in contact with the first transport roller and the second transport roller, and a second transport roller. A driven roller, a plurality of urging rollers disposed upstream of the second conveying roller in the conveying direction to prevent the recording paper from floating, and further driven to rotate by the conveyed recording paper; the first conveying roller; In the ink jet recording apparatus including a platen that is positioned between the conveyance rollers and supports the recording paper and defines the interval between the recording head and the recording paper, each of the plurality of urging rollers is urged. It is configured to be movably attached to the roller holding member.

  In addition, a first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, a first driven roller that rotates in contact with the first transport roller and the second transport roller, and a second transport roller. A driven roller, a plurality of urging rollers disposed upstream of the second conveying roller in the conveying direction to prevent the recording paper from floating, and further driven to rotate by the conveyed recording paper; the first conveying roller; In the inkjet recording apparatus including a platen that is positioned between the conveying rollers and supports the recording paper and defines the interval between the recording head and the recording paper, the plurality of urging rollers are attached to one urging roller holding member, The urging roller holding member is configured to be movable.

  Here, the one urging roller holding member is a second driven roller holding member that holds the second driven roller.

  In addition, a first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, a first driven roller that rotates in contact with the first transport roller and the second transport roller, and a second transport roller. A driven roller, a third transport roller disposed upstream in the transport direction of the second transport roller, a third driven roller that contacts and rotates with the third transport roller, and upstream in the transport direction of the second transport roller Positioned between a plurality of urging rollers that are arranged and prevent the recording paper from floating and are driven to rotate by the recording paper being conveyed, and between the first conveying roller and the third conveying roller to support and record the recording paper In the ink jet recording apparatus including a platen that defines a distance between the head and the recording paper, each of the plurality of urging rollers is configured to be movably attached to the urging roller holding member.

  In addition, a first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, a first driven roller that rotates in contact with the first transport roller and the second transport roller, and a second transport roller. A driven roller, a third transport roller disposed upstream in the transport direction of the second transport roller, a third driven roller that contacts and rotates with the third transport roller, and upstream in the transport direction of the second transport roller Positioned between a plurality of urging rollers that are arranged and prevent the recording paper from floating and are driven to rotate by the recording paper being conveyed, and between the first conveying roller and the third conveying roller to support and record the recording paper In an ink jet recording apparatus including a platen that defines a distance between the head and the recording paper, a specific urging roller of the plurality of urging rollers is configured to be movably attached to the urging roller holding member. To.

  In addition, a first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, a first driven roller that rotates in contact with the first transport roller and the second transport roller, and a second transport roller. A driven roller, a third transport roller disposed upstream in the transport direction of the second transport roller, a third driven roller that contacts and rotates with the third transport roller, and upstream in the transport direction of the second transport roller Positioned between a plurality of urging rollers that are arranged and prevent the recording paper from floating and are driven to rotate by the recording paper being conveyed, and between the first conveying roller and the third conveying roller to support and record the recording paper In an ink jet recording apparatus including a platen that defines a distance between a head and recording paper, the plurality of urging rollers are attached to one urging roller holding member, and the urging roller holding members are movable. It is configured.

  Here, the one urging roller holding member is a second driven roller holding member that holds the second driven roller.

  Further, the urging roller holding member is configured to move in a direction in which the urging roller to be held is in contact with or separated from the recording surface of the recording paper to be conveyed.

  Further, the urging roller holding member can be stopped at a plurality of positions within the moving range so that the abutting force of the urging roller to be held on the recording surface of the recording paper conveyed is variable. Constitute.

  Further, the urging roller holding member may be configured to move in a direction crossing a recording sheet conveyance direction in which the urging roller to be held is conveyed.

  Here, the urging roller holding member moves to a position where the plurality of urging rollers are evenly arranged in the width direction of the standard size recording paper.

  The urging roller holding member that holds the plurality of urging rollers has a cam contact shape, and is moved in accordance with the rotation of the cam member disposed outside the recording area.

  The urging roller urges the recording paper in the platen direction by a spring during conveyance of the recording paper.

  The urging roller is a spur.

  In addition, a first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, a first driven roller that rotates in contact with the first transport roller and the second transport roller, and a second transport roller. A driven roller, a plurality of urging rollers disposed upstream of the second conveying roller in the conveying direction to prevent the recording paper from floating, and further driven to rotate by the conveyed recording paper; the first conveying roller; In an inkjet recording apparatus including a platen that is positioned between conveyance rollers, supports a recording sheet, and defines a distance between the recording head and the recording sheet, and a detection unit that detects a width size of the recording sheet recorded before recording. The width of the recording paper is detected before the start of printing, and the urging roller is moved after the detection until the start of printing.

  In addition, a first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, a first driven roller that rotates in contact with the first transport roller and the second transport roller, and a second transport roller. A driven roller, a third transport roller disposed upstream in the transport direction of the second transport roller, a third driven roller that contacts and rotates with the third transport roller, and upstream in the transport direction of the second transport roller Positioned between a plurality of urging rollers that are arranged and prevent the recording paper from floating and are driven to rotate by the recording paper being conveyed, and between the first conveying roller and the third conveying roller to support and record the recording paper In an inkjet recording apparatus that includes a platen that defines the distance between the head and the recording paper and a detection means that detects the width size of the recording paper recorded before recording, the width size of the recording paper is detected and detected before printing starts. Moving the urging roller until the start printing from after.

  According to the present invention, it is possible to provide an urging roller in a well-balanced manner for each paper width size, and it is possible to provide a recording apparatus that is not skewed by the load of the urging roller.

  Hereinafter, embodiments of the present invention will be described based on a plurality of examples with reference to the drawings.

  FIG. 1 is a schematic diagram of a conveying unit according to a first embodiment of the present invention, and FIG. 2 is a schematic diagram showing a roller arrangement on the downstream side of the conveying unit in FIG.

  The transport unit according to the present exemplary embodiment includes a transport roller 201 that transports the recording paper P fed from the paper feed unit 100, a transport roller pair including a transport roller 201 and a pinch roller 202 that is driven to rotate, and a recording paper on the transport roller 201. A discharge roller 301 that is provided downstream in the transport direction (the arrow direction in FIGS. 1 and 2) and transports the recording paper P that has passed through the pair of transport rollers and discharges the recording paper to the outside of the apparatus. A pair of paper discharge rollers including a paper discharge pinch roller 302, a platen 401 that supports the recording paper P conveyed by the conveyance roller pair and the paper discharge roller pair, and the conveyance direction upstream of the paper discharge roller pair intersect with the conveyance direction. A plurality of urging rollers 501 ((a) to (i)) arranged in the direction to prevent the recording paper P from floating are formed. Further, a paper width detection sensor (not shown) for determining the paper width by detecting the left and right edges of the recording paper is mounted on the surface of the carriage 601 on which the recording head H is mounted facing the recording paper P.

  FIG. 3 is a top view of the transport unit. The platen 401 includes a plurality of ribs 401a and ribs 401b lower than 401a in the transport direction, and the recording paper P is printed by the recording head H while being transported on the ribs 401a. Here, the recording paper P is normally conveyed on the ribs 401a, and when the recording paper P becomes downwardly convex between the ribs 401a, the height direction is defined by the ribs 401b. The paper discharge pinch roller 302 and the urging roller 501 ((a) to (i)) are spurs. The urging roller 501 is located on the center line between the positions (501 (a) and 501 (i)) where the recording apparatus presses the left and right edges of the maximum size recording paper and a plurality of paper discharge pinch rollers 302 arranged in the paper width direction. And between the ribs 401a of the platen 401 (501 (b) to 501 (h)).

  FIG. 4 is a schematic view of the paper discharge pinch roller and the urging roller mounting portion. The urging roller 501 (a) has a urging roller holder 502, the urging rollers 501 (b) to 501 (i) have a urging roller spring 503, which is a coil spring, attached to a discharge pinch roller holder 303 to which the discharge pinch roller 302 is attached. Attached through. FIG. 5 is a schematic view of the urging roller holder 502 portion. The urging roller holder 502 to which the urging roller 501 (a) and the urging roller spring 503 are attached includes a rotation shaft 502a and a cam contact portion 502b, and the paper discharge pinch roller holder 303 can rotate around the rotation shaft 502a. It is attached. Further, an urging roller holder driving cam 304 for operating the urging roller holder 502 is attached outside the recording area of the platen 401.

  Next, the operation will be described. The leading edge Pa of the recording paper P fed from the paper feeding section 100 is drawn into the nipping portion between the conveying roller 201 and the pinch roller 202, and after aligning the leading edge Pa along the nipping portion, the conveying roller 201 And the pinch roller 202 are conveyed on the rib 401a of the platen 401 to the print start position. After transporting to the print start position, before the start of printing, the left and right edges of the recording paper P conveyed by a paper width detection sensor (not shown) mounted on the carriage 601 by one reciprocation are detected to determine the paper width of the recording paper. Determine. Here, the paper width detection has a paper length detection sensor for detecting the length of the recording paper P in the paper supply unit 100, and determines the recording paper type from the paper length to determine the width size of the recording paper. You may do it.

  When a recording sheet, for example, a business card, on which the urging rollers 501 ((a) to (i)) are not placed in a well-balanced state by determining the sheet width of the recording sheet P that has been conveyed, a drive source (not shown) is used. The biasing roller holder 502 that drives and rotates the biasing roller holder driving cam 304 and holds the biasing roller 501 (a) is moved upward so that the biasing roller 501 (a) does not contact the printing surface of the recording paper P. Evacuate until. By separating the urging roller 501 (a) from the recording surface of the recording paper P, when the business card size is conveyed, only the urging roller 501 (b) is placed near the center in the paper width direction. The load balance by the urging roller becomes good.

  In the first embodiment, one urging roller 501 (a) is configured to be operable. However, all of the recording paper and the printing pattern in which the trailing edge of the paper does not curl, for example, the recording paper having no high density printing such as a business card, are all The urging roller may be retracted upward.

  FIG. 6 is a schematic view of the urging roller portion of the second embodiment according to the present invention.

  The urging rollers 501 ((a) to (i)) are attached to the paper discharge pinch roller holder 303 via urging roller springs 503 that are coil springs. The paper discharge pinch roller holder 303 is attached to the platen 401 so as to rotate about a rotation shaft 303 a that is coaxial with the central axis of the paper discharge pinch roller 302. Further, the paper discharge pinch roller holder 303 has a cam contact portion 303b at an end thereof, and is operated by a biasing roller holder driving cam 304 attached outside the recording area of the platen 401.

  Next, the operation will be described. The leading edge of the recording paper fed from a paper feeding unit (not shown) is drawn into the nipping portion between the conveying roller 201 and the pinch roller 202, and after aligning the leading edge along the nipping portion, the conveying roller 201 And the pinch roller 202 are conveyed on the rib 401a of the platen 401 to the print start position. After the recording paper is transported to the print start position, the paper width detection sensor (not shown) mounted on the carriage (not shown) reciprocates once before the start of printing. Is determined. Here, the paper width is detected by having a paper length detection sensor for detecting the length of the recording paper in the paper feed unit (not shown), and determining the type of the recording paper from the length of the paper to determine the width size of the recording paper. May be determined.

  By determining the width of the conveyed recording paper, when a recording paper, for example, a business card, on which the urging rollers 501 ((a) to (i)) are not placed in a well-balanced state is conveyed, a drive source (not shown) is driven. Then, the urging roller holder driving cam 304 is rotated, the discharge pinch roller holder 303 is rotated about the rotation shaft 303a, and the urging rollers 501 ((a) to (i)) are brought into contact with the printing surface of the recording paper. Retreat to the upper side where it does not contact. By separating the urging roller from the recording surface, it is possible to perform transport without load by the urging roller.

  In the first embodiment, the urging roller holder 502 to which the urging roller 501 (a) is attached is configured to be movable in the vertical direction with respect to the recording surface of the recording paper in the paper ejection pinch roller holder 303. However, in this embodiment, the recording paper is used. It is movable in the direction crossing the transport direction, and the position in the width direction on the recording paper P is changed.

  FIG. 7 is a schematic view of the urging roller portion of the third embodiment according to the present invention. The urging roller 501 is attached to the urging roller holder 502 via an urging roller spring 503 that is a coil spring. The urging roller holder 502 to which the urging roller 501 and the urging roller spring 503 are attached includes a guide groove 502c and a guide portion 502d. The urging roller holder 502 is attached to the guide shaft 303b and the guide groove 303c of the discharge pinch roller holder 303 to which the discharge pinch roller 302 is attached. Attached so as to be movable. Further, a cam contact portion 502e is provided at the end portion. Here, the urging roller holder 502 is urged by the compression spring 504 in the direction indicated by the arrow A in the drawing, and the urging roller holder comprising a groove cam for operating the urging roller holder 502 outside the recording area of the platen 401. It is pressed against the drive cam 304. When the urging roller holder driving cam 304 rotates and reaches a position where the groove becomes deep, the urging roller holder 502 moves in the direction A in the figure by the spring force of the compression spring 504.

  Next, the operation will be described. The leading edge of the recording paper fed from a paper feeding unit (not shown) is drawn into the nipping portion between the conveying roller 201 and the pinch roller 202, and after aligning the leading edge along the nipping portion, the conveying roller 201 And the pinch roller 202 are conveyed on the rib 401a of the platen 401 to the print start position. After the recording paper is transported to the print start position, the paper width detection sensor (not shown) mounted on the carriage (not shown) reciprocates once before the start of printing. Is determined. Here, the paper width is detected by having a paper length detection sensor for detecting the length of the recording paper in the paper feed unit (not shown), and determining the type of the recording paper from the length of the paper to determine the width size of the recording paper. May be determined.

  By determining the width of the conveyed recording paper, when a recording paper, for example, a business card, on which the urging rollers 501 ((a) to (i)) are not placed in a well-balanced state is conveyed, a drive source (not shown) is driven. Then, the urging roller holder driving cam 304 is rotated, and the urging roller holder 502 that holds the urging roller 501 (a) is moved in parallel until the urging roller 501 (a) comes off the recording surface of the recording paper. Evacuate. By retracting the urging roller 501 (a) from the recording surface of the recording paper, when the business card size is conveyed, only the urging roller 501 (b) is placed near the center in the paper width direction. The load balance by the force roller is improved.

  In the first to third embodiments, the detection unit for determining the paper width before printing is provided. However, depending on the type of recording paper designated by the printer driver, a driving source (not shown) is driven before printing to activate the paper. The urging roller may be operated by rotating the roller holder driving cam 304.

  In the first to third embodiments, the detection unit for determining the paper width before printing is provided. However, a lever that allows the user to manually change the position of the urging roller depending on the recording paper to be printed may be provided.

1 is a schematic view of a transport unit according to a first embodiment of the present invention. The roller arrangement schematic of the conveyance part of 1st Example by this invention. The top view of the conveyance part of 1st Example by this invention. FIG. 3 is a schematic view of a mounting portion for a paper discharge pinch roller and a biasing roller according to the first embodiment of the present invention. Schematic of the urging roller holder part of the first embodiment according to the present invention. The schematic diagram of the energizing roller part of the 2nd example by the present invention. The schematic diagram of the energizing roller part of the 3rd example by the present invention. Schematic of the example of arrangement | positioning of the conventional urging | biasing roller.

Explanation of symbols

P Recording paper Pa Recording paper leading edge H Recording head 100 Paper feed unit 201 Conveying roller 202 Pinch roller 301 Paper ejection roller 302 Paper ejection pinch roller 303 Paper ejection pinch roller holder 303a Rotating shaft 303b Guide shaft 303c Guide groove 304 Driving bias roller holder drive Cam 401 Platen 401a Rib 401b Rib 501 (a) to (h) Energizing roller, pressing member 502 Energizing roller holder 502a Rotating shaft 502b Cam abutting portion 502c Guide groove 502d Guide portion 502e Cam abutting portion 503 Energizing roller spring 504 Compression spring 601 Carriage

Claims (16)

  A first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, and a first driven roller and a second driven roller that are in contact with and rotate in contact with the first transport roller and the second transport roller, respectively. A plurality of urging rollers that are disposed upstream of the second conveying roller in the conveying direction to prevent the recording paper from floating and are driven to rotate by the conveyed recording paper, the first conveying roller, and the second conveying roller In the ink jet recording apparatus including a platen that is positioned between and supporting the recording paper and defining a distance between the recording head and the recording paper, each of the plurality of urging rollers is attached to an urging roller holding member, and the urging roller An ink jet recording apparatus, wherein the holding member is movable.   A first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, and a first driven roller and a second driven roller that are in contact with and rotate in contact with the first transport roller and the second transport roller, respectively. A plurality of urging rollers that are disposed upstream of the second conveying roller in the conveying direction to prevent the recording paper from floating and are driven to rotate by the conveyed recording paper, the first conveying roller, and the second conveying roller In the inkjet recording apparatus including a platen that supports the recording paper and defines the interval between the recording head and the recording paper, the specific urging roller among the plurality of urging rollers is a urging roller holding member. An ink jet recording apparatus, wherein the ink jet recording apparatus is attached and the urging roller holding member is movable.   A first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, and a first driven roller and a second driven roller that are in contact with and rotate in contact with the first transport roller and the second transport roller, respectively. A plurality of urging rollers that are disposed upstream of the second conveying roller in the conveying direction to prevent the recording paper from floating and are driven to rotate by the conveyed recording paper, and the first conveying roller and the second conveying roller. In the ink jet recording apparatus including a platen positioned between and supporting the recording paper and defining a distance between the recording head and the recording paper, the plurality of urging rollers are attached to one urging roller holding member, and the urging rollers An ink jet recording apparatus, wherein the holding member is movable.   A first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, and a first driven roller and a second driven roller that are in contact with and rotate in contact with the first transport roller and the second transport roller, respectively. A third conveying roller disposed upstream of the second conveying roller in the conveying direction, a third driven roller that contacts and rotates with the third conveying roller, and disposed upstream of the second conveying roller in the conveying direction. A plurality of urging rollers which are prevented from floating of the recording paper and are driven to rotate by the conveyed recording paper, and are positioned between the first conveying roller and the third conveying roller and support the recording paper; In the ink jet recording apparatus provided with a platen that defines the interval of the recording paper, each of the plurality of urging rollers is attached to an urging roller holding member, and the urging roller holding member is movable. An ink jet recording apparatus according to symptoms.   A first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, and a first driven roller and a second driven roller that are in contact with and rotate in contact with the first transport roller and the second transport roller, respectively. A third conveying roller disposed upstream of the second conveying roller in the conveying direction, a third driven roller that contacts and rotates with the third conveying roller, and disposed upstream of the second conveying roller in the conveying direction. A plurality of urging rollers which are prevented from floating of the recording paper and are driven to rotate by the conveyed recording paper, and are positioned between the first conveying roller and the third conveying roller and support the recording paper; In the ink jet recording apparatus including a platen that defines a recording paper interval, a specific urging roller among the plurality of urging rollers is attached to an urging roller holding member, and the urging roller holding member is An ink jet recording apparatus which is a rotatably.   A first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, and a first driven roller and a second driven roller that are in contact with and rotate in contact with the first transport roller and the second transport roller, respectively. A third conveying roller disposed upstream of the second conveying roller in the conveying direction, a third driven roller that contacts and rotates with the third conveying roller, and disposed upstream of the second conveying roller in the conveying direction. A plurality of urging rollers which are prevented from floating of the recording paper and are driven to rotate by the conveyed recording paper, and are positioned between the first conveying roller and the third conveying roller and support the recording paper; In the ink jet recording apparatus including a platen that defines the interval between recording papers, the plurality of urging rollers are attached to one urging roller holding member, and the urging roller holding members are movable. An ink jet recording apparatus characterized.   The inkjet recording apparatus according to claim 3, wherein the one urging roller holding member is a second driven roller holding member that holds the second driven roller.   The ink jet recording apparatus according to claim 1, wherein the urging roller holding member moves in a direction in which the urging roller to be held moves toward and away from a recording surface of a recording sheet to be conveyed.   The urging roller holding member can be stopped at a plurality of positions within a moving range so that the abutting force of the urging roller to be held on the recording surface of the recording paper conveyed is variable. An ink jet recording apparatus according to claim 1.   7. The ink jet recording apparatus according to claim 1, wherein the urging roller holding member moves in a direction intersecting a conveyance direction of the recording paper on which the urging roller to be held is conveyed.   11. The ink jet recording apparatus according to claim 10, wherein the urging roller holding member moves to a position where the plurality of urging rollers are evenly arranged in a width direction of a standard size recording paper.   12. The ink jet recording apparatus according to claim 1, wherein the urging roller holding member has a cam abutting shape and is moved in accordance with rotation of a cam member arranged outside the recording area. .   13. The ink jet recording apparatus according to claim 1, wherein the urging roller urges the recording paper in a platen direction by a spring during conveyance of the recording paper.   The inkjet recording apparatus according to claim 1, wherein the urging roller is a spur.   A first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, and a first driven roller and a second driven roller that are in contact with and rotate in contact with the first transport roller and the second transport roller, respectively. A plurality of urging rollers that are disposed upstream of the second conveying roller in the conveying direction to prevent the recording paper from floating and are driven to rotate by the conveyed recording paper, the first conveying roller, and the second conveying roller In an ink jet recording apparatus, comprising a platen that supports a recording sheet and defines a distance between the recording head and the recording sheet, and a detection unit that detects a width size of the recording sheet to be recorded before recording. An ink jet recording apparatus comprising: detecting a width size of the recording paper; and moving the urging roller between the detection and the start of printing.   A first transport roller on the upstream side in the transport direction for transporting the recording paper, a second transport roller on the downstream side, and a first driven roller and a second driven roller that are in contact with and rotate in contact with the first transport roller and the second transport roller, respectively. A third conveying roller disposed upstream of the second conveying roller in the conveying direction, a third driven roller that contacts and rotates with the third conveying roller, and disposed upstream of the second conveying roller in the conveying direction. A plurality of urging rollers which are prevented from floating of the recording paper and are driven to rotate by the conveyed recording paper, and are positioned between the first conveying roller and the third conveying roller and support the recording paper; In an inkjet recording apparatus comprising a platen that defines the interval between recording sheets and a detecting means for detecting the width size of the recording sheet recorded before recording, after detecting and detecting the width size of the recording sheet before printing An ink jet recording apparatus characterized by moving the urging roller until et print start.

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