JP2014151606A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer capable of transporting a fanfold sheet in the state of a small transport load and small variation in the transport load.SOLUTION: A printer 1 includes: a printer body 3; a pedestal part 5 for placing the printer body 3 on; and a sheet tray 6 for incorporating a fanfold sheet 2. The printer body 3 includes a sheet guide part 13b for guiding the fanfold sheet 2 extracted from the sheet tray 6. The sheet tray 6 is positioned underneath the sheet guide part 13b by a given distance H1 in a printer vertical direction Z. The given distance H1 is set in a manner so that a length of the fanfold sheet 2 extended from an uppermost surface of the fanfold sheet placed on the sheet tray 6 to the sheet guide part 13b is at least twice the length between folds of the fanfold sheet in the printer vertical direction Z.

Description

  The present invention relates to a printer that prints on fanfold paper, and more particularly, to a printer that can supply fanfold paper in a folded state toward a printing position without applying an excessive conveyance load.

  As a recording medium for a printer such as an ink jet printer, a fanfold paper that is a continuous paper is known. If the fanfold paper is not set in the printer in a state where the fanfold paper is correctly positioned in the front-rear direction and the left-right direction, the fanfold paper drawn out of the paper tray and conveyed is twisted and falls. As a result, the conveyance load applied to the conveyance mechanism of the printer increases, and the variation in the conveyance load also increases, so that the conveyance pitch may be disturbed and printing defects may occur.

  Patent Document 1 proposes a printer that can set fanfold paper at an optimal position. In this printer, a step portion is formed at the front end of the fanfold paper placement portion so that the fanfold paper can be accurately positioned in the front-rear direction. In addition, a guide surface is disposed on the side portion of the placement portion so that the fanfold paper is accurately positioned in the width direction. As a result, the fanfold paper being conveyed is prevented from being twisted, tilted, and the like, and fluctuations in the paper feed load are suppressed.

JP 2007-237565 A

  However, even if the fanfold paper is set on the paper tray in a state where the fanfold paper is positioned in the front, rear, left, and right directions, there may be a case where the transport load and the transport load fluctuation generated when the fanfold paper is transported cannot be sufficiently reduced. That is, the fanfold paper placed on the paper tray in an alternately folded state is pulled out from the paper tray while each fold is extended. For this reason, the conveyance load of the fanfold paper applied to the conveyance mechanism of the printer is likely to fluctuate greatly depending on the bent state of the fold. If the variation in the conveyance load is large, the conveyance pitch is disturbed, and the print quality may be deteriorated.

  In particular, when the fanfold paper is a label paper having a configuration in which a label for printing an image such as a photograph is attached to the mount, the paper is stiff. For this reason, the strength of the waist in the crease part with a perforation differs greatly from the other part. Therefore, the transport load acting on the transport mechanism varies greatly depending on the bent state of each fold of the label sheet while being fed from the paper tray to the transport mechanism.

  In view of the above, an object of the present invention is to propose a printer capable of transporting fanfold paper in a state where the transport load is small and the transport load fluctuation is small.

In order to solve the above problems, the printer of the present invention provides:
The printer body,
A leg for mounting the printer body;
A paper tray on which fanfold paper is placed;
Have
The printer body includes a transport mechanism that transports the fanfold paper, and a paper guide section that guides the fanfold paper pulled out from the paper tray toward the transport mechanism,
The paper tray is positioned below the printer guide by a predetermined distance with respect to the paper guide portion,
When the length of the fanfold paper spanned between the uppermost surface of the fanfold paper placed on the paper tray and the paper guide portion is along the vertical direction of the printer, the fanfold paper The predetermined distance is set so as to be at least twice the length between the creases.

  The fanfold paper spanned between the uppermost surface of the fanfold paper placed on the paper tray and the paper guide portion of the transport mechanism is in a state where the fold of the paper portion is sufficiently extended and hangs down naturally. Therefore, it is possible to prevent or suppress a large transport load and a large transport load fluctuation from being applied to the transport mechanism due to the bent state of the fold. Further, by setting the leg portion on which the printer main body portion is placed to an appropriate height, the predetermined distance from the paper tray to the paper guide portion of the printer main body portion positioned above the paper tray can be set to an appropriate distance. Easy.

  In the printer according to the aspect of the invention, it is preferable that the paper tray protrudes outward from the leg portion in a direction orthogonal to the vertical direction of the printer.

  If the insertion angle of the fanfold paper spanned over the paper guide section is steep, the fanfold paper will be greatly bent at the paper guide section, increasing the resistance of the fanfold paper transport and increasing the transport load applied to the transport mechanism. . When the paper tray protrudes outward from the leg portion, the insertion angle of the fanfold paper with respect to the paper guide portion can be made a gentle angle, and the conveyance load can be reduced.

  In the printer according to the aspect of the invention, it is preferable that the paper tray includes a positioning unit that defines a position in the width direction of the fanfold paper. If the position in the width direction of the fanfold sheet pulled out from the sheet tray is deviated from the position in the width direction of the fanfold sheet conveyed by the conveyance mechanism, problems such as skew occur and the conveyance load increases. There is also a risk of a paper jam. In the present invention, since the fanfold paper can be pulled out from the paper tray while being positioned in the width direction, such an adverse effect can be prevented.

  In particular, it is desirable to position the fanfold paper mounted on the paper tray three-dimensionally in the vertical direction, the front-rear direction, and the width direction of the printer. In this way, the fanfold paper can be transported to the transport mechanism in a transport state that is close to the case where it is supplied in a planar state from the direction along the transport path. As a result, the transport load and transport load fluctuation can be sufficiently suppressed, and transport errors such as skew can be reliably prevented.

  Next, the printer of the present invention preferably includes a cover that covers at least a portion of the fanfold paper positioned between the paper tray and the paper guide portion.

  When the printer is on standby for printing, the fanfold paper is in a state of being stretched between the paper tray and the paper guide portion of the transport mechanism. If the portion of the fanfold paper that is spanned remains exposed, the fanfold paper may be adversely affected. For example, an operator or the like may accidentally touch the fanfold paper and damage the fanfold paper. In addition, foreign matter may adhere to the fanfold paper, and the printed surface or label may become dirty. By attaching the cover, such an adverse effect can be eliminated.

  In this case, it is preferable that the cover includes a guide for guiding the fanfold paper at least at a portion facing the paper guide portion.

  When the fanfold paper is back-fed by the transport mechanism, the rear end portion of the fanfold paper fed out from the paper guide portion is pressed against the inner surface of the cover, and the fanfold paper may be folded or damaged. By arranging the guide, it is possible to smoothly guide the fanfold paper fed from the paper guide portion by the back feed. Therefore, it is possible to prevent the fanfold paper from being folded or damaged during back feed.

It is a perspective view of an inkjet printer. It is a perspective view of an inkjet printer. It is explanatory drawing which shows the internal mechanism of an inkjet printer. FIG. 4 is an explanatory diagram illustrating a position of a paper tray in a printer vertical direction. FIG. 5 is an explanatory diagram illustrating positions of a paper tray in a printer width direction and a front-rear direction. It is a perspective view which shows the paper cover of an inkjet printer. FIG. 6 is a perspective view showing the inside of a paper cover. It is explanatory drawing which shows the function of the guide piece of a paper cover.

  Embodiments of a printer to which the present invention is applied will be described below with reference to the drawings.

  1 and 2 are external perspective views of an ink jet printer (hereinafter simply referred to as “printer”) according to the present embodiment. FIG. 1 shows the printer viewed from the right front side, and FIG. 2 shows the printer viewed from the left front side. The printer 1 performs printing on fanfold paper, in this example, label paper 2 indicated by an imaginary line in FIG. The label paper 2 includes a long mount 2a having a constant width and a rectangular label 2b attached to the surface of the mount 2a. The labels 2b are arranged on the surface of the mount 2a at regular intervals along the length direction of the label paper 2 and can be peeled off from the surface of the mount 2a. Sprocket holes 2c are formed in the edge portions on both sides in the paper width direction of the mount 2a. The sprocket holes 2 c are arranged at regular intervals along the length direction of the label paper 2. Further, the mount 2a is formed with perforations 2d (folds) extending in the paper width direction at portions between adjacent labels 2b. The label paper 2 is folded at the position of each perforation 2d.

  The printer 1 includes a printer main body 3, a display / input operation LCD panel 4, a support base 5 that is a leg portion on which the printer main body 3 is mounted, and a paper tray 6 that is a storage portion for the label paper 2. ing. The printer body 3 has a configuration in which a printer mechanism (not shown) is covered by a rectangular parallelepiped outer case 7 that is long in the longitudinal direction Y of the printer.

  The LCD panel 4 is attached to the upper part of the front surface 8 of the printer main body 3, and the display screen 4a faces the front of the printer. The left and right arm portions 4b and 4c protrude from the portions on both sides of the upper end of the back surface of the LCD panel 4. The end portions of the arm portions 4b and 4c are supported by the printer main body portion 3 so as to be rotatable around a rotation center line extending in the printer width direction X. For example, the LCD panel 4 can be rotated between a vertical position where the display screen 4a faces the front of the printer and a horizontal position where the display screen 4a faces the top of the printer.

  The support base 5 is a rectangular cylindrical base that opens in the longitudinal direction Y of the printer. A paper tray 6 is horizontally attached to the lower end portion of one side surface 5a of the support base 5 in the printer width direction X. The paper tray 6 protrudes outward in the printer width direction X from the side surface 5 a of the support base 5. In addition, the paper tray 6 is attached so as to be slidable in the printer width direction X, and can be stored in the support base 5 when not in use.

  A paper insertion slot 12 is formed in the printer main body 3 on the same side as the paper tray 6. Further, the tractor unit 13 is attached to the printer main body 3 so as to protrude outward in the printer width direction X from the paper insertion opening 12. In the unit case 13a of the tractor unit 13, a paper guide surface 13b (paper guide portion) is formed in a portion from the upper end surface to the side surface. The label paper 2 placed or mounted on the paper tray 6 is drawn upward in the up-down direction Z of the printer, is laid over the paper guide surface 13b of the tractor unit 13, and the inner side of the printer width direction X by the paper guide surface 13b. Be guided to. The label paper pulled out in this state is fed into the paper insertion slot 12 by the tractor unit 13.

  In the printer main body 3, a paper discharge port 14 is formed at a portion opposite to the paper insertion port 12 in the printer width direction X. A discharge tray 15 is attached to the printer main body 3 so as to extend horizontally from the paper discharge port 14 outward in the printer width direction X. The printed label paper 2 is discharged from the paper discharge port 14 along the discharge tray 15.

  Opening / closing lids 16 and 17 are attached to portions on both sides of the paper discharge port 14 in the printer main body 3. When the opening / closing lids 16 and 17 are opened, a cartridge mounting portion (not shown) formed inside the printer main body 3 is opened, and an ink cartridge (not shown) can be attached and detached. A memory card insertion slot 18 in which a storage medium, for example, printing information is stored, is formed at a lower portion of one opening / closing lid 17.

  FIG. 3 is an explanatory diagram showing the internal mechanism of the printer 1, and particularly shows the transport mechanism. As shown by a thick line in FIG. 3, a paper conveyance path 21 extending in the printer width direction X is formed inside the printer body 3. The paper transport path 21 extends from the paper insertion opening 12 to the paper discharge opening 14. A print head (inkjet head) 22 and a platen 23 are disposed opposite to each other in the middle of the paper transport path 21. The print head 22 is mounted on the head carriage 24. The head carriage 24 is reciprocated in the front-rear direction Y of the printer by a known carriage drive mechanism 24a including a motor, a belt-pulley type transmission mechanism, and the like.

  In the paper transport path 21, between the printing position of the print head 22 and the tractor unit 13, a paper feed roller pair 25 for feeding the label paper 2 toward the printing position is disposed. The paper feed roller pair 25 receives the driving force from the paper feed motor 26 via a driving force transmission mechanism 27 comprising a gear train. A pair of paper discharge rollers 28 for discharging the printed label paper 2 is disposed at a portion downstream of the printing position defined by the platen 23 in the paper transport direction. As indicated by a broken line in FIG. 3, the driving force from the paper discharge motor 29 is transmitted to the paper discharge roller pair 28 via a driving force transmission mechanism 30 including a gear train.

  Next, the tractor unit 13 includes a tractor pin 31 that circulates along an oval circulation path. As is well known, the tractor pin 31 moves while sequentially engaging with sprocket holes 2c (see FIG. 1) formed on both side edges of the label paper 2 in the width direction. It is conveyed toward the feed roller pair 25. A driving force from the tractor driving motor 32 is transmitted to the tractor unit 13 via a driving force transmission mechanism 33 including a gear train.

  As described above, the transport mechanism of the printer 1 includes the tractor unit 13, the paper feed roller pair 25 and the paper discharge roller pair 28 of the printer main body 3, and the driving mechanism of each roller pair. When the label paper 2 is set on the tractor unit 13 and print data is selected and a print command is input via the LCD panel 4 in this state, the conveyance of the label paper 2 is started. That is, driving of the tractor unit 13, the paper feed roller pair 25, and the paper discharge roller pair 28 is started.

  The label paper 2 pulled out from the paper tray 6 to the upper side of the printer is directed in the printer width direction by the paper guide surface 13 b and guided to the tractor unit 13. The label sheet 2 is fed into the sheet conveyance path 21 from the sheet insertion port 12 of the sheet conveyance path 21 by the tractor unit 13.

  The label paper 2 fed into the paper conveyance path 21 is nipped by the paper feed roller pair 25 and the paper discharge roller pair 28 and conveyed. When the print start position on the label paper 2 is positioned at the print position of the inkjet head 22, the head carriage 24 is moved by the carriage drive mechanism 24a, and an ink discharge operation for discharging ink from the print head 22 is performed. Is called. Printing is performed on the label 2b on the label paper 2 passing through the printing position by alternately repeating the ink ejection operation and the paper transport operation for sending the label paper 2 toward the downstream side in the transport direction.

[Paper tray position]
Next, the label paper 2 placed on the paper tray 6 is positioned so as to be in an optimum position in the three axial directions of the printer width direction X, the front-rear direction Y, and the vertical direction Z. Thereby, the conveyance load of the label paper 2 supplied from the paper tray 6 to the conveyance mechanism is reduced and the fluctuation range of the conveyance load is reduced. As a result, the label paper 2 can be transported with high accuracy by the transport mechanism, and deterioration in print quality due to transport errors such as a transport pitch disturbance can be prevented.

  FIG. 4 is an explanatory diagram showing the position in the printer vertical direction Z of the label paper 2 placed on the paper tray 6. As shown in this figure, the label paper 2 is folded along the perforation 2d to be in a state of a rectangular parallelepiped paper laminate 2A. The sheet portion between the perforations 2d of the label sheet 2 is sequentially drawn upward from the uppermost position of the sheet stack 2A and supplied to the tractor unit 13 positioned above. In a state where the label paper 2 is set on the tractor unit 13, the portion of the label paper 2 pulled out from the paper stack 2 </ b> A is bridged between the paper stack 2 </ b> A and the paper guide surface 13 b of the tractor unit 13. It will be in the state.

  Here, the span length L1 of the label paper 2 in the direction along the vertical direction Z of the printer (from the upper end surface 2e of the paper stack 2A, which is the uppermost surface of the fanfold paper placed on the paper tray 6) The distance to the upper end of the sheet guide surface 13b of the unit 13) is a length that is twice or more the length L2 of the sheet portion between the perforations 2d. That is, the paper loading on the paper tray 6 is always set so that the span length L1 is always twice or more the length L2 of the paper portion regardless of the size, height, etc. of the label paper 2 to be loaded. A height H1 from the placement surface 6a to the paper guide surface 13b (paper guide portion) is set. For example, the height H1 is ensured by using the support base 5 having an appropriate height H2.

  As described above, when the length L1 of the label paper 2 in the up-down direction Z of the printer is set, the perforation 2d (fold) is sufficiently extended at the span of the label paper 2 and the natural paper droops. It becomes a state. As a result, in the transport state of the label paper 2, an excessive force does not act on the spanning portion of the label paper 2. In other words, the transport load of the label paper 2 can be reduced, and fluctuations in the transport load of the label paper 2 accompanying the transport can be reduced.

  5A and 5B are explanatory views showing positions of the paper tray 6 in the printer width direction X and the front-rear direction Y. FIG.

  First, the position of the paper tray 6 in the printer width direction X will be described. The paper tray 6 is formed with a paper placing portion 6b formed of a rectangular recess formed one step lower on the surface thereof. The bottom surface of the paper placement portion 6b is a paper placement surface 6a. The sheet placement surface 6a is a plane extending in the printer width direction X and the front-rear direction Y.

  As can be seen from FIG. 5B, the paper tray 6 protrudes laterally from the side surface 5 a of the support base 5. Therefore, when viewed from the up-down direction Z of the printer, the majority of the paper placement surface 6a protrudes outward in the printer width direction X with respect to the end of the paper guide surface 13b.

  In this way, the sheet placement surface 6a is shifted outward with respect to the end of the sheet guide surface 13b. As a result, as shown in FIG. 5 (b), an angle θ (an insertion angle of the label paper 2) with respect to the paper guide surface 13b of the spanning portion of the label paper 2 spanned on the paper guide surface 13b is a loose angle. Become. When the angle θ is steep, the label paper 2 is largely bent at the paper guide surface 13b, so that an unreasonable force is applied to the label paper 2 and the conveyance load increases. By increasing the angle θ, such an increase in the transport load can be prevented or suppressed.

  Next, the position of the paper tray 6 in the front-rear direction Y of the printer will be described. As shown in FIG. 5A, one end in the sheet width direction (end on the front side of the printer) on the sheet placement surface 6a of the sheet tray 6 is defined by a step surface 6c. The step surface 6c coincides with a guide end surface 13c that defines one paper end in the tractor unit 13. The stepped surface 6c functions as a positioning portion in the width direction of the label paper 2 so that one end in the width direction of the label paper 2 is at the same position as one end in the width direction of the label paper 2 in the transport mechanism. Positioned. Therefore, it is possible to prevent a transport error such as a skew from occurring in the label paper 2.

  As described above, in this example, the label paper 2 mounted on the paper tray 6 is set at an optimal position in the three axis directions of X, Y, and Z. Therefore, in the state of the transport load similar to the case where the label paper 2 is supplied to the transport mechanism in the flat state, the paper is extended in the horizontal direction of the transport mechanism by pulling the label paper 2 upward from the paper tray 6 positioned below. It can be sent to the road 21. Further, conveyance errors such as skew of the label paper 2 can be reliably prevented. As a result, the label paper 2 can be transported with high accuracy, and the print quality can be maintained in a good state.

[Paper cover]
Next, FIG. 6 is a perspective view showing a state in which a paper cover is attached to the printer 1. FIG. 7 is a perspective view showing the paper cover 50, and shows an inner portion of the paper cover 50.

  Referring to these drawings, the paper cover 50 includes a top plate portion 51, a back plate portion 52 continuous to the rear end of the top plate portion 51, and both sides of the top plate portion 51 and the back plate portion 52. And left and right side plate portions 53 and 54 that are continuous with each other. The front and bottom surfaces of the cover 50 are open. Further, a front frame plate 55 is bridged between the lower end portions of the front surfaces of the left and right side plate portions 53 and 54. Further, a pair of guide pieces 56 and 57 are formed inside the cover 50 so as to hang from the rear end portion of the top plate portion 51 to the upper end portion of the back plate portion 52.

  The width of the paper cover 50 is larger than the width of the label paper 2 to be transported. The paper cover 50 is attached to the printer main body 3 such that the bottom portion surrounds three sides of the paper tray 6. The front frame plate 55 is placed on the paper tray 6 at a front portion of the paper tray 6 in the paper tray 6 (a portion on the support base 5 side).

  Further, the top plate portion 51 of the paper cover 50 covers the upper portion of the paper insertion opening 12 and the tractor unit 13 of the printer main body 3 in a state where it is attached to the printer main body 3. The back plate portion 52 covers a side portion between the tractor unit 13 and the paper tray 6. The side plate portions 53 and 54 cover the portion from the paper insertion opening 12 to the tractor unit 13 and the front and rear portions of the printer from the tractor unit 13 to the paper tray 6. The contour shapes of the front side edges of the side plate portions 53 and 54 have shapes corresponding to the respective side surface contour shapes of the printer main body 3, the tractor unit 13, and the support base 5 with which they abut.

  In this manner, the label paper 2 that is routed in an exposed state between the paper tray 6 and the paper insertion opening 12 is covered by the paper cover 50 as a whole. Accordingly, it is possible to prevent the operator from touching the exposed portion of the label paper 2 and causing such troubles as folding and tearing to the portion. Further, it is possible to prevent foreign matter from adhering to the surface of the label paper 2 and the label from becoming dirty.

  Next, as shown in FIG. 7, the pair of guide pieces 56 and 57 provided on the inner surface portion 52 a of the back plate portion 52 of the paper cover 50 are arranged in parallel at an interval narrower than the width of the label paper 2. . Further, the guide pieces 56 and 57 are arranged at a height position facing the paper guide surface 13b of the tractor unit 13. The guide pieces 56 and 57 have a substantially crescent-shaped outline, and the end surfaces facing the paper guide surface 13b are concave arc-shaped paper guide end surfaces 56a and 57a.

  FIG. 8 is an explanatory diagram showing the functions of the paper guide end faces 56a and 57a. When the label paper 2 is back-fed by the transport mechanism, the portion of the label paper 2 that is stretched over the paper guide surface 13b is horizontal from the paper guide surface 13b to the upstream side in the transport direction (printer width direction X). Sent out. As a result, the portion of the label paper 2 is fed toward the inner surface portion 50a of the paper cover 50 facing the paper guide surface 13b, hits at a right angle to the inner surface portion 50a, or at an angle close thereto, and is folded. There is a risk of damage.

  In this example, a pair of guide pieces 56 and 57 are formed. The back-fed portion of the label paper 2 hits the paper guide end surfaces 56a and 57a of the pair of guide pieces 56 and 57. Since these paper guide end surfaces 56a and 57a are concave arc-shaped end surfaces, the portion of the label paper 2 is smoothly guided downward along the paper guide end surfaces 56a and 57a. Therefore, it is possible to prevent the label paper 2 from being folded, damaged, or jammed during back feed.

  In particular, in the case of the label paper 2 having a strong stiffness, when the paper portion 2B of the last label paper 2 is back-fed, as shown in FIG. 50a is easy to break and break. By arranging the pair of guide pieces 56 and 57, it is possible to reliably prevent the rear end portion of the paper portion 2B from being broken or damaged.

  The paper cover 50 is not limited to the shape shown in the figure. Any shape that can cover the portion of the label paper 2 exposed between the paper tray 6 and the paper insertion opening 12 may be used. The guide pieces 56 and 57 are not limited to those having the shape and structure shown in the drawing as long as they can smoothly guide the label sheet 2. For example, the entire inner surface portion 52a can be a concave arc-shaped guide surface. It is also possible to arrange three or more guide pieces.

1 .. Inkjet printer, 2 .... Label paper, 2A ... Paper stack, 2B ... Paper part, 2a ... Mount, 2b ... Label, 2c ... Sprocket hole, 2d ... Perforation, ... Printer main unit, 4. LCD panel, 4a ... Display screen, 4b, 4c ... Arms, 5. Support base, 5a ... Side, 6. Paper tray, 6a ... Paper loading surface, 6b ..Paper placement section, 6c ..Step surface, 7 ..Exterior case, 8 ..Front, 12 ..Paper insertion slot, 13 ..Tractor unit, 13a ..Unit case, 13b ..Paper guide surface, 14 .... Paper discharge port, 15 .... Discharge tray, 16,17 ... Open / close lid, 18 .... Insertion port, 21 ... Paper transport path, 22 .... Print head, 23 ... Platen, 24 ... Head carriage 24a ... Carriage drive mechanism 25 ····················································································································· Pin, 32 ... Tractor drive motor, 33 ... Drive force transmission mechanism, 50 ... Paper cover, 51 ... Top plate part, 52 ... Back plate part, 53, 54 ... Side plate part, 55 ... Horizontal frame Plate, 56, 57 ... Guide piece, 56a, 57a ... Paper guide end face, L1 ... Length of label paper spanned along the printer vertical direction, L2 ... Paper length between creases, H1 ... Paper The distance from the tray to the paper guide surface, H2 ... the height of the support base, X ... the printer width direction, Y ... the printer longitudinal direction, Z ... the printer vertical direction

Claims (6)

The printer body,
A leg for mounting the printer body;
A paper tray on which fanfold paper is placed;
Have
The printer body includes a transport mechanism that transports the fanfold paper, and a paper guide section that guides the fanfold paper pulled out from the paper tray toward the transport mechanism,
The paper tray is positioned below the printer guide by a predetermined distance with respect to the paper guide portion,
When the length of the fanfold paper spanned between the uppermost surface of the fanfold paper placed on the paper tray and the paper guide portion is along the vertical direction of the printer, the fanfold paper The printer is characterized in that the predetermined distance is set to be at least twice the length between the creases.   The printer according to claim 1, wherein the paper tray protrudes outward from the leg portion in a direction orthogonal to the vertical direction of the printer.   The printer according to claim 1, wherein the paper tray includes a positioning unit that defines a position in the width direction of the fanfold paper.   4. The printer according to claim 1, further comprising a paper cover that covers at least a portion of the fanfold paper positioned between the paper tray and the paper guide portion. 5.   The printer according to claim 4, wherein the paper cover includes a guide for guiding the fanfold paper at least at a portion facing the paper guide portion.   The printer according to claim 1, wherein the fanfold paper is a label paper in which a label is attached to a mount.

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