JP2006232470A - Recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent setting error of continuous paper to a tractor. <P>SOLUTION: In a dot impact printer for recording an image on the continuous paper by projecting a recording wire from a recording head 30 having the recording wire toward the continuous paper conveyed by a rear tractor 271, a restriction member 70 for restricting a distal end position of the continuous paper at setting of the continuous paper is provided near the rear tractor 271. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording apparatus including a tractor for conveying continuous paper, and more particularly to a technique for preventing a setting error of continuous paper on the tractor.

2. Description of the Related Art Conventionally, a recording head for ejecting a recording wire and a platen disposed to face the recording head are provided, and the recording head strikes a recording paper supplied onto the platen via an ink ribbon to the recording paper. Recording apparatuses such as dot impact printers that record images such as characters and pictures are known.
This type of recording apparatus is known to include a tractor that conveys continuous paper such as a continuous form and enables recording on continuous paper. In general, a tractor is provided with a plurality of pins at equal intervals with sprocket holes provided at both ends of continuous paper, and these pins are inserted into the holes of the continuous paper and driven to convey the continuous paper. Further, the continuous paper transported by the tractor is transported between the recording head and the platen by a sprocket wheel driven in synchronization with the tractor (see, for example, Patent Document 1).
JP-A-8-324848 (FIG. 1)

However, when the tractor is provided on the back surface (rear) of the recording apparatus, the user sets continuous paper on the tractor from the front side of the recording apparatus, and it is difficult to visually recognize the tractor and the sprocket wheel during continuous paper setting. Therefore, when the user sets the continuous paper, there is a problem that a setting error occurs in which the leading end of the continuous paper is pushed to the back of the sprocket wheel. When a setting error occurs in this way, both ends of the leading edge of the continuous paper are not accurately aligned in the width direction of the continuous paper, and there is a high possibility that paper jam will occur during conveyance.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a recording apparatus that can prevent a setting error of continuous paper to a tractor.

To achieve the above object, the present invention provides a recording apparatus for recording an image on the continuous paper by projecting the recording wire from a recording head having a recording wire toward the continuous paper conveyed by a tractor. A restriction member is provided in the vicinity of the tractor for restricting the leading edge position of the continuous paper when the continuous paper is set.
According to this recording apparatus, since a regulating member that regulates the position of the leading edge of the continuous paper when the continuous paper is set is provided in the vicinity of the tractor, even when the user sets the paper by hand when setting the continuous paper to the tractor, Since the leading edge of the continuous paper comes into contact with the regulating member, the continuous paper is not pushed in all the way, and the user can set the continuous paper on the tractor by contacting the leading edge of the continuous paper with the regulating member. It becomes easy to grasp. Thereby, setting errors of continuous paper to the tractor are prevented, and occurrence of paper jam at the time of paper feeding can be prevented in advance.

Here, in the recording apparatus, it is preferable that the restricting member is disposed so as to face the conveyance surface of the tractor.
According to this desirable configuration, since the restricting member is located above the tractor, when the leading end of the continuous paper comes into contact with the restricting member, the user can remove the continuous paper as it is and is provided at both ends of the continuous paper. Sprocket holes can be easily inserted into pins on the tractor transport surface.

The recording apparatus may further include a transport mechanism that transports the continuous paper to the recording head, and a sprocket wheel that transports the continuous paper transported by the tractor toward the transport mechanism. It is also desirable that the regulating member is provided between the pin of the tractor that is removed from the hole of the continuous paper and the pin of the sprocket wheel that is inserted into the hole.
According to this desirable configuration, the sprocket holes at the earliest positions on both sides of the continuous paper are inserted into the pins closest to the position where the leading edge of the continuous paper is in contact with the regulating member. Can be accurately aligned. Thereby, generation | occurrence | production of paper jam can be prevented more reliably.

The recording apparatus may further include a sheet presser disposed opposite to the tractor, wherein the gap between the restriction member and the tractor is substantially the same as the gap between the tractor and the sheet presser. desirable.
According to this desirable configuration, when the continuous paper is transported, the leading end of the continuous paper is not easily caught by the lower end of the regulating member, so that the transport is performed smoothly and the occurrence of paper jam can be prevented.

In the recording apparatus, it is also preferable that the restricting member has a color different from that of the tractor.
According to this desirable configuration, it becomes easy to grasp the position of the regulating member, and when the user sets the continuous paper while visually checking the tractor, the setting position of the continuous paper on the tractor can be easily understood more accurately.
In the recording apparatus, the regulating member may be configured integrally with a sprocket guide for guiding the continuous paper conveyed by the sprocket wheel or the tractor.

  According to the present invention, since the regulating member that regulates the leading end position of the continuous paper when the continuous paper is set is provided in the vicinity of the tractor, the setting error of the continuous paper to the tractor is prevented.

Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, a case where the present invention is applied to a dot impact printer which is an aspect of a recording apparatus will be exemplified.
FIG. 1 is an external perspective view of the dot impact printer 10, and FIG. 2 is a rear view of the dot impact printer 10. 3 is a perspective view showing the configuration of the recording mechanism unit 20 built in the dot impact printer 10, and FIG. 4 is a cross-sectional view of the recording mechanism unit 20 taken along the line AA 'in FIG.
The dot impact printer 10 includes a recording head 30 having a plurality of recording wires (not shown). The recording head 30 protrudes from the recording head 30 and includes an image including characters on the recording surface of the recording paper via an ink ribbon. Is to be recorded. In the following description, a case where continuous paper is used as recording paper will be described.

As shown in FIG. 1, the dot impact printer 10 has a substantially box-shaped exterior made up of an upper case 11 and a lower case 12, and a recording mechanism section 20 (FIG. 3) is built in the exterior.
An upper surface cover 13 is disposed on the front surface of the upper case 11 and is opened upward when a ribbon cartridge (not shown) described later is mounted on the recording mechanism unit 20. A front paper feed port 111 for supplying continuous paper to the recording mechanism unit 20 is opened at the lower front surface of the upper case 11. A front cover 15 that opens forward is disposed above the front paper feed port 111 so that continuous paper can be set in the recording mechanism unit 20 by opening the front cover 15.

As shown in FIGS. 1 and 2, the upper case 11 is provided with an upper back cover 14 that is continuous from the rear of the upper surface of the upper case 11 to the back. The upper back cover 14 is opened toward the rear of the upper case 11 during maintenance of the recording mechanism unit 20 described later. A paper discharge port 113 through which the continuous paper after recording is discharged is opened on the back surface of the upper back cover 14.
Further, on the back surface of the upper case 11, a rear paper feed port 112 for supplying continuous paper to the recording mechanism unit 20 is opened below the upper back cover 14.
As shown in FIG. 2, an I / F cover 16 is disposed at the lower back of the lower case 12. A connector (not shown) for connecting the dot impact printer 10 to various devices such as a computer is disposed inside the I / F cover 16. The I / F cover 16 is opened and a cable is connected to the connector. Can be connected.

  As shown in FIG. 1, an operation panel 121 is disposed on the upper front surface of the upper case 11. The operation panel 121 is provided with switches for various settings related to the operation of the dot impact printer 10, an indicator for notifying the operation state, a liquid crystal display panel, and the like. At the front corner of the lower case 12, a switch 122 for turning on / off the power source of the dot impact printer 10 is disposed. As shown in FIG. 2, a power connector 123 for supplying power to the dot impact printer 10 is disposed on the back surface of the lower case 12.

Next, the configuration of the recording mechanism unit 20 will be described.
As shown in FIGS. 3 and 4, the recording mechanism unit 20 includes a right side frame 21, a left side frame 22, a front frame 23, and a base frame 24, and the main body frame is constituted by these frames 21, 22, 23, and 34. Composed. The main body frame includes a recording head 30, a carriage 28 on which the recording head 30 is placed, a front paper feeding mechanism 26 that supplies continuous paper to the recording head 30 from the front side, and a recording head from the rear side. A rear paper feeding mechanism 27 for supplying continuous paper to the paper 30; a transport mechanism 34 for transporting the continuous paper supplied by the front paper feeding mechanism 26 and the rear paper feeding mechanism 27 toward the recording head 30; Is provided with a paper discharge mechanism 35 for discharging the recorded continuous paper and a ribbon drive unit 37 for driving a ribbon cartridge (not shown).

The right side frame 21 and the left side frame 22 are erected so as to face each other at both ends of the recording mechanism unit 20, and the front frame 23 and the base frame 24 are interposed between the right side frame 21 and the left side frame 22. It is bridged. The front frame 23 is located on the front side of the recording mechanism unit 20, and the base frame 24 is located on the rear side below the recording mechanism unit 20.
Rollers 25 are respectively disposed at the lower front portions of the right side frame 21 and the left side frame 22, and the recording mechanism unit 20 is supported by the lower case 12 via these two rollers 25. In addition, the roller 25 is configured to be rotatable, and by tilting the recording mechanism unit 20 obliquely upward with the roller 25 as a fulcrum, maintenance of a control base (not shown) disposed below the recording mechanism unit 20 is performed. Yes.

The front paper feed mechanism 26 includes a front paper feed table 261 disposed in the lower front portion of the recording mechanism unit 20, a tractor support shaft 263, which extends in parallel between the right side frame 21 and the left side frame 22, and A tractor drive shaft 264, a pair of left and right front tractors 262, and a front tractor cover 266 attached integrally to each front tractor 262 are provided.
The front paper feed tray 261 has a surface extending obliquely upward from substantially the lower end of the front surface of the recording mechanism unit 20, and supports continuous paper inserted from the front paper feed port 111 (FIG. 1) from below. To do. A tractor support shaft 263 and a tractor drive shaft 264 are disposed above the front sheet feed table 261, and a pair of left and right front tractors 262 are inserted through the tractor support shaft 263 and the tractor drive shaft 264. Each of the front tractors 262 has a flat surface portion, and the flat surface portion is arranged so as to be continuous with the surface of the front paper feed table 261.

The front tractor 262 includes a tractor belt (not shown) having a plurality of pins 265. The tractor belt is hung on the tractor support shaft 263 and the tractor drive shaft 264. The tractor support shaft 263 is rotatably arranged, while the tractor drive shaft 264 is driven by a transport motor to rotate. The tractor belt rotates as the tractor drive shaft 264 rotates, and moves the pin 265 from below to above. The pins 265 are exposed from the flat surface portion of the front tractor 262 and engage with sprocket holes formed at both ends in the width direction of the continuous paper. When the pin 265 is moved by the rotation of the tractor belt, the continuous paper is conveyed upward, that is, toward the recording head 30 side.
The front tractor 262 is provided with a front tractor cover 266 that covers the pin 265 from above. By placing the continuous paper on the front tractor 262 and covering the front tractor cover 266, the state where the sprocket hole of the continuous paper is engaged with the pin 265 is maintained.

The rear paper feed mechanism 27 is integrated with the tractor support shaft 272 and the tractor drive shaft 273 spanned between the right side frame 21 and the left side frame 22, a pair of left and right rear tractors 271, and each rear tractor 271. A rear tractor cover 275, a rear tractor 271 and a sprocket wheel 276 are provided.
As shown in FIG. 4, the base frame 24 includes a paper support 242 that extends so as to be continuous with the transport surface (upper surface) 271 </ b> A of the rear tractor 271 and protrudes from the rear paper feed port 112 of the dot impact printer 10. The continuous paper fed to the rear paper feed port 112 is supported by the paper support unit 242 and guided to the transport surface 271A of the rear tractor 271.
The tractor support shaft 272 and the tractor drive shaft 273 are disposed substantially parallel to each other, and two rear tractors 271 are inserted through the tractor support shaft 272 and the tractor drive shaft 273.

  The rear tractor 271 includes a tractor belt (not shown) having a plurality of pins 274 arranged at equal intervals with sprocket holes (holes) provided at both ends of the continuous paper. The tractor belt is connected to the tractor support shaft 272 and the tractor. It spans the drive shaft 273. The pin 274 of the tractor belt is exposed on the conveying surface 271A of the rear tractor 271 and is inserted into a sprocket hole (not shown) of continuous paper. When the tractor drive shaft 273 is driven and the tractor belt rotates, the continuous paper is conveyed by the rotation of the tractor belt.

  A sprocket wheel 276 is provided downstream of the rear tractor 271 in the continuous paper conveyance direction. The sprocket wheel 276 is disposed below the transport mechanism 34 described later, and transports the continuous paper transported by the rear tractor 271 toward the transport mechanism 34. Specifically, a plurality of pins 277 arranged at equal intervals with the sprocket holes are provided on the peripheral surface of the sprocket wheel 276, and these pins 277 are inserted into the sprocket holes of the continuous paper conveyed from the rear tractor 271. Is done. Then, the sprocket wheel 276 and the rear tractor 271 are driven in synchronization with each other, and the continuous paper is transported toward the transport mechanism 34. At this time, the sprocket wheel 276 and the rear tractor 271 are driven by a conveyance motor (not shown) for each line feed during printing, and convey continuous paper.

  The rear tractor 271 is provided with a rear tractor cover 275 as a sheet presser that covers the transport surface 271A from above so as to be freely opened and closed. That is, when the continuous paper is set on the rear tractor 271, the rear tractor cover 275 is opened to expose the conveying surface 271A, and the sprocket hole of the continuous paper is inserted into the pin 277, and then the rear tractor cover 275 is closed. Thus, the upper surface position of the continuous paper is regulated by the rear tractor cover 275, and the sprocket hole is prevented from being detached from the pin 274.

The transport mechanism 34 is disposed opposite to each other and transports the continuous paper toward the recording head 30. The first transport roller 341 and the second transport roller 342, and the second transport roller shaft 343 that pivotally supports the second transport roller 342. And a platen 31 disposed to face the recording head 30.
The first transport roller 341 is disposed above the rear paper feed drum 276 and abuts against the back surface of the continuous paper. A second transport roller shaft 343 is disposed at a position facing the first transport roller 341 across the continuous sheet. The second transport roller shaft 343 is rotatably spanned between the right side frame 21 and the left side frame 22, and a plurality of second transport rollers 342 are inserted therethrough. The second conveying roller shaft 343 can be moved within a predetermined range by the operation of the roller opening / closing motor. When the roller opening / closing motor opens, the second conveying roller 342 is separated from the first conveying roller 341, and the roller When the opening / closing motor performs a closing operation, the second conveyance roller 342 is urged toward the first conveyance roller 341.
The roller opening / closing motor performs a closing operation so that the continuous paper is sandwiched between the first conveyance roller 341 and the second conveyance roller 342. The first transport roller 341 is driven by the transport motor and the drive wheel train 33, and the first transport roller 341 rotates so that the continuous paper sandwiched between the first transport roller 341 and the second transport roller 342 is moved upward. That is, it is conveyed to the recording head 30 side.

The carriage 28 is inserted through a carriage shaft 29 spanned between the right side frame 21 and the left side frame 22. A belt is mounted on the carriage 28 between a carriage drive motor 32 and a carriage drive pulley (not shown). When the belt is driven by the operation of the carriage drive motor 32 and the carriage drive pulley, the carriage 28 is moved along the carriage shaft 29. Move.
A recording head 30 is mounted on the carriage 28. The recording head 30 faces the recording surface of the continuous paper above the transport mechanism 34, and an ink ribbon drawn from a ribbon cartridge described later is disposed between the recording surface of the continuous paper and the recording head 30. . By ejecting a recording wire (not shown) from the recording head 30 toward the recording surface of the continuous paper, ink adheres to the recording surface of the continuous paper, and an image including characters is recorded.

  At a position facing the recording head 30, a platen 31 is disposed on the back side of the continuous paper. The platen 31 is a flat platen in which a portion in contact with the continuous paper is formed in a flat shape, and supports the protruding output of the recording wire protruding from the recording head 30 in this plane. The platen 31 is configured to be movable in a direction perpendicular to the continuous paper, and is urged toward the continuous paper by a spring (not shown).

  The paper discharge mechanism 35 includes a first paper discharge roller 351 that contacts the continuous paper recorded by the recording head 30 from the back side, a movable frame 353 disposed from the right side frame 21 to the left side frame 22, and a movable frame 353. , A movable shaft 354 and a unit support shaft 355, a spring 356 assembled across the movable frame 353 and the left side frame 22, a plurality of paper discharge roller units 357 fixed to the movable frame 353, and a paper discharge roller And a second paper discharge roller 358 assembled in the unit 357.

The first paper discharge roller 351 is in contact with the back surface of the continuous paper above the recording head 30 and is driven to rotate by the conveyance motor and the drive wheel train 33. A movable shaft 354 and a unit support shaft 355 are disposed at a position facing the first paper discharge roller 351 via the continuous paper. The movable shaft 354 and the unit support shaft 355 are spanned between the right side frame 21 and the left side frame 22, and the unit support shaft 355 is fixed to the right side frame 21 and the left side frame 22, while the movable shaft 354. Is movable so as to draw a circle around the unit support shaft 355. The movable frame 353 is fixed to the movable shaft 354 and the unit support shaft 355 and is movable together with the movable shaft 354.
A plurality of paper discharge roller units 357 arranged in the axial direction of the movable shaft 354 and the unit support shaft 355 are attached to the movable frame 353. A second paper discharge roller 358 is assembled to each of the paper discharge roller units 357 at positions separated from the unit support shaft 355.

  The movable frame 353 is urged in a direction approaching the first paper discharge roller 351 about the unit support shaft 355 by a spring 356 spanned between the left side frame 22. Therefore, the second paper discharge roller 358 included in the paper discharge roller unit 357 is urged in a direction in which the second paper discharge roller 358 is pressed against the first paper discharge roller 351, and the continuous paper is fed to the first paper discharge roller 351 and the second paper by this urging force. It is sandwiched between the paper discharge rollers 358. Further, the movable shaft 354 is moved against the biasing force of the spring 356 by the operation of the roller opening / closing motor. That is, when the roller opening / closing motor opens, the movable shaft 354 moves against the urging force of the spring 356 by the driving force of the roller opening / closing motor, and the second discharge roller 358 is moved from the first discharge roller 351. Separate. When the roller opening / closing motor releases the driving force (closing operation), the second paper discharge roller 358 is pressed against the first paper discharge roller 351 by the biasing force of the spring 356.

  Incidentally, as described above, the dot impact printer 10 according to the present embodiment includes the rear paper feeding mechanism 27 and is configured to be capable of feeding continuous paper from the rear side. Even when continuous paper is set from the front side (front side) of the paper, it is possible to prevent setting errors of the continuous paper. Hereinafter, this configuration will be described in detail.

FIG. 5 is a view showing the rear paper feed mechanism 27, and FIG. 6 is a cross-sectional view of the rear paper feed mechanism 27. In FIG. 5, each of the rear tractor 271 and the sprocket wheel 276 is shown only in one of the left and right pairs, but the configuration is the same for both the left and right pairs (see, for example, FIG. 8).
As shown in these drawings, in the present embodiment, when the continuous paper is set, a regulating member 70 for regulating the leading end position of the continuous paper is disposed in the vicinity of the rear tractor 271. As shown in FIG. 7, the regulating member 70 is disposed below the sprocket wheel 276 and is integrally formed with a sprocket guide 276 </ b> A that guides continuous paper conveyed by the sprocket wheel 276.

Specifically, the sprocket guide 276A is curved along the peripheral surface of the sprocket wheel 276, and the guide unit 80 that directs the continuous paper conveyed from the rear tractor 271 toward the conveyance mechanism 34, and the sprocket wheel 271. A side wall 81 in which an insertion hole 82 for a rotating shaft (not shown) is formed, and an insertion port 83 into which the tip of the rear tractor 271 is inserted. A latching claw 85 is provided in the insertion port 83, and a latching groove (not shown) formed in the distal end portion of the rear tractor 271 when the distal end portion of the rear tractor 271 is inserted into the insertion port 83. ) And the rear tractor 271 is detachably attached to the sprocket guide 276A.
The sprocket wheel 276 is disposed above the guide portion 80, supported by a rotation shaft (not shown) inserted into the insertion hole 82 of the side wall 81, and is driven to rotate by the rotation of the rotation shaft.

  Further, the regulating member 70 is formed by bending the side wall 81 into an L shape, and the regulating member 70 is provided on the front side of the guide portion 80 and the sprocket wheel 271, that is, on the side where the rear tractor 271 is disposed. As shown in FIGS. 6 and 7, the restricting member 70 includes restricting pieces 70 </ b> A and 70 </ b> B in which a plate-like body arranged on the front side of the sprocket wheel 271 is cut out in a U shape, and restricting pieces 70 </ b> A and 70 </ b> B. And a hook preventing piece 70C which is bent in an L shape on the guide portion 80 (sprocket wheel 276) side, and the leading end position of the continuous paper is regulated by the regulating pieces 70A and 70B when the continuous paper is set. . In the present embodiment, the restricting member 70 is further colored in a color different from that of the rear tractor 271 so that the distinguishability of the restricting pieces 70A and 70B is improved. The U-shaped groove 84 formed between the regulating pieces 70A and 70B is formed to avoid contact with the pin 277 of the sprocket wheel 271.

  When the rear tractor 271 is attached to the sprocket guide 276A, as shown in FIG. 6, the restricting member 70 is disposed so as to face the rear tractor 271 and is positioned above the conveying surface 271A of the rear tractor 271. It is located between the tractor cover (paper presser) 275 and the sprocket wheel 276. More specifically, in the present embodiment, the regulating member 70 includes a pin 274 of the rear tractor 271 that is disengaged from the sprocket hole of the continuous paper and a pin 277 of the sprocket wheel 276 that is inserted into the hole when the continuous paper is conveyed. It is designed to be in between.

  At this time, in the regulating member 70, the distance between the hook preventing piece 70C, which is the lower end thereof, and the conveying surface 271A of the rear tractor 271 is approximately the same as the distance between the rear tractor cover 275 and the conveying surface 271A of the rear tractor 271. It is arranged to become. Accordingly, when the continuous paper is transported, the continuous paper, in particular, the leading end of the continuous paper is hardly caught by the lower end of the regulating member 70. Further, since the hook preventing piece 70 </ b> C of the regulating member 70 is bent toward the sprocket wheel 276, the continuous paper is smoothly guided toward the sprocket wheel 276.

  Under the above configuration, when the user sets continuous paper on the rear tractor 271, first, the rear tractor cover 275 is opened to expose the conveying surface 271 </ b> A of the rear tractor 271. Then, the leading end of the continuous paper is inserted into the inside until it comes into contact with the regulating member 70, and the sprocket hole at the earliest position of the continuous paper is inserted into the pin 274 closest to the contacted position. Then, the remaining sprocket holes are sequentially inserted into the other pins 274 of the rear tractor 271 and the rear tractor cover 275 is closed.

  As described above, according to the present embodiment, the regulating member 70 that regulates the position of the leading edge of the continuous paper when the continuous paper is set is provided in the vicinity of the rear tractor 271. Even when set by groping, the leading edge of the continuous paper abuts against the regulating member 70 so that the continuous paper is not pushed all the way in. The user can also contact the leading edge of the continuous paper with the regulating member 70. This makes it easier to understand the setting position of the continuous paper on the rear tractor 271. As a result, it is possible to prevent the occurrence of paper jam at the time of paper feeding.

  In addition, according to the present embodiment, since the regulating member 70 is disposed opposite to the conveying surface 271A of the rear tractor 271 so that the regulating member 70 is positioned above the rear tractor 271, the leading edge of the continuous paper is the regulating member. When the user lowers the continuous paper as it is in contact with 70, the sprocket hole of the continuous paper can be easily inserted into the pin 274 exposed on the conveying surface 271A of the rear tractor 271.

  Further, when the continuous paper is transported, the regulating member 70 is provided between the pin 274 of the rear tractor 271 that is removed from the sprocket hole of the continuous paper and the pin 277 of the sprocket wheel 276 inserted into the sprocket hole. By inserting each of the earliest sprocket holes on both sides of the paper into the pin 274 closest to the position where the leading edge of the continuous paper abuts against the regulating member 70, both ends of the continuous paper can be accurately aligned. The occurrence of paper jam can be more reliably prevented.

  Further, according to the present embodiment, the regulating member 70 is arranged such that the distance between the rear tractor 271 and the conveying surface 271A is substantially the same as the distance between the rear tractor cover 275 and the rear tractor 271 conveying surface 271A. As a result, the leading edge of the continuous paper is less likely to be caught by the lower end of the regulating member 70 during conveyance, and can be smoothly conveyed toward the sprocket wheel 276.

  In the present embodiment, since the regulating member 70 is colored in a color different from that of the rear tractor 271, it is easy to grasp the position of the regulating member 70, and the user can check the rear tractor 271 while visually checking the continuous paper. In the case of setting, the setting position of the continuous paper to the rear tractor 271 can be understood more accurately.

The above-described embodiment shows one embodiment of the present invention, and can be arbitrarily modified within the scope of the present invention.
For example, in the above-described embodiment, the case where the regulating member 70 is configured integrally with the sprocket guide 276A is illustrated, but the present invention is not limited thereto, and may be configured integrally with the rear tractor 271. Even in this configuration, it is desirable that the regulating member 70 is colored in a different color from the rear tractor 271.
Further, for example, in the above-described embodiment, the configuration in which the restriction member 70 is provided only in the rear tractor 271 is illustrated, but the configuration is not limited thereto, and the configuration may be provided in the front tractor 262 as well.

Further, in addition to the configuration of the above-described embodiment, the continuous paper setting position on the rear tractor 271 may be easily grasped as follows. That is, as shown in FIGS. 8 and 9, the dot impact printer 10 includes an upper back cover 14 attached to the upper case 11 so as to be openable and closable rearward, and when the back cover 14 is opened, When the rear paper feed mechanism 27 having the rear tractor 271 is accessible from the exposed rear opening 400, and the inner surface 14A of the rear cover 14A is visible from the front side, the inner surface of the rear cover 14 It is good also as a structure which stuck the mirror 500 which projects the rear tractor 271 to 14A.
According to this configuration, when the user sets the continuous paper on the rear tractor 271 from the front side of the dot impact printer 10, the hand is displayed on the mirror 500. It becomes possible to set the tractor 271 easily and reliably.

1 is an external perspective view of a dot impact printer according to the present invention. It is a rear view of a dot impact printer. It is a perspective view which shows the structure of a recording mechanism part. It is sectional drawing of a recording mechanism part. It is a perspective view which shows the structure of a rear paper feeding mechanism. It is sectional drawing which shows the structure of a rear paper feeding mechanism. It is a perspective view which shows the structure of the sprocket guide provided with the control member. It is a perspective view of the dot impact printer when the back cover is opened. It is a side view of the dot impact printer which concerns on the modification of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Dot impact printer, 14 ... Back cover, 20 ... Recording mechanism part, 27 ... Rear paper feeding mechanism, 30 ... Recording head, 70 ... Restriction member, 70A, 70B ..Regulating piece, 70C ... Hook preventing piece, 271 ... Rear tractor, 274, 277 ... Pin, 275 ... Rear tractor cover, 276 ... Sprocket wheel, 276A ... Sprocket guide, 500: Mirror.

Claims (6)

In a recording apparatus for recording an image on the continuous paper by projecting the recording wire from a recording head having a recording wire toward the continuous paper conveyed by a tractor,
The recording apparatus according to claim 1, further comprising: a regulating member that regulates a leading end position of the continuous paper when the continuous paper is set in the vicinity of the tractor. The recording apparatus according to claim 1, wherein the restricting member is disposed to face a conveyance surface of the tractor. A transport mechanism for transporting continuous paper to the recording head;
A sprocket wheel that conveys the continuous paper conveyed by the tractor toward the conveyance mechanism;
3. The restriction member is provided between the pin of the tractor that is removed from the hole of the continuous paper and the pin of the sprocket wheel that is inserted into the hole when the continuous paper is conveyed. The recording device described. A paper presser disposed opposite to the tractor;
The recording apparatus according to claim 1, wherein a gap between the regulating member and the tractor is substantially the same as a gap between the tractor and the sheet presser.   The recording apparatus according to claim 1, wherein the regulating member has a color different from that of the tractor. 6. The recording apparatus according to claim 1, wherein the regulating member is configured integrally with a sprocket guide for guiding the continuous paper conveyed by the sprocket wheel or the tractor.

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