JP2011143601A - Inkjet printer with auto cutter and method for controlling the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inkjet printer with an auto cutter in which recording paper does not interfere with a nozzle face of an inkjet head because the recording paper is raised from a platen during cutting and a method for controlling the same. <P>SOLUTION: In the printer 1 for roll paper with the auto cutter, the inkjet head 20 is evacuated (ST6) to either one of first and second evacuation positions (HP, AP) near the printing completion position along with the conveying action (ST5) for positioning the recording paper 3a at a cutting position B after printing. The recording paper 3 does not come into contact with the nozzle face 20a of the inkjet head 20 even though the recording paper 3a is raised from the platen 13 by the recording paper 3a being pulled by a movable edge 32 moving from the platen 13 side to the inkjet head 20 side when cutting the recording paper (ST7). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an inkjet printer with an auto cutter that performs printing on a long recording paper such as roll paper, and cuts a printed portion by an auto cutter after printing and issues it as a receipt of a predetermined length. More specifically, the present invention relates to an inkjet printer with an autocutter and a control method therefor in which recording paper cut by an autocutter does not interfere with the nozzle surface of a print head.

  In the ink jet printer, the recording paper is conveyed along the platen in a state of facing a narrow gap with respect to the nozzle surface of the ink jet head. When the recording paper rises from the platen and interferes with the nozzle surface, the recording paper becomes dirty with ink, paper dust adheres to the nozzle surface from the recording paper side, and the nozzle clogs. The recording paper hits the nozzle surface and the ink meniscus. Such as being destroyed. In order to prevent the recording paper from floating from the platen, Patent Document 1 discloses an image recording apparatus provided with a mechanism for conveying the recording paper while sucking the recording paper to the platen.

  In addition, as an auto cutter for cutting a printed portion of a long recording paper such as roll paper, a scissors type in which a movable blade rotates with respect to a fixed blade described in Patent Document 2, Known is a saddle type with two movable blades described in Patent Document 3, and a type in which the movable blade linearly reciprocates with respect to a fixed blade as described in Patent Document 4. ing. In such an auto cutter, generally, a fixed blade and a movable blade are disposed opposite to each other with a recording paper conveyance path interposed therebetween at a position adjacent to the inkjet head on the downstream side in the recording paper conveyance direction.

JP 2006-176243 A JP 09-19890 A JP-A-11-240216 JP 05-337875 A

  Here, when the recording paper conveyance path is sandwiched, the fixed blade is disposed on the same side as the inkjet head, and the movable blade is disposed on the platen side facing the inkjet head, the movable blade approaches the inkjet head side. Cut the recording paper while moving in the direction. In this case, the recording paper may also be dragged by the movable blade and lifted from the platen, moving in the direction approaching the inkjet head, and interfering with the nozzle surface.

  Conventionally, the problem that the recording paper is dragged by such a movable blade and is lifted off the platen and interferes with the nozzle surface has not been recognized. That is, the conventional inkjet printer with an auto cutter employs a configuration in which the movable blade is disposed on the inkjet head side, and such a problem does not occur.

  Therefore, it is conceivable to arrange a platen having a suction mechanism as described in Patent Document 1. A method of newly adding a mechanism such as a suction mechanism may not be employed due to the layout of the apparatus, etc., leading to high costs and increased dimensions. In particular, roll paper printers used for issuing tickets, receipts, and the like are not effective measures for such printers because they are required to be smaller and less expensive.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an ink jet printer having an auto cutter in which a movable blade is disposed on the opposite side of the ink jet head across a recording paper conveyance path, and the recording paper can be moved when cutting the recording paper without adding a new mechanism. Therefore, it is possible to prevent the ink from floating from the platen and interfering with the nozzle surface of the inkjet head.

In order to solve the above problems, the inkjet printer with an auto cutter of the present invention is
A transport mechanism for transporting the recording paper along the recording paper transport path;
An inkjet head for printing on the recording paper while moving in the width direction of the recording paper in the recording paper conveyance path;
An auto cutter disposed at a position adjacent to the inkjet head in the recording paper conveyance direction;
Control means for controlling recording paper transport by the transport mechanism, movement and printing of the inkjet head and recording paper cutting by the auto cutter,
The auto cutter includes a fixed blade disposed on the same side as the inkjet head across the recording paper conveyance path, and a movable blade disposed on a position opposite to the inkjet head. When the blade moves toward the fixed blade, the portion of the recording paper located between them is cut in the width direction,
The control means is characterized in that before the recording paper cutting by the auto cutter is started, the ink-jet head is moved to a retreat position that is out of the recording paper on the recording paper conveyance path in the width direction.

  In the present invention, at the point of time when the recording paper is cut by the auto cutter, the ink jet head is moved to the retracted position deviated from the width direction of the recording paper, so that the recording paper is pulled to the ink jet head side by being dragged by the movable blade. Even if it moves, the recording paper does not hit the nozzle surface of the inkjet head.

  Here, if an operation for moving the inkjet head to the retracted position is added, the throughput of the operation from printing to cutting of the recording paper is reduced accordingly. In order to avoid this, when the printing on the recording paper is completed, the control means transports the recording paper and positions it at a cutting position by the auto cutter, and moves the inkjet head to the retracted position. It is desirable that the evacuation operation to be performed simultaneously.

  Further, the ink jet head can be moved to either the first retracted position on one side in the width direction of the recording paper transport path or the second retracted position on the other side. Also in this case, in order to avoid a decrease in the throughput of the operation, the control means moves to the shorter one of the first and second retracted positions from the position of the ink-jet head at the end of printing. It is desirable to make it.

  Similarly, when the next printing is performed after the recording paper is cut, the control unit moves the ink jet head out of the first and second retracted positions in the retracting operation performed before the cutting. It is desirable to move it closer to the print start position.

  Here, in the case of an auto cutter having a movable blade called a so-called V-groove movable blade (guillotine movable blade), the recording paper is cut from both ends in the width direction toward the center. The recording paper is more likely to be lifted by the movable blade than the one. Therefore, the present invention is suitable for application to an ink jet printer having such an auto cutter.

  The present invention can also be applied to an ink jet printer provided with a roll paper storage unit. In this case, in addition to the above configuration, the inkjet printer with an autocutter of the present invention is attached to the roll paper storage portion formed inside the printer main body and the printer main body so as to be opened and closed, and opens and closes the roll paper storage portion. And an opening / closing lid. The inkjet head and the fixed blade are mounted on one side of the printer main body and the opening / closing lid, and the platen and the movable blade for defining the printing position of the inkjet head are mounted on the other side. The

The present invention also provides:
A transport mechanism for transporting the recording paper along the recording paper transport path;
An inkjet head for printing on the recording paper while moving in the width direction of the recording paper in the recording paper conveyance path;
A fixed blade that is disposed at a position adjacent to the inkjet head in the recording sheet conveyance direction, sandwiches the recording sheet conveyance path, and is disposed on the same side as the inkjet head, and the inkjet head. A control method for an inkjet printer with an autocutter having an autocutter having a movable blade arranged at a position on the opposite side,
Before moving the recording paper cutting by moving the movable blade of the auto cutter, the ink jet head is moved to a retracted position that deviates in the width direction from the recording paper on the recording paper conveyance path.

  Here, when the printing on the recording paper is finished, a conveying operation for conveying the recording paper and positioning it at the cutting position by the auto cutter and a retreating operation for moving the ink jet head to the retreating position are performed simultaneously. Is preferred.

  In the inkjet printer with an autocutter and the control method of the present invention, at the time when the recording paper is cut by the autocutter, the inkjet head is moved to the retracted position that is out of the width direction of the recording paper. Therefore, even if the recording paper moves to the ink jet head side by being dragged by the movable blade, it does not hit the nozzle surface of the ink jet head. Therefore, the problem that the recording paper interferes with the nozzle surface due to the movement of the movable blade when the movable blade is arranged on the opposite side of the inkjet head is solved without adding a new mechanism. can do.

1 is an external perspective view of a roll paper printer with an auto cutter of the present invention. It is a schematic sectional drawing of the roll paper printer with an auto cutter of FIG. It is a fragmentary sectional view which shows the part of the auto cutter of FIG. It is explanatory drawing which shows operation | movement of an auto cutter. It is a schematic block diagram of the drive control system of the roll paper printer with an auto cutter. It is a schematic flowchart which shows printing operation and recording paper cutting operation. It is explanatory drawing which shows the operation | movement at the time of recording paper cutting | disconnection.

  Hereinafter, an embodiment of a roll paper printer with an autocutter to which the present invention is applied will be described with reference to the drawings. Needless to say, the present invention can be applied to an inkjet printer with an auto cutter other than a roll paper printer.

(overall structure)
1A and 1B are external perspective views of a roll paper printer with an auto cutter. FIG. 1A shows a state in which the opening / closing lid is in the closed position, and FIG. 1B shows a state in which the opening / closing lid is in the open position. The roll paper printer 1 with a cutter is an ink jet printer that performs color printing on a long recording paper fed out from the roll paper, and includes a printer body 2 having a rectangular parallelepiped shape as a whole. An opening 4a of a roll paper storage unit 4 for storing the roll paper 3 (see FIG. 2) is formed at the center of the front surface of the printer main body 2, and the opening 4a is attached to the printer main body 2 so as to be openable and closable. It is closed by the open / close lid 5.

  A recording paper discharge guide 6 is attached to the upper end of the opening / closing lid 5, and a recording paper discharge port 7 is formed between the recording paper discharge guide 6 and the upper edge portion of the opening 4 a of the printer body 2. A power switch 8, a paper feed switch 9, a plurality of operation state display lamps 10, and the like are arranged on the right side of the opening / closing lid 5 of the printer body 2. A mounting port 11a of an ink cartridge mounting part 11 for mounting an ink cartridge is opened on the left side portion of the opening / closing lid 5 of the printer body 2, and the ink cartridge 12 is mounted on the ink cartridge mounting part 11 from this opening. ing.

  When the lock (not shown) is released and the recording paper discharge guide 6 of the opening / closing lid 5 is put on the finger and pulled forward, the opening / closing lid 5 is tilted forward from the closed position 5A shown in FIG. It is possible to open up to the opening position 5B shown in FIG. The platen 13 and a movable blade 32 of an auto cutter 30 (see FIG. 2), which will be described later, move together with the opening / closing lid 5 to the front of the printer body 2 in accordance with the opening operation for opening the opening / closing lid 5 from the closed position 5A. As a result, the recording paper transport path 16 (see FIG. 2) from the roll paper storage unit 4 to the recording paper discharge port 7 is opened, so that the roll paper 3 can be easily loaded from the front of the printer. .

(Internal structure)
FIG. 2 is a schematic cross-sectional view of the printer main body, showing a state in which the roll paper 3 is loaded in the roll paper storage unit 4 and the opening / closing lid 5 is in the closed position 5A. A roll paper storage unit 4 is formed inside the printer main body 2, and the roll paper 3 is loaded in a horizontally placed state with the central axis thereof facing the printer width direction. The long recording paper 3 a fed out from the roll paper 3 extends obliquely upward toward the rear of the printer via the feeding roller 17, is then bent forward by the tension roller 18, and then forwards to the front of the printer. The paper is transported along a recording paper transport path 16 that extends to the recording paper discharge port 7. The tension roller 18 is biased toward the back of the printer by a spring force, and a predetermined tension is applied to the recording paper 3a by the tension roller 18.

  A conveyance path portion 16 a that extends linearly in front of the printer in the recording paper conveyance path 16 is positioned directly above the roll paper storage unit 4. In the transport path portion 16a, a printing position A and a recording paper cutting position B are provided in this order from the rear side of the printer toward the front side of the printer. The printing position A is defined by the upper surface of the platen 13, and the platen 13 is mounted on a platen frame 21 that extends in the front-rear direction of the printer. A tension roller 18 is attached to the rear end portion of the platen frame 21. The platen frame 21 is connected to the opening / closing lid 5 and moves (opens / closes) together with the opening / closing lid 5.

  The nozzle surface 20a of the ink jet head 20 mounted on the carriage 19 is opposed to the platen 13 with a certain gap from above. The carriage 19 is movable along a carriage guide shaft 22 spanned in the printer width direction. The carriage guide shaft includes a carriage drive mechanism including a power transmission mechanism including a carriage motor and a belt / pulley mechanism (not shown). 22 reciprocates in the width direction of the conveyance path portion 16a.

  A paper feed roller 23 is disposed on the back side of the printer of the platen 13, and a driven roller 24 is pressed against the paper feed roller 23 from below. A paper discharge roller 25 is disposed between a printing position A and a recording paper cutting position B on the front side of the platen 13, and a driven roller 26 is pressed against the paper discharge roller 25 from above. The paper feed roller 23 and the driven roller 26 are mounted on the printer main body 2, and the driven roller 24 and the paper discharge roller 25 are mounted on the platen frame 21.

  An auto cutter 30 is disposed at the recording paper cutting position B. The auto cutter 30 includes a fixed blade 31, a movable blade 32, and a movable blade drive mechanism 33 that moves the movable blade 32 toward and away from the fixed blade 31. The fixed blade 31 is attached to the printer main body 2 side, and the movable blade 32 and the movable blade drive mechanism 33 are mounted on the platen frame 21 on the opening / closing lid side.

  In the roll paper printer 1 with the auto cutter having this configuration, when the roll paper 3 is loaded into the roll paper storage unit 4, the roll paper 3 is removed through the opening 4 a that is opened by opening the opening / closing lid 5. It is loaded into the roll paper storage unit 4. When the open / close lid 5 is closed while the recording paper 3a is pulled out from the roll paper 3, the platen 13, the movable blade 32, the movable blade drive mechanism 33, the tension roller 18, the driven roller 24, which are mounted on the platen frame 21, Parts such as the paper discharge roller 25 return to their original positions, and the recording paper transport path 16 is formed. Further, the platen 13 faces the inkjet head 20 with a certain gap to define the printing position A, and the movable blade 32 is placed at the recording paper cutting position B. At the same time, the drawn recording paper 3 a is set in a state where it passes through the printing position A and the recording paper cutting position B on the platen 13 on the recording paper conveyance path 16.

  The recording paper 3a is conveyed between the paper feed roller 23 and the driven roller 24 via the printing position A, and printing is performed on the surface of the recording paper 3a by the inkjet head 20 at the printing position A. Further, the recording paper 3 a passes between the paper discharge roller 25 and the driven roller 26 via the recording paper cutting position B, and is cut in the width direction by the auto cutter 14 at the recording paper cutting position B. A piece of recording paper of a certain length obtained by cutting is issued as a receipt.

(Auto cutter)
FIG. 3 is a partial cross-sectional view showing the auto cutter 14 in the roll paper printer 1 with an auto cutter. 4A and 4B are explanatory views showing the operation of the auto cutter 14, wherein FIG. 4A shows a state where the movable blade 32 is at the cutting standby position, and FIG. 4B shows a state where the movable blade 32 is at the cutting end position. .

  The fixed blade 31 is disposed on the same side as the inkjet head 20 with respect to the transport path portion 16a. The blade edge 31a of the fixed blade 31 faces downward, and has a blade edge contour shape extending linearly in the width direction of the transport path portion 16a. On the other hand, the movable blade 32 is disposed on the opposite side of the platen 13, and the blade edge 32a faces upward. The blade edge 32a has a blade edge contour shape (V-groove shape) inclined in a direction away from the fixed blade 31 from both ends in the width direction toward the center. The movable blade 32 is pressed against the fixed blade 31 from the opening side (front side of the printer) of the opening / closing lid 5.

  The movable blade drive mechanism 33 includes a cutter motor 34 and a crank mechanism 35 driven by the cutter motor 34. The movable blade 32 can reciprocate in the direction approaching and moving away from the fixed blade 31 (the printer vertical direction) by the crank mechanism 35. The crank mechanism 35 includes a drive gear 36 that is rotationally driven by a cutter motor 34 via a reduction gear train (not shown). A crank pin 37 is attached to the end face of the drive gear 36 at a position deviating from the center of rotation, and the crank pin 37 is slidably inserted into a linear first slide groove 39 formed on the up and down swing lever 38. ing.

  The vertical swing lever 38 swings up and down with the rotation of the crankpin 37 around the support shaft 40 at one end. The vertical swing lever 38 is formed with a second slide groove 41 at the center portion in the width direction, in which a slide pin 42 fixed at the center position in the width direction of the movable blade 32 is slidable. Plugged in. When the vertical swing lever 38 swings up and down, the movable blade 32 moves in the vertical direction accordingly.

  When the drive gear 36 is rotated 180 degrees from the state where the movable blade 32 shown in FIG. 4A is at the cutting standby position, the movable blade 32 moves to the cutting end position as shown in FIG. 4B. When the drive gear 36 rotates once, the movable blade 32 returns to the original cutting standby position. In this example, the concave portion 32b is formed in the central portion in the width direction of the cutting edge 32a of the movable blade 32, and the recording paper 3a is in a partial cut state in which it can be left uncut in the central portion in the width direction. In the present invention, a full cut may be performed, or a vertical auto cutter may be used.

(Drive control system)
FIG. 5 is a schematic block diagram showing a drive control system of the roll paper printer 1 with an auto cutter. The drive control system includes a drive control unit 50 configured around an MPU including a CPU, ROM, RAM, and the like. Various detection signals are supplied to the drive control unit 50 from various sensor groups 51 including a recording paper sensor disposed in the recording paper conveyance path 16 and a carriage sensor for detecting the movement position of the carriage.

  Based on these detection signals, the drive control unit 50 drives the paper feed motor 53 via the motor driver 52 to control the transport operation of the recording paper 3a. Further, in synchronization with the conveyance of the recording paper 3a, the carriage motor 56 and the inkjet head 20 are driven via the motor driver 54 and the head driver 55, and based on the print command and print data supplied from the host device 60, A printing operation for printing print data on the recording paper 3a is controlled. Further, when the auto cut mode by the auto cutter 30 is designated, or when an auto cut command supplied from the host device 60 is received, the cutter motor 34 is turned on via the motor driver 57 after the end of a series of printing operations. Drive the recording paper cutting operation.

(Example of printing and auto-cut operation)
FIG. 6 is a schematic flowchart showing a printing operation at the time of automatic cutting of the roll paper printer 1 with an auto cutter, and FIG. 7 is an explanatory diagram of the operation. Referring to these drawings, when a print command and print data are received from the host device (step ST1 in FIG. 6), the drive control unit 50 of the roll paper printer 1 drives the paper feed motor 53 to record paper. The positioning conveyance is performed so that the printing start position 3a is positioned at the printing position A. Further, the carriage motor 46 is driven to move the carriage 19 to position the inkjet head from the home position HP (first retracted position) to the print start position in the print area (step ST2 in FIG. 6).

  Thereafter, a line printing operation for ejecting ink droplets while moving the inkjet head 20 in the line direction (the width direction of the recording paper conveyance path 16 and the width direction of the recording paper 3a) in the printing region C, and the recording paper 3a. Are alternately carried out to perform printing on the portion of the recording paper 3a conveyed on the platen 13 (step ST3 in FIG. 6).

  When the series of printing operations is completed (step ST4 in FIG. 6), the recording paper 3a is transported to position the portion to be cut behind the printed recording paper portion at the cutting position B by the auto cutter 30. (Step ST5 in FIG. 6). In parallel with this transporting operation, as shown in FIG. 7A, the inkjet head is moved away from the home position HP (first retracted position) or the printing area C to the opposite side in the width direction of the recording paper transporting path 16. A retreat operation for moving to the position AP (second retreat position) is performed (step ST6 in FIG. 6).

  In this example, the inkjet head 20 is moved from the position in the row direction of the inkjet head 20 at the end of printing to a retracted position that is closer to the movement distance. In the case of the same movement distance for any retreat position, the retreat position is moved to the home position HP. After the portion to be cut of the recording paper 3a is positioned at the cutting position B and the ink-jet head 20 has moved to one of the retracted positions, the recording paper cutting operation by the auto cutter 30 is started (step ST7 in FIG. 6).

  Here, at the time of cutting by the auto cutter 30, the movable blade 32 is pushed up from the platen 13 side to the fixed blade 31 side on the ink jet head side, and the recording paper 3a is cut. Due to the movement of the movable blade 32, the cut portion of the recording paper 3 a is dragged upward, and the portion 3 A of the recording paper 3 a located on the platen 13 may also be lifted from the platen 13. When the inkjet head 20 is located in the printing region C, as shown in FIG. 7B, the floating recording paper portion 3A hits the nozzle surface 20a of the inkjet head 20, and the recording paper portion 3A There are problems such as contamination with ink droplets, paper dust adhering from the recording paper portion 3A to the nozzle surface 20a, causing nozzle clogging, and the recording paper portion 3A destroying the ink meniscus of the nozzle. It can be caused.

  In the present embodiment, the ink jet head 20 is retracted to a position deviated from the printing area C in the width direction (position deviated in the width direction with respect to the recording paper 3a), and the recording paper 3a is pulled up by the movable blade 32. Even if it does not hit the nozzle surface 20a of the inkjet head 20. In this example, the home position HP and the away position AP, which is the opposite end of the carriage return, are set as the retracted position. However, the retracted position is not limited to these positions, and the width of the recording paper 3a. Any position that deviates in the direction is sufficient, and another position shifted in the width direction from these positions can be set as the retreat position.

  In the present embodiment, the operation of moving the ink jet head 20 after printing to the retracted position is performed in parallel with the transporting operation of positioning the recording paper 3a at the cutting position B. Further, the inkjet head 20 at the printing end position is moved to a retracted position closer to the position. Therefore, it is possible to avoid a decrease in throughput of the printing operation caused by retracting the inkjet head 20, or to suppress the decrease to the minimum.

  Next, after the cutting operation of the recording paper 3a is finished, the operation is finished when there is no next print command and print data. In the case of performing the next printing, the printing operation is started after the inkjet head 20 in either one of the retracted positions is moved to the printing start position (steps ST8 and ST2 in FIG. 6).

  Here, when the next printing is performed after the cutting operation of the recording paper 3a, the ink jet head 20 is moved out of the first and second retraction positions (HP, AP) in the retraction operation performed before the cutting operation. Alternatively, it may be moved closer to the next print start position. In this way, the inkjet head 20 can be moved to the printing start position in a short time before the start of the next printing operation.

1 roll paper printer, 2 printer body, 3 roll paper, 3a recording paper, 3A recording paper part, 4 roll paper storage, 4a opening, 5 open / close lid, 5A closed position, 5B open position, 6 recording paper discharge guide 7, recording paper discharge port, 8 power switch, 9 switch, 10 operation status display lamp, 11 ink cartridge mounting portion, 11a mounting port, 12 ink cartridge, 13 platen, 16 recording paper transport path, 16a transport path portion, 17 feeding Roller, 18 Tension roller, 19 Carriage, 20 Inkjet head, 20a Nozzle surface, 21 Platen frame, 22 Carriage guide shaft, 23 Paper feed roller, 24 Drive roller, 25 Paper discharge roller, 26 Drive roller, 30 Auto cutter, 31 Fixed Blade, 31a Blade Tip, 32 movable blade, 32a blade tip, 32b recess, 33 movable blade drive mechanism, 34 cutter motor, 35 crank mechanism, 36 drive gear, 37 crank pin, 38 vertical swing lever, 39 first slide groove, 40 support shaft, 41 Second slide groove, 42 Slide pin, 50 Drive control unit, 51 Sensor group, 52/54/57 Motor driver, 53 Paper feed motor, 55 Head driver, 56 Carriage motor, 60 Host device, HP Home position (first Retracted position), AP away position (second retracted position), A printing position, B cutting position, C printing area

Claims (8)

A transport mechanism for transporting the recording paper along the recording paper transport path;
An inkjet head for printing on the recording paper while moving in the width direction of the recording paper in the recording paper conveyance path;
An auto cutter disposed at a position adjacent to the inkjet head in the recording paper conveyance direction;
Control means for controlling recording paper transport by the transport mechanism, movement and printing of the inkjet head and recording paper cutting by the auto cutter,
The auto cutter includes a fixed blade disposed on the same side as the inkjet head across the recording paper conveyance path, and a movable blade disposed on a position opposite to the inkjet head. When the blade moves toward the fixed blade, the portion of the recording paper located between them is cut in the width direction,
With the auto cutter, the control means moves the ink jet head to a retreat position deviated from the recording paper on the recording paper conveyance path in the width direction before starting the recording paper cutting by the auto cutter. inkjet printer. In claim 1,
When the printing on the recording paper is completed, the control unit simultaneously performs a transport operation for transporting the recording paper and positioning the recording paper at a cutting position by the auto cutter, and a retracting operation for moving the inkjet head to the retracted position. Inkjet printer with auto cutter, characterized in that In claim 1 or 2,
The retracted position includes a first retracted position on one side in the width direction of the recording paper transport path and a second retracted position on the other side,
The ink jet printer with an auto cutter, wherein the control means moves the moving distance from the position of the ink jet head at the end of printing out of the first and second retracted positions. In any one of claims 1 to 3,
When the next printing is performed after the recording sheet is cut, the control unit starts the next printing out of the first and second retracted positions in the retracting operation performed before the cutting. An inkjet printer with an auto cutter, which is moved closer to the position. In any one of claims 1 to 4,
The fixed blade includes a cutting edge having a linear contour extending in the width direction thereof,
The movable blade includes a cutting edge having a contour that is linearly inclined in a direction away from the linear cutting edge of the fixed blade from both ends in the width direction toward the center portion,
An inkjet printer with an auto cutter, wherein the recording paper is cut from both ends in the width direction of the recording paper toward the center as the movable blade moves. In any one of claims 1 to 5,
A roll paper storage section formed inside the printer body;
An open / close lid attached to the printer main body so as to be openable and closable to open and close the roll paper storage unit
The inkjet head and the fixed blade are mounted on one side of the printer main body and the opening / closing lid, and the platen and the movable blade for defining the printing position of the inkjet head are mounted on the other side. An inkjet printer with an auto cutter, characterized in that A transport mechanism for transporting the recording paper along the recording paper transport path;
An inkjet head for printing on the recording paper while moving in the width direction of the recording paper in the recording paper conveyance path;
A fixed blade that is disposed at a position adjacent to the inkjet head in the recording sheet conveyance direction, sandwiches the recording sheet conveyance path, and is disposed on the same side as the inkjet head, and the inkjet head. A method for controlling an inkjet printer with an autocutter comprising an autocutter having a movable blade arranged at a position on the opposite side,
Before moving the recording blade of the auto cutter to start cutting the recording paper, the ink jet head is moved to a retreat position that is deviated from the recording paper in the width direction on the recording paper conveyance path. For controlling an inkjet printer with a printer. In claim 7,
When printing on the recording paper is completed, a conveying operation for conveying the recording paper and positioning it at a cutting position by the auto cutter and a retreating operation for moving the inkjet head to the retreating position are performed simultaneously. Control method for inkjet printer with auto cutter.