JP2007111881A - Method for holding and release for cut piece of recording paper of printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a method for holding and releasing for a cut piece of a recording paper of a printer wherein the recording paper after cutting can be surely prevented from dropping out of a recording paper discharging opening without being brought into a paper jamming state, and the holding can be released according to the necessity. <P>SOLUTION: When the recording paper 7a is cut by a movable blade 24 after the printing operation of a rolled sheet printer 1 ends, the recording paper piece 7b after cutting is held between a movable blade side face 24a and a retaining lever 31, and is prevented from falling (ST1, ST2 and ST3). Even without pulling out the recording paper piece 7a, when the next printing operation is started (ST8), when an opening and closing lid is opened (ST9), and when the paper is sent out by the operation of a paper feed button PF (ST10), the movable blade 24 is returned to an original position beforehand, thereby releasing the holding of the recording paper piece (ST5, ST6 and ST7). The trouble such as paper jamming is thus prevented. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a printer that issues a recording paper piece obtained by printing with a recording paper cutting device after printing on a long recording paper as a receipt, a coupon, and the like. The present invention relates to an operation control method of a recording paper holding mechanism for holding the recording paper pieces so as not to fall from the recording paper discharge port.

  In a printer for issuing receipts, coupons, etc., after printing on a long recording paper such as roll paper, the recording paper is cut by a recording paper cutting device arranged near the recording paper discharge port. A piece of recording paper of a certain length obtained by cutting is issued as a receipt or a coupon. In such a printer, a recording paper cutting device that performs a so-called partial cut that leaves a corner slightly without cutting the recording paper completely so that the recording paper piece does not fall from the recording paper discharge port after cutting is used. May be. Patent Document 1 discloses such a sheet cutting device. In this case, one receipt or coupon can be obtained by the operator tearing off the recording paper piece on the tip side from the cutting position.

  However, if the recording paper piece is cut off in this way, when the operator tears the recording paper piece, the subsequent recording paper portion is also pulled, causing a deviation in the recording paper portion. There is a possibility that bad effects such as dirt and paper jam due to contact with the head may occur.

Therefore, it is desirable to cut the recording paper piece completely and to prevent the recording paper piece from dropping from the recording paper discharge port after cutting. In Patent Document 2, the cut recording paper piece is held between the receipt pressing surface and the receipt pressing piece pressed here, and the recording paper piece after cutting is discharged by the pressing force of the receipt pressing piece. A receipt printer that prevents falling from the outlet is disclosed.
JP-A-9-19886 Japanese Patent Laid-Open No. 9-128655

  However, in the mechanism for preventing the drop of the receipt disclosed in Patent Document 2, the leading edge of the recording paper is forcibly passed between the receipt pressing piece and the receipt pressing surface. For this reason, when the leading edge of the recording paper is bent or curled, the recording paper cannot be passed between them, and there is a possibility that a paper jam will occur at the front of these recording papers. Is expensive.

  In addition, the receipt remains there unless the operator removes the receipt held between them. If the next receipt is issued without the receipt being removed, a paper jam will occur at that portion. Therefore, there is an inconvenience that the next receipt issuing operation cannot be performed unless the receipt is removed by the operator.

  In view of these points, the problem of the present invention is that the cut recording paper piece can be securely held so as not to fall out of the recording paper discharge port without causing a paper jam. An object of the present invention is to propose a method of holding and releasing a cut recording paper piece of a printer that can release the holding.

  In order to solve the above-described problems, a method for holding and releasing a cut recording piece of a printer according to the present invention provides a method for holding a long recording sheet discharged from a recording sheet discharge port at a predetermined length from the leading end. In the recording paper cutting device provided with a fixed blade and a movable blade, from the middle of the cutting, the side of the movable blade that moves in the recording paper cutting direction, the portion of the recording paper on the front side of the cutting position, By holding the pressing blade against the pressing lever biased in the direction toward the side surface, and after cutting the recording paper, the movable blade is held at the position after cutting the recording paper, so that the side surface of the moving blade and the pressing head It is detected that the recording paper piece of a predetermined length obtained by cutting is held between the levers, and the recording paper piece is pulled out from the side surface of the movable blade and between the pushed levers. Once, it is characterized in that to return to the standby position the movable blade from the position after the paper cutting.

  In the method of the present invention, from the middle of cutting, the rear end portion of the recording paper piece obtained after cutting is pressed against the side surface of the movable blade that is cutting the recording paper by the pressing lever. Sandwiched between them. In the state where the recording paper is completely cut and a recording paper piece of a predetermined length is obtained, the rear end portion of the recording paper piece is held between the side surface of the movable blade that has moved to the position after cutting the recording paper and the holding lever. It becomes a state.

  Thus, when the movable blade moves in the cutting direction, the portion of the recording paper located between the side surface of the movable blade and the pressing lever is sandwiched between them. Therefore, unlike the case where the recording paper piece after being cut is held by forcibly passing the leading edge of the recording paper between the pressing lever and the member to which the pressing lever is pressed, there is no possibility of paper jamming. .

  In addition, even after cutting the recording paper, until the recording paper piece is pulled out from between the side of the movable blade and the holding lever, the recording paper piece can be securely attached by holding the movable blade in the position after cutting the recording paper. Can be held at the discharge port.

Further, in the method of the present invention, even when the recording paper piece remains in the holding state, the movable blade is returned from the position after cutting the recording paper to the original standby position in the following cases. Yes.
(1) When performing the next printing operation (2) When the lock of the open / close lid of the recording paper storage unit is released (3) When there is an operation input for feeding out the recording paper

  First, when the next printing operation is performed, that is, when a new receipt, coupon, or the like is issued, the recording paper positioned downstream of the movable blade must be returned to the original standby position. The recording paper cannot be sent out to the discharge port, and the recording paper is jammed at the movable blade portion. According to the present invention, occurrence of such a paper jam can be prevented.

  In addition, when one of the fixed blade and the movable blade of the recording paper cutting device is attached to the printer body side and the other is attached to the opening / closing lid for opening and closing the recording paper storage unit, the movable blade is used for recording. In the position after cutting the paper, the movable blade and the fixed blade overlap each other. For example, when the fixed blade is attached to the side of the opening / closing lid and the movable blade is overlapped with the fixed blade on the opening direction side of the opening / closing lid, the opening / closing lid cannot be opened. In the present invention, when the lock of the opening / closing lid is released, the movable blade is returned to the original standby position away from the fixed blade, so that it is possible to avoid an adverse effect that the opening / closing lid cannot be opened.

  Further, a paper feed button for feeding a recording paper by a manual operation is generally arranged in the printer. If the recording paper feeding operation is performed while the movable blade is in the position after cutting the recording paper, the leading edge of the recording paper hits the movable blade and a paper jam occurs at that position. According to the present invention, occurrence of such a paper jam can be prevented.

  On the other hand, the printer of the present invention is characterized in that the recording paper piece is held and released by the above method. According to the printer of the present invention, since the recording paper piece does not fall from the recording paper discharge port, it is possible to avoid problems such as the recording paper piece dropping and losing, and it is not necessary to pick up the falling recording paper piece. Also good.

  Even if the recording paper piece is not removed, if the next printing operation starts, or if there is an operation input to send out the recording paper, the movable blade is returned to its original position. Can be prevented. Further, even when the opening / closing lid of the recording paper storage unit is unlocked, the movable blade is returned to its original position, so that there is no problem that the opening / closing lid cannot be opened.

  In the present invention, when the movable blade moves in the recording paper cutting direction and starts cutting the recording paper, the portion of the recording paper on the front side of the cutting position is sandwiched between the side surface of the movable blade and the pressing lever, The fall of the recording paper piece after cutting is prevented. Further, the holding of the recording paper piece is released as necessary. Therefore, it is possible to realize a printer capable of holding a recording paper piece so as not to fall from the recording paper discharge port without causing a paper jam or a deterioration in operability.

  Hereinafter, a roll paper printer to which the present invention is applied will be described with reference to the drawings.

(overall structure)
FIG. 1 is an external perspective view of a roll paper printer to which the present invention is applied, and FIG. 2 is an external perspective view of a state in which the opening / closing lid is fully opened. The roll paper printer 1 includes an exterior case 1a having a substantially rectangular parallelepiped shape as a whole, and a recording paper discharge port 2 having a predetermined width is formed on the front surface thereof. A paper discharge guide 3 protrudes forward below the recording paper discharge port 2, and a lid opening / closing lever 4 is disposed on the side of the paper discharge guide 3. A rectangular opening 1b is formed below the paper discharge guide 3 and the lid opening / closing lever 4 in the outer case 1a. The opening 1b is sealed with an opening / closing lid 5 that can be opened forward.

  When the lid opening / closing lever 4 is operated, a lid locking mechanism (not shown) is released, and the opening / closing lid 5 can be opened. When the lid locking mechanism is released and the paper discharge guide 3 is pulled forward, the opening / closing lid 5 is opened until it is substantially horizontal with the lower end as the center, as shown in FIG. When the opening / closing lid 5 is opened, the roll paper storage unit 6 formed in the printer is opened, and the roll paper can be exchanged from the front of the printer.

  Further, on the side of the opening / closing lid 5, an operation surface 60 on which a plurality of status display lamps made of LEDs, a paper feed button PF, and the like are arranged is formed.

  FIG. 3 is a schematic longitudinal sectional view showing the internal structure of the roll paper printer 1, with the outer case 1a removed. FIG. 4 is a plan view when viewed from the direction of arrow IV in FIG. The roll paper storage unit 6 formed inside the printer includes a roll paper holder 8 that holds the roll paper 7 in a rollable state. A recording paper guide 9 is disposed horizontally in the front-rear direction of the printer at a rear portion above the roll paper storage unit 6. On the front side of the recording paper guide 9, a platen guide 10 is disposed horizontally in the front-rear direction of the printer at a higher position. An ink jet head 11 is disposed directly above the platen guide 10. The nozzle surface 11a of the inkjet head 11 is opposed to the upper surface 10a of the platen guide 10 with a certain gap, and the printing position is defined by the upper surface 10a.

  Between the platen guide 10 that defines the printing position and the recording paper guide 9, a first paper feed roller 12 is stretched horizontally in the printer width direction. A first paper pressing roller 13 having a predetermined width is pressed against the first paper feeding roller 12 from the lower side with a predetermined pressing force. The first paper pressing roller 13 is driven by a paper feed motor 15 via a belt-pulley type transmission mechanism 14 (see FIG. 4). A second paper feed roller 16 is disposed at the front end side of the platen guide 10. A second paper pressing roller 17 is pressed against the second paper feeding roller 16 from above.

  Next, the inkjet head 11 is mounted on a carriage 18, and the carriage 18 is supported so as to be movable in the printer width direction (print width direction) along a carriage guide 19 extending horizontally in the printer width direction. . The carriage 18 is connected to a timing belt 20 that extends across the width of the printer, and the timing belt 20 is driven by a carriage motor 21. When the carriage motor 21 is driven, the ink-jet head 11 mounted on the carriage 18 moves in the printer width direction, and the ink-jet head 11 is driven in synchronism with this movement and is fed out of the roll paper 7 and passes through the print position. Printing is performed on the surface of the recording paper 7a.

  Note that one end of a flexible printed wiring board 29 is connected to the carriage 18, and power is supplied to the ink jet head 11 through this end. Ink jet head 11 is supplied with ink from an ink cartridge housed in an ink cartridge housing section arranged on the side of roll paper housing section 6 via an ink tube. In the figure, these ink supply systems are omitted.

  On the other hand, as shown in FIG. 3, a scissors-type recording paper cutting device 22 is disposed at the recording paper discharge port 2. The fixed blade 23 of the recording paper cutting device 22 is vertically arranged in an upward state, and the movable blade 24 is vertically arranged vertically. When the movable blade 24 pivots in the vertical direction with one end in the printer width direction as a fulcrum by the movable blade drive mechanism 25, the contact point with the fixed blade 23 moves in the printer width direction, and the recording paper positioned therebetween 7a can be cut in the width direction. In this example, the fixed blade 23 is attached to the opening / closing lid 5 side, and the movable blade 24 is attached to the printer main body side. Further, the movable blade 24 is adapted to pivot in the vertical direction along the side surface 23a of the fixed blade 23 on the front side (recording paper discharge side) of the printer.

  In the roll paper printer 1 configured as described above, the recording paper 7a drawn from the roll paper 7 stored in the roll paper storage section 6 is transferred to the recording paper guide 9 as shown by a thick dashed line in FIG. Between the first paper feed roller 12 and the first paper press roller 13 and between the second paper feed roller 16 and the second paper press roller 17 via the upper surface 10a (printing position) of the platen guide 10. It is set in a state of being pulled out from the recording paper discharge port 2 through.

  When the first paper feed roller 12 and the second paper feed roller 16 rotate in this state, the conveyance of the recording paper 7a is started. The inkjet head 11 is driven in synchronization with the conveyance of the recording paper 7a, and printing is performed on the surface of the recording paper 7a passing through the printing position. For example, the conveyance is stopped in a state in which the recording paper 7a after printing is discharged from the recording paper discharge port 2, the recording paper 7a is cut by the recording paper cutting device 22, and the printed recording paper piece having a predetermined length is printed on the receipt. Or it is issued as a coupon.

  Here, the recording paper piece obtained by being cut by the recording paper cutting device 22 falls from the recording paper discharge port 2 along the inclined guide surface 3 a of the paper discharge guide 3. Therefore, in the roll paper printer 1 of this example, a recording paper holding mechanism 30 for holding the recording paper piece is arranged at the recording paper discharge port 2 in order to prevent the recording paper piece after the cutting from dropping. ing.

(Recording paper holding mechanism)
FIG. 5 is a schematic configuration diagram showing portions of the recording paper cutting device 22 and the recording paper holding mechanism 30, and shows a state when the recording paper 7 a has been cut by the recording paper cutting device 22. FIG. 6 is an explanatory view showing the operation of the recording paper holding mechanism 30.

  Referring to these drawings, the recording paper holding mechanism 30 includes a pressing lever 31 and a tension coil spring 32 that urges the pressing lever 31. The presser lever 31 is supported in a state in which the presser lever 31 can pivot in the front-rear direction of the printer about the support shaft 33 at a middle position in the vertical direction. At the upper end portion of the pressing lever 31, a vertical engagement surface 34 that can be engaged with the side 24 a on the recording paper discharge side of the movable blade 24 of the recording paper cutting device 22 from the front, and a lower side of the vertical engagement surface 34. An engagement protrusion 35 extending rearward is formed.

  A spring hook 36 is formed at a position below the support shaft 33 in the holding lever 31, and a spring hook 38 is also formed at a position of the printer main frame 37 in front of the spring hook 36. A tension coil spring 32 is stretched between the tension coil springs. As a result, the pressing lever 31 is always urged in the direction in which the upper end portion pivots backward, and the tip of the engaging projection 35 is always held in contact with the recording paper discharge side surface 23 a of the fixed blade 23. Has been.

  Here, the gap between the vertical engagement surface 34 of the pressing lever 31 and the side surface 23a of the fixed blade 23 is set slightly narrower than the thickness of the movable blade 24, and an upper standby position (indicated by an imaginary line in FIG. 5) When the movable blade 24 moves downward (cutting direction) from the top dead center (24A), the presser lever 31 is pushed out so that it fits into these gaps and moves to the cutting end position (bottom dead center) 24B shown in FIG. It has become. Therefore, when the movable blade 24 moves in the cutting direction, an engagement state is formed in which the vertical engagement surface 34 of the pressing lever 31 is pressed against the side surface 24a of the movable blade 24 from the front. When the movable blade 24 is returned upward from the cutting end position 24B, the engagement between the pressing lever 31 and the side surface 24a is released.

  The operation of the recording paper holding mechanism 30 having this configuration will be described. First, as shown in FIG. 6A, the leading edge of the long recording paper 7a is printed via the printing position, and then the recording paper cutting in which the movable blade 24 is positioned at the standby position 24A. A predetermined length of paper is discharged from the recording paper discharge port 2 toward the paper discharge guide 3 through the cutting position 22A of the apparatus 22, and the conveyance of the recording paper 7a is stopped in this state.

  In this state, the recording paper cutting device 22 is driven, and the movable blade 24 moves downward (cutting direction) from the standby position 24A to start cutting the recording paper 7a. FIG. 6B shows this state. When the movable blade 24 moves in the cutting direction, the side surface 24a sandwiches the recording paper portion 7b on the front side (downstream side) of the recording paper cutting position 22A, and the vertical engagement surface of the pressing lever 31 of the recording paper holding mechanism 30. The state engaged with 34 is formed. Thereafter, the rear end portion of the cut recording paper portion 7 b is sandwiched between the side surface 24 a of the movable blade 24 and the vertical engagement surface 34 of the pressing lever 31.

  While the engagement state is maintained, as shown in FIG. 5, the movable blade 24 is lowered to the cutting end position 24B, and the recording paper 7b having a predetermined length is completely cut from the leading end portion of the recording paper 7a. Is done. In this state, the rear end portion of the cut recording paper piece 7 b is sandwiched between the movable blade 24 and the pressing lever 31. Therefore, the recording paper piece 7b does not slide down the paper discharge guide 3 and fall downward.

  Here, as shown in FIG. 5, a recording paper sensor 40 for detecting whether or not the cut recording paper piece 7 b has been removed is disposed in the vicinity of the paper discharge guide 3. When the operator takes out the recording paper piece 7b, the recording paper sensor 40 detects it, and based on this, the movable blade 24 is returned to the original standby position 24A. Further, the recording paper cutting device 22 of the present example detects a top dead center sensor 41 for detecting that the movable blade 24 has returned to the standby position 24A, and detects that the movable blade 24 has been lowered to the cutting and storing position. The bottom dead center sensor 42 is provided.

(Drive control system)
FIG. 7 is a schematic block diagram showing a drive control system of the roll paper printer 1 of this example. The drive control system has a drive control circuit 51 configured mainly with a microcomputer. The drive control circuit 51 includes a head driver 52 for driving the inkjet head 11, motor drivers 53 and 54 for driving the paper feed motor 15 and the carriage motor 21, and the movable blade 24 of the recording paper cutting device 22. A motor driver 56 of a drive motor 55 for moving the motor is connected. Further, it is connected to a host device 57 such as a personal computer. The drive control circuit 51 executes the control program stored in the ROM, thereby causing the inkjet head 11 to synchronize with the recording paper feeding operation based on the print command and print data supplied from the host device 57. Driven to print on the recording paper 7a.

  Further, on the input side of the drive control circuit 51, the paper feed button PF, the lid opening / closing lever 4 is operated, the unlocking sensor 58 for detecting that the lid locking mechanism is released, the recording paper sensor 40, the top dead A point sensor 41, a bottom dead center sensor 42, and the like are connected. Based on the command signal and the detection signal input from these, the recording paper holding mechanism 30 holds and releases the recording paper piece 7a as described below.

(Recording paper piece holding and holding release operations)
FIG. 8 is a schematic flowchart showing the operation of holding and releasing the recording paper piece of the recording paper holding mechanism 30. When the printing operation is completed, the conveyance of the recording paper 7a is stopped, and the recorded recording paper portion is fed forward from the recording paper cutting position 22A (see FIG. 6A). Thereafter, the drive motor 55 of the recording paper cutting device 22 is driven, and the movable blade 24 moves in the cutting direction (downward) from the standby position 24A to start cutting the recording paper 7a (the cutter drive in step ST1). (Refer FIG.6 (b)). When the bottom dead center sensor 42 detects that the movable blade 24 has reached the cutting end position 24B (bottom dead center), the drive motor 55 stops and the movable blade 24 is held at the position 24B (step). ST2, 3). As a result, the printed portion on the front end side of the recording paper 7a is cut to obtain a recording paper piece 7b having a predetermined length, and the rear end portion of the recording paper piece 7b is as shown in FIG. It becomes the state held by.

  In this state, when the operator pulls out the recording paper piece 7b, the recording paper piece 7b is not detected by the recording paper sensor 40, and it can be seen that the recording paper piece 7b has been pulled out (step ST4). When the recording paper piece 7b is pulled out, an operation of returning the movable blade 24 to the original standby position (top dead center) 24B is started (cutter return in step ST5). When the top dead center sensor 41 detects that the movable blade 24 has returned to the standby position 24B, the movable blade 24 stops (steps ST6 and ST7).

  Here, even if the recording paper piece 7b is not pulled out by the operator, in the following case, the movable blade 24 returns to the standby position 24A, and the holding of the recording paper piece 7b is released. First, when the next printing operation is started, that is, when a new receipt, coupon, or the like is issued, if the movable blade 24 is not returned to the original standby position 24A, the recording located on the downstream side thereof is performed. The paper 7a cannot be sent out to the recording paper discharge port 2, and the conveyance of the recording paper 7a is blocked by the movable blade 24, and the recording paper 7a is jammed here. In this example, when the next printing operation is performed, even if the recording paper piece 7b is held, the movable blade 24 is returned to the original standby position 24A to release the holding of the recording paper piece 7b (step). ST4 → ST8 → ST5 → ST6 → ST7). This prevents paper jams from occurring.

  Further, even when the unlocking sensor 58 detects that the lid opening / closing lever 4 is operated to unlock the opening / closing lid 5, even if the recording paper piece 7b is held, the movable blade 24 is kept in the original standby state. The position is returned to the position 24A (steps ST4 → ST8 → ST9 → ST5 → ST6 → ST7). In this example, the fixed blade 23 is attached to the opening / closing lid 5 side, and the movable blade 24 moves on the recording paper discharge side (the opening direction side of the opening / closing lid 5) of the fixed blade 23. Therefore, the open / close lid 5 cannot be opened in the closed state where the movable blade 24 is located at the cutting end position 24B. If the open / close lid 5 is forcibly opened in this state, the recording paper cutting device 22 is damaged. End up. In this example, such an adverse effect is prevented.

  Further, even when the paper feed button PF is operated, if the movable blade 24 is closed, the leading edge of the recording paper 7a hits the paper and enters a paper jam state. Therefore, in this example, even when the paper feed button PF is operated, the movable blade 24 is returned to the standby position 24A (step ST4 → ST8 → ST9 → ST10 → ST5 → ST6 → ST7). For this reason, it is possible to prevent the occurrence of a paper jam caused by the paper feed operation.

  As described above, in the roll paper printer 1 of this example, the portion of the recording paper positioned between the pressing lever 31 and the movable blade 24, that is, the rear end portion of the recording paper 7b after cutting, The recording paper 7b after cutting is prevented from falling by being sandwiched between the two. Accordingly, unlike the case where the recording paper is passed through the portion where they are pressed in advance and the recording paper 7b after being cut is sandwiched between them, there is no possibility that paper jam will occur in that portion.

  Even if the cut recording paper 7b is not removed, if the movable blade 24 is returned, the recording paper 7b is opened and falls from the recording paper discharge port 2. Therefore, even if the operator forgets to remove the recording paper 7b, the next recording paper issuing operation or the like can be started. That is, prior to the next printing operation, the movable blade 24 is returned to release the recording paper piece 7b. Further, when there is a paper feed operation input, the movable blade 24 is returned to release the holding of the recording paper piece 7b, and the paper feed is performed. Therefore, it is possible to avoid a paper jam caused by the movable blade 24 in the closed state. Further, even when the lock is released to open the opening / closing lid 5, the movable blade 24 is returned to release the holding of the recording paper piece 7b. Therefore, the trouble that the opening / closing lid 5 cannot be opened does not occur.

  Therefore, it is possible to realize a roll paper printer with good operability that can hold a cut recording paper piece without causing a paper jam and can prevent problems caused by maintaining the holding state of the recording paper piece.

1 is an external perspective view of a roll paper printer to which the present invention is applied. FIG. 2 is an external perspective view of a roll paper printer with an open / close lid open. It is a schematic longitudinal cross-sectional view which shows the internal structure of the roll paper printer of FIG. FIG. 4 is a plan view when viewed from the direction of arrow IV in FIG. 3. It is a schematic block diagram showing a recording paper holding mechanism of a roll paper printer. It is explanatory drawing which shows operation | movement of a recording paper holding mechanism. It is a schematic block diagram of a drive control system of a roll paper printer. 3 is a schematic flowchart showing operations for holding and releasing a recording paper piece.

Explanation of symbols

1 roll paper printer, 2 recording paper discharge port, 3 paper discharge guide, 4 lid opening / closing lever, 5 opening / closing lid, 6 roll paper storage, 7 roll paper, 7a recording paper, 7b recording paper piece, 8 roll paper holder, 10 platen Guide, 10a Upper surface (printing position), 11 Ink jet head, 12 First paper feed roller, 13 First paper press roller, 16 Second paper feed roller, 17 Second paper press roller, 18 Carriage, 19 Carriage guide, 21 Carriage Motor, 22 Recording paper cutting device, 23 Fixed blade, 23a Side of fixed blade, 24 Movable blade, 24a Side of movable blade, 30 Recording paper holding mechanism, 31 Pressing lever, 32 Tension coil spring, 33 Support shaft, 34 Vertical engagement 35, mating protrusion, 36, 38 spring hook, 40 recording paper sensor, 41 top dead center sensor, 42 bottom dead center sensor, 51 drive control Road, 52 head driver, 53, 54 and 56 a motor driver, 55 driving motor, 57 host device, 58 unlock sensor, PF paper feed button

Claims (3)

The long recording paper discharged from the recording paper discharge port is cut by a recording paper cutting device provided with a fixed blade and a movable blade at a position of a predetermined length from the tip,
Holds the side of the movable blade that moves in the cutting direction of the recording paper from the middle of the cutting by pressing the portion of the recording paper on the front side of the cutting position against the pressing lever that is biased toward the side. And
After cutting the recording paper, the recording blade of a predetermined length obtained by cutting was held between the side surface of the movable blade and the pressing lever by holding the movable blade in the position after cutting the recording paper. Maintain state,
The printer is characterized in that when it is detected that the recording paper piece has been pulled out from between the side surface of the movable blade and the pressed lever, the movable blade is returned from the position after cutting the recording paper to the standby position. A method for holding and releasing a cut recording paper piece. In claim 1,
Even in a state where the recording paper piece is held between the side surface of the movable blade and the pressing lever, in the following case, the movable blade is returned to the standby position in advance to hold the recording paper piece. A method for holding and releasing a cut recording paper piece of a printer, wherein the cutting recording paper piece is released.
(1) When performing the next printing operation (2) When the lock of the open / close lid of the recording paper storage unit is released (3) When there is an operation input for feeding out the recording paper   3. A printer which holds and releases a recording paper piece having a predetermined length obtained by cutting a long recording paper by the method according to claim 1 or 2.

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