JP3805972B2 - Printer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a printer that prints on continuous paper and issues the cut continuous paper after printing.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, a receipt issuing printer or a label printer has been put to practical use as a printer that prints on continuous paper and cuts and issues the continuous paper after printing. In these receipt issuing printers and label printers, continuous paper such as roll paper is generally used as paper. For this reason, a receipt or a label with a mount is issued by cutting the printed continuous paper with a cutter.
[0003]
Here, as a cutter for cutting continuous paper, a structure that cuts continuous paper by a human force such as tear bar may be used. However, in a device of a certain grade or higher, continuous paper is automatically cut. An auto cutter is generally used. FIG. 9 is a schematic side view showing a continuous paper cutting process by a cutter device having a structure for cutting continuous paper with a fixed blade and a movable blade as an example of an auto cutter used in a receipt issuing printer.
[0004]
As shown in FIGS. 9A and 9B, the printed continuous paper 102 guided and conveyed along the guide path 101 is fixed at the cutting position CP with the movable blade 103 pivoting about the support shaft 104. It is cut by meshing with the blade 105. At this time, as the movable blade 103 rotates, the meshing position of the movable blade 103 and the fixed blade 105 at the cutting position CP is gradually moved, whereby the continuous paper 102 is cut. In other words, the cutting of the continuous paper 102 by the engagement of the movable blade 103 and the fixed blade 105 utilizes the paper cutting principle using a scissors.
[0005]
Then, as shown in FIGS. 9B and 9C, the cut continuous paper 102 is issued as a receipt 106.
[0006]
[Problems to be solved by the invention]
Roll paper used as continuous paper is curled by the curl. For this reason, the receipt issued from the printer and the label with the mount are also curled. The direction of the curl differs depending on the roll paper drawing structure in the printer. That is, when roll paper is used as the outer roll paper, as illustrated in FIGS. 9A and 9B, the receipt 106 is issued so that the curled inner surface faces downward, and the roll paper is used as the inner roll paper. When using as, the opposite is true.
[0007]
Here, as illustrated in FIGS. 9A and 9B, when the receipt 106 is issued such that the curled inner surface side faces downward, depending on the length of the issued receipt 106, the rear end is again formed. The portion 106 a is fed back to the guide path 101 and may be positioned on the upstream side of the guide path 101 with respect to the cutting position CP that is the meshing portion of the movable blade 103 and the fixed blade 105. This is because the tip 106b of the curled receipt 106 is brought into contact with the installation surface of the receipt issuing printer or when the receipt issuing printer is incorporated in an electronic cash register or a POS terminal. This is because, in this case, the rear end portion 106 a may be sent back to the guide path 101 depending on the waist strength of the receipt 106.
[0008]
Thus, when the issued receipt 106 is reversely fed to the guide path 101 and the rear end portion 106a is positioned on the upstream side of the guide path 101 with respect to the cutting position CP, the subsequent continuous printed paper 102 is printed. When the cutting operation is performed, there is a problem in that the rear portion of the receipt 106 that has already been issued is cut twice to generate chips, and in some cases, paper jam occurs.
[0009]
As described above, the receipt issuance by the receipt issuing printer has been described as an example. However, a printer that prints on roll paper and cuts and issues the roll paper after printing, for example, issuance of a label with a mount in a label printer. In some cases, similar problems arise.
[0010]
An object of the present invention is to prevent paper once issued from continuing to remain in the guide path.
[0011]
[Means for Solving the Problems]
[0013]
  Claim1The invention of the printer described isThe paper stored and held in a paper storage unit for storing and holding continuous paper as roll paper.Guide continuous paperThe curled inner surface of the continuous paper is discharged so that the curled inner surface faces downward.Guiding path, a printing part for printing predetermined items on continuous paper guided along the guiding path, and a fixed blade disposed on the downstream side of the printing part of the guiding path and sandwiching the guiding path A cutter device for cutting continuous paper by meshing with the movable blade,A forced discharge portion formed by a narrow guide path that guides the continuous paper with a slight gap downstream of the guide path from the cutting position of the continuous paper by the cutter device, the narrow guide path,Remain in the guide routeWas cut by the cutter deviceThe remaining paper and the continuous paper to be discharged and conveyed are brought into contact so that the paper after printing is issued is discharged following the continuous paper that is newly discharged and conveyed..
[0014]
Therefore, the remaining paper and the continuous paper to be discharged and conveyed are brought into contact with each other by the forcible discharge unit, so that the paper remaining in the guide path is discharged following the continuous paper that is newly discharged and conveyed. , Once issued paper is prevented from remaining in the guide path.
[0017]
  Claim2The described invention is claimed.1In the printer described above, the narrow guide path is opposed to a guide surface formed on one of the fixed blade and the movable blade disposed below the narrow guide path and in proximity to the guide surface. It is formed between the regulating member.
[0018]
That is, a narrow guide path is formed by using any one of the fixed blade and the movable blade as a guide surface and disposing the regulating member so as to face the guide surface. Therefore, the remaining paper comes into contact with the guide surface by the forcible discharge unit, and the continuous paper to be discharged and conveyed comes into contact with the regulating member. The paper is discharged following the continuous paper discharged and conveyed.
[0019]
  Claim3The described invention is claimed.2In the described printer, a gap between the guide surface and the regulating member is 0.3 mm to 0.9 mm.
[0020]
If the gap is such a level, when continuous paper having a general thickness is used, the remaining paper in the guide path is newly discharged and conveyed by contact between the remaining paper and the continuous paper that is discharged and conveyed. It is possible to follow the friction with continuous paper.
[0021]
  Claim4The described invention is claimed.2 or 3The printer according to claim 1, wherein a platen that forms part of the printing unit, a lower unit having the movable blade, and a rotary unit that is rotatably attached to the lower unit and is positioned on a rotary free end side, And an upper unit having a print head, a fixed blade, and the regulating member.
[0022]
Therefore, the guide path is opened by rotating and opening the upper unit with respect to the lower unit.
[0023]
  Claim5The described invention is claimed.4In the printer described above, the restricting member is in a protected position that covers the fixed blade in a state where the upper unit is pivotally opened with respect to the lower unit, and in a state where the upper unit is closed with respect to the lower unit. A biasing member that is pivotably attached to an open position that opens the fixed blade; and a biasing member that biases the cutter cover to the protection position; and the upper unit with respect to the lower unit And a cam mechanism for rotating the cutter cover to the open position by a cam action as it is closed.
[0024]
Therefore, when the upper unit is rotated and opened with respect to the lower unit, the cutter cover is urged by the urging portion and rotated to be positioned at a protection position that covers the fixed blade. When the upper unit is rotated and closed with respect to the lower unit, the cutter cover is rotationally driven by the cam mechanism, and the cutter cover is positioned at an open position that allows the movable blade to mesh with the fixed blade. In this state, the cutter cover acts as a regulating member.
[0025]
  Claim6The described invention is claimed.4 or 5In the described printer, the lower unit includes:SaidA paper storage unit is provided.
[0026]
Therefore, the operation of setting the continuous paper is completed only by rotating the upper unit with respect to the lower unit to release it, closing the upper unit in a state where the continuous paper is set in the paper storage unit and pulled out to the guide path.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. The present embodiment is an example applied to a receipt issuing printer built in an electronic cash register.
[0028]
FIG. 1 is a perspective view of an electronic cash register showing an embodiment of the present invention.
[0029]
In the electronic cash register 1 of the present embodiment, an operation display surface 4 is formed on the upper surface of a housing 3 in which a drawer unit 2 is incorporated in the lower portion, and various devices are arranged on the operation display surface 4. Yes.
[0030]
A keyboard 5 and a card scanning groove 6 for a card reader (not shown) are arranged on the front right side of the operation display surface 4, and a coin bill holder 7 is arranged on the front left side. A cashier indicator 8 is disposed on the right rear side of the operation display surface 4, and a receipt issuing port 9 is disposed on the left rear side. The cashier display 8 is constituted by a liquid crystal display panel and can be tilted freely. The receipt issuing port 9 is disposed between the printer cover 10 disposed on the rear left side of the operation display surface 4 and the housing 3, and a scanner holder 11 is disposed in the housing 3. The printer cover 10 is detachable with respect to the housing 3. When the printer cover 10 is opened, a later-described receipt issuing printer 12 incorporated in the housing 3 can be exposed.
[0031]
Further, a customer display (not shown) is arranged on the back surface of the housing 3.
[0032]
Next, the receipt issuing printer 12 will be described in detail.
[0033]
2 is a perspective view from the left showing an upper unit of the receipt issuing printer 12 built in the electronic cash register 1, FIG. 3 is a perspective view from the right, and FIG. 4 is a right side view thereof. FIG. 5 is a right side view showing a state in which the upper unit is closed.
[0034]
The receipt issuing printer 12 is composed of a lower unit 13 and an upper unit 14 in which various structures are attached to a sheet metal frame F. The lower unit 13 is screwed and fixed inside the housing 3, and the upper unit 14 is rotatably attached to the rear part of the lower unit 13 by a support shaft 15.
[0035]
First, the lower unit 13 will be described. The lower unit 13 is provided with a throw-in type paper storage unit 17 that is positioned behind and stores and holds a continuous paper 16 (see FIG. 8) that is a roll paper, and is provided with a platen 18 that is positioned forward. Yes. The platen 18 is rotatably attached to the frame F of the lower unit 13 by a platen shaft 19, and is transmitted to the platen shaft 19 by a power transmission gear train 20 shown in FIGS. It is rotationally driven by the driving force from the motor.
[0036]
Further, the lower unit 13 is provided with a movable blade 22 that constitutes the cutter device 21 so as to be positioned in the forefront thereof. The movable blade 22 is rotatably attached to the frame F of the lower unit 13 by a movable blade shaft 23 and is driven by the cutter driving mechanism 24 to rotate around the movable blade shaft 23. The cutter drive mechanism 24 is basically composed of a rotating cam 25 connected to the power transmission gear train 20 via a clutch (not shown) and a driven lever 26 driven by the rotation of the rotating cam 25. It is formed by fitting a connecting pin 28 provided on the side surface of the movable blade 22 into a connecting hole 27 formed at the far end of the driven lever 26.
[0037]
The lower unit 13 is further provided with a reflective optical sensor 29 that is positioned between the paper storage unit 17 and the platen 18 and detects the presence or absence of the continuous paper 16.
[0038]
Next, the upper unit 14 will be described. The upper unit 14 is attached to a print head 30 that is a line-type thermal head so as to be positioned at the distal end of the rotation free end side. The print head 30 is rotatably attached to the frame F of the upper unit 14 by a head shaft 31, and is positioned so that a heating element row (not shown) contacts the platen 18. Further, the print head 30 is biased by a spring (not shown) so that the heating element row contacts the platen 18. Here, the print head 30 constitutes a printing unit together with the platen 18.
[0039]
The upper unit 14 is also provided with a fixed blade 32 (see FIG. 8) that constitutes the cutter device 21 together with the movable blade 22 provided in the lower unit 13. The fixed blade 32 is attached to the frame F of the upper unit 14 so as to be freely movable, and is attached by being biased in the direction of a cutting position CP (see FIG. 8) that meshes with the movable blade 22.
[0040]
FIG. 6 is a perspective view of the cutter cover, and FIG. 7 is a perspective view of the cutter cover as seen from a different angle from FIG. As shown in FIGS. 2 to 5, the fixed blade 32 is openably covered by a cutter cover 34 that is rotatably attached to a tip end portion of the frame F of the upper unit 14 by a cover shaft 33. That is, the cutter cover 34 is urged by a spring 35 as an urging member spanned between the frame F of the upper unit 14 and is fixed when the upper unit 14 is opened with respect to the lower unit 13. It is positioned at a protective position PP that covers the blade 32. In the process in which the upper unit 14 is closed with respect to the lower unit 13, the contact portion of the cutter cover 34 is brought into contact with the contact side 36 formed on the frame F of the lower unit 13 that supports the movable blade 22 and the driven lever 26. When the abutting portion 37 abuts, the abutting portion 37 of the cutter cover 34 slides on the abutting side 36 so that the cutter cover 34 rotates in a direction in which the fixed blade 32 can be opened to face the movable blade 22. Each part is configured. Therefore, as shown in FIG. 5, when the upper unit 14 is completely closed with respect to the lower unit 13, the cutter cover 34 is positioned at an open position OP where the fixed blade 32 is opened. As described above, the cutter cover 34 has a cam action of the cam mechanism 38 formed by the contact portion 37 and the frame F of the lower unit 13 that supports the movable blade 22 and the contact side 36 formed on the driven lever 26. Is displaced from the protective position PP to the open position OP.
[0041]
Further, a guide path 39 is formed between the lower unit 13 and the upper unit 14 so as to pass through the print head 30 from the paper storage unit 17 and reach the cutter device 21 (see FIGS. 2 to 4). The guide path 39 extends from the paper storage unit 17 to the printing unit composed of the platen 18 and the print head 30, and the lower upstream guide plate 40 provided in the lower unit 13 and the upper upstream provided in the upper unit 14. The guide plate 41 is formed. The guide path 39 is formed by a lower downstream guide plate 42 provided in the lower unit 13 and an upper downstream guide plate 43 provided in the upper unit 14 between the printing unit and the cutter device 21. . An optical sensor 29 is attached to the lower upstream guide plate 40, and a feed roller 44 positioned in the vicinity of the optical sensor 29 is rotatably attached to the upper upstream guide plate 41. The guide path 39 thus formed communicates with the receipt issuing port 9 shown in FIG.
[0042]
FIG. 8 is a right side view of the cutter device showing a continuous paper cutting process. Here, in the cutter device 21, as shown in FIG. 8, a guide path 39 is positioned between the movable blade 22 and the fixed blade 32, and the guide path 39 extends from that portion to the receipt issuing port 9 shown in FIG. Will come. In a region between them, a guide path 39 is formed by a guide surface 45 formed on the upper surface of the movable blade 22 and a regulating member 46 formed in a region of the central portion of the cutter cover 34 facing the guide surface 45. . The guide path 39 in this region is formed as a narrow guide path 47 having a gap of 0.3 mm to 0.9 mm. Here, the gap of 0.3 mm to 0.9 mm in the narrow guide path 47 is a gap having a slightly wider interval than the thickness of the general continuous paper 16 used as receipt paper. For this reason, as shown in FIG. 8, when a receipt 48 as a sheet that is the continuous paper 16 after cutting remains in the narrow guide path 47, the continuous paper 16 that is discharged and conveyed following the remaining receipt 48 is transferred. In the case of overlapping, the remaining receipt 48 and the succeeding continuous paper 16 come into contact with each other inside the narrow guide path 47, and the remaining receipt 48 is discharged by friction with the succeeding continuous paper 16. Become. Therefore, the narrow guide path 47 is discharged and conveyed with the remaining receipt 48 so that the receipt 48 remaining on the guide path 39 (narrow guide path 47) is discharged following the continuous paper 16 that is newly discharged and conveyed. The function as a forced discharge part which makes the continuous paper 16 contacted is exhibited.
[0043]
Further, as shown in FIG. 8, the lower downstream guide plate 42 in the lower unit 13 is formed slightly higher than the guide surface 45 formed on the movable blade 22. The side wall of the lower downstream guide plate 42 that faces the movable blade 22 is a contact surface 42 a that is slightly higher than the guide surface 45.
[0044]
In addition, the lower unit 13 is provided with a damper mechanism 49 for imparting rotational resistance to the upper unit 14 that rotates relative to the lower unit 13, and the upper unit 14 that is closed relative to the lower unit 13. A position fixing mechanism 50 for fixing is provided (see FIGS. 2 to 5).
[0045]
In such a configuration, the electronic cash register 1 of the present embodiment prints and issues a receipt 48 in which the transaction details are recorded for each transaction by the receipt issuing printer 12. That is, the receipt issuing printer 12 records the transaction details on the continuous paper 16 by the print head 30 while rotating the platen 18 in accordance with the printing command, and when the printing for one transaction is completed, drives the cutter device 21 to drive the continuous paper. 16 is cut into a receipt 48 and the receipt 48 is issued from the receipt issuing port 9.
[0046]
Here, based on FIGS. 2-5 and FIG. 8, the cutting | disconnection operation | movement of the continuous paper 16 is demonstrated. First, the printed continuous paper 16 is guided through a guide path 39 to a narrow guide path formed between a guide surface 45 formed on the movable blade 22 and a regulating member 46 formed on the cutter cover 34. It is discharged from the receipt issuing port 9 shown in FIG. In this state, when an instruction to cut the continuous paper 16 is input, power is transmitted to the rotating cam 25 of the cutter driving mechanism 24, and the rotating cam 25 is rotated. As a result, the driven lever 26 swings and the movable blade 22 is driven. Then, the movable blade 22 rotates from the state shown in FIG. 8A to the state shown in FIG. 8B and meshes with the fixed blade 32 at the cutting position CP. As a result, the continuous paper 16 guided by the guide path 39 and cut at the cutting position CP is cut, and the cut continuous paper 16 is issued from the receipt issuing port 9 as a receipt 48 on which transaction details are recorded.
[0047]
Here, the receipt 48 is issued in a curled state by the curl of the continuous paper 16 which is roll paper (see FIG. 8). Therefore, depending on the length, the tip of the receipt 48 may come into contact with the coin bill holder 7, for example. In this case, the receipt 48 may be completely issued from the receipt issuing port 9 with its tip end sliding on the coin bill holder 7. In some cases, it is reversely sent back to the inside of the receipt issuing printer 12. In this case, the rear end portion of the receipt 48 that has been fed back contacts the contact surface 42a of the lower downstream guide plate 42, and does not enter further back (see FIG. 8C). When a printing operation is performed on the subsequent continuous paper 16 in this state, the subsequent continuous paper 16 is further guided and conveyed and enters the narrow guide path 47. Then, the receipt 48, which is reversely fed and remains in the narrow guide path 47, comes into surface contact with the continuous paper 16 that is subsequently discharged and conveyed, and the remaining receipt 48 is discharged and conveyed. The continuous paper 16 is discharged following the friction. As a result, it is possible to prevent the receipt 48 once issued from continuing to remain in the guide path 39, and it is possible to ensure generation of chips, paper jam, and the like due to the re-cutting operation on the receipt 48 once issued. Can be prevented.
[0048]
The narrow guide path 47 for allowing the receipt 48 to follow the discharged and conveyed continuous paper 16 in a frictional manner has a simple structure in which only a slight gap is provided and the continuous paper is guided. Since the movable blade 22 and the cutter cover 34 are formed using existing structures, the structure can be simplified and the cost of parts can be reduced.
[0049]
In addition, in order to set the continuous paper 16 as roll paper, the upper unit 14 is rotated and opened with respect to the lower unit 13, and the continuous paper 16 is inserted into the paper storage unit 17 and pulled out somewhat. Only a simple operation of simply closing the upper unit 14 is required, and therefore the setting operation of the continuous paper 16 is easy. In addition, when the upper unit 14 is rotated and opened with respect to the lower unit 13, the cutter cover 34 biased by the spring 35 rotates to the protection position PP and covers the fixed blade 32. Secured.
[0050]
Although this embodiment exemplifies an application to a receipt issuing printer, in implementation, a printer that prints on continuous paper and cuts and issues the continuous paper after printing, for example, continuous paper is used. The present invention may be applied to a label printer or the like that prints a predetermined item on a certain label sheet, cuts a mount portion between the labels, and issues a label with a mount.
[0051]
【The invention's effect】
  Invention of Claim 1According toIt is possible to prevent the paper once issued from remaining in the guide path. Therefore, generation of chips and paper jam due to re-cutting operation by the fixed blade and the movable blade with respect to the paper once issued. Etc. can be reliably prevented.In addition, since the forced discharge portion is formed by a narrow guide path that guides the continuous paper with a slight gap, the forced discharge portion can be configured with a simple structure, thus facilitating manufacture. be able to.
[0054]
  Claim2The described invention is claimed.1In the printer described above, the narrow guide path is opposed to a guide surface formed on one of the fixed blade and the movable blade disposed below the narrow guide path and in proximity to the guide surface. Since the forcible discharge portion can be configured by using existing materials, the structure can be simplified and the cost of components can be reduced.
[0055]
  Claim3The described invention is claimed.2In the printer described above, the gap between the guide surface and the regulating member is 0.3 mm to 0.9 mm. Therefore, if continuous paper having a general thickness is used, it is issued once. It is possible to prevent the paper from being fed back to the guide route.
[0056]
  Claim4The described invention is claimed.2 or 3The printer according to claim 1, wherein a platen that forms part of the printing unit, a lower unit having the movable blade, and a rotary unit that is rotatably attached to the lower unit and is positioned on a rotary free end side, Since the print head constituting a part of the part, the fixed blade, and the upper unit having the restricting member are provided, the guide path is formed by rotating the upper unit in the opening direction with respect to the lower unit. Therefore, various maintenance can be facilitated.
[0057]
  Claim5The described invention is claimed.4In the printer described above, the restricting member is in a protected position that covers the fixed blade in a state where the upper unit is pivotally opened with respect to the lower unit, and in a state where the upper unit is closed with respect to the lower unit. A biasing member that is pivotably attached to an open position that opens the fixed blade; and a biasing member that biases the cutter cover to the protection position; and the upper unit with respect to the lower unit And a cam mechanism for rotating the cutter cover to the open position by a cam action as it is closed, so that the fixed blade is covered by the cutter cover located at the protected position, and safety can be ensured. The cutter cover located in the open position can function as a restricting member, and thus the cutter blade covers the fixed blade. Ttakaba can serve also as a function of the original function and the regulating member, can be reduced such simplification and cost of parts structure by standardization of parts.
[0058]
  Claim6The described invention is claimed.4 or 5In the described printer, the lower unit includes:SaidSince the paper storage section is provided, the paper setting work can be facilitated by rotating and releasing the upper unit with respect to the lower unit. In this case, the forced discharge part is also a guide surface formed on the movable blade on the lower unit side. And the restriction member on the upper unit side, it is possible to prevent the presence of the forced discharge portion from hindering the ease of paper setting work.
[Brief description of the drawings]
FIG. 1 is a perspective view of an electronic cash register showing an embodiment of the present invention.
FIG. 2 is a perspective view from the left showing a state in which an upper unit of a receipt issuing printer built in an electronic cash register is opened.
FIG. 3 is a perspective view from the right side showing a state where an upper unit of a receipt issuing printer built in the electronic cash register is opened.
FIG. 4 is a right side view showing a state where an upper unit of a receipt issuing printer built in the electronic cash register is opened.
FIG. 5 is a right side view showing a state in which the upper unit of the receipt issuing printer built in the electronic cash register is closed.
FIG. 6 is a perspective view of a cutter cover.
7 is a perspective view of the cutter cover as seen from a different angle from FIG. 6. FIG.
FIG. 8 is a right side view of the cutter device showing a process of cutting continuous paper.
FIG. 9 is a right side view of a cutter device showing a continuous paper cutting process as an example of the prior art.
[Explanation of symbols]
13 Lower unit
14 Upper unit
16 Continuous paper (roll paper)
17 Paper storage
18 Platen
21 Cutter device
22 Movable blade
30 Print head
32 Fixed blade
34 Cutter cover
35 Biasing member (spring)
38 Cam mechanism
39 Guide route
45 Guide surface
46 Restriction member
47 Narrow guide route (forced discharge part)
48 paper (receipt)
CP cutting position
OP opening position
PP protected position

Claims (6)

A guide path for guiding the continuous paper stored and held in a paper storage unit for storing and holding continuous paper that is roll paper, and discharging the curled inner surface of the continuous paper so that the inner side faces downward .
A printing unit for printing predetermined items on continuous paper guided along the guide route;
A cutter device that is disposed on the downstream side of the printing portion of the guide path and cuts continuous paper by meshing between a fixed blade and a movable blade that are disposed across the guide path;
A forced discharge portion formed by a narrow guide path that guides the continuous paper with a slight gap downstream of the guide path from the cutting position of the continuous paper by the cutter device;
With
The narrow guide path includes the remaining paper and the discharge so that the paper after printing issued after being cut by the cutter device remaining in the guide path is discharged following the continuous paper that is newly discharged and conveyed. contacting the continuous paper conveyed, printer. The narrow guide path includes a guide surface formed on one of the fixed blade and the movable blade disposed below the narrow guide route, and a regulating member that is close to and faces the guide surface. The printer according to claim 1 , wherein the printer is formed therebetween. The printer according to claim 2 , wherein a gap between the guide surface and the regulating member is 0.3 mm to 0.9 mm. A lower unit having a platen constituting a part of the printing unit, and the movable blade;
An upper unit that is rotatably attached to the lower unit and is positioned on the rotation free end side, and forms a part of the print unit, the fixed blade, and the restriction member.
The printer according to claim 2 or 3 , further comprising: The restricting member opens the fixed blade in a state where the upper unit is closed with respect to the lower unit and a protection position that covers the fixed blade in a state where the upper unit is rotated and opened with respect to the lower unit. Formed by a cutter cover that is pivotably mounted between the open position and
A biasing member that biases the cutter cover to the protection position;
A cam mechanism for rotating the cutter cover to the open position by a cam action as the upper unit is closed with respect to the lower unit;
The printer according to claim 4 , further comprising: The lower unit is according to claim 4 or 5, wherein the printer comprises the sheet storing section.

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