JP2000289272A - Printer, - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate loading and handling papers, simplify a structure and enhance a reliability by setting a print head for printing to papers to a lid body, and a platen roller for pressing the papers into contact with the head from below in front of a paper storage part of a printer body. SOLUTION: A remaining paper amount detection regulation member 14 is set to an inner side face of a paper storage part 12. A paper reception roller 15 is rotatably mounted for preventing a paper from clogging at a narrow part when the paper is transferred forward in a direction to a delivery opening. A platen roller 16 for pressing the paper into contact with a print head 19 is set and coupled to a driving means in front of the paper reception roller 15. A cutter fixed edge 22 is kept waiting in front of the roller 16 in a state in which the edge is pressed in contact with a cutter movable edge 23 at the right outside of the paper delivery opening. The edge 23 is set so that it can be driven by the driving means along the edge 22 to traverse the paper delivery opening. The print head 19 connected to a control circuit unit 28 for printing to the paper is mounted to a lid frame body 5 constituting a lid body 4 with a lid body case 6 set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer for mainly issuing tickets by printing and cutting continuous paper.

[0002]

2. Description of the Related Art The above-mentioned printers have been reduced in size and cost with the passage of time, but have also been required to be easier to operate.

In such a conventional printer, when paper is loaded, it is necessary to hold a paper end between a print head and a platen roller. To facilitate this, a print head is attached to a printer body. A platen or platen roller for performing cueing and transport of the paper and pressing the paper against the print head from above is provided on a lid body that is attached to the printer body so that it can be opened and closed. Provided on the lid, the movable cutter blade is provided on the printer main body, so that when loading paper, the paper is mounted on the printer main body, the paper end is placed so that the paper end comes out of the paper discharge port, and then the lid is closed. And the paper can be easily loaded without inserting the paper end between the print head and the platen roller. Unishi which was. However, such a linter has relatively good operability when loading paper, but lacks consistency because the fixed cutter blade and the movable cutter blade are separately mounted on the printer main body and the lid, respectively. There was a possibility that the cutting would not be smooth enough. Also, after printing, the paper discharged from the paper discharge port has a printing surface on the lower side, so that the printed result is difficult to see.

Alternatively, a print head, a platen roller for performing cueing and transport of the paper, and pressing the paper against the print head from above are provided in the printer body, and the lid is pressed against the platen roller. A pressure roller, and a pressure roller urging member for urging the pressure roller so that the pressure roller presses the sheet against the platen roller.
By providing the fixed cutter blade and movable cutter blade in the printer body, the cover is closed with the paper edge extended, and the paper is automatically moved between the print head and the platen roller, and the fixed cutter blade and movable cutter blade. It was configured to be loaded between the blade. However, such a linter has drawbacks in that the operability in loading paper is relatively good, but the structure is complicated, and the reliability of operation is insufficient such that loading cannot be performed depending on the state of the paper edge. Was. Also,
After printing, the paper discharged from the paper discharge port has a printed surface on the lower side, so that the printed result is difficult to see.

Next, a first conventional example will be described with reference to FIGS. 13 and 14. FIG. FIG. 13 is a cross-sectional view showing a state in which a cover is opened and a sheet is mounted in the first conventional example. FIG. 14 is a cross-sectional view showing a state where the lid is closed from the state of FIG.

In FIGS. 13 and 14, a print head 119 and a cutter movable blade 1 are attached to a printer main body 101.
A platen roller 116 for pressing the paper 138 against the print head 119 and transporting the paper 138 and a movable cutter blade 12
3 for cutting the paper 138 by engaging with the fixed blade 3
2 are provided.

In FIG. 13, a sheet 138 is mounted on the printer main body 101, and the sheet end 138a is connected to the sheet outlet 108.
When the user pulls out the cover 104 and rotates and closes the cover 104, the paper 138 is sandwiched between the print head 119 and the platen roller 116, and the paper end 138a is connected to the cutter fixing blade 122, as shown in FIG. The paper is loaded while passing through the movable blade 123 and coming out of the paper discharge port 108.

Next, a second conventional example will be described with reference to FIGS. 15, 16 and 17. FIG. FIG. 15 is a cross-sectional view showing a state where the cover is opened and a sheet is loaded. FIG.
FIG. 16 is a cross-sectional view showing a state where the lid is closed from the state of FIG. FIG. 17 is a cross-sectional view illustrating a state in which the sheet edge is automatically caught from the sheet discharge port from the state of FIG.

In FIG. 15, the cover 204 is opened, the paper 238 is placed in the paper storage section, and the paper end 238 of the paper 238 is opened.
a through the platen roller 216 and the paper discharge port 20
After that, the cover 204 is closed, and the cover 204 is closed. When the cover 204 is closed, as shown in FIG.
Is sandwiched between the platen roller 216 and the paper holding roller, and the paper end 238 a projects above the paper discharge port 208. The paper 238 is the platen roller 21
6 and the paper holding roller, the lid closing detecting means sends a lid closing signal, and the paper detecting means detects that the paper 238 is mounted near the print head 219. Sends a paper loading signal to the control circuit.

The control circuit that has received the cover closing signal and the sheet mounting signal rotates the platen roller 216 to pull back the sheet 238 sandwiched between the platen roller 216 and the sheet holding roller. The sheet end 238 a of the sheet 238 that has been pulled back is removed from between the platen roller 216 and the sheet holding roller and pressed against the outer periphery of the platen roller 216, and the rotating platen roller 216 is rotated.
Is moved between the print head 219 by the outer periphery of
It is sandwiched between a platen roller 216 and a print head 219.

When the sheet end 238a is sandwiched between the platen roller 216 and the print head 219, and the sheet end 238a sent out by the rotation of the platen roller 216 reaches the sheet end detecting means, the sheet end detecting means changes to the platen roller 216. Between paper edge and print head 219
It detects that the sheet 38a has been pinched, and sends a sheet end detection signal to the control circuit. The control circuit that has received the sheet edge detection signal starts counting the sheet feed amount from that point.
The continuously rotating platen roller 216
8 is further fed, and the sheet end 238a is discharged from the sheet discharge port 208 through the space between the cutter fixed blade 222 and the cutter movable blade 223.

The rotating platen roller 216 starts counting the sheet feed amount, stops feeding the sheet 238 by a preset sheet feed amount, and then stops.
Accordingly, the sheet end 238 discharged from the sheet discharge port 208
In FIG. 17A, as shown in FIG. 17, the discharge is stopped in a state in which the protrusion is performed according to a predetermined protrusion amount.

[0013]

As described above, the operation of loading paper is relatively easy in the prior art, but the reliability is insufficient due to the complicated structure. Further, since the print head is located below the paper, the lower side of the paper discharged from the paper outlet after printing is the printing surface. Therefore, there is an inconvenience that it is difficult to immediately see the printing result.

SUMMARY OF THE INVENTION An object of the present invention is to provide a printer which is easier to load paper, has a simpler structure and is more reliable, and allows the user to see the print result immediately after printing. Another object of the present invention is to obtain a printer that discharges paper from a paper outlet with a print surface facing upward.

[0015]

In order to achieve the above object, according to the present invention, there is provided a printer main body having a paper storage portion for holding paper, and a printer main body which is openably and closably mounted on the printer main body for loading the paper. With a lid that is
In a printer having a paper discharge port between a printer main body and a lid, the lid has a print head for printing on the paper, and the printer main body lowers the paper in front of the paper storage unit. And a platen roller for pressing against the print head.

Further, the present invention is characterized in that a platen roller urging member for urging the platen roller so that the platen roller presses the sheet against the print head is provided.

Further, the paper is a roll paper.

Further, a paper receiving roller for preventing movement of the paper and smoothing the rotation of the roll paper is provided between the paper storage section and the platen roller.

The print head is a thermal print head that prints on the paper by heating.

Further, the printer body is provided with a lid closing detecting means for detecting that the lid is closed.

Further, a paper mounting detecting means for detecting that a paper is mounted near the print head is provided.

Further, the paper mounting detecting means is of a light reflection type.

Further, a cutter fixed blade provided near the paper discharge port for cutting the paper, and a cutter movable blade for cutting the paper between the cutter fixed blade are provided. It is assumed that.

Further, the cutter movable blade is located at a position retracted from the sheet discharge port during standby and cuts the sheet while moving along the cutter fixed blade during operation. It is.

Further, the cutter movable blade is formed in a disk shape and is rotatably supported by a shaft.

Further, a control circuit unit is provided below the paper storage unit.

Further, an opening is provided at a lower portion of the sheet storage portion, and a circuit lid for closing the opening is attached to the opening so as to be freely opened and closed.

Further, the printer body is provided with a brake means for preventing the lid from closing suddenly.

Further, the print head is connected to the control circuit unit by a lead wire, and the lead wire is wired so as to pass near the center of rotation of the lid. Is what you do.

A portion of the lead wire passing near the center of rotation of the lid is covered with a cover member.

Further, the printer main body is provided with a lid releasing key for keeping the lid closed and releasing it by operating.

Further, the printer body is provided with a paper feed button for transporting the paper pressed against the platen roller and the print head in a discharge direction.

Further, the paper discharge port, the cover release key, and the paper feed button are provided on a front surface of the printer body.

Further, the paper storage section has a paper guide member mounting section for detachably mounting a paper guide member for guiding a narrow paper sheet.

Further, the paper guide member is detachably attached to the paper storage section.

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on an embodiment with reference to the drawings. FIG. 1 is a perspective view showing a state of a printer according to an embodiment of the present invention as viewed obliquely from above. FIG. 2 is a perspective view showing a state where the lid 4 is opened from FIG. FIG. 3 is an enlarged perspective view showing a portion B in FIG. 2 in an enlarged manner. FIG. 4 is a cross-sectional view of FIG.
It is sectional drawing which shows the state of the A line cross section. FIG. 5 is a perspective view showing a configuration of a brake means for preventing a part of FIG. 2 from being partially cut away to prevent the lid from closing suddenly. FIG.
FIG. 3 is a perspective view illustrating a configuration of a circuit cover with a circuit cover forming a bottom portion of the sheet storage unit of FIG. 2 removed. FIG. 7 is a perspective view showing a state in which a paper guide member for guiding a narrow paper sheet is attached to the paper storage section of FIG.

FIG. 8 is a perspective view showing a state where a sheet is inserted in the state shown in FIG. FIG. 9 is a perspective view illustrating a state in which the cover is closed with the sheet end protruding from the sheet discharge port from the state of FIG. 2. FIG. 10 is a sectional view showing a state of a section taken along line CC in FIG. FIG. 11 is an enlarged perspective view showing a portion D in FIG. 9 in an enlarged manner. FIG. 12 is a perspective view showing a state in which the movable cutter blade moves from the state in FIG. 11 to cut the sheet.

Referring to FIG. 1, the appearance of one embodiment of the present invention will be described. A lid 4 is attached to the upper surface of the main body 1 so as to be openable and closable, and the lower surface is fitted to the power adapter case 36 to be overlaid. On the front surface of the main body 1, a lid release key 7 for releasing the state where the lid 4 is locked in a closed state and opening the lid 4 is provided. Also, a paper feed button 11 for discharging a paper 38 to be described later from a paper discharge port 8 to be described later by pressing with a finger or the like, a power indicator 9 for displaying a power-on state, and an error An error indicator lamp 10 is provided to indicate that the operation has been performed. Further, a paper discharge port 8 for discharging the printed paper 38 is formed between the main body 1 and the lid 4.

As described above, all the operation members and the display members are arranged on the front surface, and there are no operation members and display members on the upper surface. It does not cause any trouble. In addition, since all operation members and display members are arranged on the front, even if other equipment is arranged in front, rear, left and right, the display members can be seen and the operation members can be operated, so that The degree of freedom is high and the arrangement space can be used effectively.

Referring to FIG. 2, an outline of the structure of one embodiment of the present invention will be described. The body 1 has a paper 38 described later.
Is formed in the sheet storage section 12 for storing the sheet. A circuit cover 13 for exchanging a ROM provided in a control circuit unit 28 to be described later and performing a DIP switch switching operation is detachably attached to the bottom surface of the sheet accommodating section 12. A paper remaining amount detection adjusting member 14 for detecting the remaining amount of paper is provided on the inner side surface of the paper storage unit 12. In front of the paper storage unit 12, it is necessary to prevent the paper 38 stored in the paper storage unit 12 from climbing on the front wall when being conveyed in the direction of the paper discharge port 8 and clogging in a narrow portion to stop rotation. A paper receiving roller 15 for prevention is rotatably mounted.

In front of the paper receiving roller 15, a platen roller 16 for pressing a paper 38 against a print head 19 described later is rotatably mounted. Also,
The platen roller 16 is connected to platen roller driving means (not shown) for driving the platen roller 16 to rotate. A cutter fixed blade 2 is provided in front of the platen roller 16.
2 is provided in parallel with the platen roller 16.
A movable cutter blade 23 is on the right outer side of the paper discharge port 8 and stands by while being pressed against the fixed cutter blade 22. The movable cutter blade 23 is connected to cutter movable blade driving means (not shown), and runs along the fixed cutter blade 22 so as to be able to cross the paper discharge port 8.

The lid 4 is configured by attaching a lid case 6 to a lid frame 5. A print head 19 for printing on paper 38 is attached to the lid frame 5. The print head 19 includes a lead wire 20 (not shown).
Are connected to a control circuit unit 28 described later.

Referring to FIG. 3, the configuration of the sheet discharge port 8 and its surroundings will be further described. As described above, the platen roller 16 for pressing the paper 38 against the print head 19 described later is rotatably mounted. A cutter fixed blade 22 is provided adjacent to the front of the platen roller 16 in parallel with the platen roller 16. Further, an edge is formed at the upper front. A movable cutter blade 23 is provided on the right outer side of the paper discharge port 8 in a state of being pressed against the fixed cutter blade 22, travels along the fixed cutter blade 22, and is provided so as to cross the paper discharge port 8. Have been. FIG.
When the cover 4 is open as shown in FIG. 2, a cutter cover 24 that covers the edge of the cutter fixing blade 22 is provided, and the cutter cover 24 closes as shown in FIG. It is configured to evacuate from the state covering the edge when it is in the state.

Referring to FIG. 4, the structure of one embodiment of the present invention will be described. The main body 1 includes a frame 2 and a main body case 3
And a sheet accommodating portion 12 for accommodating a sheet 38 described later. Paper storage unit 1
2 has a circuit cover 1 for removing the ROM attached to the lower control circuit unit 28 by removing it and performing a switching operation of the DIP switch.
3 is detachably attached. On one inner side surface of the paper storage unit 12, a paper remaining amount detection adjustment member 14 for detecting that the roll paper, which is the paper 38 stored in the paper storage unit 12, has been used is provided. .
An optical sensor is attached to the lower end of the paper remaining amount detection adjusting member 14, and a knob and a claw are formed at the upper end. On the inner side surface of the main body 1, the claws are "1""2""3""4"
Notches for positioning at four positions are formed. There are several types of roll paper core diameters. By adjusting the position of the knob according to the roll paper core diameter of the accommodated roll paper, the remaining amount of various types of roll paper can be optimally detected.

In the vicinity of the paper discharge port 8 provided on the front surface of the main body 1, the paper 38 is transferred to a print head 19 to be described later.
A platen roller 16 for rotating the platen roller 16 for rotating the platen roller 16 is connected to the platen roller 16 for rotating the platen roller 16 while the platen roller 16 is in contact with the platen roller. Also, the platen roller 16
Are mounted on the frame so as to be slidable in the vertical direction, and the bearing member is moved upward by a platen urging lever 17 urged by a platen urging member 18. And presses the paper 38 into close contact with the print head 19 described later.

The cover 4 is constituted by a cover frame 5 and a cover case 6, and as shown in FIG. Mounted movably. A print head 19 is attached to the lid frame 5 so as to contact the platen roller 16 when the lid 4 is closed to the main body 1.

A power adapter case 36 is provided on the lower surface of the main body 1.
And a power adapter 37 is housed inside the power adapter case 36. The power adapter 37 and the main body 1 are connected via a cord and a connector.

Referring to FIG. 5, the structure of the brake means 26 for preventing the lid 4 from closing suddenly will be described. The lid 4 can be freely opened and closed with respect to the main body 1 by the lid frame rotation supporting portion 5b provided on the lid frame 5 being rotatably attached to the frame 2 by the lid shaft 25. I have. A brake sliding portion 5c is formed on the lid frame rotation supporting portion 5b by slightly projecting. on the other hand,
A brake means 26 is attached to the frame 2. The brake means 26 is formed of plastic and has a slit. The slit of the brake means 26 sandwiches the portion of the brake sliding portion 5c of the lid frame rotation supporting portion 5b so as to press against the front and back surfaces. Therefore, the brake means 26 applies the brake to the lid frame rotation support portion 5b, so that the lid 4 does not close rapidly by its own weight, and does not inadvertently injure the operator's hand.

Referring to FIG. 6, the structure of the circuit cover 13 forming the bottom of the sheet storage section 12 will be described. In this type of printer, the operation program may be changed and the operation mode conditions may be switched. Therefore, it is necessary that these operations can be easily performed. Generally, when changing the operation program, the ROM is exchanged, and when changing the condition of the operation mode, the DIP switch is operated. In the present embodiment, as shown in FIG. 2, the bottom of the paper storage unit 12 is used to replace the ROM attached to the lower control circuit unit 28 by removing it, and to perform the DIP switch switching operation. The circuit cover 13 is detachably attached.

FIG. 6 shows a state in which the circuit cover 13 has been removed from the bottom surface of the paper storage unit 12. Paper storage unit 12
From the opening 12a provided on the bottom surface of the
Is removed, the control circuit unit 28 disposed below the paper storage unit 12 is exposed, and the control circuit unit 28
It is possible to easily perform the replacement of the ROM attached to the device and the switching operation of the DIP switch.

Referring to FIG. 7, a configuration for attaching a paper guide member 27 for guiding a narrow paper 38 to the paper storage section 12 will be described. A guide member attaching portion 12b for attaching a sheet guide member 27 is formed on the bottom surface of the sheet accommodating portion 12, and the sheet guide member 27 is fitted to the guide member attaching portion 12b to attach the sheet guide member 27 to the sheet. A guide member protrusion 27a, which is a protrusion for attaching to the accommodation portion 12, is formed. Wide paper 38, for example, paper 38 with a width of 80 mm for the printer
Is loaded without attaching the paper guide member 27 to the paper accommodating section 12, the narrow paper 38,
For example, when the paper 38 having a width of 60 mm is loaded, the paper 38 is loaded with the paper guide member 27 attached to the paper storage unit 12. By attaching and detaching the paper guide member 27 in this manner, a plurality of widths of paper 38 can be loaded in the printer.

Referring to FIG. 8, a state in which the paper 38 is stored in the printer in the state of FIG. 2 will be described. In order to load the paper 38 into the printer shown in FIG.
Is pressed down, a cover locking member (not shown) that locks the cover locking portion 33 provided on the cover 4 is released, and the cover 4 is opened as shown in FIG. Subsequently, the paper 3 which is a roll paper is stored in the paper storage portion 12 formed in the main body 1.
Insert 8. When the paper 38 is inserted, the paper end 38a is oriented so as to turn upward from the rear of the roll paper and forward.

On the other hand, in a state where the lid 4 is open as shown in FIG. 8, in order to prevent inadvertent injury to fingers,
The cutter fixing blade 22 is covered by a cutter cover 29. A cutter cover operating end portion 29a (not shown) is formed at one end of the cutter cover 29.

Thereafter, as shown in FIG.
Is pulled out from the paper discharge port 8 a little, and then the lid 4 is closed. At this time, the cutter cover releasing projection 30 formed on the lid 4 pushes down the cutter cover operating end portion 29 a to retract the cutter cover 29 from the state where the cutter cover blade 22 is covered. .

The body 1 is provided with a lid closing detecting means 31 for detecting when the lid 4 is closed,
A lid closing projection 32 is formed on the lid 4, and the lid 4
Is closed, the lid closing detection means 31 is operated. The lid closing detecting means 31 is configured to detect that the lid 4 is closed, and to input a lid closing signal to the control circuit unit 28.

Also, when the lid 4 is closed,
When the paper 38 is placed in the paper storage section 12 and the paper end 38a is extended to the paper discharge port 8, a paper mounting detecting means 34 for detecting this is provided. When the sheet mounting detecting means 34 closes the cover 4, it is configured to detect that the sheet has been mounted and to input it to the control circuit unit.

In the case where the sheet end 38a is cut off with the cover 4 shown in FIG. 9 closed, the sheet end 38a can be picked up by grasping the left end or right end thereof and cut off by the sheet cutting saw blade 35.

Referring to FIG. 10, the state of the cross section taken along the line CC of FIG. 9 will be described. The roll paper portion of the paper 38 is supported by the bottom of the paper storage unit 12 on the lower side, and is supported by the paper receiving roller 15 on the front side, that is, the left side in FIG. The paper 3 pulled out from the roll paper portion
Reference numeral 8 denotes a platen roller 16 by a print head 19.
Pressed against. On the other hand, the platen roller 16 is urged upward by a platen urging member 18 via a platen urging lever 17. The platen roller 16 pushed downward by the print head 19 slightly escapes downward against the urging force of the platen urging member 18, but the paper 38 adheres to the print head 19 by the urging force of the platen urging member 18. It is pressed like so.

When a printing operation is performed in this state,
Alternatively, when the paper feed button 11 shown in FIG. 9 is pressed, the platen roller 16 rotates counterclockwise and the paper 38 is transported to the left. When the paper 38 is transported to the left, the roll paper portion of the paper 38 rotates counterclockwise while being pulled to the left while being supported by the bottom of the paper storage unit 12 and the paper receiving roller 15. Although the roll paper portion of the paper 38 is pulled to the left, the paper receiving roller 15 rotatably supported by the main body 1 rotates with the rotation of the roll paper portion of the paper 38, so that the paper 38 The roll paper portion can rotate smoothly without riding forward, that is, without riding on the left wall in FIG.

Referring to FIG. 11, a state in which the portion D in FIG. 9 is enlarged will be described. FIG. 11 shows a state in which the cover 4 is seen through to show the state of attachment of the paper 38. The paper end 38a is mounted so as to slightly protrude from the paper discharge port 8. The paper cutting saw blade 35 is provided above the paper end 38a, and the cutter fixing blade 22 is provided below. The cutter fixed blade 22 has an edge formed at the upper front. Further, a cutter movable blade 23 is on standby on the right side of the sheet discharge port 8. The movable cutter blade 23 is formed in a disk shape having an edge portion on the outer periphery, and is rotatably supported by a cutter carrier 23a. The cutter carrier 23a is connected to carrier driving means (not shown), and is configured to reciprocate across the paper 38. The lower side surface of the movable cutter blade 23 is pressed against the front surface of the edge of the fixed cutter blade 22 by an urging member (not shown).

Referring to FIG. 12, a state where the cutter movable blade 23 moves in the direction of arrow E from the state of FIG. 11 and cuts the sheet 38 will be described. When the printing operation is completed and the paper cutting operation is started, the movable cutter blade 23 moves in the direction of arrow E to cut the paper 38. When the outer peripheral edge of the movable cutter blade 23 is moved in the direction of arrow E while being pressed against the front surface of the edge of the fixed cutter blade 22, the edge of the movable cutter blade 23 and the edge of the fixed cutter blade 22 are moved. The paper 38 sandwiched between them is cut along with the movement of the movable cutter blade 23, and the paper 38 is completely cut when the movable cutter blade 23 exceeds the left end of the paper 38. However, by stopping the movable cutter blade 23 before the left end of the paper 38, it is possible to make a cut in the paper 38 and keep the paper connected to facilitate cutting. When the cutting of the paper 38 is completed, the movable cutter blade 23 travels in the direction opposite to the arrow E and returns to the original standby position and stops.

[0062]

As described above, the present invention comprises a printer main body having a paper storage portion for holding paper, and a lid which is openably and closably attached to the printer main body for loading the paper. A printer having a paper outlet between a printer main body and a lid, wherein the lid is provided with a print head for printing on the paper, and the printer main body lowers the paper in front of the paper storage portion. Is provided with a platen roller for pressing against the print head, the paper is loaded only by closing the lid while the paper is inserted into the paper storage portion and the paper edge is extended beyond the paper discharge port. be able to.

After printing, the upper side of the paper discharged from the paper outlet is the printing surface, so that the printing result can be immediately viewed.

Further, for example, the cutter fixed blade is provided on the lid, and the cutter movable blade is provided on the main body, and when the lid is closed, the engagement state between the cutter fixed blade and the cutter movable blade is optimally adjusted. The cutter fixed blade and the cutter movable blade are assembled to the main body with the mutual relative position being optimal, compared to the difficult to perform, so the engaged state of the cutter fixed blade and the cutter movable blade It is easy to make optimal adjustments, and the paper can be cut smoothly.

Further, since the lid is provided with the brake means for applying a brake, the lid does not close rapidly and the fingers are not accidentally injured by being sandwiched between the main body and the lid.

Further, since the circuit cover which can be opened and closed is provided at the bottom of the sheet storage portion, replacement of the ROM and operation of the DIP switch are easy.

Further, since a detachable paper guide member is provided in the paper storage portion, a plurality of widths of paper can be loaded by selecting attachment / detachment of the paper guide member.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a state of a printer according to an embodiment of the present invention when viewed obliquely from above.

FIG. 2 is a perspective view showing a state where a cover 4 is opened from FIG.

FIG. 3 is an enlarged perspective view showing a portion B in FIG. 2 in an enlarged manner.

FIG. 4 is a sectional view showing a state of a section taken along line AA in FIG. 1;

FIG. 5 is a perspective view showing a configuration of a brake means for preventing a cover from being abruptly closed by cutting a part of FIG. 2;

FIG. 6 is a perspective view showing a configuration of the circuit cover with a circuit cover forming a bottom portion of the sheet storage section of FIG. 2 removed.

7 is a perspective view showing a state in which a paper guide member for guiding a narrow paper sheet is attached to the paper storage section of FIG. 2;

FIG. 8 is a perspective view showing a state where a sheet is inserted into the state of FIG. 2;

FIG. 9 is a perspective view showing a state in which a cover is closed with the sheet end protruding from a sheet discharge port from the state of FIG. 8;

FIG. 10 is a sectional view showing a state of a section taken along line CC in FIG. 9;

FIG. 11 is an enlarged perspective view showing a state where a portion D in FIG. 9 is enlarged and a lid is seen through;

12 is a perspective view showing a state where the movable cutter blade moves from the state shown in FIG. 11 to cut the sheet.

FIG. 13 is a cross-sectional view showing a state in which a cover is opened and a sheet is loaded in the first conventional example.

FIG. 14 is a cross-sectional view showing a state where the lid is closed from the state of FIG.

FIG. 15 is a cross-sectional view showing a state in which a cover is opened and a sheet is mounted in a second conventional example.

FIG. 16 is a cross-sectional view showing a state where the lid is closed from the state of FIG.

FIG. 17 is a cross-sectional view illustrating a state in which the sheet edge is automatically caught from the sheet discharge port from the state of FIG. 16;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Frame 3 Main body case 4 Lid 5 Lid frame 5a Lid locking part 5b Lid frame rotation supporting part 5c Brake sliding part 6 Lid case 7 Lid release key 8 Paper discharge port 9 Power display Light 10 Error indicator light 11 Paper feed button 12 Paper storage unit 12a Opening 12b Guide member mounting unit 13 Circuit cover 14 Paper remaining amount detection adjusting member 15 Paper receiving roller 16 Platen roller 17 Platen urging lever 18 Platen urging member 19 Print head 20 Lead wire 21 Cover member 22 Cutter fixed blade 23 Cutter movable blade 23a Cutter carrier 24 Cutter cover 25 Lid shaft 26 Brake means 27 Paper guide member 27a Guide member protrusion 28 Control circuit unit 29 Cutter cover 29a Cutter cover operating end Part 30 Cutter cover release projection 31 Lid Flip detecting means 32 the lid closed protrusions 33 the lid locking portion 34 sheet attachment detection unit 35 sheet cut for saw teeth 36 power adapter case 37 power adapter 38 sheets 38a paper edge

Continued on front page F-term (reference) 2C058 AB12 AC06 AD09 AE04 AE10 AF06 AF31 AF51 DA10 LA03 LA23 LA26 LB10 LB12 LB17 LB18 LB35 2C060 BA03 BA10 BB13 BC02 BC12 BC38 BC96 3F052 AA01 AB12 BA02 BA27 DA01

Claims (21)

[Claims] 1. A printer main body having a paper storage portion for holding paper, and a lid which is openably and closably attached to the printer main body for loading the paper, wherein a lid is provided between the printer main body and the lid. In a printer having a paper discharge port, the lid body has a print head for printing on the paper, and the printer main body presses the paper against the print head from below in front of the paper storage unit. A printer comprising a platen roller. 2. The printer according to claim 1, further comprising a platen urging member for urging the platen roller so that the platen roller presses the sheet against the print head. 3. The printer according to claim 1, wherein the paper is a roll paper. 4. The printer according to claim 3, further comprising a paper receiving roller between the paper storage portion and the platen roller for preventing the paper from moving and smoothing the rotation of the roll paper. 5. The printer according to claim 1, wherein the print head is a thermal print head that prints on the sheet by heating. 6. The printer according to claim 1, wherein said printer main body is provided with a lid closing detecting means for detecting that said lid is closed. 7. The printer according to claim 1, further comprising a paper mounting detection unit that detects that paper is mounted near the print head. 8. The printer according to claim 7, wherein said paper mounting detecting means is of a light reflection type. 9. A cutter fixed blade for cutting the sheet close to the sheet discharge port, and a cutter movable blade for cutting the sheet between the cutter fixed blade and the cutter fixed blade. The printer according to claim 1. 10. The cutter movable blade is located at a position retracted from the sheet discharge port during standby and cuts the sheet while moving along the cutter fixed blade during operation. Item 9. The printer according to Item 9. 11. The blade according to claim 1, wherein the movable cutter blade is formed in a disk shape and is rotatably supported.
0 printer. 12. The printer according to claim 1, wherein a control circuit unit is provided below the paper storage unit. 13. The paper container according to claim 12, wherein an opening is provided at a lower portion of the paper storage unit, and a circuit cover for closing the opening is openably and closably attached to the opening. Printer. 14. The printer according to claim 1, wherein the printer main body is provided with a brake means for preventing the lid from closing suddenly. 15. The print head is connected to the control circuit unit by a lead wire, and the lead wire is wired so as to pass near the center of rotation of the lid. 13. The printer according to claim 12, wherein 16. The printer according to claim 15, wherein a portion of the lead wire passing near the center of rotation of the lid is covered by a cover member. 17. The printer according to claim 1, wherein the printer main body is provided with a lid releasing key for releasing the lid by keeping the lid closed. . 18. A printer according to claim 1, wherein said printer body is provided with a paper feed button for transporting said paper pressed against said platen roller and said print head in a discharge direction. Printer. 19. The printer according to claim 17, wherein the sheet discharge port, the cover release key, and the sheet feed button are provided on a front surface of the printer body. 20. The printer according to claim 1, wherein the sheet storage section has a sheet guide member attaching section for detachably attaching a sheet guide member for guiding a sheet having a small width. 21. The printer according to claim 1, wherein the paper guide member is detachably attached to the paper storage unit.