JP2001260474A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a thermal transfer printer and to improve efficiency of assembling work for a driving system of a recording paper and a driving system of a thermal head. SOLUTION: A recording paper attaching/detaching means for attaching or detaching a recording cassette 13 is provided to a front face of the printer 11 and a power source attaching/detaching means for attaching or detaching a power source section of a battery 22 is provided to a rear face of the printer body 11. An ink ribbon insertion hole 17 for attaching or detaching an ink ribbon cassette 16 is provided to one side of the printer body 11. A driving mechanism for driving the recording paper or an ink ribbon to be housed in the printer body 11 and a driving mechanism for driving a thermal head holding member are independently built in different frame units to be assembled. The independently assembled frame units are coupled with a coupling means to be built in the printer body 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal transfer type printer device which is small and portable and has improved recording sheet conveying function and assembling efficiency of a driving mechanism of a thermal head holding member.

[0002]

2. Description of the Related Art In recent years, a digital still image signal captured and generated by an electronic camera or image data (hereinafter, simply referred to as an image signal) generated by a computer device is displayed on a monitor such as a cathode ray tube or a liquid crystal element, and recorded on a recording paper. Image printing is also performed.

[0003] A printer apparatus for printing the image of the image signal on a recording sheet is configured such that an ink ribbon obtained by applying a heat transfer ink having a heat melting property or a heat sublimation property on a thin film film and a recording sheet are superimposed on a platen roller; The thermal head is transported while being pressed and sandwiched by a platen roller and a thermal head. During the transport, the image is formed on the thermal head in which a plurality of heating elements are arranged in a line in a longitudinal direction in a direction orthogonal to a transport direction of the recording paper. In this method, a heating current corresponding to a signal is applied to melt or sublimate the thermal transfer ink on the ink ribbon to transfer and print on recording paper.

This type of printer apparatus includes a thermal head holding member to which a thermal head is fixed, head driving means for driving the thermal head holding member, a platen roller for receiving the thermal head, and a recording sheet sent in the direction of the platen roller. A paper feed roller, a roller driving means for driving the paper feed roller, an ink ribbon mounted from an ink ribbon cassette insertion opening, a driving source for supplying a driving force to the head driving means and the roller driving means, and recording. A transport drive system for transporting the paper and the ink ribbon, a drive circuit for the thermal head, and the like are incorporated in the housing of the printer device.

[0005]

When the above-mentioned transport drive system and the circuit drive system of the thermal head, which constitute the conventional printer device, are installed in a housing, the order of installation must be clearly set before the installation work. Do. However,
The assembling order is determined in advance in a complicated manner, and is easily mistaken. In addition, when the installation space in the housing is narrow, the installation work is difficult to perform in addition to the above, and the assembling work of the printer device takes time, and the work efficiency is reduced.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to improve the efficiency of assembly work by individually assembling the drive systems and combining the individually assembled drives.

[0007]

According to the present invention, there is provided a printer apparatus comprising: a thermal head holding member to which a thermal head is fixed; a first drive source; and a thermal head holding member based on a driving force from the drive source. A first driving unit for driving the recording head, a platen roller for receiving the thermal head, a pair of paper feed rollers for feeding recording paper in the direction of the platen roller, and the paper feed A pair of side walls supporting the roller at both ends, a second drive source, and a second drive source disposed on one of the side walls;
A second driving means for driving the paper feed roller based on the driving force from the driving source, and an insertion opening for inserting the ink ribbon cassette in the direction of one of the side walls disposed on the other of the side walls. A second frame unit, wherein the first and second frame units are connected and fixed.

The printer device of the present invention is a portable printer device having a detachable recording paper cassette, wherein the second frame unit includes the paper feed roller on the side opposite to the first frame unit. Characterized in that a mounting / detaching means for mounting / detaching the cassette is provided at a position opposed to the cassette.

In the printer device of the present invention, the other side wall portion into which the ribbon cassette is inserted is made of a member which is not easily rusted or a member which has been treated to prevent rust.

The thermal head holding member of the printer device of the present invention is provided rotatably with respect to the first frame unit, and has a mounting member for mounting a detachable power supply at a base end side thereof. It is characterized by being.

According to the printer of the present invention, the drive system arranged in the first frame unit and the drive system arranged in the second frame unit are individually assembled, and the assembled first and second frames are assembled. It is possible to provide a printer device that can reduce the efficiency of assembly work only by connecting and fixing units. Further, even if an error occurs in the assembly, it is possible to provide a small and thin printer capable of performing an error correction operation for each frame unit.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an exploded perspective view showing the internal configuration of an embodiment of the printer device according to the present invention, FIG. 2 is a perspective view illustrating the configuration of a chassis used in the printer device according to the present invention, and FIG. FIG. 4 is a perspective view illustrating a relationship between the printer device and a power supply unit, and FIG. 4 is a perspective view illustrating an external configuration of the printer device according to the present invention.

First, regarding the external configuration of the printer device,
This will be described with reference to FIG. Reference numeral 11 in FIG. 4 denotes a printer device (hereinafter, referred to as a device main body), which has a substantially rectangular cubic shape as a whole, and the device main body 11 is formed by an upper exterior portion 11a and a lower exterior portion 11b. An input operation display unit 12 including an input switch for inputting various operations and a display unit indicating an operation operation state, and a heat radiating port for radiating heat generated inside the apparatus main body 11 are formed on the upper surface of the upper exterior unit 11a. ing. A cooling fan (not shown) is provided inside the heat radiation port.

At the front of the apparatus main body 11, a recording paper cassette 13 is attached and detached, and a recording paper insertion port 14 for inserting the recording paper stored in the recording paper cassette 13 into the printer apparatus 11 is provided. When the recording paper cassette 13 is not mounted, the recording paper insertion opening 14 is covered with a recording paper insertion opening cover 15. The recording paper cassette 13 has a storage section for storing a plurality of recording papers (not shown), and an elastic member (not shown) for pushing up the stored recording papers from the lower surface to the upper surface. A cover member for covering the upper surface side of the recording paper stored in the storage portion, and a cover member on the side where the recording paper cassette 13 is inserted into the recording paper insertion opening 14 of the apparatus main body 11 are formed by partially removing the lid member. A recording paper outlet is provided. The recording paper pull-out port is fitted with a recording paper pull-out roller 31 provided in the recording paper insertion port 14, and presses the recording paper pressed upward by the elastic member against the recording paper pull-out roller 31. In addition, the recording paper withdrawal roller 31 is rotated so that the recording paper is conveyed one by one into the apparatus main body 11.

An ink ribbon insertion opening (hereinafter, referred to as an ink ribbon insertion opening) 17 for inserting an ink ribbon cassette 16 into a predetermined position in the apparatus main body 11 is provided on a right side surface of the apparatus main body 11 in the drawing. The ink ribbon insertion opening 17 is covered with an ink ribbon insertion opening lid 18. In the ink ribbon cassette 16, a plurality of colors such as yellow (Y), magenta (M), cyan (C), and transparent overcoat ink (OP) for thermal transfer were sequentially and repeatedly applied on a thin film. An ink ribbon, a supply reel accommodating section accommodating a supply reel (not shown) around which the ink ribbon is wound, a take-up reel accommodating section accommodating a take-up reel (not shown) for winding the ink ribbon, and The ink ribbon stretched between the supply reel storage section and the take-up reel storage section is exposed, and has an opening through which a thermal head described below is pressed. The ink ribbon insertion opening 17 is a substantially similar opening into which the ink ribbon cassette 16 is inserted, and has a shape that facilitates insertion of the ink ribbon cassette 16 and prevents erroneous insertion at the time of insertion.

A recording medium insertion slot (not shown) into which a recording medium 19 is inserted is provided on the left side of the apparatus main body 11 in the drawing.
A PC interface connector (not shown) to which the C interface plug 20 is connected and a DC inlet connector (not shown) to which the DC inlet plug 21 is connected are provided. The recording medium 19 is a card-type recording medium having a built-in semiconductor memory in which image data captured by a digital still image capturing device or a moving image capturing device (not shown) is stored. The image data recorded on the recording medium 19 is read out. The PC interface plug 20 is connected to a computer device (not shown), and computer graphic image data generated by the computer device is transmitted to the apparatus main body 11 via a PC interface connector.
This is the interface to import to. The DC inlet plug 21 rectifies a commercial AC power supply, converts it into a predetermined DC power supply, and supplies drive power for driving various signal processing circuits and various drive functions of the apparatus main body 11 via a DC inlet connector. It is.

A battery 22 is mounted on the back of the apparatus main body 11 in the figure. A rechargeable or non-rechargeable battery (not shown) is housed inside the battery 22, and a contact 23 connected to the housed battery and a fixing piece for detachably fixing the battery 23 to the back of the apparatus body 11. 24a to 24c and a locking hole 25 are provided.
A contact 2 of the battery 22 is provided on the back of the device body 11.
3 and a contact piece (not shown)
An unillustrated engagement piece with which 4a to 24d are engaged is provided. When the drive power is not supplied from the DC inlet plug 21, the battery 22
It supplies various drive power for the apparatus main body 11.

One end of the recording paper insertion opening cover 15 and one end of the ink ribbon insertion opening cover 18 are formed to be openable and closable by a hinge or a hinge shape on the apparatus main body 11, and the other end is locked by a locking piece. It has become so.

Next, the internal structure of the apparatus main body 11 will be described with reference to FIGS. FIG. 2 shows the main body 1 of the apparatus.
1 shows only a chassis and a recording paper guide member constituting one housing. At the front of the apparatus main body 11, the recording paper insertion port 14 is provided, and a detaching means for attaching and detaching the recording paper cassette 13 is provided, and the recording paper is supplied from a recording paper outlet of the recording paper cassette 13. A recording paper extraction roller 31 to be extracted is provided. The recording paper pull-out roller 31 is provided on the left and right side wall portions (hereinafter, referred to as a housing) of the apparatus main body 11.
Left and right chassis 32a and 32b are rotatably mounted on shafts, and are described later.
Is rotated in a direction in which the recording paper is supplied from the recording paper cassette 13 into the main body 11 of the drawing device.

Behind the recording paper pull-out roller 31, a recording paper pulled out from the recording paper cassette 13 is sandwiched.
A pressure roller 33 as a pair of paper feed rollers and a transport roller 34 for feeding recording paper are provided inside the apparatus main body 11. The pressing roller 33 is moved by a thermal head and a first driving unit 41 for driving the pressing roller 41, which will be described later, to a holding position for holding the recording paper by being pressed by the conveying roller 34 and a retracting position for retreating from the conveying roller 34. At the same time, it rotates following the rotation of the transport roller 34. The transport roller 34 is provided between the left and right chassis 32a, 32b.
The transport roller shaft 34a is rotatably supported by a roller, and is rotated in a direction in which the recording paper is transported into the apparatus main body 11 and in a direction in which the recording paper is discharged by a second drive means 49 for driving the transport roller described later. ing.

Behind the transport roller 34, a platen roller 35 is rotatably supported by left and right chassis 32a, 32b. Above the platen roller 35, a thermal head 37 is disposed.
The recording paper nipped and transported by the transport roller 3 and the transport roller 34 and the ink ribbon of the ink ribbon cassette 16 are held by a platen roller 35 to perform thermal transfer printing.

The thermal head holding member 38 includes a thermal head holding portion 38 a formed in parallel with the longitudinal direction of the thermal head 37 and a thermal head holding portion 3.
8a is formed in a substantially T-shape by an arm portion 38b extending from a substantially middle portion in a direction substantially perpendicular to the longitudinal direction and curved, and the thermal head 37 is orthogonal to the transport direction of the recording paper and the ink ribbon. Then, it is fixedly attached to the thermal head holding portion 38a. A rotating shaft 38c is fixed to the other end of the arm portion 38b of the thermal head holding member 38, and the rotating shaft 38c is
It is rotatably fixed to the shafts 7a and 47b. The thermal head holding member 38 is tensioned by an elastic member 38d about a rotation shaft 38c so that the thermal head 37 is separated from the platen roller 35. A cam portion 38e is provided near the curved vertex at the other end of the arm portion 38b of the thermal head holding member 38. The cam portion 38e has a first driving means 4 described later.
In step 1, the thermal head 37 is moved to a holding position for holding the ink ribbon and the recording paper on the platen roller 35 about the rotation shaft 38c against the tension of the elastic member 38d. It has become.

The right chassis 32a has an ink ribbon insertion slot 17 into which the ink ribbon cassette 16 is inserted.
(See FIGS. 2 and 4), and the ink ribbon cassette 16 inserted through the ink ribbon insertion port 17 is inserted.
The opening of the ink ribbon cassette 16 is located below the thermal head 37, and the supply and take-up reels provided in the supply reel storage section and the take-up reel storage section of the ink ribbon cassette 16 are connected to the left chassis 32.
b is fitted to the reel shafts 36a and 36b arranged inside. The reel shafts 36a and 36b are driven to rotate by third driving means 51 described later to supply the ink ribbon from the supply reel to the take-up reel.

The left connecting piece 47b is provided with a second motor 48 for driving the transport roller 34. The driving shaft of the second motor 48 is made to pass through the left connecting piece 47b. The second driving means 49 including a plurality of gears including a gear attached to the belt and a belt is provided on the left chassis 3.
2b. This second driving means 49
The rotational driving force decelerated to a predetermined rotational speed by
It is transmitted to the shaft 34a of the transport roller 34 to drive the transport roller 34 to rotate forward and reverse.

Further, a third motor 50 is disposed on the outer surface of the left chassis 32b.
The reel shafts 36a, 3 fitted to the supply and take-up reels incorporated in the ink ribbon cassette 16 by combining a gear attached to the rotary shaft 0 and a plurality of other gears.
6b and a third drive for rotating the recording paper pull-out roller 31.
Of driving means 51 are provided.

That is, the recording paper pull-out roller 31, the pressing roller 33, the transport roller 34, and the platen roller 35 are rotatably supported by the left and right chassis 32a, 32b. The right chassis 32a has a ribbon cassette 16
The left chassis 32b has a second driving unit 49 for driving the transport roller 34 and a third driving unit for pulling out and transporting the ink ribbon and the recording paper. The second where 51 is arranged
Is formed.

Behind the cam portion 38e of the thermal head holding member 38, a first driving means 41 for driving the thermal head and the pressing roller is disposed. The first driving means 41 includes a gear group 41a for transmitting the rotational drive from the first motor 40 as a drive source at a reduced speed, and a gear group 41a.
a first cam drive section 41 for transmitting the rotational force transmitted at a reduced speed to the cam section 38e of the thermal head holding member 38
b, a slide member 4 described below for pressing the pressing roller 33 against the conveying roller 34 or moving the pressing roller 33 in the separating direction.
A second cam drive section 41c for swinging the 4a and 44b is formed coaxially and integrally. This first driving means 41
The rear chassis 42 is disposed, and both ends of the rear chassis 42 are bent, and the bent surfaces are provided with protrusions 42a, 42b for fixing and positioning when connecting and fixing to the connecting pieces 47a, 47b. The projection 42b is provided with a screw hole and the like (see FIG. 2).

The first drive source 40 and the first drive means 4
The rear chassis 42 to which the first chassis 1 is attached is fixed by screws or the like by inserting the protrusions 42a and 42b into insertion holes 47c and 47d provided in the connection pieces 47a and 47b. At this time, the rotary shaft 38c of the thermal head holding member 38 is inserted into the thermal head holding member bearing holes 47e and 47f provided in the connecting pieces 47a and 47b, and is rotatably fixed.

The second cam driving portion 41c of the first driving means 41 is disposed near a rotating shaft 38c of the thermal head holding member 38 which is supported by the connecting pieces 47a and 47b. A cam portion 4 provided on a rotating shaft 43 described later rotatably supported by the connecting pieces 47a and 47b.
3a.

That is, the connecting pieces 47a and 47b support the rotating shaft 38c of the thermal head holding member 38 in the thermal head holding member bearing holes 47e and 47f and the rotating shaft 43. I have. Then, the projections 42a and 42b of the rear chassis 42 to which the first driving source 40 and the first driving means 41 are fixed are inserted into the insertion holes 4.
7c, 47d and fixed with screws etc.
Is formed.

The first drive source 40 and the first drive means 4
1, a first frame unit in which a connecting member 47a, 47b on which a rotating shaft 38c and a rotating shaft 43 of the thermal head holding member 38 are pivotally supported is fixed, Platen roller 3
The second frame unit in which the left and right chassis 5 are fixed to the left and right chassis 34a and 34b includes screw holes 32d and 3 provided on the connection pieces 47a and 47b at the rear ends of the left and right chassis 34a and 34b.
2d ', 32c, 32c' and the connecting pieces 47a, 47
Using screws 47g, 47g ', 47h, 47h' provided on the left and right chassis 34a, 34b at the end of b, screws are used.

That is, the rear chassis 42 and the connecting piece 4
A first frame unit in which a predetermined drive mechanism is pre-assembled to the left and right chassis 34a, 34b;
By connecting and fixing the second frame units in which a predetermined drive mechanism is pre-assembled to each other, the efficiency of the assembling work can be improved.

When connecting the first and second frame units, the first driving cam 41b constituting the first driving means 41 is connected to the cam 38e of the thermal head holding member 38. Insertion holes 4 provided in the connection pieces 47a and 47b to connect them in such a manner that they are pressed appropriately.
The fixing holes 7e and 47f and the fixing holes formed by screws may have a shape and a size that allow a slight positional correction. Also, screw holes 32c, 32c ', provided in the left and right chassis 32a, 32b to correct the connection position of the first and second frame units.
Any of the screw holes 47g, 47g ', 47h, and 47h' provided in the connecting pieces 47a and 47b or the connecting pieces 47a and 47b may have a shape and a size capable of slightly correcting the position.

Behind the platen roller 35 pivotally supported by the left and right chassis 32a, 32b, a recording guide member 39 for guiding printed recording paper is provided.
2a, 32b and the connecting pieces 47a, 47b pinch and fix. Further, the recording paper guide member 39 has curved portions 39a and 39b which are curved upward in the figure behind the rear chassis 42 as shown in FIG. This curved portion 39
Since the printed recording paper is guided above the apparatus main body 11 by a and 39b, the depth dimension of the apparatus main body 11 can be reduced.

A second cam driving portion 41c of the first driving means 41 is provided on a rotating shaft 43 supported by the connecting pieces 47a and 47b in the vicinity of the rotating shaft 38c of the thermal head holding member 38. It comes into contact with the cam portion 43a provided. The connecting pieces 47a and 47b of the rotating shaft 43
In the vicinity where both ends are axially fixed, elongated fixing pieces 43b and 43c having one end fixed are attached and fixed.
The other ends of b and 43c are rotatably connected to one ends of slide members 44a and 44b. The slide member 44
a, 44b extend substantially parallel to the longitudinal direction of the recording paper guide member 39 and the left and right chassis 32a, 32b up to the vicinity of the transport roller 34, and at the other end, a U-shaped drive arm 45a, One end of 45b is rotatably connected. The central portions of the drive arms 45a and 45b are rotatably supported by the left and right chassis 32a and 32b, and the other end is rotatably supported by the pressing roller 33. The slide members 44a, 44b and the drive arm 45
Elastic bodies 46a and 46b (elastic bodies 46b are not shown in the drawing) are applied to the shaft fulcrums a and 45b in the direction in which the pressing roller 33 is pressed against the conveying roller 34. The slide plate 44b provided on the left chassis 32b side is bent in a U-shape to be formed in a substantially convex shape for the reason described later.

That is, the rear chassis 42 on which the first motor 40 and the first driving means 41 are disposed and the connecting pieces 47a and 47b on which the rotating shaft 38c and the rotating shaft 43 of the thermal head holding member 38 are fixed. A first frame unit, and various rollers 31, 33,
34, 35 are connected and fixed to the second frame units arranged on the left and right chassis 32a, 32b, and the fixing pieces 4 of the slide members 44a, 44b and the rotary shaft 43 are fixed.
By rotatably attaching 3b and 43c, there is no erroneous work of assembling the housing of the apparatus main body 11, and the assembling work efficiency is improved.

The rotating shaft 38c of the thermal head holding member 38 and the rotating shaft 43 driven by the second cam driving portion 41c of the first driving means 41 are connected to the connecting piece 4
7a, 47b, the thermal head holding member 3 is attached to the left and right chassis 32a, 32b.
If the rotation shaft 38c and the rotation shaft 43 are supported, the slide plates 44a and 44b can be assembled together via the rotation shaft 43 and the fixing pieces 43b and 43c in the assembly work of the second frame unit. The connecting pieces 47a and 47b are simply used for connecting and fixing the first frame unit and the second frame unit, thereby further improving the efficiency of the assembling work.

The right chassis 32a has an opening 17 into which the ink ribbon cassette 16 is inserted. When the user inserts or removes the ink ribbon cassette 16 into or from the ink ribbon insertion opening 17, the user's hand operates. Touches the periphery of the ink ribbon insertion opening 17. Corrosion such as rust is promoted by sweat from a hand or the like attached to the periphery of the ink ribbon insertion port 17 as compared with the other left chassis 32b, rear chassis 42, and the like. For this reason, the right chassis 32a is made of a member that is not easily rusted, or the right
Has been treated to prevent rust.

A first printed wiring board 52 is disposed below the left and right chassis 32a, 32b in the drawing. In the first printed wiring board 52, various signal processing circuits for processing image signal data obtained from the recording medium 19 or the PC interface plug 20 and controlling heat generation of the thermal head 37, and various kinds of driving means are provided. A drive control circuit and the like are mounted. Further, a recording medium insertion unit (not shown) for inserting the recording medium 19 and the PC
A PC interface connector to which the interface plug 20 is connected, a DC inlet connector to which the DC inlet plug 21 is connected, and the like are also mounted.

The recording medium insertion unit has a rectangular cubic shape, and comes into contact with a slide plate 44b arranged in parallel with the right chassis 32b. For this reason, by bending the slide plate 44b in a U-shape and arranging it so as to straddle the recording medium insertion unit,
The overlapping contact between the slide plate 44b and the recording medium insertion unit is avoided.

A second printed wiring board 53 is provided on the rear base end side of the rear chassis 42 so as to stand vertically from the first printed wiring board 52. On the second printed wiring board 53, a contact piece connected to the contact 23 of the battery 22 and a power supply circuit for supplying drive power for various signal processing circuits mounted on the first printed wiring board 52 are mounted. ing.

Next, the relationship between the apparatus main body 11 and the battery 22 will be described with reference to FIG. A first driving means 41 for driving the thermal head holding member 38 is provided on a rear base end side of a first frame unit disposed on a rear chassis 42 on a rear surface of the apparatus main body 11. A second printed wiring board 53 erected from 52 is arranged. The power supply circuit is mounted on the second printed wiring board 53, and a contact piece 54 is mounted on the second printed wiring board 53 at a position facing the contact 23 of the battery 22 mounted on the back of the apparatus main body 11. By the contact connection between the contact piece 23 and the contact piece 54, the second printed wiring board 5
3 is supplied with power.

Locking pieces 55a to 55d are provided on the back surface of the apparatus main body 11 at positions facing the fixing pieces 24a to 24d provided on the battery 22. Further, a release button 56 for releasing the attachment of the battery 22 is provided on one side of the surface of the apparatus main body 11 which is in contact with the battery 22, and a locking piece 56a which swings together by sliding the release button 56 is provided. It protrudes from the back of the apparatus body 11. The release button 56 and the locking piece 56a are urged by an elastic body (not shown) toward the outside of the rear surface of the apparatus main body 11. A lock hole 25 is formed in a surface of the battery 22 that is in contact with the device main body 11 at a position opposing the lock button 56a that swings with the release button 56.

That is, while the contact 23 of the battery 22 is in contact with the contact piece 54 of the apparatus main body 11, the battery 2
2 fixing pieces 24a to 24d
When locked to a to 55d, the locking pieces 56a of the release button 56 are fitted into the locking holes 25 of the battery 22, and the battery 22 is firmly attached to the apparatus main body 11.

On the other hand, when the release button 56 is slid in the direction in which the battery 22 is removed, the locking piece 56a swings together with the release button 56, and is released from the locking hole 25 of the battery 22, so that the battery 22 is removed. It can be removed from the apparatus main body 11.

There are various methods for mounting the battery 22 on the apparatus main body 11, and the method is not limited to the above-described method for mounting the battery, but it is detachable on the rear base end side of the first frame unit. By arranging the power supply unit, the size of the apparatus main body 11 can be reduced.

According to the embodiment as described above,
A recording paper attaching / detaching means for attaching / detaching the recording paper cassette 13 is arranged at the front of the apparatus main body 11, and a power attaching / detaching means for attaching / detaching the power supply section of the battery 22 is arranged at the back of the apparatus main body 11. The ink ribbon cassette insertion opening for attaching and detaching the ink ribbon cassette 16 is opened.
Further, inside the apparatus main body 11, a recording paper or ink ribbon traveling drive system and a thermal head holding member are configured to be small and thin, and the traveling drive system and the thermal head are separately assembled into at least two frame units. By connecting and fixing the individually assembled frame units into the apparatus main body 11, the efficiency of the assembling work of the printer apparatus main body 11 can be improved.

[0048]

As described above, the printer device of the present invention has a running system for the recording paper or ink ribbon disposed in the main body of the printer, and a thermal head holding member for driving the thermal head during printing and during non-printing. By dividing the drive system into different frame units and making it possible to assemble each frame unit, the efficiency of assembling the main body of the apparatus is greatly improved.

Further, by making the recording paper cassette and the power supply unit detachable from the main body of the printer, there is an effect that the main body of the printer can be reduced in size and thickness.

[Brief description of the drawings]

FIG. 1 is a developed perspective view showing an internal configuration of an embodiment of a printer device according to the present invention.

FIG. 2 is a perspective view illustrating a configuration of a chassis used in the printer device according to the invention.

FIG. 3 is a perspective view illustrating a relationship between a printer device according to the present invention and a power supply unit.

FIG. 4 is a perspective view showing an external configuration of a printer device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Printer apparatus 12 ... Input operation display means 13 ... Recording paper cassette 14 ... Recording paper insertion opening 15 ... Recording paper insertion opening 16 ... Ink ribbon cassette 17 ... Ink ribbon insertion opening (ink ribbon insertion opening) 18 ... Ink ribbon insertion opening DESCRIPTION OF SYMBOLS 19 ... Recording medium 20 ... PC interface plug 21 ... DC inlet plug 22 ... Battery 23 ... Contact 24 ... Fixing piece 25 ... Locking hole 31 ... Recording paper pull-out roller 32 ... Chassis (side wall part) 33 ... Pressing roller 34 ... Transport Roller 35 Platen roller 36 Reel shaft 37 Thermal head 38 Thermal head holding member 39 Recording paper guide member 40 First driving means 41 First motor 42 Rear chassis 43 Rotating shaft 44 Slide member 45: drive arm 46: elastic body 47: connecting piece 48: second mode 49 ... second driving means 50 ... third motor 51 ... third drive means 52 ... first printed wiring board 53 ... second printed wiring board 54 ... contact piece 55 ... locking piece 56 ... release button

Claims (4)

[Claims] 1. A thermal head holding member to which a thermal head is fixed, a first driving source, and first driving means for driving the thermal head holding member based on a driving force from the driving source. A first frame unit disposed; a platen roller for receiving the thermal head; a pair of paper feed rollers for sending recording paper in the direction of the platen roller; and a pair of side wall portions for supporting the paper feed roller at both ends. A second driving source, a second driving unit disposed on one of the side wall portions for driving the paper feed roller based on a driving force from the second driving source, and a second driving unit disposed on the other of the side wall portion. A second frame unit in which an insertion opening for inserting the ink ribbon cassette in one side wall direction is provided, and wherein the first and second frame units are connected and fixed. Printer apparatus according to symptoms. 2. The printer device according to claim 1, wherein the printer device is a portable printer device having a detachable recording paper cassette, wherein the second frame unit includes a paper feed roller opposite to the first frame unit. 2. The printer device according to claim 1, further comprising a detachable unit for attaching and detaching the cassette at a position facing the printer. 3. The printer device according to claim 1, wherein the other side wall portion into which the ribbon cassette is inserted is made of a member that is not easily rusted or a member that has been rust-proofed. 4. The thermal head holding member is provided rotatably with respect to the first frame unit.
2. The printer device according to claim 1, wherein a mounting member for mounting a detachable power supply is provided on the base end side.