JPH07292Y2 - Manual scanning printer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a manual scanning type printer.

[Conventional technology]

Recently, a handy type manual scanning type printing apparatus has been developed which manually scans and moves the apparatus body to print on an external recording paper.

This manual scanning type printing device has a thermal print head that prints on an external recording paper through an ink tape at the lower end of the handheld printing device main body, and moves the device main body in contact with the recording paper. A contact roller that rotates by means of an encoder that detects the amount of movement of the apparatus body by the rotation of the contact roller inside the apparatus body, the take-up shaft of the thermal transfer ink tape loaded in the apparatus body, and the contact sheet. A take-up shaft drive mechanism that rotationally drives the take-up shaft in conjunction with the rotation of the roller is provided. The print head and the paper contact roller provided at the lower end of the apparatus main body come into contact with the recording paper ( (The print head is in contact with the recording paper via the ink tape.) In this state, when the main body of the device is manually scanned and moved along the recording paper surface, the encoder is installed by the movement, that is, the rotation of the paper contact roller. Is output timing signal corresponding to the amount of movement of the body, the print head in synchronism with the timing signal is printed on the recording paper is driven.

That is, this manual scanning type printing device prints on an external recording paper by manually scanning and moving the printing device itself. This manual scanning type printing device has a small printing width, but uses a platen. Unlike the device, it is possible to print on a thick material such as a notebook that cannot be wrapped around a platen, and because it is small and lightweight, it is convenient to carry.

[Problems to be solved by the invention]

By the way, recently, as the above-mentioned manual scanning type printing apparatus, a key input section for inputting print information is provided on one surface, for example, the front surface of the apparatus main body, and the print information input from this key input section is printed on a recording paper. However, the manual scanning type printing device with the key input section on one surface of the main body of the device is designed to hold the main body of the device from above the keys arranged in a protruding state in the key input section. Therefore, there is a problem in that it is difficult to hold the apparatus main body so as not to wobble and perform stable scanning movement during printing. This is because various keys arranged in the key input section are elastically deformed by the pressing force, so that the keys are recessed or protruded depending on the strength of the gripping force of the apparatus main body.

The present invention was made in consideration of the above situation, and the purpose thereof is to provide a key input portion on one surface of the device body, and to hold the device body so as not to wobble. An object of the present invention is to provide a manual scanning type printing device that can perform stable and stable scanning movement.

[Means for solving problems]

This invention is characterized in that a finger contact plate for gripping the device body is detachably or slidably attached to the key input part forming surface of the device body across the key input part.

[Action]

That is, the manual scanning type printing apparatus of the present invention is designed such that the apparatus main body is grasped from above the finger contact plate attached to the apparatus main body so as to straddle over the key input section thereof. Since the main body of the device can be pressed firmly from the side where the key input part is formed, the key input part is provided on one surface of the main body of the device, and the main body of the device is grasped so that it does not wobble and moves stably for scanning. be able to.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

The manual scanning type printer of this embodiment is shown in FIGS.
The appearance is as shown in the figure.
The figure shows the non-printing state. This manual scanning type printing apparatus has a function as a word processor (hereinafter abbreviated as word processor), and in FIG. 1 and FIG. 2, reference numeral 1 is an apparatus main body having a hand-held size. A display unit 2 and a key input unit 3 are provided on the front surface of the. The key input unit 3 has a large number of character input keys 3a, 3
a is arranged vertically and horizontally, and on one side there are arranged various control keys 3b, 3b such as a conversion character designation key, conversion execution key, print information selection key, print repeat key, etc. The Kanji character selection keys 3c, 3c are arranged.

The configuration of this manual scanning type printer will be described. This printer is provided with a front block A and a rear block B which constitute the apparatus main body 1, and a seventh block provided in the apparatus main body 1.
It is composed of a center block C shown in the figure.

First, the front block A will be described. The front block A is, as shown in FIG.
The display section 2 and the key input section 3 are provided in the front case 1a that constitutes the front surface of the display case 2. The display section 2 forms a display window 4 on the front surface of the front case 1a and faces the display window 4. Then, the liquid crystal display panel 5 is arranged in the front case 1a. Also, in FIG.
Is a main circuit board provided in the front case 1a. The main circuit board 6 constitutes a main circuit of the printing apparatus, and the liquid crystal display panel 5 is connected to the main circuit board 6 by a heat seal connector 7. 8 is a fixed contact sheet arranged on the main circuit board 6;
A movable contact sheet 9 faces the fixed contact sheet 8, and the fixed contact sheet 8 and the movable contact sheet 9 are laminated and adhered via a spacer sheet 10. Fixed contact sheet 8
Has a large number of fixed key contacts (not shown) arranged vertically and horizontally on the surface facing the movable contact sheet 9, and the fixed contact sheet 8 is a main part of the flexible connector portion 8a formed to extend to one side thereof. It is connected to the circuit board 6.
Further, the movable contact sheet 9 is formed by arranging a large number of movable key contacts (not shown) facing each fixed key contact on the surface of the movable contact sheet vertically and horizontally on the surface facing the fixed contact sheet 8. The contact sheet 9 is also connected to the main circuit board 6 at the flexible connector portion 9a extending and formed on one side thereof. The flexible connector portion 9a is connected to the main circuit board 6 by bypassing the outside of the spacer 10 and the fixed contact sheet 8. On the other hand, the spacer sheet 10 has openings 11 and 11 at portions corresponding to the respective key contacts of the fixed contact sheet 8 and the movable contact sheet 9.
(See FIG. 3), the movable key contact on the surface of the movable contact sheet 9 comes into contact with the fixed key contact on the surface of the fixed contact sheet 8 in the opening 11 by the pressing of the movable contact sheet 9. ing. Further, 12 is a rubber sheet superposed on the movable contact sheet 9. This rubber sheet 12
Are formed by bulging portions of the movable contact sheet 9 corresponding to the movable key contacts to the front side to form the key button portions 13, 13 (see FIG. 3) of the keys 3a, 3b, 3c. Then, on the inner surface of the top of each of the key button portions 13, 13, there is formed a protrusion for pressing the key contact forming portion of the movable contact sheet 9. The key button portions 13 and 13 project from the key openings 14 and 14 vertically and horizontally arranged on the surface of the front case 1a to the front surface of the front case. The movable contact sheet 9 is thereby pressed. The main circuit board 6 is provided with post parts 15, 15 provided in the front case 1a as shown in FIG.
The fixed contact sheet 8 and the movable contact sheet 9 adhered via a spacer sheet 10 and the rubber sheet 12 superposed on the movable contact sheet 9 are attached to the inner surface of the front case 1a and the main circuit board 6 by screws. The liquid crystal display panel 5 is also sandwiched between the inner surface of the front case 1a and the main circuit board 6. Also front case
A memory card insertion slot 16 and a charging hole 17 are opened on the upper surface of 1a, and a slide type mode changeover switch 18 also serving as a power switch is provided on one side surface of the front case 1a, and a push switch on the other side surface. Is provided with a print start button 19.

On the other hand, in the rear block B, as shown in FIG. 6, the secondary battery 20 for power supply and the power supply circuit board 21 are housed in the rear case 1b which constitutes the rear surface of the apparatus main body 1. The size is such that the lower end side is shorter than the front case 1a, the power supply circuit board 21 is fixed to the inner surface of the rear case by adhesion or screwing, and the secondary battery 20 is arranged side by side with the power supply circuit board 21 in the rear case 1b. It is located on the side. As shown in FIG. 3, the secondary battery 20 has a pair of battery connection springs 22a, 22a provided at both ends in the rear case 1b.
Electrodes on both ends of the battery are sandwiched by b (one is a leaf spring and the other is a coil spring in the figure) and fixed in the rear case 1b. The battery connection springs 22a and 22b are connected to the power supply circuit board 21 by lead wires 23a and 23b. Connected with. In addition, the power supply circuit board 21
A charging adapter 24 for charging the secondary battery 20 is attached to the upper end side of the above so as to face the charging hole 16 provided on the upper surface of the front case 1a. Reference numeral 25 is a piezoelectric buzzer 25 that emits an alarm sound when the moving speed of the printing device that is manually scanned and moved on the recording paper is too fast. The piezoelectric buzzer 25 is connected to the power supply circuit board 21.

Next, the center block C will be described with reference to FIG. The center block C is the front block A described above.
A device body 1 configured by combining a rear block B
The center block C is housed inside and has the following structure. That is, in FIG. 7, 26
Is a chassis made of resin molded product.
A memory card accommodation portion 27 for accommodating a memory card 90 (see FIG. 1) to be inserted from the memory card insertion opening 16 provided on the upper surface of the front case 1a is formed on one surface from the upper edge to the central portion. There is. Incidentally, 27a is a card guide rail portion formed on both sides of the memory card accommodating portion 27. Further, in FIG. 7, reference numeral 28 denotes a chassis 26 which is placed on the chassis 26 so as to cover the memory card storage 27.
It is an auxiliary circuit board that is adhered or screwed to, and a memory card connector 29 that is inserted into the inner depth of the memory card housing portion 27 is attached to the auxiliary circuit board 28.
This memory card connector 29 has a resin base, and a large number of contact pins 29a, 29 fitted into a large number of contact holes (not shown) formed in the end surface of the memory card 90.
The other ends of the contact pins 29a, 29a are inserted into the holes 30 provided in the auxiliary circuit board 28 and soldered to the auxiliary circuit board 28 as shown in FIG. ing. Further, a resin sheet 31 having a small friction coefficient is adhered to a portion of the auxiliary circuit board 28 that faces the inside of the memory card storage portion 27, and the memory card 90 has a memory card storage portion.
The rail portion 27a of 27 and the resin sheet 31 guide the both sides of the card and are inserted into the memory card housing portion 27 to be connected to the memory card connector 29. Further, in FIG. 7, reference numeral 32 is a printing unit attached to the lower end side of the chassis 26, and the printing unit 32 has the following configuration.

8 and 9 show the printing unit 32, in which 33 is a base made of a metal plate, and a tape cassette support base 34 made of a resin molded product is provided on the surface of the base 33. It is fixed with screws. Reference numerals 35 and 36 denote a main paper contact roller and an auxiliary paper contact roller which come into contact with the recording paper surface and are rotated by the scanning movement of the apparatus main body 1. These both paper contact rollers 35, 36
Is a roller mounting part 37,3 formed on both sides of the lower end of the base 33.
8 is rotatably supported. Reference numeral 39 is an encoder for detecting the amount of movement of the apparatus main body 1 by the rotation of the main paper-contact roller 35. The encoder 39 is composed of a rotating disc 41 rotatably supported by a support shaft 40 provided vertically on a base 33, and a rotation amount detector 42 for detecting the rotation amount of the rotating disc 41. The rotary disc 41 is provided with a large number of slits 41a, 41 at regular intervals on the outer periphery of the rotary disc 41. Further, the rotation amount detector 42 is a U-shaped one that covers the outer peripheral portion of the rotating disc 41 from both sides thereof, and the rotation amount detector 42 includes a light emitting element such as a light emitting diode and a light receiving element such as a phototransistor. (Neither is shown) are provided so as to face each other with the rotating disc 41 interposed therebetween. This rotation amount detector 42 is fixed to the base 33 and its lead terminal
42a is connected to the auxiliary circuit board 28. Above rotating disc 4
Reference numeral 1 denotes a member that is rotated by the rotation of the main paper-contact roller 35 via a first intermediate gear 43 and a second intermediate gear 44. The first intermediate gear 43 is a drive gear 45 provided at one end of the main paper-contact roller 35. The second intermediate 44 is engaged with the passive gear 46 fixed to the rotating disc 41.
And the first intermediate gear 43. That is, the encoder 39 detects the rotation amount of the rotating disc 41 rotated by the rotation of the main paper-contact roller 35, that is, the scanning movement amount of the apparatus main body 1 by the rotation amount detector 42. 42 is the slit 41 of the rotating disc 41 where the light from the light emitting element
A pulse signal is output when light is received by the light receiving element through a. Further, in FIGS. 8 and 9, 47 is an ink which is supported by the tape cassette support 34 and is loaded in the apparatus main body 1 to rotate the take-up spool 87 of the ink tape cassette 84 shown in FIG. It is a tape winding shaft. The ink tape take-up shaft 47 has a hollow rotary shaft 49 that is rotatably fitted to a support shaft 48 provided vertically on a base 33 and a spool engaging piece 50 fitted and fixed to the upper end of the hollow rotary shaft 49.
The winding shaft drive gear 51 is rotatably fitted to the 49,
The winding shaft drive gear 51 is meshed with the third intermediate gear 53 meshed with the second intermediate gear 44. Further rotating shaft 49
A friction plate 52, which is sandwiched between a circular flange 49a provided at the base end thereof and the winding shaft drive gear 51, is rotatably fitted to the winding shaft drive gear 51 and the spool. A rotating plate 54 and a washer 55 are rotatably fitted between the engaging piece 50 and the washer 55 and the rotating plate 54.
The winding shaft drive gear 51, the friction plate 52, and the flange portion 49a of the rotary shaft 49 are pressed against each other by the spring force of a coil spring 56 interposed between the spool engagement piece 50 and the washer 55. The ink tape take-up shaft 47 is interlocked with the rotation of the main paper-contact roller 35, and the first to third intermediate gears 43, 44, 53.
And the take-up shaft drive gear 51 is rotationally driven, and the take-up shaft drive gear 51 is rotated by a friction plate 52.
It is transmitted to the flange portion 49a of the rotating shaft 49
Rotates with the spool engaging piece 50. An arm portion extending outward is formed on the rotating plate 54. When the apparatus main body 1 is moved in the direction opposite to the normal print scanning direction, the arm portion extends outward. Reverse rotation prevention gear 57 to prevent reverse rotation of the ink tape take-up shaft 47
Is pivotally supported. The reverse rotation prevention gear 57 is always meshed with the winding shaft drive gear 51, and is in contact with the winding shaft drive gear 51 to rotate in the rotation direction of the winding shaft drive gear 51.
By the rotation of 54, the winding shaft drive gear 51 is displaced in the circumferential direction. The reverse rotation prevention operation of the ink tape take-up shaft 47 by the reverse rotation prevention gear 57 will be described. When the apparatus main body 1 is moved in the normal print scanning direction (the direction of the chain line arrow in FIG. 8), it contacts the recording paper. Since the main paper-contacting roller 35 rotating in the direction of the arrow rotates the intermediate gears 43, 44, 53 and the take-up shaft drive gear 51 in the direction of the arrow, the ink tape take-up shaft 47 becomes the ink tape. It is rotated in the winding direction.
In this case, the rotation plate 54 is rotated in the rotation direction of the winding shaft drive carrier 51, received by the stopper portion 58 formed on the side surface of the tape cassette support 34, and held at this position.
The winding shaft drive gear 51 rotates due to slippage with the rotating plate 54. Also, the rotating plate 54 and the washer 55
Since the contact surface with is coated with grease, the ink tape take-up shaft 47 also slips between the rotating plate 54 and the washer 56 to rotate with the take-up shaft drive gear 51. On the other hand, when the apparatus main body 1 is erroneously moved in the direction opposite to the normal print scanning direction during printing, the main paper-contact roller 35 in contact with the recording paper rotates in the direction opposite to the arrow direction and each intermediate Since the gears 43, 44, 53 and the winding shaft drive gear 51 rotate in the directions opposite to the arrow directions, respectively, the ink tape winding shaft 47 is rotated in the direction opposite to the ink tape winding direction.
In this case, the rotating plate 54 is rotated in the direction of the broken line arrow by the reverse rotation of the winding shaft drive gear 51, and the winding shaft drive gear 51 is rotated.
Since the reverse rotation preventing gear 57 meshing with the third meshing gear 53 also meshes with the third intermediate gear 53, the rotation of the gear system is blocked, the reverse rotation of the ink tape winding shaft 47 is prevented, and at the same time, the rotation disk 41 of the encoder 39 is rotated. The rotation is also blocked. At this time, the main paper-contact roller 35 slides on the recording paper surface without rotating.

Further, in FIGS. 8 and 9, 59 is a thermal print head, 60 is a print head holder, and the print head holder 60 is fixed to the lower end side of the base 33 with screws. This print head holder 60 has a print head protruding opening 61 on the lower surface.
And a print head mount 62 is provided inside thereof. This print head mount 62 is
The print head holder 62 is vertically movably supported by two guide rods 63 and 63 which are vertically fixed in the print head holder 60. It is pressed downward by pressing springs 64, 64 which are coil springs and are interposed between 62 and the upper end of the print head holder 60. A bolt through hole 65 is horizontally formed in the center of the print head mount 62.
The print head 59 is housed in the print head holder 60 with its tip (lower end) projecting from the print head projecting opening 61 to below the print head holder 60. A head support bolt whose rear surface is in contact with the print head mount 62 and which is screwed and fixed to the central portion of the rear surface of the print head 59 through the bolt through hole 65.
It is attached to the print head mount 62 via 66. In FIG. 8, 67 is a bolt insertion hole opened on the side surface of the print head holder 60. Above head support bolt
The print head 59 is rotatably supported by the print head mount 62, so that the print head 59 can rotate about the head support bolt 66.

The printing unit 32 is constructed such that the base 33 of the printing unit 32 is superposed on the lower surface of the chassis 26 and fixed by screws to fix the chassis 26.
Installed on. Further, in FIG. 9, 68 is a print driver circuit board made of a flexible board which constitutes a print driver circuit for driving the print head 59, and this circuit board 68 is superposed on the back surface of the chassis 26 as shown in FIG. Has been. 69 is an LS attached to the circuit board 68
It is an I-chip. Connector portions 68a and 68b are formed to extend on both ends of the print driver circuit board 68, and the connector portion 68a on the lower end side includes the chassis 26 and the base 3.
It is pulled out to the surface side of the base 33 through the slits 70 and 71 provided in 3, and is further inserted into the print head holder 60 from the slit 72 provided on the upper surface of the print head holder 60 and connected to the print head 59. There is. Also, the upper connector 68b
Is drawn out to the front surface side of the chassis 26 from a connector drawing opening 73 provided in the chassis 26, and is inserted and connected to a connector 74 provided in the auxiliary circuit board 28.

That is, the center block C has a main contact roller 35, an auxiliary contact roller 36, an encoder 39, an ink tape winding shaft 47, a gear mechanism for driving them, and a print head 59 mounted on a common base 33. The unit 32 is supported by a chassis 26, and an auxiliary circuit board 28 and a print driver circuit board 68 are attached to the chassis 26. The center block C is positioned and housed in the print head front case 1a so that the lower side of the paper contact rollers 35, 36 of the printing unit 32 slightly protrudes from the lower edge of the front case 1a. A chassis 26 is fixed to the front block A with screws at the ends of the posts 15 that support the 6.

The apparatus main body 1 is assembled by combining the front block A with the center block C attached and the rear block B and joining the front case 1a and the rear case 1b of both blocks A and B together. B power supply circuit board 21 and center block C auxiliary circuit board
28 are flexible connectors 75 and 76 (Fig.
7)) to the main circuit board 6 of the front unit A.

FIG. 11 shows the circuit of the printing device. The display section 2 and the key input section 3 of the front block A are connected to the main circuit 100 formed on the main circuit board 6, and the secondary battery of the rear block B is connected. Reference numeral 20 is connected to the power supply circuit 101 formed on the power supply circuit board 21, and is formed on the print driver circuit 103 formed on the print driver circuit board 68 of the print unit 32 of the center block C and the memory card connector 29 auxiliary circuit board. Connected to the auxiliary circuit 102, the power circuit 1
01 and the auxiliary circuit 102 are connected to the main circuit 100.

Further, the printing unit 32 of the center block C is exposed on the lower end side of the rear case 1b as shown in FIG. 4, and the printing unit 32 is covered with a removable lid 1c. In this lid 1c, elastic hooking pawls 77 formed at a plurality of upper edge portions thereof are inserted into holes 78 provided in the lower surface of the rear case 1b, and hooking portions 79 (FIG. 3 in FIG. 3) on the inner surface of the rear case 1b. The lid 1c is attached to the apparatus main body 1 so that the lower edge of the lid is flush with the lower edge of the front case 1a, and the lid 1c is removed by pulling it downward. To be done. A transparent window for confirming the remaining amount of the tape is formed on the lid 1c so as to correspond to the supply side spool 86 of the ink tape cassette 84.

Further, in FIG. 4, reference numeral 80 denotes a protective cover for protecting the print head 59 and the paper-contact rollers 35, 36 exposed on the lower end surface of the apparatus main body 1 when the printing apparatus is not printing. The cover 80 is detachably attached to the apparatus main body 1 by hooking elastic hooking pieces 81 having claws formed at both ends thereof on hooking portions 82 provided on both side surfaces of the lower end of the front case 1a. To be The print head 59 is
When the protective cover 80 is attached to the apparatus main body 1, it is pushed by the protective cover 80 and pushed into the inside of the apparatus main body 1 against the spring force of the pressing spring 64. When the protective cover 80 is removed, the force of the spring of the push spring 64 causes the lower surface of the apparatus body 1 to project. The protective cover 80 is attached to the front surface of the apparatus main body 1 during printing as shown in FIG. 1 and is also used as a finger contact plate for gripping the apparatus main body 1. This protective cover also serves as the finger contact plate.
The hook 80 has hooks at the ends of its hooking pieces 81 hooked in hooking grooves 83 formed on both sides of the front case 1a along the front surface of the case, thereby straddling the key input section 3 and the device main body. 1 is detachably attached in a state of being floated from the front surface of 1, that is, in a state of not touching each key of the key input unit 3. The locking groove 83 is provided from near the lower edge to near the upper edge of the key input section 3 so that the mounting position of the finger cover / protective cover 80 can be arbitrarily selected.

Next, an ink tape cassette used in the printing device
Describing 84, 85 in FIG. 10 is a cassette case made of transparent resin. The cassette case 85 has a shape as shown in the figure, and one side of the cassette case 85 is the main body 1 of the apparatus.
A cutout portion 85a into which the print head holder 60 is inserted is formed, and a tape pull-out slit 85b and a tape pull-in slit 85c are provided. This cassette case 85
A supply side spool 86 and a winding side spool 87 are provided inside, and the thermal transfer ink tape 88 wound around the supply side spool 86 is pulled out from the tape pull-out slit 85b to the cutout portion 85a. Across the open end of the tape, the tape is drawn into the cassette case 85 from the tape drawing slit 85c, and is wound around the winding side spool 87. Further, in FIG. 10, reference numeral 89 denotes a removable filling member which is fitted into the notch portion 85a of the cassette case 85. This filling material 89
Is made of styrofoam resin, for example, and the cutout
The ink tape support surface 89a is formed in an arcuate shape and has a size that fits tightly into the inside of the 85a and projects outward from the open end of the cutout portion 85a. This padding member 89 is
The ink tape cassette 84 supports the exposed portion of the ink tape 88 that crosses the open end of the cutout portion 85a in a state of being bulged outward.
The product is box-packaged and shipped while being fitted in the notch 85a of the 85.

The ink tape cassette 84 is to be loaded in the printing apparatus by removing the filling member 89 as shown in FIG. 4, and the ink tape cassette 84 is protected from the apparatus main body 1 by the protective cover 80 and the lid 1c. And the tape is mounted on the tape cassette support base 34 of the printing unit 32. As shown in FIG. 9, two tape secut hooking pieces 34a, 34a having hooking claws at the tip end thereof are integrally provided on the side edge of the tape cassette support base 34, The ink tape cassette 84 is brought into contact with the tape cassette support base 34 while elastically deforming the hooking pieces 34a, 34a to the outside, and is locked and fixed by the hooking pieces 34a, 34a as shown in FIG. The intermediate gears 43, 44, 53 of the printing unit 32, the rotary disc 41 of the encoder 39, the rotary plate 54 of the ink tape take-up shaft 47, and the take-up shaft drive gear 51 are all the tape cassette support base. It is provided at a position lower than the tape cassette supporting surface of 34, and therefore the ink tape cassette 84 is loaded on the tape cassette supporting base 34 without hitting these gears or the like. In addition, the spool engagement piece of the ink tape take-up shaft 47 of the printing unit 32
50 is fitted into and engaged with the take-up spool 78 of the ink tape cassette 84, and the print head holder 60 is the ink tape cassette.
It goes into the notch 85a of 84. In this case, the print head 59 supported by the print head holder 60 includes the press springs 64, 6
The head of the print head is pressed by the spring force of 4 and the print head holder 6
Ink tape cassette 8 because it projects below 0
If the exposed portion of the ink tape 88 that crosses the open end of the cutout portion 85a of 4 is a straight line,
The exposed portion of the ink tape 88 hits the print head 59, but as described above, the filling portion 89 is fitted into the cutout portion 85a of the ink tape cassette 84 to expose the exposed portion of the ink tape 88 from the tip of the print head 59. When the ink tape 88 is swollen outward, the ink tape 88 keeps the swollen state even when the filling member 89 is removed. Therefore, when the ink tape cassette 84 is loaded, the exposed portion of the ink tape 88 is exposed to the print head 59. Since it does not hit, the ink tape 88 does not hit the print head 59 and is not bent or twisted.

Next, a method of using the above manual scanning type printer will be described.
This manual scanning printer converts character information input in kana or roman letters into character information such as kanji, hiragana, katakana, numbers, and symbols, similar to a general Japanese word processor, and converts this character information into the first character information. 2 As shown in FIG.
The character information written in this memory section is printed on an external recording paper while the character information is input by switching the mode switching stitch 18 to the W position. This is done with the printer in word processor mode. On the other hand, when printing the character information written in the memory section, first, the mode selector switch 18 is switched to the P position to set the printer in the print mode, and at the same time, the memory card insertion opening 16 causes the printer main body 1 to be inserted. Insert the memory card 90, remove the protective cover 80 from the lower end of the device body 1, and remove the paper contact rollers 35, 3
6 and the print head 59 are exposed, and the protective cover 80 is attached to the front surface of the apparatus main body 1 as shown in FIG. The memory card 90 is a ROM card that specifies a print font, and a plurality of types of this memory card 90 are prepared. Next, the finger cover is attached to the front surface of the apparatus main body 1 as well as the protective cover 80 that also serves as a finger pad and the back surface of the apparatus main body 1 to hold the apparatus main body 1 as shown in FIG.
Paper contact rollers 35 and 36 and print head 59 exposed below
Touch the recording paper 91 side. In this case, the print head 59 rises to the recording paper contact level of the paper contact rollers 35 and 36 while compressing the pressing springs 64 and 64 by contact with the recording paper 91, and the repulsive force of the pressing springs 64 and 64 causes the recording paper 91 to move. The surface is pressed into contact. After this, press the print start button 19 and then
May be manually moved in the horizontal direction (the direction indicated by the arrow in FIG. 2). When the apparatus body 1 is moved in this manner, the encoder 39 is rotated in accordance with the rotation of the main paper-contact roller 35. A pulse signal corresponding to the amount of movement of the apparatus main body 1 is output from the memory unit, and the print information is sequentially read from the memory unit according to the timing pulse, and the print information is output to the print head 59
Is printed on the recording paper 91 via the ink tape 88 by the ink tape 88, and the take-up spool 87 of the ink tape cassette 84 is rotated by the ink tape take-up shaft 47 that rotates in conjunction with the rotation of the main paper-contact roller. Take up the tape 88. It should be noted that FIG. 1 shows a state in which a memory card 90 for printing a brush character is inserted into the apparatus main body 1 to print a brush character.

When performing this printing, in the above printing device, the device main body 1
A main contact roller 35 provided on one side (front side with respect to the scanning movement direction) and an auxiliary contact roller 36 provided on the other side (rear side with respect to the movement direction) of the apparatus main body 1 The main body 1 is supported on the recording paper 91, and the paper contact rollers 35, 3
Since the print head 59 is provided between 6 and the print head 59 is pressed against the recording paper 91 by the spring force of the pressing springs 64, 64, the print head 59 is always kept at a constant contact pressure with the ink tape 88. It is possible to print by contacting the surface of the recording paper 91 via the print head 59, and since the print head 59 is supported on the print head mounting base 62 of the print head holder 60 so as to be rotatable in a rolling manner, the scanning movement is performed. Even if the apparatus body 1 is inclined to the front side or the back side, the print head 59 is
Rolling on the opposite side by the angle of inclination always makes a flat contact with the surface of the recording paper 91, so that printed characters are not blurred.

In the above embodiment, since the encoder 39 and the ink tape take-up shaft 47 are driven by using only the rotation of the main paper-contact roller 35, the vicinity of the end of a thick recording paper such as a notebook When the main paper-contact roller 35 is disengaged from the recording paper, the encoder 39 and the ink tape take-up shaft 47 cannot be driven according to the movement amount of the apparatus main body 1 (the main paper-contact roller 35 is on the recording paper). The main paper-contact roller 35 floats up, the rotation of the main paper-contact roller 35 stops and the rotation of the encoder 39 and the ink tape take-up shaft 47 fluctuates. Even if 35 is removed from the recording paper, the auxiliary paper-contact roller 36 is still in contact with the recording paper, so if the auxiliary paper-contact roller 36 can also drive the encoder 39 and the ink tape winding shaft 47, Roller 35 records Encoder 39 and an ink tape winding shaft 47 even when deviated from the above can be driven according to the amount of movement of the apparatus main body 1. In this way, the encoder 39 and the ink tape winding shaft 47 are connected to the auxiliary paper contact roller.
When driven by the 36 as well, for example, as shown by the chain line in FIG. 9, the main paper contact roller 35 and the auxiliary paper contact roller 35
By fixing the pulleys 35a and 36b to the roller shafts of 36 and winding the drive belt 92 around these pulleys 35a and 36a, the main paper-contact roller 35 and the auxiliary paper-contact roller 36 are rotated in synchronization. If you do it like this,
Even if the main paper-contact roller 35 is disengaged from the recording paper, the rotation of the auxiliary paper-contact roller 36 in contact with the recording paper causes the main paper-contact roller 35 to rotate.
Is rotated in the same way as when it is in contact with the recording paper, the encoder 39 and ink tape take-up shaft are
The device 47 can be driven according to the amount of movement of the device body 1.

Then, when the apparatus body 1 is gripped and moved by scanning,
When the apparatus main body 1 is gripped by directly putting a finger on the front surface of the apparatus main body 1, the device main body 1 is arranged from the character input keys 3a, 3a and the control keys 3c, 3c arranged on the front of the apparatus main body. In order to grip 1, the key button portions 13, 13 that are bulged on the rubber sheet 12 may be recessed or projected due to the strength of the gripping force, causing the device body 1 to wobble. In the above-mentioned printing apparatus, the finger-cover / protective cover 80 removed from the lower end of the main body 1 is attached to the front of the main body 1 so as to straddle the key input section 3, and the finger-cover / protective cover 80 is mounted on the main body. Since the device 1 is gripped, it is possible to firmly press the device body 1 from the front surface side thereof, that is, the key input portion forming surface side. Therefore, according to the above-mentioned manual scanning type printer, even though the key input unit 3 is provided on one surface (front surface) of the apparatus main body 1, the apparatus main body 1 can be grasped so as not to wobble and stably scanned and moved. it can.

In the embodiment described above, the finger contact plate mounted on the front surface of the apparatus body 1 so as to straddle the key input section 3 is also used as the protective cover 80 which is attached to the lower end of the apparatus body 1 and protects the print head 59 and the like. However, this finger contact plate may be a dedicated one, and when the finger contact plate is dedicated, the finger contact plate is slidably attached to the apparatus main body 1 and The finger contact plate may be slid and retracted to a position (a position where it does not interfere with the key input operation) out of the key input unit 3 during the input scanning from 3.

[Effect of device]

In the manual scanning type printer of the present invention, a finger contact plate for gripping the main body of the apparatus is detachably or slidably attached across the key input section on the side where the key input section is formed. Even though the key input unit is provided on one surface of the apparatus main body, the apparatus main body can be grasped in a wobbling manner and stably moved for scanning.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIGS. 1 and 2 are external views of a printing device in a printing state and a non-printing state, FIG. 3 is a vertical side view of the printing device, and FIG. FIG. 5 is a perspective view seen from the back side of the printer with the lid covering the printing unit removed, and FIG. 5 is an exploded perspective view of the front block.
FIG. 6 is an exploded perspective view of the rear block, FIG. 7 is an exploded perspective view of the center block, FIGS. 8 and 9 are front and exploded perspective views of a printing unit attached to the center block, and FIG. 10 is printing. FIG. 11 is a perspective view of an ink tape cassette used in the apparatus, and FIG. 11 is a block diagram showing a circuit configuration of the printing apparatus. 1 ... Device body, 3 ... Key input part, 80 ... Protective cover that also serves as a finger pad.

Claims (1)

[Scope of utility model registration request] 1. A recording head is provided at the lower end of an apparatus main body having a key input section on one surface and is gripped by hand, and the recording is performed by manually scanning and moving an external recording paper while holding the apparatus main body. A manual scanning type printing device for printing on paper, wherein a finger contact plate for holding the device body is detachably or slidably attached across the key input part on the side of the key input part forming surface of the device body. A manual scanning type printing device characterized in that