JP2775730B2 - Printing device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a printing device. [Related Art] Recently, a lower surface of a device main body which can be gripped by hand is placed in the main body.
Scanning movement of the device itself, with a print head protruding from
Handy type compact printing device that prints on recording paper
Is being developed. This small printing device can be grasped in a state where the printing device is set up by hand.
The device itself can be scanned and moved to
Prints on recording paper.Place the printer on an external recording paper.
The print head at its lower end into contact with the recording paper.
When the printer is scanned and moved along the recording paper in the
As the scanning device moves, the character
Read out the print information stored in the
The print head is driven according to the information to print on the recording paper.
The small printing device prints on external recording paper.
The built-in recording paper (roll
There is also a type that prints on paper).
Pull out the built-in recording paper below the device and turn it under the print head.
Place the printing device on the recording paper support surface such as a desk
The scanning device along the recording paper support surface.
With the scanning movement of this printing device,
Print on the recording paper on the internal recording paper pulled out from the body
It has become. That is, the small printing device scans and moves the device itself.
The external recording paper under the device or from inside the device.
This small mark is printed on the built-in recording paper
The printing device has a limited printing width, but uses a platen.
Is smaller and lighter than normal printing devices
In addition, it has the advantage of being portable. By the way, as the above-mentioned small printing device, there is a conventional thermal printing.
What prints on special recording paper such as recording paper is known
However, this small-sized printing device is more than dedicated recording paper such as thermal recording paper.
There is also a problem that printing cannot be performed on outside recording paper.
ing. On the other hand, a printing device with a platen, such as a word processor
For printing devices such as sessa, ink tape (generally heat transfer)
There is a type that performs printing using a printing ink tape). This
Printer moves in its axial direction along the platen
With a print head and ink tape take-up shaft on a moving table
Then, the ink tape cassette is wound on the moving table.
Attach / detach by engaging the side spool with the ink tape winding shaft
Loaded as possible. FIG. 13 has the above platen
Commercially available ink tape cassette used in printing equipment
This ink tape cassette is
Formed with a notch 92 into which the print head H of the printing device enters.
A supply spool 93 is marked in a box-shaped cassette case 91.
When the ink tape of the character device is wound (not shown),
A take-up spool 94 that is driven to rotate in the take-up direction is provided.
And is wound around the supply spool 93.
The ink tape 95 is wound on the winding side through the open end of the cutout 92.
Wound around spool 94. With the above platen
The printing device prints the print head H on the recording paper wound around the platen.
Is brought into contact via the ink tape 95, and the moving table is moved.
The print head H together with the ink tape cassette.
Scanning movement in the axial direction of Latin (X direction in Fig. 13)
Is printed on the recording paper, and is wrapped around the platen.
The recording paper rotates the platen each time one line is printed.
1 pin in the platen circumferential direction (Y direction in FIG. 13).
Are sent one by one. That is, this printing device
This printer prints on recording paper using a tape.
Can print on any kind of recording paper
Applied the printing method of this printing device to the small printing device described above.
If applicable, print the above small printing device on any recording paper
It can be possible. However, the above-mentioned small printing device records on the platen.
Instead of sending paper, scan the device itself to print on the recording paper.
The small printing device is
The printing method of the printing device equipped with a ten
Then, every time printing of one line is completed, the device
Scanning of the device
Movement is troublesome, and the print head and ink tape
Set the set in the width direction of the main unit (perpendicular to the scanning direction of the
In the direction of movement).
It always gets complicated. Therefore, the above small printer uses ink tape.
When printing with
As a wide print head as shown in
The head H is replaced with the printing dots
(The heating element for a thermal print head)
If it is provided perpendicular to the scanning movement direction (X direction) of the device,
In addition, the ink tape 59 is also wide according to the length of the print head H.
While moving the device in the scanning direction in the X direction as a width tape,
To print one line of print characters at a time.
In this way, the print head and the ink
Since there is no need to move the tape cassette sideways,
Construction can be simplified. Thus, when the ink tape 59 is a wide tape,
Conventionally, a commercially available ink tape cassette shown in Fig. 13 was used.
Tape cassette as shown in Fig. 14
The use of is considered. [Problems to be Solved by the Invention] By the way, using a wide ink tape as described above
Printer that prints one line of print characters at a time
This is set in the length direction of the print head H (the arrangement of the printing dots).
Direction by scanning and moving in the direction perpendicular to
The ink tape cassette on its supply side
The pool 93 and the take-up spool 94 are almost the same as the print head H.
The print head H is loaded into the apparatus main body so as to be parallel.
It is necessary to feed the ink tape in the direction perpendicular to the length direction of the
is there. However, the ink tape shown in FIG.
The cassette is a commercially available ink tape cassette shown in Fig. 13.
In the same way as in
This is provided with a supply spool 93 and a take-up spool 94.
The width W of the ink tape cassette in the front-rear direction
Therefore, this ink tape cassette
In order to load the main unit in the above condition,
Large cassette storage space in the front-back direction inside the body
As shown in Fig. 14,
The small printing device that uses a tape cassette is
It is a thick type with a considerably large width in the front-rear direction.
There was a problem. The present invention has been made in view of the above situation.
The purpose of the
Set components such as sets in the large
To reduce the thickness of the main body
It is an object of the present invention to provide a suitable printing device. [Means for Solving the Problems] According to the present invention, the apparatus main body is moved and printing is performed on recording paper.
In the printing device, a cassette storage space is provided in the lower part inside, and
An apparatus main body provided with a battery housing, a thermal print head, its support, and the print head;
An elastic member for pressing the recording paper toward the recording paper.
The end of the cassette is supported by the apparatus main body in a cantilever manner, and
The print head is located at the bottom of the device
A print head unit provided so as to be exposed; and
And a piece of the print head unit.
Cantilever supported on the device body on the same side as the support end
Ink cassette winding shaft and thermal transfer ink tape in cassette case
Supply tape spooled with ink tape, and the ink
The ink tape take-up shaft.
Take-up spool that winds the ink tape
The cassette case is provided vertically.
In the part below the supply spool and the take-up spool,
One side of the cassette case with the print head unit
Side of the print head unit
And the print head unit housing is closed.
Then, it is fed out from the supply side spool and the winding side
Put the ink tape wound on the spool into the print head unit.
Tape guide that guides you through the outside of the knit housing
An ink tape cassette provided with: a print head unit of the apparatus main body;
On the side opposite to the cantilevered support end of the
The openable and closable body that constitutes a part of this device body is
The cassette housing space is opened to the outside by opening.
An opening / closing unit for driving the print head stored in the battery storage unit.
And a battery for
You. [Operation] That is, the printing apparatus of the present invention is an ink tape cassette.
The feed spool and the take-up spool.
And the ink tape cassette.
Set the ink tape take-up shaft that engages with the take-up spool
Provided above the print head, the ink tape cassette
The supply spool and the take-up spool are
So that it is loaded into the main unit while it is positioned above the
And an ink tape cassette loaded in the main unit.
The battery is stored above the
Make a large space in the front-back direction of the device body
It can be a shape that does not. In addition, the power
The print head unit and ink cartridge
The loop take-up shaft is cantilevered, and the cassette storage space is openable and closable
Can be opened to the outside by the
It is possible to load the ink tape cassette into the
it can. Embodiment Hereinafter, as an embodiment of the present invention, a document is read and
A small printing device that prints the read information on external recording paper
An example will be described with reference to the drawings. The small printing device of this embodiment is shown in FIG. 2 and FIG.
In the figure, reference numeral 1 indicates a vertically long box-shaped hand.
It is a device main body of a size that can be held. In front of this device body 1
An operation start switch 2 is provided at the center of the surface.
At the same time, the enlarged print
-3, reset / clear key 4 and reading width designation switch
Switch 5 is provided, and a power supply
Mode changeover switch 6 also serving as a switch, and power ON indication
LED (Light Emitting Diode) 7a, the remaining memory is less than a certain amount
LED 7b for memory remaining display that lights up when
For speed warning that lights when the moving speed of the character device is too fast
An LED 7c is provided. Also, on one side of the device body 1
Is provided with a print density adjusting knob 8. The configuration of this small printing device will be described.
The apparatus, as shown in FIG.
Front case block A and rear case block B
And a chassis block C provided in the apparatus main body 1.
It has become. Describing the front case block A,
The front case block A is shown in FIG. 1 and FIG.
As shown in FIG.
Start switch 2 on the front of switch 1a
Key 3, reset / clear key 4, and reading width designation key
A switch 5 and one side of the front case 1a
The print density adjusting knob 8 is provided on the surface. Above
The operation start switch 2 is provided on the surface of the front case 1a.
The large area switch button 2a and the central part of this switch button 2a
Switches mounted on the inner surface of the front case 1a facing each other
The switch button 2a is
And is fitted so that it can be pushed into the opening provided in the
A rubber member provided between the back surface and the switch substrate 2b
9 presses against the case surface side. Open this operation
The start switch 2 is turned on by pressing the switch button 2a.
When the switch button 2a is pressed, this switch
The button 2a is pushed in while elastically deforming the rubber member 9,
The movable contact 10 formed at the center of the back surface of the switch button 2a
a starts operating when a contacts the fixed contact 10b on the switch board 2b surface
Switch 2 is turned on. In addition, the enlarged print designation key
-3 and reset / clear key 4 are in the front case
Key buttons 3a and 4a fitted so that they can be pushed into 1a, and both keys
-Attached to the inner surface of the front case 1a facing the buttons 3a, 4a
Key contact board 11, and each of these keys 3,
4 touches the key contact board 11 by pressing the key buttons 3a and 4a.
It is turned on by letting you do it. On the other hand, the reading width
The switch 5 is a slide switch. This reading width
The designated switch 5 is located on the surface of the front case 1a
Slide operation knob 5a provided slidably
Front knob with the operation knob 5a facing the slide area.
Switch board 5b attached to the inner surface of the base 1a.
On the switch board 5b, the sliding direction of the operation knob 5a
A number of fixed contacts are formed along the control knob 5a.
Slides on the surface of the switch board 5b to select the fixed contacts.
Is formed. Fig. 1
6 and FIG. 6, reference numeral 12 is provided in the front case 1a.
Control unit. This control unit 12
A plurality of LSI chips 13 are mounted on the substrate 12a.
The switch boards 2b and 5b and the key contact board 11 are
Connected to control circuit unit 12 by lead wires not shown
Have been. Although not shown, the circuit board 12a
Is a print density adjusting knob having the print density adjusting knob 8
A volume is attached, and the print density adjustment knob 8
One side protrudes from the side surface of the front case 1a.
14a is located at the lower end of the front case 1a on one side.
A first main contact roller provided in close proximity to the first main contact roller;
The lower part of the main paper contact roller 14a is below the front case 1a.
Rotatable on the front case 1a with a slight protrusion
It is pivoted. Furthermore, at the lower end of the front case 1a
A horizontal overhanging plate 15 is formed to overhang
A horizontally long LDE array 16 that illuminates the original surface
When the printer is placed on a document or external recording paper,
A paper surface detection switch 17 for detecting this is provided.
This paper surface detection switch 17 is a microphone with an operating pin 17a.
B switch. This operating pin 17a is always
Projected below the front case 1a by spring force
Pressing the printer on the original or external recording paper
When it is placed, it comes into contact with the paper and is pushed up.
The detection switch 17 is turned on by pushing up the operation pin 17a.
It has become. On the other hand, the rear case block B is shown in FIG. 1 and FIG.
As shown in FIG.
Mode switch 6 also serving as a power switch
And for power on display, memory remaining display and speed warning
LED7a, 7b, 7c. Mode switching
The switch 6 is a slide switch. This mode
Switch 6 is laterally swung on the surface of the rear case 1b.
Slide operation knob 6a provided for riding and this
Installed within the thickness of the rear case 1b, facing the operation knob 6a
Switch board 6b.
On the surface of the plate 6b, there are multiple along the sliding direction of the operation knob 6a
Fixed contact is formed, and the operation knob 6a has a switch board
The movable contact that slides on the 6b surface and contacts the fixed contacts
Has been established. This operation knob 6a is used for the P shown in FIG.
Position (print mode switching position) and R position
Position (reading mode switching position) and OFF position
And the E position (the ink tape cassette 70
Eject position),
When the mode switch 6 is set to the OFF position
Power is turned off when the
Knob 6a is in print mode switching position P or reading
When sliding to the mode switching position R,
Turn on the power source and set the printer to print mode or
The mode is switched to the reading mode. Note that this
The switch board 6b of the mode changeover switch 6 is not shown.
The control unit of the front case block A is
Unit 12 is connected. FIG. 1 and FIG.
18 is provided at the lower end of the rear case block B.
The auxiliary roller unit. This auxiliary roller unit
18 is a lifting / lowering provided in the rear case 1b so as to be slidable up and down.
A pair of left and right auxiliary paper contact rollers 18a, 18b are mounted on the plate 19.
The auxiliary paper contact rollers 18a and 18b are
Attached to a horizontal roller shaft 20 with both ends supported on both sides of
Have been killed. This auxiliary roller unit 18 is
Linked with the slide operation of the operation knob 6a of the selector switch 6
And move up and down. That is, FIG.
In the figure, 21 is the right and left ones formed on the elevating plate 19.
Each cam groove 21 has a pair of cam grooves 21
Form lower horizontal groove 21a and upper horizontal groove 21b with low difference
Inclined groove connecting the horizontal groove portions 21a and 21b at the center
Part 21c and the end of the upper horizontal groove 21b.
Has a vertical groove 21d that rises upward.
ing. Each of the cam grooves 21 is fixed to the operation knob 6a.
The pair of cam groove engaging pins 22 slidably engage with each other
Have been. The cam groove engaging pin 22 is provided on the operation knob 6a.
Slides in the cam groove 21 by sliding
The cam groove engaging pin 22 is
The operation knob 6a is at the print mode switching position P
When it is located in the lower horizontal groove portion 21a of the cam groove 21,
Move the operation knob 6a to the reading mode switching position R.
When lifted, descend the elevating plate 19 through the inclined groove 21c
To the beginning of the upper horizontal groove 21b
When knob 6a is moved to the OFF position, the upper side is horizontal.
Move to the middle of the groove 21b and eject the operation knob 6a.
When moved to the position E, the upper horizontal groove
It moves to the end of 21b, that is, below the vertical groove 21d. In other words, above
The auxiliary roller unit 189 has the mode changeover switch 6
Raised when switching to print mode switching position P
The mode changeover switch 6 is set to the reading mode changeover position.
Lowered when switching to section R, this auxiliary row
Roller unit 18 is an auxiliary paper contact roller in the print mode.
The lower end of 18a, 18b is located under the rear case 1b, and
It is located at a position protruding almost at the same level as the lower end of the
In the reading mode, the lower ends of the auxiliary paper contact rollers 18a and 18b are in the first position.
It comes to a position protruding below the main paper contact roller 14a. Ma
The auxiliary roller unit 18 is provided with a mode switch
6 to OFF position and eject position E
It is at the same level as in read mode when it is changed
Is switched to the eject position E, the cam groove engages.
The pin 22 comes under the vertical groove 21d of the cam groove 21 and the vertical groove 2
In this state, the auxiliary lock is
The roller unit 18 can be pulled further downward.
At this time, the lowering of the auxiliary roller unit 18 and the
Return to the original position is performed manually. Next, the chassis block C will be described. This
Chassis block C and front case block A
Device book composed by combining with rear case block B
The chassis block C is housed in the body 1.
It has the following configuration. That is, FIG. 1 and
4 to 7, reference numeral 23 denotes one side of the apparatus main body 1.
This chassis is provided vertically along the surface.
A second main contact roller 14b is rotatable at the lower end of the chassis 23.
Noh is supported. The second main contact roller 14b is
First main contact roller provided on front case block A
The second main contact roller 14b is a pair with the first main contact roller 14b.
It is provided at the same level as the main paper contact roller 14a,
The main body 1 includes the two main paper contact rollers 14a and 14b and a rear cable.
4 pieces with two auxiliary paper contact rollers 18a and 18b of sblock B
Contacting the original or recording paper via the paper contact roller
It is scanned and moved on the paper. 24 is the lower end of the chassis 23
Main encoder unit for detecting the scanning movement amount provided on the outer surface
It is a knit. This main encoder unit 24
The rotation of the second main contact roller 14b causes the main body 1 to run.
The main encoder unit
Unit 24 is rotatably mounted on a support shaft 25 fixed to the chassis 23.
Detects the supported rotating disk 26 and the amount of rotation of the rotating disk 26
And a rotation amount detector 27,
Has a number of slits 26a all around its circumference.
It is provided at regular intervals. The rotation amount detector 27
Is a U-shape that holds the outer periphery of the rotating disk 26 from both sides.
The rotation amount detector 27 has a light emitting diode.
Light-emitting devices such as light-emitting devices and light-receiving devices such as phototransistors
(Both not shown) face each other with the rotating disk 26 interposed
It is provided as follows. This rotation amount detector 27 is a chassis
Fixed to 23. The rotating disk 26 is a second main contact row.
Is rotated through the rotation transmission belt 28 by the rotation of the
The rotation transmission belt 28 is formed by the second main contact roller 14.
b and pulleys 29a, 2 that rotate integrally with rotating disk 26, respectively.
It is wrapped around 9b. That is, the above main encoder
The unit 24 is rotated by the rotation of the second main contact roller 14b.
The amount of rotation of the rotating disk 26 to be rotated, that is, the scanning movement of the apparatus body 1
The rotation amount is detected by the rotation amount detector 27.
The shift amount detector 27 detects the light from the light-emitting element
Pulse signal when received by the photodetector through the
Signal is output. 30 is the lower end of the chassis 23
It is a print head unit attached to the side. This print
The head unit 30 includes a head support frame 31 and a front end surface.
(Lower end face) along the length direction
Horizontal thermal print head 32 with array of heating elements (heating elements)
And a pair of right and left pushes to press the print head 32 downward.
A spring (coil spring) 33 and a print head 32
Is the scanning direction of the printing device
Direction, that is, perpendicular to the front-rear direction of the device.
Have been. The head support frame 31 includes a print head 32
Vertical back plate 31a facing the back of
A horizontal top plate 31b extending forward from the
The vertical end plate portion 31c is formed.
The frame support frame 31 has its base end fixed to the chassis 23.
It is supported in a cantilever manner, and a cassette accommodation space in the apparatus main body 1
(Empty between the lower end of the device body and the motor housing 42 described later)
The print head 32 is located at the lower end of the apparatus body 1
It is provided so as to be exposed. Also this head
At the end plate 31c of the support frame 31 and the lower end of the chassis 23
The print head support shafts 34a and 34b face each other
Each is fixed horizontally. This print head support shaft 34a,
34b is a vertically long groove 35 formed on both sides of the print head 32.
The print head 32 is slidably fitted in the
The head support shafts 34a and 34b
It is supported movably up and down within the length of the long groove 35.
The pair of pressing springs 33 have the same spring force.
Each of the pressing springs 33 is provided on the head support frame 31.
Interposed between the upper plate portion 31b and the upper end surface of the print head 32
The print head 32 is pressed downward. Each of these springs
33, the print head 32 is brought into contact with the recording paper with moderate contact pressure.
The print head 32 has a length range of the long groove 35.
Contact the recording paper with a constant contact pressure while moving up and down
Touching and the main unit 1
When standing, of course, the device body 1
Even if it is tilted, it can be locked in the horizontal direction within the length of the long groove 35.
So that it always comes in flat contact with the recording paper
Has become. 36 and 37 are the front and rear of the print head 32.
Spring and head tilt adjustment for adjusting the tilt angle
The leaf spring 36 is attached to the back of the head support frame 31.
Attached to the face plate 31a and from the print head support shafts 34a and 34b
On the lower side, it slidably contacts the back of the print head 32,
The head tilt adjustment screw 37 is located on the back of the head support frame 31.
The print head support shafts 34a and 34b
On the upper side, slidably abuts the back of the print head 32
I have. The head inclination adjusting screw 37 is provided in front of the print head 32.
Backward tilt angle, that is, contact angle with recording paper
This head tilt angle is turned by the driver when
When the adjustment screw 37 is turned in the screwing direction, the print head 32
Tilt in the direction of falling to the front side against the spring force of the spring 36,
Turning the head inclination adjustment screw 37 in the pull-out direction
Direction in which the pad 32 falls to the rear side by the spring force of the leaf spring 36
Contact angle between the print head 32 and the recording paper.
Can be adjusted to an optimal state. 38 is the rear case
1b, a drive provided opposite the head tilt adjustment screw 37.
Hole 38 for adjusting the head tilt angle.
Insert a screwdriver from the hole 38 and adjust the head inclination
This operation is performed from the outside of the apparatus main body 1 by turning 37.
The adjustment of the head inclination angle is performed by the ink
This is performed with the tape cassette 70 pulled out. On the other hand, in FIG. 1 and FIGS.
Of the ink tape cassette 70 loaded in the main body 1
Ink tape to wind cut tape 81 according to print operation
It is a winding unit. This ink tape winding unit
The spool 39 takes up the spool 73 on the winding side of the ink tape cassette 70.
The ink tape take-up shaft 40 that rotates in the take-up direction
And a drive motor 41 for the tape winding shaft 40.
The ink tape take-up shaft 40 is located in the cassette housing empty space in the apparatus main body 1.
In the meantime, position the print head unit 30
It is provided almost parallel to the printing dot arrangement direction of the head 32.
Have been. This ink tape winding shaft 40 is an ink tape
One that fits and engages with the take-up spool 734 of the cassette 70
The ink tape winding shaft 40 has a central shaft 40a and an outer periphery.
The outer shaft 40b formed with a spool engaging projection along the axial direction
It has a fitting and fixed structure. This ink tape winding
The shaft 40 can rotate the base end of the center shaft 40a to the chassis 23.
Noh cantilevered and supported horizontally by chassis 23
You. Also, the take-up shaft drive motor 41 is connected to the ink tape take-up shaft.
Motor storage formed in chassis 23 located above 40
The motor shaft 41a is fixed in the
3 penetrates and protrudes from its outer surface. And this
A take-up shaft drive gear 43 is fixed to the end of the motor shaft 41a.
The drive gear 43 is a first gear supported on the chassis 23.
Ink tape via intermediate gear 44 and second intermediate gear 45
It is engaged with a passive gear 46 fixed to the shaft end of the take-up shaft 40.
You. Also, 47 indicates ink from the rotation speed of the take-up shaft drive motor 4.
Rotation speed of the tape winding shaft 40, that is, winding of the ink tape 81
Motor rotation detection provided for detecting the rotation speed.
Encoder unit (hereinafter referred to as motor encoder unit)
This motor encoder unit 47
A slit 48a is provided at one location on the outer periphery fixed to the shaft 41a.
Rotating disk 48 and a rotation detector fixed to the chassis 23
It consists of 49. The rotation speed detector 49 is as described above.
Rotation amount of main encoder unit 24 for scanning movement amount detection
As with the detector 27, the light emitting element and the light receiving element (both shown
Not provided) so that they face each other with the rotating disk 49 interposed therebetween.
In this rotation detector 49, the rotating disk 48 rotates once.
Every time, that is, the light from the light-emitting element
Pulsed when light is received by the light receiving element through the lit 48a
Output a signal. 50 is the ink tape cassette 70
Supply-side spool engagement shaft that fits and engages with supply-side spool 74
The spool engagement shaft 50 is also located above the print unit 30.
To the lower side of the ink tape winding shaft 40
It is provided flat. This spool engagement shaft 50 is
It is a hollow shaft that forms a spool engaging ridge along the axial direction.
And rotates on a fixed shaft 51 that is cantilevered on the chassis 23.
And it is fitted slidably in the axial direction. 52 is a spoo
Brake consisting of a coil spring inserted into the engagement shaft 50
The spring 53 is fitted to the fixed shaft slidably in the axial direction.
And the frictional contact with the inner surface of the tip of the spool engagement shaft 50
One end of the brake spring 52 is attached to the chassis 23.
The other end is in elastic contact with the brake
Press the rake member 53 against the inner surface of the tip of the spool engagement shaft 50
ing. That is, the brake spring 52 and the brake
The member 53 is a supply side spool 74 of the ink tape cassette 70.
Into the supply side spool 74 and
This brakes the rotation of the pool engagement shaft 50, and engages the spool
The shaft 50 winds the ink tape 81 around the winding spool 73.
Supply spoon that rotates in the tape feeding direction
To the ink tape 81 with a back tension.
Is given. Also, the above brake
The spring 52 pushes the supply-side spool engagement shaft 50 toward its distal end.
The spool engagement shaft.
50 indicates that the ink tape cassette 70 is loaded in the apparatus main body 1.
If not, push it forward as shown in Fig. 4.
Have been. Reference numeral 54 denotes a reading unit for reading an image on the original surface.
The reading unit 54 is also attached to the chassis 23.
I have. 8 and 9 show details of the reading unit 54.
The figure shows a detailed structure, 55 is the motor on the chassis 23
Horizontal base that can be mounted so that it protrudes forward from the storage section 42
On the base 55, a horizontally long reading section circuit board 56 is provided.
The circuit board 56 has a base 55
In opposition to the reading opening 58 provided at the center in the length direction,
One-dimensional image sensor 57 such as CCD with light receiving surface facing down
Installed. This image sensor 57
So that the direction of the row is orthogonal to the scanning movement direction of the apparatus body 1
And installed along the length of the circuit board 56.
You. The lower surface of the base 55 is opposed to the reading opening 58.
Then, a lens barrel 59 is attached, and this lens barrel 59 is mounted.
There is a reflection from the original surface illuminated by the LED array 16 inside.
An imaging lens that forms the emitted light on the light receiving surface of the image sensor 57
The size 60 is provided. The reading section circuit board 56 is
Both ends of the board are placed on the board supporting portions 55a protruding from both ends of the table 55.
Section is slidably supported, and the board width direction (image sensor
(In the direction perpendicular to the pixel column direction of the camera 57)
The image sensor 57 has the circuit board 56
By moving, the pixel row is moved along the optical axis of the imaging lens 60.
The position is adjusted so as to match the position. This
Explaining the position adjustment mechanism of the image sensor of
8 and 9, reference numeral 61 denotes a reading unit 54.
Disc-shaped sensor position adjustment knobs provided at both ends
The sensor position adjustment knob 61 has its center
To be rotatable on the support shaft 62 screwed into the base 55 and fixed.
It is pivoted. Also, the sensor position adjustment knob 61
On the lower surface, a disk-shaped rotary
The rotating cam 63 is formed integrally with the rotating cam 63.
Fits in horizontally long rectangular openings 64 provided at both ends of substrate 56
Has been entered. The width of the opening 61 is equal to the diameter of the rotating cam 63.
The rotating cam 63 has approximately the same width.
The sides are in sliding contact with both sides of the opening 64. In addition, above
The thickness of the rotary cam 63 is almost the same as the thickness of the circuit board 56.
The sensor position adjustment knob 61 has a circuit
Sliding contact with the upper surface of the board 56 so that the circuit board 56 does not float
I'm holding down. The position adjustment mechanism includes a sensor position adjustment mechanism.
Turning the knob 61 moves the circuit board 56 in the width direction.
Turn the sensor position adjustment knob 61 to rotate
Due to the eccentric rotation of the cam 63, the circuit board 56 is shown by a chain line in FIG.
Since it is moved laterally as shown, it is attached to the circuit board 56.
The pixel row indicates the position of the image sensor 57
Can be adjusted to coincide with the optical axis of the lens 60. What
The sensor position adjustment knob 61 is provided on the upper surface of the outer peripheral part.
A tool such as a screwdriver is fitted into the groove 61a and turned. 1 and 6, reference numeral 65 denotes a chassis 23.
A power supply unit provided at the upper end of the power supply unit.
The knit 65 is a battery housing formed at the upper end of the chassis 23.
A power battery 67 is housed in the battery 66. That is, the chassis block C is mounted on the second main
Roller 14b, the rotating disk 26 and the rotation amount detector 27, and
2. Mechanism for transmitting the rotation of the main paper contact roller 14b to the rotating disk 26
Main head unit 24 with
And a mark provided with its pressing spring 33 and a head inclination adjusting mechanism.
Character head unit 30, ink tape winding shaft 40 and its drive
With a dynamic motor 41 and a motor encoder unit 47
Equipped with an ink tape winding unit 39 and a rotation braking mechanism
Supply side spool engagement shaft 50, image sensor 57 and
Equipped with an imaging lens 60, an image sensor 57, and a position adjustment mechanism
Read unit 54 and power supply unit 65
This is provided in the server 23. Then, the printing apparatus moves the chassis block C to the
The second main contact roller 14b is located on the front case block A side.
Positioned so that it is at the same level as the first main contact roller 14a
And put it in the rear case 1b.
Screw the chassis 23 to the rear case 1b
Attach it to the block B and
Join the front case block A to the
Of the front case 1a
Can be erected. Next, the ink tape cassette used in the printing device
The ink tape cassette 70 will now be described.
Has a shape as shown in FIG. Fig. 10
Is an exploded view of this ink tape cassette 70
And 71 is a vertically long box-shaped cassette case with the bottom end open.
The cassette case 71 is provided between the lower end of the apparatus main body 1 and the module.
That fits in the cassette storage space between the data storage section 42
And an image sensor on the rear case 1b side of the main body 1.
Thickness that fits so as not to obstruct the field of view of
Have been. This cassette case 71 is flush with the front of the case.
The front side case body 71a forming the side surface, the case back surface, etc.
Combined with the rear case body 71b that forms the side surface
Have been. The upper end of the cassette case 71
And the intermediate part, the ink tape winding shaft 40 of the apparatus main body 1 and
And the take-up side spool that fits into the supply side spool engagement shaft 50, respectively.
The pool 73 and the supply side spool 74 are horizontally arranged side by side
It is provided in. These two spools 73 and 74 are
The ink tape take-up shaft 40 and the supply side
An engagement groove that engages with the spool engagement ridge of the pool engagement shaft 50 is formed.
The two spools 73, 74
Is a bearing whose one end is provided on one side of the cassette case 71.
The other end is inserted into the holes 75 and 76, and the other end is inserted into the cassette case 71.
Rotatable by inserting it into the bearing sleeve 77, 78 formed on the inner surface on the other side of
It is supported by. In addition, the above
Part below supply spool 74 and take-up spool 73
Space of the printing head supported by the apparatus main body 1 in a cantilever manner.
Print head unit for inserting the print unit 30
It is a storage section, and on one side of the cassette case 71,
The print head unit 30 is attached to one side of a cassette case 71.
From the side into the print head unit housing.
Vertical notch 72 is formed. In addition, cassette
At the front and rear edges of the lower end opening of the case 71, the print head unit is provided.
A pair of tape guide shafts 79a, 79 sandwiching the knit housing
b is provided. These tape guide shafts 79a, 79b
One end is fixed to both sides of the open end of the cutout 72, and the other end is
Are formed on the other inner surface of the cassette case 71 on the other side.
It is fitted and fixed to 80b and is provided horizontally. And
Thermal transfer ink tape wound on the supply spool 74
81 is connected to the printing by the tape guide shafts 79a and 79b.
Pass through the outside of the storage unit (see Fig. 6)
Guided through the opening at the bottom of the case
Wrapped around le 73. 82 is a cassette case 71
It is a tape guide shaft provided inside. In addition, the supply side
Inside the spool 74, as shown in FIG.
The pool 74 was completely fitted to the supply side spool engagement shaft 50
When the spool abuts against the shaft end of the spool engagement shaft 50,
A pressing step 83 for pressing the engaging shaft 50 in the proximal direction is formed.
ing. On the other hand, one side of the apparatus main body 1,
Unit 30, the ink tape take-up shaft 40, and the supply side
On the side opposite to the cantilever support side of the pool engagement shaft 50,
As shown in FIG. 1, the front case 1a and the rear case
The cassette loading port 1c formed by cutting the side of the
The cassette loading slot 1c has an
Corresponding to the cassette loading port 1c of the cassette
The cassette housing space covers the
An opening / closing lid 1d that opens to the outside of the body 1 is provided. This
The open / close lid 1d has one side edge thereof
Pivotally supported by a hinge 68 on the side edge of the case 1a side,
It is attached to the front case 1a so that it can be opened and closed. Ma
The lid 1d was closed on the inner surface of the other side edge of the lid 1d.
A hook member 69a for locking in the state is provided.
At the side edge of the cassette loading port 1c on the rear case 1b side,
A lock projection 69b for hooking the hook member 69a is protruded.
ing. The hook member 69a is vertically attached to the outer surface of the lid 1d.
Lock knob (not shown) provided to be slidable in the direction
Is moved up and down by the slide operation of
When the lock knob is slid downward in the closed state,
Hook member 69a engages lock projection 69b from above to open and close
Lock the lid 1d and slide the lock knob upward.
The hook member 69a is disengaged above the lock projection 69b.
The lid 1d is unlocked. The ink tape cassette 70 is provided with the opening / closing lid.
Open 1d and insert it into the main unit 1 through the cassette loading port 1c.
Is filled. This ink tape cassette 70 has a notch 71
From the side surface formed, the notch 72 is
To the print head unit 30 inside and the take-up spool
73 and the exposed end of the supply side spool 74
Ink tape take-up shaft 40 and supply side spool engagement shaft 50
Insert the ink tape cassette 70
When inserted into the apparatus main body 1, it is shown in FIG. 5 and FIG.
The print head unit 30 is
The print head 32 into the cassette case 71
The exposed portion of the ink tape at the bottom of the
Facing from above, and the ink tape
The take-up shaft 40 and the supply side spool engagement shaft 50 are
To the take-up spool 73 and supply spool 74 of the set 70
Each fits and engages. That is, the ink tape cover
The set 70 includes the take-up spool 73 and the supply spool
74 is almost flat with the printing dot arrangement direction of the print head 32.
And the spools 73 and 74 are positioned above the print head 32.
It is loaded into the apparatus main body 1 in a state where it comes to the side. This place
In the case, it is pushed in the tip direction by the brake spring 52
The supply side spool engaging shaft 50 is completely
It is pushed out until it is fitted, but the supply side spool 74
Is completely fitted and the pushing step 83 in the supply side spool 74 is
When it comes into contact with the shaft end of the supply side spool engagement shaft 50, the supply side spool engages.
The pool engagement shaft 50 is at the final loading position of the ink tape cassette 70.
Do not compress the brake spring 52 with the insertion
Then, it is pushed in the proximal direction as shown in FIG. But
Then, the ink tape cassette 70 is loaded into the apparatus main body 1.
Then, the resilient force of the brake spring 52 causes the brake
The material 53 is strongly pressed against the inner surface of the shaft end of the supply side spool engagement shaft 50.
And thereby the supply side spool engagement shaft 50
Of the ink tape cassette 70
The ink tape 81 fed from the supply spool 74
To give the tension. The device body 1
The ink tape cassette 70 loaded inside the cassette
Close the lid 1d of the filler port 1c and lock this lid 1d.
With the opening and closing lid 1d, the rear side is received and the loading position
Is held in place. In addition, the ink tape in the apparatus body 1
To load the cassette 70, use the operation switch of the mode changeover switch 6.
After switching 6a to eject position E,
This can be done after lowering the roller unit 18,
In this case, the auxiliary on the cassette loading port 1c side of the apparatus body 1
The paper contact roller 18a does not interfere with cassette loading.
No. This is because the ink tape cassette 70
The same applies to the case of extracting Above auxiliary roller unit
18 can be lowered by pulling the roller shaft 20 downward by hand.
The operation knob 6a of the mode switch 6
When the mode is switched to the eject position E,
The cam groove engaging pin 22 that moves together with 6a
Because it comes under the vertical groove 21d of the cam groove 21, the auxiliary roller
Unit 18 can be lowered. The device body 1
Pull out the ink tape cassette 70 from inside by opening and closing the lid.
1d is opened, but in this case, the ink tape cassette
The supply-side spool 74 fitted and engaged with the supply-side spool 74 of the
The pool engagement shaft 50 is pushed in the distal direction by the brake spring 52.
When the lid 1d is opened due to the pressure, the brake spring
52 together with the supply side spool engagement shaft 50 due to the spring force of 52.
Cut tape cassette 70 is pushed out to cassette loading port 1c side.
And the side of the ink tape cassette 70 is the cassette loading port 1c.
The ink tape cassette 70.
Extraction can be easily performed. FIG. 11 schematically shows the configuration of the above-described small printing apparatus.
So this small printing device has the control unit 12 and LED
Front case block A incorporating array 16 and auxiliary
A rear case block B incorporating the roller unit 18;
Main encoder unit 24, print head unit 30,
Ink tape winding unit 39, reading unit 54 and
With chassis block C incorporating power supply unit 65
Consists of two blocks, a front case block
A LED array 16 and each unit of chassis block C
24, 30, 47, 54 and 65 are respectively
Flexible connector 90 such as a rat cable
Connected to the control unit 12 of the front case block A
I have. Next, the circuit board of the control unit 12 in FIG.
First about the configuration of the electronic circuit formed around 12a
This will be described with reference to FIG. The main encoder unit 24
As described above, the rotation disk 26, the rotation amount detector 27, etc.
And a pulse signal corresponding to the amount of movement of the apparatus body 1.
Signal, that is, a movement amount detection signal. This main
Movement amount detection signal output from encoder unit 24
Is a control unit 101, a timing signal generation unit 102, a speed detection unit
103, sent to the motor drive control unit 104. The control unit 101
The operation start switch in FIG. 2 and FIG.
2, Enlarged print designation key 3, Reset / Clear key
4, reading width designation switch 5, mode changeover switch 6,
Operate from the keys of the print density adjustment knob 8 and the switch 105.
Operation signal is given, and the temperature of the thermal print head 32 is
From the temperature sensor 106 which detects the temperature and the temperature of the recording paper b.
A degree detection signal is provided. Further, the control unit 101
There is no power supply voltage detector inside. And the system
The control unit 101 responds to operation signals from the keys and the switches 107 described above.
The LED 7a for power-on display in the LED unit 107 and the remaining memory
Lighting control of quantity display LED7b, speed warning LED7c and others
The control operation of each part is performed, and the mode changeover switch 6
To the read or print mode specified by
In response, operation commands R and P are given to the timing signal generation unit 102.
I can. In this case, if the control unit 101 is in the reading mode,
Operation command R, or operation command P in print mode
To the timing signal generator 102. The timing signal generator 102 operates from the controller 101.
When command R is given, the CCD exposure timing
Signal and the main encoder unit
A predetermined number of readings are synchronized with the movement detection signal given from
Timing signal A, serial / parallel conversion signal B,
Various timing signals such as a clock pulse C are generated.
The timing signal generator 102 operates from the controller 101.
When the command P is given, the print timing signal
Occur. Then, from the timing signal generator 102
The output CCD exposure timing signal is a one-dimensional image
The read timing signal A is sent to the A / D converter
Real / parallel conversion signal B is serial / parallel conversion
The clock pulse C is supplied to the address counter 111 and the
To the read width memory address control unit 112.
It is. The one-dimensional image sensor 57 receives the original
The light is read in synchronization with the CCD exposure timing signal, and
The signal is output to the A / D conversion unit 109 via the loop 108. This A / D converter
109, the input signal is black and white by the read timing signal A
Converts to a binary signal and sends it to serial / parallel converter 110
Output. The serial / parallel converter 110
The signal is converted into an 8-bit signal by the serial / parallel conversion signal B.
The data selector 113 converts the data into parallel signals for each
Output to the image data memory 114 via the Also, the data
The selector 113 connects the data line to the control unit 101.
Connected by the select signal D from the control unit 101.
One of serial / parallel converter 110 or controller 101
Is selected. Write address of the image data memory 114
Address (row and column address) is read width memory address
The address is indicated by the control unit 112 and the
Is determined. Here, the read width memory address control unit 112
The operation of the reading width designation switch 5 in FIG.
Read width address data based on the operation is given from the control unit 101.
Address, the number of addresses corresponding to the specified reading width
The write address specified by the counter 111
Will be That is, draw along the reading width designation switch 5.
Scale that matches the operation knob 5a from the zero point of the width scale
Only the image data up to the end is stored in the image data memory 114.
Write and store. Also, reading of the image data memory 114
The address is also transmitted from the control unit 101 through the address counter 111.
In this case, too, the read width memory address is used.
Based on the number of reading width addresses set in the
In this case, a read address for one line of printing is specified. Then, the reading of the original is completed, and
When the control mode is switched to the
To output the operation command P to the timing signal generator 102
In addition, the movement amount from the main encoder unit 24 is detected.
The data stored in the image data memory 114 is stored in accordance with the signal.
Sequentially read out through the data selector 113. This control unit 101
When the image data is read from the image data memory 114, the temperature
Head temperature from sensor 106, detection data of power supply voltage detector
The energizing time is set based on the values of the
And print data as thermal head drive circuit 11
Output to 5. This thermal head drive circuit 115 controls
When print data is sent from the unit 101, the timing
In synchronization with the timing signal from the
The multiple print head 32 is driven. Here, the motor drive control
The unit 104 is the main unit 1 from the main encoder unit 24.
Suitable for the take-up shaft drive motor 41 based on the movement amount detection signal of
By applying a simple motor drive pulse signal,
From the supply side spool 74 of the ink tape cassette 70
Ink tape 81 contacts the thermal print head 32.
It is wound on the winding spool 73 while being wound. In this case,
Of the winding shaft drive motor 41 by the encoder unit 47.
Rotation is detected and the motor encoder unit 47 is detected.
The winding speed of the ink tape 81 is adjusted based on the signal.
Motor drive control so that the speed matches the travel distance
The torque of the winding shaft drive motor 41 is controlled by the control unit 104.
You. Next, the operation of the small printing apparatus having the above configuration will be described.
I do. Reads information such as characters and images recorded on originals
First, set the mode switch 6 to the OFF position.
Mode to the read mode switching position R. Mo
Mode switch 6 to read mode switch position R
When switched, the power is turned on and the control unit 101 reads
Mode. At this time, the control unit 101
Turns on the power supply ON indicator LED 7a and turns on the power.
Is displayed, and the operation instruction R is transmitted to the timing signal generator.
Give to 102. At this time, the cam groove engaging pin 2 shown in FIG.
2 moves to the beginning of the upper horizontal groove 21b of the cam groove 21 to assist
The roller unit 18 is lowered, and the auxiliary paper contact rollers 18a, 18b
Project below the main paper contact rollers 14a, 14b. However
In this state, the user operates the device as shown in FIG.
Turn on the operation start switch 2 provided on the front of the body 1.
Then, the apparatus main body 1 is moved to the main paper contact rollers 14a and 14b and the auxiliary paper contact roller.
The rollers 18a and 18b are placed in contact with the original a surface. like this
When the apparatus main body 1 is placed on the document a,
17 comes into contact with the document a side and turns on.
And both the operation start switch 2 and the operation start switch 2 are turned on.
As a result, the control unit 101 enters the reading operation state and the LED array 16 is activated.
Light. This is the case when performing the printing described later.
The control unit 101 also controls the paper surface detection switch in this case.
When both switch 17 and operation start switch 2 are turned on.
Event operation state. Thereafter, the apparatus main body 1 is placed on the document a.
With the document placed, move it forward along the original a
1), the LED array 1
The projection light from 6 is illuminated on the original a surface, and the reflected light
The light enters the one-dimensional image sensor 57 via the image lens 60.
You. On the other hand, as the apparatus body 1 moves
Of the rotating paper contact rollers, the rotation of the second paper contact roller 14b
The rotation causes the rotating disk 26 of the main encoder unit 24 to rotate.
Rotate. By the rotation of the rotating disk 26, a rotation amount detector
27, a pulse signal corresponding to the amount of movement of the main body 1 is output.
It is. That is, the pulse output from the rotation amount detector 27 is
Signal of the main encoder unit 24 in FIG.
Output, and a movement amount detection signal for the printing apparatus main body 1
Control unit 101, timing signal generation unit 102, speed detection unit
103, sent to the motor drive control unit 104. On the other hand, the timing signal generation unit 102 reads from the control unit 101.
When the take-off operation command R is given, the CCD exposure
Generates an imaging signal and gives it to the one-dimensional image sensor 57.
And from the main encoder unit 24
According to the movement amount detection signal, the read timing signals A and
A / D converter 109 generates a serial / parallel conversion signal B.
And output to the serial / parallel converter 110 respectively.
You. Further, the timing signal generation unit 102
Generates clock pulse C in synchronization with parallel conversion signal B
Address counter 111 and read width memory address
Output to control section 112. The one-dimensional image sensor 57 is
Synchronized with the above CCD exposure timing signal from the
And a signal corresponding to the reflected light from the original a surface,
Output a signal. The output signal of this one-dimensional image sensor 57
The signal is amplified by the amplifier 108 and sent to the A / D converter 109.
It is. The A / D converter 109 is sent via the amplifier 108.
Reading the incoming image signal from the timing signal generator 102
Digital signal in synchronization with the timing signal A
And outputs it to the serial / parallel converter 110.
The serial / parallel conversion unit 110 converts the timing signal
Serial / parallel conversion signal sent from generator 102
The serial input signal is synchronized with the signal B, for example, every 8 bits.
Converts to parallel image data and goes to data selector 113
Output. This data selector 113 has a read mode
If specified, select D from control unit 101
Is switched to the serial / parallel converter 110 by
I have. Therefore, the serial / parallel converter 110
The output image data is output via the data selector 113.
The data is sent to the image data memory 114. This image data memo
The write address of the memory 114 is
Specified by the event output. This address counter 111
Is the clock pulse C from the timing signal generator 102
To sequentially increase the digit address by “1” and save the image data
Specify the address of Re 114. And the timing signal
The generation unit 102 stores one row of image data in the image data memory 114.
When the data is written, the generation of the timing signal is stopped and the
The next movement amount detection signal is sent from the in-encoder unit 24.
It is in a standby state until it is received. In this case, the reading width finger
The reading width of the document a is specified in advance by the setting switch 5
And the number of addresses converted to the specified width
It is set in the memory address control unit 112. Then
The dress counter 111 has an address corresponding to the specified reading width.
Match the write address for one line with the
The address is repeatedly specified for the data memory 114. Toes
Of the image data read by the image sensor 57.
Adjust the operation knob 5a from the zero point on the width scale in Fig. 2.
Only the image data up to the scale
Written to memory 114. The same operation as below
The image data read from the document a is repeated
The data is sequentially written to the memory 114. Here, when reading the document a, an auxiliary
Set the contact rollers 18a, 18b below the main contact rollers 14a, 14b.
As shown in FIG.
In this case, scanning is performed in a slightly inclined forward position.
You. Therefore, the print head 32 protruding from the lower surface of the apparatus
Of the document and the ink tape 81 under the tip of the
The print head 32 and the ink tape 81
Of the original a is prevented. In the speed detecting unit 103, the main encoder unit is used.
Movement of the device body 1 based on the pulse signal from the knit 24
If the speed is detected and the moving speed is too fast, the LED 107
Speed warning LED 7c is lit, warning the user
Information is given. This is the same when printing.
is there. Further, during the reading, the image data memory 114 is not read.
When the remaining memory capacity of the memory becomes low, the LED 7b
Lights up to notify that the remaining memory capacity is low. Next, the image data read from the document a as described above is read.
The operation when printing out data
You. To print out image data,
Set the changeover switch 6 to the print mode changeover position P
Change. Set the mode switch 6 to print mode
When switching to the switching position P, the control unit 101
Data selector 113 by the select signal D.
Is switched to the control unit 101 side. At this time, the cam groove engaging pin 22
Moves to the lower horizontal groove portion 21a of the cam groove 21 and the auxiliary roller
The unit 18 is raised, and the auxiliary paper contact rollers 18a and 18b are
The projection level is the same as that of the paper rollers 14a and 14b. In this state
The user attaches the printing device main body 1 to each
Use the paper contact rollers 14a, 14b and 18a, 18b for external recording paper such as notebooks.
Place in contact with surface b. Thus, the main body 1 is recorded.
When it is placed on paper b, the paper surface detection switch 17
Contact and turn ON, and the print head 32
Through the surface of the recording paper b. In this case, the print head
The compression spring 33 is not compressed by contact with the recording paper b.
The recording paper contact level of each paper contact roller 14a, 14b and 18a, 18b
To the recording paper b due to the repulsive force of the pressing spring 33.
Is pressed into contact. After that, turn ON the operation start switch 2.
Then, the printing apparatus main body 1 is moved forward along the surface of the recording paper b.
Inspection and movement of the device
The paper roller rotates, and the rotation of the second main paper contact roller 14b rotates.
The power is transmitted to the rotating disk 26 via the transmission belt 28. This time
As the rotating disk 26 rotates, the main encoder unit 24
In accordance with the moving speed of the apparatus main body 1 in the same manner as in the above reading.
A movement amount detection signal is extracted. By starting the movement of the device body 1, the main
When the movement amount detection signal is output from the
The take-up shaft drive motor 41 is driven by the
It is. As a result, the ink tape winding shaft 40 is rotationally driven.
And the take-up spool 73 of the ink tape cassette 70 is taken up.
The feed side spool 74
Ink tape 81 passes over the heat generating part of the thermal print head 32
It is wound on the winding side spool 73. In this case, the motor
The rotation of the winding shaft drive motor 41 is controlled by the encoder unit 47.
The detected motor drive control unit 104
Based on the detection signal given from the encoder unit 47.
The winding speed of the cut tape 81 is determined by the amount of movement of the apparatus main body 1, that is,
The torque of the take-up shaft drive motor 41 to match the printing speed
Perform control. This motor torque control is performed by the winding shaft drive mode.
Each time the motor 41 makes one rotation, the motor drive control unit 104
And the pulse signal period from the motor encoder unit 47
And the encoder pallet from the main encoder unit 24
The motor 41 is compared with the number of
Provided from the main encoder unit 24 during one rotation
If the number of encoder pulses to be
(When the moving speed of the main body 1 is faster than the tape winding speed)
Increase the tape drive speed by increasing the number of motor drive pulses.
Speed, and the number of encoder pulses is
(The moving speed of the main body 1 is the tape winding speed)
If it is slower than degrees, decrease the number of motor drive pulses.
To reduce the tape winding speed. This is the take-up sp
As the tape winding diameter of the rule 73 increases, the motor 41
The same applies when the load applied to the motor 41 increases.
When the tape winding speed slows down due to an increase in load
The number of encoder pulses during one rotation of the motor 41
At this time, the motor 41
The torque is increased and the tape winding speed is increased. On the other hand, the control unit 101 includes the main encoder unit 2
4 according to the movement detection signal sent from
A one-line print command is output to the
The signal generator 102 sends a signal to the thermal head drive circuit 115.
Outputs a lint timing signal. The control unit 101
Is the displacement detection signal from the main encoder unit 24
The row and column addresses of the image data memory 114 according to
Next, specify the image stored in the image data memory 114
The data is read via the data selector 113 and
The data is output to the head drive circuit 115 for each row. Control unit 1
01 is a black character of the print data when a one-line print command is given.
Number, head temperature from temperature sensor 106, power supply voltage detector
And the adjustment value of the print density adjustment knob 8, etc.
Set the energizing time for the thermal print head 32 in
The image data read from the image data memory 114 is
Output to the head drive circuit 115. This thermal head drive
The operation circuit 115 receives the control data from the control unit 101 and the timing.
Thermistor according to the timing signal from the
The print head 32 is driven. This thermal print head 32
Drives the image data via the ink tape 81.
It is thermally transferred onto the recording paper b. In this case, the movement of the device body 1
Along with this, the take-up shaft drive motor 41
40 is driven to rotate, and the ink tape is
81 unused parts are sent out and the above thermal print head
The used part after printing by 32
Is sequentially wound up by the reel 73. Printing device as described above
By moving the main body 1, the image data memory 11 is moved.
4 sequentially prints the image data stored on
Is The image data printed on the recording paper b is a document
a is printed with the same width as the reading width from
Enlarged print using the enlarged print designation key 3 in Fig. 2
The image data is enlarged to the width of the specified ratio
And print it. In addition, print end
Later, if you press the reset / clear key 4, the same image data
Can be printed repeatedly. Where the small
The type printing device records the print head 32 with the spring force of the pressing spring 33.
The print head 32 is always in contact with the recording paper b by pressing.
Printing is performed by contacting the recording paper b with a constant pressure.
Can be Further, the print head 32 is rotated
The apparatus main body 1 is moved left during scanning movement.
Even if the print head 32 is tilted to the right, the print head 32
Roll to the opposite side to always contact the recording paper b surface flat.
The printed image will not be blurred because
No. Thus, in the above-described small printing apparatus, the apparatus main body 1
On the recording paper b via the ink tape 81 at the lower end of the
The print head 32 in the direction in which the print dots
Is provided perpendicular to the scanning movement direction of the printing device.
In the apparatus main body 1, the position is located above the print head 32.
The ink tape take-up shaft 40 and the supply-side spool engagement shaft.
50 are arranged side by side up and down.
A vertical cassette with a cutout 72 into which the print head 32 enters
Position above the notch 72 in the
A supply-side spool 74 engaged with the supply-side spool engagement shaft 50;
The ink tape 81 is engaged with the ink tape winding shaft 40 to
The print side spool 73 is wound up and down
In the direction of the dot 32
Because the tape cassette 70 is removably loaded,
Printing is performed using ink tape 81 of width.
While holding the ink tape cassette 70,
Can be loaded without taking up a lot of space.
Wear. That is, the above-described small printing apparatus is provided with an ink tape cassette.
The supply side spool 74 and the take-up side spool 73
In addition to the structure provided vertically, ink tape
Take-up spool 73 and supply spool 74 of cassette 70
Ink tape take-up shaft 40 and supply side spool that engage with
An engagement shaft 50 is provided above the print head 32, and
Tape cassette 70 with its supply side spool 74 and take-up side spool.
With the pool 73 positioned above the print head 32, the main body 1
It is designed to be loaded into the
Supply spool 74 and take-up spool of cut tape cassette 70
If you install the printer 73 vertically on the
70 becomes vertical, but before and after this ink tape cassette 70
The width of the supply side spool and the take-up side spool
Compared to the conventional ink tape cassette with a pool
Small size printing device
According to the installation, the vertically long ink tape cassette 70 is
The device body 1 to be loaded also corresponds to the ink tape cassette 70.
And the ink table in the apparatus body 1
Battery 67 is stored in the upper position of the cassette 70
Therefore, the shape of the apparatus body 1 is changed in the front-back direction
Which does not take up a lot of space.
The battery 67 is located above the print head unit 30.
When printing, the weight of the battery 67 is
Acts to press the 30 thermal print heads 32 against the recording paper.
And stable printing is possible. In the above embodiment, the supply-side spoon is provided in the apparatus main body 1.
The supply spool engagement shaft 50 is provided.
50 is not required. In the above embodiment, the external recording
A small printing device that prints on paper has been described.
Akira recommends storing roll-shaped recording paper in the main unit.
And pull out the built-in recording paper under the device by scanning movement of the device.
It also applies to a small printing device that prints on this recording paper
If a self-propelled mechanism is provided on the main unit,
The above-mentioned self-propelled machine
It is possible to print by moving the device by self-propelled scanning.
Can also be. Further, in the above embodiment, the
A small printing device that prints the read data on recording paper
As described above, the present invention includes a key input unit.
Prints the upper part of the text input from the key input
It can also be applied to a small printing device. [Effect of the Invention] Since the printing device has the above-described configuration,
The cassette tape or battery in the direction of movement of the main unit.
Place it in a state that does not take up a large space in the front-back direction,
Since the equipment can be made thinner,
Easy to use when moving and printing. Also, from the opening / closing section
Easy ink tape cassette in the cassette storage space of the main unit
It can be attached to and detached from the
Stable with pressing force acting on thermal print head due to weight
Printing is possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG. 12 show an embodiment of a small-sized printing apparatus according to the present invention. FIG. 1 is an exploded perspective view, FIG. 2 and FIG.
FIG. 4 is a front view and a rear view, FIG. 4 is a vertical front view, FIG. 5 is a vertical front view in a state where an ink tape cassette is loaded,
6 and 7 are vertical side views in a printing state and a reading state, FIGS. 8 and 9 are vertical front and plan views of a reading unit, FIG. 10 is an exploded perspective view of an ink tape cassette, and FIG. The figure is a schematic view showing the basic configuration of a small printing apparatus, and FIG. 12 is a block diagram showing an electronic circuit of the small printing apparatus. FIG. 13 is a perspective view of an ink tape cassette used in a printing apparatus having a platen, and FIG. 14 is a perspective view of an ink tape cassette for a small printing apparatus which has been conventionally considered. 1 ... device main body, 30 ... print head unit, 32 ... print head, 39 ... ink tape winding unit, 40 ...
Ink tape take-up shaft, 41 …… Take-up shaft drive motor, 50 ……
Supply-side spool engagement shaft, 70 ... Ink tape cassette,
73 ... spool on the winding side, 74 ... spool on the supply side, 81 ...
Ink tape.

Claims (1)

(57) [Claims] A printing apparatus for printing on recording paper by moving an apparatus main body, comprising: a cassette housing space provided in an inner lower part; a battery housing part provided in an inner upper part; a thermal print head, a support part thereof, and the print head An elastic member for pressing the recording head toward the recording paper, one end of which is supported by the apparatus main body in a cantilever manner, and provided at a lower portion of the cassette accommodation space so that the print head is exposed at a lower end of the apparatus main body. A print head unit, and an ink tape winding provided in the cassette accommodating space so as to be located above the print head unit and supported by the apparatus main body on the same side as the cantilever support end of the print head unit. A take-up shaft, a thermal transfer ink tape in a cassette case, a supply spool on which the ink tape is wound, and the ink tape take-up shaft. And a take-up spool for taking up the ink tape by the rotation of the ink tape take-up shaft. The take-up spool is disposed vertically above and below the supply spool and the take-up spool of the cassette case. A print head unit accommodating portion for allowing the print head unit to enter from one side of the cassette case is provided, and the print head unit is fed out from the supply side spool with the print head unit accommodating portion interposed therebetween. An ink tape cassette provided with a tape guide portion for guiding an ink tape wound on a take-up spool so as to pass outside the print head unit accommodating portion; and the print head unit and the ink tape winding of the apparatus main body. It is provided on the opposite side of the cantilever support end of the spindle,
An opening / closing section that opens the cassette housing space to the outside by opening an openable opening / closing body that constitutes a part of the apparatus main body; and a battery for driving the print head housed in the battery housing section. A printing device comprising: