JPS62292063A - Picture data reader - Google Patents

Abstract

PURPOSE:To set an arbitrary read width with a simple operation by providing a sliding body at the part of a picture information read window and blockading the part of the read window by the sliding body. CONSTITUTION:When the information recorded in an original is read, sliding bodies 46a and 46b are operated by hand to set a read width to the original. In this case, as a needle 47 moves in propertion to the movement of the sliding bodies 46a and 46b, the read width of the original can be recognized from the scale of a scale part 48. A user abuts a read part 2 to the desired read face of an original B and moves a handy copying machine body 1 to the front of key 5a with pushing operation keys 5a and 5b. At this time, the projected light from a light source 11 is projected on the face of the original B through a read window 12 and its reflected light is made incident on a one-dimensional image sensor 15 through an opticalguaid. The width of the original read of a read window 12 becomes the width which is set by sliding bodies 46a and 46b.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to an image data reading device that reads external image data from an image information reading window provided in a housing.

[Prior art and its problems] Conventionally, for example, in an image data reading device that is equipped with a -dimensional image sensor and reads image data by obtaining sub-scanning by moving between the main body and a document, The reading width was determined by the shape of the information input window. For this reason, it was not possible to obtain image information with a desired reading width, and processing such as editing was extremely troublesome.

[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to provide an image data reading device that can set an arbitrary reading width with a simple operation.

[Summary of the Invention] The present invention includes an image data reading means having at least a one-dimensional scanning function in a housing, and an image information reading window formed in the housing for inputting image information to the image data reading means from outside the housing, A sliding body capable of closing the image information reading window is provided on the housing so as to be movable in the scanning direction of the image data reading means, and the reading width can be arbitrarily set by moving the vibrating body.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the external configuration of a handy copy ti embodying the present invention. In the same figure, reference numeral 1 denotes the main body of the handy copying machine, which has, for example, a width of 70 mm, a thickness of 30 mm+, a height of about 1601 [a], and an effective reading width and an effective print width of 4011 II 11. Read memory length 2001
It is assumed that the all and l dot density is 8 dots/mm and the print dot density is 8 dots/'+++m.

The handy copy machine main body 1 is provided with a head portion HA for reading and printing at its tip, that is, its lower end in the figure.

This head portion HA has a width and thickness of Handy Copy 11.
It is formed smaller than the main body 1, and a step is formed between it and the handy copy machine main body 1. The tip surface of the head portion HA is formed obliquely from the center toward both sides, and the reading portion 2 is provided on the sloped portions 1a and 1b.
and a print section 3 are provided, respectively. In addition, the above-mentioned handy copy machine main body 1 has a power supply and a
A read/print switch 4 is provided, and an operation key 5a is provided so as to face each other on both sides of the front and back sides.
, 5b are provided. The operation keys 5a and 5b are formed into a flat plate shape, and the handy copy machine main body 1 can be moved back and forth by holding the upper surface portions between the keys by hand. The above power/read/print selector switch 4 is
The on/off, reading, and printing operation modes are specified, and ta is turned on when each reading and printing mode is specified. Further, the Handy Copy i main body 1 is provided with a clear key 6 and a density adjustment volume 7 for adjusting print density at the end opposite to the side where the reading section 2 and printing section 3 are provided. The clear key 6 is used to erase the image memory when reading an image, and the printer 1 is used to locate the beginning of image data. In addition, the handy copy machine main body 1 has a power source located close to the reading section. An LED 8 is provided, and a memory LED 9 and a speed warning L E are provided on the upper end side of the front part in the figure.
D10 is placed.

Therefore, when reading II with the above-mentioned handy copy hoe, ii! i. Set the read/print selector switch 4 to the "read" position. When the power/read/print selector switch 4 is set to the "read" position, the @ source is turned on and the power LED 8 lights up. In this state, the reading section 2 is brought into contact with the document surface and moved while pressing the operation keys 5a and 5b.

If you want to print out the scanned image data, press the power/read/print switch 4 to touch the print sheets 1 to 3 to the printing paper A (plain paper), and press the operation key s.
While pressing a and sb, move the handy copy machine body 1 to arrow
This is done by moving in the direction.

Next, details of the reading section 2 and printing section 3 provided in the handy copy machine main body 1 will be explained with reference to FIGS. 2 and 3. As shown in FIGS. 2(a) and 2(b), the reading unit 2 is located within the handy copy hall main body 1 on the inclined surface 1a.
A light source 11 consisting of an LED array is disposed adjacent to the
A reading window 12 provided on the slope portion 1a by this light source 11
The document B to be read is illuminated through the light. In addition, a light guide 13 is provided in the handy copy machine main body 1 and extends upward from the vicinity of the slope portion 1a, and a lens 14 and a -dimensional image sensor 15 are sequentially arranged at a predetermined interval on the upper end side of the light guide 13. maintained and placed.

The above-mentioned -dimensional image sensor 15 is, for example, a 1024-bit one-dimensional COD, of which 320 bits (8do
t/Il1m and a width of 40+nm) is used.

The lens 14 and the -dimensional image sensor 15 are held at predetermined positions by a support 16.

This support body 16 is fixed to an inner frame 17 provided inside the handy copy machine main body 1 at a predetermined interval. An electronic component mounting section 18 and one battery storage section are provided adjacent to the support body 16, and the electronic component mounting section 1
The above-mentioned -dimensional image sensor 15 is connected to a circuit board 20 mounted on the circuit board 8 . Further, the circuit board 20 is connected to the clear key 6, the degree adjustment volume 7, and the like.

Furthermore, a pair of sliding bodies 46a and 46b for adjusting the reading width are slidably mounted on the reading window 12, as shown in FIGS. 3 and 4. The MIIJ bodies 46a, 46b have a reflectance of, for example, 8 on the back side, that is, on the side facing the light source 11.
Either a white coating of about 0% is applied, or a transparent material such as acrylic or other resin is used to eliminate differences in focal length, etc., and the surface is painted white. A pointer 47 for indicating the reading width is formed at the adjacent end of the pair of sliding bodies 46a, 46b, and the pointer 47 is positioned at the scale section 48 provided at the lower front of the main body 1 of the handy copy 1. I have to. That is, when the sliding bodies 46a, 46b are slid, the reading width is indicated by the shield needle 47 and the scale part 48.

A thermal head 21, an ink ribbon roll 22, a constant speed feed roller 23, and an ink ribbon take-up roll 24 are provided within the inner frame 11, and rubber rollers 25a, 25b, Gear 26.
21.28.29.30 are provided. The rubber rollers 25a and 25b are rotatably mounted on the inner frame 17 via a shaft 31, and their outer circumferential surfaces slightly protrude outward from cutouts 32 provided on both sides of the sloped portions 1a and 1b. There is. The gear 2G is coaxially fixed to the side of one of the rubber rollers 25a. This (a wheel 26 is formed to have a smaller diameter than the rubber roller 25a, and is connected to a gear 28 via an intermediate gear 27.
is the continuous feed roller 2 via the one-way clutch 33.
Connected to the 3rd axis.

This one-way clutch 33 is configured to transmit the rotation of the primary side to the secondary side only during printing operation, that is, the rotation of the gear 28 to the constant velocity feed roller 23 side.

Further, an encoder disk 34 is attached to the primary side of the one-way clutch 33, and the gear 28 and the encoder disk 34 are connected to each other regardless of the clutch operation of the one-way clutch 33.
4 are designed to rotate together.

As shown in FIG. 3, the encoder disk 34 is provided with a plurality of slits 35 radially spaced at regular intervals. Then, the LED 36 and the photo sensor 3 are arranged so as to face each other with the encoder disk 34 interposed therebetween.
7 is placed. In this case, the LED 36 is shown in FIG. 2(a).
As shown in FIG. 2, the photo sensor 37 is installed inside the handy copy machine main body 1, and the photosensor 37 is installed inside the inner frame 17. A through hole 38 is provided in the portion of the inner frame 17 where the photosensor 37 is mounted, and the projected light from the LED 36 is directed to the slit 35 of the encoder disk 34 and the through hole 38.
8 and enters the photo sensor 31. That is, the encoder disk 34, L E D
36, a photosensor 37, and the like constitute an encoder 39.

Further, on the slope portion 1b of the print section 3, a third
As shown in the figure, a print window 41 and an ink ribbon guide window 42 are provided in parallel. In this case, print window 4
1, the ink ribbon guide window 42 is located inside. The heat generating portion 21a of the thermal head 21 is inserted into the print window 41, and positioned so that its tip end surface slightly protrudes from the slope portion 1b.

As shown in FIG. 2(b), a slit 43 is provided in the stepped portion of the handy copy machine main body 1 on the side where the operation key 5a is provided, and the thermal transfer ink drawn out from the ink ribbon roll 22 is provided with a slit 43. The ribbon 22a is led out of the handy copy machine main body 1 through the slit 43, and then passes through the heat generating part 21a of the thermal head 21 and is inserted into the handy copy machine main body 1 from the ink ribbon guide window 42.
be introduced inside. The ink ribbon 22a introduced into the main body 1 of the handy copying machine is guided by a shaft 31, an ink ribbon guide 44, and a constant velocity feed roller 23, and is wound onto an ink ribbon take-up roll 24. Furthermore, the above-mentioned handy copy machine main body 1 is
As shown in FIG. 2 (1)), the surface on which the operation key 5b is provided is formed so that it can be opened and closed by a hinge 45, so that it is possible to operate the ink ribbon 22a and inspect the inside. There is.

Next, the configuration of the electronic circuit formed on the circuit board 120 will be explained with reference to FIG. 6. As described above, the encoder 39 is composed of the encoder disk 34, the LED 36, the photo sensor 37, etc., and outputs a pulse signal corresponding to the movement vJm of the handy copy main body 1, that is, a movement amount detection signal.

The displacement vJ amount detection signal output from the encoder 39 is sent to the control section 51, the timing signal generation section 52, and the speed detection section 53. The speed detection section 53 is connected to the encoder 3
When the moving speed of the handy copy machine main body 1 exceeds a set value based on the output signal 9, this state is detected and the speed warning LED 10 in the LED section 50 is turned on. The control unit 51 also includes the power/read/print selector switch 4.
, operation keys 5a, 5b, clear key 6, and 11 degree adjustment volume 7, etc., and a group of switches 54 provide operation signals, and a temperature sensor 55 that detects the temperature of the thermal head 21 provides a temperature detection signal. Furthermore,
Although not shown, the control unit 51 includes an internal power supply voltage detector. Then, the control unit 51 controls the power LED 8 and the memory LED in the LED unit 50 according to the input signal.
9 and other parts, and also gives an operation command to the timing signal generating section 52 when the reading mode or print mode is designated by the power supply/reading/printing switch 4. The timing signal generating section 52 generates a COD exposure timing signal of a constant period according to a command from the control section 51, and also generates a predetermined number of read timing signals a, serial/parallel, in synchronization with the movement detection signal from the encoder 39. Various timing signals such as conversion signal b and clock pulse C are generated.

The CCD1 optical timing signal output from the timing signal generating section 52 is transmitted to the one-dimensional image sensor 15.
The read timing signal a is sent to the A/D converter 57, the serial/parallel conversion signal is sent to the serial/parallel converter 58, the clock pulse C is sent to the address counter 61,
each will be sent. The above-mentioned -dimensional image sensor 15 is
The counter light is read from the original B in synchronization with the COD exposure timing signal, and outputted to the A/D converter 57 via the amplifier 56. This A/D! The conversion unit 57 converts the input signal into a black and white binary signal using the reading timing signal a, and outputs the signal to the serial/parallel conversion unit 58. The serial 5/parallel converter 58 converts the input signal into a parallel signal, for example every 8 bits, using a serial/parallel conversion signal, and sends the input signal to the image data memory 60 via the data selector 59.
Output to. Further, the data selector 59 has a data line connected to the control section 51, and one of the serial/parallel conversion section 58 and the tl[IK1 section 51 is selected by the select signal d from the control section 51. The target address (row and column address) of the image data memory 60 is indicated by the address counter 61 and designated via the address selector 62. Further, the read address of the image data memory 60 is given by the control section 51 via the address selector 62. This address selector 62 selects till! Select signal e from 211 section 51
In the reading mode, the address counter 61 side is selected, and in the print mode, the control section 51 is selected and the address of the image data memory 60 is specified.

When the reading of the document is completed and the mode is switched to the print mode, the control section 51 controls the encoder 3.
Image and other data memory 60 according to the movement detection signal from 9
The stored data are sequentially read out via the data selector 59. When the control unit 51 reads out the image data from the data memory 60, it sets the energization time based on the head temperature from the temperature sensor 55, the detection data from the power supply voltage detector, and the value of the density adjustment volume 7. It is output to the thermal head drive circuit 64 as print data. The thermal head drive circuit 64 drives the thermal head 21 in synchronization with a timing signal from the timing signal generation section 52 when print data is sent from the control section 51 .

Next, the operation of the above embodiment will be explained. When reading information such as characters and images recorded on a document, first, the reading width for the document is set by manually operating the sliding bodies 46a and 46b. In this case, since the pointer 47 moves along with the movement of the sliding bodies 46a and 46b, the document reading width can be checked from the scale of the scale section 48. Next, the power supply
Switch the read/print switch 4 from the "power off" position to the "read" position. When the power/read/print selector switch 4 is switched to the ``reader'' position, the power is turned on and each circuit section becomes operational. Also, at this time, the control unit 51 lights up the power LED 8 in the LED unit 50 to indicate that ff1l is turned on. In this state, the user presses the head part H as shown in FIG. 2(b).
The reading section 2 formed at A is brought into contact with the desired reading surface of the document B, and the handy copy machine main body 1 is moved forward toward the operation key 5a while pressing the operation keys 5a and 5b. At this time, the projected light from the light a11 is irradiated onto the original IS surface through the reading window 12 provided on the slope portion 1a, and the reflected light is incident on the one-dimensional image sensor 15 via the light guide 13 and lens 14. At this time, the document reading width in the reading window 12 becomes the width set by the printing plates 46a and 46b as described above.

On the other hand, as the handy copy machine main body 1 moves, the rubber rollers 25a and 25b rotate in contact with the original IB surface, and the rotation is transmitted to the gear 28 via the gears 26 and 27. As the gear 28 rotates, the encoder disk 34
rotates at a speed proportional to the moving speed of the handy copy machine main body 1. Due to this rotation of the encoder disk 34,
Photo sensor 37 from LED 36 through slit 35
The light sent to the photo sensor 37 is controlled intermittently, and a pulse signal is output from the photosensor 37.

The pulse signal output from the photo sensor 37 becomes the output of the encoder 39 in FIG. It will be done. The timing signal generating section 52 always generates a CCD exposure timing signal of a constant period and supplies it to the -dimensional image sensor 15.

Further, the timing signal generation section 52 generates a read timing signal a and a serial/parallel conversion signal S according to the movement amount detection signal from the encoder 39, and sends them to the A/D conversion section 57 and the serial/parallel conversion section 58, respectively. Output. Further, the timing signal generator 52 generates a clock pulse C in synchronization with the serial/parallel conversion signal S, and outputs a clock pulse C to the address counter 61 and the address selector 62.
Output to.

Thus, the above-mentioned -dimensional image sensor 15 outputs a signal corresponding to the reflected light from the original mB surface, that is, an image signal, from the timing signal generating section 52 in synchronization with the above-mentioned CCD exposure timing signal. The output signal of this -dimensional image sensor 15 is amplified by an amplifier 56 and sent to an A/D converter 57 . This A/D converter 57 includes an amplifier 56
The image signal sent via the timing signal generator 52 is converted into a serial digital signal in synchronization with the read timing signal a from the timing signal generator 52, and is output to the serial/parallel converter 58. This serial/parallel converter 58 converts the serial input signal into parallel image data, for example, every 8 bits in synchronization with the serial/parallel conversion signal sent from the timing signal generator 52, and converts the serial input signal into parallel image data every 8 bits. Output to one. These five data selectors are set to III Ia when reading mode is specified.
It is switched to the serial/parallel converter 58 side by the select d from the section 51. Therefore, the above serial/
The image data output from the parallel converter 58 is sent to the image data memory 60 via the data selector 59. The address of the image data memory 60 is specified via the address selector 62, but at this time the address selector 62 is switched to the address counter 61 side by the select signal e from the control section 51. Therefore,
The address of the image data memory 60 is specified by the count output of the address counter 61. The address counter 61 sequentially increments the digit address by "+11" by the clock pulse C from the timing signal generation section 52, and specifies the address of the image data memory 60.
When a row's worth of image data has been incorporated, the timing signal generation is stopped and the samurai state is maintained until the next movement amount detection signal is sent from the three encoders. Thereafter, similar operations are repeated, and image data of the specified width read from the original B through the reading window 12 is sequentially written into the image data memory 60.

Next, the operation when printing out image data read from document B as described above will be explained.

When printing out image data, switch the power/read/print changeover switch 4 to the print position.

By switching the power supply/read/print selector switch 4, the print mode is entered, and the control section 51 receives the select signal d.
, e, the data selector 59 and address selector 6
2 to the control section 51 side. In this state, the user
As shown in the figure, the printing part 3 in the head part HA is brought into contact with the printing paper A, and the Handico and the main body 1 are moved in the direction of the arrow X shown in the figure while pressing the vJ author key 5a5b. As the handy copy machine main body 1 moves, the rubber rollers 2Sa and 25b rotate, and the rotation is transmitted to the gear 28 via the gears 26 and 27. As the gear 28 rotates, the encoder disk 34 rotates, and a movement detection signal is extracted from the photo sensor 37 in accordance with the movement speed of the main body 1 in the same manner as in the reading described above.

Further, the rotation of the gear 28 is transmitted to the constant speed feed roller 23 via the one-way clutch 33, and further the rotation of the gear 29.
0 to the take-up roll 24. As a result, the constant speed feed roller 23 and the take-up roll 24 rotate, and the ink ribbon roll 22 passes through the stepped slit 43, the heat generating part 21a of the thermal head 21, and the ink ribbon guide window 42, and then passes through the shaft 31 and the ink ribbon guide. 44, ink ribbon 22a guided by constant speed feed roller 23
Wind up. In this case, the continuous feed roller 23 is moved in accordance with the movement of the handy copy machine body 1 so as not to generate a relative speed between the printing MA and the ink ribbon 22a as the handy copy machine body 1 moves. Rotate.

On the other hand, the movement amount detection signal output from the photosensor 37 is sent to the control section 51, the timing signal generation section 52, and the speed detection section 53 as an output signal of the encoder 39, as described above. The timing signal generation section 52 includes:
A print timing signal is output to the thermal head drive circuit 64 in accordance with the movement amount detection signal sent from the encoder 39. Further, the υl1i1 unit 51 sequentially specifies the row and digit addresses of the image data memory 60 in accordance with the movement amount detection signals from the three encoders, and selects the image data stored in the image data memory 60 via the data selector 59. and read it. Furthermore, the control unit 51 controls the humidity sensor 5
Head temperature from 5, voltage detection signal of power supply voltage detector,
The energization time for the thermal head 21 is set based on the adjustment value of the density adjustment volume 7, etc., and the image data memory 60
The image data read from the thermal head drive circuit 64
Output to. This thermal head drive circuit 64 is
The thermal head 21 is driven according to the control data from the l111 section 51 and the timing signal from the timing signal generation section 52. By driving this thermal head 21, the image O data is transferred to the printing paper A via the ink ribbon 22a.
heat transferred onto the top. In this case, the handy copy machine body 1
As the ink ribbon 22a moves, the unused portion of the ink ribbon 22a is fed out from the ink ribbon roll 22, and the used portion printed by the thermal head 21 is sequentially wound up by the ink ribbon take-up roll 24. By moving the handy copying body 1 as described above, the image data stored in the image data memory 60 is sequentially printed onto the printing paper A.

[Effect of R-light] As described in detail above, according to the present invention, in the image data reading device which has at least a one-dimensional scanning function in the housing and reads external image data through the image information reading window, the above-mentioned image I''I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I!I! Initial body was designed so that the above reading window could be blocked by this sliding body.
By simply moving the sliding body on the instep and closing off the parts that do not need to be read, the information reading width can be arbitrarily set and only the desired image information can be captured.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view showing the external structure, FIG. 2 <8) is a cross-sectional view showing the internal structure of FIG. 1, and FIG. A sectional view taken along the line ■-■ in Figure (a), Figure 3 is a perspective view showing the main internal components, Figure 4 is a perspective view showing the external configuration of the reading section, and Figure 5 is the reading window. FIG. 6 is a perspective view showing the structure of the sliding body attached to the part, and FIG. 6 is a block diagram showing the structure of the electronic circuit. 1... Handy copy machine body, 2... Reading section, 3...
...Print section, 4...Power/read/print selector switch, 5a, 5b...Operation key, 6...Clear key, 7...'m degree adjustment volume, 8...Power supply LE
D, 9...Memory LED, 10...Speed warning LED
, 11... Light source, 12... Reading window, 13... Light guide, 14... Lens, 15... -dimensional image sensor, 16... Support body, 17... Inner frame, 18...
Electronic component mounting section, 19... Battery storage section, 20...
・Circuit board, 21... Thermal head, 22... Ink ribbon roll, 23... Continuous feed roller, 24...
...Ink ribbon roll 1α reroll, 25a 125b
...Rubber roller, 26-30...Gear, 32...
Notch, 33... One-way clutch, 34... Encoder disk, 35... Slit, 36... LED
, 37... Photo sensor, 38... Through hole, 39...
- Encoder, 41... Print window, 42... Ink ribbon guide window, 43... Slit, 44... Ink ribbon guide, 45... Hinge, 46a, 4
6b...Sliding body, 47...Pointer, 48...Scale section, 51...Control section, 52...Timing signal generation section, 53...Speed detection section, 54...Switch group ,5
5...Temperature sensor, 56...Amplifier, 57...A
/D conversion unit, 58... serial 7/parallel conversion unit,
59... Data selector, 60... Image data memory, 61... Address counter, 62... Address selector, 64... Thermal head drive circuit. Applicant's agent Patent attorney Takehiko Suzue (b) Figure 2 (a) Figure 4 Figure 5

Claims (1)

[Claims] An image data reading means provided in the housing and having at least one-dimensional scanning function, an image information reading window formed in the housing, and image information inputted from outside the housing through the image information reading window into the image data. means for supplying the image to the reading means; and the housing is capable of closing the image reading window, and
An image data reading device comprising: a sliding body slidably provided in the scanning direction of the image data reading means.