JPS61212162A - Input/output device - Google Patents

Abstract

PURPOSE:To omit the unnecessary load applied to a motor which transports heads and to prevent unnecessary power consumption by releasing and pressing both of a shuttle type reading head and a shuttle type printing head from and to corresponding forms selectively when both heads are transported in the breadthwise direction of the form. CONSTITUTION:A shuttle type thermal head 24 is attached to a shuttle type reading head 22, and a driving gear 32, gears 30 and 31, an eccentric cam 28, and a cam follower 27 transport both heads in the breadthwise direction of the form. A disc 33a of an encoder 33 is attached to a shaft 29, and the encoder 33 detects the extent of rotation of the shaft 29 and output the detection signal to a CPU 60. Thus, the position to be read by a reading part 20 and the position to be printed by a printing part 24a are detected when heads 22 and 24 are transported. An eccentric cam 42, a switching member 40, a worm gear 46, a gear 44, and a motor 45 constitute the selecting means which releases and presses heads 22 and 24 from and to corresponding forms selectively. The CPU 60 controls the selecting means on a basis of the detection signal.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention includes a reading head that reads image information written on paper, and a print head that prints the image information read by the reading head etc. on the paper. This relates to input/output devices.

[Prior Art] Various input/output devices have been proposed in the past for this type of input/output device, but the applicant of the present application has proposed
No. 620 proposes the input/output device.

The input/output device includes a shuttle-type print head, a shuttle-type reading head, a transport means for integrally transporting both the print head and the reading head, and a device for reading information when the two heads are transported. It has a detection means for detecting the position and the position to be printed. Then, when both heads are moved together by the paper transport means and the detection means detects the position to be read and the position to be printed, the shuttle-type reading head sequentially reads the image information recorded on the paper. The shuttle-type print head sequentially prints the read image information on paper.

[Problems to be Solved by the Invention] However, in the input/output device, the shuttle-type reading head sequentially prints the read image information on a sheet of paper, and the shuttle-type print head sequentially prints the read image information. Both heads are transported integrally while always being in pressure contact with the paper to be printed. Therefore, its sliding resistance becomes extremely large.

Therefore, a large load is placed on the motor that transports both shuttle-type heads, and the power required for it is also large. However, in this input/output device, the shuttle-type reading head and the shuttle-type print head do not perform reading and printing operations simultaneously, but perform the reading and printing operations selectively. Therefore, moving the shuttle-type reading head and shuttle-type print head in unison while always being in pressure contact with the corresponding paper places an unnecessary load on the motor that moves the shuttle-type heads, and also consumes unnecessary power. This means that you are consuming.

[Object of the Invention] The present invention has been made to solve the problems of the prior art described above, and it is possible to reduce unnecessary power consumption by eliminating unnecessary loads on the motors that transport both shuttle-type heads. The purpose is to provide an excellent input/output device that prevents

[Means for Solving the Problems] In order to achieve this objective, in the present invention, the reading section that reads the image information written on the paper has a reading resolution set in advance to read the image information. The shuttle is arranged across the paper width at a pitch larger than the pitch of A mold reading head and a printing unit that prints the image information read by the shuttle type reading head etc. by pressing it against the paper are printed at a pitch larger than the preset printing density pitch for printing the image information. a shuttle-type print head disposed across the width of the paper; a transport means for integrally transporting the shuttle-type reading head and the shuttle-type print head in the width direction of the paper; and the shuttle-type reading head and shuttle-type printing. When the head is transferred, the reading unit and the printing unit are provided with a detection means for detecting a position to be read and a position to be printed at the reading resolution and printing density, and the shuttle type reading head and the shuttle type print head are connected to each other. A selection means is provided for selectively releasing and pressing the corresponding paper into contact with each other.

[Operation] The input/output device having the above configuration includes a shuttle-type reading head in which an inclusion of a certain thickness fixed near the reading section presses against the paper surface to read image information on the paper; When the shuttle-type print head that prints image information by pressing against the paper is transported integrally in the width direction of the paper, the shuttle-type reading head and the shuttle-type print head are selectively selected from the corresponding paper. Release and pressure contact. This eliminates unnecessary loads on the motors that transport both shuttle heads, and prevents unnecessary power consumption.

[Example] Hereinafter, a first example embodying the input/output device of the present invention will be described.
This will be explained with reference to FIGS. 6 to 6.

In FIG. 1, left and right frames 1a and 1b are erected upward. The left and right frames 1a.

A paper holding plate 3 that holds a paper 2 on which image information 2a to be read is recorded is attached to 1b. Note that, as shown in FIG. 2, the paper holding plate 3 is separated into three parts, and there is no paper holding plate 3 near the reading section 20, which will be described later. Two paper feed rollers 4 and 5 are arranged below the paper holding plate 3 for transporting the paper 2 from the front to the rear of this input/output device, and are driven by a roller drive mechanism 63 shown in FIG. Paper feed rollers 4 and 5 are rotated. A cover member 6 is arranged above the paper holding plate 3 to cover the reading section 20 from above. The cover member 6 is rotatably supported around a shaft 41 installed in the left and right frames 1a and 1b, and covers the reading section 20, or
Expose upward. The cover member 6 has the paper 2
A paper feed roller 7.8 for transporting the paper is rotatably mounted. When the cover member 6 covers the reading section 20, the paper feed roller 7
The paper feed roller 8 comes into pressure contact with the paper feed roller 5. Therefore, when the cover member 6 covers the reading section 20 and the paper feed roller 4.5 is rotated by the roller drive mechanism, the paper 2 is transported without sagging. A paper guide portion 9 is attached to the cover member 6 to support the paper 2 from above and span the width of the paper. A spring 10 is interposed between the paper guide section 9 and the cover member 6, and the spring 10 urges the paper guide section 9 downward.

The shuttle-type reading head 22 having the reading section 20 has a shaft 2 installed between the left and right frames 1a and 1b.
3 passes through it, and its reading head 22 is slidable along its axis 23 in its axial direction. A shuttle-type thermal head 24 constituting a shuttle-type print head is screwed onto the rear side of the shuttle-type reading head 22 via a heat sink 25 .

A support plate 26 on which a cam floor 27 (described later) is installed is fixed to the lower part of the reading head 22. The support plate 26 is provided with a projection 26a, and a spring 26b is stretched between the projection 26a and the right frame 1a. The spring 26b biases the reading head 22 toward the right frame 1a.

A shaft 29 is rotatably attached to the right frame 1a and is equipped with an eccentric cam 28 that is always engaged with the cam floor 27 by the biasing force of the spring 26b. A first gear 30 that rotates integrally with the shaft 29 is attached to the shaft 29 . The first gear 30 is
It is meshed with a second gear 31, which will be described later, and the second
The gear 31 is fixed to the motor shaft of a drive motor 32 for moving the reading head 22 in the paper width direction of the paper 2. The drive motor 32 is connected to a central processing unit (hereinafter referred to as CPU) 60 via a motor drive circuit 67.

When the drive motor 32 is rotated under the control of the CPU 60, the motor shaft rotates integrally with the second gear 31. Since the second gear 31 rotates the first gear 30, the first gear 30 rotates integrally with the shaft 29. When the shaft 29 and the eccentric cam 28 rotate integrally, the cam floor 27 is engaged with the eccentric cam 28 by the biasing force of the spring 26b.
follows the rotation of the eccentric cam 28. Therefore, the reading head 22 reciprocates in the paper width direction.

Since the shuttle type thermal head 24 is attached to the shuttle type reading head 22, the drive motor 3
2. 1st. The second gears 30, 31, the eccentric cam 28, and the cam floor 27 constitute a transport means for transporting both heads in the paper width direction.

A disc 33a of an encoder 33 is attached to the shaft 29, and the disc 33a rotates integrally with the two shafts. A large number of slits are bored in the disk 33a, and the encoder 33 is a well-known light emitting element and light receiving element (not shown).

It is composed of a disk 33a. Then, the encoder 33 detects the amount of rotation of the shaft 29 and
The detection signal is output to 60 (see FIG. 3). Thereby, the encoder 33 is connected to the shuttle read head 2.
2 and the shuttle-type thermal head 24 are transferred, the reading section 20 and the printing section 24a, which will be described later, constitute a detection means for detecting the position to be read and the position to be printed at the reading resolution and printing density, which will be described later. do.

Further, when a detection signal is output from the encoder 33 to the CPLJ 60, the CPU 60 can detect the speed of the reading head 22 and the thermal head 24 based on the detection signal.

At a position close to the thermal head 24, a platen 35 is arranged to load printing paper from the roll paper RO arranged at the rear. The platen 35 is rotatably installed between a pair of third frames 37 provided inside the left and right frames 1a and 1b. The frame 37 is rotatable around a shaft 38 installed between the left and right frames 1a and lb. A spring 39 for biasing the third frame 37 forward is stretched between the third frame 37 and the right frame 1a. As a result, the bent portion 37a formed at the upper part of the third frame 37 always engages with the eccentric cam 42, which will be described later.

The eccentric cam 42 is connected to a gear 44, which will be described later, via a shaft 43. The gear 44 is connected to the eccentric cam 4.
It meshes with a worm gear 46 connected to the motor shaft of a motor 45 that rotates the motor 2. And the motor 45
is connected to the CPIJ 60 via a drive circuit 61 (see FIG. 3), and the CPU 60 controls the motor 45 thereof.

When the motor 45 is driven and the elliptical portion of the eccentric cam 42 engages with the bent portion 37a, the third frame 37 rotates clockwise against the biasing force of the spring 39. However, the platen 35 is spaced apart from the thermal head 24. As a result, the O mounted on the platen 35
- The printing paper RO is separated from the thermal head 24.

Further, when the short circular portion of the eccentric cam 42 engages with the bent portion 37a, the third frame 37
The platen 35 is rotated counterclockwise by the biasing force 9, and the platen 35 is pressed against the thermal head 24 via the printing paper of the roll paper RO. Also, when the intermediate portion between the short circular portion and the long circular portion of the eccentric cam 42 engages with the bent portion 37a,
The platen 35 is pressed against the thermal head 24 via the roll paper RO.

The paper guide section 9 is located near the eccentric cam 42.
A switching member 40 is disposed for pushing upward. The switching member 40 is shaped like a letter 1, and one arm thereof is provided with a bent part 40a that is engaged with the eccentric cam 42, and the other arm part is provided with a bent part 40a so as to be able to come into contact with the paper guide part 9. A protrusion 40b is provided on. The switching member 40 is rotatably mounted around the shaft 41. When the elliptical portion of the eccentric cam 42 engages with the bent portion 40a, the switching member 40 rotates around the shaft 41,
The projection 40b pushes the paper guide portion 9 upward against the biasing force of the spring 10.

Further, when the short circular part of the eccentric cam 42 engages with the bent part 40a, the switching member 40 rotates around the shaft 41, and the protrusion 40b does not push up the paper guide part 9. is pressed against an inclusion 21, which will be described later, with the paper 2 interposed therebetween. Also, when the intermediate portion between the short circular portion and the long circular portion of the eccentric cam 42 engages with the bent portion 40a, the protrusion 40
b does not push up the paper guide section 9, and the paper guide section 9 presses against the inclusion 21 with the paper 2 interposed therebetween. Therefore, the eccentric cam 42. Switching member 40. The worm gear 46, gear 44 and motor 45 are connected to the shuttle type read head 22.
and a selection means for selectively releasing and pressing the shuttle-type thermal head 24 and the corresponding paper into contact with each other.

The roll paper RO placed at the rear of this device is connected to the CPtJ 60 via a paper feed mechanism 64 (see FIG. 3), and the paper feed mechanism 64 is attached to the platen 35 by rotating the platen 35. It is controlled by the CPLJ 60 to feed the printed roll paper RO.

Incidentally, a perforation 3a is formed at the rear of the paper holding plate 3 so that the printing paper of the roll paper RO passes through, and printing is performed on the printing paper of the roll paper RO in accordance with the aspect described later. Thereafter, the printing paper passes through the perforation 3a and is delivered onto the paper holding plate 3.

Next, the shuttle type reading head 22 will be explained based on FIG. 3. The shuttle-type read head 22 includes
n light receiving elements P1 to pn and 50 light emitting elements L11
~L15. ..., Ln1-1-n5 and their 50 light emitting elements L11-L15. ..., 1ni to 1-n5 to Sn reading points 811 to S15 .・
. . , 50 light-emitting side fibers 711 to T15. transmitting to Sn1 to Sn5. ...Tn1 to Tn5 and 50
reading points S11 to S15. ..., 50 light-receiving side fibers R11-R15, ..., Rn1-R that transmit reflected light from 3n1-Sn5 to n light-receiving elements P1-pn
n5, n amplifiers A1-80 that amplify the outputs from the n light receiving elements P1 to pn, and the n amplifiers A1-
The output value from 80 is compared with a certain threshold value vth, and CF!
It is provided with n comparators C1 to Qn that output to U60. Each of the light emitting elements 111 to ln5 is connected to a light emitting element drive circuit 62, and the light emitting element drive circuit 62 is controlled by the CPU 60. The light emitting element drive circuit 62 selects one light emitting element LrN (+ is an integer from 1 to 5) from a light emitting element group Ln (n represents an integer from 1 to n in this case) consisting of five light emitting elements. is selected, and the selected light emitting element 1-ni is caused to emit light with an appropriate amount of light.

The CPU 60 is connected to a read-only memory (hereinafter referred to as ROM) 65 and a read/write memory (hereinafter referred to as RAM) 66. The ROM 65 stores various programs and data tables for controlling this input/output device. Further, the RAM 66 stores the signals output from the comparators C1 to On. That is,
The RAM 66 stores image information 2a on the paper 2.

The CPU 60 controls the light emitting element drive circuit 62,
The light emitting element drive circuit 62 selects the light emitting element lni and causes it to emit light with an appropriate amount of light. The light emitted from the light emitting element lni illuminates the reading point Sni via the corresponding light emitting fiber Tni. The reflected light from the reading point 3ni enters the corresponding light receiving element pn via the corresponding light receiving fiber Rni. The light receiving element Pn is
An output corresponding to the amount of received light is output to the amplifier An. That is, if the reading point 3ni is an intermediate color part close to black on the paper 2, the output of the light receiving element pn is small, and if it is an intermediate color part close to white, the output of the light receiving element Pn is large.

To the amplifier 〇 linearly amplifies the output from the light receiving element pn and outputs it to the comparator Cn. The comparator Cn compares the output value from ○ to the amplifier with a certain threshold ■th, and if the output value is larger than the threshold vth, outputs a high-level signal to the CPU 60, and the output value is smaller than the threshold vth. In this case, a low level signal is output to CPtJ60. That is, if the reading point 3i is an intermediate color part close to black on the paper 2, the comparator An outputs a low level signal, and if it is an intermediate color part close to white, it outputs a high level signal. Thereby, the CPU 60 can read the image information 2a on the paper surface.

The reading head 22 having the above-mentioned configuration is moved in the paper width direction and reads one line of the paper width using a shuttle reading method which will be described later. This shuttle reading system has the advantage that the reading speed is faster than that of a serial type reading system, and that the apparatus can be constructed at a lower cost than a line type reading system. Furthermore, in the configuration of the reading head 22 described above, the number of light receiving elements Pn, amplifiers An, and comparators Cn is greater than the number of light emitting elements L.
Since the number is smaller than ni, this reading head 22 has the advantage that it can be manufactured inexpensively and compactly.

The portions of the light-emitting fiber Tni and the light-receiving fiber Rni that face the paper 2 are adjacent to each other as shown in FIG. 4, and the optical fibers have a constant aperture angle α due to their materials. . Therefore, the irradiation range Tα and the light receiving range Rα of the optical fiber are set by the diameter r of the optical fiber, the opening angle α, and the clearance C between the end of the optical fiber and the paper 2. The reading point 3ni is the overlapping range of the irradiation range Tα of the light-emitting fiber Tni and the light-receiving range Rα of the light-receiving fiber Rni. In this case, the reading point 3ni is approximately shown as a circle, as shown in FIG. 5 [B]. The diameter of this reading point 3ni therefore depends on the clearance C for this reading head 22. Therefore, the inclusion 21 (see FIG. 1), which is fixed near the reading section 20 and has a constant thickness C, sets the diameter of the reading point 3ni. However, this is actually the opposite; the diameter of this reading point Sni matches the pitch 1/N of the reading resolution, as shown in FIG. 5 [0], so the image information 2a on the paper 2 is read. The pitch 1/N of the reading resolution for this purpose is set in advance, and the thickness C of the inclusion 21 is determined based on this setting.

Therefore, the clearance C set by the thickness of the inclusion 21 has an important meaning, and the paper 2 is securely sandwiched between the paper guide part 9 and the inclusion 21, and the paper 2 is pressed against the inclusion 21. There must be.

The reading section 20, which is constituted by the ends of the light-emitting fiber Tni and the light-receiving fiber Rni facing the paper 2, is arranged in the width direction of the paper as shown in FIG. The pitch P between adjacent reading sections 20 is set by the following equation.

P-a /N-1/x N a >Number of reading points that face each other when one reading unit moves in the axial direction 1/N: Diameter of reading point (N: reading resolution @ degree) x: 1
The number of light-receiving fibers connected to each light-receiving element.Therefore, this shuttle-type reading head 22 is transported in the paper width direction by the transport means, and when the encoder 33 detects the position to be read, this reading head 22 A special shuttle reading method is used to read one line of image information on the paper surface shown in FIG. Please refer to Application No. 59-254793.

The shuttle type thermal head 24 has a structure shown in FIG. 5 [A].
As shown in , the printing sections 24a that print by pressing against the printing paper of the roll paper RO are arranged at a pitch P equal to the pitch between the reading sections 20 described above in the paper width direction. The diameter of this printed portion 24a matches the diameter 1/N. As a result, this shuttle type thermal head 24
The printing method corresponds to the reading method of the shuttle-type reading head 22. Thereby, the encoder 33 can simultaneously perform position detection for reading and position detection for printing.

A switch 80 is connected to the CPIJ 60, as shown in FIG. 3, and the switch 80 allows the input/output device to be used as a read-only device, a print-only device, or a copy device that performs both reading and printing at the same time. Choose whether to use it.

Next, the operation of this input/output device is shown in Fig. 6 [A] and [B].
This will be explained according to the flowchart shown in .

Based on the signal from switch 80, CPU 60 can determine whether this input/output device is to be used as a read-only device, a print-only device, or a copy device, and this determination is performed in steps ST1 and 5T13.

In step ST1, it is determined whether printing is to be performed. If it is determined in step STI that no printing is to be performed, this input/output vt location is regarded as a read-only device, and step ST2 is executed.

In step ST2, the motor 45 is controlled so that the elliptical portion of the eccentric cam 42 engages with the bent portion 37a.

As a result, the platen 35 loaded with the printing paper from the roll paper RO is released from the shuttle-type reading head 24.

In step ST3, the image information data stored in the RAM 66 is cleared. Thereby, RAM
66 becomes capable of storing image information data 2a on paper 2.

In step ST4, the CPU 60 inputs necessary torque data from a torque data table 65a, which will be described later, so that the motor 32 is driven at a constant speed. The torque data table is created based on experimental results and stored in the ROM 65. The data table shows that when only the thermal head 24 is in pressure contact with the printing paper, when only the reading head 22 is in pressure contact with the paper 2, and when the thermal head 24 and the reading head 22 are in pressure contact with the corresponding paper. There are data tables 65a, 65b, and 65c for three cases.

In this case, the torque required when the thermal head 24 is released from the platen 35 on which the printing paper is mounted is smaller than when both heads 22, 24 are in pressure contact with the corresponding paper.

In step ST5, the CPU 60 outputs the torque data to the motor drive circuit 67, and the motor 32
Both heads 22 and 24 are transferred in the paper width direction.

In step ST6, the CPU 60 encodes the encoder 3
3, the transfer speed of both heads 22 and 24 is recognized. Then, in step ST7, the CPU 6
0 remains until the transfer speed becomes constant.

In step ST7, when the transfer speed becomes constant, the CPU 60 controls the light emitting element drive circuit 62 based on the signal from the encoder 33 so that the light emitting elements 1-n are sequentially selected and emitted light. The method for determining the order in which light emitting elements 1-n emit light is disclosed in Japanese Patent Application No. 59-13662.
0@, and according to that method, it is possible to read one line. Then, in step ST9, the signal from the comparator Cn is stored in the RAM 66,
Image information data on the paper surface is stored.

In step 5T10, the CPU 60 determines whether reading for one line has been completed. CPLJ6
If the CPU 60 determines that reading of one line has not yet been completed, the CPU 60 repeats steps ST8 and ST9. C
When the PU 60 determines that reading for one line has been completed, the roller drive mechanism 63 is controlled in step ST11 so that the paper 2 is fed by one line.

In step ST12, the CPtJ60 determines whether reading of paper 2 has been completed. If the reading has not been completed, the CPU 60 proceeds to step ST8.9.1.
0. Repeat steps 11 and 12.

Then, when it is determined that the reading of paper 2 has been completed, the process returns to the start.

When it is determined in step STI that printing is to be performed, the CPU 60 determines in step 5T13 whether or not reading is to be performed.

If it is determined in step 5T13 that reading is not performed, this input/output device is regarded as a printing-only device,
Step 5T14 is executed.

In step 5T14, the motor 45 is controlled so that the elliptical portion of the eccentric cam 42 engages with the bent portion 40a. As a result, the paper guide portion 9 is released from the inclusion 21, so that the paper 2 is not pressed against the inclusion 21.

In step 5T15, it is determined whether or not image information data is stored in the RAM 66. If it is not stored, there is no image information data to be printed, and the process returns to the start.

If the image information data for printing is stored,
In step 5T16, the CPIJ 60 inputs necessary torque data into the torque data table 6 stored in the ROM 65 so that the motor 32 is driven at a constant speed.
Input from 5b. In this case, the paper 2 is
The torque required for this is limited to the fact that the head 22.2 is sandwiched between the head 22.
Compared to the case where the paper sheets 4 and 4 are each pressed against the corresponding paper, the number of paper sheets is reduced.

In step STI 7, the CPU 60 outputs the torque data to the motor drive circuit 67, and the motor 32 transports both heads 22, 24 in the paper width direction.

In step 5T18, the CPtJ60 inputs a signal from the encoder 33. Thereby, the CPU 60 can recognize the moving speeds of both heads 22 and 24. Thereby, in step 5T19, the CPU 60 waits until the moving speed becomes constant.

In step 5T20, the image information data stored in the RAM 66 is output to the thermal head 24 based on the signal from the encoder 33. Thermal head 2
The printing method on the roll paper RO in No. 4 is the same as the reading method of the reading head 22.

In step 5T21, the CPU 60 determines whether printing for one line has been completed.

If the CPU 60 determines that printing for one line has not been completed, the CPU 60 repeats step 5T20. C
When the PtJ60 determines that reading for one line has been completed, in step 5T22, the roll paper RO is
The paper feed mechanism 64 is controlled so that the paper is fed by a line.

In step 5T23, CPLJ60 selects the roll paper R.
Determine whether printing to O is completed.

If printing has not been completed, the CPU 60 returns to step 5T.
20.Repeat 21.22 and 23. Then, when it is determined that printing on the roll paper RO has been completed, the process returns to the start.

When it is determined in step ST1 that printing is to be performed, the CPU 60 determines in step 5T13 whether or not reading is to be performed.

If it is determined in step 5T13 that reading is to be performed, this input/output device is regarded as a copying device, and step 5T24 is executed.

In step 5T24, the motor 45 is controlled so that the elliptical portion of the eccentric cam 42 does not engage with either of the bent portions 37a, 40a.

In step 5T25, the image information data stored in the RAM 66 is cleared. As a result, R.A.
M66 can store image information data 2a on paper 2.

In step 5T26, the CPU 60 inputs necessary torque data from the torque data table 65c so that the motor 32 is driven at a constant speed. in this case,
Read head 22. Since the thermal heads 24 are in pressure contact with the respective sheets of paper, the torque required for this is large.

In step 5T27, the CPU 60 outputs the torque data to the motor drive circuit 67, and the motor 32 moves both heads 22, 24 in the paper width direction.

In step 5T28, the CPU 60 inputs a signal from the encoder 33. Thereby, the CPtJ60 can recognize the moving speeds of both heads 22,24. and,
In step 5T29, the CPU 60 waits until the moving speed becomes constant.

In step 29, when the moving speed becomes constant,
The CPU 60 controls the light emitting element drive circuit 62 based on the signal from the encoder 33 so that the light emitting elements Ln are sequentially selected and emitted light.

The method of light emission matches that of step ST8.

Then, in step 5T30, the signal from the comparator Cn is stored in the RAM 66. And CPtJ6
0 outputs the image information data stored in the RAM 66 in step 5T31 to the thermal head 24, although there is a slight time difference. Therefore, when this input/output v4 location is used as a copying device, the moving speed in the paper width direction is set to be slower than that of a read-only device and a print-only device.

In step 5T33, the CPU 60 determines whether one line has been copied. If the CPU 60 determines that printing for one line has not been completed, the CPU 60 repeats steps 5T30, 31, 32, and 33. C
When the PU 60 determines that one line of copying has been completed, the roller drive mechanism 63 and paper feed mechanism 64 are controlled so that the roll paper RO and paper 2 are fed by one line in step 5T34.

In step 5T35, the CPU 60 determines whether the paper 2 has been copied onto the roll paper RO. If the copying is not completed, the CPU 60 executes step 5T30.3.
1.32.Repeat 33 and 34. Then, when it is determined that the copying has been completed, the process returns to the start.

As described above, in the input/output device of this embodiment, the shuttle type reading head 22 and the shuttle type thermal head 24
If the shuttle-type reading head 22 does not read the image information 2a on the paper 2 when the paper is transported in the paper width direction, the shuttle-type reading head 22 is released from the paper 2, and the shuttle-type thermal head 24 If you do not want to print the image information data read on the RO printing paper,
The shuttle type thermal head 24 is released from the roll paper RO. This eliminates an unnecessary load on the motor 32 that transports both shuttle heads, and prevents unnecessary power consumption. In addition, the shuttle type thermal head 24
In this case, since an anti-wear layer is fixed to the surface of the thermal head 24, wear of the anti-wear layer due to friction is prevented and the life of the thermal head 24 is extended.

[Effect] As described above, in the input/output device of the present invention, when the shuttle-type reading head and the shuttle-type print head are transported in the paper width direction, both heads are selectively released onto the corresponding paper. By press-contacting them, unnecessary load on the motors for transporting both shuttle-type heads is eliminated, and unnecessary power consumption is prevented.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment embodying the present invention;
FIG. 2 is a sectional view of a main part of the embodiment, FIG. 3 is a block diagram of the embodiment, FIG. 4 is a diagram showing the relationship between the light-emitting fiber, the light-receiving fiber, and the reading point, and FIG. Figure [A] is a front view of the thermal head, Figure 5 [B] is a front view of the reading head, Figure 5 [C] is a diagram showing the arrangement of reading points on the paper surface, and Figure 6 [ A] and [B] are flowcharts. In the figure, 22 is a shuttle-type reading head, 24 is a shuttle-type thermal head, 21 is an inclusion, 20 is a reading section, and 24a
28 is a printing unit, 28 is an eccentric cam, 32 is a motor, 33 is an encoder, 42 is an eccentric cam, 40 is a switching plate, 37 is a third frame, and 45 is a motor.

Claims (1)

[Scope of Claims] A reading section for reading image information written on a sheet of paper is arranged across the width of the sheet at a pitch larger than a reading resolution pitch set in advance to read the image information, and , a shuttle-type reading head in which the inclusion of a certain thickness is fixed near the reading part so that the paper and the reading part have a certain clearance; and an image read by the shuttle-type reading head, etc. a shuttle-type print head in which a printing unit that prints information by pressing it against the paper is arranged across the width of the paper at a pitch greater than a preset printing density pitch for printing the image information; a transport means for integrally transporting the shuttle-type reading head and the shuttle-type print head in the paper width direction; and when the shuttle-type reading head and the shuttle-type print head are transported, the reading section and the printing section a detection means for detecting a position to be read and a position to be printed in terms of reading resolution and print density, and a selection means for selectively releasing and pressing the shuttle-type reading head and the shuttle-type print head and the corresponding paper into contact with each other; An input/output device characterized by being provided.