JP2868673B2 - Input/Output Devices - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THEINVENTION The present invention relates to an input/output device for use in a facsimile or printer.

[0002]

2. Description of the Related Art FIG. 14 shows, for example,
FIG. 1 is an external view showing a conventional input/output device shown in the publication. In the figure, 1 is a substrate, 2 is a thermal head unit,
3 is a thermal head wiring section, 4 is an image sensor section, 5
Reference numerals 5a and 5b denote image sensor wiring portions, and reference numeral 6 denotes a transparent wear-resistant film which covers the thermal head portion 2 through the image sensor wiring portions 5a and 5b.

Next, the operation will be described. Information read from an original or the like by the image sensor unit 4 is recorded by the thermal head unit 2 on the recording paper that comes into contact with it. In this case, as shown in Fig. 15, when reading information, the original 18 is moved over the contact glass 20 by rollers 19, and the surface of the original 18 is illuminated in a slit shape by an illumination lamp 21. The reflected light is then passed through a focusing fiber array 22 to form an image on the image sensor unit 4.

When an image is to be recorded, the recording paper 23
The ink is fed over the thermal head section 2 by rollers 24, and a pulse current is applied to the heating resistor in accordance with the image information to be recorded, thereby recording the image on the recording paper 23. At this time, a heat sink 25 connected to the substrate 1 releases the heat generated in the substrate 1 into the atmosphere.

[0005]

[Problems to be Solved by the Invention] Conventional input/output devices are constructed as described above, and because the document reading section A consisting of the image sensor section 4 and image sensor wiring section 5, and the recording section B consisting of the thermal head section 2 and thermal head wiring section 3 are constructed on the same substrate 1, there are cases in which the recording section B and the reading section A collide with each other, making it practically unusable. In addition, even if the substrate 1 is made transparent and the direction of light irradiation (from the underside of the substrate to the top) is changed, there are problems such as the structure of the image sensor section becoming complicated.

The invention of claim 1 has been made to solve the above problems, and the reading section and the recording section can be integrated so as not to interfere with each other.
Even if the heating resistor is formed on the flat surface of the heating substrate,
The object of the present invention is to obtain an input/output device that can secure a transport path for the above-mentioned .

It is an object of the present invention to provide an input/output device capable of reading information from an original on two perpendicular surfaces and recording the read information on a recording sheet.

An object of the present invention is to provide an input/output device capable of reading information from an original document on approximately the same plane and recording the read information on recording paper.

[0009]

[Means for solving the problem] The input/output device of the invention of claim 1 is provided adjacent to a heating substrate carrying heating resistors arranged in a row, and comprises a drive circuit for driving the heating resistors, a sensor substrate carrying a multi-chip IC consisting of light receiving elements arranged in a row and a drive unit for controlling the light receiving signals, and the sensor substrate is divided into a drive circuit side and a multi-chip IC side which form an even surface relative to the heating substrate, and is bent into an L shape.

The input/output device according to the present invention comprises:
After scanning the document, based on the scanned information,
The document is guided by a guide roller so that the document is recorded on a recording surface perpendicular to the reading surface, or the document is read after recording on the document.

The input/output device according to the present invention comprises:
After scanning the document, based on the scanned information,
The document is guided by a guide roller so as to be substantially flush with the reading surface and to allow recording to be performed on the document or to allow the document to be read after recording on the document.

[0012]

[Function] The input/output device according to the invention of claim 1 is a sensor board on which a driving circuit and a light receiving element are mounted, and is partially L
By folding it into a U-shape, the heating resistor attached to the flat surface of the heating substrate records on the recording paper in a compact manner.
This makes it possible to do this inexpensively using simple blocks .

[0013] In the input/output device of the invention of claim 2 , the information read from the original is recorded on the original on a recording surface perpendicular to the reading surface, or the original is guided by guide rollers so that the original is read after the information is recorded on the original.

The input/output device according to the third aspect of the present invention enables reading of a thick original or recording paper and recording on the recording paper to be carried out on the same plane.

[0015]

[Embodiments] Embodiment 1. One embodiment of the present invention will now be described with reference to the drawings.
In the figure, 101 is a heating substrate on the recording section B side, 121 is a heating resistor, 131 is a drive circuit for driving the heating resistor 121, 141 is a signal processing board, and 151 is a drive circuit 1.
31 is a molding material for protecting the heating resistor 121.
A signal extracting unit that inputs and outputs a signal for driving the
Reference numeral 71 denotes a support base, and 181 denotes a sensor substrate.

FIG. 2 shows the configuration of the reading unit A.
In the figure, 195 is a multi-chip IC for reading an image, which is made up of a light receiving element 201 and a drive unit (not shown) for controlling signals. 211 is an amplifier/signal processing control IC (hereinafter referred to as an amplifier) for controlling output signals, etc., 221 is a molding material for protecting the multi-chip IC 195 including the light receiving element 201 and connection wires, etc., and 231 is a signal extraction unit for inputting and outputting signals for driving the sensor.

[0017] Furthermore, Figure 3 is a side view of an input/output device equipped with the above-mentioned recording unit B and reading unit A, in which 20A is a glass plate, 21A is an illumination lamp as a light source, and 22A is a rod lens array, and the same components as those shown in Figures 1 and 2 are given the same symbols and redundant explanations will be omitted.

Next, the operation will be described. First, the assembly procedure for the input/output device will be described. In Figures 1 and 2, first, a plurality of heating resistors 121 are formed in a desired pattern on an insulating substrate, and then a protective film (not shown) is applied to produce a heating substrate 101. A driving circuit 131 is mounted on this heating substrate 101,
The chip pad of the driving circuit 131 on the heating resistor 121 side and the pattern on the heating substrate 101 are wire-bonded.

After that, the heat generating substrate 101 is placed on the support table 171.
The signal processing board 141 made of a PCB base material is fixed to the signal processing board 141 by using double-sided tape, and the pattern on the signal processing board 141 is wire-bonded to the chip pads of the drive circuit 131. Furthermore, the molding material 151 is attached to the drive circuit 131.
The adhesive is applied onto the wire bonding portion including the wire bonding portion.

On the other hand, on the sensor substrate 181 made of a PCB substrate, a plurality of multi-chip ICs 1 each including a plurality of light receiving elements 201 and a circuit for driving each of the light receiving elements 201 are mounted.
95 is mounted, and the chip pads of the multi-chip IC 195 formed on the side opposite the light receiving element 201 are wire-bonded to the wiring patterns provided on the sensor substrate 181. Next, a molding material 221 is applied onto the wire bonding portion including the multi-chip IC 195.

Next, an amplifier 211 formed of a chip IC is mounted at a specified position on the sensor substrate 181, wire-bonded, and various components such as a signal output section 161, a signal output section 231, and a chip resistor are connected by soldering to the heat generating substrate 101 and the sensor substrate 181, respectively. Next, the heat generating substrate 10 of the support stand 171 is
A sensor board 181 is attached to the surface opposite to the surface to which the signal processing board 141 and the sensor board 182 are attached with double-sided tape.

Next, the glass plate 20A and the heat generating substrate 1 attached to the support base 171 are attached to the resin frame 191 in which the light source 21A and the rod lens array 22A are inserted.
01, a signal processing board 141 and a sensor board 181 are attached. In this way, an input/output device is formed.

On the other hand, in this input/output device, the document 18 is conveyed to the image forming portion on the glass plate 20A by the rollers 19, and the characters and image information of the document are inputted as follows:
The light emitted from the light source 21A is reflected and the reflected light is focused by the rod lens array 22A. Therefore, the focused light is guided to the multi-chip IC 19 on the sensor substrate 181.
The light beams are collected on the light receiving element 201 in the number of 5.

The light receiving element 201 has a photoelectric conversion function, and the timing is limited by the drive circuit of the multi-chip IC 195, and the signals are sequentially sent as serial output electrical signals to an amplifier 211 where they are amplified.

This serial output signal is input from the signal output section 231 to the signal output section 161 of the signal processing board 141, and is then output to the driving circuit 131, where it is converted into a signal by the heating resistor 121.
The recording paper 23 is selectively heated based on the image information.
Record in.

Rollers 19 are provided to adjust the imaging position of the original 18 in the vertical direction and to transport the original 18, and rollers 24 are provided to efficiently transfer Joule heat generated by the heating resistor 121 to the recording paper 23 and to transport the recording paper 23. By integrating the reading section A and the recording section B onto the upper and lower surfaces of the support base 171 in this way, there is no mutual interference between them, and the configuration can be made compact and low cost.

As described above, according to the first embodiment,
For example, the light receiving elements are arranged in a row to receive light information from the document.
A multi-chip consisting of a driver that controls the light receiving signal and
The sensor board is equipped with a chip IC, and the emitters are arranged in a row.
Equipped with a thermal resistor and a drive circuit to drive the heat generating resistor
a heat generating substrate and the sensor substrate;
The support base is supported on the opposite sides.
The reading section of the document and the recording section of the recording paper are placed on the surface of the support table.
They are installed separately on the back so that they do not interfere with each other, and can be read
Acquisition and recording can be performed inexpensively in a compact block.
That is, the reading section and the recording section
It is possible to integrate these two components so that they do not interfere with each other.
This can be achieved with a simple configuration.

[0028] In the above embodiment, the heating resistor 121 is formed on the flat surface (lower surface in Fig. 3) of the heating substrate 101, which is an insulating substrate, but as shown in Fig. 4, the heating resistor 121 may be formed on the end surface (side surface) of the heating substrate 102. In this case, the recording paper 23 can be transported in a perpendicular direction, whereas in the above embodiment, the recording paper 23 is transported on a flat surface.

[0029] In addition, a manufacturing method using, for example, spherical exposure is used as a method for forming the heating resistor 121 on the end face of the heating substrate 102, and a thick film material is used for the heating resistor 121 and protective film (not shown), and since it is a strip-shaped resistor, it is printed by direct drawing.

Since such a thick film material requires a firing process at 800° C. or higher, a ceramic substrate with a glass coating is used as the insulating substrate for forming the heat generating substrate 102.
11 is used to form a pattern on one side.

[0031] Furthermore, by configuring the sensor board 181 as shown in Figure 4, the original 18 is mainly transported flat, but the recording paper 23 can be transported at a right angle, and since the reading section and the recording section are integrated, the transport space can be made small.

As described above, according to the second embodiment,
For example, the light receiving elements are arranged in a row to receive light information from the document.
A multi-chip consisting of a driver that controls the light receiving signal and
The sensor board is equipped with a chip IC, and the emitters are arranged in a row.
Equipped with a thermal resistor and a drive circuit to drive the heat generating resistor
a heating substrate on whose end surface the heating resistor is disposed;
The heat generating substrate and the sensor substrate are disposed on opposite sides of each other.
Since the heater is provided with a support base on the surface of the heater,
By providing the end surface of the heating substrate, the original and the recording paper are
It can be transported in a direction perpendicular to the reading
It is extremely useful for performing recording in a small space.
It has the effect of providing what is effective.

[0033] Example 3. Figure 5 shows an input/output device from each of the above examples, with the support base 171 removed. In this example, the wire bonding of the drive circuit 131 is performed on the heat generating substrate 103, the connection to the signal processing substrate 143 is made by thermocompression bonding of the wire, and the signal output section 162 is constructed of an FPC (flexible printed circuit). Therefore, since the support base 171 is no longer necessary, the configuration can be made even more compact.

As described above, according to the third embodiment,
For example, a row of light receiving elements that receive light information from a document
A multi-chip consisting of a driver that controls the light receiving signal and
A chip IC, a heating resistor arranged in a line, and the heating resistor
A driving circuit for driving the body, and the heating resistor is located on the end surface.
In this way, the heating resistor, the multi-chip IC and
and a mounting plate on which the drive circuit and the drive circuit are mounted on the same surface.
The sensor is equipped with a drive circuit and a light receiving element.
By mounting it on the board, the reading position and recording of the document can be
The conveying path is designed to avoid getting close to the recording position on the paper.
The reading position and the recording position can be secured.
A configuration that prevents the signal processing board from approaching the
This has the effect of simplifying the layers.

[0035] In Example 4, the support base 171 is removed and the heat generating substrate 103 shown in Figure 5 is attached to the side of the resin frame 191 by pasting it with hardened resin.
The heating resistor 121 faces the glass plate 20A, and the original 18 to be read and the recording paper 23 can be conveyed on the same plane.

[0036] In embodiment 5, Fig. 7 shows an embodiment in which the signal processing board 143 shown in Fig. 6 is removed, and the connection between the drive circuit 131 on the heat generating substrate 104 and the signal output section 162 is made directly by thermocompression bonding of wires, thereby enabling a further compact configuration and cost reduction.

8 shows another embodiment of the present invention. In the embodiment shown in FIGS. 1 to 3, the signal processing board 141 and the sensor board 181 are made of the same base material, the heat generating board 105 is made of an insulating board, and the support base 1
72, but here the drive circuit 131 is mounted on a sensor board 182 serving as a mounting plate, preventing the reading position and the recording position where the heating resistor 121 is located from approaching each other.

9, the resin frame 191 is located around the reading position, so the transport path of the recording paper 23 becomes an issue. Therefore, the heat generating substrate 105 is formed on the end surface to ensure the transport path. Here, the signal extraction section 163 is extracted from the end of the sensor substrate 182.

[0039] In the seventh embodiment shown in Fig. 10, the heat generating substrate 106 supported on the support table 173 is formed flat, and in order to secure a transport path for the recording paper 23,
The sensor section and the signal processing section are separated, and the sensor board 183
11 shows the structure of the input/output device after it is mounted on a resin frame 191. Here, the signal output section 164 is connected to the sensor board 18.
The extraction is from the end of 3.

FIG. 12 shows an input/output device system for recording information on the document 18 on the recording paper 23.
It is also possible to read and check the information on the document 3 by performing the reverse operation, and reading and recording are performed on two surfaces perpendicular to each other. Here, reference numeral 241 denotes a guide roller, and 251 denotes a document guide. Arrows indicate the flow of the document 18 and the recording paper 23.

13 shows an input/output device which allows reading and recording on the same plane so that it can be used as a transport path when the original or recording paper is relatively thick and difficult to bend.

[0042]

[Effects of the Invention] As described above, according to the invention of claim 1 , a sensor board is provided adjacent to a heating board on which heating resistors are mounted in a row, and is equipped with a drive circuit for driving the heating resistors, light receiving elements arranged in a row to receive optical information from a document, and a multi-chip IC consisting of a drive section for controlling the light receiving signals. The sensor board is divided into a drive circuit side and a multi-chip IC side which are uniformly spaced from the heating board and bent in an L-shape. Therefore, even if the heating resistors are formed on the flat surface of the heating board, a transport path for recording paper can be secured , and the reading section and the recording
The two parts can be integrated so that they do not interfere with each other.
The present invention is applicable to a case where the heating resistor is formed on the flat surface of the heating substrate.
This has the effect of ensuring a transport path for the recording paper .

[0043] According to the invention of claim 2 , after the original is read, based on the read information, the original is recorded on a recording surface perpendicular to the reading surface, or the original is read after recording on the original, and the guide roller is configured to guide the original so that the original can be read and recorded on the same paper, original or card by a reversible operation on two perpendicular surfaces.

[0044] According to the invention of claim 3 , after the original is read, based on the read information, the original is recorded on in approximately the same plane as the reading surface, or the original is read after recording is performed, and the guide roller is configured to guide the original. This has the effect of enabling the original or recording paper to be read and recorded on the same paper, original or card by a reversible operation in approximately the same plane.

[Brief description of the drawings]

FIG. 1 is an external view showing a recording section of an input/output device according to an embodiment of the invention.

FIG. 2 is an external view showing a reading section of an input/output device according to an embodiment of the invention.

FIG. 3 is a cross-sectional view of an input/output device according to an embodiment of the invention .

FIG. 4 is a cross-sectional view of an input/output device according to one embodiment of the invention .

FIG. 5 is a cross-sectional view showing an input/output device according to another embodiment of the invention .

FIG. 6 is a cross-sectional view showing an input/output device according to still another embodiment of the invention .

FIG. 7 is a cross-sectional view showing an input/output device according to yet another embodiment of the invention .

FIG. 8 is an external view showing a main part of an input/output device according to an embodiment of the present invention .

9 is a cross-sectional view showing the input/output device in FIG. 8.

FIG. 10 is an external view showing a main part of an input/output device according to an embodiment of the present invention.

11 is a cross-sectional view showing the input/output device in FIG.

FIG. 12 is a cross-sectional view showing an input/output device according to an embodiment of the present invention.

FIG. 13 is a cross-sectional view showing an input/output device according to an embodiment of the present invention.

FIG. 14 is an external view showing a conventional input/output device.

FIG. 15 is a conceptual diagram showing a transport mechanism and structure of a conventional input/output device.

[Explanation of symbols]

18 Original 101, 102, 103, 104, 105, 106 Heat generating substrate 121 Heat generating resistor 131 Drive circuit 171, 172, 173 Support base 181, 183 Sensor substrate 182 Sensor substrate (mounting plate) 195 Multi-chip IC 201 Light receiving element 241 Guide roller

Claims (3)

(57) [Claims] [Claim 1] A heat generating substrate having heat generating resistors arranged in a row mounted thereon, and a sensor substrate provided adjacent to the heat generating substrate and having a multi-chip IC mounted thereon, the multi-chip IC being made up of a drive circuit for driving the heat generating resistors, light receiving elements arranged in a row to receive light information from a document, and a drive section for controlling the light receiving signal, the sensor substrate being divided into a drive circuit side and a multi-chip IC side which are uniformly arranged with respect to the heat generating substrate, and an L
An input/output device bent into a U-shape. [Claim 2] An input/output device comprising: a sensor board equipped with a multi-chip IC consisting of light receiving elements arranged in a row to receive optical information from a document and a drive unit to control the light receiving signal; a heating board equipped with heating resistors arranged in a row and a drive circuit to drive the heating resistors, the heating resistors being disposed on an end surface; a support base supporting the heating board and the sensor board on opposite surfaces; and a guide roller for guiding the document so that after the document is read, recording is performed on the document on a recording surface perpendicular to the reading surface based on the read information, or so that the document is read after recording on the document. [Claim 3] An input/output device comprising: a sensor board equipped with a multi-chip IC consisting of light receiving elements arranged in a row to receive optical information from a document and a drive unit to control the light receiving signal; a heating board equipped with heating resistors arranged in a row and a drive circuit to drive the heating resistors, the heating resistors being disposed on an end surface; a support base supporting the heating board and the sensor board on opposite surfaces; and a guide roller for guiding the document so that after the document is read, recording is performed on the document based on the read information, in approximately the same plane as the reading surface, or the document is read after recording on the document.