JPS62272657A - Digital copying machine - Google Patents

Abstract

PURPOSE:To enhance the mobility by reading a sheet like original document by passing therethrough and reading an original incapable of being passed therethrough by a manually driven reader. CONSTITUTION:The title machine has the manually driven reader 1 and a copying machine main body 2, and the copying machine main body 2 has the sheet like original reading part 100, a printing part 200 and a control part 300. The manually driven picture reader 1 is placed at one end of the part of the original desired to be read, and a start button is pressed, thereby, a motor 21 is rotated and the end of a recording paper 201 is bitted with a pressing roller 203. When the picture reader 1 is moved from one end of a reading area to the other area at a constant speed, a roller 14 is rotated, a pulse signal according to the rotation is generated from an encoder 15 and the motor 21 is rotated according to this pulse signal to perform a sub-scanning.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] The present invention is designed to reduce the size of a copying machine and to be able to read and copy images regardless of the shape and size of the original. Regarding digital copying machines.

[Conventional technology]

2. Description of the Related Art Some conventional digital copying machines, for example, store an image signal obtained by reading a document on a platen in a memory, read out the image signal stored in the memory, and drive a printing unit to make a copy.

In addition, as another digital copying machine, JP-A-55-J1
There is one shown in Japanese Patent No. 5773. In this digital copying machine, a reading device is manually driven to move over a document to read the contents of the document, and a printing device is manually driven to move over a recording medium to print based on the read contents.

[Problem that the invention seeks to solve]

However, according to conventional digital copying machines, the former uses a platen on which the original is placed, making it large and difficult to carry. It was difficult to copy the manuscript. Furthermore, in the latter case, the printing operation must be performed manually, which is disadvantageous in that the operation is cumbersome.

[Failure to solve the problem]

The present invention has been made in view of the above, and aims to reduce the size of the document while making it possible to read it regardless of the type of document, and to eliminate the troublesome printing operation.
・A digital copying machine that can read original documents through the inside, while allowing a hand-driven reader to read originals that cannot be passed through the inside, and prints the image information read in this way on a common printing section inside. is provided to J.

〔Example〕

Hereinafter, a digital copying machine according to the present invention will be explained in detail.

FIG. 1 shows an embodiment of the present invention, which includes a hand-driven image reading device 1 that reads an image of a document 5 while manually moving (sub-scanning) the surface of the document to be copied, and a cable connected to this device 1. 3 (connector 3a,). The copying machine main body 2 has a printing section 200 that selects image information obtained by reading a sheet-like original 20 and image information output from the hand-driven image reading device 1 and reproduces the image on a recording sheet 201.

FIG. 2 shows the configuration of the hand-driven image reading device 1, which includes an illumination light source 11 such as an LED that illuminates the document reading surface, and a SELFOC lens 12 that forms an image of the reading surface at a predetermined position.
, an image sensor 13 such as a CCD that converts the optical image provided through the SELFOC lens 12 into an electrical signal, a roller 14 that rolls on the document surface, and a pulse signal that generates a pulse signal in response to the rotation of the roller 14. rotary encoder 15
, a belt 16 that transmits the rotational force of the roller 14 to the encoder 15 , a housing 17 that houses the above-mentioned components, and a belt that is provided under the SELFOC lens 12 on the bottom of the housing 17 to close the opening and enter the inside of the housing 17 . It is composed of a transparent plate 18 that prevents the intrusion of dust and the like. It is also possible to incorporate a memory for storing image information read by the image sensor 13, or to attach a removable memory card, if necessary.

FIG. 3 shows the configuration of the copying machine main body 2, which has a function of copying an original read by a hand-driven image reading device or a sheet-like original, and is composed of an original reading section 100 and a printing section 200.

As shown in FIG. 4, in the document reading section 100, a platen on which a document is placed is connected to a glass 101, and the document is pressed against the surface of the glass 101! An original fg pressing roller 102 for general feeding, a light source 103 that irradiates light onto the reading surface of the document, and a long image sensor 1 that receives light from the image on the reading surface and converts it into electricity.
04, a SELFOC lens 105 that forms an image on the image sensor surface of the reading surface, and a guide 106 that guides the document 20 passing through the platen glass 101.

Further, as shown in FIG. 5, the printing unit 200 includes a thermal head 202 that performs thermal printing on the fed recording paper 201.
It is composed of a pressing roller 203 that presses the recording paper 201 against the thermal heel t'' 202, and a guide 204 that guides the recorded recording paper.

3 to 5, the pressure rollers 102 and 20
3 is rotationally driven by a stepping motor 21.

The motor 21 and each pressure roller are connected to each other by the pressure roller 10.
Pulley 107 attached to each rotating shaft of 2 and 203
and 205 and a pulley 2 attached to the rotating shaft of the motor 21.
This is done by passing the healds 23 and 24 between the two. Due to this drive, the pressure rollers 102 and 203 rotate at the same speed and at the same timing.

In the following configuration, a sheet of original 1 is placed in the copying machine main body.
The case where 01 is inserted, read, and recorded on the recording paper 201 will be explained. In this case, since the hand-driven image reading device 1 is not required, the connection by the cable 3 may be removed, or the reading operation may not be performed while the cable 3 is connected.

In FIG. 6, a sheet-like original 101 is pressed onto a pressing roller 1
02 and the platen glass 101, and a recording paper (thermal paper) is inserted so that its leading edge touches the contact area between the pressure roller 203 and the thermal head 202. In this state, by pressing the start button provided on the copying machine main body 2, the motor 21
rotates, and the thermal head 202 and light source 10
Power is supplied to 3. As the motor 21 rotates, the pressure rollers 102 and 203 rotate, and the original 10 is rotated.
1 and the leading ends of the recording paper 201 are bitten by the pressure rollers 102 and 203. The motor 21 is set to rotate for a certain period of time, for example, to the extent that the original 101 and the recording paper 201 are bitten by about three fins.

At the same time as the rotation of the motor 21 stops, the image of the original 101 is read by the image sensor 104 in units of, for example, 8 bits.

Image information is read out every 8 bits from the image sensor 104 and supplied to the thermal head 202 . When the document 101 is A4 size, main scanning is performed over the length of 210 mm, and 210 mm is sequentially read every 8 bits.

When the main scan of 210 mm is completed, the motor 21 rotates again, feeds out the original 101 and the recording paper 201 by one line interval, and then stops. After this sub-scanning is performed, main scanning is performed again in the same manner as described above. Hereafter, in the same way, A4
Main scanning and sub-scanning are sequentially repeated until the vertical length of 297 mm is reached.

Next, in the case of copying thick wood or the like, the hand-driven image reading device 1 is used to read the copy.

As shown in FIG. 1, the hand-driven image reading device 1 and the copying machine main body 2 are connected by a cable 3, and only the recording paper 201 is set in the copying machine main body 2 in the same manner as described above.

Then, as shown in FIG. 1, the hand-driven image reading device 1 is held in the hand and positioned at one end of the portion of the document 5 that is desired to be read. By pressing the start button in this state, the motor 21 rotates, and the leading edge of the recording paper 201 is pushed onto the pressure roller 20.
Caught in 3.

Here, when the image reading device 1 is moved from one end of the reading area to the other end at a constant speed, the roller 4 rotates, and the encoder 15 generates a pulse signal corresponding to this rotation. The motor 21 rotates in response to this pulse signal, and sub-scanning is performed.

Therefore, the sub-scanning and main scanning of the printing section 200 of the copying machine main body 2 are performed in synchronization with the movement of the image reading device 1, and the image of the original document 5 is reproduced.

By using the hand-driven image reading device 1 in this manner, it is possible to copy thick or heavy wood, or even three-dimensional objects. Moreover, since the entire device is compact, it can be carried anywhere and its uses can be expanded.

FIG. 7 shows the hand-driven reading device 1 and the copying machine main body 2 described above, and the copying machine main body 2 has a sheet-like original reading section 100, a printing section 200, and a control section 300.

When reading a sheet-like original, the control unit 300 controls the synchronous operation of the sheet-like original reading unit 100 and the printing unit 200, and when the hand-driven reading device 1 manually reads the original,
The printing operation of the printing section 200 is controlled based on the position signal of the internal rotary encoder 15 (FIG. 2).

FIG. 8 shows another embodiment of the present invention, which differs from FIG. 1 in that image reading data can be transmitted to a remote location using a modem. In order to realize this, modems (acoustic couplers) 6 and 7 are provided in the hand-driven image reading device 1 and the copying machine main body 2, and a transmission line 8 (for example, a telephone line, etc.) is interposed between them. .

In the above configuration, the operation will be explained with reference to the time chart of FIG. 9. Image information is transmitted with the hand-driven image reading device 1 acting as the transmitting side and the copying machine main body 2 acting as the receiving side. In the image reading device 1, when the start button is pressed, the model 6 is enabled. By moving the image reading device 1, the encoder 15 generates a pulse signal as a line change signal, and this signal is modulated by the modem 6 into a predetermined modulation signal and sent to the modem 7. The modem 7 demodulates the signal from the modem 6 and uses it as an on signal for the motor 21. Every time this motor-on signal is received, the motor 21 rotates the pressure roller 203 by a certain amount. Further, the reading device 1 outputs image information read by the image sensor 13 to the modem 6 following the line change signal. Modem 6 modulates the image information and transmits it to modem 7 as a transmission carrier.

On the other hand, the modem 7 separates and demodulates the transmission carrier transmitted from the modem 6 into a line change signal and image information. The rotation of the motor 21 is controlled by the received line change signal, and the thermal head 202 is driven by the received image information. Note that the operation of the printing unit 200 is as described above, so a description thereof will be omitted.

In the above description, thermal paper is used as the recording paper, but plain paper and an ink donor film may also be used. In this case, it is necessary to provide a mechanism for driving the ink donor film.

Further, in the copying machine main body 2, the two pressure rollers are driven by a single motor, but a dedicated motor may be provided for each. Furthermore, the copying magnification etc. can be changed by changing the ratio between the reading pixel density and the writing pixel density.

[Effects of the Invention] As explained above, according to the digital copying machine of the present invention, sheet-like originals are recorded on thermal paper etc. in synchronization with the feeding speed, and other originals are recorded on thermal paper etc. Since the image is read by a hand-driven image reading device and a copy is made based on the image information, the device can be made smaller and can read and copy originals of arbitrary shapes and sizes. Furthermore, since image information can be transmitted to a remote location, copies can be made simply by carrying a hand-driven image reading device, increasing mobility.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
3 is a perspective view showing the details of the copying machine main body 2 shown in FIG. 1, and FIG. 4 is a front view showing the document reading section 100 of the copying machine main body 2. , FIG. 5 is a perspective view showing the printing unit 200 of the copying machine main body 2, FIG. 6 is a timing chart showing the operation of the copying machine main body 2, and FIG. 7 is a block diagram of the first embodiment of the present invention. FIG. 8 is a perspective view showing another embodiment of the present invention, and FIG. 9 is a timing chart showing the operation of the embodiment of FIG. Explanation of symbols 1 - - Hand-driven image reading device 2 - - Copying machine main body 3 - Cable 11.103 ----
--Light source 12.105--Selfoc lens 13.104--Image sensor 14-
--------One roller 15'---m-Encoder 21--Motor 102.203---One pressure roller 202----Thermal head patent applicant Fuji Xerox Co., Ltd. agent Patent attorney Taira 1) Tadao Figure 1 Figure 3 Figure 2 Figure 6 Figure 7 Figure 8

Claims (2)

[Claims] (1) An internal document reading section that reads a sheet-like document passing through the interior, an external document reading section that manually moves over a document placed outside and reads the document, and the internal document reading section or the external document reading section. an internal printing section that prints based on internal image information or external image information of the document reading section; and a control section that causes the internal printing section to print the external image information when the external image information is input from the external document reading section. A digital copying machine characterized by being equipped with. (2) The digital copying machine according to claim 1, wherein the external document reading section provides the external image information to the internal printing section via remote communication means.