JPH07273944A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To attain an image with high image quality by changing a relative speed between an original and an original read means so as to control a lighting light to a read object part of an original based on the relative speed. CONSTITUTION:Read pictures of an original in the subscanning direction are 3.85, 7.7, and 15.4 lines/mm and a pulse motor is adopted for the drive motor. Suppose that a read time per one line is to be constant in 10ms, the motor speed for a pitch of 3.85 lines/mm is 400PPS(pulse per second). Since the storage time per line changes to 10, 13.3 and 20ms with respect to the speed of 400, 300 and 200PPS, the light quantity for 200PPS is twice the speed of 400PPS when the total light quantity is unchanged. Then a LED light source 2008 is flickered so that the light quantity at each speed is equal to each other. A sensor output obtained thereby is subjected to DMA transfer by a DIPP 2002. The reading is stable and synchronous with a motor interrupt from an SCA 2011. Thus, even when the storage time changes in matching with the motor speed, the light quantity is controlled to be constant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine.

[0002]

2. Description of the Related Art The outline of the function and mechanism of a conventional facsimile machine is discussed in, for example, a series of academic journals published by the Institute of Image Electronics Engineers of Japan.

[0003]

In the above-mentioned prior art, the operator can select a method for reading a bound book, a so-called book-type reading method and a method for reading a sheet-like letter, a so-called sheet-type reading method, and cut them. No consideration has been given to realizing a facsimile machine which records an image on plain paper and installs it on a desk or the like to provide a function suitable for individual use.

On the other hand, in the field of facsimile machines, although a method of reading a document image has been devised so as to obtain an image with higher image quality than before, the image quality is still insufficient.

An object of the present invention is to provide a facsimile apparatus which can obtain a high quality image as compared with the conventional one.

[0006]

The features of the present invention for achieving the above object are as follows.

In a facsimile apparatus in which a document to be read is scanned by the reading means and the read image data is input, (1) means for changing the relative speed between the document and the reading means, and based on the relative speed, A means for controlling the amount of illumination light for irradiating the target portion of the document is provided. Further, (2) movement of the relative position between the original and the image reading means corresponding to the reading scanning line interval is executed in N steps (N is 1 or more) of the pulse motor, and the reading target portion is synchronized with each step. Is irradiated with illumination light for a certain period of time, and the output signal of the image reading means is executed at a timing synchronized with N steps of the pulse motor.

(3) Means for maintaining a predetermined relationship between the drive timing of the drive device for changing the relative positional relationship for scanning the original with the image reading means and the timing of the signal for controlling the operation of the image reading means. Was set up.

[0009]

EXAMPLE An example of the present invention will be described below.

1, FIG. 2 and FIG. 3 show the appearance and cross section of the facsimile apparatus of the present invention. 10 in the figure
Reference numeral 10 denotes a document table on which a document 1005 is set. The document table 10 is of a transmissive type with respect to light, and an optical sensor 1015 is arranged on the opposite side of the document table 1010 from the document to read image data.

Reference numeral 1030 is a cassette for storing recording paper, 1020 is an image recording device for recording an image on the paper, and 1050 is a tray for storing the recorded paper. Reference numeral 1060 denotes an automatic document feeder for reading an image with a sensor while moving a sheet-shaped document.

[Image Reading Unit] Image data to be transmitted to the other party is input using the transmission line. This method is a book-type reading method in which a document is placed on the platen and the sensor is scanned while shifting the relative position between the document and the sensor.

The sensor is installed at a fixed position,
A sheet-type reading method in which the sensor scans by moving one by one.

Although the function of the facsimile is not restricted by these methods, the former book type can directly input a book or the like having an original thickness. Further, the latter sheet type can be combined with an automatic sheet input device that automatically reads a plurality of originals sequentially. As described above, both methods have their own characteristics, but if both methods can be selected and used, the merits for the user are great.
The embodiments shown in FIGS. 1, 2 and 3 are characterized in that both reading methods can be easily supported and the various types of originals can be read by replacing the lid portion of the facsimile.

Further, the sensors used for both types of image reading can be installed independently or can be commonly used. For example, in order to use the sensor in common, the sensor is moved under the platen when reading the book type, and the sensor is fixed to one end of the platen when reading the sheet type.
This can be realized by providing a mechanism for moving the sheet on the above.

An image can be input by providing a document reading method selecting means and executing signal processing for the above-mentioned operation based on the set value of the means. Also, the movement of the sensor to the initial position may be executed based on the selection unit setting value.

[Recording Section] The recording method of the facsimile reception screen or the copy screen is not limited to a specific method, but for example, a thermal recording method, a thermal transfer method,
A toner developing method or the like can be used.

Taking the thermal transfer system as an example, the ink applied on the film is selectively heated by a thermal head and transferred onto plain paper.

If the ink on the film is not transferred in one recording, the ink film can be reciprocated a plurality of times. In particular, it is relatively rare to print (for example, black) on the entire surface of the print screen. Therefore, if the print spots are displaced for each number of times, the decrease in density due to the above multiple prints is reduced and the ink film is consumed. It has the effect of reducing the amount.

By storing such an ink film in the cassettes 1212 and 1213 as shown in FIG. 4, it is possible to improve the ease of handling and protect the ink film 1211. Further, a display function such as the moving direction of the film and the number of times of use can be added.

[Transmission Control Unit] In order to perform facsimile communication via the analog telephone network, a transmission control procedure is executed in accordance with the Group 3 facsimile regulations established by CCITT (International Telegraph and Telephone Consultative Committee) as recommendations. .

In order to input the telephone number of the other party, it is not necessary to provide a telephone function in the main body of the facsimile apparatus, and a telephone having a parent-child telephone connection with this apparatus can be used.

A list of frequently used destination telephone numbers can be carried inside the facsimile or can be carried by an individual.
It can also be stored in a C card or the like.

A control circuit for realizing the above-mentioned facsimile can be constructed as shown in FIG. 3, for example.

The data flow corresponding to the function of the facsimile will be described with reference to the configuration example of the facsimile shown in FIGS. In the figure, reference numeral 1110 is a reading device for inputting image data, and 1120 is a pre-processing device for input image data. Here, FVP (Facsimile Video pro) is used.
cessor).

Reference numeral 1130 is a recording device for image data,
Reference numeral 1140 denotes a dedicated OSI for efficiently performing signal processing of a facsimile, and here, SCA (System con
trolAsic).

Reference numeral 1150 denotes a CPU (Central Processing Un
It) or MPU (Micro Processing Unit) is a control process set, and 1160 is a ROM (Read only me) for storing programs for the processor.
mory).

Reference numerals 1170, 1180, and 1190 are all memories, but they have a functional role and respectively store a line memory LM for storing image data, a buffer memory BM for storing code data, and image data for one page. The page memory RM is distinguished.

Reference numeral 1200 is a modem (modulation / demodulation device), which inputs and outputs signals to and from an external analog line.

Using the facsimile having the above-mentioned structure
The flow of data when executing the operations of (a) immediate transmission, (b) immediate reception, (c) copy, (d) memory accumulation, (e) memory transmission, and (f) memory reception is shown in the figure. Shown with an arrow.
The outline of each case will be described below.

(A) Immediate transmission The image data input by the reading device 1110 is FVP1120.
After performing preprocessing such as shading correction,
Transfer to the line memory LM1170 using the DMA (Direct memory access) method (1).

(2), (3) Next, the data of the current line PL to be encoded and the reference line LL for encoding reference, which are stored in the line memory LM1170, are transferred to the SCA1140, and PL Data for codeword generation is generated based on the pixel arrangement in LL. Here, the algorithm of the encoding process follows the MH (Modified Huffman), MR (Modified Read), or MMR (Modified MR) system of the CCITT recommendation. (4) Above
SCA1140 Based on the generated code word generation data, MPU115
0 creates the codeword and transfers it back to the SCA1140. (5)
In general, code words are bit strings of indefinite length, so SCA1
14 is, when a certain number of bits (for example, 8 bits) are collected,
Write to send / receive buffer memory BM1180. (6) Then, according to the signal output timing of the modem 1200,
Data is transferred from the transmission / reception buffer memory BM1180 to the modem 1200.

(B) Immediate reception The signal input from the external analog line is sent to the model 1200.
After converting to digital signal, send / receive buffer memory 1
Write to 180 (7). The transmission / reception buffer memory 11
80 data is transferred to the SUA1140 (8), code detection data suitable for decoding processing is generated, and then transferred to the MPU1150 (9) while comparing with the already decoded reference line data (2 ), Restore image data, line memory LM
The image data is stored in 1170.

The image data thus obtained can be transferred to the recording device 1130 (11) to create a recorded image.

(C) Copy The image data input by the reading device 1110 is copied to the FVP112.
After preprocessing with 0, it is stored in the line memory LM1170.

Then, the image data is transferred from the line memory LM1170 to the recording device 1130 to create a recorded image.

(D) Memory storage A code word is generated in the same manner as in the above-mentioned immediate transmission, but the generated code word is not output from the modem 1200, and the page memory PM11
Store in 90.

(E) Memory transmission In order to transmit the code word accumulated in the page memory PM1190 to the transmission partner, the code word is converted into an image size suitable for the recording capacity of the partner device, and then the signal is output via the modem 1200.

Therefore, data transfer is performed for image size conversion using the MPU1150 and SCA1140, and (13), (14)
After transferring the generated codeword to the transmission / reception buffer memory BM1180, it is externally output using the modem 1200.

(F) Memory reception The received data in the transmission / reception buffer memory BM1180 is stored in the page memory PM1190 page by page without executing the decoding process of the received data. Then, if necessary, decoding processing and creation of a recorded image are performed.

The software for realizing the above facsimile can be configured as shown in FIG. 11, for example.

An overall control unit that manages the entire system, an individual control unit that manages individual functions, and a task and subtask unit that are managed by the individual control unit and that implement actual signal processing,
The device driver that manages device-specific control functions has a hierarchical structure, and modularization by function facilitates program development such as function modification, addition, and debugging. You can

The execution procedure of these programs can be described by the combination of the current state and the event that will occur from now on. These are managed by the overall control unit,
The lower layer does not depend on the state of the entire system,
Program description can be realized.

When an 8-bit CPU, for example, is used to control the facsimile apparatus, the address space is often an area which can be designated by a 16-bit binary signal.
However, arranging the program memory and image data, code data, etc. in this address space without duplication often brings about restrictions on the program work.

Therefore, by assigning a plurality of numbered memories to the same area of the address space and executing the number designation separately in parallel with the address designation, the memory area to be physically located is allocated. , The address space that can be directly specified by the CPU can be increased.

FIG. 12 shows an example of allocation of memory addresses arranged by using this method.

By associating the memory numbering with the functional division of software, for example, the case of using as an image memory, the case of using as a code memory, etc. are distinguished, and the usage method of the physical memory is clarified. Can be divided into functions.

As described above, using the memory by dividing the functions facilitates the function modification, addition, debugging, etc. in the program creation, and at the same time, for example, when increasing the memory capacity is realized as an optional function. Since the usage method becomes clear corresponding to the function division, there is a great merit in the device configuration.

Notifying the operator of the function or operating state of the facsimile in an easy-to-understand manner is extremely important for smooth operation and prevention of erroneous operation. For this purpose, it is possible to use means for displaying character information or outputting voice information. However, it is also an important item to realize the simplicity of the device configuration. As an example of means for providing sufficient information to the operator, a 7-segment display device as shown in FIG. 13 can be used. In addition to the transmission and reception operations specific to facsimiles, the status of copy output number setting, communication management report output, recording paper jam errors, and other error displays can be uniquely identified by using the display capability of the display means. The operator can be notified of the general facsimile status.

By using such a simple indicator,
It is possible to simplify the device configuration and realize a clear status notification to the operator.

As described above, there are the following methods for inputting the image data of the document.

A book-type reading method in which a document is placed on a document table and the sensor is scanned while shifting the relative position between the document and the sensor.

The sensor is set to a fixed position,
A sheet-type reading method that scans the sensor by moving the sensor surface one by one.

By providing both of the above-mentioned document reading methods, it is possible to have a feature that both reading methods are selected and executed at the same time by using a selection button or the like.

The following operation can be performed by combining the two as shown in FIG. On the book-type reading stand, place the fax document you want to send,
On the sheet type reading stand, for example, transmission destination telephone numbers according to the OCR (optical character reading) system are described and installed at a plurality of places. At this time, a plurality of OCR sheets may be used.

First, from the sheet type reading stand,
Enter at least one destination telephone number. next,
A document on the book-type reading table is scanned by a sensor and encoded and transmitted to the destination. Again, after inputting the destination telephone number from the sheet type reading stand, the facsimile transmission is performed by the book type reading.

By repeating the above procedure, the image data of the original to be transmitted is encoded and transmitted while scanning the sensor, so that the same image data can be transmitted to a plurality of destinations without having a memory for storing the image data inside. Can be sent.

Similarly, in the case of printing and outputting a copy of a document on a book-type reading table over a plurality of sheets, by repeating the sensor scanning a plurality of times, the image data can be executed without being stored in the memory.

It should be noted that the sensor moving direction during a plurality of times of sensor scanning is not limited to one direction, and may be any of the left and right directions in the drawing.

In the facsimile, the size of the image read by the scanner may be enlarged or reduced and then encoded and transmitted. This is because the image size may be converted on the transmission side so as to match the image size that can be recorded on the reception side, by using the result of executing the procedure for confirming the capabilities of the communication partner. The method for enlarging and reducing the image size for this purpose is not limited, and it can be executed by hardware, software, or a combination of both.

FIG. 15 shows an example of means for executing enlargement / reduction of image size. This device is an external interface circuit 1500 that controls signals between a bus external to the device and a bus inside the device, a bus timing control circuit 150 that manages bus control signals, an address on a plane of a two-dimensional image, and a memory device that is one-dimensionally arranged. A multi-dimensional address generation circuit 1502 that performs address conversion, bit configuration per pixel, control of multiple color signals of color signals, etc., buffer memory 1503 for accumulating image data, signal processing using image data in the buffer memory An arithmetic circuit 1504 for executing the above, and a control register 1505 and a program memory 150 for setting the operating conditions of the apparatus from an external CPU.
6, and a control circuit 1507 and the like for orderly executing the operation of each circuit in this device.

This device is bus-coupled to a CPU, an image memory, etc., and sequentially operates according to a register value set by the CPU or an internal program to input / output data in the image memory. Bus access timing operates to avoid contention with other devices capable of bus access. The data accumulated in the internal buffer memory 1503 can be processed by the arithmetic circuit 1504 such as enlargement, reduction, rotation, filtering and level conversion. Further, the internal buffer memory 1503 has a two-sided structure, data input / output is executed using one side, and arithmetic processing is executed using the remaining one side, whereby the execution processing time can be shortened. . FIG. 16 shows the timing of the above operation.

As described above, the conventional DMAC (direct
By providing an internal memory and an arithmetic circuit in the function of a data transfer device known as a memory access controller), high-speed input / output of image data having an address arrangement highly related to the screen configuration and expansion based on the image configuration, A large effect can be realized because the arithmetic processing such as reduction and filtering can be executed at high speed without increasing the load on the CPU and the device configuration can be simplified.

Since a part of the screen is subject to signal processing,
The designation of the source and the destination is set as shown in FIG. 17, and the multidimensional address generation circuit 1502 is used to generate the actual memory address by using the values. In addition, it is possible to significantly reduce the load on the CPU by distinguishing a plurality of color signals of a color image and generating a memory address based on a set value such as a bit width per pixel and horizontal or vertical subsampling. The effect can be realized.

When a multi-valued image in which one pixel is represented by a plurality of bits is subjected to encoding / decoding processing using orthogonal transformation such as discrete cosine transformation, for example, 8
It is necessary to input / output data by using × 8 pixels as a unit of signal processing. The above multi-dimensional address generation circuit 150
2 is a unit of such a two-dimensional image block of 8 × 8 pixels, so that there is no overlap or omission of pixels between blocks, while maintaining the scanning order in blocks, the data transfer is performed at high speed, and the CPU Can be performed sequentially without burdening the

Further, the internal arithmetic circuit 1504 is provided with, for example, a multiplication circuit and an addition circuit suitable for orthogonal transform processing,
By controlling the calculation order, high-speed orthogonal transform processing can be executed.

By configuring the scanner portion of the facsimile so that block type reading can be performed as shown in FIG. 18, the same pixel data can be input while the sensor scanning is performed a plurality of times on the same original document. This is a feature that cannot be realized by the conventional sheet-type reading method.

Since sensor scanning can be performed a plurality of times in this manner, for example, (1) determination of the document size is performed prior to inputting image data used for actual encoded transmission.
(2) The signal processing of the image data in the original determines the areas such as the character portion and the graphic portion. (3) The signal statistical value of the entire image is calculated to perform the signal processing for improving the image quality. Signal processing can be performed.

Further, the sensor moving direction for sensor scanning may be either left or right in the figure, and is not limited to single direction scanning.

As shown in FIGS. 19 and 20, a facsimile whose transmission control is defined assuming an analog telephone network, for example, a device called CCITT group 3 is connected to a digital network to perform data transfer with a digital compatible facsimile. For this reason, it is called TA (terminal adapter). It is necessary to interpose a protocol converter. This is to ensure mutual connectivity in accordance with the regulations for facsimile communication using a digital network.

However, if the function of the digital facsimile corresponding to the other party can be uniquely designated by the telephone number of the digital network, data transfer can be performed by using a unique control procedure without necessarily complying with the communication regulations. In this case, after the destination and the function to be used are designated by a telephone number, the encoded data inside the group 3 facsimile apparatus is directly transmitted as a digital signal without being converted into an analog signal by a modem (modulator / demodulator). Efficient facsimile communication can be realized. Whether to follow the communication regulations or to use a unique control procedure may be selected based on the designation of the destination telephone number.

That is, a list of destination telephone numbers and corresponding functions, for example, whether analog or digital is supported, the maximum value of the communication speed, etc. are stored in the facsimile device or in an IC card held by the operator. By setting in advance, it is possible to omit a part of the procedure for confirming the mutual capability stipulated in the communication regulations for the other party listed in the list, or to use a unique control procedure. Whether or not it can be determined can be determined, and in such a case, the time related to communication control other than image data transfer can be shortened or omitted, so that the total time required for facsimile communication can be shortened.

Also, as signal processing on the receiving side, a plurality of telephone numbers are assigned to one receiver, the capability of the transmitting side device is judged by distinguishing the telephones connected by call, and communication is performed as described above. It suffices to set whether to follow the regulation or move to the original control procedure. It can be said that the condition that determines the signal processing procedure of the CPU is generally a combination condition of the current state and the event occurrence permitted in the current state. This condition determines the signal processing procedure to be executed and the next state.

The operation of such a CPU is described in a programming language as shown in FIG.
The operation of the CPU can be set by storing it in the program memory.

However, there are some problems due to describing the CPU operation in a programming language, for example, the combination condition of the state and the event is not clear, and it takes time for correction, addition, debugging and the like.

When an optional function is newly added, the spillover and selection of reexamined parts becomes large.

In order to avoid these problems and clearly describe the signal processing procedure, a signal processing procedure to be executed by a combination of states and events and a state to be transitioned next are called a state transition table. There is a way to put it together. For example, this state transition is described in the CCITT recommendation that defines the transmission control procedure for communication.

Therefore, by setting the operation of the CPU by the above state transition table as shown in FIG. 21 (b) instead of the description in the programming language, it is possible to manage the state transition of the device and under the controlled condition. The CPU operation can be clearly distinguished. That is, for example, the determination for complying with the communication regulation is performed by using the state transition, and the communication processing procedure peculiar to the apparatus is performed by the program description, so that the correction, addition, debugging, etc. of the function can be easily realized.

However, generally, not all combinations of states and events in such a state transition table exist, and there are many invalid combinations. For this reason, as shown in FIG. 22, the state transition table has blanks in which the contents are not described. Storing such a state transition table in the memory as it is is not always efficient from the viewpoint of memory utilization. Therefore, FIG. 21 (c)
By providing the function to perform data compression or decompression for the state transition table as shown in, the data is stored in the data compressed format when storing it in the memory, and when it is necessary for the CPU operation. By performing the decompression process and holding it in the memory in a format that can be referred to by the CPU, the efficiency of memory storage can be improved.

Here, the state transition table, which has been judged to have little relation to the CPU operation in the current state, is expanded in a format in which the CPU can refer by performing management such as not expanding the compressed data. Therefore, the memory capacity can be reduced.

The data compression and decompression methods and means are not limited, and algorithms such as Huffman coding and arithmetic coding may be used, and the state transition table may be converted into a data structure such as a list structure. You may accumulate it.

When an external data processing device, for example, a personal computer is connected to realize data input / output, a communication function using a line, an operation button of a facsimile device, and a signal processing procedure for the external data input / output, etc. It is necessary to manage these and priorities.
By describing the state transition table, it is possible to easily create, modify, add, and debug a program.

When the image data is coded and stored in the memory of the facsimile apparatus, the code amount generated by the image of one page changes depending on the property of the target image. The number of images that can be stored is a variable value. Therefore, it is effective to display the ratio (or percentage) of the amount of data stored in the memory capacity prepared in advance, as one means for notifying the operator of the facsimile device of the operation state of the image data storage.

In this case, it is not always necessary to display the memory usage rate with an accurate numerical value. For example, the usage rate is represented by a numeral from 1 to 9 by using a one-digit numeral display, or other It is possible to guide the operator's error-free operation by displaying with a predetermined clear symbol.

[Reading Section] A hardware block diagram of FIG. 23 shows a structural example of reading control. The read data read by the reading unit 2001 is DIP which is an image processing LSI.
Line memory 20 by P (Product number HD63084) 2002
(I). Next, the raw data of the line memory 2003 is converted into a soft CODEC (ASIC in the figure) 2004
It is encoded by and stored in the transmission buffer 2005 (ii). Then, every eight bits are transferred to the modem 2006 as transmission data by the modem interrupt (iii).

FIG. 24 is a detailed view of the reading section 2001.
The LED light source 2008 irradiates the reading original and the reflected light is read by the one-dimensional reading sensor 2010 provided on the PRE-AMP substrate 2009. Although a CCD sensor is used as the reading sensor 2010 in the figure, a MOS type sensor or a double-type contact sensor may be used.

A control signal is issued from the system control unit SCA2011 to the reading sensor 2010 via DIPP2002. Further, the SCA2011 generates a lighting control signal for the LED light source 2008 and a drive pulse motor interrupt signal. DIPP2002 and SCA2011 are CPU (HD6418
0) Controlled by 2007.

In FIG. 25, high-quality images are provided in order to prevent blurring and crushing of lowercase letters by applying two-dimensional edge enhancement, suppress moire that occurs during binarization processing of halftone images, and improve reproducibility of characters. The ASIC and IPCE2012 are connected to DIPP2002 to improve the reading characteristics.

There are two methods for reading an original with a one-dimensional line sensor. One is a book reading method in which the original is fixed and the line sensor is moved, and the other is a sheet reading method in which the line sensor is fixed and the original is moved.

In any of the systems, an output variation due to shading is an obstacle to binarizing the read signal. Shading is due to the non-uniformity of the light source and the characteristics of the lens used to form the image on the sensor, the light amount decreases as it approaches the edges of the document, and the white signal level gradually approaches the black level. It is low frequency distortion.

Therefore, it is necessary to correct this distortion, and in the present invention, DIPP2002 is used. Before reading the original, all white data for one line is read and stored from the white reflection plate 2013 in the reading unit 2001 as shown in FIG. With this shading waveform as a reference, a slice level for digitizing the input image data is generated. Then, the data for one line of the original is read, and this data is binarized using the slice level.

First, the initial setting will be described with reference to the mechanical outline diagram of FIG. 27 and the process flow chart of FIG. When the power is turned on, first, it is checked whether the reading unit 2001 is at the sensor home position SHP (position A). In the block reading method, shading correction is performed at this home position SHP (position A). When reading a sheet, the white reflector 2 provided near the sheet reading position
The reading unit 2001 is moved to 013 and then reading is started.

The reading unit 2001 is at the home position S.
When it is at HP (position A), the motor is rotated in the normal direction until the reading unit 2001 moves away from the home position SHP (position A). If the number of pulses exceeds a prescribed pulse, for example, 160 pulses corresponding to 10 mm, which is larger than the operating range of the home position SHP (position A) detection sensor 2014, if there is no deviation from the home position SHP (position A), it is determined that there is something wrong. After leaving the home position SHP (position A) within the specified pulse, the motor is rotated in the reverse direction to return the reading unit 2010 to the home position SHP (position A) and check the light amount of the light source. If the light intensity is sufficient, the initialization is completed and the next command is waited for. If the amount of light is insufficient, abnormal processing is performed, for example, light source abnormal display is performed, and the processing ends.

If the reading unit 2001 is not at the home position SHP (position A), the motor is reversed to return to the home position SHP (position A) and the light amount of the light source is checked. However, if it does not return to the home position SHP (position A) even if the number of pulses exceeds a specified pulse, for example, 4600 pulses corresponding to the length of the read document, abnormal processing is performed and the process ends.

Next, the reading start control will be described. The starting condition is either (1) when the transmission or copy start switch is pressed, (2) when the memory transmission switch is pressed, or (3) when the on-hook recording switch is pressed. The memory transmission of (2) is to write the read image information in the memory and then transmit it.
This is the case of a facsimile equipped with an image recording memory.
Further, (3) is a case where it is applied to an apparatus having a function of reading a facsimile number of a transmission destination written on a sheet and transmitting the read facsimile number.

FIG. 29 is a flow chart at that time. It is detected whether the reading unit 2001 is at the home position SHP (position A), and if the reading unit 2001 is at the home position SHP (position A), shading correction is immediately performed. After checking the light amount, the pulse motor is rotated in the forward direction to start reading from the reading start position B.

FIG. 30 is a flow chart when storing a shading waveform. When the power is turned on (2015), the home position S of the reading unit 2001 described in FIG.
The HP (position A) check routine 2016 is executed. Up to this point, it is the same as the book reading method. Next, it is checked whether there is a document at the document reading position (DET B) at the time of reading the sheet (2017), and if there is no document, the standby state (2018) is entered. If there is a manuscript, it is judged whether it is a stop due to power shutdown (2019), and if there is a power failure, an alarm is displayed (2020). If not, the document is forcibly discharged (2021) and the standby state (2018) is entered.

When the transmitted original enters the sheet reading position, the original detection sensor DET A is turned on (2019), and the original is pulled in until it reaches the original reading position (DET B) (2020-2022).

Next, the reading unit 2001 moves to the shading waveform reading position for sheet reading (202
3 to 2027), and stores the shading waveform (20
30).

FIG. 31 is a flowchart at the time of reading in both the book reading method and the sheet reading method. From the standby (2018) to the sheet reading document detection sensor DET A is turned on as described in FIG. 30, sheet reading is started (2031), the document is pulled in, and the shading waveform is stored (2020 to 2030).
The ED light source 2008 is turned on (2031), and in the case of binary, the peak value of the image signal is made to follow (2030) to make an optimum image determination standard and read, while in the case of halftone, the number of gradations is set. A dither pattern is set as a pseudo gradation pattern according to (2033), the slice level for the image signal is written (2034), and then reading is started.

When reading an original, the reading pitch in the sub-scanning direction is 3.85 lines / mm, 7.7 lines / mm, 15.4 lines / m.
There are 3 types of m, and the standard mode is 3.85 lines / mm. The drive motor used is usually a pulse motor. For example, if the number of steps for reading 3.85 lines / mm is 4 pulses / line, 7.7 lines / mm and 15.4 lines / mm each have 2 pulses. / Line, 1 pulse / line. And to keep the reading time per line constant at 10 ms, the speed of the 3.85 line / mm pulse motor is 400
It becomes PPS (pulse / second).

On the other hand, since the light quantity is constant, 7.7 lines / mm and 1
5.4 lines / mm becomes 200PPS and 100PPS respectively,
The maximum drive torque is required for the motor at 3.85 lines / mm. If the driving torque is sufficient, constant velocity motion is possible from the beginning, but the cost of the motor is high and it is not economical. Therefore, the motor speed is 200PPS, 300PPS, 4
It is common to control the smoothing of reading by gradually accelerating to 00PPS.

The above can be applied to both the book reading method and the sheet reading method because the relative positional relationship between the original and the reading sensor is the same.

FIG. 32 is a diagram showing the relationship between the motor speed and the line memory 2035 for image storage at 3.85 lines / mm. Reading starts at point A and accelerates. Thirty
0PPS is an example when 400PPS driving is started after three lines have been sent due to insufficient driving torque at the reading timing described below. The read data is stored in the line memory 20.
As described with reference to FIG. 23, the data is sequentially written into 35 and transmitted.

If the coding processing speed is slower than the reading speed or the line communication speed is slower than the coding processing speed, the amount of storage in the line memory 2035 increases, but there is a limit to the memory. Pause. In the figure, if 218 lines are accumulated, the motor speed is set to 3
Stop while lowering to 00PPS and 200PPS. When the data transfer progresses and the accumulated amount in the line memory 2035 decreases to 5 lines, the reading is started while accelerating again.

The relationship between the accumulated amount of the line memory 2035 and the reading is the same in the case of 7.7 lines / mm and 15.4 lines / mm, but if the motor acceleration is not necessary, it is immediately read at a predetermined speed. You can start and no smoothing is needed. This example is shown in FIGS. 33 and 34, respectively.

FIGS. 35 and 36 show the relationship between the pulse motor and reading control during smoothing processing. FIG. 35 shows the sequence from constant speed reading to stop.
FIG. 36 shows a sequence in the case of starting reading and resuming after pausing. The storage time per line is shown in the figure. It is 10 ms for 400 PPS and 1 for 300 PPS.
It changes to 3.3ms and 20ms at 200PPS.

Since the storage time per line changes in this way, the light intensity of 200PPS is 400P if the light intensity does not change.
It will be twice as much as PS. Therefore, the LED light source 2008 is made to blink so that the light amount at each pulse motor speed becomes equal. The sensor output thus obtained is DMA-transferred by DIPP2002. Read SCA2011
Since it is synchronized with the pulse motor interrupt from, stable reading can be performed.

As shown in FIG. 35, while the pulse motor is stopped, DMA transfer is not performed, but as shown in FIG. 36, the pulse motor drive is synchronized with the start to perform DMA transfer.

It is possible to use a method in which the accumulation time per line is fixed and the reading is performed irrespective of the motor speed, but it is not preferable because it causes a difference between the moving amount of the original and the reading range, which adversely affects the image quality.

As a method of blinking the LED light source 2008, a method of receiving a lighting control signal from the SCA2011 by the switching transistor Q1 as shown in FIG. 37 can be considered. The resistors RA and RB are limiting resistors.

As described above, even if the accumulation time changes to match the pulse motor speed, the light amount can be controlled to be constant.

Next, the case where the reading size is reduced will be described. For the sake of explanation, the case where the B4 size is converted to the A4 size is taken as an example. In order to convert the B4 size to the A4 size, it is necessary to reduce the line density to 5/6, that is, the image for 6 lines is made to be 5 lines.

FIG. 38 is a sequence diagram of the motor operating speed, the reading timing, and the LED control at the time of 3.85 lines / mm. As shown in the figure, the original lines of 1.5 lines are read from the converted third and fifth lines to prevent deterioration of the image quality. Therefore, the read towing pulse TSCAN is 1. after reading the second line.
The lighting time of the LED light source is 1.5
Reduce to 1 / three and read 3 and 4 lines. Then, the next read timing pulse TSCAN is returned to the original pulse time and the fifth line is read. Size conversion can be realized by repeating this cycle.

FIG. 39 is a sequence diagram at the time of smoothing processing at 3.85 lines / mm. (A) to (e) in the figure show that the control changes depending on the positions of the third line and the fifth line. A dummy interrupt signal is generated so that the interrupt signal can be output even when stopped.
(A) shows the case where the third line spans 300 PPS and 400 PPS, and the light quantity at each pulse motor speed is reduced to 1.5 times from the last cycle of 400 PPS to the stop. In both (d) and (e), the light amount is reduced after the motor is stopped. In (b) and (c), the image quality is deteriorated due to the stop in the middle, so it is necessary to control so as to avoid this case. Since the timing for stopping the pulse motor can be determined in advance by checking the line memory 2035, in (b), the timing at which the light amount is reduced to 1 / 1.5 is the same as in (a). That is, the first line and the second line are controlled. (C) can be optimized by making the timing the same as (d).

FIG. 40 shows another embodiment for eliminating the complexity of the above control, and the third line is to average the third and fourth lines of the original line. The reading time of the third line is doubled while the LED lighting time is halved. Then, after the 4th line, the normal reading time is restored. In this way, it is only necessary to change the TSCAN and the LED lighting time at the same time, and the control is greatly simplified.

In the smoothing process, even if the pulse motor speed changes in the middle, there is no problem because only the accumulation time for two lines and the LED lighting time are changed. However, it is necessary to avoid the third line at 20PPS because it will be stopped and the image quality will deteriorate. Since this monitors the line memory 2035, its control is easy. As described above, according to the present invention, the reading time can be made variable according to the control of the pulse motor, and at the same time, the light amount can be changed so that a constant light amount is always incident on the reading sensor, so that a good image quality is obtained. be able to.

[Recording Unit] Next, the recording unit according to the embodiment of the present invention will be described in detail.

FIG. 41 shows a mechanism of the recording section. The sheet 3010 is picked up by the pickup roller 3007 from the sheet cassette 3001 housed in the main body 3000, passes through the roller 3008, and passes through the recording roller 30.
While moving the paper at 03, the ink of the film 3011 is transferred onto the paper at the print head 3006. The film 3011 is unwound from the film bobbin 3005, wound on the bobbin 3004, and moves at the same speed as the paper.

This recording section is characterized in that it is located below the reading sensor 3009 and the glass 3002 and above the sheet cassette 3001.

[Schematic Sequence of Recording Motor Control] FIG.
Shows a recording mechanism including a detection system for explaining the paper transport mechanism.

Referring to the flow chart below, FIG.
The operation of No. 2 will be described.

The flowchart of FIG. 43 shows a pickup sequence. First, when the pickup start control routine 3032 is executed, the operation mode of a pickup motor (not shown) that drives the pickup roll 3007 in FIG. 42 is set (3014) and the pickup motor is driven. Here, there is a process for starting a timer for detecting a jam and determining that a jam is generated if the process is not completed within a predetermined time.

Thereafter, this control routine enters a state in which the motor is being driven, and a time-out 3018, recording unit abnormality occurrence 3
019 or any one of the above three commands as to whether the paper has been picked up to the paper leading edge detection 3012 in FIG. 42 is waited for. You can move the motor line by line,
The detection is monitored by an interrupt processing routine (not shown) of the motor, and the routine shown in FIG. 43 waits for a command from this interrupt routine or a higher order routine. Here, when a command for the timeout 3018 or the recording unit abnormality occurrence 3019 arrives, the motor is stopped 3020, and a transition is made to a routine 3030 for executing recording unit abnormality processing.

When a command for detecting the leading edge of the paper is received (3021), an initial process for driving the pickup motor for a predetermined number of lines is performed, and the motor drive state 3023 is entered again to wait for the completion. When the completion is issued in the interrupt routine, this time, the recording motor (the motor for driving the recording roller 3003 in FIG. 42; not shown) and the pickup motor are subjected to an initial process for driving a predetermined number of lines, and the motor is being driven. Enter and wait for completion. If the paper leading edge detection is turned off when the motor is completed, it means that the paper is jammed.
27 is issued in the interrupt routine, and when it is received, the motor is stopped 3020 and the abnormality processing 3030 is performed.

FIG. 44 shows the flow of the control routine during printing. When this routine is in the recording state 3033, the motor is driven by the pulse motor interrupt processing routine, the data transfer of print data is executed by the DMA end interrupt processing routine, and the control of the print head is executed by the recording end interrupt processing routine. The control routine is waiting for a command issued from each interrupt processing routine.

If the print head temperature rises abnormally, the recording unit door is opened, or a paper jam occurs, the recording unit abnormality occurrence 3034 command is generated.
In the recording unit abnormality processing 3030, the excitation of the motor and the voltage applied to the print head are turned off, and the DMA transfer ends.

If the detection 3012 in FIG.
When N is changed to OFF, the number of remaining recording lines of one page is set 3038, the ejection process is initialized, the state returns to the recording state 3033 again, and the completion of feeding of the motor is waited.

When the recording for one page is completed 3036,
A predetermined line motor is driven to perform an initial process for the discharge process, and the motor drive state 3040 is entered. If a recording unit abnormality occurs 3041 during driving of the motor, a recording unit abnormality processing 3030 is performed.

[Recording Motor Smoothing Control] The smoothing of the recording motor is basically the same as the processing in the reading unit.

FIG. 45 shows a conceptual diagram of control. When the number of empty lines in the line memory is large, that is, when the number of accumulated lines is small, deceleration is performed, and when the number of empty lines is small, the control is performed with a hysteresis that accelerates when the number of accumulated lines is large.

At this time, the acceleration of the motor speed is, for example, 0.
To 200 PPS (pulse per line), 300 PPS, 40
It is necessary to gradually increase the pressure to 0PPS and reverse the control when decelerating. Generally, these variable speed controls require the setting of several types of parameters such as the one-line length cycle of the motor and the excitation duty of the pulse motor, but this device creates a table and controls them by reading them out. Realized simplification.

As a result, the program is simplified and the maintainability is improved. [Copy] FIG. 46 shows a pickup motor PR for copying.
The motor speed changes of the recording motor HR and the reading motor TR are shown.

When the copy process is instructed, the reading motor is first activated and the sensor home position movement is executed. After that, the pickup motor is activated to pick up the paper, and the point (X
Point), the pickup motor and the recording motor are simultaneously moved to the recording start point Y to start copying.

The copying in this apparatus is characterized in that the reading motor and the recording motor are advanced at the same speed. This reduced the scale of the hardware.

Here, in the copying process involving enlargement and reduction, when the reading and recording motors are advanced at the same speed, the difference between the reading amount and the recording amount becomes large, and there is a problem that the image memory becomes over. Therefore, by performing the copy process while the reading side is paused during the enlargement and the recording side is paused during the reduction, the enlargement and reduction copying functions can be realized without having a large image memory. Since the present invention proceeds while the motor is stopped, reading and recording are performed at a motor speed that can be immediately stopped in this apparatus.

When the reading and recording are completed, the recording paper is ejected and the reading sensor is returned to the original position. This completes the copying process for one sheet.

When the copying speed is further improved, the sensor return time can be omitted by starting the reading from the reverse direction without returning the reading sensor to the original position.

[Multi-Copy] Since the apparatus of the present invention is not a simple copy but a form of facsimile with copy, more versatile copy processing can be executed. One of them is multi-copy. The multi-copy is a multi-copy output copy in which a read original is encoded, once stored in a memory, and then decoded again to record a few copies.

This can be realized by a combination of the document accumulation mode and the proxy received document recording mode. That is, the reminder sound when inputting a plurality of originals desired to be multi-copied can be made common to the original accumulation mode and the immediate transmission mode. In addition, the completion of setting the next document may be determined by pressing the start button while the reminder sound is being generated.

The above can be easily realized by promoting modularization of the processing of the present invention.

[Divisional Recording] Since the recording paper is cut paper in the apparatus of the present invention, there arises a problem that has not occurred with conventional roll paper.

That is, this corresponds to the case where an original exceeding the size that can be recorded on one page is received. This is to let the user set how much the received document size should be recorded as information with respect to the recording paper size. That is, if the user wants to obtain all the information of the received document without omission, all the information that could not be recorded on the first page is sent to the next page and recorded. However, in general, if the sender information and the like are added, the received document exceeds the recording paper size, and most pages are divided into two pages.

Therefore, if the user gives an instruction to allow the loss of the received document within a predetermined range, a mode is prepared in which the portion of the received document of the first page that was not fit on the recording paper is removed.

[Securing Pickup Time During Divided Recording] When document divided recording occurs during reception, since it is cut sheet recording, it takes more time for paper ejection and pickup than roll paper recording. In other words, when a document that is slightly larger than the recording paper is received, if the mode that does not allow information loss is set, after recording one page, eject it, pick up the next page, and record the remaining recording, Recording of the first page of the received document is completed only after discharging the rest. It is essential to reserve these times in the procedure.

FIG. 47 shows a response procedure in the G3 standard mode.

In the case of Case 1, there is no particular problem when the process is completed by the point A which is 1.4 seconds after the first EOM. In the case of Case 2, the process ends by point B, which corresponds to one miss of MPS. If it ends by point C in case 3, it is overlooked twice, and if it does not end by point C in cases 4 and 5, RTP is returned to the third EOM to respond.

FIG. 48 shows the procedure between our machines.
I've kept you waiting with the flag preamble.

[Heat History Control] One of the features of the apparatus of the present invention is that a multi-time ink film can be used.
The multi-time ink film refers to a film that can be transferred several times as compared with a film that cannot be used once when transferred once as in the past.

When using this multi-time film, finer control is required as compared with the conventional print control system.

FIG. 49 shows a timing sequence according to the conventional control method. A, B, C (inversion pulse of A), D
(B inversion pulse) indicates the excitation phase of the pulse motor, and the motor advances by one pulse each time the phase changes. In the printing process, when the one-line recording end interrupt process is activated, a trigger (activation) of the pulse motor, a latch LATCH pulse for transferring the print data to the print head, and a recording start signal are generated. The pulse motor trigger causes the motor to generate a predetermined number of pulses, and if it advances by one line (in the figure, 2
(Pulse / Line) Generate a recording end interrupt. When the recording start signal is generated, each block of the recording head BLOCK1
Printing pulses are sequentially generated at a predetermined duty in the range from to 4, and the transfer process is executed. Simultaneously with the start of recording, a start (recording P / SDMA) for transferring the data of the next line to the shift register DMA for accumulating print data at one time is performed. A bit DMA transfer is executed.

Now, in the print density control here, the print duty, the print head resistance value, the temperature, the time from the previous line recording to the current line recording, etc. are used as parameters.
The recording block length and cycle were decided.

FIG. 50 is a timing chart showing a printing sequence of the thermal history control system of the present invention. The difference from the conventional method is that a recording end interrupt is generated for each block. DMA transfer is performed for each block, the number of black pixel bits in the block is counted at this time, and this parameter can be added to conventional parameters to finely control the duty or the like for each block.

51 and 52, the printing method using the delay timer is characterized in that the pulse motor is started by interrupt processing of the pulse motor, and then the printing is started after a predetermined delay time. It shows the control method.

By using this delay timer, printing can be performed after the pulse motor moves, and image quality deterioration such as sticking can be controlled.

[Reduction of Letter Size] In Japan, A4 size recording paper is used, but in the United States, letter size, which is wider and shorter than A4 size, is used. When A4 size received characters are received on letter size recording paper,
Information loss is predicted. Therefore, if the recording paper is letter size as shown in FIG.
By performing the reduction at the line ratio, it is possible to suppress such information loss.

When this reduction processing is performed, the information at the time of reduction is held by performing a 2-line OR on the reduction target line and the previous line (FIG. 53 (b)). Further, it is difficult to perform this two-line OR processing by software in the recording unit, especially during thermal history control.

For this reason, the 2-line OR processing is performed in the Codec section, and by notifying which position is the reduction target line in the line attribute table, it is possible to promote improvement in throughput and modularization of the program.

[Functional Indication by OCR Sheet] The device of the present invention simplifies the pulse as long as the telephone function is minimized. Therefore, dialing provides a method using an external telephone and a method using a sheet dial using an OCR sheet.

FIG. 54 shows a format paper of a sheet dial. The user can enter the entry area 310 on the sheet.
If characters are entered so as to connect 9 points of 0, it is automatically recognized by a facsimile, dialing, function data is changed, and a designated transmission time is set.

55 and 56 show examples of entry on the OCR sheet, and not only numbers 0 to 9 but also letters A to F and other symbols can be entered.

[Enlargement Processing in Recording Unit] The enlargement processing is realized by writing the same data twice in the recording unit.

FIG. 57 shows the positional relationship when an input original of 1234 dots × 3267 lines (15.4 l / mm in the sub-scanning direction) is enlarged by 141% to A4 size 1728 dots × 4574 lines.

FIG. 58 is a conceptual diagram of processing for executing enlargement. In the main scanning direction, when 5 dots of 1 to 5 are enlarged to 7 bats, 2 and 4 can be enlarged by using the same data twice. Similarly in the sub-scanning direction, if the same line is written twice, enlarged recording is possible.

This process can be applied not only to copying but also to receiving, and is an important function especially for a facsimile for the silver generation.

[0166]

As described above, according to the present invention, it is possible to provide a facsimile apparatus which can obtain a higher quality image than the conventional one.

[Brief description of drawings]

FIG. 1 is a diagram showing an appearance of a facsimile apparatus of the present invention.

FIG. 2 is a diagram showing a cross section of a facsimile apparatus of the present invention.

FIG. 3 is a diagram showing a cross section of a facsimile apparatus of the present invention.

FIG. 4 is a diagram showing a shape of a cassette that stores an ink film.

FIG. 5 is a diagram showing elements constituting a facsimile apparatus and a data flow between these elements.

FIG. 6 is a diagram showing elements constituting a facsimile machine and a data flow between these elements.

FIG. 7 is a diagram showing elements constituting a facsimile machine and a data flow between these elements.

FIG. 8 is a diagram showing elements constituting a facsimile apparatus and a data flow between these elements.

FIG. 9 is a diagram showing elements constituting a facsimile machine and a data flow between these elements.

FIG. 10 is a diagram showing elements constituting a facsimile apparatus and a data flow between these elements.

FIG. 11 is a diagram showing an example of a software configuration of a facsimile device.

FIG. 12 is a diagram showing an example of address arrangement.

FIG. 13 is a diagram showing an example of an internal state display function.

FIG. 14 is a diagram showing an example of use of a sheet type reading system and a book type reading system.

FIG. 15 is a diagram showing an internal configuration example of an image data processing device.

FIG. 16 is a diagram showing a signal processing timing of the image data processing apparatus.

FIG. 17 is a diagram showing a method of designating a source and a destination of a two-dimensional image.

FIG. 18 is a diagram for explaining an application example when reading a book method.

FIG. 19 is a diagram illustrating a connection method with a destination.

FIG. 20 is a diagram illustrating a connection method with a destination.

FIG. 21 is a diagram showing setting of a signal processing procedure of the processor.

FIG. 22 is a diagram for explaining the configuration of a state transition table.

FIG. 23 is a hardware block diagram of read control.

FIG. 24 is a detailed diagram of a reading unit 2001.

FIG. 25 is an application example of FIG. 24.

FIG. 26 is an explanatory diagram of reading a shading waveform.

FIG. 27 is a mechanical schematic diagram.

FIG. 28 is a processing content flowchart.

FIG. 29 is a flowchart at the start of reading.

FIG. 30 is a flowchart for storing a shading waveform.

FIG. 31 is a flowchart at the time of reading by both the block reading method and the sheet reading method.

FIG. 32 is a diagram showing the relationship between the motor speed and the line memory 2035 for image storage at 3.85 lines / mm 2.

FIG. 33 is a diagram showing the relationship between the accumulated amount and reading of the line memory 2035 at the time of 7.7 lines / mm.

FIG. 34 is a diagram showing the relationship between the storage amount and reading of the line memory 2035 at 15.4 lines / mm.

FIG. 35 is a relationship diagram between a pulse motor and reading control during smoothing processing.

FIG. 36 is a relationship diagram between a pulse motor and reading control during smoothing processing.

FIG. 37 is a diagram showing an example of control of an LED light source 2008.

FIG. 38 is a motor operating speed and a reading timing chart at the time of 3.85 lines / mm 2, and a LED control sequence chart.

FIG. 39 is a sequence diagram at the time of smoothing processing at 3.85 lines / mm.

FIG. 40 is another embodiment of the sequence diagram at the time of smoothing processing at 3.85 lines / mm 2.

FIG. 41 is a view showing a mechanical portion of the device of the present invention.

FIG. 42 is a detailed mechanism diagram including a detection system.

FIG. 43 is a flowchart of recording control.

FIG. 44 is a flowchart of recording control.

FIG. 45 is a conceptual diagram of motor smoothing.

FIG. 46 is a smoothing timing chart at the time of copying.

FIG. 47 is a chart illustrating a procedure for pickup processing.

FIG. 48 is a chart illustrating a procedure for a pickup process.

FIG. 49 is a timing chart of printing using heat history control and delay timing recording.

FIG. 50 is a timing chart of printing using heat history control and delay timing recording.

FIG. 51 is a timing chart of printing using heat history control and delay timing recording.

FIG. 52 is a timing chart of printing using heat history control and delay timing recording.

FIG. 53 is a conceptual diagram of a letter size reduction method.

FIG. 54 is a view showing an example of an OCR sheet for sheet dial.

FIG. 55 is a diagram showing an entry example of an OCR sheet for a sheet dial.

FIG. 56 is a diagram showing an entry example of an OCR sheet for sheet dialing.

FIG. 57 is a diagram showing the positional relationship of points during enlargement processing.

FIG. 58 is a conceptual diagram of enlargement processing.

[Explanation of symbols]

2001 ... Reading unit, 2002 ... Image processing LSI, D
IPP, 2003 ... Line memory, 2004 ... ASI
C, 2005 ... Transmit / receive buffer, 2006 ... Modem, 20
07 ... MPU, 2008 ... LED light source, 2009 ... RP
E-AMP substrate, 2010 ... Read sensor, 2011
... SCA, 2013 ... White reflector, 2035 ... Line memory, Q1 ... Switching transistor.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical indication location G06T 1/00 H04N 1/10 1/107 (72) Inventor Yasuyuki Kojima 4026 Kuji Town, Hitachi City, Ibaraki Prefecture Address: Hitachi Research Laboratory, Hitachi, Ltd. (72) Mori Nomura 4026, Kuji Town, Hitachi City, Hitachi, Ibaraki Prefecture: 2626, Hitachi Research Laboratory, Hitachi, Ltd. (72) Shinichi Shinoda 4026, Kuji Town, Hitachi City, Ibaraki Prefecture, Japan Hitachi, Ltd. (72) Inventor, Katsumi Ouchi, 216 Totsuka-cho, Totsuka-ku, Yokohama, Kanagawa, Ltd.Inside the Totsuka Plant, Hitachi, Ltd. (72) Inventor, Hideki Muroya, 216, Totsuka-cho, Totsuka-ku, Yokohama, Kanagawa (72) Inventor, Eizo Ebisi, 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Stock company Hitachi-Totsuka Plant (72) Inventor Tokuwa Takahashi 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Inside the Hitachi Co., Ltd. Totsuka factory (72) Inventor Tomoe Sasayama 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi, Ltd. Inside the Totsuka factory (72) Inventor Hideo Nakazawa 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Inside the Hitachi Co., Ltd. Totsuka factory (72) Inventor Naoki Kinoshita 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi Ltd. Totsuka factory (72) Inventor Yasunori Iwafuji 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Inside the Totsuka Plant, Hitachi Ltd. (72) Inventor Go Kobayashi, 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Within the Totsuka Plant, Hitachi Ltd. (72) Hisashi Matsumoto 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Inside the Totsuka Plant, Hitachi Co., Ltd. (72) Hiroshi Kawamura, 216 Totsuka-cho, Totsuka-ku, Yokohama, Kanagawa (72) Inventor Masaaki Tamaki Kanagawa Hama City Totsuka Totsuka-cho, 216 address Co., Ltd. Hitachi, Ltd. Totsuka in the factory

Claims (5)

[Claims] 1. A facsimile apparatus for scanning a document to be read by a reading unit and inputting read image data, wherein a unit for changing a relative speed between the document and the reading unit, and And a means for controlling the amount of illumination light for irradiating the portion of the document to be read. 2. The facsimile apparatus according to claim 1, wherein the light amount of illumination light applied to the original is controlled based on the relative speed between the original and the reading unit and the timing of a signal output by the reading unit. A facsimile machine, characterized in that it is provided with means for performing. 3. A facsimile apparatus which scans an original document to be read by the reading means and inputs the read image data, wherein the relative position of the original document and the image reading means, which corresponds to the reading scan line interval, is moved. The pulse motor is executed in N steps (N is 1 or more), and at the timing synchronized with each of the steps, the reading target portion is irradiated with illumination light for a certain period of time, and the output signal of the image reading means is changed to N of the pulse motor. A facsimile machine configured to be executed at a timing synchronized with a step. 4. The facsimile apparatus according to claim 1, wherein the means for generating the illumination light is a solid-state light emitting element that electronically emits light. 5. A facsimile apparatus for scanning a document to be read by a reading unit and inputting read image data, wherein a driving device for changing a relative positional relationship for scanning the document by the image reading unit. Drive timing of
A facsimile machine comprising means for maintaining a predetermined relationship with the timing of a signal for controlling the operation of the image reading means.