JPH03209966A - Image reader - Google Patents

Abstract

PURPOSE:To prevent the generation of such trouble as a collision, etc., even in the case of free-running by stopping the movement of a supporting member, based on a designated range. CONSTITUTION:A free-running type handy scanner starts scanning, when a start SW is turned off. In that case, a motor 80 is rotated in order to start a scanning operation. Subsequently, in order to transmit a synchronizing clock 81 obtained from a puls disk to a main body part 1, a synchronizing clock gate 71 is turned on. Whether a scan of a prescribed distance determined in advance is executed or not is discriminated. When the scan of the prescribed distance is not ended, an exposure signal is inputted, and whether the exposure signal is turned on or not is discriminated. That is, the scan is executed until a signal for showing a scan stop request is inputted from the main body part. In the case the scan of the prescribed distance is ended, a read operation is stopped, therefore, the synchronizing clock gate 71 is turned off, and a start signal is turned off. Subsequently, an exposure lamp 32 is turned off, and the motor 80 is turned off, and thereafter, returned.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image reading device, and more particularly to an image reading device in which an optical system and a processing section move relative to an original.

[Background Art] In recent years, there has been a trend in OA equipment being developed from stand-alone types to multifunctional types. One of these complex devices
Image reading devices are particularly important as an input means for creating manuscripts of images and documents.

The image reading device divides the image of the document into fine meshes, converts the image portion to black and the non-image portion to white, and outputs it as a digital signal to an external device. This image reading means includes
In addition to stationary scanners, handheld scanners that are highly portable and can scan a wide range of objects have also been developed.

Furthermore, handheld scanners include manual scanners and scanners that are fixed to a document table. A manual handheld scanner is one in which the user himself/herself moves the document over a desired document to perform a reading operation. A handheld scanner with a fixed document table has an optical system that automatically scans the document by placing the document on the document table and performs a reading operation. Each is used depending on its purpose.

[Problem 8 to be solved by the invention] The conventional handy scanner as described above poses various inconveniences in actual use.

For example, although manual handheld scanners are highly portable, the optical system is moved manually, which tends to cause image distortion in the scanned document image.

In addition, although image distortion is less likely to occur with handheld scanners that have a fixed document table, they are not very portable.
Furthermore, the object to be read must at least be able to be moved onto the document table.

In view of this background, it would be useful if a so-called self-propelled handheld scanner, which integrates a reading section and a processing section and is capable of mechanically scanning a document, be developed. However, although such self-propelled handy scanners are highly portable and can perform highly accurate reading operations, they may cause troubles such as collisions with walls after self-propelled.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an image reading device that does not cause troubles such as collisions even if it is self-propelled.

[Means for Solving the Problems] An image reading device according to the present invention includes: an image forming means including an optical system that forms an image of a document; a processing means that reads and processes the formed document image; Means: While the holding member is placed directly on the original or on the placing surface on which the original is placed, the supporting member is mechanically moved relative to the original, and This is to stop the movement of the support member.

[Operation] In the present invention, the movement of the support member that supports the imaging means and the processing means is stopped based on the specified range of the original image.

[Embodiment] FIGS. 2A to 2D are schematic cross-sectional views showing how various scanner sections are installed in an image reading apparatus according to an embodiment of the present invention. Fig. 2A shows a situation in which a standard type scanner unit is installed, Fig. 2B shows a situation in which a reduced type scanner unit is installed, and Fig. 2C shows a situation in which a reduced type scanner unit is installed. , a situation is shown in which a scanner unit with a fixed document table is installed, and the second D
The figure shows a situation where a self-propelled scanner section is attached.

The standard and reduced type scanners shown in FIGS. 2A and 2B are manual scanners that are moved over the document by the user himself, and the scanners shown in FIGS. 2C and 2D are manual scanners. In type and self-propelled scanners, the scanner section automatically scans the document.

In the figure, a main unit 1 manages the entire handy scanner and includes optical system units (scanner units 6a, 6b, 6
The reflected light from the document outputted from c and 17) is photoelectrically converted, and the digitized image data is transferred to a memory card (
(not shown). In addition, the optical system unit uses the exposure LED array 3 based on the signal sent from the main body.
2a to B2d are turned on to illuminate the original, and the reflected light is sent to the main body 1 through the lenses 34b, 38, 46, and 34c.

The exchange of signals between the main body 1 and the optical system units 6a to 6c117 is considered to be independent of the type of the optical system unit (manual type, self-propelled type, document table fixed type).

FIG. 3 is a schematic perspective view showing the configuration of the manual handheld scanner shown in FIGS. 2A and 2B.

The configuration will be explained with reference to the drawings.

A main body section (processing section) 1 that reads and processes imaged image data, and scanner sections 6a and 6b that scan a document and form a document image are detachably attached to the main body section 1. There is. The main body part 1 has a scanner part 6a or 6b.
A light-receiving window 2 for receiving light input through the scanner section and a connecting connector 3a for electrically connecting to the scanner section are formed on the end surface thereof. In addition, on the top surface of the main body 1,
An operating section 4 is formed to control the operation of this handy scanner. Furthermore, a memory card 5 as an external storage device can be freely inserted into the main body 1.

On the other hand, as the scanner sections, a standard type scanner section 6a and a reduced type scanner section 6b are shown.

Operation parts 9a and 9b are formed on the side surfaces of both scanner parts 6a and 6b, respectively. Reading windows 7a and 7b for reading the original are formed on the side where the original is scanned, respectively.

Further, rollers 8a and 8b, which rotate with scanning, are formed on the scanning surfaces of the scanner sections 6a and 6b, respectively, for scanning documents. These scanner parts 6a and 6b are detachable from the main body part 1, and when attached, are electrically connected via the connector 3a and used as a handy scanner integrally with the main body part 1. .

FIG. 4 is a schematic cross-sectional view showing the internal structure of the standard scanner section and main body section shown in FIG. 2A.

The configuration will be explained below with reference to the drawings.

In the scanner section 6a, an exposure LED array 32a for exposing the original to be read is arranged so as to be able to expose the original through the reading window 7a.

A position confirmation window 30 is provided above the exposure LED array 32H to confirm the position of the document when scanning the document.
is formed. The original image exposed by the LED array 32a passes through the window 36 via the SELFOC lens 34b, and is focused on the CCD 28 of the main body 1. Reading window 7
A roller 8a that rotates as the scanner section 6a scans is installed at the bottom of the window 36, and a connector 3b for electrically connecting the main body section 1 and the scanner section 6a is formed at the bottom of the window 36. A light receiving window 2 and a connecting connector 3a are provided on the side of the main body 1 on which the scanner section 6a is attached.
is formed. Light incident from the scanner section 6a is received by the CCD 28 via the light receiving window 2 and converted into an electrical signal. The connecting connector 3a is connected to the connecting connector 3b of the scanner section 6a, and electrically connects the main body section 1 and the scanner section 6a. A control/processing section 22 is provided inside the main body section 1 to control the reading operation and process the read data, and a control/processing section 22 for controlling the reading operation and processing the read data is provided on the top thereof. Card connector 2 for
4, and a power supply section 2 for supplying power as a reading device.
6 is provided.

Next, the operation of this manual handy scanner will be explained.

First, the scanner section 6a or 6 having an optical system unit
The connection between b and the main body portion 4 is indicated by a set signal.

Then, when the user presses down the start switch (SW) of the operating section 9a or 9b provided on the optical system unit side, the signal is sent to the main body section.

When the main body 1 receives this start signal, an exposure signal for lighting an exposure lamp on the optical system unit is turned ON. This turns on the exposure lamp on the optical system unit, and the reflected light passes through the lens to the main body.
A synchronization signal for synchronization in the sub-scanning direction is also output from the scanner unit side 6a or 6b. When the user moves the handy scanner, this synchronization signal causes the pulse disk 10a connected to the roller 8a or 8b to move in synchronization with the user's movement to the rotary encoder 12.
a and is generated by this detection signal. These signals allow the manual handheld scanner to read the document.

As shown in FIGS. 7 and 8, in the standard scanner section 6a and the reduced scanner section 6b, the document reflected light projected onto the CCD provided in the main body section 1 is
Since they are reversed (mirror images), the order of writing into memory is changed using a mirror image signal that indicates the difference.

FIG. 5 is a schematic perspective view showing the configuration of the self-propelled handy scanner shown in FIG. 2D.

The configuration will be explained with reference to the drawings.

The main body 1 that reads and uses the formed image data is
This is the same as the manual handheld scanner shown in FIG. A scanner section 6 that is detachable from the main body section 1
C is provided with rollers 8C and 8d for self-propelling over the document. Further, an operation section 9c for performing a reading operation is provided on the upper surface of the scanner section 6C. With this configuration, the scanner section 6C, with the main body section 1 mounted thereon, moves on its own over the document and performs a reading operation.

FIG. 6 is a schematic sectional view showing the internal structure of the self-propelled scanner section and main body section shown in FIG. 5.

Since the main body portion 1 is the same as the manual handy scanner shown in FIG. 4, the description here will not be repeated, and only the scanner portion 6C will be described.

In the scanner section 6C, an exposure LED array 32d for exposing the original to be read is arranged so as to be able to expose the original through the reading window 7b.

A position confirmation window BOb is formed above the window 7b for checking the alignment of the document when scanning the document. The original image exposed by the LED array 32d is
The light is reflected by the mirror 33b via the SELFOC lens 34c, passes through the rear window 36b, and is imaged on the CCD 28 of the main body 1. In the scanner section 6c, a roller 8C driven by a motor 11 for self-propelling over a document, and an idle roller 8d to which a pulse disk 1ob is connected are arranged on the lower surface of the roller 8C. A pulse encoder 12b is installed on the pulse disk 10b to detect pulses generated by its rotation.

FIG. 9 is a schematic perspective view showing the structure of the scanner with a fixed document table shown in FIG. 2C.

In the figure, the main body 1 is detachably attached to a stationary type scanner unit 17 fixed to a document table.

An operating section 9d for controlling the reading operation is formed on the upper surface of the scanner section 17.

Next, the operations of a self-propelled handy scanner and a scanner with a fixed document table will be described.

Similar to the manual handy scan, the connection between the optical system unit and the main body is indicated by a set signal.

Then, when the start SW provided on the operation sections 9C and 9d on the optical system unit side is pressed down, a start signal based on the push button 2 is transmitted to the main body section 1.

In a manual handy scanner, a reading operation is performed while the start switch is kept pressed, so a signal indicating that the start switch is pressed is used as it is as a start signal. However, in self-propelled scanners and scanners with a fixed document table, after the user presses down the start SW (a state in which the reading start signal (exposure signal) is output from the main body), the CPU of the optical system unit starts the optical system. Control. Then, when a certain distance is scanned, or when a scan stop signal (exposure signal) is input from the main body, the start switch is set based on the start switch to perform reading (the user can set the start switch at the time of starting reading).
Just turn on W) Send the start signal to the main unit.

When the main body receives this start signal, it turns on a reading start signal to cause the optical system unit to scan. This reading start signal is substituted by an exposure signal transmitted from the main body to the optical system unit. Upon receiving this, the optical system unit lights up the LED arrays 32d and 40 on the optical system unit 3, and the reflected light is outputted to the main body through lenses 34c and 46, and also synchronizes in the sub-scanning direction. It also sends a synchronization signal for synchronization.

At this time, a synchronization signal for the handheld scanner of the self-propelled type and the type with fixed document table is generated by a signal detected by a rotary encoder of the rotation of the motor and pulse disk necessary for driving the optical system. Based on these signals, the self-propelled scanner unit and the scanner unit fixed to the document table can read the original.

As shown in FIG. 7, in the case of the standard scanner shown in FIG. 2A, the light reflected from the document 15 by the lamp 32a is read by the main body 1 through the lens 34b without being reversed.

On the other hand, as shown in FIGS. 8 and 10, in the case of the reduction scanner shown in FIG. 2B and the scanner with fixed document table shown in FIG. 38 and 46 and is read as a mirror image into the main body 4 part 1. Therefore, in this case, the order of writing to the memory card may be changed. Regarding this mirror image processing, patent application No. 1-23646 filed by the present applicant
7 “Image reading device”.

By separating the main body and the scanner in this manner, even in the manual type, the reading width can be made variable by replacing the optical system unit.

Furthermore, the manual hand-held scanner can be converted into a self-propelled type or a fixed type with a document table.

As a result, the scanning width cannot be changed, unlike conventional manual handheld scanners.

■ It is possible to compensate for the drawbacks such as poor legibility due to manual distortion of the original when reading thin characters, etc.

Furthermore, (1) it is possible to solve the problem of poor mobility caused by the fixed document table type, resulting in excellent portability. therefore,
This allows you to respond to different document types5 and situations by simply replacing the optical system unit.
This is a highly flexible scanner.

FIG. 11 is a block diagram showing the electrical configuration of an image reading device according to an embodiment of the present invention.

The configuration and operation will be described below with reference to the drawings.

In response to input from the start switch 64 of the scanner section 6a, the control section 52 issues a command to expose the exposure unit 60 of the scanner section 6a. The exposure unit 60 irradiates the document according to a command from the control section 52 , and the light reflected from the document image 66 is processed by the optical system 58 to form an image on the image sensor 28 of the main body section 1 . The received light is converted into an electrical signal by the image sensor 28 and output to the processing section 50. In the processing section 50, the scanner section 6a
Based on the clock signal output from the synchronization clock 62, the electric signal output from the image sensor 28 is selectively output to the memory section 54 and stored as memory data. The data stored in the memory section 54 is stored in the control section 5.
Data is exchanged with the external memory 5 under the control of 6.

Next, the memory card 5 will be explained.

FIG. 12 is a diagram showing the memory contents of a memory card according to an embodiment of the present invention.

The memory card 5 has a capacity of 128 KB, 256 KB, etc. for boat fishing, and when controlled by an 8-bit CPU, the memory is managed in banks of, for example, 8 KB.

ID required to check the presence or absence of a memory card, etc.
number and the start address/of each of image data 1 to N.
An end address, image data information, and actual image data are stored.

The image data information also includes information on whether or not compression is performed and the compression method other than the start address and end address, and information on whether data is being written.

Writing to the memory card 5 is performed while the start signal is ON and the synchronous clock is being output. Typically, self-propelled and fixed scanners have one
Writing 7 in units of pages is performed on the memory card.

The amount of data in the main scanning direction is determined by the effective pixels of the CCD mounted on the main body, the image processing method (for example, thinning out to 1/2, etc.), and the like. Therefore, the number of scanning lines in the sub-scanning direction can be easily determined based on this amount of data. This scanning line (the number of effective image area lines) is set at the time of scanning, and depending on whether or not this has been sent from the optical system unit to the main body, it can be determined whether writing for one page has been completed. can.

This allows multiple pages of images to be input to the memory card. It should be noted that since it is thought that reading of a standard size is usually performed frequently, the above processing is sufficient. However, when the part of a newspaper article, weekly magazine, etc. that you want to read has an irregular size, it is also possible to change the number of scanning lines (scanning distance) by transmitting data between the main body and the optical system unit.

As described above, writing to the memory card 5 is performed while the start signal is ON and the synchronous clock is being output. At this time, the C8 PU (main unit) writes the image data to the memory data area of the image data N that is currently being written. When writing, the write address is updated, and if it exceeds the maximum address on the memory card (when the memory is full)
The exposure signal (reading request signal) output from the main unit is OF
It becomes F. Upon receiving this signal, the manual handy scanner turns off the exposure lamp and prohibits image reading. That is, the LED indicating that the card can be written to is turned off.

In addition, in a self-propelled handy scanner, when the reading request signal is turned OFF, it is regarded as a stop request and stops on the spot.
Ru. In a scanner with a fixed document table, the scanning operation ends midway and the scanner section is returned.

In this way, when the capacity of the memory card becomes full, the user will be notified of the end of the reading operation. Therefore, the lamp does not turn on and perform an operation that appears to be reading even though it is not reading, improving reliability.

9 In addition, by providing an LED that indicates that the memory card is writable, the user can easily determine whether the memory card is full of data.
Operations such as memory card replacement are easier, and usability is improved.

Furthermore, since the memory card has reached its full capacity,
In order to solve the problem of not being able to perform desired reading, the handy scanner according to the present invention is also capable of displaying the readable distance based on size, resolution, and remaining memory capacity.

Here, the scannable distance is determined by the following formula.

Scannable distance - remaining memory capacity / (size (main scan width) x (
resolution) 2) For example, if the remaining memory is 100 KB and the main scanning width is 10
5mm and the resolution is 8 lines/mm, the scannable distance is -100,000X8(bit)/105(
105 (+82 (bit/mm) - 119 (mm
).

This allows the user to determine whether image data of a desired area can be stored in the currently installed memory card before scanning. Therefore, problems such as failure to store image data after operation can be prevented, and usability is improved.

FIG. 13 is a block diagram showing the internal structure of the main body of a handy scanner according to an embodiment of the present invention.

Referring to the figure, a clock generation circuit 55 uses a synchronization clock 71 as horizontal synchronization and also provides a transfer lock and the like necessary for driving the CCD 54 to the CCD 54. The clock generation circuit 55 is also connected to the CPU 51 and is used as a clock signal generation source.

The CCD 54 has a function of converting optical signals into electrical signals. The A/D converter 56 converts the electrical signal that is the analog output of the CCD 54 into a digital signal. The conversion level is controlled by a signal from CPU51.

The shading correction circuit 57 corrects unevenness in the amount of light in the main scanning direction and variations between bits of the CCD 54, and is given correction timing from the CPU 51.

Comparator 58 compares the output data from selector 59 and the image data after shading correction, and outputs binary data.

The selector 59 selects either the binary threshold given by the CPU 51 or the dither threshold output from the pattern generation circuit 60 based on a signal from the CPU 51 .

The S/P 61 converts the serial data output from the comparator 58 into parallel data.

The FIFO 52 is a RAM that stores image data output from the S/P 61.

The CPU 51 reads the image data written to the P I FO 52 and writes it to a memory card 53 having a RAM.

The CPU 51 also reads data from the memory card 53 in order to check the remaining capacity of the memory card 53. The CPU 51 also controls the exposure lamp 32 and the synchronization clock 7 for the optical system 2 unit.
Control and communication are performed via signal lines for the first class.

FIG. 14 is a diagram showing the contents of the memory map of the CPU 51.

Various controls and communications are performed by programs stored in the ROM.

FIG. 15 is a diagram showing the input/output state of signals to and from the scanner section 6a as viewed from the main body section 1 side.

In the figure, the fact that a power signal is output means that the main body 1
This shows that power for exposure and signal generation is supplied from the power supply section 56 to the scanner section 6a. The ground signal indicates that the power supply is grounded. The fact that the exposure ON signal is output indicates that the exposure of the scanner section 6a is in the ON state. The fact that the reading start signal is being input means that the reading is started in the scanner section 6a, that is, the start signal is being output. The input of the synchronization clock signal indicates that the scanner section 6a has started reading, and that the synchronization 3 clock has been input accordingly. The input of the mirror image signal indicates that the image read by the scanner section 6a is a mirror image. The input of the optical system set signal indicates that one of the scanner units is attached. The signal ground signal indicates that a signal ground is established. The output of the command transfer line signal indicates that the command on the optical system unit is being transferred from the main body.

Inputting the status transfer line signal indicates that the status is being transferred from the optical system unit section to the main body section.

FIG. 16 is a block diagram showing the configuration of an optical system unit section according to an embodiment of the present invention.

Among the optical system units, for the standard type and reduced type optical system units, the control signal output from the main body 1,
Reading control is performed based on a synchronous clock signal from a synchronous clock generator 71 that is output in synchronization with the rotating roller of a manually moved handy scanner.

4. For fixed document table type and self-propelled scanners, the reading operation of the optical system unit is controlled from the main body by a control signal output from the main body via a communication line with the main body. The operation unit 9 is provided with a switch for starting the handy scanner and a display unit such as an LED.
It exchanges various signals with the MPU 79. The exposure lamp 32 receives exposure light from the main body 1 from the MPU 79.
A control signal is provided in response to the N signal. The scan motor 80 receives a scan motor drive signal from the MPU 79 for driving the self-propelled type and the fixed document table type optical system.
given from. The motor pulse signal 81 is an output signal from a pulse disk attached to the scan motor 80, and serves as a reference for a synchronization clock sent to the main body via the MPU 79. The image leading edge 5W82 is a switch that indicates the leading edge of the document, and outputs a signal that detects the leading edge of the document to MP.
Give to U79.

FIG. 17 is a plan view of the operation parts 9a and 9b provided in the scanner parts 6a and 6b of the manual handheld scanner shown in FIG. 3, and FIG. FIG. 3 is a plan view of an operation section 9C provided in a scanner section 6c of the self-propelled scanner section.

In both figures, the manual handheld scanner is equipped with only a start switch that commands the start of the reading operation, while the self-propelled handheld scanner is equipped with a start switch and the ability to adjust the exposure level in three levels. An exposure level SW is provided.

FIG. 19 is a plan view of the operating section 4 provided in the main body section 1 shown in FIG. 3. FIG.

In the figure, the operation unit is provided with LEDs that display various information (whether or not a card is attached, whether the card is in a writable state, whether an optical system is set, and whether or not a reading operation is in progress). The mode select SW is used to switch between binary and halftone modes of the original. The reading width SW specifies the reading width for a document. The scannable distance SW displays the scannable distance on the digital formula 6 value display section 70 based on the designation of the scan width depending on the availability of the storage area of the inserted memory card. Therefore, even if a storage area of the same capacity is available, this value will change depending on the specified width during reading.

The scanning distance SW is valid only when a self-propelled scanner unit is attached, and allows the scanning distance to be specified.

Next, the reading timing of various types of handy scanners will be explained.

FIG. 20 is a diagram showing the reading timing of the manual handy scanner shown in FIGS. 2A and 2B.

When the optical system unit is set in the main body, the set signal changes from "H" level to "L" level and becomes active. Then, when the user presses down the start SW of the scanner section, the start signal is output to the main body section.

The main body receives the signal and turns on the exposure signal to the exposure lamps 32a to 32 mounted on the optical system unit.
Turn on c. When the user moves the handy scanner relative to the original while the exposure signal is ON, a synchronization clock signal (horizontal synchronization signal) is supplied to the main body in response to the movement. The main body reads image data based on this synchronized clock.

FIG. 21 is a diagram illustrating the reading timing of the document scanner fixed type document table shown in FIG. 2C.

In the figure, when the main body and the optical system unit are connected, the set signal changes from the "H" level to the ML# level and becomes active.

When the user presses the start S of the operation section on the optical system unit side
When W is pressed down, it receives that signal and outputs a start signal to the main body.

When the main body side receives the start signal, it turns on the exposure signal to start the optical system unit. When the exposure signal is turned ON, the optical system unit recognizes it as a reading request and a continuous reading request, and also drives the scan motor to the scanning side to start a scanning operation.

When the document reaches the leading edge position, the image leading edge SW is turned on, and a synchronizing clock (horizontal synchronizing signal) is output. When it has moved a predetermined distance (controlled by the pulse colorant), the start signal is turned OFF, the exposure signal is turned OFF, and the output of the synchronization clock is stopped. Further, since the start signal is turned OFF when the memory card becomes full, the operation of the optical system unit can be forcibly stopped.

After the reading operation of the optical system unit is completed, the scan motor is reversed to perform a return operation in order to return the optical system to the home position.

FIG. 22 is a diagram showing the reading timing of the self-propelled handy scanner shown in FIG. 2D.

Referring to the figure, when the main body and the optical system unit are connected, the set signal changes from the "H" level to the "L" level and becomes active.

The user can press the star) S on the operation section on the optical system unit side.
When you press down on W, it receives that signal and sends a start signal to the main unit. When the main body side receives the start signal, it turns on an exposure signal for starting the optical system unit. When the exposure signal is turned on, the optical system unit turns on the exposure lamp as preparation 9 for starting the reading operation. When the start SW is released from being depressed by the user, that is, when the OFF edge of the start SW is detected, the scan motor is turned on and a scan operation begins.

In the self-propelled handy scanner, since the non-day scanner itself moves, movement (scanning) is prohibited when the start SW is pressed down. After entering the scan operation, a pulse signal is output in synchronization with the rotation of the motor. A synchronized clock based on the pulse signal is transmitted to the main body.

In the self-propelled handy scanner, the reading operation is completed either by stopping by a fixed pulse count (fixed distance) based on the designation of the scanning distance or by stopping by turning off the exposure ON signal from the main body.

Next, the operation of the main routine of the CPU of the main body will be explained.

FIG. 23 is a flowchart showing the main routine of the control section of FIG. 11.

0 First, in step 5100, when the power is turned on, read operation conditions, internal register memory settings, internal timer settings, etc. are performed.

In step 5101, an internal timer is started that determines the length of the main routine set in the initial settings.

Subsequently, in step 5102, it is checked whether a memory card is installed or not and whether the memory card has sufficient storage capacity. In step 8103, communication control for transmission and reception between the main body and the optical system unit is performed. In step 5IO4, the switch' performs input processing such as input from sensors and flag setting.

In step 5105, the image reading operation is controlled, and in step 5106, output processing for displaying the processing status of the image reading device is executed.

In the next step 5107, a memory card write process is performed, and in step 5108, it is determined whether or not the internal timer has expired, and after waiting for the internal timer to expire, the process returns to step 5101. In this way, one cycle time of the main routine is defined by the internal timer, and this main routine is repeatedly executed while the power is turned on.

FIG. 24 is a flowchart showing specific contents of the memory card check subroutine of FIG. 23.

First, in step 5200, data serving as a recognition code stored in the first address of the memory card is read.

In step 5201, it is determined whether the read data matches a pre-registered recognition code.

If it matches the recognition code, it is assumed that the card exists and the card flag is set to 1 (8203). On the other hand, if it does not match the recognition code (No in step 5201), it is assumed that the memory card is not inserted and the card flag is set to O in order to prohibit reading operations and the like and the process returns (S202).

If it is recognized that there is a memory card, in step 5204, it is calculated how much memory area 2 that stores image data remains. In step 5205, it is determined whether there is any free space in the storage area. If there is a free area, the data full flag is set to 0 (5207), and the start address is set in the register in order to set the start address for storing the data of the next image to be stored (S208). If there is no free area (No in S205), the data full flag is set to 1 and the process returns to indicate that there is no more storage capacity (S206).

FIG. 25 is a flowchart showing specific contents of the communication control subroutine of FIG. 23.

In step 5250, it is determined whether there is any received data transmitted from the optical system unit to the main body. If there is received data, its contents are analyzed in step 5251. In the handy scanner according to the present invention, one piece of received data is returned in response to one command, so the next command can be sent in the same state that the data has been sent.

Therefore, every time reception data is received, the transmission flag indicating that three commands are currently being transmitted is cleared (S252).

In step 8253, it is determined whether there is a command currently being transmitted, that is, whether the transmission flag is "0". When a command is sent, the received data is returned within a certain period of time. Here, it is checked in step 5254 whether the certain period of time has elapsed. If no answer is received even after this fixed period of time has elapsed, the transmission flag is forcibly cleared in step 5255.

On the other hand, when there is no command currently being sent (Y at 8253)
ES), it is determined in step 5256 whether there is a next command to send. When there is a command to be sent, send the command to the optical system unit 5257
), and stores the time of transmission (S258). Then, the process returns after setting the transmission flag (S25
9).

FIG. 26 is a flowchart showing specific contents of the input processing subroutine of FIG. 23.

First, in step 5300, the switch reads the set state of the sensor 4, that is, ON10FF of the optical system set signal, start signal, and mirror image signal transmitted from the optical system unit, and in step 5301, the optical system set signal is ON ( “0”). When the set signal is not output, the set, mirror image, and start flags are set to 0 in step 5302. Then, in 5303, it is determined whether data has been written to the memory card. Normally, writing to a memory card is
■ Optical system set ■ Memory card set ■ Since this is performed under the condition that the capacity of the memory card is not full, writing to the memory card should not be performed when the optical system set signal is not output. However, in self-propelled scanners and scanners with a fixed document table, trouble is detected in the optical system unit, and if a trouble is detected, the optical system set signal is turned OFF. Therefore, based on the trouble detection results of this optical system unit, if trouble 5 occurs, the data currently being written will become invalid, so the process returns after clearing the memory contents (S30).
5). If the set signal is output (Y in S301)
ES), the set flag is set to 1 in step 5304, and in step 5306 it is determined whether the image is a mirror image, that is, whether a mirror image signal is output. When the mirror image signal is not output, the mirror image flag is set to 0 in step 5308 and the process proceeds to step 5309. When the mirror image signal is output (YES in S306), a mirror image flag indicating that the image data is to be subjected to mirror image processing is set in step 53.
07 is set to 1 and the process advances to step 5309. Note that since whether or not a mirror image is formed is determined by the optical system, this mirror image signal is transmitted from the optical system unit side to the main body. Further, the relationship between the mirror image signal ON/OFF and the mirror image flag shown above is based on the standard scanner shown in FIG. 2A. Therefore, when using a reduction type scanner like the one shown in Figure 2B, the image data is inverted in the optical system itself, so if you reverse the logic of the mirror image switch ON and 06 FF from the standard type scanner, good.

That is, when the mirror image switch is OFF, a mirror image signal is output, and the image that has been inverted by the optical system is inverted again by mirror image processing. Then, the mirror image switch is turned OFF.
The flow may be such that the mirror image flag is set to 1 when the flag is F.

The reading operation of the handy scanner is performed when the following conditions are satisfied: 1) the memory card is installed and the stored data is not full; and 2) the reading start signal is ON (when the user presses down the start SW). Therefore, these conditions are determined at 5309, 5310, and 5311, and the start flag is set only when all conditions are met (S312). If even one condition is not satisfied, the start flag is reset (8313) and the process proceeds to step 5314.

In step 5314, it is determined whether the reading width switch is turned on. When the reading width switch 7 is ON, the reading width flag is incremented by one at 8315, and the reading width flag is incremented by 4 at step 5316.
It is determined whether or not the value is greater than or equal to the value. When the reading width flag is 4 or more, the flag is set to 0 in step 5317,
If the reading width flag is less than 4, proceed directly to step 831.
Proceed to step 8.

In step 5318, it is determined whether the scanning distance switch is ON. When the scanning distance switch is ON, the scanning distance flag is incremented by 1 in step 5319. In step 5320, it is determined whether the scanning distance flag is 4 or more. When the scanning distance flag is 4 or more, the flag is set to O in step 5321, and when the scanning distance flag is less than 4, the process directly proceeds to step 5322.

In step 5322, it is determined whether the mode select SW is ON. When the mode select switch is ON, it is determined in step 8323 whether the currently selected mode is binary. If the current mode is binary, the mode is switched to halftone mode in step 5324, while if the current mode is not binary, it is switched to the binary mode in step 5325.

Next, in step 8326, it is determined whether the scannable distance SW is ON. When the scannable distance SW is on, the scannable distance flag is set to 1 in step 5327, and the process returns; however, when the scannable distance SW is not on, the process returns.

In addition, in the above flow, the configuration is such that you select one of four fixed lengths (both main scanning side and sub-scanning side), but you can input any scanning distance or reading width using the numeric keypad etc. It is also possible to have such a configuration and use it for a designated convenience.

Also, in the above flow, the scanning distance can be determined regardless of the remaining scanning distance based on the free space of the memory card, but setting a scanning distance that exceeds the remaining scanning distance is prohibited. It is also possible to have a configuration like this.

Figure 27 shows subroutine 9 of the reading process in Figure 23. FIG. 2 is a flowchart diagram showing specific contents.

First, in step 5400, it is determined whether the start flag is "1". That is, it is determined whether to start reading or continue reading. If the start flag is not "1", in step 5401, the reading flag is reset in order to not perform the reading operation or to stop the reading operation, and the process returns.

On the other hand, if the start flag is "1", step 84
At step 03, it is determined whether or not the read flag is "O", that is, whether or not a reading operation is in progress.

If the reading operation is in progress (No in S40B), the necessary signal settings, etc. have already been completed, and the process returns directly.

If the reading operation is not in progress, this is a request to start the reading operation, so a reading flag is set in step 5404 in order to continue the reading operation.

Next, in step 5405, it is determined whether the mirror image flag is set. If the mirror image flag is not set, the reading operation is started in normal mode 0 in step 5406, and the start address is set in step 5408, and then the process returns. On the other hand, when the mirror image flag is set, a reading operation is started in the mirror image mode in step 5407, a start address is set in step 5409, and the process returns.

FIG. 28 is a flowchart showing specific contents of the output processing subroutine of FIG. 23.

In this flow, the LED display on the main body and the exposure signal to the optical system unit are controlled.

First, in step 5500, it is determined whether a memory card is installed. If a memory card is not installed, in step 5501, in order to indicate that a card is not installed, the ``card present'' LED is set to 0FFL,
Since card writing is not possible in step 5504, the process proceeds to step 5506 after turning off the "card writing enabled" LED.

On the other hand, if a memory card is installed, step 5
502, "Card present" Turn on the LED, step 8
In step 503, it is determined whether or not the memory card is installed, but data can be written thereto. If data cannot be written, the process advances to step 5504, where the ``Card Writable JLED'' is turned off and a request is made to replace the memory card.

If the memory card is installed and writable (YES in step 8503), then in step 5505
Card writable J After turning on the LED, step 550
Proceed to step 6.

In step 8506, it is determined whether the optical system set flag is set, that is, whether the optical unit is attached to the main body.

If no optical unit is attached, step 550
Step 7: ``Optical system set J'' After turning off the LED, proceed to step 5509.

If the optical unit is installed, in step 8508 "Optical system set J LED ONL", step 5509
Proceed to.

In step 5509, the selected mode is 2.
It is determined whether the mode is value mode or not. S2 If the left mode is not the binary mode, step 551
0, the halftone LED is turned on, and step 5511 selects the selector pattern generation circuit corresponding to the halftone mode, and then the process advances to step 5514.

On the other hand, if the select mode is the binary mode, the binary LED is turned on in step 5512, the selector binary threshold is selected in step 8513, and then step 5514
Proceed to.

In step 5514, the content of the reading width flag is determined. If the reading width flag is "O", the LED indicating that the reading width is 52.5 mm is lit in step 5515, and if the reading width flag is "1", the reading width is set to 1 in step 5516.
The LED indicating 05mm is lit and the reading width flag is “2”.
, the reading width is 157.5m in step 5517.
If the LED indicating m is turned on and the reading width flag is "3", in step 5518 the LED indicating reading width is 210 mm is lit.
After lighting up the ED, the process advances to step 5519.

In step 5519, the content of the scanning distance flag is determined. If the scanning distance flag is "0", LE indicating 74 mm as the scanning distance in step 5520
D is lit, and if the scanning distance flag is "1", the LED indicating the scanning distance is 148 mm is lit in step 5521, and if the scanning distance flag is "2", step 5
At 522, turn on the LED indicating that the scanning distance is 22Qmm,
If the scanning distance flag is “3”, step 8523
After lighting the LED indicating that the scanning distance is 297 mm, the process advances to step 5524.

In step 5524, it is determined whether the scanning distance display flag is set. When the scanning distance display flag is set, the scanning distance is calculated in step 5527, and the scanning distance display LED is turned on in step 5528.
It becomes N. After the display time storage flag is reset in step 5529, the process advances to step 8530. On the other hand, when the scanning distance display flag is not set in step 5524, it is determined in step 5525 whether a certain period of time for display has elapsed. If the predetermined time has elapsed, the display of the scan 4 distance is turned off in step 5526, but if the predetermined time has not elapsed, the process directly advances to step 8530.

In step 8530, it is determined whether the start flag is set, that is, whether the handy scanner is in the reading operation or has started the reading operation.

If the reading operation is not in progress, in step 8531
After setting the LED to 0FFL and turning off the exposure signal in step 8532, the process returns. On the other hand, if the reading operation is in progress, in step 8533 the ``reading J LED is turned ON, and in step 8534 after the exposure signal is turned on to turn on the exposure of the optical system unit or to start and continue the reading operation. Return.

FIG. 29 is a flowchart showing specific contents of the memory card write processing subroutine of FIG. 23.

A clock signal is generated for the digitized image data output from the COD in synchronization with the horizontal synchronization signal sent from the optical system unit, and is written into the image data FIFO based on the clock signal. Then, when the data is written to the FIFO, the empty flag becomes "0". First, in step 5700, it is determined whether a start flag is set, that is, whether an image is being read. If the image has not been loaded, it will return as is, but
If image data is being written, step 5
In step 701, it is determined whether the empty flag is set, that is, whether image data has already been written to the FIFO. If the image data has already been written, in step 5702, it is determined whether the image data has been written to the CCD. It is determined whether the projected image is a mirror image. If the image being projected is a mirror image, bit permutations are performed in step 8703.

In other words, the input bits are b7b6b5b4b
, b2b, bo, this is bob.

This involves permuting bits like b2 b3 b4 b5 b6 b7. On the other hand, if the projected image is not a mirror image, the process advances to step 5704 without bit replacement. That is, the data controlled by whether it is a mirror image or not is written to the memory card in step 5704. Then, in step 5705, the address for writing the next new data is updated, and then the process returns.

Note that the address is updated in step 5705 by +1 if the projected image is not a mirror image, and by -1 if the projected image is a mirror image. Further, the address is updated when a synchronization clock is input.

Figure 30 shows the MPU of the optical unit shown in Figure 16.
2 is a flowchart of the main routine of FIG.

First, in step 5100O, initialization processing such as initialization of internal RAM and output port is performed.

In step 51001, a command from the main unit is received, analyzed, and an answer to the command is sent back. In step 51002, input processing of a start signal and the like provided in the optical unit is performed. In step 510073, it is checked whether there is a scan request from the main body, that is, whether the exposure signal is ON. If there is no scan request, the process returns to step 51001, but if there is a scan request, the process returns to step 5100.
After the scanning operation is performed in step 5100I
Return to.

FIG. 31 is a flowchart showing specific contents of the command input subroutine of FIG. 30.

In step 8.1100, it is determined whether a command has been input. If there is a command input, step 5
The command input in step 1101 is parsed, and step 5
At step 1102, an answer is returned to the main unit based on the command, and then the process returns.

If there is no command input, simply return.

FIG. 32 is a flowchart showing specific contents of the input processing subroutine of FIG. 30.

First, in step 51200, it is determined whether the start SW is turned on. If the start SW is pressed, the start flag is set in step 51201, the start signal is turned on in step 51202, and the process returns. If the start SW is not pressed, the start flag is reset in step 8120B, and the start signal is turned off in step 51204.
Return after FF.

FIG. 33 is a subroutine for scanning shown in FIG. 30, and is for a scanner with a fixed document table.

At step 81300 it is determined whether the slider is in the home position. If the slider is not in place, step 5
Return the motor at step 1301, and step 81302
Perform the return operation until the slider returns to its home position. Once the slider returns to its home position, step 8130
The motor is stopped in step 3, and the exposure lamp is turned on in step 81304.

On the other hand, if the slider is in the fixed position (Y at 81300)
ES), step 81304 without driving the motor.
Turn on the exposure lamp.

Next, in step 81305, to start the scanning operation,
The motor is caused to scan, and in step 813906, a leading edge SW signal indicating the leading edge of the document is input.

In step 81307, it is determined whether the scanning unit has reached the leading edge of the document. When the scanning unit reaches the leading edge of the document, in step 51308 the synchronous clock gate is turned on to transfer the synchronous clock to the main unit, and in step 31309 it is determined whether or not a predetermined effective image area has been scanned. be done. If the valid image area has not been scanned, an exposure signal is input in step 81310, and it is determined in step 81311 whether the exposure signal is turned on. When the exposure signal is ON, the effective image area is continuously scanned, but when the exposure signal is OFF, it is regarded as a request to stop scanning from the main body.
Force the scanning operation to end. On the other hand, when the scanning of the valid image area is completed, the process advances to step 81312 and the synchronization clock gate is turned off. In other words, since image output has been completed, the synchronization clock sent to the main body is stopped. Furthermore, step 8131
3, the start request is eliminated by setting the start signal to the main unit to OF0F. In step 81314, the exposure lamp is set to 0FFL,
After that, in step 81315, the motor is returned to return the slider to its home position. The return operation of the motor is performed until the slider returns to the home position in step 81316, and with the slider returned to the home position, the flow returns after the motor is turned off in step 51317.

FIG. 34 is a subroutine of the scanning operation shown in FIG. 30, and is related to scanning by a self-propelled handy scanner.

First, in step 51401, upon receiving a scan request signal from the main body, the exposure lamp is turned on.

In step 51402, it is determined whether the start SW is turned off. In the self-propelled handy scanner, scanning is started when the start SW is turned off, so in this case, in step 31403, the motor is rotated to start the scanning operation. Step 5
At step 1404, the synchronous clock gate is turned on to transmit the synchronous clock obtained from the pulse disk to the main body.

In step 51405, it is determined whether a scan of a predetermined distance has been performed. If scanning of a certain distance has not been completed, step 51406
An exposure signal is input in step S407, and it is determined whether the exposure signal is turned on. That is, scanning will continue until a signal indicating a scan stop request is input from the main body. When the exposure signal is turned off in step 51407, this means a forced stop of the scanning operation, and the process proceeds to step 81408. On the other hand, if the fixed distance scan is completed (YES in step 51405),
Similarly, the process advances to step 81408. Step 81408
Now that the reading operation has stopped, the synchronous clock gate is turned 0FFL, and the start signal is turned OFF in step 51409.
F. Then, in step 51410, turn the exposure lamp to 0F.
FL, return after turning off the motor in step 51411.

2 FIG. 35 is a flowchart showing the interrupt processing of the optical unit.

An interrupt operation is performed by the output of a rotary encoder to a pulse disk provided in the motor. Each time an interrupt operation is performed in step S1501, a counter is incremented. This allows the scan line (scan distance)
can be measured, and based on this it can be determined whether the effective image area has been scanned.

FIG. 36 is a flowchart showing the interrupt processing of the optical system unit.

This interrupt processing is performed at regular intervals.

In step 51601, it is determined whether a synchronous clock is being transmitted to the main body, that is, whether a reading operation is currently being performed. If scanning is not in progress, return as is, but if scanning is in progress, step 516
At step 02, it is determined whether or not the counter value has changed, that is, whether an output from the rotary encoder 3 has been obtained for the pulse disk attached to the motor within a certain period of time. If the counter value has changed, there is no problem and the process returns as is. If the counter value does not change, it means that the reading operation is not being performed normally. In other words, by looking at the change in the count value, you can determine whether it is a FATAL error or not.
In the case of a self-propelled handy scanner, it can be determined whether the roller is unable to rotate due to lack of torque due to collision with a wall or the like. In this way, it can be determined whether a trouble has occurred with the handy scanner. Therefore, if the counter value does not change, the synchronous clock gate is turned off in step 81603, and further in step 51604,
After turning off the start signal, exposure lamp, motor, and optical system set signal in steps 51605, 51606, and 51607, step 81
At step 608, after a certain period of time has elapsed, reading of the optical system unit section is restarted from address 0, thereby returning to the initial state.

FIG. 1 is a diagram showing a cross-sectional structure of a self-propelled integrated scanner according to another embodiment of the present invention.

This figure corresponds to the self-propelled handy scanner in which the main body part is removable and removable, as shown in FIG. 6 according to the previous embodiment.

Hereinafter, differences from the previous embodiment will be mainly explained.

In the figure, in this embodiment, the main body portion and the scanner portion are integrally formed, so a connector for connecting them as in the previous embodiment is not provided.

Also, an operation unit for instructing scanning of the scanner] 1-5
Only one is provided on the main body of the scanner. The CCD line sensor is provided directly on the SELFOC lens 111, and the mirror 3 as shown in FIG.
3b is not provided. For other configurations, see Section 6.
Similar to that shown in the figure.

FIG. 37 is a plan view showing specific details of the operating section 115 of FIG. 1.

This figure corresponds to FIG. 19 of the previous embodiment.

In this figure, there are also 5 differences from the previous embodiment. This section explains the parts that are used.

In the figure, in this embodiment, since the main body part and the scanner part are integrated, no LED is provided to indicate the optical system set to indicate whether or not they are connected. Instead, a star l- to instruct the scanner to start reading.
SW is provided.

That is, in the self-propelled integrated scanner, when the start SW provided on the operation unit 15 is pressed and then released, the self-propelled integrated scanner starts the scanning operation.

The other configurations are the same as those in the previous embodiment.

FIG. 38 is a block diagram showing a specific configuration of the control processing section 103 in FIG. 1.

This figure corresponds to FIG. 13 of the previous embodiment.

[7 Therefore, the differences from FIG. 13 will be mainly explained.

In the figure, since the scanner section and the main body section are not separated in this scanner, the synchronous clock generation section 171, exposure lamp 132, and drive motor 1678 are directly connected to the CPU 15F. Also, as in the previous embodiment, there is a mirror image signal to indicate the mirror image state, an optical system set signal to indicate the connection between the reading section and the main body section,
A reading start signal that commands the start of reading operation, a command transfer line for communicating with the optical system unit,
The status transfer line and CPU 151 are not connected.

The reading start signal in the previous embodiment is processed by providing a start SW in the operation unit 1]-5. The other configurations are the same as those in the previous embodiment.

FIG. 39 is a flowchart showing the main routine of the CPU of FIG. 38.

This figure corresponds to FIG. 23 of the previous embodiment. Therefore, the differences from FIG. 23 will be mainly explained.

In this embodiment, since the optical system and the main body are integrated, the CPU 151 collectively controls the scanning process in the optical system as in the previous embodiment (321
03). On the other hand, the communication control routine as shown in the seventh embodiment is not required since this is a body scan. Other processes are the same as those in the flowchart for the self-propelled handy scanner in the previous embodiment, so they will not be described repeatedly here.

[Effects of the Invention] As explained above, the present invention stops the movement of the support member that supports the imaging means and the processing means based on the specified range, thereby preventing collisions with walls etc. after self-propelled movement. This eliminates troubles and improves usability.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional structural diagram of a self-propelled body scanner according to another embodiment of the present invention, and FIGS. 2A to 2D are mounting states of various scanner parts in a separate handy scanner according to an embodiment of the present invention. A schematic cross-sectional view showing the
Figures A and 2B are schematic perspective views showing the configuration of the manual handheld scanner, and Figure 4 is a schematic perspective view showing the internal structure of the standard type scanner section and main body shown in Figure 2A. 5 is a schematic perspective view showing the configuration of the self-propelled scanner shown in FIG. 2D, and FIG. 6 is an internal view of the self-propelled scanner section and main body shown in FIG. 2D. A schematic sectional view showing the structure; FIG. 7 is a diagram showing the image input state of the standard type scanner section shown in FIG. 2A; FIG. 8 is a diagram showing the image input state of the reduced type scanner shown in FIG. 2B. FIG. 9 is a schematic perspective view showing the configuration of the scanner fixed on the document table shown in FIG. 2C, and FIG. 10 shows the image input situation of the scanner fixed on the document table shown in FIG. 9. FIG. 11 is a schematic block diagram showing the configuration of a handy scanner according to an embodiment of the present invention, FIG. 12 is a diagram showing the storage contents of the memory card shown in FIG. 3, and FIG. FIG. 14 is a block diagram showing the specific configuration of the main body in FIG. 11, FIG. 14 is a diagram showing the memory map of the CPU in FIG. 13, and FIG. 15 is a diagram showing the scanner section when viewed from the main body in FIG. FIG. 16 is a diagram showing the signal input/output state, and FIG. 16 is a diagram showing the specific configuration of the scanner section in FIG. 11. 17 is a plan view of the operating section provided in the scanner section shown in FIG. 3; FIG. 18 is a plan view of the operating section provided in the self-propelled scanner shown in FIG. 5; FIG. 19 is a plan view of the operation section provided in the main body of the scanner according to an embodiment of the present invention, and FIG.
0 is a diagram showing the timing of the reading operation of the manual handheld scanner shown in FIG. 3, FIG. 21 is a diagram showing the timing of the reading operation of the scanner fixed to the document table shown in FIG. FIG. 22 is a diagram showing the timing of the reading operation of the self-propelled scanner shown in FIG. 5, and FIG. 23 is a flowchart diagram showing the main routine of the CPU of the scanner main body according to an embodiment of the present invention. FIG. 24 is a diagram showing the specific contents of the memory card check routine in FIG. 23, FIG. 25 is a flowchart diagram showing the specific contents of the communication control in FIG. 23, and FIG. A flowchart diagram showing the specific contents of the process, Figure 27 is similar to Figure 23.
A flowchart diagram showing the specific contents of the reading process of the diagram,
FIG. 28 is a flowchart showing the specific content of the output process in FIG. 23, FIG. 29 is a flowchart showing the specific content of the memory card write process in FIG. 23, and FIG. A flowchart showing the main routine of the MPU of the optical system unit according to an embodiment of the invention, FIG. 31 is a flowchart showing the specific contents of the command input shown in FIG. 30, and FIG. 32 shows the input processing shown in FIG. 30. Flowchart diagram showing the specific contents of, Part 3
FIG. 3 shows the specific content of the scan shown in FIG.
The figures show the specific contents of the scan shown in Fig. 30, a flowchart of the self-propelled handy scanner, Fig. 35 a flowchart showing the interrupt processing in the optical system unit according to an embodiment of the present invention, and Fig. 36 Figure 37 is a diagram showing specific contents of a timer interrupt according to an embodiment of the present invention.
The figure is a plan view showing the details of the operation section shown in FIG. 1, FIG. 38 is a block diagram showing the specific configuration of the control processing section shown in FIG. 1, and FIG. 39 is the content of the main routine of the CPU shown in FIG. 38. It is a flowchart figure which shows. In the figure, 101. is the scanner body, 103 is a control processing unit, 105 is a CCD, 107 is a motor, 1 108a, 108b are rollers, 1 1 0
+tz<lus encoder, 111 is a self-off lens, and 112 is an LED array. In each figure, the same reference numerals indicate the same or corresponding parts. 2 Fig. 3 Fig. 2B Fig. 2C Scheme 2D Fig. 7 Fig. H Fig. 14 Fig. 5 Fig. 17 Fig. 8 Fig. 26 Fig. 209966 (26) Fig. 28 Fig. 29 Fig. 30 Fig. 31 Fig. 32 Fig. 33 JP-A-3 209966 (31) Fig. 35 JP-A-3 209966 (32) Fig. 37

Claims (1)

[Scope of Claims] Imaging means comprising an optical system that forms an image of a document; processing means that reads and processes the formed document image; and integrally supporting the image formation means and the processing means. and a specifying means for specifying a range of a document image to be read, the support member being placed directly on the document or on a placing surface on which the document is placed. An image reading device that mechanically moves a support member relative to a document, and stops movement of the support member based on the specified range.