JP2001189827A - Picture reader, its control method and computer- readable storage medium storing its control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve convenience concerning the restarting of reading operation after interruption in a picture reader which automatically carries an original along the reading position of a picture reading means to read the picture of the original and stops the carrying of the original to interrupt the reading operation in occurrence of a reading interruption main cause during the reading operation. SOLUTION: When a read starting request for restarting the read operation is generated (S502) after the read operation is interrupted by occurrence of the read interruption cause, whether or not the read operation can be restarted without removing the original from an original carrying path along the reading position is decided according to whether a read confirmation flag is off or not (S503). In the case of deciding it to be possible, the read operation is restarted (S505 and thereafter). In the case of deciding it to be impossible, an error message for urging an operator to remove the original from the original carrying path without restarting the read operation is displayed (S504).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus for reading an image of a document, and more particularly to reading an image of a document by automatically transporting the document along a reading position of an image reading means and reading the document during a reading operation. The present invention relates to an image reading apparatus having a function of stopping conveyance of a document when a cause of interruption occurs and interrupting a reading operation, a control method thereof, and a computer-readable storage medium storing the control program.

[0002]

2. Description of the Related Art Conventionally, there is a facsimile apparatus as an apparatus including an image reading apparatus for reading an image of a document. In a general configuration of a recent facsimile machine, AB
It has an ADF (automatic document feeder) mechanism that automatically conveys a standard size cut sheet document (hereinafter, referred to as a sheet document) such as a system. It is transported along an image reading position of a certain contact sensor or the like, reads each image, and transmits or copies image data.

In such a facsimile apparatus, during reading of an image by scanning a sheet document (hereinafter referred to as sheet scanning), pressing of a stop key on an operation panel of the apparatus, jamming of a document, or jamming of a recording paper. A configuration having a function of interrupting a sheet scan operation when a sheet scan interruption factor occurs is employed. According to the conventional configuration of the facsimile apparatus having this function, (a) after stopping the conveyance of the document in response to the occurrence of the sheet scan interruption factor during the sheet scanning operation and interrupting the sheet scanning operation, Or the sheet scan operation cannot be resumed without removing the original document in (1), or (b) automatically ejects the original document in the original transport path when a sheet scan interruption factor occurs, and then the sheet scan operation can be resumed. It has a configuration.

[0004]

However, according to the configuration (a), when the sheet scanning operation is interrupted, the rear end of the original has already passed the image reading position of the image reading means in the original conveying path, so that the actual position of the original does not change. If scanning is completed normally, or if the leading edge of the document is closer to the image reading position and scanning has not actually started, the sheet scan operation can be performed without removing the document. However, even in these cases, the operator has to remove the original from the transport path, which requires unnecessary labor and is inconvenient.

Further, in any of the above configurations (a) and (b), the operator does not know whether the scanning of the original in the original transport path has been completed normally when the sheet scanning operation is interrupted. I do not know the original to be reset,
It was inconvenient. Then, when the sheet scanning operation is interrupted, the scanning of the document in the document conveying path has been completed normally,
Even if the original should not be set again after the interruption, the original may be set again and the same original may be scanned twice.

Therefore, the present invention is not limited to the facsimile apparatus, and the present invention is not limited to a facsimile apparatus. The original is automatically conveyed along the reading position of the image reading means to read the image of the original. In an image reading apparatus having a function of interrupting an operation, an object of the present invention is to solve the above-described problem and to improve convenience related to restart of a reading operation after an interruption of a reading operation.

[0007]

According to the present invention, a document is automatically conveyed along a reading position of an image reading means to read an image of the document, and the reading operation is performed during the reading operation. An image reading apparatus which stops the conveyance of a document when a reading interruption factor occurs and interrupts the reading operation, a control method therefor, and a computer-readable storage medium storing the control program for reading by the occurrence of the reading interruption factor After the interruption of the operation, when a reading start request for resuming the reading operation is issued, it is determined whether or not the reading operation can be resumed without removing the document from the document conveying path along the reading position. If it is determined that the reading operation is possible, restart the reading operation.If it is determined that the restarting is not possible, restart the reading operation. And to perform the output of the warning information prompting the removal of the document from the document conveying passage to the operator.

Further, after outputting the warning information, it is determined whether or not the document has been removed from the document conveying path. If it is determined that the document has been removed, the output of the warning information is canceled.

When a reading start request for resuming the reading operation is issued after the reading operation is interrupted due to the occurrence of the reading interruption factor, the reading operation is performed along the document conveying path in the document conveying path immediately before the reading position. The document is not removed from the document transport path depending on whether or not there is a document between the document transport position where the leading edge of the document passes through the predetermined position and the document transport position where the trailing edge of the document reaches the reading position. It is determined whether the reading operation can be restarted.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. Here, an embodiment in a facsimile apparatus will be described.

FIG. 1 is a block diagram showing a hardware configuration of a facsimile apparatus according to an embodiment of the present invention.

In FIG. 1, reference numeral 101 denotes a CPU;
Each unit of the apparatus is accessed via the PU bus 119 to control the entire apparatus.

Reference numeral 102 denotes a ROM for storing a control program for the CPU 101, which corresponds to an embodiment of a computer-readable storage medium storing a control program for the image reading apparatus according to the present invention. ROM102
Stores a control program for performing each step as shown in the memory map of FIG. The steps include: a sheet scanning step of scanning a sheet original; a book scanning step of scanning an original such as a book (hereinafter referred to as a book original) that cannot be set on an ADF mechanism described later; image data read by scanning Or an image memory storage step of storing image data received by facsimile reception in an image memory; a recording output step of recording and outputting image data with a printer; a facsimile transmission step of performing facsimile transmission; a facsimile reception step of performing facsimile reception; There are, in particular, steps according to the present invention: a sheet scan interrupting step of interrupting the sheet scan operation in response to the occurrence of a sheet scan interrupting factor as described below; When there is, read later A sheet scan restart determination step for determining whether or not to resume sheet scanning based on whether the confirmation flag is off; an error message display for displaying an error message described later when the reading confirmation flag is on in the determination of this step; And a document removal determining step of determining whether or not the sheet document has been removed from the sheet document transport path of the ADF mechanism.

In FIG. 1, reference numeral 103 denotes a RAM constituted by an SRAM or the like, which stores program control variables, setting values registered by an operator, device management data, and the like, and is used as various work buffers.

Reference numeral 104 denotes an image memory for storing image data, which comprises a DRAM or the like.

Reference numeral 105 denotes a resolution conversion processing unit for performing a Milli-inch resolution conversion of raster data.

Reference numerals 106 and 107 denote encoding / decoding processing units for performing encoding / decoding processing of image data for communication of the facsimile apparatus and encoding / decoding processing of image data for reading / recording, respectively. .

Reference numeral 108 denotes a timer for measuring a time such as an operation interval, which is constituted by a clock IC or the like.

A modem (MODEM / modulator / demodulator) 109 modulates and demodulates facsimile transmission / reception signals.

Reference numeral 110 denotes an NCU (network control device) which controls communication for exchanging image information with a facsimile machine of a communication partner via a communication line 118.
NCU 110 sends out a selection signal (dial pulse or tone dialer) to communication line 118, and performs an automatic incoming call operation and a line control operation by detecting a ringing tone.

An image processing unit 111 processes an image data signal input from the sheet scanner 112 or the book scanner 113, and is constituted by an LSI image processing device or the like. The sheet scanner 112 scans a sheet document and reads an image thereof. The sheet scanner 112 automatically scans the sheet document one by one automatically by driving a CS (contact sensor) as an image sensor (not shown) and a document conveying motor described later. An ADF (automatic document feeder) mechanism for feeding is provided. The book scanner 113 scans a book document and reads its image, and has a CS or the like (not shown) as an image sensor. The sheet scanner 112 and the book scanner 113 optically read an image of a document and convert the image into an image data signal. This image data signal is subjected to processing such as correction by the image processing unit 111 to be a signal of high-definition image data. Note that both scanners 112 and 113
Share the same CS, and are provided with a CS moving mechanism (not shown) for moving the CS as described later.

A line buffer 114 is used for controlling the transfer of image data.

Reference numeral 115 denotes an operation unit for the operator to perform various input operations, a keyboard including various input keys, and an LCD for displaying various information for instructing the operation of the apparatus and confirming the state. And display means including LEDs and the like.

Reference numeral 116 denotes a printer formatter that analyzes a printer description language and converts it into image data to be recorded by the printer 117. The printer 117 records a received image or image data of a file on a recording sheet, and is composed of LBP or the like.

Reference numeral 118 denotes a communication line, which comprises a telephone line connected to the PSTN or the like.

Next, FIG. 2 is an external view of the facsimile apparatus of the present embodiment.

In FIG. 2, reference numeral 201 designates 115 in FIG.
This is the operation unit shown in FIG.

Reference numeral 202 denotes an ADF mechanism provided with an ADF mechanism for automatically and sequentially conveying sheet documents one by one.

Reference numeral 203 denotes a sheet reading unit provided with an ADF mechanism 202, which is provided on the upper surface of the apparatus main body so as to be openable and closable up and down. It also functions as a book document holding cover that holds a book document placed on the document. That is, the book document is sandwiched between the unit 203 and the apparatus main body to read the image of the book document.

A recording paper discharge unit 204 discharges recording paper on which an image received by facsimile is recorded, or recording paper on which an image read from a sheet document or a book document in the copy mode is recorded.

Next, FIG. 3 is a cross-sectional view showing the configuration around the ADF mechanism 202 of the sheet reading unit 203 described above.

In FIG. 3, reference numeral 300 denotes an ADF mechanism;
Reference numeral 1 denotes a sheet document set in the sheet feeding port 315 of the ADF mechanism 300, and 302 denotes a sheet document 301 in the sheet feeding port 315.
A document detection sensor including a photo interrupter or the like for detecting the presence or absence of a document, 303 is a roller for transporting the sheet document 301 set in the paper feed port 315, 304 and 306 are rollers for further transporting the sheet document, and 305 is a sheet document 30
A reading timing sensor 3 for detecting the sheet original 301 being conveyed in order to determine the timing for scanning 1;
Reference numeral 07 denotes a separation roller that rotates in the opposite direction to the rollers 303 and 304 to prevent double feeding of the sheet document 301, 308 denotes a discharge roller that discharges the scanned sheet document 301 from a discharge port 316, and 312 denotes a sheet document that is CS. Is a sheet document reading position at which the image of the sheet is read.

Reference numeral 309 denotes a document table on which a book document (not shown) is placed; 310, a book document reading start position at which CS starts reading an image of the book document;
Is a sheet reading unit (book original cover)
It is a sensor that detects raising and lowering (opening / closing) of the 203.

When reading the image of the sheet document 301, the CS is moved to the sheet document reading position 312. The sheet document 301 is set in the paper feed port 315 with the surface on which the image is recorded facing upward. When the document detection sensor 302 detects that the sheet document 301 is present in the sheet feeding port 315, the rollers 303, 304, and 306 to 308 are rotated by driving a document conveying motor (not shown), and the sheet feeding port 31 is rotated.
The sheet document 301 set at 5 is sequentially conveyed one by one from the upper side, and the image of the sheet document 301 is read by the CS at the sheet document reading position 312. The sheet document 301 from which the image has been read is discharged from the paper discharge port 316 by the paper discharge roller 308.

When reading the image of the book document, first, CS is moved to the book document reading start position 310, and then, while moving to the left in the figure, the image of the book document placed on the document table 309 is read. Is read.

Reference numeral 313 denotes the most downstream position where the sheet scan can be restarted, which is set immediately before the sheet document reading position 312 in the sheet document conveying path from the sheet feeding port 315 to the sheet discharging port 316 of the ADF mechanism 300. This position 313 is set after the ADF mechanism 300 stops conveying the sheet document and interrupts the sheet scanning operation as described later.
This is the most downstream position of the leading edge of the sheet document from which the sheet scanning operation can be resumed without removing the sheet document from the sheet document conveying path and resetting the sheet document.

Reference numeral 317 denotes an ADF cover.
In the DF mechanism 300, the upper portion of the sheet document transport path from the paper feed port 315 to the document transport roller 306 is
The ADF cover is configured to be openable and closable up and down. When removing a sheet document located deep in the sheet document transport path of the ADF mechanism 300 after the interruption of a sheet scanning operation described later, the ADF cover 317 is opened and the sheet document is removed. Opening and closing the ADF cover 317 is AD
It is detected by the F cover sensor 314.

FIG. 4 is a block diagram showing a functional configuration of a control system of the facsimile apparatus according to the present embodiment.

In FIG. 4, reference numeral 401 denotes a reading selecting operation means for an operator to select and specify whether to read an image from a sheet document or a book document.
Specifically, a key for inputting the selection is provided on the keyboard of the operation unit 115 in FIG. 1 described above.

Reference numeral 402 denotes sheet document detecting means for detecting the presence or absence of a sheet document, and specifically, a document detection sensor 302 in FIG.

Reference numeral 403 denotes a book document pressing cover open / close detecting means for detecting opening / closing of the book document pressing cover 203, specifically, a sensor 311 in FIG.

Reference numeral 404 denotes a reading determination means for determining whether to read a sheet document or a book document. Specifically, this determination is made by the CPU 101 in FIG.

Reference numeral 405 denotes a page counting means for reading a book document in accordance with an operator's instruction when reading a book document image mixed with a sheet document image. Or to count. Specifically, this counting is performed by the CPU 101.

Reference numeral 406 denotes a time measuring means, which is the elapsed time T from when the leading edge of the sheet document being conveyed has passed the position of the reading timing sensor 305 and the trailing edge of the sheet document is the reading timing sensor 305 as described later. The elapsed time T 'after passing through the position is measured. This is specifically the clock unit 108 in FIG.

Reference numeral 407 denotes control means for controlling the operation of the entire apparatus.
This is performed according to the control program stored in the OM 102.

Reference numeral 408 denotes sheet document means for conveying a sheet document, and specifically, the ADF mechanism 300 shown in FIG.

Reference numeral 409 denotes operation / warning display means for displaying an operation state of the apparatus and a warning message, etc. Reference numeral 410 denotes book document reading display means for displaying that a book document is being read. Is an LCD or LED of a display unit of the operation unit 115.

Reference numeral 411 denotes the C of the scanners 112 and 113 depending on whether a sheet document or a book document is read.
Scanner control means for controlling the scanners 112 and 113 such as changing the position of S. Specifically, the CPU 101 performs this control.

In the above configuration, the reading determining means 4
04 is the above 401, 402, 403, 405, 406
It is determined whether to read a sheet document or a book document based on the input data from the respective means. In response to this determination result, the control unit 407 causes the display unit 409 or 410 to display the determination result,
Sheet document conveying means 408 and scanner control means 411
To read an image of a sheet document or book document. The control means 407 (CPU 1
01) performs control relating to the present invention described below with respect to interruption of the sheet scan operation and restart of the sheet scan operation after the interruption.

Next, the operation of the facsimile apparatus of the present embodiment according to the present invention will be described. First, the outline of the operation will be described.

In the facsimile apparatus of this embodiment, if a sheet scan interruption factor occurs during a sheet document scan operation, the sheet document conveyance is stopped to interrupt the sheet scan operation. When a request to start a sheet scan for resuming the sheet scan operation is generated, the CPU 10
1 determines whether or not the sheet scanning operation can be resumed without removing the sheet document from the sheet document transport path of the ADF mechanism 300. If it is determined that the sheet scanning operation can be resumed, the sheet document transport is resumed and the sheet scanning is resumed. The operation is resumed, and if it is determined that the resume is not possible, a warning error message is displayed to urge the operator to remove the sheet document from the sheet document conveying path of the ADF mechanism without restarting the sheet scanning operation.

The determination as to whether or not the sheet scanning operation can be resumed without removing the sheet original from the sheet original transport path is made at the time of the interruption in the sheet original transport path of the ADF mechanism along the transport direction. From the sheet document transport position where the leading edge of the sheet document passes through the most downstream position 313 where the sheet scan can be restarted immediately before the document reading position 312, the rear end of the sheet document is shifted to the reading position 312
In the area up to the sheet document transport position that reaches, that is, whether there is no sheet document in the area where the image is actually read, that is, whether there is no sheet document that has actually been interrupted judge.

For this purpose, a read confirmation flag is set in a predetermined storage area of the RAM 103. This reading confirmation flag is turned on when the leading edge of the sheet document being conveyed during the sheet scanning operation passes the sheet scanning restartable lowest downstream position 313 immediately before the sheet document reading position 312, and the trailing edge of the sheet document is When the reading position 312 is reached, it is turned off. That is, the reading confirmation flag is turned on when the sheet document exists in the area where the image is actually read in the document conveyance path of the ADF mechanism 300, that is, when the sheet document is actually being read, and is present in the area. If not, that is, if the reading has already been completed normally or the reading has not been started yet, it is turned off.

Next, the details of the control operation of the CPU 101 during sheet scanning will be described with reference to FIGS. Figures 5 and 6
10 is a flowchart illustrating a control procedure of the CPU 101 at the time of sheet scanning, and a control program corresponding to the flowchart is R.
It is stored in the OM 102 and executed by the CPU 101. The control program is a multitask OS control program using a time slice method or the like.
5 and 6 are always executed as tasks. In FIGS. 5 and 6 and in the following description, “S” added to a number is an abbreviation for “step”.

In the process of FIG. 5, first, in step S501, the process of FIG.
Steps 601 to 603 are performed. This process is a process of turning off the above-described reading confirmation flag depending on whether or not the sheet document has been removed from the sheet document conveying path of the ADF mechanism 300.

That is, first, in S601, it is checked whether or not the ADF document cover sensor 314 is on (the ADF cover 317 is opened) and the reading timing sensor 305 is off (the sheet document is not detected). If not, the process proceeds to S502, but if so, it is determined that the sheet document has been removed from the sheet document conveying path of the ADF mechanism 300, the reading confirmation flag is turned off (numerical value of 0) in S602, and the sheet document is further cleared in S603. AD
Display of a warning error message urging the operator to remove the sheet from the sheet document conveying path of the F mechanism 300 (S5 to be described later).
04 is displayed on the operation / warning display means 409). Then, the process proceeds to S502.

In step S502, it is determined whether there is a sheet scan start request. The sheet scan start request is generated when a scan start key (not shown) on the operation unit 115 is pressed and the reading determination unit 404 determines that a sheet document is to be read. If there is no sheet scan start request, the process returns to step S501, and step S50 is performed.
The process of step 1502 is repeated until a sheet scan start request is generated. If there is a sheet scan start request, the process moves to S503.

In step S503, it is determined whether or not the reading confirmation flag in the RAM 103 in which the storage area is previously reserved for the control program is off (on).
4 is performed, and if OFF, the process of S505 is performed.

In step S504, a warning error message urging the operator to remove the sheet document, for example, "Please remove the document." From the sheet document conveying path of the ADF mechanism 300 is displayed on the operation / warning display means 409. Then, the process proceeds to S506.

In step S505, it is determined from the output of the document detection sensor 302 whether or not the sheet document 301 is present in the paper feed port 315 of the ADF mechanism 300.
The process of 507 is performed, and if not, the process of S506 is performed.

In step S506, as an end process, if a document transport motor (not shown) for transporting the sheet document in the sheet document transport unit 408 is in operation, the motor is stopped, and the process proceeds to S501. If the original conveyance motor has already stopped, the process proceeds to S501 without doing anything.

In step S507, if CS is not at the sheet original reading position 312, the scanner control means 411 moves CS to that position 312. If the above-mentioned document conveyance motor is stopped, it is started and the conveyance of the sheet document is started.

Next, in step S508, it is determined whether the reading timing sensor 305 is ON, that is, whether a sheet document has been detected (strictly, whether the leading edge of the sheet document has been detected). The processing of S512 is performed, and if not detected, the processing of S512 is performed.
Here, when the reading timing sensor 305 detects the leading edge of the sheet document, the timer 406 (the timer 10
By 8), the counting of the elapsed time T from when the leading edge of the sheet document has passed the position of the reading timing sensor 305 is started.

In step S 509, the elapsed time T measured by the time counting unit 406 is set to a predetermined value after the leading edge of the sheet document being conveyed, which is mechanically determined in advance, passes the position of the reading timing sensor 305. It is determined whether or not the time required to proceed to the startable downstream position 313 is longer than T1, that is, whether or not the leading edge of the sheet document being conveyed has passed the position 313, and if T is larger than T1. Perform the process of S510, and T becomes T1
If not, the process of S512 is performed.

In step S510, the reading confirmation flag is turned on, and then the process in step S511 is performed.

In step S 511, the elapsed time T is required for the leading edge of the currently transported sheet document to pass through the position of the reading timing sensor 305 and advance to the sheet document reading position 312. Time T2
Is determined, that is, whether the leading edge of the sheet document being conveyed has reached the sheet document reading position 312, and if T and T2 are equal, the process of S513 is performed.
If T and T2 are not equal, the process of S512 is performed.

In step S512, it is determined whether a sheet scan interruption factor has occurred (for example, a stop key on the operation unit 115 has been pressed, a sheet document jam has been detected, or a recording sheet jam has been detected by the printer 117 in the copy mode). It is determined whether or not a sheet scan interruption factor has occurred. If a sheet scan interruption factor has occurred, the process of S519 is performed. If no sheet scan interruption factor has occurred, the process returns to S508 and returns to S508.
The following processing is repeated.

In step S513, the CS of the sheet scanner 112 is driven via the scanner control unit 411 to start scanning for reading the image of the sheet document.
4 is performed.

In S514, it is determined whether or not the reading timing sensor 305 has been turned off, that is, whether or not the trailing edge of the conveyed sheet document has passed the position of the sensor 305, and if it has been turned off, the process of S515 is performed. If it is on, the process of S516 is performed. Here, if the reading timing sensor 305 is turned off,
The (time measuring unit 108) starts measuring the elapsed time T 'after the rear end of the sheet document being conveyed has passed the position of the reading timing sensor 305.

In step S515, the elapsed time T 'is determined by the time when the trailing edge of the currently transported sheet document, which is mechanically determined in advance, passes the position of the reading timing sensor 305, and advances to the sheet document reading position 312. Required time T
3 is determined, that is, whether the trailing edge of the sheet document being transported has reached the reading position 312 is determined.
If T ′ and T3 are equal, the process of S517 is performed, and if T ′ and T3 are not equal, the process of S516 is performed.

In step S516, it is determined whether or not a sheet scan interruption factor has occurred. If so, the process in step S519 is performed. If not, the process returns to step S514 to repeat the processes in and after step S514.

In S517, the reading confirmation flag is turned off, and then the process of S518 is performed.

In step S518, the drive of the CS is stopped via the scanner control unit 411 to terminate the scan, and thereafter, the process returns to step S505 to repeat the processes in and after step S505.

In step S519, the document conveyance motor is stopped to stop the conveyance of the sheet document, and the driving of the CS is stopped to interrupt the scanning operation. Thereafter, the flow returns to step S501 to repeat the processing from step S501.

According to the above-described processing, after the sheet scan interrupting factor occurs during the sheet scanning operation, the conveyance of the sheet document is stopped, and the sheet scanning operation is interrupted. When a scan start key is pressed to perform a scan again and a sheet scan start request is issued, and the reading confirmation flag is ON, that is, when the previous sheet scanning operation was interrupted, the sheet document was actually read while the image was being read. Is interrupted, the sheet scanning operation is not resumed, and in the above-described processing of S504, for example, a warning error message urging the operator to remove the sheet document "Remove the document." Is displayed.
Further, when the reading confirmation flag is off, that is, when the actual reading of the image of the sheet document has not been started when the previous sheet scanning operation was interrupted, and when the reading of the image of the sheet document has already been completed normally. If
If there is a sheet document to be read in the processing after S505, the sheet scanning operation is restarted.

Therefore, when the operator resumes the sheet scanning operation after the interruption of the sheet scanning operation, the operator determines whether it is necessary to remove the sheet original from the original conveying path of the ADF mechanism and set it again. It can be recognized from the presence or absence, and if necessary, the sheet document can be removed and set again. Also, when unnecessary, the sheet scanning operation can be resumed as it is, which eliminates the unnecessary work of removing and re-setting the sheet document, which is not originally necessary, as in the past, and the normal scanning There is no need to re-set the completed sheet document and scan the same sheet document twice. That is, it is possible to surely and quickly restart the sheet scanning operation.

Although the embodiment of the facsimile apparatus has been described above, for example, a copying machine that reads image data of a document and performs only copying, and a scanner device that reads image data of a document and inputs the document to a computer may be used. Needless to say, the above-described technique of the present invention can be applied to all data reading apparatuses.

[0078]

As is apparent from the above description, according to the present invention, the original is automatically conveyed along the reading position of the image reading means to read the image of the original, and the reading interruption factor during the reading operation. When the reading operation is resumed after the reading operation is interrupted in the image reading apparatus in which the conveyance of the document is stopped and the reading operation is interrupted when the error occurs, the operator needs to remove the document from the document conveying path and set it again. Then, if necessary, the original can be definitely removed and set again. When not necessary, the reading operation can be resumed as it is, and the reading operation can be normally completed without unnecessary unnecessary work of removing and re-setting the document although it is not originally necessary. There is no need to set the original again and read the same original twice. Accordingly, an excellent effect is obtained that the reading operation of the image of the document can be surely and quickly restarted.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a hardware configuration of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the overall appearance of the apparatus.

FIG. 3 is a cross-sectional view illustrating a configuration around an ADF mechanism of a sheet reading unit of the apparatus.

FIG. 4 is a block diagram illustrating a functional configuration of a control system of the apparatus.

FIG. 5 is a flowchart illustrating a control procedure related to interruption and restart of a sheet scanning operation in the apparatus.

FIG. 6 is a flowchart showing details of S501 in FIG. 5;

FIG. 7 is an explanatory diagram showing a memory map of a ROM of the device.

[Explanation of symbols]

101 CPU 102 ROM 103 RAM 104 Image Memory 105 Resolution Conversion Processing Unit 106 Encoding / Decoding Processing Unit for Communication 107 Encoding / Decoding Processing Unit for Reading / Recording 108 Clocking Unit 109 Modem 110 NCU 111 Image Processing Unit 112 Sheet Scanner 113 Book Scanner 114 Line buffer 115 Operation unit 116 Printer formatter 117 Printer 118 Communication line 201 Operation unit 202 ADF mechanism unit 203 Sheet reading unit (book document pressing cover) 204 Recording paper discharge unit 300 ADF mechanism 301 Sheet document 302 Document detection sensor 303 Transport roller 304, 306 Document feed roller 305 Read timing sensor 307 Separation roller 308 Paper discharge roller 309 Document table 310 Book document reading start position 311 Book document cover open / close sensor 312 Sheet document reading position 313 Lowermost downstream position where sheet scan can be restarted 314 ADF cover sensor 315 Paper feed port 316 Paper discharge port 317 ADF cover 401 Read selection operation means 402 Sheet document detection means 403 Book document Holding cover opening / closing detecting means 404 Reading determining means 405 Page counting means 406 Timing means 407 Control means 408 Sheet document conveying means 409 Operation / warning display means 410 Book document reading display means 411 Scanner control means

Claims (9)

[Claims] 1. A document is automatically conveyed along a reading position of an image reading means to read an image of the document, and when a reading interruption factor occurs during the reading operation, the conveyance of the document is stopped to interrupt the reading operation. In the image reading apparatus, after a reading operation is interrupted due to the occurrence of the reading interruption factor, when a reading start request for resuming the reading operation is issued, the document is read without removing the document from the document conveying path along the reading position. It is determined whether or not the operation can be resumed.If it is determined that the operation can be resumed, the reading operation is resumed.If it is determined that the operation cannot be resumed, the document is removed from the document transport path without restarting the reading operation. An image reading apparatus comprising: a control unit that outputs warning information prompting an operator. 2. After outputting the warning information, the control unit determines whether or not the document has been removed from the document conveying path.
2. The image reading apparatus according to claim 1, wherein when it is determined that the warning information has been removed, the output of the warning information is canceled. 3. A control device according to claim 1, wherein when a reading start request for resuming the reading operation is generated after the reading operation is interrupted due to the occurrence of the reading interrupting factor, the control unit controls the document conveying path along the document conveying direction. Depending on whether or not a document exists between a document transport position where the leading edge of the document passes a predetermined position immediately before the reading position and a document transport position where the trailing edge of the document reaches the reading position, the document is transported by the document transporter. 2. The method according to claim 1, wherein it is determined whether the reading operation can be restarted without removing the reading operation from the road.
Or the image reading device according to 2. 4. A document is automatically conveyed along a reading position of an image reading means to read an image of the document, and when a reading interruption factor occurs during the reading operation, the conveyance of the document is stopped to interrupt the reading operation. In the control method of the image reading device, after the reading operation is interrupted due to the occurrence of the reading interruption factor, when a reading start request for resuming the reading operation is generated, the document is removed from the document conveying path along the reading position. It is determined whether or not the reading operation can be resumed without reading the document.If it is determined that the reading operation can be resumed, the reading operation is resumed. A method of controlling an image reading apparatus, comprising outputting warning information for urging an operator to remove the warning information. 5. The method according to claim 4, wherein after outputting the warning information, it is determined whether or not the document is removed from the document conveying path, and when it is determined that the document is removed, the output of the warning information is canceled. The control method of the image reading device described in the above. 6. When a reading start request for resuming the reading operation is generated after the reading operation is interrupted due to the occurrence of the reading interruption factor, the reading operation is performed immediately before the reading position along the document conveying direction in the document conveying path. The document is not removed from the document transport path depending on whether or not there is a document between the document transport position where the leading edge of the document passes through the predetermined position and the document transport position where the trailing edge of the document reaches the reading position. 6. The method according to claim 4, wherein it is determined whether the reading operation can be restarted. 7. A document is automatically conveyed along a reading position of an image reading means to read an image of the document, and when a reading interruption factor occurs during the reading operation, the conveyance of the document is stopped to interrupt the reading operation. In a storage medium readable by a computer storing a control program of the image reading apparatus, after a reading operation is interrupted due to the occurrence of the reading interruption factor, when a reading start request for resuming the reading operation is generated, the original is read. It is determined whether or not the reading operation can be resumed without removing the document from the document conveyance path along the reading position.If it is determined that the reading operation can be resumed, the reading operation is restarted. Warning information to prompt the operator to remove the document from the document transport path without restarting Storage medium characterized by storing a control program. 8. After outputting the warning information, it is determined whether or not the document is removed from the document conveying path. If it is determined that the document is removed, a control program for canceling the output of the warning information is stored. The storage medium according to claim 7, wherein: 9. When a reading start request for resuming the reading operation is generated after the reading operation is interrupted due to the occurrence of the reading interruption factor, immediately before the reading position along the document conveying direction in the document conveying path. The document is not removed from the document transport path depending on whether or not there is a document between the document transport position where the leading edge of the document passes through the predetermined position and the document transport position where the trailing edge of the document reaches the reading position. 9. The storage medium according to claim 7, wherein a control program for determining whether the reading operation can be restarted is stored in the storage medium.