JP2016219911A - scanner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform appropriate processing according to a user's intention with less operation when stopping reading of a manuscript.SOLUTION: A scanner comprises: a transportation section transporting a manuscript; a reading section executing reading of the manuscript transported; a reception section receiving a stop instruction instructing to stop the reading; and a control section executing processing selected according to the number of times when the reception section receives the stop instruction from processing including first stop processing stopping the reading and transportation and second stop processing stopping the reading and causing the transportation section to discharge the manuscript.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a scanner.

In some cases, the user wants to stop (cancel) the reading for some reason after setting the document on the scanner and starting the reading of the document by the scanner.
As a related technique, there is known an image forming apparatus that stops reading of a document and promptly discharges the document when an instruction to stop reading is received during reading of the document (see Patent Document 1).

JP 2011-234130 A

  When the scanner is instructed to stop reading, it may or may not be appropriate to discharge the document that was the reading target. For example, the document may be damaged by discharging the document whose reading has been stopped. Therefore, it can be said that when the reading of the document is stopped, it is desired that the processing is appropriately selected according to the intuitive judgment and operation by the user.

  The present invention has been made in view of at least such problems, and provides a scanner capable of performing appropriate processing according to the user's intention with a small number of operations when reading of a document is stopped.

  In one aspect of the present invention, the scanner includes a transport unit that transports a document, a reading unit that performs reading of the transported document, and a reception unit that receives a stop instruction that instructs to stop the reading; The reception unit receives the stop instruction from among a process including a first stop process for stopping the reading and the conveyance and a second stop process for stopping the reading and discharging the document to the conveyance unit. And a control unit that executes a process selected according to the number of times.

  According to this configuration, according to the number of stop instructions by the user, the reading and conveyance of the document are stopped (first stop process), the reading of the document is stopped and the conveyance is continued, that is, the document is discharged (second stop process). And an appropriate process is selected from the processes including and executed. Therefore, the reading stop process in a manner desired by the user is realized by an intuitive and simple operation by the user.

In one aspect of the present invention, the control unit selects and executes the first stop process when the reception unit receives the first stop instruction, and the reception unit performs the second stop. When the instruction is accepted, the second stop process may be selected and executed.
According to this configuration, when the first stop instruction is given, the first stop process is selected to avoid the occurrence of document damage, and then the document is discharged according to the user's intention thereafter. it can.

One aspect of the present invention is that the control unit selects and executes the first stop process when the reception unit receives the first stop instruction, and executes the first stop process. The second stop process may be selected and executed when a predetermined time has passed without accepting a predetermined operation from the outside in a state of being.
According to this configuration, when the first stop instruction is issued, the first stop process is selected to avoid the occurrence of damage to the original document. Then, when there is no predetermined operation from the user, the damage The document can be discharged assuming that no occurrence occurs.

In one aspect of the present invention, the control unit selects and executes the second stop process when the reception unit receives the first stop instruction, and the reception unit performs the second stop. The first stop process may be selected and executed when an instruction is received.
According to this configuration, when the first stop instruction is issued, the second stop process is selected and the original is discharged, and then the discharge of the original can be stopped according to the user's intention.

  The technical idea of the present invention can also be realized by something other than a scanner. For example, the present invention includes various categories such as a method (reading method) including a step executed by each configuration of the scanner, a computer program that causes a computer to execute the method, and a computer-readable storage medium that stores the program. May be realized.

The block diagram which illustrates the principal part of a scanner simply. 6 is a flowchart according to the first embodiment. The figure which illustrates the original document conveyed from a conveyance path | route from upper direction. The flowchart concerning 2nd Embodiment. The other flowchart concerning 2nd Embodiment. The flowchart concerning 3rd Embodiment. The other flowchart concerning 3rd Embodiment.

Embodiments of the present invention will be described below with reference to the drawings.
1. First Embodiment FIG. 1 schematically illustrates a main part and the like of a scanner 10 according to the present embodiment. The scanner 10 is an apparatus having at least a reading function for optically reading a document irradiated by a light source. Therefore, the scanner 10 may be a product having a plurality of functions such as a printing function and a facsimile communication function (so-called multifunction machine) in addition to the reading function.

  The scanner 10 includes a transport unit 11 that transports a document P, a reading unit 12 that executes reading of the transported document P, a reception unit 13 that receives a stop instruction that instructs to stop reading of the document P, and behaviors of each unit of the scanner 10. The control part 14 for controlling is included. The control unit 14 includes, for example, an IC having a CPU, a ROM, a RAM, and other storage media. In the control unit 14, the CPU controls the behavior of each unit of the scanner 10 by executing arithmetic processing according to a program stored in the ROM or the like using the RAM or the like as a work area, thereby realizing a reading function or the like. .

  The document P is transported along the transport path R by the transport unit 11 from a state of being placed on a tray (not shown) on the upstream side of the transport path R. In FIG. 1 and FIG. 3 described later, a part of the transport route R is illustrated by a two-dot chain line arrow. The transport unit 11 includes, for example, a transport motor (not shown) for rotating the roller 16 including a roller 16 that transports the document P along the transport path R by rotating while sandwiching the document P, and a transport motor. A gear train (not shown) for transmitting the power of the motor to the roller 16 is provided. The driving of the transport motor is controlled by the control unit 14. In addition to the roller 16, the transport unit 11 may have other rollers for transporting the document P at each location on the transport path R, but such other rollers are omitted in FIG. 1. The material of the document P is typically paper, but may be a material other than paper as long as the material can be transported by the transport unit 11 and can be read by the reading unit 12.

  In the middle of the transport path R (predetermined position), the reading unit 12 is disposed. The reading unit 12 includes, for example, a linear image sensor whose longitudinal direction is a direction orthogonal to the transport path R. As the image sensor, a contact image sensor (CIS), a CCD image sensor, or the like is employed. As illustrated in FIG. 1, the reading unit 12 may be provided in a pair so as to sandwich the conveyance path R. In this way, by configuring the reading unit 12 as a pair, the front surface and the back surface of the conveyed document P can be simultaneously read. The document P that has been completely read by the reading unit 12 is continuously conveyed and discharged from the discharge port 18 on the downstream side of the conveyance path R.

  The control unit 14 inputs an electrical signal as a result of reading the document P by the reading unit 12. The control unit 14 performs necessary image processing on the electric signal input from the reading unit 12 to generate image data in a predetermined format. The control unit 14 can transmit the generated image data to the external device 20.

  The external device 20 is a device that can instruct the scanner 10 to read the original P while being able to communicate with the scanner 10 in a wired or wireless manner. For example, a PC (personal computer), a smartphone, a tablet terminal, or the like is available. Applicable. A driver D (scanner driver) for driving the scanner 10 is mounted on the external device 20. The user can set conditions (scanning conditions) when the scanner 10 reads the document P through the driver D by operating the external device 20. Examples of the scan condition include reading in either color or monochrome, the size of the original P, the reading resolution, the format of the image data, and the like. The scanner 10 executes reading of the document P in accordance with setting of scanning conditions by the driver D, generates image data, and transmits the generated image data to the external device 20. The scanner 10 can also communicate with a plurality of external devices 20 via a network.

  The reception unit 13 receives the stop instruction from the user. Specifically, the reception unit 13 receives a stop instruction from the user by detecting the depression of the stop button 15 provided in the housing of the scanner 10. The result of acceptance by the acceptance unit 13 is notified to the control unit 14.

FIG. 2 is a flowchart showing a part of processing executed after the control unit 14 starts transporting the document P by the transport unit 11 in response to a scan start instruction from the user.
The control unit 14 causes a scan operation to be executed (step S100). The scanning operation is a general term for operations including a series of conveyance until the discharge of the document P by the conveyance unit 11 and reading of the document P by the reading unit 12 during the conveyance. Further, the control unit 14 determines whether or not the scanning operation for the document P is completed (step S110).

  If it is determined in step S110 that the scanning operation has been completed, the control unit 14 ends the flowchart. On the other hand, when it is determined in step S110 that the scanning operation has not been completed, the control unit 14 determines whether or not the reception unit 13 has received a stop instruction (step S120).

  If it is determined in step S120 that a stop instruction has not been received, the control unit 14 continues the scanning operation (step S100). On the other hand, when it determines with having received the stop instruction | indication in step S120, the control part 14 progresses to determination of step S130.

  In step S130, the control unit 14 selects either the first stop process or the second stop process according to the type of the document P. If the first stop process is selected, the process proceeds to step S140. If the second stop process is selected, the process proceeds to step S150. Schematically, the control unit 14 selects the first stop process (step S140) if the type of the document P corresponds to a predetermined type that is likely to be damaged when the conveyance is continued. If it does not correspond to the predetermined type easily, the second stop process (step S150) is selected. Steps S140 and S150 will be described first, assuming that a method for selecting a stop process according to the type of document P will be described later with some specific examples (Examples 1 to 4).

  In step S140, the control unit 14 executes a first stop process for stopping the reading and conveyance of the document P. That is, if the reading unit 12 is currently reading the original P, the reading unit 12 is instructed to stop the reading, and the conveyance unit 11 is instructed to stop the conveyance of the original P. As a result, the reading and conveyance of the document P are stopped (the scanner 10 is in a kind of error state), and the flowchart is ended. If the reading unit 12 is not currently reading the original P, the reading unit 12 is not instructed to read, and the conveying unit 11 is instructed to stop conveying the original P. In this case, the user can release the error state by taking out the document P that has stopped being transported from the transport path R and the like, and can read the document P again from the beginning.

  On the other hand, in step S <b> 150, the control unit 14 executes a second stop process that stops reading the document P and causes the transport unit 11 to discharge the document P. That is, if the reading unit 12 is currently reading the original P, the reading unit 12 is instructed to stop the reading, and the conveyance unit 11 continues to convey the original P. If the reading unit 12 is not currently reading the original P, the reading unit 12 is not instructed to read, and the conveying unit 11 continues to convey the original P. As a result, the reading of the document P is stopped, and the document P is directly discharged from the discharge port 18, and the flowchart is ended. In this case, the user can read the discharged document P again from the beginning.

Next, a method for selecting a stop process corresponding to the type of document P will be described with reference to the first to fourth embodiments.
Example 1
As an example of the type of the original, there is a difference in the original length which is the length of the original P along the conveyance direction. That is, in step S130, the control unit 14 selects the first stop process as falling under the predetermined type if the document length is equal to or greater than a first threshold value set in advance as a threshold value related to the document length. If the document length is less than the first threshold value, the second stop process is selected.

  FIG. 3 is a diagram illustrating the document P transported along the transport path R from above. In FIG. 3, a direction D <b> 1 is a direction of the conveyance path R, and a direction D <b> 2 is a longitudinal direction of the linear image sensor included in the reading unit 12. The direction D1 and the direction D2 are orthogonal. In principle, the document P is transported by the transport unit 11 in parallel with the direction D1. In the example of FIG. 3, the length of the first side E1 that is a side parallel to the direction D1 among the first side E1 and the second side E2 of the rectangular document P corresponds to the document length. Of course, since the direction of the original P actually conveyed may have a slight inclination (skew) with respect to the direction D1, the direction D1 and the first side E1 are strictly parallel. Not exclusively. In the present embodiment, based on the current situation where there is such a skew, the side having the smaller angle difference from the direction D1 between the first side E1 and the second side E2 (the first side E1 in the example of FIG. 3). Is called the length of the document P along the conveyance direction, that is, the document length.

  Since the control unit 14 recognizes the size of the document P in advance based on the setting condition of the scanning condition by the driver D described above, the document length can be specified from the information on the size of the document P. For example, if the size of the document P is set to A4, the control unit 14 can specify the document length as 297 mm in consideration of the determined orientation of the document P when being set on the tray. . When the document length is relatively long, damage to the document P due to skew or paper jam is more likely to occur during conveyance (or damage is likely to increase) than when the document length is short. That is, when the user gives a stop instruction during the scanning operation of the relatively long document P (presses the stop button 15), the user gives a stop instruction because the user instantaneously feels the possibility of damage to the document P. The possibility is high. Therefore, in the first embodiment, when the document length of the document P to be scanned is relatively long (the document length is equal to or greater than the first threshold value), the document P is read when a stop instruction is issued. In addition, the conveyance is stopped, and the original P is prevented from being damaged by further conveyance. When the document P is less likely to be damaged and the document length of the document P to be scanned is relatively short (the document length is less than the first threshold value), a stop instruction is issued. The reading of the original P is stopped and the conveyance of the original P is continued so that the user can proceed to the next operation such as rescanning.

  However, in the first embodiment, when the document length is unknown at the time of step S130, the control unit 14 regards the document length as being equal to or greater than the first threshold value. The unknown document length indicates a case where the size of the document P is not set directly or indirectly in the scanning conditions. In such a case, since it is not known whether the document length is equal to or greater than the first threshold value, the control unit 14 determines that the document length is equal to or greater than the first threshold value from the viewpoint of preventing damage to the document P. The first stop process is selected and executed.

  Even when the size of the document P is not set in the scan conditions, the scanner 10 has a sensor (document size detection sensor) that can detect the size of the document P placed on the tray. In such a case, the control unit 14 can specify the document length from the detection result of the document size detection sensor. In this case, the document length is not unknown at the time of step S130.

Example 2
As an example of the type of the document, there is a difference in the remaining document length that is the length of the document P that is not read by the reading unit 12. That is, in step S130, if the remaining document length is equal to or greater than a second threshold value set in advance as a threshold value related to the remaining document length, the control unit 14 performs the first stop process as falling under the predetermined type. If the remaining document length is less than the second threshold value, the second stop process is selected.

  Referring to FIG. 3, the length E11 of the range existing on the upstream side of the conveyance path R from the reading unit 12 in the first side E1 of the document P can be set as the remaining document length. Various methods for specifying the remaining document length are conceivable. For example, the control unit 14 specifies the front end position of the document P on the transport path R at the current time according to the rotation amount of the transport motor after the transport unit 11 starts transporting the document P. Then, the control unit 14 determines the remaining document length at the present time based on the tip position, the position of the reading unit 12 on the predetermined conveyance path R, and the document length information specified as described above. Can be identified. Depending on the timing at which the user issues a stop instruction (the timing at which it is determined in step S120 that the stop instruction has been received), the remaining document length may be equal to the document length or may be zero. Such a remaining document length depends on the timing at which the user issues a stop instruction, but also depends on the size of the document P (document length). Therefore, in the present embodiment, an example of the document type is used. Treat as.

  If the remaining length of the original is relatively long, a large amount of conveyance is required until the original P is discharged after that, so that the original P is likely to be damaged due to skew or paper jam (or damage is likely to increase). On the other hand, if the remaining document length is relatively short, the amount of conveyance required until the document P is subsequently discharged is small, so that the possibility of damage to the document P due to skew or paper jam is low. That is, when the user gives a stop instruction when the remaining length of the document is relatively long (presses the stop button 15), the user gives a stop instruction because the user instantaneously feels the possibility of damage to the document P. It is highly possible. Therefore, in the second embodiment, when the stop instruction is given and the remaining document length of the document P to be scanned is relatively long (the remaining document length is equal to or greater than the second threshold value), the document The reading and conveyance of P are stopped, and the original P is prevented from being damaged by further conveyance.

  However, in the second embodiment, the control unit 14 cannot specify the remaining document length if the document length is unknown at the time of step S130. As described above, when the document length is unknown, that is, it is not known whether the remaining document length is equal to or larger than the second threshold value, the control unit 14 determines the remaining document length from the viewpoint of preventing damage to the document P. The length is considered to be greater than or equal to the second threshold value, and the first stop process is selected and executed. If the scanner 10 has a document size detection sensor, the control unit 14 can specify the document length from the detection result of the document size detection sensor. In this case, the document length is not unknown.

Example 3
As an example of the type of the document, there is a difference in the ratio of the document length to the document width (= document length / document width) which is the length of the document P along the direction intersecting the transport direction. That is, in step S130, the control unit 14 selects the first stop process as falling under the predetermined type if the ratio is equal to or greater than a third threshold value set in advance as a threshold value related to the ratio, If the ratio is less than the third threshold value, the second stop process is selected.

  Referring to FIG. 3, the length of the second side E2 of the document P corresponds to the length of the document P along the direction (direction D2) intersecting the transport direction (direction D1), that is, the document width. The control unit 14 can specify the ratio based on the information on the size of the document P set as one of the scanning conditions and the determined orientation of the document P when set on the tray. . Even when the size of the document P is not set in the scan conditions, if the scanner 10 has the document size detection sensor, the control unit 14 may detect the document size detection sensor. The ratio can be specified from the detection result by. This ratio may be called the aspect ratio or aspect ratio of the document P. In the description of the third embodiment, for the sake of convenience, the document length is the vertical length of the document P.

  If the ratio of the document P is a large value, that is, if the document P has a comparatively long shape, the document P is likely to be damaged due to skew or paper jam because the posture is difficult to stabilize during conveyance (or Damage is easy to spread). That is, when the user gives a stop instruction (pressing the stop button 15) during the scanning operation of the document P having a relatively long shape, the user instantaneously feels that the document P may be damaged. It can be said that there is a high possibility that a stop instruction was issued. Therefore, in the third embodiment, when the ratio of the document P to be scanned is relatively large (the ratio is equal to or greater than the third threshold value), the document P is read when a stop instruction is issued. In addition, the conveyance is stopped, and the original P is prevented from being damaged by further conveyance.

  However, in the third embodiment, the control unit 14 does not know whether the document length is unknown (the ratio is unknown) at the time of step S130, that is, whether the ratio is equal to or greater than the third threshold value. In this case, from the viewpoint of preventing the document P from being damaged, the ratio is considered to be equal to or greater than the third threshold value, and the first stop process is selected and executed. If the scanner 10 has a document size detection sensor, the control unit 14 can specify the document length from the detection result of the document size detection sensor. In this case, the document length is not unknown.

Example 4
An example of the type of the document is a difference in thickness of the document P. That is, in step S130, the control unit 14 selects the second stop process if the thickness of the document P is equal to or greater than a fourth threshold value that is predetermined as a threshold value related to the thickness, and the thickness is If it is less than the fourth threshold value, the first stop process is selected as corresponding to the predetermined type.

  The control unit 14 can specify the thickness of the document P according to information on the type of the document P (the type such as plain paper, postcard, business card, etc.) set as one of the scanning conditions. Further, even when information indicating the thickness of the document P directly or indirectly is not set in the scanning conditions, the scanner 10 can detect the thickness of the document P (document thickness). In the case of having a detection sensor), the control unit 14 can specify the thickness of the document P from the detection result of the document thickness detection sensor.

  The sensor 17 illustrated in FIG. 1 on the downstream side of the transport path R from the roller 16 is an example of a document thickness detection sensor. Specifically, the sensor 17 is an ultrasonic sensor that can detect double feeding of the document P by the transport unit 11. Double feeding means that a plurality of originals P are conveyed in an overlapped state. The sensor 17 has a transmitter and a receiver that are opposed to each other with the conveyance path R in between, and the receiver receives attenuation of ultrasonic waves by the original P that passes between the transmitter and the receiver. By detecting it, the presence or absence of double feeding is detected. At the same time, the sensor 17 detects the thickness of the single-feed original P based on the attenuation of the ultrasonic wave by the original P when the single-feed (conveyance of one original P) is detected. Therefore, the control unit 14 can acquire the thickness of the document P based on the single-feed detection by the sensor 17. The control unit 14 can stop the conveyance of the document P by the conveyance unit 11 when the sensor 17 detects double feeding. Alternatively, when the document P passes between a pair of rollers 16 that are pressed against each other, the distance between the rollers 16 increases by the thickness of the document P. A sensor for measuring the distance between the rollers 16 may be employed as the document thickness detection sensor.

  If the document P is a relatively thin medium (for example, plain paper), the document P is likely to be damaged (or damaged easily) due to skew or paper jam during conveyance. On the other hand, if the document P is a relatively thick medium (for example, a business card or a plastic card), such damage is unlikely to occur. That is, when the user gives a stop instruction (scan button 15 is pressed) during the scanning operation of the relatively thin original document P, the user instantaneously feels the possibility of the document P being damaged and stops. It can be said that there is a high possibility that Therefore, in the fourth embodiment, when the thickness of the document P to be scanned is relatively thin (thickness is less than the fourth threshold value), the document P is read when a stop instruction is issued. In addition, the conveyance is stopped, and the original P is prevented from being damaged by further conveyance.

  However, in the fourth embodiment, the control unit 14 determines that the thickness of the document P is not specified at the time of step S130 (the thickness of the document P is unknown), that is, the thickness is the fourth threshold value. If it is not known whether or not the thickness is less than, from the viewpoint of preventing damage to the document P, the thickness is considered to be less than the fourth threshold value, and the first stop process is selected and executed.

  As described above, according to the present embodiment, when the receiving unit 13 receives a stop instruction from the user, the control unit 14 stops the first stop process for stopping the reading and conveyance of the document P and the reading of the document P. Then, one process selected according to the type of the document P is executed from among the processes including the second stop process for discharging the document P to the transport unit 11. Therefore, the reading of the original P can be appropriately stopped with few operations by the user while avoiding the damage of the original P as described above. The process including the first stop process and the second stop process means that there are at least options of the first stop process and the second stop process. Therefore, this embodiment does not deny the existence of options different from the first stop process and the second stop process. For example, a process of returning the original P in the middle of conveyance to the upstream side of the conveyance path R by reversely rotating the conveyance motor while stopping the reading of the original P may be called a third stop process. When the receiving unit 13 receives a stop instruction from the user, the control unit 14 selects one process selected according to the type of the document P from the first stop process, the second stop process, and the third stop process. May be executed.

  In this embodiment, in step S130, both the case where only one of Examples 1 to 4 is employed and the case where a plurality of examples included in Examples 1 to 4 are employed in combination are employed. Disclose. In the case of adopting a combination of the plurality of embodiments, the control unit 14, for example, the document length, the remaining document length, the ratio and the thickness of the document P, and the corresponding threshold values (first to fourth values). As a result of the comparison with the threshold value), when it is determined that the first stop process is selected in one or more comparison results, the first stop process may be selected. Or, conversely, as a result of comparing the document length, the remaining document length, the ratio and the thickness of the document P with the corresponding threshold values (first to fourth threshold values), all the comparison results are the first. When it is determined that one stop process is selected, the first stop process may be selected.

2. Second Embodiment Next, a second embodiment will be described. In the second and subsequent embodiments, descriptions of items that are already described are omitted as appropriate. In the second embodiment, the control unit 14 receives a stop instruction from the process including the first stop process and the second stop process (for example, further including the third stop process and the like). The process selected according to the number of times is executed.

FIG. 4 is a flowchart showing a part of processing executed after the control unit 14 starts conveying the document P by the conveying unit 11 in the second embodiment in response to a scan start instruction from the user. Steps S200 to S220 are the same as steps S100 to S120.
If it is determined in step S220 that a stop instruction has been received, the control unit 14 proceeds to step S230.

  In step S230, the control unit 14 selects and executes the first stop process. That is, if the reading unit 12 is currently reading the original P, the reading unit 12 is instructed to stop the reading, and the conveyance unit 11 is instructed to stop the conveyance of the original P. As a result, the reading and conveyance of the original P are stopped (the scanner 10 enters a kind of error state). Hereinafter, for the sake of convenience, the stop instruction in which the control unit 14 recognizes reception in step S220 is referred to as a first stop instruction.

  In step S240, the control unit 14 determines whether or not the receiving unit 13 has received a further stop instruction after step S230. If it is determined in step S240 that a stop instruction has not been received, the control unit 14 proceeds to step S250. If it is determined that a stop instruction has been received, the control unit 14 proceeds to step S270. Hereinafter, for the sake of convenience, the stop instruction in which the control unit 14 recognizes reception in step S240 is referred to as a second stop instruction.

  In step S250, the control unit 14 determines whether or not an operation for canceling the current error state (error canceling operation) has been performed. If the error canceling operation has been performed, the control unit 14 ends the flowchart, If the error canceling operation has not been executed, the process proceeds to step S260. The error canceling operation refers to an operation for the user to take out the document P that has stopped being transported from the transport path R as described in the first embodiment. For example, the user manually opens the document R that stops in the middle of the conveyance path R by opening a part of the casing of the scanner 10, and then closes a part of the casing to complete the error release operation. Can be made.

  In step S260, the control unit 14 determines whether or not a predetermined time (for example, several minutes) has elapsed after recognizing the first stop instruction. If the predetermined time has not elapsed, the process proceeds to the determination in step S240. If the predetermined time has passed, the process proceeds to step S270. That is, after the first stop instruction, when the predetermined time has passed without the second stop instruction and the error canceling operation, the control unit 14 proceeds to step S270.

  In step S270, the control unit 14 selects and executes the second stop process. However, in this case, the reading of the document P has already been stopped by the first stop process (step S230). Therefore, there is no need to stop the reading of the original P again, and the conveyance of the original P is restarted by restarting the stopped conveyance unit 11 and the original P is discharged from the discharge port 18. Thereby, the state (error state) in which the first stop process is executed is canceled.

  As described above, according to the second embodiment, when the receiving unit 13 receives a first stop instruction from the user, the control unit 14 executes the first stop process for stopping the reading and conveyance of the document P. First, it is avoided that the original P is damaged by the conveyance. When the receiving unit 13 receives a second stop instruction from the user in such a state, the control unit 14 considers that the user has allowed the conveyance of the original P and executes the second stop process ( The original P is discharged). In addition, the control unit 14 performs a predetermined operation (second stop instruction or error canceling operation) from the outside in a state where the receiving unit 13 receives the first stop instruction and is executing the first stop process. Even when the predetermined time has passed without being accepted, it is considered that the document P is not damaged by the conveyance, and the second stop process is executed (the document P is discharged). That is, an appropriate process is selected and executed from processes including the first stop process and the second stop process according to the number of stop instructions by the user. Therefore, the reading stop process in a manner desired by the user is realized by an intuitive and simple operation by the user.

FIG. 5 shows a part of processing executed after the control unit 14 starts transporting the document P by the transport unit 11 in the second embodiment, and shows a different embodiment from FIG. 4 in a flowchart. Steps S300 to S320 are the same as steps S200 to S220.
If it is determined in step S320 that a stop instruction (first stop instruction) has been received, the control unit 14 proceeds to step S330.

In step S330, the control unit 14 selects and executes the second stop process. That is, if the reading unit 12 is currently reading the original P, the reading unit 12 is instructed to stop the reading, and the conveyance unit 11 continues to convey the original P.
Subsequently, in step S340, the control unit 14 determines whether or not the discharge of the document P by the second stop process has been completed. If it is determined that the discharge of the original P has been completed, the flowchart is ended. On the other hand, if it is determined that the discharge of the original P has not been completed, the process proceeds to step S350.

  In step S350, the control unit 14 determines whether or not the receiving unit 13 has received a further stop instruction after step S330. If it is determined in step S350 that a stop instruction has not been received, the control unit 14 continues to discharge the document P by the second stop process in step S330, while if it is determined that a stop instruction has been received, step S360. Proceed to Hereinafter, for the sake of convenience, the stop instruction in which the control unit 14 recognizes reception in step S350 is also referred to as a second stop instruction.

  In step S360, the control unit 14 selects and executes the first stop process. However, in this case, reading of the original P has already been stopped by the second stop process (step S330). Therefore, there is no need to stop reading the original P again, and the conveyance of the original P is stopped by stopping the operating conveyance unit 11. Thereby, it will be in the state (error state) which performed the 1st stop processing. Thereafter, the user can arbitrarily perform an error canceling operation.

  As described above, according to the embodiment shown in FIG. 5, when the receiving unit 13 receives the first stop instruction from the user, the control unit 14 stops reading the document P and discharges the document P. 2 Stop processing is executed. Thereafter, when the reception unit 13 receives a second stop instruction until the discharge is completed, the discharge of the document P is stopped. When the user presses the stop button 15 once to stop the reading of the original P (when the first stop instruction is given), if the user feels that the original P is damaged, the stop button intuitively 15 may be pressed further (pressed twice). The embodiment shown in FIG. 5 can be said to be convenient for the user because the discharge of the document P can be stopped by such an intuitive operation of the user.

3. Third Embodiment In the third embodiment, a mode in which the first embodiment and the second embodiment described so far are combined will be described.
FIG. 6 is a flowchart showing part of the processing according to the third embodiment. The processing shown in FIG. 6 can be generally understood as a mode in which processing equivalent to steps S240 to S270 in FIG. 4 is combined after step S140 in FIG. That is, the control unit 14 is triggered by the reception unit 13 receiving a stop instruction (“Yes” in step S120 of FIG. 2), and in step S130, the first stop process (step S140) according to the type of the document P Is selected and executed, it is determined whether or not the receiving unit 13 has received a further stop instruction (step S160).

  When it is determined in step S160 that the stop instruction (second stop instruction) has not been received, the control unit 14 proceeds to step S162. On the other hand, when it is determined that the stop instruction (second stop instruction) has been received, The process proceeds to step S166. In step S162, the control unit 14 determines whether or not an error canceling operation for canceling the current error state has been executed. When the error canceling operation is executed, the control unit 14 ends the flowchart, while the error canceling operation is performed. If is not executed, the process proceeds to step S164.

  In step S164, the control unit 14 determines whether or not a predetermined time has elapsed after the first stop instruction (stop instruction recognized in step S120). If the predetermined time has not elapsed, the determination in step S160 is performed. Returning to step S166, if the predetermined time has elapsed, the process proceeds to step S166. In step S166, the control unit 14 selects and executes the second stop process. However, in this case, since the reading of the document P has already been stopped by the first stop process (step S140), the transport of the document P is restarted by restarting the transport unit 11 that has been stopped, and the document P is ejected from the discharge port 18. To drain. As a result, the state (error state) in which the first stop process is executed according to the type of the document P is canceled.

  FIG. 7 shows a part of processing according to the third embodiment, and shows processing different from FIG. 6 in a flowchart. The processing shown in FIG. 7 can be generally understood as a mode in which processing equivalent to steps S340 to S360 in FIG. 5 is combined after step S150 in FIG. That is, the control unit 14 is triggered by the reception unit 13 receiving a stop instruction (“Yes” in step S120 in FIG. 2), and in step S130, the second stop process is performed according to the type of the document P (step S150). After starting and executing, it is determined whether or not the discharge of the document P by the second stop process is completed (step S170).

  When it is determined that the discharge of the document P has been completed, the control unit 14 ends the flow chart. On the other hand, when it is determined that the discharge of the document P has not been completed, the control unit 14 proceeds to step S172. In step S172, the control unit 14 determines whether the receiving unit 13 has received a further stop instruction. If it is determined in step S172 that the stop instruction (second stop instruction) has not been received, the control unit 14 continues the discharge of the document P by the second stop process in step S150, while the stop instruction (second time instruction) If it is determined that a stop instruction) has been received, the process proceeds to step S174.

  In step S174, the control unit 14 selects and executes the first stop process. However, in this case, since the reading of the document P has already been stopped by the second stop process (step S150), the transport of the document P is stopped by stopping the operating transport unit 11. Thereby, it will be in the state (error state) which performed the 1st stop processing. Thereafter, the user can arbitrarily perform an error canceling operation.

According to the third embodiment, after the control unit 14 appropriately selects the first stop process or the second stop process according to the type of the document P in response to the first stop instruction, the control unit 14 further selects the first stop process or the second stop process. The selection of the stop process can be changed according to the intention (second stop instruction or the like).
Although a scanner for conveying a document to be read has been described, the present invention can be applied to other applications. For example, the present invention can be applied to a printing apparatus that conveys a sheet to be printed.

DESCRIPTION OF SYMBOLS 10 ... Scanner, 11 ... Conveyance part, 12 ... Reading part, 13 ... Reception part, 14 ... Control part, 15 ... Stop button, 16 ... Roller, 17 ... Sensor, 18 ... Outlet, 20 ... External device, P ... Original

Claims (4)

A transport section for transporting a document;
A reading unit for reading the conveyed document;
A reception unit that receives a stop instruction for instructing to stop the reading;
The reception unit receives the stop instruction from among a process including a first stop process for stopping the reading and the conveyance and a second stop process for stopping the reading and discharging the document to the conveyance unit. And a control unit that executes a process selected according to the number of times.   The control unit selects and executes the first stop process when the receiving unit receives the first stop instruction, and the second control unit receives the second stop instruction when the receiving unit receives the second stop instruction. The scanner according to claim 1, wherein stop processing is selected and executed.   The control unit selects and executes the first stop process when the receiving unit receives the first stop instruction, and performs a predetermined operation from the outside while the first stop process is being executed. The scanner according to claim 1 or 2, wherein the second stop process is selected and executed when a predetermined time has passed without being accepted.   The control unit selects and executes the second stop process when the accepting unit accepts the first stop instruction, and the control unit receives the first stop instruction when the accepting unit accepts the second stop instruction. The scanner according to claim 1, wherein stop processing is selected and executed.

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