Image displaying apparatus, image displaying method, and image
Contents
1. HAS ME YES DETERMINE DETECTION AS NO BEEN DETECTED BY x MF ERROR AND STORE THAT DETECTION IS DISABLED SENSOR y CALCULATE LENGTH OF DETECTED PAPER FROM UPPER EDGE TO 1 LOWER EDGE COMPARE LENGTH OF DETECTED PAPER AND SA11 REFERENCE LENGTH SA12 IS IT LONGER THAN REFERENCE IS MF DETECTION DUE TO DIFFERENCE IN LENGTHS pg i VALID YES SA13 DETERMINE THIS CASE AS MF ERROR SA14 HAS TRANSFER OF IMAGE DATA TO PC BEEN COMPLETED g HAS MF ERROR NOTIFY PC OF MF ERROR SA16 OCCURRED i NOTIFY PC OF OUTPUT RESULT MF DETECTION OF US SENSOR AND DETECTED PAPER LENGTH NO IS THERE m NEXT PAPER gg SA17 NO U S Patent Jun 24 2014 Sheet 5 of 8 FIG 5 ACQUIRE IMAGE DATA SB1 ACQUIRE MF ERROR SB2 ACQUIRE RESULT OF MF DETECTION AND PAPER LENGTH SB3 DISPLAY IMAGE AND RESULT OF MF DETECTION OR THE LIKE SB4 US 8 760 678 B2 U S Patent Jun 24 2014 Sheet 6 of 8 US 8 760 678 B2 FIG 6 DETECTION RANGE PAPER LENGTH 308 DIFFERENCE 11 DETECTION fy LOAD LENGTH 297 mm IMAGE DIFFERENCE 0 mm U S Patent Jun 24 2014 Sheet 7 of 8 US 8 760 678 B2 FIG 8 A MA MA2 MA1 PAPER og Tes Se bi IMAGE MA4 MA5 DETECTION RANGE MA2 PAPER uu c he ik 7 LENGTH MA3 IMAGE ND DIFFERENCE 50 MA4 MA5 U S Patent Jun 24 2014 Sheet2. The image reading unit 204 is a mechanism for reading a fed paper by a paper sensor and generating an image of the paper The communication interface 104 communicably connects the information processing apparatus 100 to the image read ing apparatus 200 and other terminals through a communica tion device such as a router and a wired or wireless commu nication line such as a dedicated line The storage unit 106 stores therein various types of data bases tables and files or the like The storage unit 106 is a storage unit which can be a memory device such as RAM Random Access Memory and ROM Read Only Memory a fixed disk drive such as a hard disk a flexible disk and an optical disc or the like The storage unit 106 as shown in this figure stores therein an image data file 106a and an MF detection result file 1065 The image data file 106a stores therein image data for the paper read by the image reading apparatus 200 The MF detection result file 1065 stores therein output results specifically the MF detection range and the like of the US sensor included in the multifeed detecting unit 202 of the image reading apparatus 200 The input output interface 108 connects an input device 112 and an output device 114 to the information processing apparatus 100 Here as the output device 114 a speaker and 20 25 30 35 40 45 50 55 60 65 4 a printer in addition to a monitor including a home use televis
3. and the image reading apparatus is caused to reread the medium Thus there is such an effect that when mediums overlap the operator can easily implement discard of the image and rescan of the medium Although the invention has been described with respect to specific embodiments for a complete and clear disclosure the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art that fairly fall within the basic teaching herein set forth What is claimed is 1 An image displaying apparatus comprising a control unit and a display unit the image displaying apparatus being con nected to an image reading apparatus that includes a multifeed detecting mechanism wherein the control unit includes adisplay controlunit that displays an image ofa medium which is read by the image reading apparatus and in which multifeed is detected by the multifeed detect ing mechanism and a multifeed detected portion which is detected by the multifeed detecting mecha nism and is a portion of the medium on the display unit the multifeed detected portion being displayed on the image and the display control unit displays on the display unit a multifeed detection check screen including an image display area to display the image and the multifeed detected portion and a variable display area to variably display a multifeed detection range includi
4. 204 The multifeed detecting unit 202 is a mechanism for detecting sensing a multifeed MF of a fed paper and includes for example an ultrasonic US sensor hardware for detecting an overlap of papers and the thickness thereof using ultra sonic waves and a processing unit software for detecting whether MF occurs from the output of the US sensor The multifeed detecting unit 202 includes a determining unit 202a and a calculating unit 2025 as processing units When MF is detected by the US sensor the determining unit 202a com pares a portion where the MF is detected with a preset MF detection range including an area or a length where MF detection ofthe US sensor is regarded as valid or including an area or a length where MF detection of the US sensor is regarded as invalid and determines whether the portion is regarded as MF error The calculating unit 2025 calculates a length of the paper a length from an upper edge to a lower edge of the paper from an output result of the US sensor or image data read by the image reading unit 204 When the length ofthe paper is calculated by the calculating unit 2025 the determining unit 202a compares the length and a preset reference length e g a length of a first sheet of paper 10 mm and determines whether the paper is regarded as MF error A specific example ofthe configuration ofthe multifeed detecting unit 202 will be explained in detail later in 1 2 Specific Example of Configuration
5. 45 65 14 shown in the present specification and the drawings can be arbitrarily modified unless otherwise specified The constituent elements of the information processing apparatus 100 shown in the drawings are functionally con ceptual and need not be physically configured as illustrated For example for the process functions provided in the infor mation processing apparatus 100 especially for the process functions performed in the control unit 102 all or any part thereof may be implemented by a CPU and programs inter preted and executed in the CPU and may be implemented as hardware by wired logic The programs are recorded in a recording medium explained later and they are mechanically loaded into the information processing apparatus 100 as required More specifically computer programs to perform various processes are recorded in the storage unit 106 such as ROM or HD Hard Disk The computer programs are executed by being loaded into RAM and form the control unit in cooperation with the CPU The image displaying apparatus according to the present invention may be configured as an information processing apparatus including an information processing apparatus connected with arbitrary peripheral devices such as known personal computer and work station The image displaying apparatus according to the present invention can be achieved by installing software including the programs the data and the like to cause the informat
6. 8 of 8 US 8 760 678 B2 US 8 760 678 B2 1 IMAGE DISPLAYING APPARATUS IMAGE DISPLAYING METHOD AND IMAGE DISPLAYING PROGRAM FOR DETECTING AND DISPLAYING MULTIFEED CROSS REFERENCE TO RELATED APPLICATION This application is based upon and claims the benefit of priority from Japanese Patent Application No 2010 112444 filed on May 14 2010 the entire contents of which are incor porated herein by reference BACKGROUND OF THE INVENTION 1 Field of the Invention The present invention relates to an image displaying appa ratus an image displaying method and an image displaying program for displaying image data in which multifeed is detected by a multifeed detecting function of an image read ing apparatus e g a scanner a copier and a facsimile 2 Description ofthe Related Art In an image reading apparatus image scanner apparatus there is widely used a multifeed detecting function using an ultrasonic sensor that can detect an overlap of papers e g Japanese Patent Application Laid open No 2004 269241 However there is a case where the multifeed detecting func tion erroneously detects a paper with a photo or a sticky note or the like attached thereto as a multifeed As means for avoiding this case United States Patent Application No 2005 0228535 discloses a technology for previously setting a length with which multifeed detection is disabled through a panel on a scanner before reading is started and user manu
7. A and the paper B MF detected by the US sensor is displayed in a color or a pattern or the like 12 A preset MF detection range is displayed in the variable display area MA2 so as to be capable of discriminating the valid area from the invalid area using a color or a pattern or the like It should be noted that the variable display area MA2 shown in FIG 6 is one example in which the MF detection range including only the valid area is set 13 A numerical value of the paper length and a numerical value of a difference between the paper length and the reference length are displayed in the display area MA3 Consequently a source of the MF error can be easily checked on the screen In addition it is easily determined whether the image is loaded or discarded Moreover in a specific case where a paper with an attached seal is determined as MF error by the scanner 200 the display control unit 102a performs the following processes 21 to 23 inanarbitrary order and displays an MF detection check screen MA as shown in FIG 7 on the monitor 114 21 Image data showing the MF detected paper A and a seal B attached to the paper A is displayed in the image display area MA1 Moreover an MF detected area C in the seal B MF detected by the US sensor is displayed in a color ora pattern or the like 22 A preset MF detection range is displayed in the variable display area MA2 so as to be capable of discriminating the valid area from the invalid
8. a level abnormal level less than the ordinary level and the threshold For example before feeding of the paper A the drive IC is controlled so that the reception side ultrasonic sensor 18 detects the signal with the ordinary level in actual cases the signal with a level equal to or more than the ordi nary level More specifically the drive IC is controlled so that the drive frequency of the drive signal coincides with the resonant frequency of the transmission side ultrasonic sensor 17 based on the ultrasonic wave received by the reception side ultrasonic sensor 18 without using the variable resistor The setting unit sets generates a threshold used to detect feeding of a plurality of papers A using an output of the reception side ultrasonic sensor 18 as a reference value when an output of the transmission side ultrasonic sensor 17 is stopped by the drive circuit 41 The threshold is determined by adding a fixed value correction value to the output aver age value of input signals from the reception side ultrasonic sensor 18 of the reception side ultrasonic sensor 18 when an output of the transmission side ultrasonic sensor 17 is stopped More specifically the CPU 26 sensor control unit therein transmits a control signal to the transmission side circuit 41 and causes the oscillation of the transmission side circuit 41 to stop The CPU 26 sensor control unit therein applies a predetermined bias voltage to the amplifier circuit
9. be performed again can be omit ted Moreover in a specific case where MF erroris detected due to a difference in lengths of the papers by the scanner 200 when Step SA13 ofthe main process in the scanner 200 side shown in FIG 4 is performed the display control unit 102a performs the following processes 31 to 33 in an arbitrary US 8 760 678 B2 11 order and displays an MF detection check screen MA as shown in FIG 8 on the monitor 114 31 Image data showing MF detected paper A and paper B is displayed in the image display area MAI 32 A length size of a display area MA2 an area for displaying a paper length and a difference between the paper length and the reference length e g ordinary paper length 10 mm provided instead of the variable display area MA2 is changed to a length corresponding to the paper length and thus the paper length can be recognized on the display Moreover a color or a pattern or the like is applied to a portion specifically a portion longer than the refer ence length corresponding to the difference between the paper length and the reference length in the display area MAZ and thus the difference can be recognized on the display 33 A numerical value of the paper length and a numerical value of a difference between the paper length and the reference length are displayed in the display area MA3 Consequently when a paper of a fixed size is to be fed information for making a decision i
10. executed in the scanner 200 side will be explained with reference to FIG 4 First when MF detection being valid is selected when MF detection is set as valid the multifeed detecting unit 202 of the scanner 200 starts MF detection from the upper edge leading edge of the paper using the ultrasonic US sensor Step SA1 Next the multifeed detecting unit 202 stores output results MF detection results of the US sensor in a memory at certain intervals Step SA2 Next the multifeed detecting unit 202 checks whether MF detection by the US sensor has reached the lower edge ofthe paper When the MF detection has not reached the lower edge No at Step SA3 the multifeed detecting unit 202 performs again Step SA2 Then when the MF detection has reached the lower edge Yes at Step SA3 and when the US sensor further detects MF during the upper edge to the lower edge of the paper Yes at Step SA4 the determining unit 202a of the multifeed detect ing unit 202 compares the output result of the US sensor specifically an MF detected area with a previously specified set detection condition Step SA5 Specifically the deter mining unit 202a 1 determines whether the MF detected area where MF is detected by the US sensor is within a preset valid area or length regarded as valid or invalid area or length regarded as invalid of the MF detection by the US sensor and 2 determines the MF detection performed by the US sensor as valid wh
11. is detected by the multifeed detecting mechanism and a multifeed detected portion detected by the multifeed detecting mecha nism on the display unit Animage displaying method according to one aspect ofthe present invention is implemented by a control unit of an 20 25 30 35 40 45 50 55 60 65 2 image displaying apparatus that includes the control unit and a display unit and is connected to an image reading apparatus including a multifeed detecting mechanism The image dis playing method includes a display controlling step of display inganimage ofa medium which is read by the image reading apparatus and in which multifeed is detected by the multifeed detecting mechanism and a multifeed detected portion detected by the multifeed detecting mechanism on the display unit An image displaying program product according to one aspect of the present invention makes a control unit of an image displaying apparatus that includes the control unit and a display unit and is connected to an image reading apparatus including a multifeed detecting mechanism implement an image displaying method The image displaying method includes a display controlling step of displaying an image of amedium which is read by the image reading apparatus and in which multifeed is detected by the multifeed detecting mechanism and a multifeed detected portion detected by the multifeed detecting mechanism on the display unit A recording medium ac
12. numerical value of a difference between the paper length and the reference length are displayed in the display area MA3 Consequently a source of MF error can be easily checked on the screen Moreover in a specific case where MF is detected within invalid areas of some sheets of papers when the scanner 200 is reading the papers when there is no MF detected area determined as MF error but there is an MF detected area determined as No MF error in the scanner side main pro cess as shown in FIG 4 the display control unit 102a per forms the following processes 51 to 53 after the reading of all the papers by the scanner 200 is completed and displays the MF detection check screen MB as shown in FIG 10 onthe monitor 114 Here one example of the MF detection check screen MB will be explained with reference to FIG 10 The MF detection check screen MB is a screen to display a plu rality of image data in the form of thumbnail and includes a plurality of image display areas MB1 to display image data 20 25 30 35 40 45 50 55 60 65 12 51 A plurality of image data are thumbnail displayed in the image display areas MB1 respectively 52 The image display area MB1 image display area located at the right side of the upper portion in FIG 10 displayed with image data showing the paper A and the paper B MF detected in the invalid area is highlighted with a char acteristic color or pattern or the lik
13. of an attachment such as a seal and a slip attached to the paper are fixed the operator can arbitrarily set the valid area or the invalid area of the MF detection accord ing to the attachment By previewing the set area or length on the monitor this enables the operator to know the result of MF error beforehand thus omitting an unnecessary operation to be performed again rereading operation of a medium According to the present embodiment the detected paper length and the difference between the paper length and the reference length are displayed on the MF detection check screen Consequently when a paper ofa fixed size is to be fed the operator can easily check the source of the multifeed error It should be noted that a method of determining MF with a change in the length of a fed paper is extremely effective in a scanner without the US sensor or the like According to the present embodiment an output of the US sensor indicating MF detection within the preset invalid area is displayed in a different color or the like This allows the cause of the multifeed to be more easily identified According to the present embodiment even if MF is detected within the preset invalid area but it is not determined as MF error the detection in the invalid area is notified to the user after the reading is finished so that the user can check it again The image data is thumbnail displayed and a back ground color of the display area of the image data de
14. the monitor 114 The rereading unit 102e causes the image read ing apparatus 200 to reread the paper The loading unit 1027 loads stores the image displayed on the monitor 114 into the image data file 106a 1 2 Specific Example of Configuration Next a specific example of the configuration of the image reading apparatus 200 connected with the information pro cessing apparatus 100 configured in the above manner will be explained in detail with reference to FIG 2 and FIG 3 A specific configuration of the image reading apparatus which is a scanner is explained herein however the image reading apparatus is not limited to the scanner and thus can be applied to a copier a facsimile and the like US 8 760 678 B2 5 FIG 2 is a schematic representing an overview of a cross section of a scanner as the image reading apparatus 200 hereinafter sometimes described as scanner 200 and this figure shows an overview of the configuration of the scanner to which the multifeed processing unit 202 and the image reading unit 204 are applied As shown in FIG 2 the scanner 200 includes a paper mounting table shooter 31 a pick roller 32 a pick arm 33 a separation pad 34 feed rollers 35 and 36 and ejection rollers 37 and 38 The scanner 200 also includes a transmission side ultrasonic sensor 17 and a reception side ultrasonic sensor 18 of an ultrasonic detector which is explained later corre sponding to the multifeed detecting unit
15. 10 Tagawa et al Yokoyama et al 271 262 Ridl et al cee 358 498 FOREIGN PATENT DOCUMENTS JP 2004 269241 9 2004 JP 2006 245953 A 9 2006 JP 2009 286581 A 12 2009 OTHER PUBLICATIONS Canon Inc User Manual functional detail of scanner DR X10C lt URL http cweb canon jp manual dr pdf drx 1 0c usermanual2 pdf gt Japanese Office Action issued Japanese Application No 2010 112444 mailed Dec 10 2013 with English translation 8 pgs Japanese Office Action issued in Japanese Application No 2010 112444 with Date mailed Feb 25 2014 with English Translation cited by examiner Primary Examiner Benny Q Tieu Assistant Examiner Quyen V Ngo 74 Attorney Agent or Firm McDermott Will amp Emery LLP 57 ABSTRACT An image displaying apparatus includes a control unit and a display unit The image displaying apparatus is connected to an image reading apparatus that includes a multifeed detect ing mechanism The control unit includes a display control unit that displays i an image of a medium which is read by the image reading apparatus and in which multifeed is detected by the multifeed detecting mechanism and ii a multifeed detected portion detected by the multifeed detect ing mechanism on the display unit 8 Claims 8 Drawing Sheets DETECTION MA2 MA3 U S Patent Jun 24 2014 Sheet 1 of 8 US 8 760 678 B2 112 114 INFORMATION PROCESSING APPARATUS 102 CONTR
16. 202 In FIG 2 a dashed two dotted line indicates a feed path of a paper A and an arrow R indicates a reading position of the paper A Papers A placed on the paper mounting table shooter 31 are picked by the pick roller 32 in a state where the papers A are applied with an appropriate pressing force by the pick arm 33 At this time the papers A are sequentially separated from their lower side sheet by sheet by the pick roller 32 and the separation pad 34 The picked paper A is further fed to the feed rollers 35 and 36 by the pick roller 32 is fed to a reading position by the feed rollers 35 and 36 is read by the image reading unit 204 at the reading position and is ejected by the ejection rollers 37 and 38 During feeding of the paper A along the feed path a plurality of sheets usually two sheets or multiply fed papers A which are not separated into one sheet each even by the separation pad 34 are detected by the transmission side ultrasonic sensor 17 and the reception side ultrasonic sensor 18 Therefore as shown in FIG 2 the trans mission side ultrasonic sensor 17 and the reception side ultrasonic sensor 18 are disposed on the upstream side of the reading position where the paper is read by the image reading unit 204 in the feed path Particularly the sensors are disposed on the downstream side or the upstream side of the feed rollers 35 and 36 FIG 3 is a diagram representing one example of a specific configuration of the multifee
17. OL UNIT 102a DISPLAY CONTROL UNIT 102b 200 IMAGE READING APPARATUS 202 MULTIFEED DETECTIN IMAGE DATA SETTING UNIT m d FILE 102c REFLECTING UNIT 102d DELETING UNIT 102e REREADING UNIT 102f DETERMINING UNIT 202b CALCULATING UNIT 204 IMAGE READING UNIT MF DETECTION RESULT FILE COMMUNICATION INTERFACE LOADING UNIT U S Patent Jun 24 2014 Sheet 2 of 8 US 8 760 678 B2 FIG 2 200 INCLUDING 202 AND 204 US 8 760 678 B2 Sheet 3 of 8 Jun 24 2014 U S Patent 9c YILYIANOO av Sc LINDUIO Q10H ANY JldAVvS YINYG YOLOW mm EN OG CT no 6c HOSN3S COS LINDAIO YslsNdNV c OINOSVELTN JGIS NOILd3038 8l LINDYUID ag MdNV ec LZ ALNA SSAVM 40 H3EWNN TOYLNOD 440 NO OIH i YOSNAS OINOSVHLTN 3AIS NOISSINSNVYL LL LINDUID 3GdIlS NOISSINSNVYL U S Patent Jun 24 2014 Sheet 4 of 8 US 8 760 678 B2 FIG 4 START START MF DETECTION FROM UPPER I SA1 l EDGE OF PAPER i SA2 STORE RESULTS OF OUTPUT MF DETECTION OF US SENSOR IN MEMORY AT CERTAIN INTERVALS E COMPARE RESULT AND 4 PREVIOUSLY SPECIFIED SA5 DETECTION CONDITION SA6 HAS MF DETECTION REACHED LOWER EDGE OF PAPER ugue YES IS DETECTION VALID gs SA7 DETERMINE DETECTION AS MF ERROR _ SA8
18. US 8 760 678 B2 7 23 computation amplifier therein In this state the CPU 26 generation unit therein repeatedly receives the input signals tens of times for example 32 times from the reception side ultrasonic sensor 18 through the AD converter 25 and calcu lates an average value thereof to set the value as a reference value More specifically the signals at 32 points within for example one raster are measured The CPU 26 generation unit therein corrects to add the correction value to the refer ence value and generates the threshold and stores the thresh old in the CPU 26 register therein Here the correction valueis determined empirically for each device to be installed allowing for the influence of noise or the like It should be noted that the correction value may be determined beforehand and that the correction value may be determined each time it is required as a variable value for each device for allowing for influence of variation in sensitivity sound pressure of the ultrasonic sensor variation in fixture surroundings and adhesion of paper dust or the like The detector compares the output of the reception side ultrasonic sensor 18 and the threshold and detects feeding of a plurality of papers A The CPU 26 sensor control unit therein transmits a control signal to the transmission side circuit 41 and the like to cause the transmission side circuit 41 to oscillate Moreover the CPU 26 sensor control unit there
19. al functional detail of scanner DR X10C released in home page of canon inc http cweb canon jp manual dr pdf drx 10c usermanual2 pdf dis closes a technology for previously setting a starting position and an ending position at which multifeed detection is dis abled through a screen on a personal computer connected to a scanner before reading is started In addition a technology for displaying a multifeed de tected image on a screen and causing an operatorto determine whether the image is to be loaded or discarded However according to the conventional technologies there is a problem that the length and the position to be disabled have to be previously set and this causes an operator to carry out complicated and troublesome operations for the setting Moreover there is another problem that it is difficult for an operator to identify a cause of multifeed error only by images displayed on the screen SUMMARY OF THE INVENTION It is an object of the present invention to at least partially solve the problems in the conventional technology An image displaying apparatus according to one aspect of the present invention includes a control unit and a display unit The image displaying apparatus is connected to an image reading apparatus that includes a multifeed detecting mechanism The control unit includes a display control unit that displays an image of a medium which is read by the image reading apparatus and in which multifeed
20. area using a color and a pattern or the like It should be noted that the variable display area MA2 shown in FIG 7 is one example in which the MF detection range including the valid area and the invalid area is set Here sizes and positions of the valid area and the invalid area displayed in the variable display area MA2 can be arbitrarily changed by the operator operating the input device 112 Specifically the sizes and positions of the valid area and the invalid area can be arbitrarily changed from the state shown in FIG 7 When the operator changes the sizes and positions of the valid area and the invalid area the setting unit 1025 transfers the setting of the valid area and the invalid area after the change to the scanner 200 and updates the setting of the valid area and the invalid area in the scanner 200 The reflect ing unit 102c reflects previews the changed setting of the valid area and the invalid area in the MF detection check screen MA specifically in the MF detected area C displayed in the image display area MA1 23 A numerical value of the paper length and unit e g mm and a numerical value of a difference between the paper length and the reference length and unit are dis played in the display area MA3 Consequently the set detection range length is reflected to an US sensor output of the screen The result of MF error is previously known through a preview function Therefore an unnecessary operation to
21. az United States Patent Umi et al US008760678B2 US 8 760 678 B2 Jun 24 2014 10 Patent No 45 Date of Patent 54 IMAGE DISPLAYING APPARATUS IMAGE DISPLAYING METHOD AND IMAGE DISPLAYING PROGRAM FOR DETECTING AND DISPLAYING MULTIFEED 75 Inventors Kazuaki Umi Ishikawa JP Tadashi Niwano Ishikawa JP Shinji Suzuki Ishikawa JP 73 Assignee PFU Limited Ishikawa JP Subject to any disclaimer the term of this patent is extended or adjusted under 35 U S C 154 b by 54 days Notice 13 043 937 21 Appl No 22 Filed Mar 9 2011 65 Prior Publication Data US 2011 0279849 A1 Nov 17 2011 30 Foreign Application Priority Data reser utg 2010 112444 May 14 2010 JP 51 Int Cl GO6K 15 00 U S Cl USPC 2006 01 52 358 1 14 358 498 271 91 271 8 1 271 121 271 122 271 123 Field of Classification Search GRE ass HOA4N 1 0044 HO4N 1 00453 HO4N 1 00461 HO4N 1 00474 HO4N 1 00588 HOA4N 1 00602 H04N 1 00615 H04N 1 3263 HO4N 1 32657 USPC 271 91 8 1 121 124 358 1 14 498 See application file for complete search history 58 UA Lb Lee S N MA1 7 1 MA4 MA5 56 References Cited U S PATENT DOCUMENTS 7 341 178 B2 3 2008 Fujikawa oo 235 379 7 866 666 B2 1 2011 Saikawa etal 271 265 04 2005 0228535 Al 10 2005 Simonis et al 2006 0145412 Al 7 2006 2009 0243203 Al 10 2009 2010 0033774 Al 2 20
22. cording to one aspect of the present invention includes the image displaying program product described above The above and other objects features advantages and tech nical and industrial significance of this invention will be better understood by reading the following detailed descrip tion of presently preferred embodiments of the invention when considered in connection with the accompanying draw ings BRIEF DESCRIPTION OF THE DRAWINGS FIG 1 is a diagram representing one example of a configu ration of an information processing apparatus according to a present embodiment FIG 2 is a schematic representing a configuration of a scanner being a specific example of an image reading appa ratus according to the present embodiment FIG 3 is a diagram representing one example of a configu ration of a multifeed detecting unit included in the scanner shown in FIG 2 FIG 4 is a flowchart representing one example of a scan ner side main process according to the present embodiment FIG 5 is a flowchart representing one example ofa PC side main process according to the present embodiment FIG 6 is a schematic representing one example of an MF detection check screen FIG 7 is a schematic representing one example of the MF detection check screen FIG 8 is a schematic representing one example of the MF detection check screen FIG 9 is a schematic representing one example of the MF detection check screen and FIG 10 is a schemat
23. d detecting unit 202 In FIG 3 the ultrasonic detector corresponding to the multifeed detect ing unit 202 detects feeding of a plurality of papers A using ultrasonic waves The ultrasonic detector includes the trans mission side ultrasonic sensor 17 a drive circuit thereof transmission side circuit hereinafter the same 41 the reception side ultrasonic sensor 18 a setting unit 26 for setting a threshold used to detect feeding of a plurality of papers A multifeed and a detector 26 for detecting the feeding of the plurality of papers A The transmission side ultrasonic sensor 17 emits an ultra sonic wave The drive circuit 41 supplies a drive signal for driving the transmission side ultrasonic sensor 17 thereto The drive circuit 41 is configured with a circuit which can ON OFF control that oscillates at a frequency near a resonant frequency of the transmission side ultrasonic sensor 17 The reception side ultrasonic sensor 18 is disposed so as to face the transmission side ultrasonic sensor 17 across a paper feed path and receives the ultrasonic wave The setting unit sets a threshold used to detect the feeding of the plurality of papers A using an output ofthe reception side ultrasonic sensor 18 as a reference value when an output of the transmission side ultrasonic sensor 17 is stopped by the drive circuit 41 The detector compares the output of the reception side ultrasonic sensor 18 and the threshold and detects the feeding of
24. dis abled on the monitor 114 characteristically specifically the MF detected portion is applied with a color or a pattern or the like different from that in the other MF detected portions The display control unit 102a notifies an operator of the fact that the MF detected portion is detected within the area or the length set by the setting unit 1025 explained later in which multifeed detection detected by the multifeed detect ing mechanism 202 is disabled after the image reading appa ratus 200 finishes the reading Specifically after the image reading apparatus 200 completes the reading of a plurality of papers the display control unit 102a displays the read images of the papers in thumbnail form on the monitor 114 and highlights the image including the MF detected portion detected in the area or the length where the multifeed detec tion is disabled using a color or a pattern or the like The display control unit 102a displays a length ofthe paper and a difference between the length and a preset reference length on the monitor 114 The setting unit 1025 causes the operator to set an MF detection range including an area or a length where multifeed detection performed by the multifeed detecting mechanism 202 is enabled or disabled The reflecting unit 102c reflects previews the MF detection range set by the setting unit 1025 in the MF detected portion displayed on the monitor 114 The deleting unit 1024 deletes the image displayed on
25. e Moreover an MF detected area C area determined as No MF error within an overlap range of the paper A and the paper B MF detected in the invalid area is applied with a color or a pattern or the like and is displayed in the image display area MB1 53 The image display area MB1 image display area located atthe centerofthe lower portion in FIG 10 displayed with image data showing the paper A and the seal B attached to the paper A MF detected in the invalid area is highlighted with a characteristic color or pattern or the like Moreover an MF detected area C area determined as No MF error within the seal B MF detected in the invalid area is applied with a color or a pattern or the like and is displayed in the image display area MB1 Consequently it is possible to perform checking again after the reading is completed which allows improved reliability of MF error detection The operator then checks the MF detection check screen MA or the MF detection check screen MB displayed on the monitor 114 to identify verify the cause of the MF error Specifically when the papers overlap the operator presses the image discard button MAS included in the MF detection check screen MA by operating the input device 112 to return the papers to the shooter or hopper ofthe scanner 200 When receiving the press the deleting unit 1024 discards the image data displayed in the image display areas MAI and the rereading unit 102e trans
26. e apparatuses shown in the embodiments or an installation procedure after the reading or the like known configuration and procedures can be used According to the present invention an image of a medium which is read by an image reading apparatus and where mul tifeed is detected by a multifeed detecting mechanism and a multifeed detected portion detected by the multifeed detect ing mechanism are displayed on a display unit Thus there is such an effect that the cause of multifeed can be easily iden tified without causing an operator to perform complicated and troublesome operations According to the present invention an area or a length in which the multifeed detection detected by the multifeed detecting mechanism is enabled or disabled is caused to be set and the set area or length is reflected in the multifeed detected portion displayed on the display unit Thus there is such an effect that when the size and the attached position of an attachment such as a seal and a slip attached to the medium are fixed the operator can arbitrarily set the valid area or US 8 760 678 B2 15 length or the invalid area or length of the MF detection according to the attachment There is such an effect that by previewing the set area or length on the display unit this enables the operator to know the result of MF error before hand thus omitting an unnecessary operation to be performed again rereading operation of a medium According to the pre
27. en the MF detected area is within the valid area or is not within the invalid area and determines the MF detection performed by the US sensor as invalid when the MF detected area is not within the valid area or is within the invalid area Next when the MF detection performed by the US sensor is determined as valid Yes at Step SA6 the determining unit 202a determines this case as MF error according to the MF detection performed by the US sensor Step SAT Meanwhile when the MF detection performed by the US sensor is determined as invalid No at Step SA6 the deter mining unit 202a ignores the MF detection performed by the US sensor and determines this case as No MF error and also stores information indicating that the MF detection per formed by the US sensoris determined as invalid in the output result of the US sensor specifically the MF detection range of the US sensor and the information indicating that the MF detection is determined as invalid are stored in association with each other Step SA8 Next the calculating unit 2025 of the multifeed detecting unit 202 calculates the length of the paper specifically the length from the upper edge to the lower edge of the paper from the image data of the read paper or the output result of the US sensor Step SA9 Next when a detection mode to detect MF due to a differ ence in lengths of papers is selected to its valid state Yes at Step SA10 the determining unit 202a compare
28. fers an instruction to rescan reread the paper to the scanner 200 Specifically when the size and the position of an object attached to the paper are fixed the operator appropriately adjusts the MF detection range of the variable display area MA2 by operating the input device 112 while viewing the MF detection check screen MA After the adjustment is finished the setting unit 1025 transfers the adjusted MF detection range to the scanner 200 to update the setting of the MF detection range of the scanner 200 The reflecting unit 102c reflects the adjusted MF detection range in the MF detection check screen MA specifically the displayed MF detected area Specifically when MF is not caused by an overlap of papers the operator presses the image load button MA4 included in the MF detection check screen MA by operating the input device 112 When receiving the press the loading unit 102 stores loads the image data displayed in the image display area MAI in a predetermined memory area of the image data file 106a 3 Summary of Present Embodiment and Other Embodi ments As mentioned above according to the present embodi ment not only the MF detected image but also the output of the US sensor MF detected portion is further displayed in the MF detection check screen upon MF detection Conse quently the cause of MF can be easily identified without causing the operator to perform complicated and troublesome setting operations of valid
29. hat the range is determined as invalid in some cases and the paper length are transferred thereto Subsequently one example of the main process performed in the PC 100 side will be explained with reference to FIG 5 and the like First the control unit 102 of the PC 100 acquires the image data transferred from the scanner 200 Step SB1 Next when it is determined as MF error by the scanner 200 the control unit 102 acquires the determination result of MF error notified from the scanner 200 Step SB2 Next when it is determined as MF error by the scanner 200 the control unit 102 acquires the output result of the US sensor which specifically includes the MF detected area and the information indicating that the range is determined as invalid in some cases notified from the scanner 200 and also acquires the paper length and stores the acquired data in a predetermined memory area of the MF detection result file 1065 Step SB3 Then when it is determined as MF error by the scanner 200 the display control unit 102a displays MF detection check screens MA as shown in for example FIG 6 to FIG 9 on the monitor 114 based on the image data the output result of the US sensor MF detected area the paper length the preset MF detection range which is specifically the MF detection range including the valid area or the length regarded as valid and or the invalid area or the length regarded as invalid ofthe MF detection by
30. he image displaying apparatus according to claim 1 wherein the control unit further includes a deleting unit that deletes the image and a rereading unit that causes the image reading apparatus to reread the medium 7 An image displaying method implemented by a control unit of an image displaying apparatus that includes the con trol unit and a display unit and is connected to an image reading apparatus including a multifeed detecting mecha nism the image displaying method comprising a display controlling step of displaying an image of a medium which is read by the image reading apparatus and in which multifeed is detected by the multifeed detecting mechanism and a multifeed detected portion which is detected by the multifeed detecting mechanism and is a portion of the medium on the display unit the multifeed detected portion being displayed on the image wherein the display control step displays on the display unit a multifeed detection check screen including an image display area to display the image and the multi feed detected portion and a variable display area to vari ably display a multifeed detection range including an area or a length in which the multifeed detected by the multifeed detecting mechanism is enabled or disabled 8 A non transitory tangible computer readable medium having instructions for a control unit of an image displaying apparatus that includes the control unit and a display unit and is connected to an i
31. ic representing one example ofthe MF detection check screen DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an image displaying apparatus an image displaying method and an image displaying program accord ing to the present invention will be explained in detail below with reference to the accompanying drawings It should be noted that the present invention is not limited by the embodi ments US 8 760 678 B2 3 1 Configuration of Present Embodiment 1 1 Overview of Configuration First the overview of a configuration of an information processing apparatus 100 according to a present embodiment will be explained with reference to FIG 1 FIG 1 is a diagram representing the overview of the configuration of the infor mation processing apparatus according to the present embodiment applied to the image displaying apparatus according to the present invention The information processing apparatus 100 is specifically a personal computer PC and includes a control unit 102 a communication interface 104 a storage unit 106 and an input output interface 108 which are communicably con nected to each other through an arbitrary communication path The information processing apparatus 100 is communi cably connected to an image reading apparatus 200 Here the image reading apparatus 200 is specifically a scanner a copier a facsimile or the like and includes a multifeed detecting unit 202 and an image reading unit
32. in applies a predetermined bias voltage to the amplifier circuit 23 computation amplifier therein In this state the CPU 26 comparator therein repeatedly receives the input signals digital values tens of times for example 32 times from the reception side ultrasonic sensor 18 through the AD converter 25 and holds the received signals At this time the oscillation transmission side drive pulses of the transmis sion side circuit 41 is stopped and the signals at a plurality of predetermined positions for example at 32 points are mea sured The measuring position is set to once in for example each raster or once in a plurality of rasters When an output waveform ofthe reception side ultrasonic sensor 18 is getting larger to become a maximum value the maximum value is sampled and held Next the CPU 26 sensor control unit or comparator therein sets a timer for SH interrupt and deter mines whether an interrupt occurs The SH interrupt is set so as to occur 32 times when for example 32 input signals are to be obtained as explained above In other words the SH interrupt triggers continuous outputs of drive pulses in the transmission side For example 32 times of SH interrupts occur in once in each raster with the passage of a predeter mined time When the interrupt does not occur the determi nation of occurrence of the interrupt is repeated When an interrupt occurs an average value of 32 values previously received and held f
33. invalid areas of MF detection Moreover a position on the paper at which MF is detected can be more clearly shown In addition the operability when the paper with attached sticky note or photo or the like is deter mined as MF can be improved US 8 760 678 B2 13 Although only the MF detected image is displayed so far the cause of the MF error is difficult to be identified only by the image Specifically it is difficult to check a boundary of the papers only by the image and it is also difficult to find out a portion at which the MF has occurred Moreover it is also necessary to check an MF detected actual paper and it is also troublesome to set a valid invalid area of MF detection According to the present embodiment therefore when MF is detected not only a screen for checking an MF detected image is displayed on the PC but also an output of the US sensor portion where MF is detected is displayed on the screen Consequently a source of MF error can be easily checked on the screen In addition it is easily determined whether the image is loaded or discarded Moreover according to the present embodiment the valid invalid area of MF detection is caused to be set through the MF detection check screen and is previewed In addition according to the present embodiment the length regarded as MF detection is caused to be set through the MF detection check screen and is previewed As a result when the size and the attached position
34. ion can be used hereinafter the output device 114 may sometimes be described as a monitor 114 As the input device 112 in addition to a keyboard a mouse and a micro phone a monitor for achieving a pointing device function in cooperation with the mouse can be used The control unit 102 includes a CPU Central Processing Unit for integrally controlling the information processing apparatus 100 and the like The control unit 102 includes an internal memory for storing therein a control program such as OS Operating System and programs defining various pro cessing procedures or the like and also storing therein required data and performs information processing for executing various processes based on the programs As shown in this figure the control unit 102 roughly includes a display control unit 102a a setting unit 1025 a reflecting unit 102c a deleting unit 1024 a rereading unit 102e and a loading unit 1027 The display control unit 102a displays i images of papers which are read by the image reading apparatus 200 and in which MF is detected by the multifeed detecting mechanism 202 and ii an MF detected portion MF detected area detected by the multifeed detecting mechanism 202 on the monitor 114 The display control unit 102a displays the MF detected portion detected within the area or the length set by the setting unit 1025 explained later in which multifeed detection detected by the multifeed detecting mechanism 202 is
35. ion processing apparatus to implement the image display method according to the present invention The image displaying program according to the present invention may be stored in a computer readable recording medium or can be configured as a program prod uct The recording medium mentioned here includes any portable physical medium such as a flexible disk a mag neto optical disc ROM EPROM Erasable Programmable Read Only Memory EEPROM Electronically Erasable and Programmable Read Only Memory CD ROM Compact Disk Read Only Memory MO Magneto Optical disk and DVD Digital Versatile Disk or includes a communication medium that temporarily holds a program such as a com munication line and a carrier used to transmit the program through a network such as LAN Local Area Network WAN Wide Area Network and the Internet The program men tioned here is a data processing method described in arbitrary language and description method and thus any form such as a source code and a binary code is acceptable It should be noted that the program is not necessarily limited to a pro gram configured as a single unit and therefore includes those distributedly configured as a plurality of modules and libraries and those in which the function of the program is achieved in cooperation with separate programs represented as OS Regarding a specific configuration and a reading pro cedure to read a recording medium by th
36. mage reading apparatus including a mul tifeed detecting mechanism the instructions when executed causing the control unit to perform a display controlling step of displaying an image of a medium which is read by the image reading apparatus and in which multifeed is detected by the multifeed detecting mechanism and a multifeed detected portion which is detected by the multifeed detecting mechanism and is a portion of the medium on the display unit the multifeed detected portion being displayed on the image wherein the display control step displays on the display unit a multifeed detection check screen including an image display area to display the image and the multi feed detected portion and a variable display area to vari ably display a multifeed detection range including an area or a length in which the multifeed detected by the multifeed detecting mechanism is enabled or disabled
37. ng an area or alength in which the multifeed detected by the multifeed detecting mechanism is enabled or disabled 2 The image displaying apparatus according to claim 1 wherein the control unit further includes a setting unit that causes the area or the length to be set by operating the multifeed detection range and 20 25 30 35 40 45 50 55 60 16 areflecting unit that reflects the area orthe length set by the setting unit in the multifeed detected portion displayed on the image display area 3 The image displaying apparatus according to claim 2 wherein the display control unit characteristically displays the multifeed detected portion detected in the area or the length set by the setting unit in which the multifeed detection is disabled on the image display area 4 The image displaying apparatus according to claim 2 wherein the display control unit notifies after the image reading apparatus finishes reading that the multifeed detected portion is detected in the area or the length set by the setting unit in which the multifeed detection is disabled 5 The image displaying apparatus according to claim 1 wherein the multifeed detection check screen further includes a display area to display a length of the medium and a differ ence between the length of the medium and a preset reference length and the display control unit displays the length of the medium and the difference on the display area 6 T
38. or example a moving average value is calculated and this value is determined as a value of an input signal used to detect the multifeed MF Thereafter the CPU 26 comparator therein compares the value of the input sig nal with the threshold of the register When the value of the input signal is equal to or more than the threshold the CPU 26 comparator therein determines that the result is normal paper feeding while when the value ofthe input signal is less than the threshold the CPU 26 comparator therein deter mines whether the number of times in this case is predeter mined times for example ten times or more When it is determined that the number of times is 10 times or more the CPU 26 comparator therein determines that a multifeed occurs and outputs an error signal When it is determined that the number of times is not 10 times or more the following processes performed after the timer is set are repeated The error signal is then input to the determining unit 202a of the CPU 26 40 45 55 60 65 8 2 Processes of Present Embodiment Here one examples of processes respectively executed in the information processing apparatus 100 hereinafter some times described as PC 100 and the image reading appara tus 200 hereinafter sometimes described as scanner 200 configured in the above manner will be explained with refer ence to FIG 4 FIG 5 and the like At first one example of a main process
39. ransmits the drive signal to the motor driver 27 and causes the motor 28 to drive so as to stop feeding of a plurality of papers A The CPU 26 includes the determining unit 202a and the calculating unit 2025 and when MF is detected the CPU 26 or detector transfers the result of output of the ultrasonic sensor to the determining unit 202a and the calculating unit 2025 The ultrasonic detector includes the transmission side cir cuit drive circuit 41 The transmission side circuit 41 is configured from a drive IC a resistance frequency controlled oscillator OSC and a variable resistor The drive IC is a drive circuit for supplying a drive signal to drive the trans mission side ultrasonic sensor 17 thereto This causes the transmission side ultrasonic sensor 17 to emit an ultrasonic wave The reception side ultrasonic sensor 18 receives the ultrasonic wave and outputs a detection signal according to the intensity of the received ultrasonic wave For example when the paper A is not present between the transmission side ultrasonic sensor 17 and the reception side ultrasonic sensor 18 the reception side ultrasonic sensor 18 detects a signal with a certain level ordinary level and detects a signal with a level normal level less than the ordinary level but more than a predetermined threshold when a sheet of paper A is present When two sheets or more of paper A are present the reception side ultrasonic sensor 18 detects a signal with
40. s provided A source of MF error can be easily checked on the screen Moreover in a specific case where MF error is detected within the valid area and MF is also detected in the invalid area by the scanner 200 when there is an MF detected area which is determined as MF error and there is also an MF detected area which is determined as No MF error in the scanner side main process as shown in FIG 4 the display control unit 102a performs the following processes 41 to 43 in an arbitrary order and displays an MF detection check screen MA as shown in FIG 9 on the monitor 114 41 Image data showing MF detected paper A and paper B and a seal C attached to the paper B is displayed in the image display area MA1 Moreover an MF detected area D area determined as MF error in the seal C MF detected in the valid area is applied with a color or a pattern or the like and is displayed in the image display area MAI In addition an MF detected area E area determined as No MF error within an overlap range of the paper A and the paper B MF detected in the invalid area is applied with a different color or pattern or the like from the MF detected area D and is displayed in the image display area MA1 42 A preset MF detection range is displayed in the variable display area MA2 so as to be capable of discriminating the valid area from the invalid area using a color or a pattern or the like 43 A numerical value of the paper length and a
41. s the length of the paper calculated at Step SA9 and the preset reference length e g a length ofthe first sheet of paper 10 mm Step SA11 US 8 760 678 B2 9 Next when the result of comparison at Step SA11 is longer than the reference length Yes at Step SA12 the determining unit 202a determines this case as MF error Step SA13 Next the scanner 200 checks whether transfer ofthe image data to the PC 100 has been finished When the transfer to the PC 100 has been completed Yes at Step SA14 and if MF error is further determined Yes at Step SA15 the scanner 200 notifies the PC 100 of the MF error Step SA16 and notifies the PC 100 of the output result of the US sensor specifically the MF detection range stored in the memory and of the paper length calculated at Step SA9 Step SA17 Meanwhile when MF error is not determined No at Step SA15 and if there is next paper Yes at Step SA18 the scanner 200 performs again the processes at Step SA1 and thereafter As mentioned above the one example of the main process performed in the scanner 200 side has been explained As a result of performing the main process the image data for each read paper is transferred to the PC 100 In addition when MF error is determined by the scanner 200 then the determina tion result of the MF error the output result of the US sensor which specifically includes the MF detected area and the information indicating t
42. sent invention the multifeed detected portion detected in the set area or length in which the multi feed detection is disabled is displayed on the display unit characteristically specifically in a color or pattern or the like different from that in the other multifeed detected portions Thus there is such an effect that this allows the cause of the multifeed to be more easily identified According to the present invention after the image reading apparatus finishes reading it is notified that the multifeed detected portion is detected in the set area or length in which the multifeed detection is disabled Specifically after the reading of a plurality of mediums is completed the read images of the mediums are displayed in thumbnail form on the display unit and the image including the multifeed detected portion detected in the area or the length where the multifeed detection is disabled is highlighted Thus there is such an effect that the operator can check again the read state of each medium after the reading is completed thus improv ing the reliability of multifeed error detection According to the present invention a length ofthe medium and a difference between the length and a preset reference length are displayed on the display unit Thus there is such an effect that when a medium of a fixed size is to be fed the operator can easily check the source of the multifeed error According to the present invention the image is deleted
43. tected in the invalid area among thumbnail images is featured and highlighted Consequently the operator can check again the read state of each paper after the reading is completed thus improving the reliability of MF error detection According to the present embodiment the user checks a highlighted image the background is changed in the thumb nail screen and deletes the image or causes the paper to be reread if necessary Consequently when papers overlap the operator can easily implement discard of the image and res can of the paper Moreover the present invention may be implemented in various different embodiments in the scope of technical idea described in the appended claims other than the embodiment For example of the processes explained in the embodiment all or part of the processes explained as automatically per formed ones can be manually performed or all or part of the processes explained as manually performed ones can be also automatically performed using known methods A specific configuration of distribution or integration of the apparatuses is not limited to the illustrated one The apparatuses can be configured by functionally or physically distributing or inte grating all or part of the apparatuses in arbitrary units accord ing to various types of additions or the like or according to functional loads In addition the process procedures the con trol procedures the specific names and the screen examples 40
44. the plurality of papers A The ultrasonic detector further includes an amplifier circuit 21 at a first stage a BPF Band Pass Filter 22 an amplifier circuit 23 at a second stage asample and hold S amp H circuit 24 an AD Analog to Digital converter 25 CPU 26 a motor 20 25 30 35 40 45 50 55 60 65 6 driver 27 a motor 28 ROM 29 and RAM 30 These compo nents constitute a reception side circuit More specifically the reception side ultrasonic sensor 18 outputs an electrical signal according to the ultrasonic wave received from the transmission side ultrasonic sensor 17 the amplifier circuit 21 amplifies the electrical signal the BPF removes noise therefrom and thereafter the amplifier circuit 23 further amplifies the signal after the noise is removed Then after the sample and hold circuit 24 samples and holds SH a peak value of the signal the AD converter 25 converts the peak value analog signal into a digital value digital signal The AD converter 25 inputs the digital signal input signal to the CPU 26 the setting unit and the detector therein where it is analyzed More specifically the setting unit and the detector implemented by a setting and detection processing program and hardware on the CPU 26 analyze the input signal The setting and detection processing program is stored in for example the ROM 29 and or the RAM 30 When a multifeed is detected the CPU 26 or detector t
45. the US sensor and also based on the preset reference length Step SB4 When it is not determined as MF error by the scanner 200 the display control unit 102a displays an MF detection check screen MB as shown in FIG 10 on the monitor 114 Step SB4 Specifically when two or more sheets of paper overlapped are determined as MF error by the scanner 200 the display control unit 102a performs the following processes 11 to 13 in an arbitrary order to display the MF detection check screen MA as shown in FIG 6 on the monitor 114 Here one example of the MF detection check screen MA will be explained with reference to FIG 6 The MF detection check screen MA includes an image display area MA1 to display image data a variable display area MA2 to variably display an MF detection range including a valid area and or an invalid area a display area MA3 to display a numerical value of the paper length and a numerical value of a difference between 20 25 30 35 40 45 50 55 60 65 10 the paper length and the reference length an image load button MA4 to instruct loading storage of the image data displayed on the image display area MAI and an image discard button MAS to instruct discard delete of the image data displayed on the image display area MA1 11 Image data showing MF detected paper A and paper B is displayed in the image display area MA1 Moreover an MF detected area C in an overlap range of the paper
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