JP2004229134A - Image processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid a discontinuity caused by bending and stretching a cable between an image reader and an optical unit, staining on a glass surface caused by the cable rubbing against a platen glass, and the generation of a noise emitted from the cable. <P>SOLUTION: Both the image reader and the optical unit have each radio communication unit. Then, image data and command information for control are transmitted and received through the radio communication unit. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image processing technique related to an image reading device such as a copying machine.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in an image processing apparatus having an image reading device such as a copying machine, in order to generate image data, an optical unit is moved along a document surface while using a lamp in the optical unit. And a mirror is used to image the reflected light on an image sensor such as a CCD arranged on the main body side of the image reading apparatus using a mirror.
[0003]
However, in the conventional method in which the reflected light is guided to the image sensor using the mirror, it is necessary to use three mirrors for the moving optical unit so that the optical path length is always equal, and the space for that is required. Due to the necessity of securing the thickness, the thickness of the image reading apparatus has been limited.
[0004]
For this reason, in an image reading apparatus of a type giving priority to a reduction in the thickness of the apparatus, a contact image sensor system is adopted in which an image sensor is placed in an optical unit together with a document illumination lamp and the image sensor is moved along the document surface. This contact image sensor system has the advantage that, besides making the device thinner, the distance between the lamp and the image sensor becomes very short, so that the lamp light quantity can be reduced as compared with the case of the fixed sensor type. .
[0005]
[Problems to be solved by the invention]
However, while the contact image sensor system has the above-described advantages, the number of signal lines in a flexible cable (hereinafter, referred to as a “cable”) connecting the image reading apparatus main body and the optical unit is a conventional sensor fixing system. There is a problem that the number increases as compared with. In the image sensor fixed system, it is only necessary to secure a power line for turning on the lamp in the extreme, whereas in the contact image sensor system, in addition to the power line for lighting the lamp, the image sensor is driven. And a transfer line for transferring the read image signal. These wiring groups are routed along with the movement of the optical unit.
[0006]
Therefore, when the reading speed of the document is increased, it is necessary to increase the clock speed, that is, the frequency for transferring the read image signal to the apparatus main body side, accordingly, which causes a problem of generating noise.
[0007]
Also, in the thinner device body, the curvature of the cable connecting the device body and the optical unit increases, and as the number of scans of the optical unit increases, fatigue due to bending and stretching of the cable accumulates. Also, there is a problem that the wiring is damaged.
[0008]
Furthermore, there is also a problem of dirt on the glass back surface due to the cable rubbing against the platen glass.
[0009]
[Means for Solving the Problems]
Therefore, in the present invention, a wireless communication means is provided in each of the contact type optical unit and the apparatus main body, and the command for turning on / off the document illumination lamp and the image sensor and the transmission of the image data read by the image sensor are wirelessly transmitted. Accordingly, an object of the present invention is to provide an image reading apparatus which eliminates the need for a cable for connecting the apparatus main body and the optical unit, and solves the above-mentioned problem.
[0010]
In order to achieve the above object, an image processing apparatus according to the present invention mainly has the following configuration.
[0011]
That is, an image processing apparatus that wirelessly receives and processes image data from an optical unit with an image reading apparatus,
The optical unit,
First data generation means for generating, as first packet data, image data input by the sensor means and first additional information for controlling wireless communication of the image data;
First wireless communication means for wirelessly transmitting the generated first packet data,
The image reading device,
A second wireless communication unit that controls wireless reception of the first packet data based on the collation of the first additional information;
Image processing means for processing the image data included in the received first packet data.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
[First Embodiment]
FIG. 1 is a diagram showing a schematic cross-sectional structure of an image reading device according to an embodiment of the present invention. In FIG. 1, reference numeral 100 denotes an image reading apparatus main body. Reference numeral 101a denotes a platen glass as a document placing table. An optical unit 102 includes a document illumination lamp 103 (for example, a white LED) for illuminating a document, an image sensor unit 104 for reading an image, and the like. In the present embodiment, the image sensor unit 104 uses a contact line sensor composed of a group of image sensors having a length substantially equal to the depth width of the platen glass 101 and arranged in a line in the depth direction of the drawing. When reading an original image placed on the platen glass 101a, the optical unit 102 reciprocates in a predetermined direction (left-right direction in the drawing) by a motor (not shown), and illuminates the original surface on the original path in the meantime. The original image is converted into an electric signal by being illuminated by the lamp 103 and receiving the reflected light by the image sensor unit 104.
[0014]
Reference numeral 110 denotes an automatic document feeder (DF). From the bundle of documents placed on the document table 111, only the topmost document is separated by the pickup roller 112 and the separation roller 113, and the leading edge position of the document is adjusted by the registration roller 114, and the first The document is transported by the document feed roller 115. The document is passed over the platen glass 101b by the platen roller 116 and sent to the sheet discharge unit by the second transport roller 117.
[0015]
At this time, the optical unit 102 is moved to a predetermined position below the platen glass 101b. In this way, by conveying the document above the optical unit 102 set at a predetermined position, the reflected light of the document surface illuminated by the document illumination lamp 103 is received by the image sensor unit 104, and the document image is converted into an electric signal. Is converted to At that time, considering the order of conversion of the image sensor unit 104 into electric signals in the line sensor, the arrangement of image data at the time of fixed original reading using the platen glass 101a is different from the arrangement of image data at the time of moving original reading using the platen glass 101b. It should be noted that the arrangement of the image data is a mirror image of the right and left when viewed in the original image.
[0016]
The document conveyed to the paper discharge unit is guided to the paper discharge reversing roller 119 if the reversal flapper 118 is open in the paper discharge direction (the state where the document is pulled up in the drawing), and if the paper is discharged, it is out of the machine. The paper is discharged to the paper discharge tray 120. Alternatively, when subsequently reading the back side of the document, the reversing discharge roller 119 conveys the document until it passes through the reversing flapper 118, where the reversing flapper 118 is closed in the discharging direction (the state in which the flapper is lowered in the drawing). ) And the reversing paper discharge roller 119 is rotated in the reverse direction, so that the document enters the transport path again, and the back side image is read. If the original is directly discharged to the paper output tray 120 after reading the back side image, the originals on the original placing table 111 will not be aligned (the front and back are reversed). The original is again inverted by the paper ejection roller 119, and the original is ejected to the paper ejection tray 120 after the conveyance path is idly fed (the original is not read).
[0017]
FIG. 2 is a block diagram illustrating a configuration of the image reading device according to the embodiment of the present invention.
[0018]
<Configuration of Apparatus Main Body (100)>
In FIG. 1, reference numeral 201 denotes a CPU that controls the image reading apparatus main body 100. An HP sensor 202 detects whether the optical unit 102 is at a reference position, that is, a home position (HP), and inputs a signal to the CPU 201. A motor 203 drives the optical unit 102 based on an instruction from the CPU 201.
[0019]
Reference numeral 204 denotes an external IF, which is an interface (IF) for performing communication between the controller 250 and the image reading apparatus 100 when connected to the controller 250. A command issued from the controller 250 to the CPU 201 is received or a command from the CPU 201 is transmitted to the controller 250 via the external IF 204. The image data read by the image reading device is transmitted to the controller 250 via the external IF 204.
[0020]
A wireless communication unit 205 performs wireless communication with the wireless communication unit 211 on the optical unit 102 side, and notifies the optical unit 102 of a command from the CPU 201. Alternatively, a command transmitted from the optical unit 102 is notified to the CPU 201. Alternatively, the CPU 201 receives image data transmitted from the optical unit 102 and notifies the CPU 201 of the image data.
[0021]
An image memory 206 stores image data received by the wireless communication unit 205.
[0022]
An image processing unit 207 performs image processing on the image data stored in the image memory 206 based on an instruction from the CPU 201.
[0023]
Reference numeral 208 denotes a power supply unit, which supplies power to a battery 214 described later in contact with a power receiving unit 213 on the optical unit 102 side. The battery 214 is charged based on power supply from the power receiving unit 213. The power supply unit 208 and the power receiving unit 213 are arranged so as to be in contact with each other when the optical unit 102 is located at the HP.
[0024]
In addition, the CPU 201 of the image reading device 100 is connected to a document feeder (DF) 110 and controls the DF 110.
[0025]
<Configuration of Optical Unit (102)>
Reference numeral 210 denotes a CPU that controls the optical unit 102. The CPU 210 monitors the battery capacity of the battery 214 described later.
[0026]
A wireless communication unit 211 on the optical unit 102 communicates with the wireless communication unit 205 on the image reading apparatus 100 to notify a command from the apparatus 100 to the CPU 210. Alternatively, the command issued by the CPU 210 can be notified to the image reading apparatus 100 side. Further, the wireless communication unit 211 can transmit the image data read by the optical unit 102 to the image reading device 100 side.
[0027]
Reference numeral 212 denotes a memory, which is a storage unit that temporarily stores image data read by the image sensor unit 104. The temporarily stored image data is sequentially read out by the CPU 210 and transmitted to the image reading apparatus 100 via the wireless communication unit 211.
[0028]
As described above, the power receiving unit 213 receives power from the power supply unit 206 of the image reading apparatus 100 in contact with the power supply unit 206 and supplies the power to the battery 214.
[0029]
A battery 214 supplies power to the CPU 210, the wireless communication unit 211, the memory 212, the document illumination lamp 103, and the image sensor unit 104 in the optical unit 102.
[0030]
<Control of image reading device>
FIG. 3A is a flowchart illustrating an example of a control procedure on the apparatus main body side regarding image reading of the image reading apparatus 100 according to the present embodiment, particularly, image reading of a document placed on the platen glass 101a.
[0031]
First, in steps S310 and S302, the process waits for a job start request from the controller 250. Specifically, the external IF unit 204 receives a command sent from the controller 250, and the CPU 201 determines whether or not the command is a job start request.
[0032]
If it is determined in step S302 that the job start request command has been received (S302-Yes), the process proceeds to step S303, and a scan request command is issued to the optical unit 102. Specifically, the CPU 201 notifies the CPU 210 of a scan request command via the wireless communication unit 205 of the image reading apparatus 100 and the wireless communication unit 211 of the optical unit 102. At this time, in order to avoid interference with other wireless communication means, a scan request is issued for a predetermined unique ID for each model of the image reading apparatus and a predetermined unique ID for the optical unit. Send with command. This makes it possible to avoid erroneous operation of the command even when devices using the same wireless communication method are within the reach of wireless information.
[0033]
After issuing the scan request command, the process proceeds to step S304, and waits for a response to the scan request command from the optical unit 102 to be notified.
[0034]
In step S305, the content of the received response is analyzed, and it is determined whether the optical unit 102 is ready for scanning. The state in which the optical unit 102 is not scannable is that the battery 214 does not store enough power to operate the optical unit or that wireless communication cannot be established between the wireless communication units 205 and 211 for some reason. There is a case where no response is returned even after waiting for a predetermined time. If it is determined in step S305 that the optical unit 102 is in a state in which scanning is not possible (S305-No), the controller 250 is notified to the controller 250 that the job preparation is NG in response to the job start request command from the controller 250. The notification is made, and the process ends (step S306). On the other hand, when it is determined in step S305 that scanning is possible (S305-Yes), the controller 250 is notified of job preparation OK (step S307), and the process is continued.
[0035]
In step S308, the controller 250 having received the job preparation OK issues image reading start timing information, and the image reading apparatus 100 having received this information notifies the optical unit 102 of the image reading start timing. . The image reading start timing is derived from the moving time of the optical unit 102 driven by the motor 203 to the reading start position.
[0036]
In step S309, driving of the optical unit 102 by the motor 203 starts. Focusing on the operation of the optical unit 102, the relationship between the speed (V) and the time (t) is illustrated in FIG. 3B. The optical unit 102 starts moving from the start position, gradually increases the moving speed, and accelerates to a constant speed (V1) according to the reading resolution instructed by the controller 250. After reaching the certain speed, it reaches the document reading start position (P1) for a predetermined time (T1), and starts reading the document. After reading the original image for the length designated by the controller 250 (P1P2 = (V1 × T2)), the optical unit 102 starts decelerating to stop. After the stop, after a wait time (T3) for switching the rotation direction of the motor 203, a movement (301) for returning to the start position is started.
[0037]
After the driving of the optical unit 102 is started in step S309, the process waits for image data to be transmitted from the optical unit 102 (step S310), and the following processing (S312 to S311) is performed until the end of image data transfer is detected in step S311. S315) is repeated.
[0038]
In step S312, it is determined whether the received image data is correct. The determination of correctness is made by, for example, transmitting image data transmitted wirelessly by dividing the image data into packets in a predetermined size (as described above, the transmission source and the reception destination have a unique ID and an index of the data). Are included in the packet), and the correctness can be determined by putting the checksum value of the packet in the packet and comparing it with the checksum value of the received data.
[0039]
If it is determined in step S312 that the reception of the image data has been performed normally, the reception of the image data is notified to the optical unit 102 (step S313), and the received image data is stored and accumulated in the image memory 206. (Step S314). On the other hand, if it is determined that the received data is incorrect (S 312 -No), the process proceeds to step S 315, notifies the optical unit 102 of reception NG, and requests data retransmission.
[0040]
The processing from step S310 to step 315 is repeated until the end of the transfer of the image data is detected in step S311 (S311-No), and then, in step S316, the drive stop processing of the optical unit 102 is performed.
[0041]
Then, in step S317, the CPU 201 reads the image data stored and stored from the image memory 206, performs image processing in the image processing unit 207, and outputs the processed image data to the controller via the external IF unit 204. 250.
[0042]
The image processing performed by the image processing unit 207 includes shading for correcting variations in sensitivity among image sensors included in the image sensor unit 104 and variations in light amount due to positions based on the light distribution characteristics of the document illumination lamp 103. There is a correction. At a certain point in time, the light input to each of the RGB light receiving units of the image sensor unit 104 is not at the same place on the document due to the difference between the positions of the RGB light receiving units. Make corrections. Further, since the RGB values output from the image sensor unit 104 are affected by the color filters attached to the respective light receiving units, input masking for correcting the influence and correcting the RGB values to correct RGB values. Perform processing.
[0043]
After the transmission of the image data is completed, the end of the job is notified to the controller 250 (step S318), and the process ends.
[0044]
By performing the above processing by controlling the image reading apparatus, the reception of the document image data and the predetermined image processing for the received data are completed.
[0045]
<Image reading control of optical unit>
FIG. 4 is a flowchart illustrating an example of a control procedure regarding image reading of the optical unit 102 according to the present embodiment.
[0046]
In step S401, a command is received from the image reading apparatus 100, and it is determined whether a scan request command is received (step S402).
[0047]
If a scan request command has been received (S402-Yes), the process proceeds to step S403, and the state of the optical unit 102 is checked.
[0048]
If it is determined in step S404 that scanning is possible based on the result of the status check in step S403 (S404-Yes), a response is notified to the image reading apparatus 100 as scanning is possible (step S405). If it is determined that there is (S404-No), a response indicating that scanning is not possible is given (step S406), and the process ends. As a case where it is determined that scanning is not possible, the capacity of the battery 214 is insufficient as described above.
[0049]
After notification of the scan OK response in step S405, the process waits for a timing notification from the image reading apparatus 100 in steps S407 and S408. If the wireless communication state is poor, it is conceivable that a timing notification cannot be received within a predetermined time. In that case, a timeout error may be detected and the processing may be terminated there.
[0050]
After receiving the timing notification in step S408 (S408-Yes), a wait process is performed for a predetermined time based on the timing information in step S409, and image reading is started (step S410). By performing the weight processing, an image can be read from the reading start position in accordance with the movement of the optical unit 102 with respect to the document placed on the platen glass 101a.
[0051]
The read image data is stored in the memory 212 (step S411), and steps S410 and S411 are repeatedly executed until it is determined in step S412 that the reading is completed.
[0052]
By performing the above processing, the reading processing of the image data in the optical unit 102 is completed.
[0053]
<Image data transfer control of optical unit>
FIG. 5 is a flowchart illustrating an example of a control procedure regarding image data transfer of the optical unit 102 according to the present embodiment.
[0054]
First, in step S501, it is determined whether image data has been input to the memory 212. If image data has been input (S501-Yes), the process proceeds to step S502, where the image data is read out by a predetermined size from the memory 212, and the transmission side (in this case, the optical unit 102) and the reception side (the In this case, the image reading device 100) adds additional information such as a unique ID number for specifying both devices and packetizes the packet, and transmits the image data to the image reading device 100 via the wireless communication unit 211.
[0055]
The image data of the predetermined size can be a line unit in the main scanning direction of the image data read by the image sensor unit 104 or a size of a unit obtained by further dividing one line. It is not intended to limit the spirit of the invention. In addition, the wireless communication units 211 and 205 transmit and receive packetized information by mutually generating predetermined wireless frequencies in order to wirelessly communicate image data or the various commands described above.
[0056]
Thereafter, a response from the image reading apparatus 100 (S313 and S315 in FIG. 3A) is waited (step S503), and it is determined whether or not the image data has been normally received based on the content of the response (step S504).
[0057]
If it is determined in step S504 that the reception has not been performed normally (S504-No), the process returns to step S502, and transmission of image data is attempted again.
[0058]
If it is determined in step S504 that the reception has been normally performed (S504-Yes), the image data for which transmission has been completed is deleted from the memory 212 (S505). Thereafter, the process returns to step S501, and the processes from step S502 to step S505 are repeatedly executed until all the image data is erased from the memory 212.
[0059]
By executing the above processing, the image data read by the optical unit 102 can be transferred to the image reading apparatus 100 side.
[0060]
According to the present embodiment, the image reading timing and the transfer of the read image data are performed by wireless communication between the image reading apparatus main body and the optical unit that actually reads the image, so that the apparatus main body and the optical unit are connected by a cable. No need to connect. Therefore, it is possible to avoid disconnection due to bending and elongation of the cable due to continuous use, contamination of the glass surface due to the cable rubbing against the platen glass, and generation of noise radiated from the cable.
[0061]
[Second embodiment]
In the second embodiment, “document skip reading” for reading an image of a document passing over the platen glass 101b in the image reading apparatus 100 described in the first embodiment will be described. Therefore, a schematic sectional view of the image reading apparatus is equal to FIG. 1 and a block diagram showing the configuration of the apparatus is equal to FIG.
[0062]
The difference between the case of fixed document reading, which reads an image with the document placed on the platen glass 101b described in the first embodiment, and the case of moving document reading in the present embodiment, is due to the configuration of the DF 110 used. In the case of the fixed original reading, the DF 110 is opened and closed for each job, and the user exchanges the originals. In the case of the original scanning, the originals placed on the original platen 111 are sequentially conveyed and the automatic scanning is performed. To exchange originals. In other words, the time required for one job is relatively short in the case of fixed original reading, while it is long corresponding to the number of originals in case of moving original reading. This affects the setting of the power supply capacity of the battery 214 that supplies power to each device constituting the optical unit 102. In other words, the power capacity of the battery 214 can be estimated to be low if only the fixed original reading is considered, but a battery having a higher power capacity needs to be mounted if the flow reading is also considered.
[0063]
Therefore, in the present embodiment, the arrangement is such that the power supply unit 208 on the apparatus main body side and the power receiving unit 213 on the optical unit 102 side are in contact with each other at the stop position of the optical unit 102 at the time of reading the original. In this way, power can be supplied from the main body side when the original is being read, and even when the power capacity of the battery 214 is set to be low, the optical unit can be supplied with power from the power supply unit 208 on the apparatus main body side. The purpose is to secure the electric power required to drive each unit of 102.
[0064]
FIG. 6 is a flowchart illustrating an example of a control procedure relating to image reading by the image reading apparatus 100 according to the present embodiment, in particular, image reading of a document passing over the platen glass 101b.
[0065]
From step S601 to step S607, the image reading apparatus 100 receives a command from the controller 250, issues a scan request command, and returns from the step S301 in FIG. Since the processing is the same as the processing up to step S307, the description is omitted.
[0066]
After notifying the controller 250 of the job preparation OK in step S607, the image reading apparatus 100 moves the optical unit 102 to the moving reading position in step S608. The drift reading position is a specific position where the image sensor unit 104 is disposed below the platen glass 101b, and is located in a range where the document comes into contact with the surface of the platen glass 101b by the platen roller 116 and is conveyed. In this embodiment, as described above, the flow reading position is arranged to be equal to the HP so that the power supply unit 208 of the image reading apparatus 100 and the power receiving unit 213 of the optical unit 102 are in contact with each other.
[0067]
Subsequently, in step S609, the controller 250 issues image reading start timing information, and the image reading apparatus 100 having received this information notifies the optical unit 102 of the image reading start timing. The image reading start timing is derived from the time required for the DF 110 to convey the document to the moving reading position.
[0068]
Then, in step S610, conveyance of the document is started.
[0069]
Thereafter, the process waits for image data to be transmitted from the optical unit 102 (step S611), and in step S612, the following processes (S613 to S616) are repeated until the end of image data transfer is detected. Note that the processing from step S613 to step S616 is the same as the processing from step S312 to step S315 in FIG. 3A, and a description thereof will be omitted.
[0070]
If it is determined in step S612 that the transfer of the image data has been completed (S612-No), the process proceeds to step S617, in which the CPU 201 reads out the image data stored and accumulated from the image memory 206, and After performing image processing in, the image data subjected to image processing is transmitted to the controller 250 via the external IF unit 204.
[0071]
After that, the process advances to step S618 to control the DF 110 to replace the document, that is, discharge the document and start transporting the next document. If it is not determined in step S619 that there is no next document, the process proceeds to step S618. (S619-No), the process returns to step S611, and the image data receiving process is continued.
[0072]
If it is determined in step S619 that there is no next original (S619-Yes), the optical unit is moved to the HP (step S620), the end of the job is notified to the controller 250 (step S621), and the process ends.
[0073]
The control procedure regarding image reading of the optical unit 102 and the control procedure regarding image transfer of the optical unit 102 in the second embodiment are the same as those described in the first embodiment with reference to FIGS. Detailed description is omitted.
[0074]
As described above, according to the present embodiment, the power supply unit 208 on the apparatus main body side and the power receiving unit 213 on the optical unit 102 side come into contact with each other at the stop position of the optical unit 102 at the time of performing the original scanning. In this case, power can be supplied from the main body of the apparatus at the time of original reading, and even if the power capacity of the battery 214 is set to be low, it is necessary to drive each unit of the optical unit 102. Power can be secured.
[0075]
<Other embodiments>
The present invention may be applied to a facsimile machine other than a copying machine. Further, the present invention can be applied to a device having a plurality of functions.
[0076]
Further, an object of the present invention is to provide a control program for realizing the functions of the above-described embodiments or a computer (or CPU or MPU) of an apparatus reading and executing a control program module from a storage medium storing the program. Achieved. In this case, the control program module itself realizes the functions of the above-described embodiment, and constitutes the present invention.
[0077]
Examples of a storage medium for supplying the control program module include a floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, magnetic tape, nonvolatile memory card, and ROM. Can be used.
[0078]
<Embodiments of the present invention>
Examples of embodiments of the present invention are shown below.
[0079]
(Embodiment 1) An image processing apparatus that wirelessly receives image data from an optical unit with an image reading device and processes the image data.
The optical unit,
First data generation means for generating, as first packet data, image data input by the sensor means and first additional information for controlling wireless communication of the image data;
First wireless communication means for wirelessly transmitting the generated first packet data,
The image reading device,
A second wireless communication unit that controls wireless reception of the first packet data based on the collation of the first additional information;
Image processing means for processing the image data included in the received first packet data;
An image processing apparatus comprising:
[0080]
(Embodiment 2) The image reading apparatus generates, as second packet data, command information for controlling the optical unit and second additional information for controlling wireless communication of the command information. The image processing apparatus according to the first embodiment, further comprising a data generation unit.
[0081]
(Embodiment 3) The image processing apparatus according to embodiment 1, wherein the first wireless communication unit controls wireless reception of the second packet data based on collation of the second additional information.
[0082]
(Embodiment 4) The first wireless communication means transmits response information corresponding to the command information and indicating whether or not the optical unit can be controlled to the second wireless communication means. The image processing device according to aspect 1.
[0083]
(Embodiment 5) The optical unit further includes a driving unit for moving the optical unit,
The driving unit according to claim 1, wherein the driving unit drives the optical unit in the scanning direction or positions the optical unit at a predetermined fixed position in accordance with an input format of image data specified by the command information. Image processing device.
[0084]
(Embodiment 6) The image according to Embodiment 1 or 2, wherein the first and second additional information include identification information for specifying a data transmission source and a data transmission destination. Processing equipment.
[0085]
(Seventh Embodiment) The second wireless communication unit determines whether or not the first packet data can be received based on the first additional information included in the first packet data. Image processing device.
[0086]
(Eighth embodiment) The optical unit includes:
Battery means for supplying power for operating the optical unit;
A power supply unit in the image reading device, and a power receiving unit that comes into contact with the predetermined fixed position and receives power from the power supply unit,
The image processing apparatus according to claim 1, wherein the power receiving unit supplies the received power to the battery unit.
[0087]
(Embodiment 9) The image reading apparatus further includes a conveying unit that sequentially conveys the document to a position readable by the optical unit,
When the command information instructs reading of a document conveyed by the conveyance unit, the driving unit moves the optical unit to the fixed position, and the power receiving unit receives power supply from the power supply unit. The image processing apparatus according to the first or eighth embodiment, wherein:
[0088]
(Embodiment 10) The image reading device has position sensor means for detecting that the optical unit is at the home position,
The image processing apparatus according to claim 1, wherein a contact between the power supply unit and the power reception unit is determined based on a detection result of the position sensor.
[0089]
(Embodiment 11) A method for controlling an image processing apparatus that wirelessly receives image data from an optical unit with an image reading apparatus and performs processing.
A data generating step of generating, as first packet data, image data input by the sensor and first additional information for controlling wireless communication of the image data;
A first wireless communication step of wirelessly transmitting the generated first packet data;
A second wireless communication step of controlling wireless reception of the first packet data based on the collation of the first additional information;
An image processing step for processing the image data included in the received first packet data;
A method for controlling an image processing apparatus, comprising:
[0090]
(Embodiment 12) A control program for an image processing apparatus that wirelessly receives image data from an optical unit with an image reading apparatus and processes the image data.
A data generation module for generating, as first packet data, image data input by the sensor and first additional information for controlling wireless communication of the image data, and a second module for wirelessly transmitting the generated first packet data. One wireless communication module,
A second wireless communication module that controls wireless reception of the first packet data based on the comparison of the first additional information;
An image processing module for processing the image data included in the received first packet data;
A control program for an image processing apparatus, comprising:
[0091]
(Thirteenth Embodiment) A computer-readable storage medium storing the control program according to the twelfth embodiment.
[0092]
【The invention's effect】
As described above, according to the present invention, by transmitting and receiving image data and command information for control between the image reading device and the optical unit by wireless communication, the cable between the image reading device and the optical unit is provided. No need to connect. This makes it possible to avoid disconnection due to bending and elongation of the cable due to continuous use, contamination of the glass surface due to rubbing of the cable against the platen glass, and generation of noise radiated from the cable.
[0093]
Also, even when originals are sequentially conveyed to a position readable by the optical unit and image data is input, the optical unit receives the necessary power from the power supply unit of the image reading device at a fixed position and receives continuous image data. Can be entered.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic cross-sectional structure of an image reading device according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a configuration of an image reading device according to an embodiment of the present invention.
FIG. 3A is a flowchart illustrating an example of a control procedure of the image reading apparatus during fixed original reading.
FIG. 3B is a diagram for explaining driving of an optical unit and timing of image reading.
FIG. 4 is a flowchart illustrating an example of a control procedure regarding image reading of the optical unit.
FIG. 5 is a flowchart illustrating an example of a control procedure regarding image data transfer of the optical unit.
FIG. 6 is a flowchart illustrating an example of a control procedure of the image reading apparatus at the time of moving original reading.
[Explanation of symbols]
100: Image reading device
101: Platen glass
102: Optical unit
110: Document feeder

Claims (1)

An image processing device that wirelessly receives and processes image data from an optical unit with an image reading device,
The optical unit,
First data generation means for generating, as first packet data, image data input by the sensor means and first additional information for controlling wireless communication of the image data;
First wireless communication means for wirelessly transmitting the generated first packet data,
The image reading device,
A second wireless communication unit that controls wireless reception of the first packet data based on the collation of the first additional information;
Image processing means for processing the image data included in the received first packet data;
An image processing apparatus comprising:

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