JP3880363B2 - Image processing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image processing apparatus that includes an operation unit unit including a display unit such as an LCD that can display information and that can read and record an image.
[0002]
[Prior art]
As an example of a conventional structure, a facsimile apparatus will be described with reference to FIG. In FIG. 9, reference numeral 301 denotes an operation unit in which an LCD module 302 is incorporated. Here, in the conventional facsimile apparatus, an LCD module capable of displaying about 16 × 1 line or 2 lines is adopted.
[0003]
Next, the LCD flex 304 for transmitting a signal from the LCD module is connected to the operation unit board 304 by a connector.
[0004]
On the other hand, this facsimile machine is provided with an opening on the bottom surface of the main unit cover, and a power supply unit, a network control unit, and a main control unit substrate 305 (not shown) are fixed on the bottom plate 306. A CPU (not shown) for controlling the operation of the entire apparatus and two ROMs 307a and 307b storing various programs and various data are provided.
[0005]
Further, data and information are exchanged between the operation unit board 303 and the main control board 305 by being connected by a cable or a flexible cable (not shown).
[0006]
Next, replacement of ROM (307a and 307b) of a conventional facsimile apparatus will be described with reference to FIG. In FIG. 10, first, a ROM exchanger (serviceman or manufacturing department) removes screws (not shown) and removes the bottom plate unit 308 from the main body as shown in FIG.
[0007]
Since the ROMs 307a and 307b are attached to the main control board 305 fixed on the bottom plate 306, the upper portions of the ROMs 307a and 307b are opened at this point, and ROM can be easily exchanged using this space.
[0008]
However, in information terminals such as recent facsimiles, display devices such as LCDs have been increased in size to 240 dots vertically and 320 dots horizontally. Various information exchanged through the telephone line may be displayed on a large display device, and in some cases, new information may be obtained by selecting from the displayed information. Therefore, in such an information terminal, it is necessary to instantaneously display information exchanged for improving operability on a display device.
[0009]
In recent facsimiles, there is also a device that displays a received image on an image display device such as an LCD without recording it on paper. In such a device, in order to display all received images, for example, all A4 size image information on a limited display device size, it is necessary to reduce the display, but it becomes difficult to recognize if reduced display, so an appropriate size is selected. The specification is such that the entire image received is grasped by partially displaying and scrolling the screen by the user. For that purpose, it is necessary to display the scrolled image while moving smoothly, and it is necessary to exchange a large amount of data quickly.
[0010]
In such an image processing apparatus that needs to exchange a large amount of data quickly, the distance between the display device and the control board increases the length of the cable, making it difficult to reduce radiation noise and the like. It was.
[0011]
Due to the above circumstances, recently, a layout in which a large LCD module is arranged on the operation unit and a main control board is arranged in the vicinity of the LCD module in the operation unit is used.
[0012]
[Problems to be solved by the invention]
However, when the ROM installed on the main control board is replaced by a serviceman or a assembler in the manufacturing department, the operation unit is removed from the main body, and the operation unit itself is secured until the ROM can be replaced. There is a problem that the disassembly work occurs and the operability of ROM replacement is deteriorated.
[0013]
Accordingly, the present invention provides an image processing apparatus capable of reducing radiation noise and the like while having a large LCD module and a main control board in the operation unit, and improving the operability of replacing a ROM mounted on the main control board. The purpose is to provide.
[0014]
[Means for Solving the Problems]
In order to solve the above-described problems, a typical configuration of an image processing apparatus according to the present invention includes an original conveyance path, and an image reading unit that reads image information of a conveyed original, and is positioned above the image reading unit. A first control board that is disposed above the image reading section and controls the display section and includes at least communication control means; and the first control board. A ROM for storing program data and various data detachably attached to the printer, and a lower side of the operation unit, which serves as a guide on the upper side of the document conveyance path and sandwiches the first control board A cover member that covers the first control board facing the upper surface of the operation unit, and the first control board is directly connected to the display unit, and the cover member is connected to the ROM. Opposite The ROM replacement window is provided at a position where a cover member is provided on the window, and the cover member and the operation unit are rotated integrally with the apparatus main body in order to open the document transport path. Through the window by opening the lid member Above The ROM is configured to be replaceable.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
[First embodiment]
A first embodiment of an image processing apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is an explanatory sectional view of an image processing apparatus main body according to the present embodiment, FIG. 2 is an assembled perspective view of the image processing apparatus main body provided with a display device, and FIG. 3 is an operation unit unit of the image processing apparatus provided with the display device. 4 is an exploded perspective view of the bottom plate unit of the image processing apparatus provided with the display device, FIG. 5 is a perspective view when the bottom plate unit is removed from the main body of the image processing device provided with the display device, and FIG. 6 is a display device. FIG. 7 is an explanatory cross-sectional view of the image processing apparatus main body provided with FIG. 7, FIG. 7 is an explanatory cross-sectional view of ROM replacement in the image processing apparatus provided with the display device, and FIG.
[0016]
In the following, a preferred embodiment of the present invention will be described with respect to a case where the present invention is applied to a facsimile, with reference to the accompanying drawings.
[0017]
FIGS. 1 and 2 are an assembled perspective view and a sectional view of a facsimile apparatus main body for explaining the present embodiment, respectively.
[0018]
Describing from the lower side of the apparatus, at the bottom rear is a bottom plate 74 to which a power supply board 79, a cordless handset board 78, and a second control board 76 are attached. There is a cover 24.
[0019]
The lower cover 24 includes an ASF unit 2 (Auto Sheet Feeder) that separates and feeds recording sheets one by one, and a printer unit that includes an image recording unit 3 for recording an image on the recording sheet conveyed from the ASF unit 2. 4 is configured to be detachable from the apparatus main body, and when mounted on the main body, a hand scanner unit 5 that forms a part of the document reading unit 12 and an ADF unit 6 (Auto Document Feeder) that separates and feeds documents one by one. A document reading unit 12 and a document transport unit 7 for transporting the document transported from the ADF unit 6 to the outside of the apparatus are attached to form a lower cover unit 8.
[0020]
An upper cover unit 9 constituting an exterior of the main body and a lower guide of the document conveying path 107 is provided on the upper portion of the lower cover unit 8. The upper cover unit 9 is used for operating the apparatus main body. There is an operation unit unit 15 in which an operation panel unit 10 provided with a display unit 14 indicating buttons and the state of the apparatus and an ADF frame unit 11 which is a cover member functioning as an upper guide of the document conveyance path 107 are integrated. It is pivotally attached. The display unit 206 is composed of 10,000 dots or more.
[0021]
Next, the control system of this apparatus showing the features of the present invention will be described with reference to the block diagram shown in FIG.
[0022]
In FIG. 8, reference numeral 201 denotes a facsimile main control board (first control board), an NCU board unit 203 for connecting a telephone, a display unit 206 for displaying contents inputted from an operation unit 205, and the like. Is connected to a printer interface 202b for obtaining data from a peripheral computer, and is connected to a sub-control board 202 which mainly controls a recording system.
[0023]
The main control board 201 includes at least communication control means for controlling communication and image information processing means for processing image information, as will be described below. The main control board 201 includes a CPU 201a1 that controls the entire apparatus, a ROM 201a2 that stores various programs and various data, a RAM 201a3 that is used as a work area for the CPU 201a1 and temporarily stores various data, and facsimile data. A FAX modem board unit 201e for modulating and demodulating from analog to digital from digital to analog is included.
[0024]
Reference numeral 201b denotes an ASIC including a line memory for storing an image of each line of read image data. In the case of sending or copying a document, image data for one line from the document reading system is stored. In the case of reception, the decoded data for one line is stored. The image data stored in the ASIC 201b including the line memory is added to the recording system control code through the CPU 201a1 and output to the CPU 202a1 disposed on the sub control board 202. The CPU 202a1 and the ASIC 202a2 store the recording system control code. Image recording is performed by decoding and converting the data so that it can be recorded by the printer.
[0025]
Reference numeral 201c denotes an encoding / decoding unit that encodes image information to be transmitted by MH encoding or the like, or decodes received encoded image data to convert it into image data. A buffer memory 201d stores encoded image data transmitted and received.
[0026]
In this embodiment, another modem is provided in addition to the FAX modem 201e, and information other than the facsimile exchanged through the telephone line is performed by the data modem 201f. Among the exchanged items, those related to the display need to transfer data at high speed from the viewpoint of operability, and the data is directly transferred from the facsimile main control board 201 to the display unit 206.
[0027]
Further, in this apparatus, a cordless telephone is set as a child telephone, and the cordless child device board 207 is connected to the ASIC 201b in the main control board 201.
[0028]
Next, recording control when this apparatus is used as a printer will be described.
[0029]
First, data and recording system control codes are fetched from the peripheral computer into the apparatus through the USB interface 202b. Then, the data is output to the CPU 202a1 of the sub control board 202, and the CPU 202a1 and the ASIC 202a2 decode the recording system control code to perform print recording. At this time, the CPU 201a1 of the main control board 201 is configured not to control print recording. Thus, the control is simplified by separating the facsimile control and the recording system control.
[0030]
A motor driver 202d for driving the recording motor is mounted on the sub control board 202, and is driven based on a control signal from the CPU 202a1 of the sub control board 202. On the other hand, for convenience of the apparatus, a motor driver 202c for driving the reading motor is also mounted on the sub-control board 202, and the reading motor is driven based on a control signal from the main control board 201. ing.
[0031]
Regarding power supply, the power supply board 204 is connected to the sub-control board 202, and power supply to the main control board 201 is performed through the sub-control board 202.
[0032]
Next, the recording operation will be described. The arrow S represents the conveyance direction of the recording sheet 25. Reference numeral 26 denotes a recording sheet stacking tray which is detachably provided in the apparatus main body in order to support the trailing end of the recording sheet 25 set in the ASF unit 2 so as not to hang down. A recording sheet cover 27, which is a cover of the recording sheet stacking tray 26, serves as a tray for the document 28 set in the ADF unit 6. Reference numeral 29 denotes an opening (recording sheet insertion opening) for inserting and stacking the recording sheet 25 in the apparatus main body. The pressure plate 30 is configured to be rotatable up and down around its fulcrum, and a plurality of recording sheets are stacked on the upper surface thereof. The pressing spring 31 is used to pressurize and rotate the pressure plate 30 upward, and the pressure plate 30 is held below against the pressing force of the pressing spring 31 in an initial state. The recording sheet width slider 32 is provided so as to be adjusted in the recording sheet width direction and to restrict the movement of the recording sheet in the width direction. Further, as described above, the recording sheet pickup roller 33 and the separation sheet 34 for separating the recording sheets one by one and the separated sheets are fed one by one in order to convey the recording sheets in which a plurality of sets are set one by one. A sensor 35 is provided for detecting the leading edge of the recording sheet.
[0033]
The ink cartridge 36 that can be attached to and detached from the apparatus main body for ejecting ink onto the recording sheet 25 and recording an image is reciprocated by a guide shaft 38 that serves as a guide when the ink cartridge 36 reciprocates in the width direction of the recording sheet. The A feed roller 39 that is rotationally driven by a drive source (not shown) is provided with a pinch roller 40 that is pressed against the feed roller 39 by a spring (not shown) and is driven by the feed roller, and a spur 41, A discharge roller 42 that is in pressure contact with the spur 41 is provided as shown in the figure.
[0034]
In the above configuration, when a signal to start recording is sent, a recording sheet conveyance motor (not shown) is rotated, the holding state of the pressure plate 30 is released, and the leading end of the recording sheet loaded in the opening 29 is lifted upward. At the same time, the pickup roller 33 is rotated clockwise. As a result, the upper layer portion of the recording sheet loaded on the pressure plate 30 is conveyed in the direction of arrow S in contact with the pickup roller 33, and the lower recording sheet is dammed by the separation sheet 34, so that one uppermost recording sheet is obtained. They are separated one by one and conveyed to the image recording unit 3. The leading edge of the recording sheet separated into one sheet is detected by the sensor 35, and then the motor is rotated by a predetermined number of steps so that the recording sheet is sandwiched between the feeding roller 39 and the pinch roller 40 and recorded under the ink cartridge 36. The leading edge of the recording sheet is conveyed to the position and stops temporarily. At this time, the pressure plate 30 is in a standby state in which it is held in the initial state.
[0035]
Next, the ink cartridge 36 is driven by a motor (not shown) so as to reciprocate once in the width direction of the recording sheet, and ink is ejected onto the recording sheet conveyed to the recording position to record an image. The ink cartridge 36 is provided with several lines of ink discharge nozzles in the recording sheet conveyance direction, and images of several lines are recorded by one reciprocation of the ink cartridge 36. When the operation of the ink cartridge 36 is completed for one reciprocation, the recording sheet conveying motor is rotated to convey the recording sheet 25 by the number of lines recorded by one reciprocation of the ink cartridge 36, and the next image data is newly recorded. Thereafter, the reciprocating operation of the ink cartridge 36 and the recording sheet conveying operation are sequentially repeated to record an image on the recording sheet. In this way, when the image data for one page is completed, or when the sensor 35 detects the trailing edge of the recording sheet and conveys the recording sheet for a predetermined number of steps, the recording is performed when the trailing edge of the recording sheet comes to the recording position. The recording operation for one page of the sheet is finished, and the sheet is discharged to the opening 43 provided below the front surface of the apparatus main body, and the series of operations is finished. If there is image data for the next page, the above series of operations are repeated for recording.
[0036]
Next, reading in the image reading unit will be described. The document is set at a predetermined position by an opening 44 for setting the document and a document slider 45 that regulates the width direction of the set document. The presence or absence of a document is detected by a sensor 46, and is separated into a separation piece 48 that is rotatable about a separation roller 47 and a fulcrum 48a, a spring 50 that urges the separation piece 48 counterclockwise, and a separation roller 47. Each sheet 48 is separated and conveyed along the conveyance path indicated by the arrow D by a document conveyance mechanism configured to press-contact the pieces 48.
[0037]
The feeding roller 49 is provided with a feeding roller 51 facing the feeding roller 49 so as to come into pressure contact with the feeding roller 49 by a leaf spring 52. The image reading unit includes a contact image sensor 53 (CIS) that reads image information of a document by direct contact with a sensor unit, and a reading white reference plate 54 provided at a position facing the CIS 53. By reading the white reference of the white reference plate 54 before the CIS 53 reads the original, the output level of the read signal is corrected, and the original weight from the upper side (back side) of the original is prevented during the original reading. It is configured.
[0038]
On the other hand, on the downstream side of the CIS 53, a discharge roller 55 and a driven roller 55a are arranged in pressure-contact with each other. The discharge roller 55 is pressed against the roller 55a by a leaf spring 52. In addition, a sensor 56 is provided for detecting whether the hand scanner unit 5 is attached to or detached from the apparatus main body 1.
[0039]
In the ADF unit 6 having the above configuration, when a document is set in the opening 44, the sensor 46 detects completion of document setting. Subsequently, when the operator presses a reading start button (not shown) provided on the operation panel unit 10, a reading motor (not shown) is driven to rotate, and the separation roller 47 is driven in the recording sheet conveyance direction. As a result, the document is conveyed in the downstream direction of the recording sheet conveyance direction while being rolled by the separation piece 48 that is in pressure contact with the separation roller 47, and only the lowermost sheet is separated and conveyed to the document reading unit 12.
[0040]
The document separated in this way by the ADF unit 6 is guided to the nip portion between the feeding roller 49 and the feeding roller 51, and is nipped and conveyed. When the leading edge of the document is detected by a sensor (not shown) provided near the feeding roller 49, the reading motor rotates after a predetermined number of steps and then stops, and the document is stopped at a predetermined position before the CIS 53.
[0041]
Thereafter, the CIS 53 reads the shading data of the white reference plate 54 and corrects the output level of the read signal. Then, the reading motor is rotated again to convey the document by a predetermined number of steps to reach the reading line of the CIS 53, and then the lower surface of the document is sequentially read line by line.
[0042]
The document that has been read is guided to the nip portion between the discharge roller 55 and the roller 55a, is nipped and conveyed, and is discharged from the opening 57 provided on the front surface of the apparatus to the outside of the apparatus. When a plurality of documents are set, the reading motor is rotated until the sensor 46 detects that there is no document, the ADF unit 6 separates and conveys the documents one by one, and sequentially reads the image data with the CIS 53 repeat.
[0043]
Next, the configuration of the operation panel unit 10 will be described. The user interface of the operation panel unit 10 includes operation buttons 13 and a display unit 14. The operation button 13 performs other functions such as input of a telephone number, facsimile transmission, and reception. Further, the operation button 13 is in contact / non-contact with the key top 58, the rubber key 59 that functions as a switch and gives an operation feeling (click force) of the button, and carbon printed on the back surface of the rubber key. A carbon pattern for switching ON / OFF of the key is printed, and is configured of an operation board 60 for controlling the operation unit.
[0044]
The display unit 14 informs the user by displaying a telephone number and the state of the apparatus, for example, “faxing in progress”. Further, the display unit 14 is pivotally supported by the operation panel unit housing 61 so as to be rotatable.
[0045]
Thus, for example, when the user operates with the user standing, the user can perform the operation at an angle that is most easily viewable by laying the display unit 14 down. Further, when an operation is performed while sitting on a chair, the display unit 14 can be erected to perform an operation at an easy-to-see angle. Furthermore, the display content of the display unit can be confirmed even from a distant position by raising the display unit. For example, it can be confirmed without going to the facsimile, such as when receiving a caller ID call.
[0046]
Next, the configuration of the display unit 14 will be described. In the figure, the display unit 14 is an exterior and an LCD lower cover 62 and an LCD upper cover 63 that hold internal components, an LED (not shown) that serves as a light source of a backlight, and an LED on which the LED is mounted A light guide plate 64 formed of a transparent resin such as acrylic for guiding the light of the substrate and the LED to the back surface of the LCD module, and a diffusion sheet 65 for diffusing the light guided by the light guide plate 64 to uniformly emit light An LCD module 66 for displaying information, an earth sheet 67 serving as a lightning rod for static electricity from the outside, a clear cover 68 made of a transparent resin covering the surface of the LCD, an operation button 69 molded integrally with the LCD upper cover, and the operation button A switch board 90 on which a switch 70 facing 69 is mounted. Four operation buttons 69 are laid out directly below the LCD of the display unit, characters are displayed at positions corresponding to the operation buttons below the display unit of the LCD, and keys corresponding to the displayed characters are operated. The display contents of the LCD can be selected.
[0047]
Next, the electrical layout of the entire apparatus will be described. 3 is an exploded perspective view of the operation unit 15, FIG. 4 is an exploded perspective view of the bottom plate unit, and FIG. 5 is a perspective view when the bottom plate 74 is removed from the main body. As shown in FIG. 3, a first control board 71 (referred to as a main control board) that controls the entire apparatus including the display unit (controls operations other than recording) is in the operation unit unit 15 and is provided on the operation board 60. It is attached to the underside.
[0048]
Further, as shown in FIG. 5, the NCU board 73 is attached to the lower cover 24, and the position thereof is above the space formed by the lower cover 24 and the bottom plate 74, and a modular terminal 75 mounted on the NCU board 73. Engages with a hole 75a provided on the rear surface of the apparatus.
[0049]
Further, as shown in FIG. 4, the bottom plate 74 is formed of a metal plate, and the bottom plate 74 has a second control board 76 (hereinafter referred to as a sub-control board) for controlling the recording operation of the image recording unit 3 and a wireless unit 77. Are connected to a power supply board 79 for supplying electricity to each device and each board.
[0050]
The sub control board 76 is arranged at the right end on the front side in order to arrange the interface 80 (USB) with the PC mounted on the sub control board 76 on the side surface of the apparatus, and the cordless slave unit board 78 is arranged on the left rear side of the apparatus. The power supply board 79 is arranged on the rear left side in order to bring the power cable 82 out of the apparatus from the rear of the apparatus. The antenna 81 is fastened to the cordless child device board 78 via the antenna holder 83 in order to insulate it from the bottom plate 74.
[0051]
Next, connection of each substrate will be described. In FIG. 3, from the end face on the front side of the display unit 14, an LCD flexible board 84 formed integrally with the LCD module 66, an LED cable 85 coming out of the LED board, a GND cable 86a fastened to the earth sheet 67, and a switch board. Switch board flexible 87 attached to 90 appears.
[0052]
These cables and flexible cables are accommodated in the operation unit 15 through the holes 61a of the panel cover 61, and the LED cable 85 and the switch circuit board flexible cable 87 are connected to connectors mounted on the back surface of the operation circuit board 60, respectively. The flex 84 passes through a gap between the operation board 60 and the main control board 71 and is connected to a connector mounted on the back side of the front side of the main control board 71. The operation board 60 and the main control board 71 are connected by a flexible cable 88.
[0053]
That is, the LCD module 66 is directly connected to the main control board 71, and the LED and switch board 90 are connected via the operation board 60. By directly connecting the LCD module 66 and the main control board 71, the influence of the noise of the LCD module 66 on the display of high-density data such as color display and FAX reception data display and high-speed data display such as moving images, etc. It can be minimized to prevent erroneous display or locking.
[0054]
The GND cable 86a is connected to the bottom plate 74. The hand scanner unit 5 is connected to the main control board 71 by a hand scanner cable 89 formed in a spiral shape so that it can be expanded and contracted. The hand scanner cable 89 is housed inside the apparatus from a notch 61b on the side of the panel cover 61. ing.
[0055]
In the area on the left side of the main control board 71, the first flexible board 91 connected to the secondary control board 76, the flexible board 92 connected to the NCU board 73, the flexible board 93 connected to the cordless board, and the secondary control board 76 are provided. A power cable 94 for supplying electricity from the power supply board 79 to the main control board 71 and a GND cable 86b connected to the bottom plate 74 are connected. Further, in the area on the right side of the main control board 71, a second cable 95 for connecting the hand scanner cable 89 and the sub power supply board 76 for connecting the hand scanner unit 5 and the main control board 71 is connected.
[0056]
Also, the ADF frame 96 is integrally molded with arms 97 on both rear sides so that the ADF frame 96 can be pivotally attached to the main body. And the cable comes to come out. Specifically, the left arm 97 has three flexible cables, one cable, and three GND cables, the right arm 97 has one cable, and the right side has a hand scanner cable 89. Will be out.
[0057]
Further, these cables and flexes are engaged with an arm 97 formed on the upper cover 98 and pass through a hole penetrating to a bottom plate 74 formed adjacent to a portion serving as a rotation center of the operation unit unit 15, As shown in FIG. 5, the bottom cover 74 comes out from the back surface of the lower cover 24 through the holes 24a and 24b. That is, the cable and the flexible cable coming out of the operation unit unit 15 are connected to the opposing substrates through the two left and right paths. Further, the left hole 24a is divided into two parts by a wall and separates the route of the GND cable and other cables.
[0058]
Further, from the lower cover 24, a cable 99 of a sensor for detecting the mounting state of the hand scanner, a bundle 100 of motors for supplying power to each roller of the image recording unit 3, an ink cartridge 36 and a sub control board 76 are provided. A carriage flex 101 for connection, a sensor cable 102 for detecting the presence or absence of the recording sheet 25, a motor bundle 103 for moving the ink cartridge 36 of the image recording unit 3, and a left side surface of the apparatus. A speaker cable 105 of the speaker 104, a motor bundle 106 for supplying power to each roller of the document reading unit 12, and a GND cable 86c are provided.
[0059]
These cables are connected to predetermined connectors on the sub control board 76, the NCU board 73, and the power supply board 79, respectively. In order to prevent lightning, the NCU board 73 and the power supply board 79 are connected by a GND cable 86d. Here, as described above, the cable connecting the main control board 71 and the sub control board 76 is divided into two and connected from different positions on the left and right.
[0060]
This is for the following reason. These cables are required to have a length of about 300 mm to 500 mm in view of assemblability, and are liable to be interfered with by respective signals and are liable to malfunction and lock. Therefore, a high-speed signal line that is likely to emit noise is separated from a low-speed signal line that is susceptible to noise, and the signal line and power line that are likely to emit noise pass through the left side of the main unit and are susceptible to noise. The signal line alone is connected to the sub control board 76 through the right side.
[0061]
In addition, since the GND cables 86a, 86b, and 86c serve as lightning rods when the device body is subjected to static electricity, the potential may fluctuate greatly. This may affect other signal lines and cause malfunction or lock. For this reason, the signal line and the power supply line are prevented from coming into contact with each other through different holes.
[0062]
Next, ROM exchange will be described.
[0063]
As shown in FIG. 6, the operation unit 15 is pivotally attached to the main body, but its opening / closing angle is such that the ink cartridge 36 can be replaced and the JAM processing of the original can be performed. More specifically, the upper surface opens at an angle of about 70 ° with respect to the lower surface 108 of the document conveyance path 107.
[0064]
A damper arm 110, which is a stopper member formed in an arc shape with a rotation fulcrum 109 of the operation unit unit 15 as the center, is attached to the ADF frame 96, and teeth 111 are cut outside the damper arm 110. A gear with a rotational load in one direction is attached to the main body so as to engage with the teeth 111, and the damper arm 110 and the gear operate in a relationship between a rack and a pinion, and the above-mentioned rotational load acts when the operation unit is closed. It acts as a damper when tightening the operation unit 15.
[0065]
Further, a groove 112 is opened at the tip of the damper arm 110, and by engaging with a boss (not shown) formed in the upper cover 63, the damper arm 110 functions as a stopper so that the operation unit is not opened at an angle of 70 ° or more. .
[0066]
As shown in FIG. 7, the engagement between the boss and the groove 112 cannot be released at the user level, but the claw is deformed by using a tool to remove the groove 112 and the boss so that the operation unit unit 15 is in the vertical state. It is possible to open up to. Two ROMs 113a and 113b are mounted on the upper side of the document conveyance path 107 of the main control board 71, and a window 114 is opened at a position facing the ROMs 113a and 113b of the ADF frame 96. A lid 115 as a member is attached, the back side is hooked with a nail, and the front side is fixed with a screw.
[0067]
With the above configuration, since the operation unit 15 is opened only at 70 ° at the user level, the screw of the lid 115 cannot be removed. Claws of The ROM 113a and 113b cannot be removed because there is no space for extracting the ROM 113a and 113b. However, at the time of repair at the manufacturer or assembly at the factory, the operation unit 15 can be opened vertically by removing the stopper with a tool, and the lid 115 can be removed, and the ROMs 113a and 113b themselves are also removed. It becomes possible.
[0068]
【The invention's effect】
As described above, the first control board that controls the entire apparatus including the control of the display section is provided between the cover member and the operation section, thereby shortening the distance between the display section and the board that controls the first control board. In addition, it is possible to exchange data at a high frequency and prevent voltage drop of the data signal, thereby preventing malfunction and preventing electrical noise such as radiation noise. In addition, a large LCD module can be arranged on the operation unit, which can cope with diversification of display information.
[0069]
Further, a first control board for controlling the entire apparatus and a substrate for controlling the operation section are provided between the operation section and the cover member, and a display section attached to the operation section is a first control board for controlling the entire apparatus. Can be connected at the shortest distance.
[0070]
The cover member is provided with a lid member, and the ROM is arranged at a position where the cover member is projected onto the first control board. Thereby, the removable ROM attached to the main control board can be easily exchanged by opening the cover member provided on the cover member arranged at the position facing the upper surface of the operation unit covering the first control board. As a result, assembly operability in a service person or a manufacturing department becomes easy.
[0071]
The operation unit is pivotally supported at one end and attached to the main unit, and a rotation angle of the operation unit is determined by a stopper member fixed to the operation unit. Thus, for example, when the cover member also serves as a document reading conveyance guide, the operation unit is pivotally supported at one end during document jam processing so that the document path can be easily rotated. Can be opened, and operability of document jam processing becomes easy. Further, when the image recording unit is arranged in the lower part of the document transport path, the upper part of the image recording unit can be opened by rotating the operation unit even when the cartridge of the recording unit is replaced. The replacement work becomes easy.
[0072]
Also, the lid provided on the cover member covering the main control board cannot be removed in a state where the operation portion pivotally supported at one end is rotated and opened to the maximum by the stopper member. The lid member can be removed by removing the stopper portion. Thereby, it is possible to prevent the ROM from being exchanged at the user level.
[Brief description of the drawings]
FIG. 1 is an explanatory cross-sectional view of an image processing apparatus main body according to a first embodiment.
FIG. 2 is an assembled perspective view of an image processing apparatus main body including a display device.
FIG. 3 is an exploded perspective view of an operation unit unit of an image processing apparatus including a display device.
FIG. 4 is an exploded perspective view of a bottom plate unit of an image processing apparatus including a display device.
FIG. 5 is a perspective view when the bottom plate unit is removed from the main body of the image processing apparatus including the display device.
FIG. 6 is an explanatory cross-sectional view of an image processing apparatus main body including a display device.
FIG. 7 is an explanatory cross-sectional view of ROM replacement in an image processing apparatus provided with a display device.
FIG. 8 is a control block diagram of an image processing apparatus including a display device.
FIG. 9 is a cross-sectional view of a conventional image processing apparatus.
FIG. 10 is a cross-sectional view for explaining ROM replacement according to a conventional embodiment.
[Explanation of symbols]
1 ... Bottom plate unit
2 ... ASF part
3 Image recording unit
4 ... Printer unit
5 ... Hand scanner
6 ... ADF part
7: Document transport section
8 ... Lower cover unit
9 ... Upper cover unit
10 ... Control panel
11… Frame unit
12 ... Original reading section
13… operation buttons
14… Display unit
15… Control unit
24… Bottom cover
24a… hole
24b ... hole
25… Recording sheet
26… Recording sheet stacking tray
27… Recording sheet cover
28… manuscript
29… Opening
30… pressure plate
31… Pressing spring
32… Recording sheet width slider
33… Pickup roller
34… Separation sheet
35… Sensor
36… Ink cartridge
38… Guide shaft
39… feed roller
40… Pinch roller
41… Spur
42… discharge roller
43… Opening
44… Opening
45… Original slider
46… Sensor
47… Separation roller
48… Separation piece
48a… fulcrum
49… feed roller
50… Spring
51… Feed roller
52… leaf spring
53 Contact image sensor
55… discharge roller
55a ... Roller
56… Sensor
57… Opening
58… key top
59… Rubber key
60… Operation board
61… Control panel housing
61b ... Notch
62… LCD lower cover
63… Top cover
64 Light guide plate
65… Diffusion sheet
66… LCD module
67… Earth sheet
68… Clear cover
69… operation buttons
70… Switch
71 ... 1st control board
73… NCU board
74… Bottom plate
75… Modular terminal
75a… hole
76 ... Second control board
77… Wireless unit
78… Cordless cordless handset board
79… Power supply board
80… Interface
81… Antenna
83… Antenna holder
84… Flexible
85 ... LED cable
86a, 86b, 86c ... GND cable
87… Switch board flexible
88… Flexible cable
89… Hand scanner cable
90… Switch board
91, 92, 93… flexible
94… Power cable
95 ... Second cable
96 ... ADF frame
97… arm
99… Cable
100… bundled wire
101 ... Carriage flex
102… Cable
103… Bundled wire
104… Speaker
105… Speaker cable
106 Bundled wire
107 ... Document transport path
108… bottom surface
109… fulcrum
110… Damper arm
111… Teeth
112… Groove
113a, 113b ... ROM
114… window
115… lid
201… Main control board
201a1 ... CPU
201a2 ... ROM
201a3 ... RAM
201b ... ASIC
201c ... Encoding / decoding part
201d Buffer memory
201e Modem board unit
201f ... Data modem
202a1 ... CPU
202a2 ... ASIC
202b ... Printer interface
202c, 202d ... Motor driver
203… Board unit
204… Power supply board
205… Operation part
206… Display section
207… Cordless cordless handset board

Claims (9)

An image reading unit that includes a document transport path and reads image information of a document to be transported;
An operation unit unit located above the image reading unit and having a display unit disposed on the upper surface;
A first control board positioned above the image reading unit and controlling the display unit and including at least a communication control unit;
ROM for storing program data and various data detachably attached to the first control board;
A cover provided on the lower side of the operation unit, serving as a guide on the upper side of the document conveyance path, and covering the first control board facing the upper surface of the operation unit with the first control board interposed therebetween A member, and
The first control board is directly connected to the display unit,
The cover member has a window for replacing the ROM at a position facing the ROM, and a lid member is provided on the window.
In order to open the document conveyance path, the cover member and the operation unit unit are held integrally and rotatably with respect to the apparatus main body,
An image processing apparatus, wherein the ROM is configured to be exchangeable through the window by opening the lid member. An image reading unit that includes a document transport path and reads image information of a document to be transported;
An operation unit unit located above the image reading unit and having a display unit disposed on the upper surface;
A first control board that is located above the image reading unit, controls the display unit, and includes image information processing means for processing at least image information;
ROM for storing program data and various data detachably attached to the first control board;
A cover member provided on the lower side of the operation unit, serving as a guide on the upper side of the document conveyance path, and covering the first control board facing the upper surface of the operation unit unit across the first control board; Have
The first control board is directly connected to the display unit,
The cover member has a window for replacing the ROM at a position facing the ROM, and a lid member is provided on the window.
In order to open the document conveyance path, the cover member and the operation unit unit are held integrally and rotatably with respect to the apparatus main body,
An image processing apparatus, wherein the ROM is configured to be exchangeable through the window by opening the lid member.   An image recording unit for recording an image on a recording sheet is provided below the image reading unit of the apparatus main body, and a second control board for controlling the image recording unit is provided below the image recording unit. Item 3. The image processing apparatus according to Item 1 or 2.   The image processing apparatus according to claim 3, further comprising: the first control board and an operation board that controls the operation part unit between the operation unit and the cover member.   The image processing apparatus according to claim 1, wherein the display unit is configured with dots of 10,000 dots or more.   The image processing apparatus according to claim 1, wherein a power supply board and a telephone line control board are provided below an image recording unit provided in the apparatus main body.   The image processing apparatus according to claim 1, wherein the display unit is rotatably held with respect to the operation unit unit.   The operation unit is pivotally supported at one end and attached to the main unit, and a groove formed in a stopper member fixed to the operation unit is rotatable integrally with the operation unit. The image processing apparatus according to claim 1, wherein a rotation angle of the operation unit is determined by engaging a boss formed on the cover member. The lid member is hooked to the window with a nail on the back side, and the front side is fixed with a screw,
The screw cannot be removed in a state where the operation unit unit is rotated to the maximum regulated by the engagement between the groove and the boss. The image processing apparatus according to claim 8, wherein the image processing apparatus is configured to be removed by being opened.

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