JP2007161369A - Recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of an automatic opening/closing device of a paper delivery tray, wherein a breakdown occurs when forcibly opening and misalignment of a cover occurs when closing. <P>SOLUTION: A solenoid is provided in a main body, and a permanent magnet is provided in the opening/closing tray so that the tray is closed by the power of the magnet when it is closed and so that the tray is opened by repelling power of the electromagnet when it is automatically opened. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a paper discharge tray of an apparatus having a recording unit, such as a facsimile, a copying machine, and a multifunction machine.

  Conventional examples are shown in FIG. 21, FIG. 22, and FIG.

  FIG. 21 is a perspective view of the opening mechanism of the paper discharge tray 131, and FIG. 22 is an enlarged view of the closing unit 300. FIG. As shown in FIG. 21, one of the rotation centers is connected to the opening unit 300. In FIG. 22, the cam gear 302 is connected to the paper discharge tray 131, and the rotation angle of the cam gear 302 and the rotation angle of the paper discharge tray 131 are synchronized. In the closed state, the discharge tray 131 is pressed in the opening direction by the torsion coil spring 303. However, since the movable plate 301a of the solenoid 301 is engaged with the stepped portion 302a of the cam gear 302, it is held in a closed state. When the solenoid 301 is actuated by the electrical signal and the movable plate 301a moves in the direction of the arrow H, the cam gear 302 is pressurized and thus rotates in the direction of the arrow I. The cam gear 302 is initially pressed by the torsion coil spring 303, but the applied pressure is eliminated in the middle. This is because the paper discharge tray 131 can be opened by its own weight. The cam gear 302 meshes with the oil damper 304 through the idler gear 306 from the middle. As a result, the speed at which the paper discharge tray 131 opens is slowed down, and an impact sound when the paper discharge tray 131 lands can be suppressed. The paper discharge tray key 305 can press the movable plate 301a in the direction of arrow J from the outside of the main body, and can manually release the lock of the cam gear 302a, not electrically. The paper tray 131 can be opened.

Further, as a mechanism for automatically opening the paper discharge tray, there is a mechanism as shown in Patent Document 1.
JP-A-8-67395

  The conventional configuration has the following problems.

  1. Since the rotation angle is determined near the center of the tray, if a slight variation in the angle occurs, the leading end angle of the tray varies, resulting in a problem in appearance when the tray is closed.

  2. If you try to force open the tray without pressing the paper output tray key, a large force will be applied near the center of rotation, which could destroy the center of rotation of the tray in the worst case. .

  A solenoid is provided in the vicinity of the tip that contacts when the tray of the main body is closed, and a permanent magnet is provided at the tip of the tray.

  By the above means, the tray can be automatically opened and closed, and the position angle is determined in the vicinity of the front end of the tray, so that the appearance can be easily matched. Also, if you try to forcibly pull it open, the magnet will only be opened, so the main body will not be damaged.

  Next, an image reading apparatus according to an embodiment of the present invention will be described.

  An image reading and recording apparatus according to this embodiment will be described with reference to the drawings.

  FIG. 1 is a perspective view of the present embodiment. FIG. 2 is a central sectional view. As shown in FIG. 1 and FIG. 2, it is composed of a panel unit 1, a scanner unit 2, a recording unit 3, an electric board unit 4, and a card slot unit 5.

  First, the panel unit 1 will be described.

  3 is an enlarged view of the panel portion, FIG. 4 is a diagram showing the LCD lifted up, FIG. 5 is a panel unit stopper explanatory diagram 1, FIG. 6 is a panel unit stopper explanatory diagram 2, FIG. 7 is a cross key perspective view, FIG. 8 is a cross key structure diagram.

  As a structure, each key 13 is fitted to the panel cover left 11a and the panel cover right 11b. The color start key 13a, the monochrome start key 13b, the stop key 13c, the cross key 13d, the mode key 13e, the power key 13f, and the function key 12g are each integrally composed of one or more keys. It is attached in the cover 11. A tact switch (not shown) is soldered under the key 13 on the panel substrate 16. An LCD module (not shown) and an electric board are built in the LCD unit 12 and attached to the surface of the transparent LCD window 12a. The LCD unit 12 is configured to be rotatable about the hinge 12b and can be operated by the user. Also, as shown in FIG. 4, the LCD unit 12 has a maximum opening / closing angle of about 110 degrees with respect to the horizontal plane. These rotation stoppers maintain this angle by colliding with the stopper rib 12C of the LCD unit of FIG. 5 and the stopper groove 11C of the panel cover of FIG. When the LCD unit 12 is forcibly pulled to open 110 degrees or more, 11d in FIG. 9 is designed to have a slight gap, and interferes at 11d before the stopper breaks. Further, in a normal state, the 11d portion has a gap of about 1 mm so as not to be damaged by opening and closing.

  FIG. 7 is a diagram showing the structure of the cross key 13d. The cross key 13d has a double structure of a cap portion 13d-1 and a base portion 13d-2 as shown in FIG. The cap portion 13d-1 is painted, and the base portion 13d-2 is not painted. The reason for the double structure is that when both are made integrally, masking must be performed so that the exterior portion not coated is not coated. The cap portion 13d-1 and the base portion 13d-2 are assembled with a light press fit.

  The panel unit 1 is attached to the scanner unit 2 as a whole.

  Next, the scanner unit 2 will be described.

  FIG. 10 is a view of the main body when the document is set, and is a glass 23 on which the document is set face down. The glass 23 is pressed from above by a cover 125. The pressure plate 21 is attached to a pressure plate 21 that suppresses the floating of the document, and a pressure plate white sheet 22 composed of a sponge and a white sheet. The pressure plate 21 is attached via a hinge 124. FIG. 11 shows the internal structure of the scanner unit 2 with the glass 23 and the cover 125 removed from FIG. The CCD reading unit 24 has both pictures when moved to the left end and the right end. All these internal parts are attached to the scanner frame 120. A CCD reading unit 24 for reading an image is guided and moved on a shaft 25 and a rail 121. The CCD reading unit 24 is decelerated by the drive gear unit 122 using a motor as power, and is driven via the timing belt 26. The timing belt 26 is hung on a pulley (not shown) opposite to the drive gear portion 122. Explaining these operations, the CCD reading unit 24 is driven in the direction of the arrow B during the copying or scanning operation from the PC, and reads the document through the glass 23.

  Next, the operation when reading a film will be described. As shown in FIG. 12, the sponge frame 22a can be removed, and the surface light emitting portion 21a, which is a part of the pressure plate 21, is exposed. In order to read the film, it is necessary to transmit light through the film, so that a light source is provided above the document surface. The film guide 221 is accommodated in the removed sponge frame 22a as shown in FIG. 13, and can be removed as shown in FIG. As shown in FIG. 15, the removed film guide 221 is set on the glass 23, the fixing member 221a is raised, a negative film (not shown) is set, and the fixing member 221a is lowered and fixed again. Thereafter, the pressure plate 21 is closed and the preparation for reading the film is completed.

  Next, a structure in which the scanner unit 2 is attached to the main body will be described. As shown in FIG. 16, one link member 222 is attached to the scanner unit 2 on the left and right. FIG. 17 is a view when the scanner unit 2 is opened, and the hinge portion 120a of the scanner frame 120 is in the bearing portion 231b of the middle frame 231. The link 222a is locked so as to get on the abutting portion 231a of the middle frame 231 and is restricted in the direction of the arrow D. FIG. 19 is a cross-sectional view of the link 222 and the middle frame 231. The states of FIGS. 17 and 18 are on the abutting portion 231 in the state (1). When a certain force is applied in the direction D from this state, the lock is released, the scanner sinks in the order of (2) and (3), and the normal state of FIG. FIG. 20 is a partial view of the lock in the direction of arrow E in FIG. 17. The lock portion 120b of the scanner frame and the lock portion 231c of the middle frame are engaged with each other to prevent rotation from the state of FIG. It is out. With such a configuration, it is not necessary to hook the link to the fixed portion in advance, compared with the case where the E-direction lock is provided on the link portion, and assembly can be facilitated.

  Next, the recording unit 3 will be described.

As shown in FIG. 2, the recording paper 100a is conveyed in the direction of arrow C.
The stacked recording paper 100a is pushed up by an intermediate plate 36 by a cam (not shown), and separated and fed into a single sheet by a paper feed roller 34 and a separation roller 35. This separation mechanism is actually driven by a paper feed roller 34, and the separation roller 35 does not rotate unless a certain torque is applied in the rotation direction. When entering, since the force for rotating the separation roller is stronger than the force for separating the paper, the recording paper can be conveyed one by one. The document separated by these rollers is conveyed between the conveyance roller 37a and the pinch roller 37b, and is conveyed to the inkjet printing unit at a constant speed. FIG. 29 shows the cartridge door 133 opened from the front, and FIG. 31 shows the cartridge door opened from the side. A cartridge 39 and an ink tank 38 for each color, which integrally form a print head, are mounted on the ink jet printing unit. The cartridge 39 is guided by the guide shaft 134 and moves in a direction perpendicular to the recording paper feeding direction to print on the recording paper. The printed recording paper is discharged to the recording paper discharge tray 131 by the discharge roller pair 130. The paper discharge tray 131 is automatically opened with the start of recording printing. This prevents the user from forgetting to open the paper discharge tray 131 and causing the recording paper to jam.

  Regarding the paper discharge tray 131, when the scanner unit 2 is raised in the direction of arrow F, it automatically opens in the direction of arrow G. This can be automatically opened according to the principle of explanation of the electric board unit described later.

  Next, the automatic opening mechanism of the paper discharge tray 131 will be described.

  FIG. 35 is a diagram of the discharge tray opening mechanism of the present invention, and shows a state where the discharge tray 131 is open.

  In FIG. 35, the solenoid 302 is disposed at the position shown in the figure, and when a current is passed, the cylindrical portion at the tip becomes an electromagnet and magnetizes.

  A permanent magnet 301 is formed on a part of the paper discharge tray 131. FIG. 36 is a view when the paper discharge tray is closed, and the permanent magnet 301 and the iron part of the solenoid 302 are attracted. In this state, if the paper discharge tray 131 is pulled by hand in the direction K, it can be prepared because it is only attracted by the force of the magnet. When a current is passed from the main body to the solenoid 302, the tip of the magnet has the same polarity as the permanent magnet 301, and the tip of the permanent magnet 301 and the solenoid 302 are repelled. The paper discharge tray 131 receives the repulsive force and opens in the direction K by its own weight, and is in a state as shown in FIG. Further, even when the paper discharge tray 131 is closed as shown in FIG. 1, it is configured so as to be matched with the other exterior portion of the apparatus depending on the position of the magnet.

  When the ink tank is replaced by this automatic opening mechanism, the scanner unit 2 is first raised in the direction of arrow F. Thereby, the paper discharge tray 131 is opened by the automatic opening mechanism described above. Next, the cartridge door 133 is opened as shown in FIG. 24 to move to a position where the user can replace the ink tank. In this state, the user can exchange the ink tank 38 from the outside.

  Note that, among the ink jet recording methods used in the present embodiment, a means (for example, an electrothermal converter or a laser beam) for generating thermal energy as energy used for ink ejection is provided, and the heat The description has been given of the printing apparatus in which the state change of the ink is caused by the energy. However, according to such a system, it is possible to achieve high recording density and high definition.

  As its typical configuration and principle, for example, those performed using the basic principle disclosed in US Pat. Nos. 4,723,129 and 4,740,796 are preferable. This method can be applied to both the so-called on-demand type and continuous type. In particular, in the case of the on-demand type, it is arranged corresponding to the sheet or liquid path holding the liquid (ink). By applying at least one drive signal corresponding to the recording information and applying a rapid temperature rise exceeding the film boiling to the electrothermal transducer, the thermal energy is generated in the electrothermal transducer, and the recording head This is effective because film boiling occurs on the heat acting surface of the liquid, and as a result, bubbles in the liquid (ink) corresponding to the drive signal on a one-to-one basis can be formed. By the growth and contraction of the bubbles, liquid (ink) is ejected through the ejection opening to form at least one droplet. When the drive signal is pulse-shaped, the bubble growth and contraction is performed immediately and appropriately, and thus it is possible to achieve the discharge of liquid (ink) with particularly excellent responsiveness.

  As this pulse-shaped drive signal, those described in US Pat. Nos. 4,463,359 and 4,345,262 are suitable. Further excellent recording can be performed by employing the conditions described in US Pat. No. 4,313,124 of the invention relating to the temperature rise rate of the heat acting surface.

  As the configuration of the recording head, in addition to the combination configuration (straight liquid flow path or right-angle liquid flow path) of the discharge port, the liquid path, and the electrothermal transducer as disclosed in each of the above-mentioned specifications, the heat acting surface The configurations using US Pat. No. 4,558,333 and US Pat. No. 4,459,600, which disclose a configuration in which is disposed in a bending region, are also included in the present invention. In addition, Japanese Patent Application Laid-Open No. 59-123670, which discloses a configuration in which a common slot is used as a discharge portion of an electrothermal transducer, or an opening that absorbs a pressure wave of thermal energy is discharged to a plurality of electrothermal transducers. A configuration based on Japanese Patent Laid-Open No. 59-138461 disclosing a configuration corresponding to each part may be adopted.

  Furthermore, as a full-line type recording head having a length corresponding to the width of the maximum recording medium that can be recorded by the recording apparatus, the length is satisfied by a combination of a plurality of recording heads as disclosed in the above specification. Either a configuration or a configuration as a single recording head formed integrally may be used.

  In addition, the ink is integrated into the replaceable chip type recording head or the recording head itself, which can be electrically connected to the apparatus main body and supplied with ink from the apparatus main body by being attached to the apparatus main body. A cartridge type recording head provided with a tank may be used.

  In addition, it is preferable to add a recovery means for the recording head, a preliminary auxiliary means, etc. provided as a configuration of the recording apparatus of the present invention, since the effects of the present invention can be further stabilized. Specifically, capping means, cleaning means, pressurizing or suction means for the recording head, preheating means using a heating element different from this, or a combination thereof, or recording is used. Performing a preliminary discharge mode for performing another discharge is also effective for performing stable recording.

  Further, the recording mode of the recording apparatus is not limited to the recording mode of only the mainstream color such as black, but the recording head may be integrated or may be a combination of a plurality of colors. An apparatus having at least one of full colors can also be provided.

  Next, the electric substrate unit 4 and the overall layout will be described.

  FIG. 25 is an overall view of the electric board, and FIGS. 26, 27, and 28 are diagrams showing an assembling method. In FIG. 26, first, a control board 402 and a card board 403 are attached to a metal PCB holder 401. Next, a PCB cover 404 made of a highly flame-retardant plastic material is attached. Thereby, an electric board | substrate can be completely covered with a flame-retardant thing. Further, as shown in FIG. 28, the photo interrupter 405 is attached on the PCB cover 404. This fat interrupter 405 is a sensor for detecting when the scanner unit 2 is opened as shown in FIG. 29, and the projection 120d of the scanner frame 120 is attached to the middle frame 231 as shown in FIG. When the scanner unit 2 is closed by pushing the sensor lever 406, the fat interrupter 405 is blocked. This corresponds to the movement of the carriage during ink replacement. FIG. 32 shows a method of assembling the side cover 151 as a part of the exterior on these electric board portions. FIG. 33 shows a method of assembling the card substrate cover 152. This is because the openings of the memory card slots 403a and 403b mounted on the card substrate 403 have a width of only about 1 mm. For this reason, the card board cover 152 is a separate part, and the card board cover 152 is positioned by inserting the bosses 152a and 152b of the card board cover in FIG. The card holes 152g and 152h of the card board cover 152 and the memory card slots 403a and 403b can be aligned with each other by fixing them with the claws 152c, 152d, 152e and 152f.

  Next, an example of the operation of the image reading and recording apparatus will be described. Operate by operating the keys on the panel shown in FIG. For example, an operation when copying is described. Press the power key 13f. Next, the copy key 13e-1 is selected with the function key 13e. The menu key 13d-1 selects the image quality and the medium to be recorded, and the arrow key 13d-2 sets the number of copies. Thereafter, the pressure plate 21 is opened, and a document to be copied is set on the glass 23. The recording paper is set on the recording paper tray 32, and the color start key 13a is pressed when performing color copying at the end, and the monochrome start key 13b is pressed when performing monochrome copying. As described above, the keys of the panel unit 1 are arranged so that all the operations can be performed naturally without operating by operating from the left to the right in the operation order. Although an example of the operation method has been described with respect to copying, when scanning is selected with the first function key 13e, scanning from a PC connected through USB can be performed. When a photograph is selected, the image inserted in the card slot unit 5 can be recorded directly on the recording unit 3.

1 is a perspective view of an image reading and recording apparatus according to an embodiment of the present invention. Sectional drawing of the image reading and recording apparatus based on the Example of this invention The enlarged view of the panel part of the image reading and recording apparatus based on the Example of this invention LCD rotation diagram of panel portion of image reading and recording apparatus according to embodiment of the present invention FIG. 1 is an explanatory diagram of an LCD unit hinge of an image reading and recording apparatus according to an embodiment of the present invention. FIG. 2 is an explanatory view of the hinge of the LCD unit of the image reading and recording apparatus according to the embodiment of the present invention. Enlarged view of the cross key of the image reading and recording apparatus according to the embodiment of the present invention. Cross key exploded view of an image reading and recording apparatus according to an embodiment of the present invention LCD part back surface gap figure of the image reading and recording apparatus which concerns on the Example of this invention The state figure which opened the pressure plate of the image reading and recording apparatus which concerns on the Example of this invention The figure which removed the glass of the image reading part of the image reading and recording apparatus which concerns on the Example of this invention Sponge frame removal view of an image reading and recording apparatus according to an embodiment of the present invention FIG. 1 is a sponge frame diagram of an image reading and recording apparatus according to an embodiment of the present invention. Film guide detachment view of an image reading and recording apparatus according to an embodiment of the present invention Film guide set diagram of image reading and recording apparatus according to an embodiment of the present invention Link attachment diagram of image reading and recording apparatus according to an embodiment of the present invention Explanatory drawing of a scanner unit lock of an image reading and recording apparatus according to an embodiment of the present invention Lock detail drawing of the image reading and recording apparatus according to the embodiment of the present invention Link state diagram of image reading and recording apparatus according to an embodiment of the present invention Detailed view of the scanner hinge of the image reading and recording apparatus according to the embodiment of the present invention 1 is a perspective view of a paper discharge tray mechanism of an image reading and recording apparatus according to an embodiment of the present invention. Enlarged view of the paper discharge tray mechanism of the image reading and recording apparatus according to the conventional example. Sectional view of the paper discharge tray mechanism of the conventional image reading and recording apparatus Discharge tray open view of the conventional image reading and recording apparatus FIG. 1 is an electric board unit diagram of an image reading and recording apparatus according to an embodiment of the present invention. Electrical board mounting diagram of image reading and recording apparatus according to an embodiment of the present invention PCB cover attachment diagram of image reading and recording apparatus according to an embodiment of the present invention Photo interrupter attachment diagram of an image reading and recording apparatus according to an embodiment of the present invention Ink cartridge replacement explanatory diagram of an image reading and recording apparatus according to an embodiment of the present invention Explanatory drawing of the scanner open / close sensor of the image reading and recording apparatus according to the embodiment of the present invention. Explanatory drawing of scanner open / close and paper discharge tray of image reading and recording apparatus according to an embodiment of the present invention Side cover attachment explanatory view of an image reading and recording apparatus according to an embodiment of the present invention Card cover attachment explanatory diagram of an image reading and recording apparatus according to an embodiment of the present invention The card cover reverse view of the image reading and recording apparatus which concerns on the Example of this invention The figure of the discharge tray open state of the image reading and recording apparatus which concerns on the Example of this invention The figure of the discharge tray closed state of the image reading and recording apparatus which concerns on the Example of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel part 2 Reading part 3 Recording part 4 Electric board part 5 Card slot part 11 Panel cover 12 LCD unit 21 Pressure plate 23 Glass 31 Recording paper tray 32 Recording paper auxiliary tray 38 Ink tank 39 Cartridge 100 Recording paper 231 Middle frame 131 Recording paper Paper discharge tray 132 Recording paper discharge auxiliary tray 133 Cartridge door 301 Permanent magnet 302 Solenoid

Claims (2)

  A recording apparatus comprising: a permanent magnet provided on an openable / closable tray; a solenoid provided in an apparatus main body; and a position in contact with the solenoid when the tray is closed.   The recording apparatus according to claim 1, wherein a position of the permanent magnet is a position closer to a front end in a position from a rotation center of the discharge tray to a front end.

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