JP2009233888A - Image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate working of taking out a cutter waste recovery box. <P>SOLUTION: The cutter waste recovery box 65 is attached to a rotary table 52. The cutter waste recovery box 65 is moved from a collection position to a disposal position while the box 65 is rotated around roll paper P2 centering a fulcrum shaft 53 by the rotary table 52. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image forming apparatus.

  2. Description of the Related Art Conventionally, in an image forming apparatus used for a photographic print system or the like, a paper storage chamber for storing a long paper wound in a roll shape is provided on a printer body, and the paper stored in the paper storage chamber is provided. The paper supplied to the printing unit is printed on the paper supplied from the paper storage chamber by a print head such as an ink jet, and the printed paper is cut into a predetermined length by the cutter unit. At the same time, it is conveyed to a discharge position provided with a discharge tray or the like. Here, the paper chips cut by the cutter unit are collected in a cutter waste collection box (see Patent Document 1).

  By the way, in such an image forming apparatus, the roll paper is cut into a predetermined size after the printing process is performed in the printing unit. The specific reason is that when the roll paper is cut before the printing process, when performing borderless printing, part of the ink ejected to both edges in the paper transport direction protrudes from the paper. This is because an ink absorbing material for absorbing the ink must be disposed at a position corresponding to the edge in the paper transport direction, which causes an increase in cost.

Furthermore, since the cut paper is small in size and easily tilted in the middle of conveyance, it is necessary to perform high-precision positioning work and accurate suction operation in the printing section when performing high-speed printing processing. Because it gets worse.
JP 2007-261038 A

  However, in the conventional image forming apparatus, for the reasons described above, the roll paper is disposed on the front side of the housing, and the cutter waste collection box is disposed on the downstream side in the transport direction from the roll paper. And when replacing the roll paper, pull out the roll paper to the front side of the housing and replace it, while when replacing the cutter waste recovery box, take out the cutter waste recovery box from the rear of the housing and replace it. Work must be done.

  That is, in order to take out the cutter waste collection box, a work space is required at the rear of the housing, and it is necessary to secure a large installation space for the image forming apparatus, or after moving the equipment, the cutter waste collection box is taken out. There is room for improvement in terms of workability and installation space.

  Further, in the case where an accumulation unit that conveys the paper discharged from the image forming apparatus to a predetermined accumulation position is provided at the rear of the housing, when the cutter waste collection box is to be taken out, the accumulation unit is first inserted. It had to be moved, and workability was worse.

  This invention is made | formed in view of this point, The place made into the objective is to make it possible to perform the taking-out operation | work of a cutter waste collection | recovery box easily.

  In order to achieve the above-described object, in the present invention, a moving mechanism for moving the cutter waste collection box between the collection position and the disposal position is provided, and the cutter waste collection box is pulled out to the disposal position on the near side of the housing. I did it.

  Specifically, the present invention forms an image on the paper while conveying the long paper accommodated in the paper accommodation chamber in the housing in a predetermined conveyance direction, and the paper after the image formation is cut by the cutter. For the image forming apparatus that is cut into a predetermined length by a unit and transported to a predetermined position, the following solution is taken.

That is, the invention of claim 1 is provided in the casing and below the cutter unit, and a cutter waste collection box that receives the chips cut by the cutter unit;
A lid member that can freely open and close the upper opening of the cutter waste collection box;
A moving mechanism for moving the cutter waste recovery box between a recovery position for receiving chips under the cutter unit and a disposal position withdrawn to the near side of the housing;
The moving mechanism is configured to move the cutter waste recovery box from the recovery position to the disposal position after the lid member is closed and chips are pushed into the cutter waste recovery box. It is characterized by this.

  In the first aspect of the invention, after the lid member is closed and the chips are pushed into the cutter waste recovery box, the cutter waste recovery box is moved from the recovery position to the disposal position. The installation space for the apparatus can be reduced.

  Specifically, as in the conventional case, in the image forming apparatus configured to take out the cutter waste recovery box from the rear of the housing and perform the replacement work by pulling out the paper to the front side of the housing, the cutter waste recovery box In order to take out the printer, a work space is required at the rear of the housing, and it is necessary to secure a large installation space for the image forming apparatus, or when the apparatus is installed on the wall, move the apparatus once. Had to take out the cutter waste collection box from. On the other hand, in the present invention, the cutter waste collection box can be moved from the collection position for receiving chips to the disposal position on the near side of the housing and taken out from the near side of the housing, so that workability is improved.

  Furthermore, since the cutting waste was pushed into the cutter waste collection box with the lid member and then the cutter waste collection box was pulled out to the disposal position, the scrap would not enter the cutter waste collection box and the inside of the collection path below the cutter unit. Even if it has accumulated, the lid member is closed and the chips are pushed in. Can be pulled out.

The invention of claim 2 is the invention according to claim 1,
The paper storage chamber and the cutter waste collection box are arranged to line up in the front-rear direction of the housing,
The moving mechanism is configured to move the cutter waste collection box from the collection position to the disposal position while turning the paper around the paper around a predetermined fulcrum shaft. .

  According to the second aspect of the present invention, the cutter waste collection box arranged so as to be arranged in the rear of the paper storage chamber is moved from the collection position to the disposal position while rotating around the paper, thereby improving workability. However, the overall size of the apparatus can be reduced.

  Specifically, when the paper storage chamber and the cutter waste collection box are arranged so as to be aligned in the front-rear direction of the housing, the cutter waste collection box is not removed even if the cutter waste collection box is pulled out to the front side of the housing as it is. Since it interferes with the paper, in order to pull it out from the front side of the casing, it is necessary to arrange the paper and the cutter waste collection box so that they do not overlap when viewed from the front side of the casing. However, such an arrangement increases the overall height of the device, which is disadvantageous in reducing the overall size of the device.

  On the other hand, in the present invention, the cutter waste collection box is moved from the collection position to the disposal position while rotating around the paper around the predetermined fulcrum shaft. Even when the casings are arranged in the front-rear direction, the cutter waste collection box can be pulled out to the disposal position while avoiding interference with the paper.

The invention of claim 3 is the invention according to claim 1 or 2,
A movement restricting member is provided that restricts the movement of the cutter waste collection box by the moving mechanism when the lid member is open, and allows the cutter waste collection box to be moved when the lid member is closed. It is characterized by this.

  In the invention of claim 3, since the movement restricting member restricts the movement of the cutter waste collection box when the lid member is open, the cutter waste collection box is movable when the lid member is closed. The cutter waste collection box can be taken in and out only when the lid member is closed. As a result, the lid member opens with the cutter waste collection box not in the collection position, and the chips cut by the cutter unit are scattered in the housing without being received by the cutter waste collection box, or the lid member is closed and the cutter is closed. It is possible to prevent the chips from being caught when trying to pull out the chips before pressing them into the waste collection box.

The invention of claim 4 is the invention according to claim 3,
The movement restricting member is
An opening / closing shaft connected to the lid member and extending toward the front side of the housing;
An opening / closing lever portion that is attached to a distal end portion of the opening / closing shaft and rotates the opening / closing shaft in a circumferential direction to switch an opening / closing operation of the lid member;
The open / close lever portion engages with the moving mechanism when the lid member is in an open position to open the lid member and restricts the movement of the cutter waste collection box, and moves when the lid member is in a closed position to close the lid member. The cutter waste collection box is configured to be movable by releasing the engagement with the mechanism.

  According to the invention of claim 4, when the open / close lever portion is in the open position for opening the lid member, it engages with the moving mechanism to restrict the movement of the cutter waste collection box, while it moves when it is in the closed position for closing the lid member. Since the cutter waste collection box can be moved freely by disengaging the mechanism, the movement mechanism of the cutter waste collection box by the moving mechanism is reliably regulated in conjunction with the movement of the opening / closing lever part that opens and closes the lid member. can do.

  As described above, according to the image forming apparatus of the present invention, after the lid member is closed and the chips are pushed into the cutter waste recovery box, the cutter waste recovery box is moved from the recovery position to the disposal position. Therefore, even when chips do not fully enter the cutter waste collection box and accumulate in the collection path below the cutter unit, by closing the lid member and pushing the chips, the chips are caught and pulled out, The cutting waste is not scattered forcibly and the cutter waste recovery box can be pulled out smoothly.

  Furthermore, since the cutter waste collection box can be moved from the collection position for receiving the chips by the moving mechanism to the disposal position on the front side of the housing and taken out from the front side of the housing, workability is improved. Moreover, since it is not necessary to provide a work space for taking out the cutter waste collection box behind the housing, the installation space can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature and is not intended to limit the present invention, its application, or its use.

  FIG. 1 shows the appearance of an inkjet printer as an image forming apparatus according to an embodiment of the present invention, and FIGS. 2 to 5 show the internal configuration of the inkjet printer. The inkjet printer A is used in a photographic print system. For example, print paper based on image data transmitted via a communication cable from a reception block that acquires image data and performs necessary correction processing and the like. Automatic printing that prints on P1 and P2, and pulls out one end of a long print paper P2 wound in a roll shape and prints on the print surface of the print paper P2 (hereinafter referred to as roll paper P2). It is configured to be able to execute printing and manual-feed printing that performs printing on a print surface (corresponding to a print surface) of a sheet-like print paper P1 (hereinafter referred to as sheet paper P1) that has been cut into a predetermined size in advance. Yes.

  In the following description, when it is not necessary to distinguish between the sheet paper P1 and the roll paper P2, the sheet paper P1 and the roll paper P2 are referred to as print papers P1 and P2. The printed surface means a surface on which printing is performed, and the printed surface of the sheet paper P1 is determined when the sheet paper P1 is set on the manual feed tray 7 (see FIG. 5). Specifically, when the sheet paper P1 is set on the manual feed tray 7, the surface facing upward is the print surface. Further, the print surface of the roll paper P2 is a surface that faces radially outward when the roll paper P2 is wound in a roll shape.

-Overall configuration-
As shown in FIGS. 1 to 5, the inkjet printer A includes a printer main body 90, a manual feed tray 7 for manually setting and feeding the sheet paper P <b> 1 into the printer main body 90, and a printer main body. And a discharge tray 5 for receiving the print papers P1 and P2 discharged from 90.

  The printer main body 90 is provided in a casing 6, a roll paper storage chamber 1 provided in a lower portion of the casing 6, in which a roll paper P 2 wound in a roll shape with the print surface outside is stored. The upper surface of the body 6 (upper side of the roll paper storage chamber 1) and the print surface of the sheet paper P 1 supplied from the manual feed tray 7 or the print surface of the roll paper P 2 drawn out from the roll paper storage chamber 1. The printing unit 2 that performs printing based on the image data (see FIGS. 2 and 5), and the ink supplied to the printing unit 2 that is located on both sides of the roll paper storage chamber 1 at the bottom of the housing 6 An ink storage unit 3 for storing and an upper portion of a door member 95 attached to the housing 6 so as to be freely opened and closed, and set on the manual feed tray 7 when the door member 95 is in a closed state. And a conveyor supplying roller unit 200 toward the Topepa P1 to the printing unit 2.

  A cutter unit U3 for cutting unnecessary portions of the printed papers P1 and P2 after printing and a back surface of the printed papers P1 and P2 on the upper side of the casing 6 and on the downstream side in the transport direction of the printing unit 2 The back surface printing unit 4 for printing the serial number, the drying unit U6 for drying the print papers P1 and P2 printed by the print unit 2, and the print papers P1 and P2 printed by the print unit 2 further downstream A discharge unit U4 for conveying is disposed. A discharge tray 5 is provided on the downstream side in the paper transport direction of the discharge unit U4 so as to protrude outward from the discharge port of the housing 6 and for receiving the print papers P1 and P2 discharged from the discharge roller 46. It is arranged.

  In the present embodiment, the side of the discharge tray 5 (the discharge side shown in FIG. 3) in the case 6 is called the rear side of the case, and the opposite side (the supply side shown in FIG. 3) of the discharge tray 5 is the front side of the case. The left side when viewed from the front side of the casing is called the left side of the casing, and the right side is called the right side of the casing. Therefore, the left-right direction in FIG. 5 is the front-rear direction of the casing, and the direction perpendicular to the paper surface of FIG. The lateral direction of the housing coincides with the width direction of the sheet paper P1 set and conveyed on the manual feed tray 7 and the width direction of the roll paper P2 accommodated and conveyed in the roll paper storage chamber 1.

-Paper transport mechanism-
As shown in FIG. 5, the ink jet printer A is provided with a paper transport mechanism that pulls out the roll paper P2 from the roll paper storage chamber 1 and transports the roll paper P2 along a predetermined transport path. This paper transport mechanism includes a supply unit U1, a print unit U2, a cutter unit U3, a drying unit U6, and a discharge unit U4 in order from the supply unit U1 that supplies the roll paper P2 to form the transport path. Image data is printed on the print surfaces of the print papers P1 and P2 positioned on the transport path of the print unit U2 disposed in the print unit 2.

  In the present embodiment, in addition to supplying the roll paper P2 from the supply unit U1 to the print unit U2, the sheet paper P1 is drawn from the manual feed tray 7 and can be conveyed and supplied to the print unit 2. A manual feed unit U5 is also provided.

  When printing on the roll paper P2, the paper transport mechanism transports and supplies the roll paper P2 set in the roll paper storage chamber 1 to the print unit U2 by the supply unit U1, and then supplies the supplied roll paper P2 to the print unit. The image data is printed by the print head H while being conveyed by U2. Then, after the printed roll paper P2 is conveyed to the cutter unit U3 and cut into a predetermined print size by the cutter unit U3, the roll paper P2 is dried by the drying unit U6 and sent to the discharge tray 5 by the discharge unit U4. . In the following description, the upstream side and the downstream side in the transport direction when the roll paper P2 is transported during the printing are simply referred to as the upstream side and the downstream side, respectively.

  The supply unit U1 positions the roll paper P2 wound in the roll paper P2 in the roll paper storage chamber 1 in a roll shape and the roll paper P2 drawn from the roll 21 in the width direction. And a conveyance driving roller 24 that is rotationally driven so as to convey the roll paper P2 by a width regulating roller 22 and an electric motor 26 (see FIG. 4). Are provided with two pressure rollers 25 which are pressure-bonded to the transport drive roller 24 so as to sandwich the roll paper P2.

  The supply unit U1 is configured to pull out the roll paper P2 from the roll paper storage chamber 1 and convey it to the printing unit 2 side by the rotational drive of the conveyance drive roller 24.

  The transport drive roller 24 is rotated in the forward direction by which the roll paper P2 is pulled out of the roll paper storage chamber 1 and transported to the print unit 2 side by the electric motor 26, and the roll paper P2 is returned into the roll paper storage chamber 1. It is configured to be able to rotate in the reverse direction.

  Thereby, after the printed part of the roll paper P2 is cut into a predetermined size by the cutter unit U3 on the downstream side of the print unit 2, the cut roll paper P2 is returned to the upstream side and the top of the roll paper P2 is started. Printing may be performed, or the cut roll paper P2 may be returned to the roll paper storage chamber 1, and a single-sheet print paper may be supplied to the printing unit 2 by the manual feed unit U5 for printing. I can do it. Also, when the roll paper P2 is replaced with a new one, the roll paper P2 drawn out of the roll paper storage chamber 1 can be returned to the roll paper storage chamber 1.

  The print unit U2 ejects ink onto the print papers P1 and P2 to form an image, and paper that holds the print papers P1 and P2 by suction at positions where the print head H can perform printing. A holding unit D and a pressure-type print transport roller 33 disposed on the downstream side of the paper holding unit D are provided. The transport driving roller 24 and the pressure roller 25 of the supply unit U1 are also used as the print unit U2, and serve to transport the print papers P1 and P2 in the print unit U2.

  The print head H is configured to be movable along a rail 30 that extends in the main scanning direction X (see FIG. 3) that coincides with the width direction of the print papers P1 and P2 (horizontal direction of the casing). Specifically, the rotational force of the drive motor 32 is transmitted to the drive belt 31 via a pulley, and the print head H moves in the main scanning direction X according to the rotation amount of the drive belt 31.

  The print head H has two head units 38 (lined in the sub-scanning direction Y (see FIG. 3)) that is perpendicular to the main scanning direction X and coincides with the moving direction of the print papers P1 and P2 (front-rear direction of the casing). 5), and by ejecting ink from ink ejection nozzles (not shown) provided in these two head units 38, predetermined images, characters, etc. are applied to the print paper P1, P2. Can be printed.

  Each of the ink reservoirs 3 includes a box-shaped case 61 (see FIG. 4) disposed on both the left and right sides of the ink jet printer A. In the case 61, inks having different hues are sealed. Seven ink cartridges 62 are detachably accommodated (in FIG. 4, three cartridges are accommodated on the left side and four cartridges are accommodated on the right side). Therefore, by removing these ink cartridges 62 from the case 61, the used or used ones can be replaced with new ones. Each of these ink cartridges 62 includes yellow (Y), magenta (M), cyan (C), black (K), red (R), violet (V), and clear (CL: transparent) inks. Is enclosed.

  The cutter unit U3 includes a roller cutter 41, and the print paper P1 and P2 are moved in the width direction at predetermined positions in the length direction of the print paper P1 and P2 while rotating the roller cutter 41. It is configured to cut into a predetermined size (length).

  Next, the structure of the cutter waste collection box 65, which is a characteristic part of the present invention, will be described. Below the roller cutter 41, a recovery path 42 for recovering chips of the print paper P1, P2 due to cutting is provided, and the chips that have fallen through the recovery path 42 are located on the lower end side of the recovery path 42. It is accommodated in the disposed cutter waste collection box 65. The cutter waste collection box 65 is arranged side by side so as to overlap the roll paper P2 when viewed from the front side of the apparatus at a position behind the roll paper P2.

  The cutter waste collection box 65 is attached to the moving mechanism 51, and is movable between a collection position for receiving chips below the cutter unit U3, and a disposal position drawn to the front side of the housing 6. Has been.

  Specifically, the moving mechanism 51 includes a rotary table 52 that rotatably supports the cutter waste collection box 65 around the fulcrum shaft 53, and a grip portion 54 attached to the front side of the rotary table 52. .

  The rotary table 52 is configured to be freely inserted and removed in the apparatus front-rear direction around the fulcrum shaft 53, and can move from the collection position to the disposal position while rotating the cutter waste collection box 65 around the roll paper P2. ing.

  A lid member 66 that can open and close the upper opening of the cutter waste collection box 65 is provided at the lower end position in the collection path 42. The lid member 66 closes the upper opening of the cutter waste collection box 65 and pushes the chips into the cutter waste collection box 65. An open / close shaft 67 extending toward the front side of the housing 6 is connected to the lid member 66, and an open / close lever portion 68 attached to the tip of the open / close shaft 67 is rotated to rotate the open / close shaft 67 in the circumferential direction. By doing so, the opening / closing operation of the lid member 66 can be switched. The opening / closing shaft 67 and the opening / closing lever portion 68 constitute a movement restricting member that restricts the movement of the rotary table 52.

  Specifically, the rotary table 52 is configured such that when the lid member 66 is open, the rotational movement of the cutter waste collection box 65 is restricted, while when the lid member 66 is closed, the cutter waste collection box 65 is rotatable. Has been. More specifically, when the end portion of the opening / closing lever portion 68 is in the open position where the lid member 66 is opened, the rotary table 52 and the fulcrum shaft 53 partially overlap with the rotary table 52 so that the rotary table 52 is engaged. The rotation around the fulcrum shaft 53 is prevented. Thereby, the rotational movement of the cutter waste collection box 65 is regulated.

  On the other hand, when the front end portion of the opening / closing lever portion 68 is in the closed position where the lid member 66 is closed, the engagement with the rotary table 52 is released, and the cutter waste collection box 65 is rotatable.

  In the cutter waste collection box 65 configured as described above, when the operator discards the chips, first, the lid member 66 is closed by rotating the opening / closing lever portion 68. As a result, the chips are pushed into the cutter waste collection box 65, and the chips accumulated in the collection path 42 without being able to enter the cutter waste collection box 65 are pushed into the cutter waste collection box 65. Here, by positioning the opening / closing lever portion 68 at the closed position, the engaged state between the rotary table 52 and the opening / closing lever portion 68 is released.

  Next, by pulling the grip portion 54 of the rotary table 52 toward the front side, the cutter waste collection box 65 is pulled out to the disposal position on the front side of the apparatus while rotating around the roll paper P2. The operator takes out the chips from the cutter waste collection box 65 drawn to the disposal position and discards them.

  As described above, after the lid member 66 is closed and the chips are pushed into the cutter waste collection box 65, the cutter is rotated by the rotary table 52 while rotating around the roll paper P2 while avoiding interference with the roll paper P2. Since the waste collection box 65 is moved from the collection position to the disposal position, the lid member 66 can be used even when the chips do not enter the cutter waste collection box 65 and have accumulated in the collection path 42 below the cutter unit. By closing and pushing in the chips, the chips can be pulled out smoothly without being caught by the chips or being scattered by the force of pulling out the chips.

  Furthermore, since the cutter waste collection box 65 can be moved from the collection position for receiving chips by the rotary table 52 to the disposal position on the front side of the housing 6 and taken out from the front side of the apparatus, workability is improved. Moreover, since it is not necessary to provide a work space for taking out the cutter waste collection box 65 behind the apparatus, the installation space can be reduced.

  Further, the print papers P1 and P2 cut by the cutter unit U3 are conveyed to the discharge unit U4 by the pressure-conveying type conveyance roller 43. A back side printing unit 4 is disposed between the cutter unit U3 and the discharge unit U4, and the back side printing unit 4 is arranged on the back side (lower side) of the print paper P1, P2 passing through this portion. Numbers etc. are printed.

  The discharge unit U4 has two sets of crimp-type discharge rollers 45 and 46 for conveying the print papers P1 and P2 and discharging them to the discharge tray 5.

  Here, the transport roller 43 and the discharge rollers 45 and 46 are rotationally driven in synchronization with each other by an electric motor (not shown).

  In addition, the transport roller 43 and the discharge rollers 45 and 46 are arranged before the leading ends of the print papers P1 and P2 transported by the upstream transport drive roller 24 and the print transport roller 33 are sandwiched between the rollers. Crimping is released.

  Specifically, when the print papers P1 and P2 are conveyed from the conveyance drive roller 24 and the print conveyance roller 33 toward the conveyance roller 43, before the leading ends of the print papers P1 and P2 come into contact with the conveyance roller 43, The upper roller moves upward and the pressure bonding is released. Similarly, when the print papers P1 and P2 that have passed through the transport roller 43 are transported toward the discharge rollers 45 and 46, before the leading ends of the print papers P1 and P2 come into contact with the discharge rollers 45 and 46, respectively, The roller moves upward and the pressure bonding is released. In this way, it is possible to solve problems such as the print papers P1 and P2 being bent due to the leading ends of the print papers P1 and P2 being caught by the transport roller 43 and the discharge rollers 45 and 46.

  In addition, after the image is printed by the print unit U2 and before the print paper P1 and P2 are cut by the cutter unit U3, the upper roller that has been moved upward in the transport roller 43 and the discharge rollers 45 and 46 is simultaneously pressed. By returning to the position, the print papers P1 and P2 are clamped. By doing so, the print papers P1 and P2 are not displaced when the paper is cut, and can be cut accurately.

  As shown in FIG. 6, the drying unit U6 is provided between the upstream and downstream discharge rollers 45 and 46 of the two crimping molds of the discharge unit U4, and above the discharge port of the housing 6. Air is sucked into the housing 6 from the suction port 48 formed in the vicinity, the sucked air is heated and blown as dry air, and the dry air blown onto the print papers P1 and P2 is sent from the exhaust port 49 to the housing 6. Exhaust outside.

  The drying unit U6 includes a drying chamber 71 provided on the transport path of the print papers P1 and P2, a drying device 72 that blows drying air to the drying chamber 71, and a suction port for the drying air exhausted from the exhaust port 49. And an external cover 70 leading to 48. The drying chamber 71 is partitioned by an upper partition wall 71a and a lower partition wall 71b that are opposed to each other with the print papers P1 and P2 interposed therebetween. The drying chamber 71 retains the drying air blown from the drying device 72 to the print papers P1 and P2. It constitutes a space.

  The drying device 72 includes a plurality of suction fans 73 arranged at intervals in the left-right direction of the housing 6 in order to take air into the drying device 72 from outside through the suction port 48 of the housing 6, and the suction fans 73. A heater 74 that heats the air taken in at the bottom, and is provided at the lower end of the drying device 72 and opens toward the downstream side in the paper conveyance direction, and blows the drying air heated by the heater 74 toward the downstream side in the conveyance direction. An exhaust nozzle 75, a safety thermo 76 that detects the temperature in the drying device 72 and stops the heater 74 in an emergency, and a thermo sensor 78 that is provided near the downstream side of the exhaust nozzle 75 and measures the temperature of the drying air It has. Further, a heat insulating material 77 is provided on the upstream side in the paper transport direction of the outer wall of the main body of the drying device 72 including the exhaust nozzle portion 75. By providing such a heat insulating material 77, the heat radiated from the drying device 72 is transmitted to a unit that is weak against heat disposed on the upstream side in the paper conveyance direction, for example, the back surface printing unit 4 using an ink ribbon. Heating can be suppressed.

  The external cover 70 is provided at a position above the discharge port 47 of the housing 6, covers the suction port 48 and the exhaust port 49 of the housing 6, and allows the dry air exhausted from the exhaust port 49 to flow inside the external cover 70. This is for circulating the circulation space 80 and leading it to the suction port 48. In addition, on the lower surface of the outer cover 70, that is, the surface facing the print paper P 1 and P 2 discharged from the discharge port 47, an outside air inlet 79 for sucking air outside the outer cover 70 into the circulation space 80 is provided. Is formed.

  The drying unit U6 blows dry air toward the downstream side in the paper transport direction on the print papers P1 and P2 after image printing, and a part of the blown dry air is discharged to the outlet 47 of the housing 6. The remaining dry air is blown out to the circulation space 80 of the outer cover 70 through the exhaust port 49. Further, a part of the dry air blown out of the housing 6 through the discharge port 47 of the housing 6 and the air outside the external cover 70 enter the distribution space 80 through the external air suction port 79 of the external cover 70. Inhaled.

  Then, the dry air exhausted from the exhaust port 49, the air sucked from the outside air suction port 79, and the dry air blown from the discharge port 47 and sucked through the outside air suction port 79 are inside the circulation space 80. The mixed air is taken in by the suction fan 73 of the drying device 72 through the suction port 48, heated by the heater 74, and blown to the print papers P1 and P2 as dry air. .

  By providing such a drying unit U6, even when the ink ejected from the print head H to the print papers P1 and P2 is not yet dried, the drying of the ink can be promoted by blowing the drying air. it can.

  As described above, according to the inkjet printer A as the image forming apparatus according to the embodiment of the present invention, after the lid member 66 is closed and the chips are pushed into the cutter waste collection box 65, the rotary table 52 Since the cutter waste collection box 65 is moved from the collection position to the disposal position while rotating around the roll paper P2 while avoiding interference with the roll paper P2, the chips do not enter the cutter waste collection box 65. Even in the case of accumulation up to the collection path 42 below the cutter unit, by closing the lid member 66 and pushing in the chips, the chips are caught and difficult to pull out, or the chips are scattered forcibly pulling out. The cutter waste collection box 65 can be pulled out smoothly.

  Furthermore, since the cutter waste collection box 65 can be moved from the collection position for receiving chips by the rotary table 52 to the disposal position on the front side of the housing 6 and taken out from the front side of the apparatus, workability is improved. Moreover, since it is not necessary to provide a work space for taking out the cutter waste collection box 65 behind the apparatus, the installation space can be reduced.

  As described above, the present invention provides a highly practical effect that the operation of taking out the cutter waste collection box can be easily performed. Therefore, the present invention is extremely useful and has high industrial applicability.

1 is a perspective view illustrating an appearance of an ink jet printer according to an embodiment of the present invention. It is a perspective view which shows the structure inside the housing | casing of an inkjet printer. It is a top view which shows the structure inside the housing | casing of an inkjet printer. It is a front view which shows the structure inside the housing | casing of an inkjet printer. It is the schematic seen from the housing | casing right side which shows the conveyance path | route of a print paper. It is the schematic which shows the movement from the collection position of a cutter waste collection box to a disposal position. It is sectional drawing seen from the housing | casing right side which shows the structure of a drying unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roll paper storage chamber 6 Case 51 Movement mechanism 53 Supporting shaft 65 Cutter waste collection box 66 Cover member 67 Opening / closing axis (movement restriction member)
68 Opening / closing lever part (movement restriction member)
U3 Cutter unit P2 Roll paper A Inkjet printer (image forming device)

Claims (4)

An image is formed on the paper while the long paper housed in the paper storage chamber in the housing is transported in a predetermined transport direction, and the paper after image formation is cut to a predetermined length with a cutter unit. An image forming apparatus that conveys the image to a predetermined position,
A cutter waste collection box disposed in the casing and below the cutter unit, and receiving the chips cut by the cutter unit;
A lid member that can freely open and close the upper opening of the cutter waste collection box;
A moving mechanism for moving the cutter waste recovery box between a recovery position for receiving chips under the cutter unit and a disposal position withdrawn to the near side of the housing;
The moving mechanism is configured to move the cutter waste recovery box from the recovery position to the disposal position after the lid member is closed and chips are pushed into the cutter waste recovery box. An image forming apparatus. In claim 1,
The paper storage chamber and the cutter waste collection box are arranged to line up in the front-rear direction of the housing,
The moving mechanism is configured to move the cutter waste recovery box from the recovery position to the disposal position while rotating the cutter waste recovery box around the paper around a predetermined fulcrum shaft. . In claim 1 or 2,
A movement restricting member is provided that restricts the movement of the cutter waste collection box by the moving mechanism when the lid member is open, and allows the cutter waste collection box to be moved when the lid member is closed. An image forming apparatus. In claim 3,
The movement restricting member is
An opening / closing shaft connected to the lid member and extending toward the front side of the housing;
An opening / closing lever portion that is attached to a distal end portion of the opening / closing shaft and rotates the opening / closing shaft in a circumferential direction to switch an opening / closing operation of the lid member;
The open / close lever portion engages with the moving mechanism when the lid member is in an open position to open the lid member and restricts the movement of the cutter waste collection box, and moves when the lid member is in a closed position to close the lid member. An image forming apparatus, wherein the cutter waste collection box is configured to be movable by releasing the engagement with the mechanism.

Images