JPH03102029A - Recording device - Google Patents

Abstract

PURPOSE:To considerably reduce the space for stowing with a compact size by forming the lower part of a case of an automatic paper sheet feeder with a movable member capable of swinging in the direction in which the case bottom opens so that the movable member forms a leg portion for the recording device by swinging it out. CONSTITUTION:Part of a lower part of a case of a paper sheet feed drive section 40 of an automatic paper sheet feeder 30 is constituted with a movable member 44 to be swung (extended or retracted) about a pivot 43. The movable member 44 is extended to serve as a leg during use of the feeder 30 and retracted when the feeder 30 is stowed. An opening 32 is formed in the wall, opposite a recording device 10, of the movable member 44. A dc/ac changeover switch 19 is provided on the back lower part of the recording device 10 so that the switch 19 may be operated from the back side (bottom side when it is placed horizontally). The opening 32 is located at a position opposite the switch 19 so that the switch 19 may be operated through the opening 32 even if the automatic paper sheet feeder 30 is attached.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device in which an automatic paper feeder is detachably attached to the back of the device in an upright position. [Prior Art] Recording devices such as printers, copiers, and facsimiles print dots on a recording sheet such as paper or a thin plastic plate by driving an energy generator in a recording head based on transferred image information. It is configured to record images that warn from patterns. The above recording device is an inkjet type,
It can be divided into wire dot type, thermal type, laser beam type, etc. In addition to plain paper, recording sheets used in recording devices include thick paper such as postcards and envelopes, and special sheets such as thin plastic plates. In addition to manually inserting recording sheets one by one, recording sheets are fed automatically and continuously using an automatic paper feeder. The automatic paper feed device generally includes a paper feed drive unit that rotates a paper feed roller to feed recording sheets, and a paper feed cassette unit that stacks and stores recording sheets, and is linked to the sheet conveyance system of the recording device. By driving the paper feed drive section, the recording sheets in the paper feed cassette section are separated and fed one by one. In addition, automatic paper feeders include internal types that are built into the recording device, as well as external types that are removably installed.The present invention provides an external automatic sheet feeder that is removably installed. Related to recording devices. Generally, a horizontal type recording device is adopted, and a sheet insertion port and a sheet discharge port are provided on the top surface of the recording device, and the sheet is fed along a recording sheet conveyance path configured in a substantially U-shape inside the recording device. The system is structured so that it is recorded while In such a horizontal recording device, a recording sheet conveyance path that is approximately horizontal in an upright state is configured, and an exterior is installed so that recording sheets are fed from the recording sheet conveyance path in an upright state. It has been proposed to install a type of automatic paper feeder. [Technical problems that the invention attempts to solve! ! ! Title: By the way,
In the case of a conventional recording device of the type described above, in which the recording device is placed horizontally and an automatic paper feeder is attached to the back of the device,
When used upright, not only when the main body of the recording device is used alone, but also when an automatic paper feeder is attached to the back of the recording device, if it is slimmed down to take into account the storage space during storage, it will lack stability during use. However, on the other hand, increasing the bottom area to ensure stability during use would increase the required storage space, making it impossible to satisfy both of these requirements. In addition, in a recording device equipped with a conventional automatic paper feeder,
In general, it was only possible to automatically feed regular sheets, and it was particularly difficult to configure the system to manually feed thick sheets such as postcards and envelopes. Furthermore, the operating means such as the changeover switch installed on the back of the recording device were operated by the automatic paper feeder, making them inoperable, requiring countermeasures such as changing the installation location. The present invention has been made in view of such conventional technical problems, and it is an object of the present invention to make the overall shape compact and to ensure sufficient stability when used with an automatic paper feeder attached. The purpose of the present invention is to provide a recording device that can be further compacted and require significantly less storage space when stored. Another object of the present invention is to provide a recording device in which operation means such as a changeover switch provided on the back of the recording device can be easily operated even when an automatic paper feeder is attached and used. ．． A further object of the present invention is to provide a recording device that can be easily configured with a recording sheet insertion slot that allows even thick recording sheets such as postcards to be easily inserted manually even when an automatic paper feeder is installed. (!! Means for IH solution) The present invention provides a recording apparatus configured such that an automatic paper feeder can be detachably attached to the back surface in an upright state, and the automatic paper feeder is attached to the recording apparatus. By forming the lower part of the case with a movable member that can rotate in the direction in which the lower end opens, and by extending the movable member to form the legs of the recording device during use, the overall shape can be made compact, and the automatic It can ensure sufficient stability when used with a paper feeder attached, and when stored, it can be made even more compact to significantly reduce storage space.Moreover, it can be installed with an automatic paper feeder. The present invention proposes a recording device that allows easy operation of operation means such as a changeover switch provided on the back of the recording device even when used in a computer. 4 is a perspective view showing a state in use of a horizontal type recording device (recording device main body) 10 suitable for carrying out the present invention, and FIG. 4 shows a schematic internal configuration of the recording device of FIG. 3. FIG. 3 and 4, a recording device (for example, one using a bubble jet recording method,
A recording device that forms an image using a recording liquid that uses thermal energy to form droplets of the recording liquid ff) A sheet insertion opening 11 and a sheet discharge opening 2 are formed on the top surface of the 10,
The recording sheet 13 inserted from the sheet insertion slot 11 is placed on the circumferential surface of the platen roller 14 which also serves as a sheet feeding roller.
! ! The recording sheet is transported in the direction of the arrow along the approximately U-shaped transport path (FIGS. 1 and 2).
, are recorded while passing through the recording section facing the recording head 15, and are discharged upward from the sheet discharge port 12 after recording.
Here, the paper feed tray! 6 is pivotally attached to the top surface of the recording device 1O so that it can be opened and closed, and when in use (recording) it opens and functions as a feeding tray, but when not in use (for storage, etc.) it opens as shown in Figure 2. The cover 16 functions as a cover 16 that covers and protects the top surface of the recording apparatus IO, which is set in the closed position as shown in FIG. It is something. 1st 4th
In the figure, the recording head 15 is mounted on a carriage 22 that reciprocates along guide shafts 21, 21 parallel to the platen roller 14. Note that the illustrated recording head l
5 shows an example of an inkjet head, which is integrated with an ink tank. A recording sheet 13 is disposed upstream of the recording head 15 in the conveying direction.
A sheet pressing plate 23 is arranged to press the sheet against the platen roller 14. This sheet presser 23 is pressed against the circumferential surface of the platen roller l4 by a leaf spring 24. Further, the pressing force of the sheet pressing plate 23 can be released by operating a lever 25 supported by the shaft of the platen roller l4. Further, a recording sheet }13 is located at the sheet discharge port l2.
A spur 26 and a roller 27 are provided to assist in ejecting the liquid. FIG. 5 is a diagram showing the bottom surface of the recording device (main body) 10 (which becomes the back surface in the upright position, which will be described later). Recording device 10
A second sheet insertion opening 28 is formed in the bottom surface of the second sheet insertion opening 28, and a substantially straight line extends from this insertion opening 28 through the recording section between the recording head l5 and the platen roller 14 to the sheet discharge opening l2. The recording sheet R feed path of No. 2 is arranged to extend substantially in the vertical direction. As will be described later, this second recording sheet conveyance path can be used when the recording apparatus IO is upright (Figures 1 and 2), and since it is not curved, it can be used to convey postcards, envelopes, etc. This has the advantage that even stiff recording sheets, such as thick sheets or special sheets such as plastic sheets, can be easily fed. The recording device 10 described above can be used even in an upright position, and in the upright position, an automatic paper feeder can be detachably attached, and paper can also be automatically fed from the sheet insertion slot 28 on the back (when it is upright). can. Figures i and 2 show the recording device in an upright position! 1, which is a vertical cross-sectional view of the automatic paper feeder 30 attached to the back of the 0, shows the usage form B (during recording), and 2 shows the stored state. In FIGS. 1 and 2, when the recording apparatus IO is placed in an upright position, a substantially linear recording sheet conveyance path, that is, a second sheet insertion path, passes through the recording section (between the recording head 15 and platen roller l4). A conveyance path from the port 28 to the sheet discharge port l2 is formed. Therefore, the automatic paper feeder 30 has an entrance (sheet insertion slot) 2.
8 to feed the recording sheet l3 into this linear conveyance path, and
It is removably attached to the opening surface of the The automatic sheet feeding device 30 also includes, in addition to an automatic sheet feeding mechanism to be described later, a linear sheet path 3l for supplying recording sheets that is connected approximately linearly to the approximately linear recording sheet transport path. is provided. This sheet passage 3l is an insertion guide passage for manually feeding recording sheets,
It is closed when automatic paper feeding is possible, as shown by the solid line in Figure 1, and it is opened and manually inserted when the recording sheet set is in poor condition and automatic paper feeding is not possible, as shown by the two-dot chain line in Figure 1. is made possible. The automatic paper feeder 30 includes a paper feed drive unit 40 that is fixedly connected to the recording device 110, and a paper feed drive unit 40 that is rotatably attached to the paper feed drive unit 40 between a substantially perpendicular state and an inclined state. It consists of a paper feed section 50. FIG. 6 shows the automatic paper feeder 30 in the state shown in FIG.
It is a perspective view seen from the bonding surface side to tO. The paper feed cassette unit 50 is a part that stacks the recording sheets 13 in a positioned state, and the paper feed drive unit 40 feeds out the stacked recording sheets 13 one by one to the recording device 10. It is a part. In Figures 1, 2 and 6,
The paper feed cassette section 50 is mounted on a frame at a position facing the upper half of the paper feed drive section 40 so as to be rotatable (openable and closed) about a fulcrum 51. The position of the paper feed drive unit 40 facing the paper feed cassette unit 50 (
In the upper half), a feeding roller 41 and a feeding auxiliary roller 4 are provided.
2 is installed. A foldable feeding tray 52 is provided in the paper feeding cassette section 50.
When in use, it can be pulled out to form a tray as shown in FIG. 1, and when stored, it can be folded into the cassette section 50 as shown in FIG. A part of the lower part of the case of the paper feed drive section 40 is composed of a movable member 44 that can freely rotate (open and close) around a fulcrum 43.
When in use, the movable members 44 are opened as shown in FIG. 1 and constitute legs. Further, the movable member 44 is closed as shown in FIG. 2 when stored. An opening 32 is formed in the wall surface of the movable member 44 facing the recording device 10 that controls the opening/closing legs. On the other hand, at the lower part of the back of the recording device WIO, there is provided a changeover switch 19 such as an AC/DC changeover switch that is operated from the back (bottom when placed horizontally). The opening 32 is formed at a position corresponding to the switches 19, and can be operated from the opening 32 even when the automatic paper feeder W30 is installed. Therefore, in the state RM (FIG. 2) in which the movable member (opening/closing leg) 44 is closed, the user cannot operate the changeover switch 19 because the leg is closed.
4 open! (FIG. 1), an opening 47 is formed in the leg as shown in the figure, making it possible to operate the changeover switch 19. Further, the movable member 44 is provided with a shelf portion which, when opened as shown in FIG. 1, holds a sheet support table 45 at the entrance of the manual sheet passage 3l. The table formed by the shelf portion 45 is formed using the movable member 44, and complements the substantially linear sheet path 3l leading to the linear recording sheet conveyance path of the recording device 10, The structure is such that the recording sheet 13 can be inserted easily and correctly. As shown in FIG. 2, the recording device ill7IO with the automatic paper feeder 30 installed in an upright position folds up the cover (ejection tray) 16, and then sets the paper feed cassette section 50 in a vertical position. By closing the movable members (legs) 44, the storage state is achieved. In this stored state, it has an approximately rectangular parallelepiped shape with a flat bottom and a compact upright position with no overhanging parts. On the other hand, in the usage state shown in FIG. 1, the cover 16 is opened to configure the loitering tray, and the movable member (leg) 44 is opened and tilted at a predetermined angle α (for example, 5 degrees to 25 degrees). Maintain a stable posture. As shown in the figure, the lower case of the paper feed drive unit 40 is configured to face a flat bottom surface inclined at a predetermined angle when the movable member 44 is opened. With the paper feed cassette unit 50 closed (vertical), set the recording sheet l3 inside it. After the printer is in a printable state in this way, if printing is to be performed using automatic paper feeding, the paper feeding cassette section 50 is opened (tilted) as shown by the solid line and the printing operation is started. On the other hand, when recording by manual paper feed, the paper feed cassette section 50 is left in the vertical (closed) state, and the recording sheet 13 is passed through the table 45 and the sheet path 31 to the recording device lO. Here, as shown in FIG. ) is inclined upward at a predetermined angle β (5 degrees to 25 degrees) toward the sheet discharge direction.
On the side of the F exit) 12, there is provided a discharge tray that can be accessed by opening the cover 16. This discharge tray 16
As shown in the figure, is installed so as to extend substantially horizontally at a position lower than the sheet discharge port l2 by a predetermined height h. According to this arrangement of the ejecting tray 16, the recording sheet 13 can be ejected without coming into contact with the recording sheet 13 on the wandering tray 16, as shown in the figure. It is possible to eliminate the problem of ink stains caused by contact with unfixed recording ink in inkjet recording devices that perform recording by depositing liquid. Next, the coupling structure of the recording device IO and the automatic paper feeder 30 will be explained. FIG. 7 is a horizontal sectional view showing the combined state of the recording device 10 and the automatic paper feeder 30, and FIG. 8 shows the state in which the lock is released from the state shown in FIG. First, as shown in FIGS. 5, 7, and 8, on the back side of the recording device 1O, a drive gear 33 that rotates in synchronization with the platen roller 14 is supported, and on the other hand, an automatic paper feeder 30 As shown in FIGS. 6 to 8, a driven gear 4 capable of transmitting rotational force to the feeding roller 41 is pivotally supported on the mounting surface side of the gear 4, and these gears 33 and 48 are engaged when coupled. By doing so, the driving force of the paper feed roller 4l is transmitted to the automatic paper feeder side. A frame member 35 is provided within the recording apparatus IO to support bearings such as the platen roller 4 and the sheet conveyance motor 34, and the case portion is attached to the frame member 35. A hook member 38 having a lever 36 and a tip hook 37 is attached to the automatic paper feeder 30 so as to be swingable and movable by a predetermined amount in the front and back direction. It is energized. On the other hand, the hook 37 of the frame member 35 of the recorder lO
An opening 53 through which the hook 37 enters through the opening of the case is formed at a position corresponding to , and the hook 37 engages with the peripheral edge of the opening 53. As shown in FIGS. 7 and 8, a bead-shaped portion is formed on the peripheral edge of the opening 53 so that the hook 37 can be smoothly engaged with the hook 37. When the hook 37 in FIG. 7 is engaged, the tension spring 39
is extended (for example, 1 to 2 mm), and the automatic paper feeder n30 is pressed and connected to the recording device 10 by the spring force. By pinching and rotating the lever 36, the hook member 38 is unlocked as shown in FIG. 8, and the automatic paper feeder 30 can be removed from the recording apparatus 10. Pressure welding in this bonded state is carried out on a total of three contact surfaces. As shown in FIGS. 5 to 7, a first contact surface 54 and second and third contact surfaces 55 and 56, which serve as contact reference surfaces, are formed on the automatic paper feeder 30 side. ing. The contact reference surface 54 is provided near the working gear 48 as shown. A base contact surface 57, which is a mating surface of this contact reference 54, is formed on the frame member 35 having high strength and rigidity, and its position is selected near the meshing portion of the gears 33 and 48. ．． Further, the line of action of the hook member 38 that applies the pressure contact force of the joint portion is, as shown in the figure, the three contact surfaces 54, 55, 5.
The position was selected in consideration of position 6, where a stable bond can be obtained. Note that the second and third contact surfaces 55 and 56 are
It can also be placed in direct contact with the back of the Also, automatic paper feed! Positioning pins 58 and 59 are formed on the mounting surface of 30, and these pins 58 and 59 are attached to the recording device rIl.
The automatic sheet feeding device 30 is positioned with respect to the recording device 10 by fitting into the positioning holes 61 and 62 formed on the back surface of the io. Note that one of the positioning holes 61 and 62, 6l, is a long hole, as shown in FIG. Further, the attachment surfaces of the automatic paper feeder Tl30 and the recording apparatus IO are provided with an auxiliary material that becomes connected (engaged) when a certain external force is applied to the recording apparatus main body 10 and the automatic paper feeder 30 and bends. Hooks 63, 64 and auxiliary hook parts 65, 66 (fifth
) is provided. FIG. 9 is a longitudinal sectional view of the automatic paper feeder 130 in a paper feeding (tilted) state, and FIG. 10 is a longitudinal sectional view of the automatic paper feeder 30 in a recording sheet set (vertical) state. In FIG. 10, a pressure plate 68 is attached to the paper feed cassette section 50 and is biased toward the feed roller 4l by a pressure plate spring 67. The paper feed cassette section 50 also contains a recording sheet l3.
The widthwise interval l! adjustable slider 717
2 is proposed and supported. FIG. 11 shows the paper feed cassette section 5 showing the sliders 7l and 72.
FIG. 12 is a partially cutaway front view of the slider 71,
FIG. 7 is a partially cutaway front view of the paper feed cassette section 50 showing a pressure plate 68 in addition to 72; Each slider 7172 has side guides 73 that abut against both side edges of the stacked recording sheets l3.
, 74, as well as separation claws 77 and 78 having separation claws 75 and 76 that press both front end corners of the stacked recording sheets }13 from above, and together with the sliders 71 and 72, the distance UA can be adjusted. There is. As shown in FIG. 9, the stacked recording sheets I3 are held between the pressure plate 68 and the separating claws 75, 76, and when feeding, the D-shaped paper feed roller 4l rotates to separate the recording sheets. } 13 and a feeding force is applied, and during one rotation, one sheet of the uppermost layer is separated, and fed through the feeding auxiliary roller 42 to the cue position in the recording apparatus IO. No. 13 is an RtN diagram showing various retaining members that operate when switching the paper feed cassette section 50 between the vertical sheet setting state and the inclined paper feeding state. First, in FIGS. 9 and 13, there are stoppers on both sides of the case of the paper feed drive section 40 that abut against the lower part of the paper feed cassette section 50 and hold the cassette section in an inclined position (paper feeding state). 79 and 79 are in the form. Furthermore, the sliders 7172 on both sides are provided with sheet entry prevention means (sheet entry prevention levers) 81, 8l for preventing insertion (loading) of the recording sheet 13 in the paper feeding state. The levers 81 and 81 are attached to the sliders 71 and 72.
2 and 82, and as shown in FIG. 9, the paper feeder rotates due to its own weight, and its upper end contacts the upper surface of the loaded sheet 13 near the sheet number 83. are doing. Therefore, even if an attempt is made to insert the recording sheet l3, the leading end of the recording sheet l3 will be obstructed by the leading ends of the sheet entry prevention levers 8l, 8l, and the recording sheet l3 cannot be inserted into the cassette. On the other hand, when the paper feed cassette section 50 is rotated to the vertical sheet setting state, as shown in FIG. 10, the sheet entry prevention levers 8l, 8! The lower end hits the case end face on the side of the g supply drive unit 40, and the levers 81 and 8l are rotated counterclockwise by a predetermined amount around the bins 82 and 82, and their upper ends are lifted and the seat population is increased. 83 is opened as shown. Therefore, the recording sheet l3 can be inserted into the cassette through the sheet insert 83. Also, the 10th
As shown in the figure and FIG. 13, pressing members 84, 84 protruding toward the cassette section 50 are formed on both sides of the case of the paper feed drive section 40, and press members 84, 84 are formed on both sides of the case of the paper feed drive section 40. When rotated to the vertical seat set position, the pressure Fi6
The pressure plate pushing members 84, 84 are brought into contact with the ears 85, 85 (Fig. I2) formed on both sides of the pressure plate 8, and the pressure ui 68 is pushed down. Therefore, as shown in FIG. 10, the distance between the feeding roller 41 and the pressure plate 68 is widened, the insertion space 86 for the recording sheet 13 is formed, and the recording sheet 13 can be set. ．． In this state, as shown in FIG. 10, the separation claws 75 and 76 remain held at a position equal to or slightly overlapping with the paper feed roller 41 (in the retracted angle position), and the paper feed drive Paper feed roller 4l of case 40
Since a guide protrusion 87 with a height slightly protruding from the paper feed roller 4l toward the cassette side is formed at the entrance side position, the recording sheet 13 to be inserted is separated by the separating claws 75, 76 and the pressure plate 68. It can be set reliably between In addition,
The contact position (the position of the pressing members 84, 84) when pressing down the pressure plate 68 is a position that is wider by a distance L on both sides than the maximum movement range of the separation claws 75, 76,
In addition, the area is selected to be outside the recording sheet l3, which has the maximum width to be used. The paper feed cassette unit 50 is locked into the sheet set state (
vertical position). As shown in FIG. 13, this locking mechanism consists of a hook lever 89 protruding from the end of the case of the paper feed drive unit 40, and a hook lever 89 that protrudes from the end of the case of the paper feed drive unit 40, and the paper feed cassette unit 50.
and an engaging portion 9I formed at the end of the seat, and is locked by rotating the seats to the set state and hooking them together. The lock Jat1$89,9l pushes the hot button 88 and uses its tip 92 (FIG. 13) to lock the hook lever 89.
It is released by elastically deforming and disengaging from the engaging portion 9l. Figure 14 shows the drive system of the feed roller 4l and the feed roller 4.
FIG. In FIG. 14, a driven gear 48 rotates in synchronization with sheet feeding of the recording device WIO.
The rotation is transmitted to the feeding roller shaft 97 through a series of gear trains 93, 94, 95, and 96. Here, a clutch 98 is provided between the gear 96 and the feed roller shaft 97. As the clutch 98, for example, one having a configuration that operates as follows is used. That is, in conjunction with rotation of the sheet conveyance roller (platen roller) 14 in the reverse printing direction by a predetermined amount based on a paper feed signal, the spring clutch means is reversed, thereby releasing the hook from the hook in the printing direction. , the clutch 98 is switched from off to on. By rotating the paper feed roller (D-shaped roller) 41 in conjunction with rotation of the platen roller l4 by a predetermined amount in the printing direction with the clutch on, only one recording sheet l3 is separated, and then the platen roller l4 is rotated. By feeding the paper to a position beyond the sheet pull-in part of D and rotating the platen roller l4 a predetermined amount in the reverse printing direction
With the rotation of the paper feed roller 4l stopped, the leading edge of the recording sheet 13 is retracted to the position where it has come out of the sheet pull-in section, and then the platen roller l4 and feed roller 41 are rotated in the printing direction. transports the recording sheet 13 to the printing position, and in the middle of this rotation, stops the paper feed roller 41 with a gap created between it and the recording sheet l3, and at the same time, the clutch is turned off. As a result, the interlock between the platen roller l4 and the paper feed roller 41 is cut off. In this way, a recording sheet l is produced during l rotations of the paper feed roller 4l.
Only one sheet of 3 is fed. As explained in FIGS. 11 and 12,
Side guides 73 and 74 for regulating the width of the recording sheets 13 and side guides 73 and 74 for regulating the width of the recording sheets 13 are provided on sliders 7l and 72 whose widthwise spacing can be adjusted according to the width of the recording sheets 13 to be loaded. Separation claws 75 and 76 that engage on both sides of the front end are provided, and these are moved together manually to set the clamp levers 101 and 102 (FIGS. 11 and 12) to the positions shown. As a result, the guide groove (not shown) is pressed from both sides by the end cam means (not shown) and set at a predetermined width position by frictional force. On the other hand, the paper feed roller 4l is fixed on the paper feed roller shaft 97 so as not to move in the width direction. A pair (two) of rollers are used as the feeding rollers 41, and are arranged at predetermined positions and intervals as shown in FIGS. 12 and 14. When the two D-shaped feeding rollers 41 and 4l are loaded with small-sized recording sheets 13A, the outer separation claws 75 and
76 is located at a position where the distance S, S is within a range (or value) suitable for the MIa performance. A pair of pseudo rollers 103, 103 are fixed to the outer sides of both paper feed rollers 4l, 4l of the paper feed roller shaft 97. These pseudo rollers 103, 103 are feeding rollers 4l,
A roller that has the same outline as 4l, but has a different material and width, has low frictional resistance with the recording sheet 13, and makes sliding contact with the recording sheet 13 during paper feeding, but virtually no sheet feeding force is generated. It is strictly prohibited. For example, the outer peripheral surfaces of the paper feed rollers 41 and 4l are made of rubber that generates a large frictional force, but the pseudo rollers 103 and 103 are made of plastic such as Teflon or nylon, and is a smooth surface. Therefore, when one or both of the pseudo rollers 103, 103 are loaded with a large-sized or medium-sized recording sheet 13B, the distances S, S from the outer separating claws 75, 76 are set.
As mentioned above, the values are placed in a range (or value) suitable for the intelligibility. By additionally providing the pseudo rollers 103, 103 with such a simple structure, even when the paper feed rollers 4l, 4l are fixed, the separating claws 75, 76 can be removed when recording sheets l3 of different widths are used. and the sheet holding position on the inside thereof can be set to an appropriate range (!I (or appropriate value) that forms an appropriate loop at the front edge of the recording sheet when paper feeding starts. In other words, the sheet width Even if the feeding rollers 41 and 41 are different, it is possible to maintain proper loop forming conditions by using the fixed 2M feed rollers 4l and 4l.
There is no need to use an expensive slide structure as the 41, and costs can be reduced. Furthermore, in the sliding paper feed rollers 41, 41, the sliding resistance increases accordingly when adjusting the width, which tends to cause variations in the overlapping distance between the recording sheet l3 and the separation claws 75, 76, and the paper feeding operation However, according to the structure using the pseudo rollers 103, 103 of the present application as described above, such disadvantages can be eliminated. Note that the feeding rollers 41, 4 are used instead of the pseudo rollers 103, 103! It is conceivable to use a total of four feed rollers, but this would make it virtually impossible to obtain a uniform pressing force at all four locations on the recording sheet 13, and Is there any variation in the feeding force of the paper rollers, which causes skew when feeding the sheet? Iτ cannot be practically implemented. FIG. 15 is a partial sectional view taken along line xv-xv in FIG. II, and with reference to FIGS. 11 and 15,
The guide structure of the sliders 7l and 72 will be explained. In FIGS. 11 and 15, the paper feed cassette section 50
On the inner surface of the case, there are guide rails 1'0 at a predetermined interval B.
5, 106, 10-7, and 10 days, the left slider 7l is guided by guide rails 105 and 106, and the right slider 72 is guided by guide rails 107 and 10B. Note that each of the guide rails 105 to 108 can be constructed by two consecutive upper and lower guide rails; It is provided. As shown in FIG. 15, each guide rail 105 to 108 has a dovetail (groove with a tapered surface) l09 on the inside.
A guide rail with two dovetail grooves is used. In the illustrated example, each of the guide rails 105 to 10B is formed integrally with the plastic case body of the paper feed cassette section 50. On the other hand, each slider is 7! , 72, a guide roller 110 is rotatably supported by a guide roller 110, which is moved in contact with the dovetail groove 109 of each of the guide rails 105 to 10B. In the illustrated example, a total of three guide rollers 110, one on the upper side and two on the lower side, are pivotally supported on each slider 71, 72, as shown in FIG. 110 has a corresponding dovetail groove 1 as shown in FIG.
1l slope (having approximately the same slope) that engages with the slope collapse of 09
2 is in full form. In this way, when adjusting the width of the side guides 73 and 74 to match the recording sheet 13, the slope 112 of each guide roller 110 is brought into contact with each dovetail groove 109, and the slider 71,
72 (in the structure shown in FIG. 11, as shown in FIG. 14, only the left slider 71 is moved to adjust the convergence). At this time, each guide roller 110 moves along the slope of the dovetail groove 109, so that the resistance during movement can be significantly reduced. Furthermore, at least one guide roller 110 of each slider 7l, 72, that is, in the illustrated example, the upper guide roller 110 of each slider 71, 72 has a dovetail groove! 0
so that it is pressed against the guide surface (slanted surface) of 9 with a predetermined pressure.
It is supported through virtuous means. In the illustrated example, the guide roller support portions of the sliders 71 and 72 are formed by elastically displaceable arm portions (elastic portions) 114, and the upper and lower guide rollers 110 and 110 are in a free state.
The width of the upper and lower guide rails 105, 106 or 107
, 10B, and is configured so that a preload contact force is generated on the guide surface of each guide roller 110 when each slider 7172 is assembled to the guide rails 105 to 10B. By supporting the guide roller 110 via an elastic means that generates such a predetermined pressure contact force, it becomes possible to eliminate play in the guide portion and move the sliders 71 and 72 more smoothly and accurately. Margins below [Effects of the Invention] As is clear from the above description, according to the present invention, in a recording apparatus configured such that an automatic paper feeder can be detachably attached to the back surface when the paper is in an upright position, The lower part of the case of the automatic paper feeder is formed of a movable member that can be rotated in the direction in which the lower end opens, and in particular, the movable member is protruded to form the legs of the recording device, so that the overall shape is improved. It can be made compact, and it can ensure sufficient stability when used with an automatic paper feeder installed.
In addition, a recording device that can be made even more compact and requires significantly less storage space during storage can be obtained. Margin below

[Brief explanation of drawings]

FIG. 1 is a schematic vertical cross-sectional view showing a state in which a recording device with an automatic paper feeder according to the present invention is used, and FIG. 2 is a schematic vertical cross-sectional view showing a state in which the recording device of FIG. 1 is stored. FIG. 3 is a schematic perspective view showing the main body of the recording device shown in FIG. 5 is a schematic bottom view showing the bottom of the recording device shown in FIG. 3, FIG. 6 is a schematic perspective view of the automatic paper feeder shown in FIG. 1, viewed from the mounting surface side, and FIG. FIG. 1 is a cross-sectional view of the main part showing the locked state of the joint between the recording apparatus main body and the automatic paper feeder, FIG. 8 is a cross-sectional view of the main part showing the unlocked state in FIG. 7, and FIG. A schematic vertical cross-sectional view of the paper feeding state of the automatic paper feeder shown in the figure, Figure 9 is
FIG. 11 is a partially removed front view of the paper feed cassette section of the automatic paper feeder shown in FIG. 9, and FIG. A front view of the paper feed cassette section of the automatic paper feeder shown in FIG. 9, and FIG. 13 schematically shows the operation structure a between the paper feed drive section and the paper feed cassette section of the automatic paper feeder shown in FIG. 14 is a partially removed perspective view schematically showing the drive mechanism of the paper feed roller of the automatic paper feeder of FIG. 9, and FIG. 15 is a partially removed perspective view showing the line xv-- in FIG. 11.
FIG.

Claims (3)

[Claims] (1) In a recording device configured such that an automatic paper feeder can be removably attached to the back when it is upright, rotate the lower part of the case of the attached automatic paper feeder in a direction in which the lower end opens. 1. A recording device characterized in that the recording device is formed of a flexible movable member, and when in use, the movable member is extended to form a leg portion of the recording device. (2) The recording device according to claim 1, wherein a changeover switch provided at the bottom of the back of the recording device can be operated when the movable member is opened. (3) The recording apparatus according to claim 1, wherein the image is formed using a recording liquid that uses thermal energy to form droplets of the recording liquid.