JP3832219B2 - Printer with roll paper container - Google Patents

Printer with roll paper container Download PDF

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Publication number
JP3832219B2
JP3832219B2 JP2000288467A JP2000288467A JP3832219B2 JP 3832219 B2 JP3832219 B2 JP 3832219B2 JP 2000288467 A JP2000288467 A JP 2000288467A JP 2000288467 A JP2000288467 A JP 2000288467A JP 3832219 B2 JP3832219 B2 JP 3832219B2
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Japan
Prior art keywords
movable
side
paper
printer
roller
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JP2000288467A
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Japanese (ja)
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JP2001158141A (en
Inventor
聡 岩谷
秀樹 川上
和也 忍田
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セイコーエプソン株式会社
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Priority to JP11-269394 priority Critical
Priority to JP26939499 priority
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Priority to JP2000288467A priority patent/JP3832219B2/en
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Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a printer that performs printing with a print head such as an inkjet head on a recording paper fed from a recording paper roll accommodated in a roll paper accommodation unit. More specifically, the present invention relates to a printer of a type in which a recording paper roll is exchanged with respect to a roll paper storage portion through an opening formed on the front surface thereof.
[0002]
[Prior art]
As a printer that performs printing on a recording paper roll, there is known a printer in which an opening / closing lid for replacing a recording paper roll is attached to the front surface of the printer, and when the lid is tilted forward, the roll paper accommodating portion is exposed. Such a printer is disclosed, for example, in JP-A 3-258575. In the printer disclosed herein, a print head is disposed downward at a position above the roll paper accommodating portion, and a platen roller for defining a recording paper print position is disposed opposite to the print head. After the recording paper fed out from the recording paper roll stored in the roll paper storage section passes through the printing position and is printed, the discharge paper is formed above the recording paper replacement opening on the front of the printer. It is discharged from the paper mouth. In general, a cutter is attached in the vicinity of the paper discharge port, and the tape-like recording paper after printing can be cut automatically or manually.
[0003]
The lid that seals the opening of the roll paper storage unit is locked in the closed position by the lock mechanism, and when the lock is released, the cover is tilted forward by the spring force so that the roll paper storage unit is exposed. It has become. In addition, the platen roller, which is a component of the paper feed mechanism, is attached to the lid side, and when the lid is opened, the platen roller also moves, making it easy to replace the recording paper roll through the opening. Yes.
[0004]
[Problems to be solved by the invention]
Here, in the lid opening / closing mechanism that moves the parts constituting the paper feed mechanism such as the platen roller together with the lid, the movable side parts of the paper feed mechanism can be accurately returned to the original position when the lid is closed. Otherwise, there is a risk of paper feeding failure. In particular, when an inkjet head is used as a print head, the platen gap fluctuates, resulting in problems such as a decrease in print quality.
[0005]
On the other hand, a printer using a recording paper roll is installed at an accounting counter such as a store and generally used as a printer for issuing a receipt, and the installation place is often small. For this reason, there is a high demand for downsizing and downsizing of such printers. In consideration of this point, a lock mechanism for locking the lid that seals the roll paper container in its closed position, and a mechanism for releasing the lock by the lock mechanism, without requiring much space. A compact configuration is desirable.
[0006]
Furthermore, it is always required to be able to open and close the lid easily and safely, and it is also always required to be able to easily replace the recording paper roll.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to propose a printer for exchanging a recording paper roll by opening a lid attached to the front surface of the printer and capable of easily exchanging the recording paper roll.
[0008]
Another object of the present invention is to change the recording paper roll by opening a lid attached to the front of the printer, and together with the lid, constitutes a paper feeding mechanism for transporting the recording paper via the print position by the print head. An object of the present invention is to propose a printer that can also move a part of a component, and that can accurately return a component that moves together with a lid to its operating position.
[0009]
Another object of the present invention is to change the recording paper roll by opening a cover attached to the front surface of the printer, and together with the cover, constitute a paper feeding mechanism for transporting the recording paper through the print position by the print head. A printer that can move a part of a component, and can accurately return a component that moves together with a lid to its operating position, and can reliably feed a recording sheet without slipping. Is to propose.
[0010]
Still further, an object of the present invention is a printer that performs replacement of a recording paper roll by opening a lid attached to the front surface of the printer, and includes a lock mechanism that locks the lid in its closed position and a mechanism that unlocks the lock mechanism. Is to propose a compact and compact printer.
[0011]
In addition to this, an object of the present invention is to provide a printer for exchanging the recording paper roll by opening a lid attached to the front surface of the printer, and capable of easily and safely opening and closing the lid. There is to do.
[0012]
[Means for Solving the Problems]
In order to solve the above problems, a printer according to the present invention includes: a roll paper storage unit; a lid attached to the front of the printer to open and close the roll paper storage unit; and a recording loaded in the roll paper storage unit A print head for printing on a tape-like recording paper fed from a paper roll; and a paper feed mechanism for transporting the tape-like recording paper via a print position of the print head, the paper feed mechanism comprising: A fixed-side paper feed mechanism mounted on the printer body side, a movable-side paper feed movable to an operating position engaged with the fixed-side paper feed mechanism and a retracted position away from the fixed-side paper feed mechanism. A paper feed mechanism that forms a state in which the recording paper is sandwiched between the fixed-side paper feed mechanism and the movable-side paper feed mechanism at the operating position; Close In conjunction with the operation, the movable side paper feed mechanism is moved to the operating position, and in conjunction with the opening of the lid, the movable side paper feed mechanism is held in the operating position. And a parallel link mechanism for moving from the operating position to the retracted position.
[0013]
Here, the parallel link mechanism includes a pair of swing arms, and a lower end portion of each swing arm is rotatably supported on the roll paper accommodating portion side, and an upper end portion of each swing arm is the movable side paper feed mechanism. It can be set as the structure couple | bonded with the hinge.
[0014]
In addition, as the paper feeding mechanism, the fixed-side paper feeding mechanism section includes a first roller and a second roller disposed on the upstream side and the downstream side in the recording paper transport direction with respect to the print head, respectively. The movable-side paper feed mechanism section includes a third roller that contacts the first roller and a fourth roller that contacts the second roller when in the operating position, The recording paper may be conveyed between the first and third rollers and between the second and fourth rollers.
[0015]
In this case, the fixed-side paper feeding mechanism unit includes a motor that drives one of the first and second rollers, and a driving gear that transmits the driving force of the motor to the movable-side paper feeding mechanism unit. It can be set as the structure provided. The movable-side paper feed mechanism is configured to include a driven gear that meshes with the driving gear when in the operating position, and the third and third driving forces are transmitted by the driving force of the motor transmitted to the driven gear. One of the four rollers may be driven.
[0016]
Typically, a configuration in which the first and fourth rollers are driven by the motor can be employed. In this case, it is desirable that the movable-side paper feed mechanism unit includes a spring that presses the third roller against the first roller at the operating position.
[0017]
The second roller has a shape that can be pressed with a minute contact portion against the recording paper conveyed between the second roller and the fourth roller, and the rotation of the fourth roller. Accordingly, it is desirable that the motor is driven to rotate.
[0018]
Further, when the print head is an inkjet head or the like, the movable-side paper feed mechanism is attached to a roller support member that rotatably supports the third and fourth rollers, and the roller support member. And a platen plate disposed between the third and fourth rollers, and one end of the pair of swing arms is preferably hinged to the roller support member.
[0019]
Next, the printer of the present invention includes: a roll paper storage unit; a lid attached to the front of the printer for opening and closing the roll paper storage unit; and a tape fed from a recording paper roll loaded in the roll paper storage unit A print head for printing on a sheet of recording paper; and a paper feed mechanism for transporting the tape-like recording paper via a print position of the print head, the paper feed mechanism being attached to the printer body side A fixed-side paper feeding mechanism, an operating position engaged with the fixed-side paper-feeding mechanism, and a movable-side paper-feeding mechanism that can move to a retracted position away from the fixed-side paper-feeding mechanism. And in the operating position, a paper feed mechanism in which a state in which the recording paper is sandwiched between the fixed side paper feed mechanism and the movable side paper feed mechanism is formed; interlocked with an operation of closing the lid The movable side The feed mechanism is moved to the operating position, and the movable paper feed mechanism is moved from the operating position to the retracted position while maintaining the posture at the operating position in conjunction with opening the lid. A parallel link mechanism; an operation lever attached to the movable paper feeding mechanism section so as to be rotatable in the vertical direction; and a lock mechanism for locking the movable paper feeding mechanism section at the operating position. When the operation lever is rotated, the lock of the movable paper feeding mechanism by the lock mechanism is released.
[0020]
Here, in order to smoothly discharge the printed recording paper discharged by the paper feeding mechanism, the operation lever includes a guide table that protrudes from the movable paper feeding mechanism to the front of the printer body. It is desirable that When the movable paper feeding mechanism is in the operating position, the recording paper discharged outside through the movable paper feeding mechanism and the fixed paper feeding mechanism is guided by the guide table. Is done.
[0021]
Further, the lock mechanism is integrally formed with the operation lever, and a hook that can be turned up and down, a hook receiver that is formed on the printer main body side from which the hook can be engaged from below, and the hook that is connected to the hook. It can be set as the structure provided with the spring urged | biased in the direction engaged with respect to a receiver.
[0022]
Further, it is desirable to have operation lever rotating means for rotating the operation lever in the vertical direction with respect to the movable-side paper feed mechanism in conjunction with opening and closing of the lid. In this case, the operation lever rotating means includes an engagement portion formed on the operation lever at a position in front of the printer main body from the rotation center of the operation lever, and an engaged portion formed on the parallel link mechanism. In conjunction with the operation of opening the lid, the engaging portion engages with the engaged portion, and the operation lever is moved so that the front side portion thereof moves upward. It can be set as the structure pushed up as a center. According to this configuration, in a state where the lid is opened, that is, in a tilted state, the front side portion of the operation lever attached thereto is directed upward. Therefore, the operation of tightening the lid in the opened state is easy because the operation lever can be easily grasped.
[0023]
The operation lever rotating means includes an engagement portion formed on the operation lever at a position in front of the printer main body from the rotation center of the operation lever, and an engaged portion formed on the parallel link mechanism. In conjunction with the operation of closing the lid, the engaging portion engages with the engaged portion, and the rotation lever is moved so that the rear side portion thereof moves downward. It is possible to adopt a configuration in which the engaging portion and the engaged portion are disengaged when the movable paper feeding mechanism portion is rotated about the center and the movable side paper feeding mechanism portion reaches the operating position.
[0024]
According to this configuration, the locked state of the lid by the lock mechanism can be formed by utilizing the rotational movement of the operation lever, so that the operation of locking the lid in the closed position is simplified.
[0025]
Here, in a preferred embodiment, the recording paper discharge side portion after printing in the paper feeding mechanism is provided with a recording paper cutting cutter. The cutter can be composed of a movable blade and a fixed blade, and the movable blade can be provided in the fixed-side paper feed mechanism and the fixed blade can be provided in the movable-side paper feed mechanism. In this case, the operation lever is arranged so that the fixed blade is exposed when the movable paper feeding mechanism is in the retracted position, and the finger of the operator is not damaged. It is desirable to provide a protective cover that covers the front.
[0026]
Further, in a preferred embodiment, there is a movable guide for guiding the recording paper fed from the recording paper roll accommodated in the roll paper accommodating portion to the paper feeding mechanism portion, It is desirable that it is attached to the movable paper feeding mechanism and moves in conjunction with the operation lever.
[0027]
Preferably, the movable guide is configured to rotate integrally with the operation lever around the rotation center of the operation lever.
[0028]
According to this configuration, when the movable paper feeding mechanism is in the operating position, the recording paper is fed from the direction in which the recording paper is reliably transported by the paper feeding mechanism without causing slippage or the like. The movable guide can be moved to lead to Further, when the movable paper feeding mechanism moves to the retracted position, the movable guide can be moved so that the movable guide does not hit the components of the fixed side paper feeding mechanism.
[0029]
Here, in a preferred embodiment, the fixed-side paper feed mechanism unit includes a first roller and a second roller arranged on the upstream side and the downstream side in the recording paper transport direction with respect to the print head, respectively. Can be configured. The movable-side paper feed mechanism includes a third roller that contacts the first roller and a fourth roller that contacts the second roller when in the operating position. It can be. In this case, the recording paper is conveyed between the first and third rollers and between the second and fourth rollers.
[0030]
In the case where such a paper feeding mechanism is provided, when the movable paper feeding mechanism portion is in the operating position, the first roller and the third roller contact position with respect to the first roller. It is desirable to have a spring that presses the movable guide so as to be located on the side. In this case, the wrapping angle of the recording paper guided between the first and third rollers by the movable guide increases with respect to the first roller. Therefore, if the first roller is a driving roller, the recording paper is reliably conveyed toward the printing position without causing slipping or the like.
[0031]
Next, in order to detect whether or not the lid is closed, a guide detector for detecting the position of the movable guide may be arranged. In order to detect whether or not the recording paper fed out from the roll paper storage unit is pulled out through the movable guide, the movable guide is moved when the movable-side paper feed mechanism is in the operating position. What is necessary is just to arrange | position the recording paper detector which detects whether recording paper exists on the top.
[0032]
Next, the printer of the present invention includes: a roll paper storage unit; a lid attached to the front of the printer for opening and closing the roll paper storage unit; and a tape fed from a recording paper roll loaded in the roll paper storage unit A print head for printing on a sheet of recording paper; and a paper feed mechanism for transporting the tape-like recording paper via a print position of the print head, the paper feed mechanism being attached to the printer body side A fixed-side paper feeding mechanism, an operating position engaged with the fixed-side paper-feeding mechanism, and a movable-side paper-feeding mechanism that can move to a retracted position away from the fixed-side paper-feeding mechanism. And in the operating position, a paper feed mechanism in which a state in which the recording paper is sandwiched between the fixed side paper feed mechanism and the movable side paper feed mechanism is formed; interlocked with an operation of closing the lid The movable side The feed mechanism is moved to the operating position, and in conjunction with the opening of the lid, the movable paper feed mechanism is moved from the operating position to the retracted position while maintaining the posture at the operating position. The roll paper storage unit includes a roll holder that supports the recording paper roll, and at least a part of the roll holder can be rotated forward about its lower end. It is a holder movable part, The said holder movable part rotates ahead in connection with operation which opens the said cover, It is characterized by the above-mentioned.
[0033]
Here, the roll holder may be configured to include a bottom wall portion, a front wall portion facing the lid, a rear wall portion, and left and right side wall portions. In this case, the holder movable part may be configured to include at least the front wall portion.
[0034]
The printer of the present invention includes: a roll paper storage unit; a lid attached to the front of the printer for opening and closing the roll paper storage unit; and a tape-like form fed from a recording paper roll loaded in the roll paper storage unit A print head for printing on recording paper; and a paper feed mechanism for transporting the tape-like recording paper via a print position of the print head, the paper feed mechanism being attached to the printer body side A fixed-side paper feed mechanism, an operating position engaged with the fixed-side paper feed mechanism, and a movable-side paper feed mechanism that can move to a retracted position away from the fixed-side paper feed mechanism. A paper feeding mechanism in which the recording paper is sandwiched between the fixed-side paper feeding mechanism and the movable-side paper feeding mechanism at the operating position; in conjunction with an operation of closing the lid The movable side The feed mechanism is moved to the operating position, and the movable paper feed mechanism is moved from the operating position to the retracted position while maintaining the posture at the operating position in conjunction with opening the lid. A spring having a parallel link mechanism, a lower end portion of the lid being supported so as to be rotatable with respect to the roll paper accommodating portion side, and further pressing the lid against the parallel link mechanism at all times It is characterized by having.
[0035]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of an ink jet roll paper printer to which the present invention is applied will be described below with reference to the drawings.
[0036]
(Printer exterior configuration)
FIG. 1 is a front perspective view showing the external shape of the roll paper printer of this example, and FIG. 2 is a front perspective view showing a state in which the roll paper storage portion is opened. As shown in these drawings, the roll paper printer 1 of the present example has an exterior case 2, and the exterior case 2 has a rectangular parallelepiped shape as a whole, and the right side portion on the front surface of the printer protrudes forward in a trapezoidal shape. ing. An operation portion 3 is formed on the upper surface portion of the protruding portion, and a forwardly inclined portion following the upper surface portion is an opening / closing lid 4 for mounting or replacing the ink cartridge.
[0037]
In addition, an opening / closing lid 5 for loading or replacing the recording paper roll is attached to the front surface of the printer of the outer case 2, and a discharge port 6 through which the recording paper after printing is discharged is directly above the lid 5. Is formed. An operation lever 7 for opening and closing the lid 5 protrudes from the discharge port 6 substantially horizontally toward the front. The operation lever 7 has an operation knob 8 at the left end, and a discharge table 9 that horizontally guides the printed recording paper discharged from the discharge port 6 at the right side.
[0038]
The lid 5 of this example is rotatable about a lower end portion between a standing closed position 5A shown in FIG. 1 and a fully opened position 5B tilted almost horizontally as shown in FIG. When the lid 5 is fully opened as shown in FIG. 2, the roll paper accommodating portion 11 that accommodates the recording paper roll 10 configured inside the printer outer case 2 is exposed. In this state, the recording paper roll 10 is loaded or replaced.
[0039]
(Internal structure)
FIG. 3 is a front perspective view showing the internal structure of the roll paper printer 1, with the outer case 2, the operation knob 8 of the operation lever 7 and the discharge table 9 removed. 4 is a rear perspective view of the roll paper printer 1 in the same state, and FIG. 5 is a plan view of the roll paper printer 1 in the same state. Further, FIG. 6 is a partial perspective view in which components located above the discharge port 6 in the roll paper printer 1 in the state shown in FIG. 3 are omitted, and FIG. 7 shows the lid 5 from the state shown in FIG. It is a fragmentary perspective view at the time of making it half open.
[0040]
Referring to these drawings, the roll paper printer 1 of this example is a recording paper stored in the roll paper storage unit 11 at a position above the roll paper storage unit 11 formed at the lower end portion of the main body frame 1A. A paper transport mechanism, which will be described later, for transporting the recording paper 10a fed from the roll 10 is incorporated, and an ink jet disposed downward on the upper surface of the recording paper 10a transported toward the discharge port 6 by the paper transport mechanism. Printing is performed by the head 13. The inkjet head 13 is mounted on a carriage 16 that reciprocates along a main guide shaft 14 and a sub guide shaft 15 arranged in the printer width direction. The carriage 16 is connected to a timing belt 17 that extends in the printer width direction, and the timing belt 17 is driven by a carriage motor 18.
[0041]
A pressure damper 19 is mounted on the carriage 16, and ink is supplied to the inkjet head 13 from an ink cartridge 21 detachably mounted on the cartridge holder 20 via an ink tube (not shown) and the pressure damper 19. It is like that. In addition, a head cap 22 for head maintenance is disposed at a position outside the print area in the reciprocating movement range of the inkjet head 13, in this example, at an end position on the cartridge holder side. The inkjet head 13 is moved to the position and maintenance is performed.
[0042]
Next, as can be clearly understood from FIG. 4, a paper feed motor 23 is disposed immediately below the carriage motor 18, and this motor output shaft 23a is described later via a reduction gear train 24 composed of three gears. Is connected to a paper feed roller 25 which is a component of the paper feed mechanism. The paper feeding roller 25 is rotated by the driving force of the paper feeding motor 23, and the recording paper 10 a fed out from the recording paper roll 10 accommodated in the roll paper accommodating portion 11 is printed by the ink jet head 13 by the paper feeding roller 25. The paper is discharged to the outside through the discharge port 6 while being printed through the position. An auto cutter 26 for automatically cutting the recording paper 10a is disposed immediately above the discharge port 6. The recording paper 10a after printing is automatically cut to a predetermined length by the auto cutter 26. .
[0043]
(Cover opening / closing mechanism)
FIG. 8 is a perspective view showing a part relating to opening / closing of the lid 5 in the roll paper printer 1 of this example. 9 is a right side view thereof, FIG. 10 is a partial side view thereof, and FIG. 11 is a left side view thereof. 12 is a right side view showing a state in which the cover 5 of the roll paper printer 1 is unlocked, and FIG. 13 is a state in which the cover 5 of the roll paper printer 1 of the present embodiment is in a half-open state as in the case shown in FIG. FIG. FIG. 14 is a right side view of the state where the lid 5 is in the fully open position 5B, and FIG. 15 is a partial perspective view showing the roll paper loading unit in that state.
[0044]
First, a description will be given mainly with reference to FIGS. 8 to 12. The lid 5 that opens and closes the roll paper storage portion 11 constitutes a part of the front portion of the printer of the outer case 2. The left and right brackets 5a attached to the back of the lower end are supported so as to be able to rotate back and forth around the left and right pins 31 attached to the main body frame 1A.
[0045]
In the roll paper printer 1 of the present example, the overall configuration and operation of the mechanism for opening and closing the lid 5 are as follows. First, as will be described later, the lid 5 opens and closes together with two sets of left and right parallel link mechanisms constituting a four-bar linkage mechanism. A movable side paper feed mechanism section of the paper feed mechanism is supported on the upper end of the parallel link mechanism, and the aforementioned operation lever 7 is attached to the movable side paper feed mechanism section. By operating the operation lever 7, the lock by the lock mechanism is released. When the operation lever 7 is pulled forward after the lock is released, the movable paper feeding mechanism is moved forward while the same posture is maintained by the parallel link mechanism, and the lid 5 is accordingly opened.
[0046]
(Paper feed mechanism)
As shown in FIGS. 8 to 12, the paper feed mechanism 32 includes a fixed-side paper feed mechanism 34 positioned above the conveyed recording paper 10a and a movable side positioned below the recording paper 10a. A paper feed mechanism 35. The fixed-side paper feed mechanism 34 includes a paper feed roller 25 (first roller) to which a driving force is transmitted from the paper feed motor 23, and a paper discharge-side driven roller 36 (second roller). These rollers are stretched over the main body frame 1A so as to be horizontal in the width direction of the printer at substantially the same height. The paper feed roller 25 is disposed upstream of the inkjet head 13 in the recording paper conveyance direction, that is, the rear side of the printer, and the driven roller 36 is downstream of the inkjet head 13 in the recording paper conveyance direction. Is arranged.
[0047]
The movable paper feeding mechanism 35 abuts the driven roller 37 (third roller) pressed against the paper feeding roller 25 from below by the spring force, and similarly contacts the driven roller 36 from below. And a paper discharge side drive roller 38 (fourth roller). The movable paper feeding mechanism 35 includes a platen member 39 having an upper surface disposed horizontally between the rollers 37 and 38, and a rear side of the driven roller 37 disposed upstream in the recording paper conveyance direction. The movable guide 41 is provided.
[0048]
The horizontal upper surface of the platen member 39 faces the ink nozzle surface of the inkjet head 13 with a certain gap, and defines the print position 40 of the inkjet head 13. The movable guide 41 is a guide for guiding the recording paper 10 a fed from the recording paper roll 10 of the roll paper storage unit 11 to the nip portion of the paper feeding roller 25 and the driven roller 37.
[0049]
The paper discharge side drive roller 38 is connected to a gear train composed of gears 42, 43, and 44 that are rotatably attached to the movable side paper feed mechanism 35 (see FIG. 7). Further, the gear 44 (driven gear) meshes with a drive gear 45 formed at the end of the paper feed roller 25 of the fixed-side paper feed mechanism 34 when the lid 5 is closed (see FIG. 11). . Therefore, it is rotationally driven by the driving force of the paper feed motor 23.
[0050]
Further, the reduction ratio by the gears 42 to 44 is adjusted, and the rotational speed of the paper discharge side drive roller 38 is set to be slightly higher than the rotational speed of the paper feed roller 25. As a result, a slight tension can be applied to the recording paper 10a passing through the printing position 40, so that the interval between the recording surfaces of the inkjet head 13 and the recording paper 10a can be set to an appropriate dimension.
[0051]
Further, the discharge-side driven roller 36 has a configuration in which a plurality of disk rollers are coaxially attached at regular intervals to the rotation support shaft 36b, and the outer peripheral portion of each disk roller 36a has a sharp shape. . In this example, the rotation support shaft 36b is formed of a coil spring. Therefore, the outer peripheral surface of each disk roller 36a comes into contact with the printing surface of the recording paper 10a with a minute contact area by a minute spring force.
[0052]
The recording paper 10a after printing has its roller 36 in contact with the printing surface, but the contact area between the recording surface and the disk roller 36a is very small, and is in contact with a slight contact pressure. It is possible to avoid such adverse effects as the ink is rubbed by the roller 36 and the printing quality is deteriorated or the recording surface is stained with ink.
[0053]
In this example, the fourth roller is a driving roller and the second and third rollers are driven rollers, but one of the first and third rollers that are in contact with each other when the movable paper feeding mechanism is in the operating position. May be a driving roller and the other may be a driven roller. Similarly, one of the first and fourth rollers may be a driven roller, and the second and third rollers may be driving rollers.
[0054]
(Parallel link mechanism)
As shown in FIGS. 8 and 9 to 11, the rollers 37 and 38 of the movable-side paper feed mechanism 35 are attached to a platen member 39, and the platen member 39 includes two parallel link mechanisms 50 </ b> L and 50 </ b> R. Is supported by the upper end of the.
[0055]
One parallel link mechanism 50R includes a pair of front and rear swing arms 53R and 54R extending in the vertical direction. These upper end portions 55R and 56R are in the front-rear direction with respect to the right end portions of the pair of front and rear parallel support shafts 51 and 52 at the same height position that are horizontally bridged in the printer width direction with respect to the platen member 39. It is hinge-coupled in a rotatable state. Similarly, the lower ends 57R and 58R of the swing arms 53R and 54R are also rotatable in the front-rear direction with respect to the pair of front and rear support shafts 59R and 60R at the same height position attached to the main body frame 1A. It is hinged.
[0056]
As described above, the platen member 39 of the movable-side paper feed mechanism unit 35, the support shafts 51, 52, 59R, and 60R and the pair of swing arms 53R and 54R constitute the four-link parallel link mechanism 50R. The other parallel link mechanism 50L has the same structure. The platen member 39, the support shafts 51, 52, 59L, and 60L, and the pair of swing arms 53L and 54L constitute a four-link parallel link mechanism 50L. When the platen member 39 supported by the parallel link mechanisms 50R and 50L is pulled forward, the platen member 39 moves forward and downward while maintaining its posture.
[0057]
A fixed blade 26b of the movable blade 26a and the fixed blade 26b, which are components of the auto cutter 26, is attached to a portion of the platen member 39 on the front end side of the printer. The movable blade 26 is fixed to the main body frame 1A side.
[0058]
(Control lever, lock mechanism)
Next, a lock mechanism for locking the operation lever 7 and the movable paper feeding mechanism 35 (lid 5) will be described with reference to FIGS. As can be seen from FIG. 10, the operation lever 7 includes a lever body 71 in which the operation knob 8 and the discharge table 9 are integrally formed, a lever support member 72 to which the lever body 71 is attached, and the lever support member. 72, hooks 73L and 73R for locking formed at both ends of the rear end side of the printer. The lever support member 72 includes a lever body support plate portion 72a that extends horizontally, a fixed blade cover plate portion 72b that is bent downwardly toward the rear side of the printer and extends from the front to the bottom of the cutter fixed blade 26b. And a connecting plate portion 72c extending in a slightly inclined state toward the rear of the printer. Further, the rear end portion of the connecting plate portion 72c is bent upward, and the above-described movable guide 41 is integrally formed.
[0059]
Both end portions of the connecting plate portion 72c in the width direction of the printer are brackets 72d (L) and 72d (R) bent at a right angle upward, and these brackets 72d (L) and 72d (R) are connected to the rear side of the printer. Hooks 73L and 73R are formed in the extended portion. At the middle position in the front-rear direction of the brackets 72d (L) and 72d (R) on both sides, both end portions of the support shaft 52 extending through the flat plate member 39 in a rotatable state are similarly rotatable. It penetrates with.
[0060]
The operation lever 7 having this configuration is always pulled obliquely downward by a pair of coil springs 74R and 74L having lower ends attached to the lid 5 at both end positions on the front side of the printer with respect to the support shaft 52 which is the center of rotation. Yes. The engaging claws 73a of the hooks 73L and 73R located at the rear end of the operation lever 7 are in the pair of left and right hook engaging grooves 75L and 75R formed in the main body frame 1A by the spring force of the coil springs 74R and 74L. It is hooked from the lower side to the rear surface of the printer (see FIGS. 6 and 7). When the lever main body 71 of the operation lever 7 is pushed upward against the spring force as indicated by the arrow a, the hook engaging claws 73a of the hooks 73L and 73R can be detached from the hook engaging groove 75. FIG. 12 shows a state immediately after the hook 73R is detached.
[0061]
On the contrary, when the operating lever 7 in the state shown in FIG. 12 is pushed in the rear side of the printer, the hook engaging claw 73a of the hook 73R moves downward about the support shaft 52 against the spring force in conjunction with the operation. It moves, gets over the lower end surface of the hook engaging groove 75R, fits into the hook engaging groove 75R from below, and shifts to the locked state.
[0062]
As described above, the hooks 73L and 73R, the hook engaging grooves 75L and 75R, and the coil springs 74L and 74R constitute a lock mechanism for locking the movable paper feeding mechanism 35 to its operating position 35A. .
[0063]
Further, the upper end portion of the lid 5 that seals the roll paper accommodating portion 11 is always pressed against the front swing arms 53R and 53L by the pair of left and right coil springs 74L and 74R. Accordingly, the lid 5 rotates back and forth integrally with the swing arms 53R and 53L. That is, when the movable paper feeding mechanism 35 supported by the swing arms 53R and 53L is moved to the operating position 35A, the lid 5 is also moved to the closed position 5A in conjunction with it. On the other hand, in order to open the lid 5 so as to be in the fully open position 5B, the operation lever 7 may be pulled forward after operating the operation lever 7 to release the lock.
[0064]
(Operation of movable guide)
Here, since the movable guide 41 is integrally formed at the rear end portion of the lever support member 72 of the operation lever 7, when the operation lever 7 rotates about the support shaft 52, the movable guide 41 also becomes the support shaft 52. Move up and down around the center. The operation of the movable guide 41 will be described with reference mainly to FIGS.
[0065]
As shown in FIG. 16, in the state in which the lid 5 is in the closed position 5A, that is, in the state in which the movable paper feeding mechanism unit 35 is in the operating position 35A, the paper feeding roller 25 is driven from directly below as described above. The roller 37 is in contact. The tangent line H drawn to the contact points of these rollers is substantially horizontal, and substantially coincides with the moving direction (direction of the arrow x) of the movable paper feeding mechanism 35 when the lid 5 is opened. A curved guide surface 41a that is curved toward the nip portion of the rollers 25 and 37 is formed at the upper end portion of the movable guide 41. The highest position of the curved guide surface 41a is higher than the nip portion of the rollers 25 and 37. High position. In other words, it is at a position closer to the side of the paper feed roller 25 on the driving side than the tangent line H.
[0066]
As a result, the recording paper 10 a guided to the roller nip portion by the guide surface 41 a of the movable guide 41 is guided obliquely from the paper feed roller 25 side to the nip portions of the rollers 25 and 37. Therefore, the winding angle Θ of the recording paper 10a with respect to the paper feeding roller 25 can be made larger than when the recording paper is introduced from the same height position with respect to the roller nip portion. As a result, the recording paper 10a can be conveyed without slipping.
[0067]
FIG. 17 shows a state where the operation lever 7 is lifted to unlock the lock mechanism in order to open the lid 5. When the operation lever 7 is lifted, the movable guide 41 located on the rear side of the support shaft 52 moves downward. The highest position of the guide surface 41a of the movable guide 41 in a state where the hooks 73L and 73R are just disengaged is set to be lower than the nip portion of the paper feed roller 25 and the driven roller 37.
[0068]
As a result, after unlocking, when the operation lever 7 is pulled forward and the lid 5 is opened, the movable guide 41 is positioned below the paper feed roller 25 of the fixed side paper feed mechanism section 34. Therefore, as shown in FIG. 18, even when the movable paper feeding mechanism unit 35 moves to the near side almost horizontally, the movable guide 41 does not hit the paper feeding roller 25. The movable guide 41 shown in FIG. 18 is in the state shown in FIG.
[0069]
(Operating lever rotation mechanism)
Here, in this example, two operation lever rotation mechanisms that rotate the operation lever 7 in conjunction with the operation are provided. First, the first operation lever turning mechanism will be described. Operation assisting portions 77R and 77L (engaging portions) that can push up the operation lever 7 from below according to the rotational position are formed on the front side of the upper end portions of the swing arms 53R and 53L. That is, as shown in FIG. 12, the operation assisting portions 77R and 77L draw a locus indicated by a one-dot chain line B around the support shaft 59R. On the other hand, the corner portion 72e at the lower end of the fixed blade cover plate portion 72b of the operating lever 7 moves while being supported by the four-joint parallel link mechanisms 50R and 50L. Draw a locus with a small radius of curvature.
[0070]
In this example, the trajectories B and C intersect at the rotational position shown in FIG. 12 where the lid 5 has risen to a position before the closed position 5A (the state shown in FIGS. 9 and 11). 77R and 77L push up the corner portion 72e of the operation lever 7 from the lower side. Since the front side of the support shaft 52 is pushed up, the operation lever 7 moves toward the closed position shown in FIGS. 9 and 11 while the hook 73 formed on the rear side moves downward. Immediately before reaching the closed position, the operation assisting portions 77R and 77L are disengaged from the corner portion 72e of the operation lever 7, so that the front side of the operation lever 7 is moved downward by the spring force of the coil springs 74L and 74R.
[0071]
As described above, the hooks 73L and 73R of the operation lever 7 reach the lock position 73C indicated by the imaginary line from the position 73A indicated by the solid line in FIG. 12 through the position 73B indicated by the imaginary line. The operating force for moving the hooks 73L, 73R to the position 73B against the spring force is reduced by the force with which the operation assisting portions 77R, 77L of the swing arms 53R, 53L push up the operating lever corner portion 72e. Therefore, according to this example, since the operating force for locking the lid 5 to the closed position 5A may be small, the operability for opening and closing the lid 5 can be improved.
[0072]
Next, the operation lever 7 of this example is configured such that the front side portion thereof rotates upward even during an operation for opening the lid 5. For this purpose, the second operating lever rotating mechanism includes engaging protrusions 72f (L) and 72f (R) formed on the left and right brackets 72d (L) and 72d (R) of the operating lever 7. Further, the front left and right swing arms 50L and 50R are formed of contact surfaces 78L and 78R as engaged portions formed on a part of the rear end surface of the upper end portion.
[0073]
The formation positions of these engaging projections and contact surfaces are set so as to operate as follows. That is, when the swing arms 53L and 53R are tilted forward by a predetermined angle, the engagement protrusions 72f (L) and 72f (R) of the operation lever 7 come into contact with the contact surfaces 78L and 78R of the swing arms 53L and 53R. Further, when the swing arms 53L, 53R are tilted forward, the engagement protrusions 72f (L), 72f (R) are pushed upward relatively by the contact surfaces 78L, 78R. When the engagement protrusions 72f (L) and 72f (R) are pushed up, the operation lever 7 on which the protrusions 72f (L) and 72f (R) are formed has its front side portion centered on the support shaft 52. To turn.
[0074]
Therefore, in the state where the lid 5 is fully opened, the operation lever 7 faces obliquely upward, so that a sufficiently wide gap is formed below the tip portion. Therefore, when closing the lid 5, it is possible to easily insert a finger or the like under the tip of the operation lever 7 and lift the operation lever 7. Therefore, the operation of closing the lid 5 can be performed with good operability.
[0075]
(Movable guide detection mechanism, recording paper detection mechanism)
Next, in the printer 1 of this example, the movable guide 41 is used to detect whether or not the lid 5 of the roll paper storage unit 11 is sealed and the movable side paper feed mechanism unit 35 is positioned at the operating position. It has a micro switch to detect Further, a micro switch is provided for detecting whether or not the recording paper 10a is drawn out to the discharge port 6 side through between the fixed side paper feeding mechanism 34 and the movable side paper feeding mechanism 35.
[0076]
6, 7, 11, 16 to 18, micro switches 81 and 82 and swing levers 83 and 84 that are detection elements thereof are attached to the main body frame 1A. . The swing levers 83 and 84 are always biased downward by a biasing member (not shown) such as a torsion spring. In the state where the movable paper feeding mechanism 35 is in the operating position, a state is formed in which the swing lever 83 is pressed against the guide surface 41a of the movable guide 41 as shown in FIG. As shown in FIG. 7, when the movable paper feeding mechanism 35 moves, the swing lever 83 is rotated to its swing lower limit position by a spring force. The micro switch 81 is turned on / off according to the position of the swing lever 83, and it is detected whether or not the movable paper feeding mechanism 35 is in the operating position, in other words, whether or not the lid 5 is in the closed position. .
[0077]
On the other hand, the movable guide 41 has a slit 41b formed at the center in the width direction, and the swing lever 84 of the micro switch 82 is biased by a biasing member (not shown) such as a coil spring in the direction of fitting into the slit 41b. ) Is always energized, and the state inserted into the slit 41 b is the swing lower limit position of the swing lever 84.
[0078]
Accordingly, when the recording paper 10a is not pulled out along the guide surface 41a of the movable guide 41 when the movable side paper feeding mechanism 35 is in the operating position, the swing lever 84 is fitted into the slit 41b. Therefore, the absence of recording paper is detected.
[0079]
As can be seen from FIG. 16, these swing levers 83 and 84 also function as a paper presser that presses the recording paper 10 a so as not to lift from the guide surface 41 a of the movable guide 41.
[0080]
(Roll paper compartment)
Next, the structure of the roll paper storage unit 11 will be described. As shown in FIGS. 15 and 19, the roll paper storage unit 11 has a shape in which the recording paper roll 10 can be dropped from the upper side, and includes a roll paper holder 111 and a roll paper guide 112. The roll paper holder 111 is formed of a front wall portion 113, a right wall portion 114, a rear wall portion 115 and a bottom wall portion 116. The roll paper guide 112 is formed of a left side wall portion 117, a rear wall portion 118, and a bottom wall portion 119.
[0081]
A support shaft 120 passes through the bottom side portion of the roll paper holder 111 horizontally in the printer width direction, and is supported by the bottom plate portion 1B of the main body frame 1A. Yes. Further, an engagement protrusion 121 that protrudes in the lateral direction is formed at the front side position of the right side wall portion 114 of the roll paper holder 111. When the rear swing arm 54 </ b> R constituting the right parallel link mechanism 50 </ b> R falls forward, the front end surface 54 a of the swing arm 54 comes into contact with the engagement protrusion 121.
[0082]
Therefore, when the swing arm 54 is tilted forward, that is, when the lid 5 is fully opened, the roll paper holder 111 is also pivoted forward about the support shaft 120 and its upper opening is directed obliquely forward. The state that was met is formed. Therefore, since the recording paper roll 10 can be dropped into the roll paper holder 111 obliquely from above, loading of the recording paper roll becomes easier than when the recording paper roll 10 is dropped from directly above. .
[0083]
On the other hand, the support shaft 120 also extends through the bottom portion of the roll paper guide 112, and the roll paper guide 112 can move along the support shaft 120 in the printer width direction. That is, it can be moved in the direction of the arrow shown in FIG. 19, whereby the distance between the left side wall portion 11 7 of the roll paper holder and the right side wall portion 114 of the roll paper holder can be changed. Thus, in this example, the width of the roll paper storage unit 11 can be changed according to the width of the recording paper roll 10.
[0084]
The roll paper guide 112 is provided with a detection lever 122 for detecting that the recording paper roll 10 is low.
[0085]
In the roll holder of this example, in the holder housing portion, the bottom wall portion, the front wall portion, the rear wall portion, and one of the side wall portions rotate forward in conjunction with the operation of opening the lid. Although it is a movable part, it suffices that at least the front wall portion rotates forward in conjunction with the operation of opening the lid.
[0086]
(Opening / closing operation of the lid 5)
The opening / closing operation | movement of the lid | cover 5 in the roll paper printer 1 of this example comprised as mentioned above is demonstrated collectively below.
[0087]
First, when the lid 5 is in its closed position 5A, as shown in FIGS. 9, 10, and 11, the hooks 73L and 73R of the operating lever 7 are formed in the main body case 1A by the spring force of the coil springs 74L and 74R. The hook engaging grooves 75L and 75R are hooked. In other words, the lid 5 is in a locked state.
[0088]
When the lid 5 is opened, the operating lever 7 is pushed upward with a finger or the like against the spring force of the coil springs 74L and 74R. As a result, the operation lever 7 rotates about the support shaft 52, and the hooks 73L, 73R are lowered downward, disengage from the engagement grooves 75L, 75R, and the lock is released (see FIG. 12). Thus, in this example, since the mechanism for unlocking is simplified, it is advantageous for making the roll paper printer small and compact.
[0089]
By releasing the lock, the movable guide 41 is moved downward together with the hooks 73L and 73R, and is not in contact with the paper feed roller 25 of the fixed-side paper feed mechanism 34.
[0090]
After releasing the lock, if the operation lever 7 is pulled forward with the front end portion thereof, the platen member 39 is moved forward while maintaining its horizontal posture by the action of the four-link parallel link mechanisms 50L and 50R. Stick out.
[0091]
Since the lid 5 is always pressed against the swing arms 53R and 53L by the torsion springs 74L and 74R, the lid 5 is tilted forward around the support shaft 31 of the lower end portion 5a in conjunction with the swing arms 53L and 53R.
[0092]
In this way, the lid 5 can be opened by pulling the operation lever 7 forward of the printer. When the lid 5 is tilted forward, the front end face 54a of the swing arm 54R of the right parallel link mechanism 50R hits the engagement protrusion 121 of the roll paper holder 111 of the roll paper storage unit 11 from the rear side. Thereafter, the roll paper holder 111 also falls forward about the support shaft 120.
[0093]
When the lid 5 is further opened beyond the half-open state shown in FIG. 13, the engagement protrusions 72f (L) and 72f (R) formed on the operation lever 7 are moved to the left and right swing arms 53L and 53R on the front side. The contact surfaces 78L and 78R are formed. When the lid 5 is further opened after this state is formed, the operation lever 7 protrudes forward while being pushed upward by the contact surfaces 78L and 78R. As a result, the operation lever 7 gradually rotates around the support shaft 52 so that the front end side thereof faces upward.
[0094]
As shown in FIGS. 2, 14, and 15, when the cover 5 is completely opened, the roll paper storage unit 11 is fully opened and the table body 71 of the operation lever 7 is inclined upward. . In addition, the roll paper holder 111 falls forward. Therefore, the recording paper roll 10 can be easily loaded or replaced from diagonally above.
[0095]
Here, in the fully open state of the lid 5, the end portions of the front swing arms 53L and 53R and the upper end portion of the lid 5 pressed against the swing arms 53 are directed forward. Since these have different rotation centers, when these two members are connected by a link member or the like, the clearance between these upper end portions gradually widens when the members are tilted forward. However, in this example, the lid 5 is not connected to the swing arms 53L and 53R, and is pressed by the spring force of the coil springs 74L and 74R. Therefore, even if these members move relative to each other as they rotate, the gaps at the upper end portions of these members do not widen. For this reason, it is possible to prevent such harmful effects that a finger or the like is sandwiched in the gap and the finger is damaged when the lid 5 is closed.
[0096]
Further, in this example, rollers 37 and 38 and an automatic cutter fixed blade 26b are attached to the platen member 39, and a movable paper feed mechanism portion 35 comprising these is attached to the main body case 1A side. The fixed side paper feed mechanism unit 34 is separated. Therefore, when the recording paper drawn from the recording paper roll 10 is placed on the movable paper feeding mechanism 35 and the lid 5 is closed in this state, the recording paper is automatically placed in a printable state. Therefore, the recording paper roll can be loaded very easily.
[0097]
Further, since the roll paper holder 111 also falls to the front side, the operation of loading the recording paper roll 10 into the roll paper storage unit 11 is carried over the front wall portion 113 of the roll paper storage unit as in the conventional case. Compared to the case of dropping into the roll paper holder 111 from above, this can be done easily.
[0098]
As described above, in this example, when the recording paper roll is loaded or replaced, the substantial opening area of the roll paper container 11 can be widened, so the loading operation of the recording paper roll can be easily performed with good operability. Can do. In other words, since the substantial opening of the roll paper storage unit 11 with the lid 5 opened can be widened without widening the opening of the roll paper storage unit, the operability of the recording paper roll loading operation can be improved. It is possible to make the roll paper accommodating portion opening small without damaging it. This is extremely advantageous for making the printer small and compact.
[0099]
Furthermore, in this example, when the lid 5 is opened, the cutter fixed blade cover plate portion 72b of the operation lever 7 is moved upward. As a result, the cutter fixed blade 26b is covered with the cutter fixed blade cover plate portion 72b. Therefore, even if a finger or the like is inserted from the front side with respect to the roll paper storage unit 11, the cutter fixed blade 26b is not touched, so that the roll paper replacement operation or the like can be performed safely.
[0100]
Next, in the operation of closing the lid 5 after the recording paper roll 10 is loaded, since the operation lever 7 faces obliquely upward, a sufficiently wide gap is formed below the tip portion. ing. Therefore, the operation | work which puts a finger etc. in the said clearance gap and lifts the operation lever 7, ie, the operation | work which closes the lid | cover 5, can be performed with sufficient operativity.
[0101]
When the operation lever 7 is operated and the cover 5 is completely closed (the state shown in FIG. 12), as described above, the operation assisting portions 77L formed on the front swing arms 53L and 53R, 77R hits the corner 72e of the operating lever 7 and pushes it up from below. As a result, the hooks 73L and 73R of the operation lever 7 move backward while being pushed down. Therefore, a small operating force is required to make the hooks 73L and 73R get over the lower surfaces of the engagement grooves 75L and 75R on the main body case 1A side.
[0102]
When the lid 5 is moved to the closed position as shown in FIGS. 9, 10, and 11, the operation assisting portions 77 </ b> L and 77 </ b> R are disengaged from the corner portion 72 e of the operation lever 7. It moves upward and a locked state is formed. As a result, the lid 5 is locked in the closed position.
[0103]
【The invention's effect】
As described above, in the printer of the present invention, when the cover of the roll paper storage unit is opened, the movable paper feed mechanism unit supported by the parallel link mechanism is also moved from the upper position of the roll paper storage unit to the front of the printer. Move to the side. Therefore, when the lid is opened, a space for loading the recording paper roll into the roll paper accommodating portion can be widened.
[0104]
When the lid is closed, the movable paper feeding mechanism supported by the parallel link mechanism approaches the fixed paper feeding mechanism while maintaining its posture, so that the recording paper is sandwiched between them. A printable state can be automatically formed. Furthermore, since the movable paper feed mechanism is supported by the parallel link mechanism, the movable paper feed mechanism can be always accurately positioned at an appropriate position with respect to the fixed-side print head.
[0105]
Furthermore, in the present invention, by operating an operation lever that is attached to the movable paper feed mechanism portion so as to be pivotable up and down, the movable paper feed mechanism can be unlocked and the lid can be opened. Thus, the lock mechanism that locks the lid in its closed position and the mechanism that releases the lock by the lock mechanism can be made compact and compact.
[0106]
Furthermore, the operation lever is configured to rotate up and down with respect to the movable-side paper feeding mechanism unit, and when the lid in the opened state is closed, the front end portion of the operation lever is Since it faces upward, the operation of picking up the operation lever with a finger or the like can be easily performed. Further, when the lid is locked in the closed position, the locked state by the lock mechanism can be easily formed with a small operation force by rotating the operation lever.
[0107]
In addition to this, in the present invention, a part of the roll holder forming the roll paper accommodating portion rotates forward in conjunction with the operation of opening the lid, so that recording to the roll holder is performed with the lid opened. It is possible to easily perform the loading operation and replacement operation of the paper roll.
[Brief description of the drawings]
FIG. 1 is a front perspective view showing an external shape of a roll paper printer according to an embodiment of the present invention.
2 is a front perspective view showing a state in which a roll paper storage unit of the roll paper printer of FIG. 1 is opened. FIG.
FIG. 3 is a front perspective view showing the internal structure of the roll paper printer of FIG. 1, with the outer case and the operation knob of the operation lever and the discharge table removed.
4 is a rear perspective view of the roll paper printer in the same state as in FIG. 3. FIG.
5 is a plan view of the roll paper printer in the same state as FIG. 3; FIG.
FIG. 6 is a partial perspective view in which the components located above the discharge port in the roll paper printer are omitted even in the state shown in FIG. 3;
7 is a partial perspective view when the lid is half-opened from the state shown in FIG. 6;
8 is a perspective view showing a part relating to opening and closing of the lid in the roll paper printer of FIG. 1. FIG.
9 is a right side view of the part shown in FIG.
10 is a partial side view of FIG. 9;
11 is a left side view of the portion shown in FIG.
12 is a right side view showing a state immediately after the lid of the roll paper printer in the state shown in FIG. 8 is unlocked.
13 is a right side view of the roll paper printer when the lid of the roll paper printer is in a half-open state as in the case shown in FIG.
FIG. 14 is a right side view of the roll paper printer with the lid in a fully open position.
15 is a partial perspective view showing a roll paper loading unit in the state of FIG.
FIG. 16 is an explanatory diagram showing the operation of the movable guide formed on the operation lever.
FIG. 17 is an explanatory diagram showing the operation of the movable guide formed on the operation lever.
FIG. 18 is an explanatory diagram showing the operation of the movable guide formed on the operation lever.
FIG. 19 is a partial perspective view illustrating a configuration of a roll paper accommodation unit.
[Explanation of symbols]
1 Roll paper printer
1A Body frame
2 exterior case
3 Operation part
4 Cartridge open / close lid
5 lid
5a Bracket
5A Closed position
5B fully open position
6 outlet
7 Control lever
8 Operation knob
9 Discharge table
10 Recording paper roll
10a Recording paper
11 Roll paper container
13 Inkjet head
14 Main guide shaft
15 Sub guide shaft
16 Carriage
17 Timing belt
18 Carriage motor
19 Pressure damper
20 Cartridge holder
21 Ink cartridge
22 Head cap
23 Paper feed motor
24 Reduction gear train
25 Paper feed roller (first roller)
26 Auto cutter
26a Movable blade
26b Fixed blade
31 pin (Rotation center of lid 5)
32 Paper feed mechanism
34 Fixed-side paper feed mechanism
35 Movable paper feed mechanism
35A operation position
35B Retreat position
36 Paper discharge side driven roller (second roller)
36a disk roller
36b Roller spindle made of coil spring
37 Followed roller (third roller)
38 Paper discharge side drive roller (fourth roller)
39 Platen member
40 Print position
41 Movable guide
41a Guide surface
42, 43 gears
44 Gear (driven gear)
45 Drive gear
50L, 50R parallel link mechanism
51, 52 Spindle
53L, 53L Swing arm
54L, 54R Swing arm
55R, 56R, 55L, 56L Upper end of swing arm
57R, 57L, 58R, 58L Lower end of swing arm
59R, 60R, 59L, 60L
71 Lever body
72 Lever support member
72a Lever body support plate
72b Fixed blade cover plate part
72c Connecting plate part
72d (L), 72d (R) Bracket
74L, 74R coil spring
75L, 75R Hook engagement groove
73L, 73R Locking hook
77L, 77R Operation assistant
72e Corner of control lever
72f (L), 72f (R) engagement protrusion
78L, 78R Contact surface
81, 82 micro switch
83, 84 Swing lever (detection element)
111 Roll paper holder
112 Roll paper guide
113 Front wall part
114 Right side wall
115 Rear wall part
116 Bottom wall part
117 Left side wall
118 Rear wall part
119 Bottom wall part
120 spindle
121 Engagement protrusion
54a Front end face of swing arm
122 Detection lever

Claims (21)

  1. A roll paper container;
    A lid attached to the front of the printer to open and close the roll paper storage section;
    A print head for printing on a tape-like recording paper fed from a recording paper roll loaded in the roll paper storage unit;
    A paper feed mechanism for transporting the tape-like recording paper via a print position of the print head, the paper feed mechanism comprising a fixed-side paper feed mechanism portion attached to a printer main body side, and the fixed-side An operation position engaged with the paper feed mechanism section and a movable paper feed mechanism section movable to a retracted position away from the fixed side paper feed mechanism section. At the operation position, the fixed side paper feed mechanism A paper feeding mechanism in which a state in which the recording paper is sandwiched between a movable portion and the movable side paper feeding mechanism is formed;
    In conjunction with the operation of closing the lid, the movable side paper feed mechanism is moved to the operating position, and in conjunction with the operation of opening the lid, the movable side paper feed mechanism is placed in the operating position. A parallel link mechanism that moves from the operating position to the retracted position while being held;
    Having a printer.
  2. In claim 1,
    The parallel link mechanism includes a pair of swing arms,
    A printer in which a lower end portion of each swing arm is rotatably supported on the roll paper accommodating portion side, and an upper end portion of each swing arm is hinged to the movable paper feed mechanism portion.
  3. In claim 1,
    The fixed-side paper feed mechanism unit includes a first roller and a second roller disposed on the upstream side and the downstream side in the recording paper conveyance direction with respect to the print head,
    The movable-side paper feed mechanism unit includes a third roller that abuts on the first roller and a fourth roller that abuts on the second roller when in the operating position,
    A printer in which the recording paper is conveyed between the first and third rollers and between the second and fourth rollers.
  4. In claim 3,
    The fixed-side paper feed mechanism unit further includes a motor that drives one of the first and second rollers, and a drive gear that transmits a driving force of the motor to the movable-side paper feed mechanism unit. And
    The movable-side paper feeding mechanism unit further includes a driven gear that meshes with the drive gear when in the operating position, and the third and third driving forces are transmitted by the driving force of the motor transmitted to the driven gear. One of the four rollers is driven.
  5. In claim 4,
    The first and fourth rollers are driven by the motor;
    The printer according to claim 1, wherein the movable-side paper feed mechanism unit includes a spring that presses the third roller against the first roller at the operating position.
  6. In claim 5,
    The second roller is shaped so that it can be pressed with a minute contact portion against the recording paper conveyed between the second roller and the fourth roller, and the fourth roller is rotated. The printer is configured to be driven and rotated.
  7. In claim 6,
    The movable-side paper feed mechanism section includes a roller support member that rotatably supports the third and fourth rollers, and is attached to the roller support member and between the third and fourth rollers. With a platen plate arranged in
    One end of the pair of swing arms is hinged to the roller support member.
  8. In claim 1, further comprising:
    An operation lever attached to the movable side paper feed mechanism unit so as to be rotatable in the vertical direction; and a lock mechanism for locking the movable side paper feed mechanism unit to the operating position;
    The printer according to claim 1, wherein when the operation lever is rotated, the movable side paper feed mechanism is unlocked by the lock mechanism.
  9. In claim 8,
    The operation lever includes a guide table that protrudes forward from the movable paper feeding mechanism unit to the printer body,
    When the movable paper feeding mechanism is in the operating position, the recording paper discharged outside through the movable paper feeding mechanism and the fixed paper feeding mechanism is guided by the guide table. A printer characterized by being made.
  10. In claim 8,
    The lock mechanism includes a hook that can be turned up and down integrally with the operation lever, a hook receiver that is formed on a printer main body that can be engaged with the hook from below, and the hook that serves as the hook receiver. And a spring biased in a direction of engagement with the printer.
  11. In claim 8,
    A printer comprising operation lever rotating means for rotating the operation lever vertically with respect to the movable-side paper feed mechanism in conjunction with opening and closing of the lid.
  12. In claim 11,
    The operation lever rotating means includes an engagement portion formed on the operation lever at a position in front of the printer main body from the rotation center of the operation lever, and an engaged portion formed on the parallel link mechanism. ,
    In conjunction with the operation of opening the lid, the engaging portion engages with the engaged portion, and the operation lever is moved around the rotation center so that the front side portion thereof moves upward. A printer characterized by pushing up.
  13. In claim 11,
    The operation lever rotating means includes an engagement portion formed on the operation lever at a position in front of the printer main body from the rotation center of the operation lever, and an engaged portion formed on the parallel link mechanism. ,
    In conjunction with the operation of closing the lid, the engaging portion engages with the engaged portion, and the operation lever is moved around the rotation center so that the rear side portion thereof moves downward. The printer is characterized in that when the movable paper feeding mechanism is rotated and the movable side paper feeding mechanism reaches the operating position, the engagement between the engagement portion and the engaged portion is disengaged.
  14. The claim 8, further comprising:
    Having a cutter for cutting recording paper composed of a movable blade provided in the fixed-side paper feed mechanism and a fixed blade provided in the movable-side paper feed mechanism;
    The printer according to claim 1, wherein the operation lever includes a protective cover that covers the front of the fixed blade when the movable paper feeding mechanism is in the retracted position.
  15. The claim 8, further comprising:
    A movable guide for guiding the recording paper fed from the recording paper roll stored in the roll paper storage unit to the paper feed mechanism unit;
    The movable guide is attached to the movable-side paper feed mechanism and moves in conjunction with the operation lever.
  16. In claim 15,
    The printer according to claim 1, wherein the movable guide rotates integrally with the operation lever about a rotation center of the operation lever.
  17. In claim 15,
    The fixed-side paper feed mechanism unit includes a first roller and a second roller disposed on the upstream side and the downstream side in the recording paper conveyance direction with respect to the print head,
    The movable-side paper feed mechanism unit includes a third roller that abuts on the first roller and a fourth roller that abuts on the second roller when in the operating position,
    The recording paper is conveyed between the first and third rollers and between the second and fourth rollers;
    Further, when the movable paper feeding mechanism is in the operating position, the movable guide is positioned on the first roller side with respect to the contact position of the first and third rollers. A printer having a pressing spring.
  18. In any one of claims 15 to 17, further
    A guide detector for detecting the position of the movable guide; and a recording paper detector for detecting whether or not there is a recording sheet on the movable guide when the movable-side paper feed mechanism is in the operating position. A printer characterized by having.
  19. In claim 1,
    The roll paper container includes a roll holder that supports the recording paper roll,
    At least a part of this roll holder is a holder movable part that can rotate forward about its lower end part,
    The printer, wherein the holder movable part rotates forward in conjunction with an operation of opening the lid.
  20. In claim 19,
    The roll holder includes a bottom wall portion, a front wall portion facing the lid, a rear wall portion, and left and right side wall portions,
    The printer, wherein the holder movable part includes at least the front wall portion.
  21. In claim 1,
    The lower end portion of the lid is supported so as to be rotatable with respect to the roll paper accommodating portion side,
    The printer further comprises a spring that constantly presses the lid against the parallel link mechanism.
JP2000288467A 1999-09-22 2000-09-22 Printer with roll paper container Active JP3832219B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11-269394 1999-09-22
JP26939499 1999-09-22
JP2000288467A JP3832219B2 (en) 1999-09-22 2000-09-22 Printer with roll paper container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000288467A JP3832219B2 (en) 1999-09-22 2000-09-22 Printer with roll paper container

Publications (2)

Publication Number Publication Date
JP2001158141A JP2001158141A (en) 2001-06-12
JP3832219B2 true JP3832219B2 (en) 2006-10-11

Family

ID=26548745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000288467A Active JP3832219B2 (en) 1999-09-22 2000-09-22 Printer with roll paper container

Country Status (1)

Country Link
JP (1) JP3832219B2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007083478A (en) 2005-09-21 2007-04-05 Seiko Epson Corp Rolled paper sheet printer
JP4626504B2 (en) * 2005-12-07 2011-02-09 セイコーエプソン株式会社 Roll paper printer
US7971989B2 (en) 2005-12-07 2011-07-05 Seiko Epson Corporation Printer used with rolled sheet
JP2007175910A (en) * 2005-12-27 2007-07-12 Seiko Epson Corp Sheet roll printer
JP2007175911A (en) * 2005-12-27 2007-07-12 Seiko Epson Corp Sheet roll printer
US7878724B2 (en) 2005-12-27 2011-02-01 Seiko Epson Corporation Printer
JP5082749B2 (en) 2007-10-15 2012-11-28 セイコーエプソン株式会社 Printer
JP5304319B2 (en) * 2009-03-02 2013-10-02 セイコーエプソン株式会社 Auto cutter and printer with auto cutter
JP5552799B2 (en) * 2009-11-12 2014-07-16 セイコーエプソン株式会社 printer
JP5471583B2 (en) 2010-02-24 2014-04-16 セイコーエプソン株式会社 Roll medium feeding device and recording device
JP5621294B2 (en) 2010-03-29 2014-11-12 セイコーエプソン株式会社 Roll paper printer and cover opening / closing method of roll paper printer
JP2012006728A (en) 2010-06-25 2012-01-12 Seiko Epson Corp Consumable product accommodating device, liquid ejection apparatus and method of controlling consumable product accommodating device
JP6248599B2 (en) * 2013-12-13 2017-12-20 セイコーエプソン株式会社 Printing device

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