JP2009107287A - Printing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printing device facilitating maintenance, such as jammed paper removal and cleaning. <P>SOLUTION: When roll paper R is jammed, a top unit 3 is opened by operating an operation lever 4 located on the tip side of the top unit 3, then, a paper printing part 9 and a paper cutting part 10 are exposed outside, and then, a fixing screw 20 is removed by a screw driver or the like, a frame 18 wherein the paper cutting part 10 is stored is operated so that the upper side of the frame 18 is extended outward by taking the support shaft B located on the lower side of the frame 18 as a center. A movable blade 10 located on the upper side of the frame 18 is separated from a platen roller 14 and a paper guide 16, consequently, an operator can put his/her hands into the device and easily remove the jammed roll paper R. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a printer device that is configured to be separable from the main body in a paper cutting unit in a printer device that uses roll paper, and that enables the paper cutting unit to be manually operated to facilitate maintenance such as removal of jammed paper and cleaning. It is about.

  For example, in a printer device for POS, a receipt or a journal paper is issued using roll paper. Generally, in such a printer device, a paper printing unit for printing on the roll paper and the printed paper on the roll paper are used. And a paper cutting section for cutting the paper.

Further, the printer apparatus as described above has a configuration in which all the components, including the paper cutting section, the roll paper storage and conveyance section, and the paper printing section, are integrally stored in the apparatus main body frame. Accordingly, the layout of the main body frame is designed so as not to increase the size of the apparatus (for example, Patent Document 1).
Therefore, in the main body frame, for example, the paper printing unit and the paper cutting unit are fixed at a fixed interval in order to ensure a predetermined printing margin, and between the paper printing unit and the paper cutting unit, A paper guide is provided.

JP 2000-289272 A

  Moreover, as a paper cutting part, there exists a thing of a structure which accommodates a movable blade, a fixed blade, and a drive means in a main body case like patent document 2. FIG. In this paper cutting unit, when the paper is sandwiched during the paper cutting and locked, the driver is inserted from the outside of the main body case through the through hole provided in the main body case, The worm gear constituting the means is moved in the reverse direction, and the movable blade is moved to remove the sandwiched paper, thereby releasing the lock state of the movable blade.

Japanese Patent Publication No. 7-77711

However, Patent Document 1 has the following problems.
(1) Since the paper cutting unit and the platen roller in the paper printing unit are arranged in close proximity and fixed, and the paper cutting unit and the platen roller are surrounded by a paper guide. When roll paper jam occurs, it is difficult to remove the jammed roll paper. In addition, since the paper cutting section itself cannot be removed, maintenance work such as cleaning is difficult.
On the other hand, in Patent Document 2,
(2) Since not only the movable blade and the fixed blade but also the driving means is housed in the main body case, when a sheet is sandwiched, a driver is inserted into the through hole of the main body case, and the worm gear of the driving means is inserted. However, when removing the sandwiched paper, there is a possibility that the main body case may get in the way, and the above operation is impossible when there is no driver.
Moreover, there is a possibility that a part of the paper is cut off and remains in the main body case. In such a case, maintenance such as internal cleaning is difficult.
The present invention has been proposed to eliminate the above inconveniences, and is configured so that it can be separated from the main body in a paper cutting unit in a printer using roll paper, and the paper cutting unit can be manually operated. An object of the present invention is to provide a printer device that facilitates maintenance such as removal of jammed paper and cleaning.

  In order to solve the above-mentioned problem, in the invention according to claim 1, the roll paper in which the main body unit accommodates the roll paper accommodating and conveying unit, the paper printing unit, and the paper cutting unit adjacent to the paper printing unit. In the printer apparatus using the printer, the sheet cutting unit is mounted on the main unit so as to be able to enlarge the upper side distance from the sheet printing unit.

  As a result, when a roll paper jam occurs, the jammed roll paper can be easily removed by moving the paper cutting section so as to increase the upper side distance from the paper printing section.

  According to a second aspect of the present invention, in the printer using roll paper, the main body unit accommodates the roll paper containing and conveying unit, the paper printing unit and the paper cutting unit adjacent to the paper printing unit. The part is arranged to be detachable from the main unit.

  As a result, when a roll paper jam occurs, the paper cutting section is removed from the main body frame side, so that the periphery of the platen roller in the paper printing section is opened, and the jammed roll paper can be easily removed. And around the platen roller are easy to clean.

  In the invention according to claim 3, the paper cutting portion is formed on the fixed blade having the linear blade, the movable blade, the support member that holds the movable blade, the cam lever that drives the support member up and down, and the main body frame outer portion. And an electric speed reduction driving mechanism that disposes and applies a driving force to the cam lever, and an operation knob that manually applies a rotational force is provided on the output shaft of the electric motor in the electric speed reduction driving mechanism.

  Thereby, when a roll paper jam occurs, the output shaft of the electric motor in the electric deceleration drive mechanism can be rotated by operating the operation knob, and the jammed roll paper can be easily removed.

  The invention according to claim 4 is characterized in that an operation driver drive groove is provided at the tip of the output shaft of the electric motor in the electric deceleration drive mechanism.

  As a result, when a roll paper jam occurs, the output shaft of the electric motor in the electric deceleration drive mechanism is inserted into the drive groove, and the operation driver is operated to rotate to easily remove the jammed roll paper. be able to.

Hereinafter, a printer apparatus according to the present invention will be described with reference to one embodiment.
FIG. 1 shows an example of a printer device 1 for POS.
The printer device 1 uses a roll paper to issue a receipt or a journal paper, and includes a main body unit 2 in which a roll paper containing and conveying unit, a paper printing unit, and a paper cutting unit (described later) are disposed, A top unit 3 provided with the roll paper containing and conveying unit, a paper printing unit, and a paper cutting unit so as to be exposed / shielded is provided, and an operation lever 4 for opening and closing the top unit 3 is provided. The top unit 3 is provided with operation buttons Sw for performing various operation commands.

2 and 3, the printer device 1 has a configuration in which a main body frame 2 is accommodated in a main body unit 2 surrounded by an outer case 5 and a top frame 7 is accommodated in a top unit 3.
The main body frame 6 is formed by applying a well-known plastic processing to a thin metal plate based on the design, and a control board Pb is disposed on the bottom side (see FIG. 4). In the main body frame 6, a paper cutting unit 10 is disposed at a position below the operation lever 4 disposed on the leading end side of the roll paper containing and conveying unit 8, the paper printing unit 9, and the top frame 7.

  In the roll paper storage / conveying section 8, a storage space capable of storing the roll paper R having a predetermined width and winding diameter is secured between the top frame 7 and the main body frame 6, and the roll paper R drawn out from the storage space is supplied to A paper guide portion 11 is provided for bringing it to the printing portion 9. The paper guide portion 11 is configured by an upper guide unit 12 provided on the top frame 7 side and a transport panel 13 on the main body frame 6 side facing each other with a predetermined gap.

  The sheet printing unit 9 includes a platen roller 14 provided on the main body frame 6 side, and a print head 15 provided on the upper guide unit 12 side of the top frame 7. A paper guide 16 is disposed between the platen roller 14 and the adjacent paper cutting section 10.

The sheet cutting unit 10 will be described in detail below.
The paper cutting unit 10 has a unit structure that is detachably disposed on the main body frame 6 adjacent to the front of the paper printing unit 9.
That is, the paper cutting unit 10 is a guillotine-type paper cutting mechanism, and is integrally accommodated in a frame 18 and a fixed blade 17 having a linear blade fixed to the tip of the upper guide unit 12 of the top frame 7. The movable blade 19 has an obtuse V-shaped blade shape by combining a pair of members with each other (see FIG. 5).
Separately from the main body frame 6, the frame 18 is adjacent to the position where the paper printing unit 9 is disposed on the main body frame 6, and is mounted so that the upper side can be opened and closed about the lower support shaft B toward the front side. Thus, both side portions on the upper side are fixed to the main body frame 6 side by fixing screws 20. A movable blade 19 is accommodated in the frame 18 via a support member 21.

As shown in FIG. 6, the paper cutting unit 10 includes a support member 21 that supports the movable blade 19, a cam lever 22 that drives the support member 21 so that the movable blade 19 moves toward the fixed blade 17, and a movable A return spring 23 is provided to urge the blade 19 together with the support member 21 to return to the initial position. The cam lever 22 has a raising lever 22a and a lowering lever 22b projecting from the turning center shaft portion 22x. By applying a rotational driving force by the electric deceleration driving mechanism 24, the turning center shaft portion 22x is formed. The movable blade 19 swings and moves up and down via the support member 21.
Note that an output lever 25 protrudes from the rotation center shaft portion 22x, the cam lever 22 is displaced, and the support member 21 and the movable blade 19 are moved toward the fixed blade 17, whereby the output lever 25 is displaced. Then, the position of the movable blade 19 is detected by being brought to the detection position of the photo sensor (photo interrupter).

Next, the electric deceleration drive mechanism 24 will be described.
As shown in FIG. 7, the electric deceleration drive mechanism 24 is disposed on the outer side of the main body frame 6 and applies a driving force to the rotation center shaft portion 22 x of the cam lever 22. A worm gear 28 mounted on the output shaft 27, an idle gear 29 that meshes with the worm gear 28, and a transmission arm 30 that is mechanically coupled to a transmission pin P protruding at a predetermined position of the idle gear 29 through a long hole h. It consists of.
The output shaft 27 of the drive motor 26 is provided with an operation knob 31 for manually applying a rotational force on the base side, and an engagement groove 32 for engaging an operation driver on the tip side.

The printer apparatus 1 according to the present invention is configured as described above. Next, the operation thereof will be described.
When a print command is issued from the host side, the roll paper R is pulled out from the roll paper containing and conveying unit 8 in the main body frame 6, and the platen roller 14 in the paper printing unit 9 is driven by a drive mechanism (not shown).
The roll paper R is conveyed between the platen roller 14 and the print head 15 along the paper guide portion 11 and is printed by the print head 15.

The roll paper R passing between the platen roller 14 and the print head 15 is inserted between the fixed blade 17 and the movable blade 19, and moving the movable blade 19 toward the fixed blade 17 allows the roll paper R to be removed. Can be cut.
That is, in the paper cutting unit 10, the drive motor 26 is rotated in one direction by a paper cut command from the host side, whereby power is transmitted to the idle gear 29 through the output shaft 27 and the worm gear 28. 29 is transmitted from the transmission pin P to the transmission arm 30 through the elongated hole h, and the cam lever 22 is displaced by the rotation of the rotation center shaft portion 22x, and the raising lever 22a pushes up the support member 21 and the movable blade 19 to be fixed. It rises toward the blade 17.
When the drive motor 26 is further rotated in the same direction, the support member 21 and the movable blade 19 are returned to the initial position by the lowering lever 22b together with the return spring 23.
As described above, the printed roll paper R can be cut into a predetermined length and discharged as a receipt.

By the way, the roll paper R is conveyed from the roll paper accommodating and conveying unit 8 in the main body frame 6 along the paper guide unit 11 between the platen roller 14 and the print head 15 of the paper printing unit 9 and printed by the print head 15. In this case, the roll paper R may be entangled with the platen roller 14 and jammed.
However, since the paper guide 16 is disposed around the platen roller 14 in the vicinity of the paper cutting unit 10 without a gap, it is difficult to remove the jammed paper from the platen roller 14 as it is.

In such a case, the operation lever 4 on the tip side of the top unit 3 is operated to open the top unit 3 so as to expose the paper printing unit 9 and the paper cutting unit 10 (see FIG. 3). Then, the frame 18 that accommodates the paper cutting unit 10 is operated so that the upper side of the frame 18 is expanded outward with the support shaft B on the lower side of the frame 18 as the center (see FIG. 8).
Then, the movable blade 19 on the upper side of the frame 18 is separated from the platen roller 14 and the paper guide 16 of the paper cutting unit 10, so that the area around the platen roller 14 is opened. Thus, the operator can easily remove the roll paper R entangled with the platen roller 14 by inserting his hand. Further, the roll paper R entangled with the movable blade 19 can be easily removed.

  Although illustration is omitted, when the frame 18 that accommodates the paper cutting unit 10 is further loosened with the fixing screw 20 and completely removed from the main body frame 6, the movable blade 19 and the support member 21 in the frame 18 are cleaned. Becomes easier.

In the printer device 1 according to the present invention, the jammed paper can be removed as follows.
That is, when a jam occurs due to the paper R being bitten into the movable blade 19, if the movable blade 19 cannot be moved, the power is turned off and the main body unit 2 in the outer case 5 is opened to open the main body frame. 6 is exposed (see FIG. 2).
As a result, the electric speed reduction drive mechanism 24 is exposed, so that the movable blade 19 is moved manually by operating the operation knob 31 on the base side of the output shaft 27 of the drive motor 26, and the roll entangled with the movable blade 19. The paper R can be easily removed (see FIG. 9).
Further, even when an operation driver is engaged with the engagement groove 32 on the distal end side of the output shaft 27 of the drive motor 26 and is manually operated, the roll paper R entangled with the movable blade 19 by moving the movable blade 19. Can be easily removed.

As described above, according to the present invention, the paper cutting unit is opened at the front portion where the roll paper is pulled out from the roll paper containing and transporting unit so as to expand the upper side, thereby providing a space between the paper printing unit and the paper cutting unit. If a paper jam occurs, it can be easily removed, and maintenance such as cleaning becomes easy.
In addition, it is possible to easily remove the roll paper entangled with the movable blade by operating the electric speed reduction drive mechanism of the paper cutting unit by operating the operation knob on the base side of the output shaft of the drive motor by hand. it can.
Furthermore, even if the operation driver is engaged with the engagement groove on the tip end side of the output shaft of the drive motor and manually operated, the movable blade can be moved to easily remove the roll paper entangled with the movable blade. it can.

1 is an external perspective view showing an example of a printer apparatus according to the present invention. FIG. 2 is an external perspective view showing a structure inside an outer case from the printer device shown in FIG. 1. FIG. 2 is a perspective view of a main part showing a state in which a top unit is opened in the printer apparatus shown in FIG. FIG. 2 is an explanatory cross-sectional view of the printer apparatus shown in FIG. 1. It is a front view of the electric deceleration drive mechanism which drives a movable blade, the support means which supports a movable blade, and a movable blade among paper cutting parts. FIG. 6 is a perspective explanatory view of the movable blade, the supporting means that supports the movable blade, and the electric deceleration drive mechanism that drives the movable blade shown in FIG. 5. FIG. 6 is a perspective explanatory view from another direction of the movable blade, the supporting means that supports the movable blade, and the electric deceleration driving mechanism that drives the movable blade shown in FIG. 5. It is explanatory drawing which shows the state which expand | deployed the upper part side of the paper cutting part for jam paper removal. It is explanatory drawing at the time of operating an electric deceleration drive mechanism manually for jam paper removal.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printer apparatus 2 Main body unit 3 Top unit 4 Operation lever 5 Exterior case 6 Main body frame 7 Top frame 8 Roll paper accommodation conveyance part 9 Paper printing part 10 Paper cutting part 11 Paper guide part 12 Upper guide unit 13 Conveying panel 14 Platen roller 15 Print head 16 Paper guide 17 Fixed blade 18 Frame 19 Movable blade 20 Fixed screw 21 Support member 22 Cam lever 22x Rotation center shaft portion 22a Lifting lever 22b Lowering lever 23 Return spring 24 Electric deceleration drive mechanism 25 Output lever 26 Drive motor 27 Output shaft 28 Worm gear 29 Idle gear 30 Transmission arm 31 Operation knob 32 Engaging groove Sw Operation button Pb Control board R Roll paper B Support shaft P Transmission pin h Slot

Claims (4)

In a printer apparatus using roll paper, in which a main body frame accommodates a roll paper containing and conveying section, a paper printing section and a paper cutting section so as to be adjacent to the paper printing section,
The printer apparatus according to claim 1, wherein the paper cutting unit is attached to the main body frame so as to be able to enlarge an upper side distance from the paper printing unit. In a printer apparatus using roll paper, in which a main body frame accommodates a roll paper containing and conveying section, a paper printing section and a paper cutting section so as to be adjacent to the paper printing section,
The printer apparatus according to claim 1, wherein the paper cutting unit is detachably disposed on the main body frame.   The paper cutting unit is disposed on the outer side of the main body frame and is driven by the cam lever, the stationary blade having a linear blade, the movable blade, a support member holding the movable blade, a cam lever for driving the support member up and down. The printer device according to claim 1, further comprising an operation knob that manually applies a rotational force to an output shaft of the electric motor in the electric deceleration drive mechanism.   The printer device according to claim 3, wherein an operation driver drive groove is provided at a tip of an output shaft of the electric motor in the electric deceleration drive mechanism.

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