JPH0447976A - Printer - Google Patents

Abstract

PURPOSE:To enable recording paper jamming to be safely simply removed by a method wherein a support component supporting an upper side guide component freely rotatably to a body is provided, and the upper side guide component is made capable of being opened and closed to a lower side guide component. CONSTITUTION:A delivery guide unit 50 is composed of a back face side support plate 52, a front face side support plate 62, and a delivery guide 27 provided freely rotatably centering a shaft 49 among them. The delivery guide 27 is composed of a guide fitting part 54, a delivery guide body 55, and a roller fitting part 56. In the case where jammed recording paper 2 is removed, an operation part 61a is slid to release locking by a detent 61b. Thereafter, when an edge part of a recording paper taking out door 42 is pulled upward to be rotated centering a fulcrum 40, a projection part 60 slides in a slit 41a of a link 41, and the delivery guide 27 pivots centering the shaft 49. Since the recording paper taking out door 42 is opened and besides the delivery guide 27 is also opened thereby, an upper face of a delivery guide 28 is exposed, and the jammed recording paper 2 can be removed by pulling out.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a printer device that prints images from a personal computer, a television receiver, etc. onto recording paper.

(Prior Art) Conventionally, as a printer device for hard copying a display screen such as a CRT, a plurality of recording papers are stored in a paper supply case, and the recording papers are taken out one by one from the paper supply case and fed to a recording section. In the recording section, a transfer paper (ink sheet) and a recording paper are held under pressure between a thermal head and a platen roller, and the recording paper is sequentially transferred and recorded, and after recording is completed, the recording paper is placed in a paper ejection case. There is something to transport.

In such a printer device, when a paper jam occurs in the recording section due to abnormal recording paper, the jammed recording paper must be removed.
As described in Japanese Patent No. 164551, the printer consists of a main body case and a cover case, and a thermal head is installed in the main body case.

A thermal head drive mechanism, an ink sheet conveyance mechanism and their drive motor are provided, and a platen roller and a platen roller drive motor are provided in the cover case.

A method has been used in which a recording paper conveyance mechanism is provided and the main case and cover case are separated into two to expose the recording paper conveyance path to the outside and remove the tied recording paper.

However, with this method, it is difficult to operate as it requires force to separate the cover case from the main case, and many parts are exposed when removing jammed recording paper, which poses safety issues. However, there were problems in applying it to printers for general home use. Additionally, in order to prevent abnormal conveyance of recording paper, it is possible to consider a method of providing various sensors, but this would complicate the structure and increase manufacturing costs.

(Problems to be Solved by the Invention) The conventional printer device described above has poor operability, such as requiring force when separating the cover case from the main body case.
Furthermore, since a large number of parts are exposed when removing jammed recording paper, there is a safety problem, and there is a problem in applying this method to a printer for general home use.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a printer device that eliminates the above-mentioned problems and can safely and easily remove jammed recording paper.

[Structure of the Invention] (Means for Solving the Problems) The present invention includes a door that is provided on the top surface of the main body so as to be openable and closable, and a door that is provided below the door to carry the recording paper to the paper discharge section. Upper and lower guide members guide the recording paper from above and below, respectively, and the upper guide member is connected to the main body so that the upper guide member can be opened and closed relative to the lower guide member. It is characterized by comprising a holding member that rotatably holds the device and an eave.

(Function) According to this configuration, jammed recording paper can be safely and easily removed by opening the door on the top surface of the main body and opening the upper guide member relative to the lower guide member. be able to.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

1 to 8 show an embodiment of a printer device according to the present invention, in which FIG. 1 is a side view of the main part of the recording section, and FIG. 2 is a perspective view showing the paper ejection guide unit of FIG. 1. Figure 3 is a side view showing the structure of the installation of the auxiliary roller in Figure 2;
The figure is an enlarged perspective view of the tip of the holding plate shown in Fig. 2, Fig. 5 is an enlarged perspective view of the tip of the guide mounting section shown in Fig. 2, and Fig. 6 is an external view of the printer device. Perspective view,
FIG. 7 is an explanatory diagram illustrating the operation of the paper discharge guide unit shown in FIG. 1, and FIG. 8 is a schematic side view showing the overall configuration of the printer device. First, explanation will be given using FIG. 8.

In FIG. 8, a paper feed case 3 capable of storing a plurality of sheets of recording paper 2 in a stacked state is disposed at the lower part of the main body 1 of the printer device. A paper discharge section 4 is provided above the paper feed case 3, into which the recording paper 2 after transfer recording is sent. Further, a recording section 5 is provided in the main body 1, and the recording section 5 is used for recording paper 2 fed from the paper feed case 3.
It is designed to be transcribed and recorded. Furthermore, an opening 1a is formed above the recording section 5 of the main body 1 to take out the jammed recording paper 2. .

The recording paper 2 is pulled out from the paper feed case 3 by a paper feed roller 6. That is, an open lower portion is formed at the top of the paper feed case 3, and a paper up plate 8 is provided at the bottom of the paper feed case 3. When the lever 9 lifts the paper up plate 8, the recording paper 2 is lifted toward the lower opening direction, and the recording paper 2 is separated one by one from above by the separation claw 36.

Then, the recording paper 2 is fed by the paper feed roller 6 to the recording section 5 via the opening lower.

The recording paper 2 fed from the paper feed case 3 is placed in the paper feed guide 1.
0 and the switching guide 11, and is guided toward the platen roller 12 side. The paper feed guide 10 is made of sheet metal, resin, or the like, and the recording paper 2 conveyed substantially horizontally from the paper feed case 3 is turned diagonally upward by the paper feed guide 10 . A guide roller 13 is provided at the tip of the paper feed guide 10 on the platen roller 12 side, and is configured to smoothly guide the recording paper 2 diagonally upward. The platen roller 12 is
It has a cylindrical shape whose outer periphery is made of an elastic body, and is rotatable around a support shaft 14 . The platen roller 12 is provided with a bearing such as a ball bearing, and the recording paper 2
The structure is such that even if there is sliding contact, there will be no load on the conveyance of the recording paper 2.

A thermal head 15 is rotatably arranged at a position facing the platen roller 12, and the thermal head 15 is attached to a head plate 16. One end of the head plate 16 is rotatable about a support shaft 17 provided below the platen roller 12 of a side frame (not shown), and the other end is rotatably attached to a lever 18. The lever 18 is rotatably attached to a drive lever 20 that is rotatable about a support shaft 19, and the thermal head 15 is oscillated by the drive lever 20 being rotationally driven by a motor (not shown). There is. An ink sheet 21 is arranged between the thermal head 15 and the platen roller 12. The ink sheet 21 is wound around two reels of an ink cassette 22, and the exposed portion between the two reels is pressed against the platen roller 12 by movement of the thermal head 15. As the thermal head 15, a line type thermal head in which a large number of heating elements are arranged in a direction perpendicular to the conveying direction of the recording paper 2 is adopted. Further, the thermal head 15 is set to be inclined at a predetermined angle with respect to the traveling direction of the recording paper 2 when the recording paper 2 is supplied. Three colors of ink, yellow, magenta, and cyan, are sequentially and cyclically applied to the ink sheet 21 in the traveling direction of the ink sheet 21.
It forms three color bands. Marks for color identification are provided between these color bands.

A capstan 23 is rotatably disposed above the platen roller 12. The capstan 23 is the recording paper 2
For example, when the image density is set to 6 dat#+i,
The circumferential surface of the capstan 23 is 0, 167 am/da
It is designed to rotate with t.

Note that the capstan 23 has a relatively rough surface.
By increasing the friction between the recording surface of the recording paper 2 and the back surface, the recording paper 2 is prevented from shifting and color misregistration is prevented from occurring.

Pinch roller 2 is placed opposite this capstan 23.
4 is disposed so as to be swingable around a support shaft 25.

The pinch roller 24 has a cylindrical shape whose outer periphery is made of an elastic material, and is rotatable about a shaft 26 . The pinch roller 24 is provided with a bearing such as a ball bearing, so that even if the recording paper 2 comes into sliding contact with the pinch roller 24, it does not impose a load on the conveyance of the recording paper 2. The pinch roller 24 is
When feeding the recording paper 2, the recording paper 2 is rotated around the support shaft 25 by a DC motor (not shown), sufficiently separated from the capstan 23, and the recording paper 2 guided upward by the paper feed guide 10 and the thermal head 15 is delivered to the capstan. 23. In addition, the pinch roller 24
When transporting the recording paper 2, the recording paper 2 is rotated about the support shaft 25 and moved in the direction of the rotation axis of the capstan 23, and the recording paper 2 is pressed between the capstan 23 and the recording paper 2.

Above the pinch roller 24 and above the capstan 23, there is a paper discharge guide 27 that guides the recording paper 2 toward the paper discharge section 4.
．． 2B is installed. The paper ejection guide 27 is connected to the link 4
1 to the recording paper take-out door 42. The paper ejection guide 27 is disposed above the paper ejection guide 28 with an appropriate interval for allowing the recording paper 2 to pass therethrough when the recording paper ejection door 42 is closed. The recording paper 2 on which the transfer and registration have been completed is guided by the paper ejection guide 27 (more precisely, the paper ejection guide main body 55 to be described later) and the paper guide 28, and is applied between the paper ejection roller 29 and the auxiliary roller 30. . The paper ejection roller 29 and the auxiliary roller 30 are also transport auxiliary rollers, and the paper ejection roller 29 is driven by a pulse motor (not shown) or the like, and assists in transporting the recording paper 2 and also transports the recording paper 2 into the paper ejection section 4. It is designed to be sent to

The switching guide 11 is designed to rotate around a shaft 37, and when the recording paper 2 is rewound from the platen roller 12 side, the recording paper 2 is moved between the switching guide 11 and the upper return guide 3B. It is designed to be guided by.

A lower return guide 3 is located above the opening lower part of the paper feed case 3.
9 is provided to further guide the recording paper 2 guided between the switching guide 11 and the upper return guide 38 to the upper side of the lower return guide 39, and to guide the recording paper 2 from the paper feed case 3 to the recording side. It serves to guide the recording paper between the paper feed guide 10 and the switching guide 11 during feeding. Furthermore, a recording paper detection element 31 is provided below the paper feed guide 10 to detect whether the leading edge of the recording paper 2 has been conveyed. The recording paper detection element 31 is composed of a light emitting section and a light receiving section, and detects that the recording paper has reached a predetermined position, and outputs a control signal for winding up the ink sheet 21. On the other hand, the thermal head 15 is provided with an ink sheet color detection element 32, which is composed of a light emitting part and a light receiving part, and a reflection plate 33.
It is set opposite to. Then, when the ink sheet 21 is wound up, light is irradiated through the ink sheet 21 and reflected by a reflecting plate, and the reflected light is received through the ink sheet 21 and the color identification mark on the ink sheet 21 is detected. , outputs a signal to stop winding of the ink sheet 21. A light emitting section 34a and a light receiving section 34b of a recording paper detection element 34 are provided above the paper discharge guide 27 and below the paper discharge guide 28, respectively. The recording paper detection element 34 detects that the leading edge of the recording paper 2 is located at the paper ejection guide 27.2.
When it is detected that the recording paper 2 has been conveyed up to 8, the paper feeding roller 6 is stopped and a signal is output to cause the capstan 23 and the pinch roller 24 to pinch the recording paper 2. At the bottom of the paper ejection guide 28 on the paper ejection section 4 side, there is a
Recording paper detection element 35 that detects that the trailing edge has been conveyed
is provided. The recording paper detection element 35 is composed of a light emitting part and a light receiving part, and detects the trailing edge of the recording paper 2 when it is ejected.
A signal for starting preparation for transfer recording of the next recording paper 2 is output.

To explain the operation of such a printer device, first, when the printer device is stopped, the thermal head 15 is in a state where it is sufficiently spaced from the platen roller 12. Further, the capstan 23 and the pinch roller 24 are also sufficiently spaced apart from each other.

When the printer device is switched from stopped to fed, the recording paper 2 is first pressed against the paper feed roller 6 by the lever 9 in the paper feed case 3, and is sent out from the opening lower by the rotation of the paper feed roller 6, and is delivered to the recording section. 5. The recording paper 2 fed from the paper feed case 3 is provided between a paper feed guide 10 and a switching guide 11, and guided to the platen roller 12 side. At this time, the thermal head 15 moves the drive lever 20
is rotated and moved to a position close to the platen roller 12. Then, the recording paper 2 passes between the platen roller 12 and the thermal head 15, is held under pressure by the capstan 23 and the pinch roller 24, and is pushed toward the paper discharge section 4 by the rotation of the capstan 23 and the pinch roller 24. transported. After this, the detection element 34
When the leading edge of the recording paper 2 is detected, a detection signal is given to an external circuit (not shown). As a result, the capstan 23 and the pinch roller 24 rotate in the opposite direction to the above, and the thermal head 15 moves to the ink sheet 2.
1 and a recording paper 2 are held in pressure contact with a platen roller 12. Then, the recording paper 2 is held under pressure between the capstan 23 and the pinch roller 24, and the recording paper 2 is held between the capstan 23 and the pinch roller 24. It moves with the rotation of the pinch roller 24, and the leading edge of the recording paper 2 is guided between the paper discharge guides 27 and 28.

The recording paper 2 guided between the paper ejection guides 27° and 28 is
Furthermore, the paper ejection roller 29. The capstan 23. is pressed and held by the auxiliary roller 30. Pinch roller 24. Paper ejection roller 29. It moves as the auxiliary roller 30 rotates. After the above-mentioned cue, the thermal head 1 appears on the recording paper 2 during this time.
The first color ink on the ink sheet 21 is sublimated by the heat generated by the heating element 5 according to the signal power, and an image is transferred and recorded. - When the color recording is completed, the thermal head 15 is separated from the platen roller 12 by the rotation of the drive lever 20, and during this time, the capstan 23 and the pinch roller 2
4. Paper ejection roller 29. The rotation of the auxiliary roller 30 moves the recording paper 2 to the recording start position again. In this case, the switching guide 11 rotates around the shaft 31 and guides the rear end of the recording paper 2 between the upper return guide 38 and the switching guide 11. After this, the second color and the third color It is recorded in the same way as one color. When the recording of the third color is completed, the thermal head 15 is separated from the platen roller 12, and during this time, the capstan 23. Pinch roller 24. Paper ejection roller 29. The rotation of the auxiliary roller 30 causes the recording paper 2 to be discharged to the paper discharge section 4 side.

Here, the paper ejection guide 2 in the printer device of this embodiment
The structure of 7.28 and its surrounding area will be explained in more detail with reference to FIG.

In FIG. 1, a paper feed guide 10, a switching guide 11,
The platen roller 12, guide roller 13, thermal head 15, paper ejection guide 28, and paper ejection guide unit 50 are provided between the back side frame 51 and the front side frame (not shown). In addition, the ink cassette 22 and paper feed case 3 are located on the front side of the main body 1 (see Fig. 6).
It can be pulled out from. The paper ejection guide unit 50 includes a back side holding plate 52, a front side holding plate 62 (see FIG. 2), and a back side holding plate 52.
and a paper discharge guide 27 that is rotatably provided around a shaft 49 between the front holding plate 62 and the front side holding plate 62. The paper ejection guide 27 includes a guide mounting portion 54 that is rotatably provided around the shaft 49, and a paper ejection guide main body 55 that is attached below the guide mounting portion 54.
The guide mounting part 54 is provided above the roller mounting part 56. The structure of the sheet discharge guide main body 55 is such that a first slope portion 55a is formed near the pinch roller 24 and faces diagonally upward toward the sheet discharge section 4, and the upper portion of this slope portion 55a is bent in the horizontal direction. A substantially horizontal horizontal surface portion 55b is formed, and a second slope portion 55c is formed by bending the horizontal surface portion 55b downward toward the sheet discharge section 4.
At the lower part of 5c, it is bent again in the horizontal direction to form a substantially horizontal horizontal surface portion 55d. On the other hand, paper ejection guide 2
The structure of the paper ejection guide 28 facing the capstan 2
An arc-shaped curved part 28a is formed above the curved part 28a, and a slope part 28b facing obliquely upward on the sheet discharge part 4 side is formed above the curved part 28a. This is the horizontal surface portion 28c. A roller mounting section 56 is rotatably mounted on the paper discharge section 4 side of the guide mounting section 54 about a shaft 57 . An auxiliary roller 30 is rotatably attached to the paper discharge section 4 side of the roller attachment section 56. A screw spring 58 is inserted between the guide mounting section 54 and the roller mounting section 56 on the side opposite to the paper discharge section 4, so as to press the auxiliary roller 30 against the paper discharge roller 29. ing.

For mounting the guide, a connecting portion 59 (see FIG. 2) is provided upright on the upper surface of the portion 54. This connecting portion 59 is provided with a protrusion 60, and this protrusion 60 is inserted into a slit 41a formed in the link 41. On the other hand, the recording paper removal door 4
A connecting portion 53 is erected on the lower surface of 2. This connecting portion 53 is provided with a protrusion 53a, and this protrusion 53a is inserted into a through hole provided on the opposite side of the link 41 from the paper discharge portion 4. The recording paper take-out door 42 is rotatable by a predetermined angle about a support shaft 40 provided on the paper discharge section 4 side of the opening 1a.

A locking member 61 is slidably provided on the recording paper take-out door 42 . The locking member 61 is composed of an operating portion 61a (see FIG. 6) provided on the upper surface exposed to the outside of the main body 1, and a locking claw 61b provided on the lower surface exposed to the inside of the main body 1. .

Furthermore, the locking member 61 has this locking claw 61b that is attached to the main body 1.
A locking portion 1 provided on the opposite side of the opening 1a from the paper discharge portion 4
b.

Note that by sliding the operating section 61a toward the paper discharge section 4 side, the lock by the locking claw 61b can be released.

The structure of the paper ejection guide unit will be explained with reference to FIG. 2.

The paper ejection guide unit 50 includes a paper ejection guide main body 55 (
1) is attached to the part 54, and this guide is attached by supporting the part 54 rotatably about the shaft 49 with respect to the rear side holding plate 52 and the front side holding plate 62. A roller attachment part 56 is provided on the paper discharge part 4 side of the mounting part 54, and a discharge brush 63 is attached to the paper discharge part 4 side of the back side holding plate 52 and the front side holding plate 62.

Bent parts 64 and 65 for attaching the front side holding plate 62 to the front side frame of the main body 1 are formed at the upper end of the front side holding plate 62 on the paper discharge section 4 side and the opposite side thereof. ing. The bent portions 64 and 65 are bent outward and have tapped holes 64a and 65b for screwing to the front side frame, respectively. A through hole 62a is formed on the paper discharge section 4 side of the front side holding plate 62, and a mounting section 54 is formed in this through hole 62a.
A shaft 49 provided on the side of the paper discharge section 4 is inserted. On the other hand, the back side holding plate 52 also has the front side holding plate 6.
A bent portion and a through hole similar to No. 2 are formed.

Furthermore, the end portions of the holding plates 52, 62 on the side of the paper discharge section 4 are bent inward to form bent portions 52b, 62b. One end and the other end of a discharge brush 63 are connected to these bent portions 52b and 62b, respectively. Discharge fibers 63a are planted downward under the discharge brush 63 to discharge static electricity from the recording paper 2 being conveyed. Furthermore, a notch 66 (
(see Fig. 4) is formed. A protrusion 67 is formed in the center of this notch 66, and this protrusion 67 supports a protrusion 68 provided on the side surface of the guide mounting portion 54. A leaf spring 69 (see FIG. 4) is formed by cutting and bending on the inside of the holding plate 62 on the side opposite to the paper discharge part 4, and this leaf spring 69 is attached to a groove part 70 provided on the side surface of the guide part 54. (See Figure 5). The guide is attached to the paper ejection section 4 of section 54.
A recess 44 is formed on the upper surface of the side. This recess 44
A pair of connecting portions 44a are provided upright, and a roller mounting portion 56 is disposed between the pair of connecting portions.

A through hole is formed in the connecting portion 44a. Further, a pair of bent portions 56a bent downward are formed on both left and right sides of the roller mounting portion 56, and a through hole is formed in each of the pair of bent portions 56a. Connecting part 4
A shaft 57 is inserted into each of the through holes of the roller mounting portion 4a and the bent portion 56a, so that the roller mounting portion 56 can rotate about the shaft 57 relative to the guide mounting portion 54. There is. Furthermore, torsion springs 58 are attached to both left and right ends of the shaft 57. Also, the roller installation is done in part 5.
There are screw springs 58 on both left and right sides opposite to the paper ejection section 4 of 6.
A locking portion 56b for locking one end is formed, and a support portion 4 for supporting the other end of the torsion spring 58 is formed in the recess 44.
4b (see FIG. 3) is formed. A pair of bent portions 56c bent downward are formed on both left and right sides of the roller attachment portion 56 on the paper discharge portion 4 side. An insertion hole is formed in this bent portion 56c, and the shaft 72 of the auxiliary roller 30 is inserted into this insertion hole. As a result, as shown in FIG. 3, the auxiliary roller 30 is pressed against the discharge roller 29 by the biasing force of the screw spring 58.

In addition, in the installation shown in FIG. 2, the plate 34c is connected to the light emitting part 34a of the recording paper detection element 34 shown in FIG. 34a can be replaced. In addition, as shown in FIG. 4, the leaf spring 69 is made by making cuts on the remaining three sides of the rectangle, leaving one lower side, and curving this rectangle downward from inside the holding plate 62. It is formed by On the other hand, as shown in FIG. 5, the guide mounting groove 70 on the side surface of the guide mounting portion 54 is interrupted below the guide mounting portion 54, so that it fits with the leaf spring 69 with a click feeling. ing.

The operation of this paper ejection guide unit will be explained with reference to FIG. 7.

First, when removing the jammed recording paper 2 in the state shown in FIG. 1, the lock by the locking claw 61b is released by sliding the operating section 61a toward the paper discharge section 4. After that, when the recording paper is taken up and the end of the door 42 is pulled upward and the recording paper take-out door 42 is rotated about the support shaft 40, the protrusion 60 slides through the slit 41a of the link 41, and the recording paper Accompanying the take-out door 42, the paper discharge guide 27 rotates around a shaft 49. As a result, as shown in FIG. 7, the recording paper take-out door 42 is opened and the paper ejection guide 27 is also opened. As a result, the paper ejection guide 28
The upper surface of the jammed recording paper 2 is exposed and can be pulled out and removed.

According to such a printer device, the jammed recording paper 2 can be removed simply by manipulating the operating section 61a and lifting the end of the recording paper take-out door 42 upward.
Compared to conventional methods, it requires less force and is easier to operate. Also, when the recording paper 2 is removed, the only members that are exposed are the paper ejection guides 27 and 28 and the members around the opening 1a, so safety when removing the recording paper 2 is also improved.

Note that paper jams may also occur at locations other than the paper ejection guides 27 and 28, that is, paper jams near the paper feed guide 10 and switching guide 11;
By taking it out, the jammed recording paper 2 can be removed. This makes it possible to provide a printer device suitable for general home use.

Further, in order to simplify the structure, the link 41 may not be provided, and the recording paper ejection door 42 and the paper ejection guide 27 may be operated separately.

[Effects of the Invention] As described above, according to the present invention, jammed recording paper can be safely and easily removed, so that a printer device suitable for general home use can be provided.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a recording section which is a main part of an embodiment of a printer device according to the present invention, FIG. 2 is a perspective view showing the paper ejection guide unit shown in FIG. 1, and FIG. The installation of the auxiliary roller is a side view showing the structure, Figure 4 is an enlarged perspective view showing the tip of the paper ejection guide in Figure 2, and Figure 5 is an enlarged view of the tip of the guide installation in Figure 2. The perspective view shown in FIG.
FIG. 7 is an explanatory diagram illustrating the operation of the paper discharge guide unit shown in FIG. 1, and FIG. 8 is a schematic side view showing the overall configuration of the printer device. 1...Main body, 1a...Opening, 2...Recording paper, 3.
... Paper feed case, 4... Paper discharge section, 27, 28... Paper discharge guide, 42... Recording paper ejection door, 52... Holding plate, 55... Paper discharge guide body. Figure 4 Figure 1 Figure 3! ! ! ff Figure 5 Figure 6 Figure 7

Claims (1)

[Scope of Claims] A door provided on the top surface of the main body so as to be openable and closable, and an upper side and a door provided below the door to guide the recording paper conveyed to the paper ejection section from above and below, respectively. A lower guide member; and a holding member that rotatably holds the upper guide member relative to the main body so that the upper guide member can be opened and closed relative to the lower guide member. A printer device characterized by: