JPH061015A - Printer - Google Patents

Abstract

PURPOSE:To provide a printer with a sheet limit component not disturbing the sheet setting. CONSTITUTION:A printer is provided with an operation opening 3 for setting a sheet 2 from outside and formed on one side face of a first printer main body 1, a cover 4 for opening and closing the operation opening 3 and a sheet limit component 6 for limiting the sheet 2 in a space available for EOF sensor disposed on one side face side of a sheet passage 5 in the operation opening 3, and the sheet limit component 6 is formed movably all over the operation position of the sheet passage 5 on one side face side to the evacuating position of the sheet passage 5 on the side edge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer device.

[0002]

2. Description of the Related Art In a conventional printer, a hopper for storing unused paper and a stacker for accumulating the printed paper are provided inside the printer body. In a medium-speed or high-speed printer device that uses a large amount of paper in a short time, it is necessary to prepare a large amount of paper, so the space for storing unused paper must be large.

Moreover, since the space for storing the unused paper is formed to be large according to the maximum size of the paper used, a part of the space for storing the unused paper is provided for the user who uses only the small size paper. Becomes a dead space that is completely useless.

Further, in this case, since the amount of paper is large and the weight is large, the cover of the printer main body is opened,
The work of putting unused paper into the printer body puts a heavy burden on the operator.

Therefore, in order to reduce the dead space in the printer body to reduce the size of the printer body and to reduce the labor load of the operator who carries a heavy paper into the printer body, the unused paper is stored in the printer body. A printer device is being developed which is provided outside and has a work opening for loading the front end of a sheet into the printer main body on one lateral side of the printer main body, and a cover for opening and closing most of the work opening. .

[0006] Such a printer device is provided with an EOF detection device for detecting the end (hereinafter referred to as EOF) of the sheet supplied from the outside.
It is desirable to detect EOF as soon as possible. Further, when the printing speed is increased, it is desired to detect EOF earlier. Therefore, in such a printer device, the EOF detection device is arranged in the work opening.

[0007]

By the way, when the paper is taken in from the outside, the paper passage in the working port is formed wide in the thickness direction of the paper so that the paper is corrugated to some extent in order to reduce the resistance of the paper conveyance. .

However, in order to reliably detect the EOF, it is necessary to limit the range through which the paper passes within a certain range, so that the range through which the paper passes on one side of the paper path, that is, the cover side. A sheet limiting member that limits the amount within a certain range is provided.

Therefore, when the paper is set in the printer main body, the paper limiting member is located on the front side of the paper path and becomes an obstacle, which makes it difficult to set the paper. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a printer device in which the sheet limiting member does not interfere with the sheet setting.

[0010]

According to the present invention, for example, as shown in FIG. 1, a work port 3 for setting a sheet 2 from the outside on one lateral side surface of a printer body 1 and the work port 3 are opened and closed. The above object is achieved on the premise of a printer device provided with a cover 4 and a paper limiting member 6 arranged on one lateral side of the paper passage 5 for detecting the end of the paper 2 in the work opening 3. Therefore, the following measures are taken.

That is, the sheet limiting member 6 is provided so as to be movable between an operating position on one side of the sheet passage 5 and a retracted position on the side edge of the sheet passage 5.

[0012]

When the paper restricting member 6 is moved to the retracted position, one side of the paper passage 5 is opened, and the paper 2 can be set in the printer body 1 without being disturbed by the paper restricting member 6.
Further, when the sheet limiting member 6 is moved to the operating position after the sheet 2 is set in the printer body 1, the lateral movement range of the sheet 2 is limited by the sheet limiting member 6, so that the sheet 2 The end of can be detected reliably.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A printer device according to an embodiment of the present invention will be described below in detail with reference to the drawings.

As shown in the perspective view of FIG. 1, this printer device has a working port 3 for setting a sheet 2 on the upper half of the right lateral side of a printer body 1 and a cover 4 for opening and closing the working port 3. It has and.

A rear end portion of the cover 4 is connected to the printer body 1 so as to be openable and closable, and the cover 4 is opened so that the leading end portion of the sheet 2 is disposed below the working port 3 in a cartridge case 8.
After being set in the transfer unit 9 in the printer main body 1, the transfer unit 9 is operated to automatically load.

As shown in the plan view of FIG. 2, between the closed cover 4 and the printer main body 1, a paper passage 5 through which the paper 2 from the cartridge case 8 to the transport portion 9 passes.
The EOF detection device 10 for detecting the end of the sheet 2 is provided on the lower front side of the sheet path 5.

The EOF detection device 10 includes a pair of sheet limiting members 6a and 61 for limiting the moving range of the sheet 2 in the thickness direction.
A light emitting element 12 provided in one of the sheet limiting members 6a and 61 (here, the inner sheet limiting member 11) and the light emitting element 12 in the other (here, the outer sheet limiting member 6). The light receiving element 13 provided facing each other.

Both paper limiting members 6a and 61 are supported by the printer body 1 so as to be movable in the front-rear direction (vertical direction in FIG. 2). Operating position between the two (phantom line in Figure 2)
Then, both paper limiting members 6a and 61 are reciprocally driven over the side edge of the paper 2, that is, the retracted position located in front (solid line in FIG. 2).

The drive unit 7 includes both paper limiting members 6a
The first rack 14 supported by 61 and having a row of teeth arranged in the front-rear direction
And a large diameter pinion 15a which is rotatably supported at a predetermined position of the printer body 1 and meshes with the first rack 14.
And a small diameter pinion 15b coaxial with the large diameter pinion 15a.
And the printer main body 1 above the both paper limiting members 6a and 61.
A lever 16 movably supported on the left and right, and a lever 16
Fixed to the second rack 17 having a row of teeth arranged in the left-right direction that mesh with the small-diameter pinion 15b, and both paper limiting members 6a.
A spring 18 for urging 61 to the retracted position.

When the cover 4 is open, the paper limiting members 6a and 61 and the first rack 14 are held in the retracted position by the spring 18, and the right end of the lever 16 projects to the right of the printer body 1. When the cover 4 is closed, the right end portion of the lever 16 is pushed into the printer body 1 by the cover 4 against the spring 18, and both paper limiting members 6a and 6a.
The first and first racks 14 are held in the operating position.

Therefore, when the operator opens the cover 4 to set the paper 2, the spring 18 causes the EOF to be set.
The detection device 10 retracts in front of the paper passage 5 and moves to the paper passage 5.
Since the right side of is opened, the paper 2 can be set without being disturbed by the EOF detection device 10.

Further, when the cover 4 is closed after the paper 2 is set, the EOF detection device 10 advances to the operating position, and the range through which the paper 2 passes is limited by both paper limiting members 6a and 61, and the EOF detection device 10 The side edge of the sheet 2 passes between the light emitting element 12 and the light receiving element 13 of the sheet 10, and the end of the sheet 2 can be reliably detected.

Further, the opening / closing of the cover 4 and the EOF detection device 1
Since it is linked with the movement of 0, it is necessary for the operator to purposely move the EOF detection device 10 to the retracted position after opening the cover 4, or to return the EOF detection device 10 to the operating position before closing the cover 4. In addition, the labor load on the operator can be reduced, and the EOF detection device 10
It is possible to prevent the cover 4 from being closed by forgetting to return it to the operating position.

In addition, in this embodiment, since the entire EOF detection device 10 is reciprocated between the operating position and the retracted position by the drive device 7, the EOF detection device 1
There is no possibility that the positional relationship between the light emitting element 12 and the light receiving element 13 of 0 may change due to wear of the first rack 14, the large diameter pinion 15a, the small diameter pinion 15b, and the second rack 17 of the drive device 7 or the deterioration of the spring 18, If the positions of the light emitting element 12 and the light receiving element 13 of the EOF detection device 10 are adjusted at the time of manufacturing, it becomes unnecessary to adjust the positional relationship between them.

In this embodiment, the EOF detection device 1
Although 0 is configured to move horizontally, for example, in FIG.
As shown in the side view of (a), the EOF detection device 10 can be deformed so as to swing around the horizontal axis.

Further, as shown in FIG. 3B, in the EOF detection device 10, only the sheet limiting member 6 located on the right side of the sheet path 5 (and the light receiving element 13 provided therein) is in the operating position. It is also possible to deform so as to be displaced between the (imaginary line) and the retracted position (solid line).

Further, the retreat position may be set in front of the paper passage 5, and as shown in FIG. 3C, the paper limiting member 6 of the EOF detection device 10 located on the right side of the paper passage 5. Even if only (and the light receiving element 13 provided therein) is deformed so as to swing about the vertical axis center between the operating position (phantom line) and the retracted position to the front right of the paper path 5 (solid line). Good.

In another embodiment of the present invention shown in the perspective view of FIG. 4, a U-shaped paper limiting member 6 is provided on the lower front side of the paper passage 5. As shown in the perspective view of FIG. 5 and the plan view of FIG. 6, the sheet limiting member 6 extends from the operating position located on the left side of the front portion of the sheet passage 5 and the retracted position in front of the sheet passage 5 to the longitudinal axis. It is rotatably supported by the printer main body 1 and can be switched between an operating position and a retracted position by a driving device 7.

The drive unit 7 includes a spring 19 for urging the sheet limiting member 6 to the operating position and a rotary solenoid 20 for moving the sheet limiting member 6 to the retracted position against the spring.
The operator operates the operation switch (not shown) at any time to operate the transport unit 11 and at the same time the operation of the rotary solenoid 20 is stopped, and the sheet limiting member 6 is moved to the operation position by the spring 19, and the operation switch is turned on. When operated to stop the operation of the transport unit 9, the rotary solenoid 20 is operated at the same time, and the sheet limiting member 6 is moved to the retracted position and held.

Further, in this embodiment, the light-emitting element 12 and the light-receiving element 13 of the EOF detection device 10 are sandwiched with the paper path 5 restricted by the paper restriction member 6 located in the operating position in FIG. They are installed so that they face each other.

In this embodiment, since the operation of the driving device 7 is independent of the operation of the cover 4, after the paper 2 is set,
It is possible to prevent the operation of the printer main body 1 from being stopped by opening the cover 4 and observing the flow state of the paper 2, or erroneously determining that the EOF is detected when the cover 4 is opened.

Since the other construction, operation and effect of this embodiment are the same as those of the above-mentioned one embodiment, their description will be omitted to avoid duplication. In this embodiment, the rotary solenoid 20 is turned on and off by the cover 4
It does not prevent that it is configured to be controlled by opening and closing.

Further, it is also possible to move the sheet limiting member 6 in the horizontal direction and to retract it toward the side edge of the sheet passage 5.

[0034]

As described above, according to the present invention, in order to detect the EOF, the sheet limiting member for limiting the area through which the sheet passes is defined by the operating position on one side of the sheet and the rule of the sheet path. Since it can be moved to and from the retracted position on the edge, one side of the paper is opened by positioning the paper limiting member at the retracted position, and the paper is placed in the printer body without being disturbed by the paper limiting member. You can set it.

In the present invention, in particular, a drive device is provided for reciprocating the sheet limiting member between the operating position and the retracted position, and the drive device moves the sheet limiting member to the retracted position when the cover is opened and when the cover is closed. When it is configured to move the sheet limiting member to the operating position, the operator does not need to move the sheet limiting member,
It is possible to reduce the labor load on the operator and prevent the cover from being closed without forgetting to return the sheet limiting member to the operating position. Therefore, the cover is closed while overlooking that the paper limiting member is in the retracted position, and it is possible to prevent the printer body from being operated and damage the paper, or to prevent transfer failure due to the damaged paper, and also to close the cover. For example, it is possible to reliably detect the EOF, and it is possible to prevent the operation of the printer main body from being erroneously stopped as the EOF even though the paper is set.

Further, in the present invention, in particular, a driving device for reciprocating the sheet limiting member between the operating position and the retracted position is provided, and the driving device positions the sheet limiting member in the operating position during operation of the printer body, When the paper limiting member is arranged to be in the retracted position when the main body is at rest, it is possible to prevent the printer main body from being operated without forgetting to return the paper limiting member to the operating position. Therefore, it is possible to prevent the printer body from being operated by forgetting to return the paper restricting member to the operating position and to prevent the paper from being damaged, or the transfer failure due to the damaged paper to be generated, and the EOF can be surely detected so that the paper is set. However, it is possible to prevent the operation of the printer main body from being mistakenly stopped as an EOF despite the fact that it is being performed.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a plan view of an essential part of an embodiment of the present invention.

FIG. 3 is a side view of (a) modification of the embodiment of the present invention,
(B) It is a top view of another modification and (c) is a top view of another modification.

FIG. 4 is a perspective view of another embodiment of the present invention.

FIG. 5 is a perspective view of a main part of another embodiment of the present invention.

FIG. 6 is a plan view of another embodiment of the present invention.

[Explanation of symbols]

 1 Printer Main Body 2 Paper 3 Working Port 4 Cover 5 Paper Path 6 Paper Limiting Member 7 Drive Unit

Claims (3)

[Claims] 1. A work opening (3) for setting a paper (2) from the outside on one lateral side of the printer body (1), and the work opening.
Cover (4) that opens and closes (3), and paper (2) inside the work opening (3).
In a printer device provided with a paper limiting member (6) arranged on one lateral side of the paper passage (5) for detecting the end of the paper passage (5), the above paper limiting member (6) is installed in the paper passage (5). A printer device, which is provided so as to be movable between an operating position on the lateral side surface and a retracted position on the side edge of the paper path (5). 2. A drive device (7) for reciprocating the paper restricting member (6) between an operating position and a retracted position, the drive device (7) when the cover (4) is opened.
The printer device according to claim 1, wherein the printer device is configured to move the (6) to the retracted position, and to move the paper limiting member (6) to the operating position when the cover (4) is closed. 3. A drive device (7) for reciprocating the paper restricting member (6) between an operating position and a retracted position is provided, and the drive device (7) operates when the printer body (1) is operating. 2. The printer device according to claim 1, wherein 6) is located in the operating position, and the paper limiting member (6) is located in the retracted position when the printer body (1) is at rest.