JPH077178Y2 - Printer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a printer for printing on two or more types of media having different lengths, and in particular, it includes a sheet separator commonly used for each of the above-mentioned media. Printers.

[Conventional technology]

Recently, printers have been used as output devices for various electronic devices, but most printers are capable of printing on two or more types of sheet-shaped media having different lengths, such as paper or film. It is becoming like this.

For example, in printers used in financial institutions,
It is customary to print on a continuously connected form and a single form that has been cut into a predetermined size.

By the way, as one of such printers, one having a structure in which a medium introduction port for introducing the medium into the printing unit and a medium ejection port for ejecting the printed medium are provided in the printer main body in parallel in relatively close proximity In this type of printer, a sheet separator for guiding a continuous long sheet-like medium (hereinafter referred to as a continuous medium) such as the above-mentioned form, and a continuous medium after printing are guided onto the sheet separator. A bifurcating dust means and a sheet guide for guiding a short fixed-form medium (hereinafter, referred to as a fixed-form medium) such as a single-cut sheet to the medium introduction port are separately formed, and these are formed according to the medium used. The guide angle is changed according to the type of medium by attaching to or detaching from the main body or by attaching a sheet separator that also functions as a sheet guide to the printer main body. If the bets separator also serves as a sheet guide, at present, not implement the Deisutabu means.

[Means for solving problems]

However, in the above-described conventional technique, in the case of the former printer, that is, in the case of the printer including the sheet separator and disturb means and the sheet guide, the sheet separator,
The day-starve means and the sheet guide must be exchanged each time, which causes a problem of poor operability.

Further, the latter printer provided with the sheet separator also serving as the sheet guide does not have the disturbing means for guiding the continuous medium after printing onto the sheet separator,
There are the following problems.

That is, the continuous medium is cut off after printing only the portion printed in the printing portion, but at this time the leading portion of the unprinted portion is wound around the platen of the printing portion,
Therefore, if the printer is left in this state for a long time or for several days until the next printing, the above-mentioned leading portion will curl, and after printing is performed and the leading portion is ejected from the medium ejection port. As a result, the curled head portion enters the medium introduction port located in the vicinity of the medium discharge port, causing a trouble such as a jam.

The present invention has been made to solve these problems, and it has good operability when changing media, and even when the leading end of a continuous medium is curled, this leading end can be inserted from the medium introduction port after printing. It is an object of the present invention to realize a printer that can prevent a trouble from being complicated.

[Means for solving problems]

To achieve this object, the present invention comprises a platen and a print head built into the printer body, and a printing unit for printing on two or more types of sheet-shaped media having different lengths and at least a short length. A medium introduction port provided on the upper surface of the printer main body for introducing a sheet-shaped medium into the printing unit, and the medium on the upper surface of the printer main body for discharging the medium after being printed by the printing unit A medium ejection port common to each medium provided in a position relatively close to the introduction port and parallel to the medium introduction port, and a guide angle that is located on the opposite side of the medium ejection port across the medium introduction port. A sheet separator rotatably arranged on the upper surface of the printer body so that the sheet separator can be changed.When printing on the long medium, the sheet separator is arranged along the upper surface of the printer body. When projecting from the rear part of the printer main body and printing on a medium having a short length, the sheet separator is set up at a predetermined angle to guide the medium having the short length to the medium introduction port. Or installed on one side of the printer body,
When printing on the medium of long length, the disturb means is set so as to close the medium introduction port and guide the medium of long length discharged from the medium discharge port onto the sheet separator, and the sheet separator. Alternatively, it is characterized in that it has a storage portion which is provided on one side of the printer main body and which stores the disturb means when printing on the medium having the short length.

[Action]

According to the present invention having the above-mentioned configuration, when printing is performed on a medium having a long length, the disturbing means is taken out from the storage portion, and the disturbing means is set so as to block the medium introduction port. It is possible to reliably guide a medium having a long length onto the sheet separator.

Also, when printing on a medium of short length, while moving the disturbing means from the set position and storing it in the storing portion, the guide angle of the sheet separator is changed,
Try to guide short media.

Therefore, according to this, even if the leading portion of a long medium is curled, the curled leading portion is reliably guided to the sheet separator after being discharged from the medium discharge port after printing by the dust means. It is possible to prevent a trouble caused by the entry of the medium through the medium introduction port. Further, it is not necessary to attach or detach the sheet separator, the day-stove means or the like each time the medium is exchanged, and the angles can be changed or set by one touch, so that the operability is improved.

〔Example〕

 Embodiments will be described below with reference to the drawings.

FIG. 1 is a perspective view of a main part showing a first embodiment of a printer according to the present invention, FIG. 2 is an overall side view of the first embodiment, and FIG. 3 is a dust wire used in the first embodiment. FIG. 4 is an enlarged cross-sectional view of part A in FIG.

In FIGS. 1 and 2, reference numeral 1 denotes a printer main body, inside of which a platen 2 and a printing section (not shown) including a printing roller and a printing head are provided. The introduction port 3 and the medium ejection port 4 are provided in parallel and relatively close to each other.

A sheet separator 5 also serves as a sheet guide, has a side plate portion 6, and a locking hook 7 is formed at the front end of the side plate portion 6. The locking hook 7 is used for the medium introduction port 3
The sheet separator 5 is rotatably attached to the rear portion of the printer main body 1 by fitting it into the locking hole 8 provided in the vicinity of the printer body 1 so that the guide angle can be changed, and the height of the side plate portion 6 is increased. Therefore, a constant gap 9 is formed between the printer body 1 and the upper surface thereof.

A stay 10 is attached to the side plate portion 6 of the sheet separator 5, and the stay 10 is rotatable about a rear end portion thereof. The stay 10 is rotated to guide a fixed medium described later. When it is set at a certain angle, it acts to maintain that posture.

11 is a flexible dust wire, which is formed in a V shape, a U shape, or a U shape as shown in the figure. Both ends 12a and 12b are bent outward. , Both ends 12a, 12b of the sheet separator 5
The dust wire 11 is rotatably mounted on the sheet separator 5 by fitting it into the mounting holes 13a and 13b provided at the front end of the sheet. The mounting is performed as follows.

That is, auxiliary grooves 14a and 14b are provided in the sheet separator 5 so as to face the mounting holes 13a and 13b, and the dust wire 11 is made to approach both ends 12a and 12b as shown in FIG. After compressing and inserting the both end portions 12a, 12b into the auxiliary grooves 14a, 14b, when the compressive force to the disturb wire 11 is released, both end portions 12a, 12b are restored by the restoring force from themselves.
Is fitted into the mounting holes 13a and 13b and is in a mounted state.

Reference numeral 15 is a storage groove as a storage portion provided in the sheet separator 5 so as to be able to store the day starve wire 11.
When the D-Starve wire 11 is stored in this storage groove 15,
As shown in FIG. 4, a projection 16 for holding the stored state is formed on the sheet separator 5 so as to project above the storage groove 15, and further the dust wire 11 is inserted into the storage groove 15.
The sheet separator 5 has a concave portion 17 for facilitating its operation when it is taken out from the sheet separator 5 in the vicinity of the protrusion 16.
It is provided in.

Reference numeral 18 denotes a regulation plate for positioning the fixed medium, which is mounted at a predetermined position of the sheet separator 5 so as to be movable in the width direction.

FIGS. 5 (I) and (II) are side sectional views showing the operation of the above-described structure, and the operation will be described with reference to FIGS. 5 (I), (II) and FIGS. explain.

In FIG. 5 (I), 19 is a continuous medium such as a form, and 20 in FIG. 5 (II) is a fixed medium such as a single form.

First, when printing is performed on the continuous medium 19, the sheet separator 5 is laid down along the upper surface of the printer main body 1 as shown in FIGS. The continuous medium 19 is projected and pulled out from a medium supply unit (not shown) installed in the rear of the printer main body 1. The continuous medium 19 pulled out is the printer main body 1 and the sheet as shown in FIG. 5 (I). The continuous medium 19 is inserted through the gap 9 formed between the platen 2 and the separator 5, and is inserted from the medium introduction port 3 of the printer body 1 to be held between the platen 2 and a not-illustrated pressing roller or the like.

After that, the dust wire 11 is taken out from the storage groove 15 of the sheet separator 5, and at that time, a finger or the like is put into the recess 17 provided in the sheet separator 5, and the dust wire is removed.
When the 11 is pulled rearward, the D starve wire 11 is disengaged from the protrusion 16 and can be easily taken out.

Then, remove the D-Starb wire 11 from both ends 12
Mounting holes 13a, 1 of the sheet separator 5 where a and 12b are fitted
3D is rotated about the center, whereby the dust wire 11 closes the medium introduction port 3 and sets the tip so as to be positioned immediately after the medium discharge port 4.

When printing is instructed to the printer body 1 in this state, the platen 2 rotates by a certain amount, the leading portion of the continuous medium 19 is wound around the platen 2, and then the continuous medium 19 is sequentially printed by a print head (not shown). Is done.

Here, the continuous medium 19 is sent by the rotation of the platen 2 accompanying printing, and is sequentially discharged from the medium discharge port 4 to the outside of the printer body 1 from the leading portion thereof. The discharged leading portion is guided by the dust wire 11. The sheet can be raised on the medium introduction port 3 and advanced on the sheet separator 5.

When the continuous medium 19 is cut in the vicinity of the medium discharge port 4 after one printing operation and left for a long time thereafter, the leading end of the continuous medium 19 is wound around the platen 2 with the cutting portion as the tip. Since the state is left as it is, the leading portion is curled, but the curled leading portion is guided to the sheet separator 5 by the dust wire 11 in the next printing, so that the curled leading portion is the medium. It does not enter the inlet 3.

On the other hand, in the case of printing on the fixed medium 20, the dust wire 11 is rotated to be housed in the housing groove 15 of the sheet separator 5, and the regulation plate 18 shown in FIG. Move it.

Then, as shown in FIG. 5 (II), the sheet separator 5
Is rotated upward around the locking hook 7, thereby standing the sheet separator 5 on the upper surface of the printer body 1 at a certain angle, and at the same time, the stay 10 attached to the side plate portion 6 of the sheet separator 5 is The sheet separator 5 is rotated about one end, and the other end is brought into contact with the printer body 1, thereby fixing the sheet separator 5 at the angle.

In this state, hold the fixed medium 20 by hand and hold the sheet separator 5
Then, the fixed medium 20 is manually fed downward and the leading end thereof is inserted from the medium introduction port 3. At this time, the disturb wire 11 is accommodated in the accommodation groove 15 as described above, and the protrusion is formed. Since the fixed medium 20 is held by the section 16, it does not interfere with the fixed medium 20, and therefore the fixed medium 20 can be easily inserted.

In this way, the leading end of the fixed medium 20 is inserted into the printer main body 1, held between the platen 2 and a press roller, and when the hand is instructed to print, the platen 2 rotates a fixed amount. Then, the leading portion of the fixed medium 20 is wound along the platen 2, and the fixed medium 20 is sequentially printed by a print head (not shown).

Here, the fixed medium 20 is fed by the rotation of the platen 2 accompanying the printing, guided to the medium introduction port 3 by using the sheet separator 5 as a guide, and at the same time, discharged from the head portion to the outside of the printer body 1 from the medium discharge port 4. However, since the fixed medium 20 is printed and discharged one by one, the fixed medium 20 is not wound around the platen 2 and left for a long time. Therefore, the leading portion is curled like the continuous medium 19. Since it does not occur, the discharged fixed medium 20 goes up along the sheet separator 5 without entering the medium introduction port 3.

In the first embodiment described above, the sheet hook 5 is attached to the printer body 1 by fitting the engaging hook 7 provided on the side plate portion 6 of the sheet separator 5 into the engaging hole 8 of the printer body 1. The structure is such that the sheet separator 5 is rotatably and detachably mounted. However, this structure is not necessarily required. For example, by pivotally supporting the side plate portion 6 on the printer body 1, the sheet separator 5 can be freely rotated. It is also possible to use the stay 10 described above as means for raising the sheet separator 5 at a certain angle when the fixed medium 20 is printed.
However, the method may be performed by another method.

Next, another embodiment will be described.

FIG. 6 is a side view of the essential portions of a second embodiment of the printer according to the present invention. This second embodiment is such that the star wire 11 can be slidably housed in the sheet separator 5. The sheet separator 5 has the storage groove.
There is a storage unit that replaces the 15th class.

Further, FIG. 7 is a side sectional view showing an essential part of a third embodiment. In this third embodiment, a disturb wire 11 is provided in the printer body 1 between the medium introducing port 3 and the medium discharging port 4. When the continuous medium 19 is to be printed, the medium wire 11 is pulled out and rotated toward the sheet separator 5 to incline the medium discharge port 4 when the continuous medium 19 is printed.
It can be set to a shape that closes.

Also in the second and third embodiments thus configured, the same operation as that of the first embodiment can be performed.

Further, FIG. 8 is a perspective view of a dustave plate 21 which is used as a dwelling means in place of the dust wire 11, in which flexible mounting portions 22a and 22b are formed at both ends. As with the day starve wire 11, it can be attached to the sheet separator 5 or the printer body 1.

[Effect of device]

As described above, the present invention is movably mounted on one of a sheet separator and a printer main body, and when printing on a medium having a long length, the medium introduction port is closed and the medium is discharged from the medium discharge port. A disturbing means that is set so as to guide the medium onto the sheet separator, and a storage portion that is provided on one of the sheet separator and the printer body and that stores the disturbing means when printing on a medium having a short length. Because it is configured,
Even if a long medium with a curled head is ejected from the medium ejection port, the curled head will not enter the printer body from the medium introduction port between the medium ejection port and the sheet separator, and jams etc. It is possible to obtain the effect of preventing the occurrence of failures.

Further, the sheet separator can change the guide angle only by rotating according to the type of medium, and the disturbing means can be set and stored with one touch,
When the medium is exchanged, these attachment / detachment operations are not necessary, and the operability is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part showing a first embodiment of a printer according to the present invention, FIG. 2 is an overall side view of the first embodiment, and FIG. 3 is a perspective wire used in the first embodiment. Perspective view,
FIG. 4 is an enlarged sectional view of a portion A in FIG. 1, FIG. 5 is a side sectional view of an essential part showing the operation of the first embodiment, and FIG. 6 is a side view of an essential part showing the second embodiment. FIG. 7 is a side sectional view of the essential part showing the third embodiment, and FIG. 8 is a perspective view of the disturb plate. 1: Printer body, 2: Platen, 3: Medium inlet, 4: Medium outlet, 5: Sheet separator, 9: Gap, 10: Stay, 11: Dust wire, 15: Storage groove, 19: Continuous medium, 20: Standard medium, 21: Dust plate

Claims (1)

[Scope of utility model registration request] 1. A printing unit comprising a platen and a print head built into a printer body for printing on two or more types of sheet-shaped media having different lengths, and a sheet-shaped medium having at least a short length. A medium introduction port provided on the upper surface of the printer body for introducing into the printing unit, and a medium introduction port on the upper surface of the printer body for ejecting the medium after being printed by the printing unit. A medium discharge port common to each medium provided in parallel to the medium introduction port at a close position, and a guide angle that can be changed on the opposite side of the medium discharge port across the medium introduction port. And a sheet separator rotatably arranged on the upper surface of the printer body, and when printing on the long medium, the sheet separator is tilted along the upper surface of the printer body. In the printer that projects from the rear part of the printer and guides the medium having the short length to the medium introduction port by setting the sheet separator at a predetermined angle when printing on the medium having the short length, the sheet separator or the printer body Set so as to be displaceably mounted on one side and close the medium introduction port and guide the long medium discharged from the medium discharge port onto the sheet separator when printing on the long medium. And a storage unit which is provided on one of the sheet separator or the printer main body and stores the disturb unit when printing on the medium having the short length.