JPH02235671A - Printer - Google Patents

Abstract

PURPOSE:To make a printable range uniform regardless of the size and type of printing form by providing a constitution in which a continuous form is detected by a cutform detection device, if the non-presence of the continuous form is detected by a continuous form detection device, and the continuous form is detected by the continuous form detection device, if the presence of the continuous form is detected by the continuous form detection device. CONSTITUTION:If a switching lever 17 is switched to the continuous side after the setting of the continuous form 1 to a pin tractor wheel unit 3, a control circuit section 21 outputs a switch command signal to a switching mechanism 9 and consequently, a paper feed roller 13 is set apart from a platen 7. Then if the continuous form 1 passes a paper end switch 5, the control circuit section 21 connects the switch command signal to the switching mechanism 9 to cause the form to come in contact with the platen 7. After this, the form is transported to a printing head 15 as wound around the platen 7, and printed by the printing head 15 until the form passes a paper end switch 11. In addition, if the switching lever 17 is switched to the cutform side, the paper feed roller 13 is set tightly close to the platen, then the cutform 19 is transported by the paper feed roller 13 and printed by the printing head as wound around the platen 7. Thus the printable range can be made uniform.

Description

Detailed Description of the Invention [Objective of the Invention 1 (Industrial Application Field) The present invention is directed to a printer device, in particular, detecting the presence or absence of paper supplied to a platen and detecting the printable range regardless of the size of the paper. The present invention relates to a printer device that makes the color uniform.

<<Prior Art>> FIG. 2 shows a schematic configuration of a conventional serial printer device.

The printing paper used in the above-mentioned serial printer device includes continuous paper 1 and single W19 paper. When printing on the continuous paper 1, use the cut/continuous paper switching lever (hereinafter referred to as the switching lever 17). >> to the continuous paper side and set the continuous paper 1 in the bin tractor unit 3. A vapor end switch 5 for detecting the continuous paper 1 is provided on the platen 7 side in the figure of the bin tractor unit 3, and after the continuous paper 1 is set, a paper feed switch (not shown),
The paper feed motor 23 is rotated by pressing a page break switch (not shown) or by a line feed command from the host side. The idle gear (dotted chain line in the figure) is interlocked with the rotational drive of the paper feed motor 23, and the continuous paper 1 passes through the bar end switch 5 of the bin tractor unit 3 provided on the platen 7 side, and the paper feed motor 23 is rotated. It is conveyed to the buffed roller 13. The continuous paper 1 conveyed to the paper feed roller 13 is wound around the platen 7 while being carried by the print head 15, where the form format is printed and the paper is discharged. Printing by the print head 15 is continued until the continuous paper 1 passes the page end switch 5.

On the other hand, when printing the ticket 19, the switching lever 17 is switched to the ticket side and the ticket 19 is set.

The set cut sheet 19 is detected by a web end sensor 11 provided near the platen 7, and is conveyed to the paper feed roller 13. Beverfeed roller 13
The ticket 19 that has been transported is printed with a document format by the print head 15 and is discharged. Above print head 1
5 is continued until the cut sheet 19 is no longer detected by the Baber end sensor 11.

The above-described continuous paper 1 and cut sheet 19 had problems such as different printing ranges.

(Problems to be Solved by the Invention) As described above, in the conventional serial printer device, when the continuous paper 1 is no longer detected by the Weber end switch 5, that is, when it passes the bin tractor unit 3, the print head 15 The printing operation stops due to.On the other hand,
When the cut sheet 19 is no longer detected by the Baber end sensor 19, the printing operation is stopped. For this reason, it is possible to print up to the last line on single sheet 19, but on continuous paper 1, the printing operation stops midway through the paper, so the last few lines are ejected without being printed, and furthermore, printing There was a problem in that operations such as paper replacement and paper setting had to be performed due to the stoppage of operation.

The present invention has been made in view of the above-mentioned problems, and its purpose is to make the printable range uniform regardless of the size and type of printing paper, thereby preventing complication of operating procedures, and further It is an object of the present invention to provide a printer device having a structure capable of improving the quality of the entire device.

[Structure of the invention] (Means for solving problem N) In order to achieve the above object, the printer!!
A platen on which a single sheet or continuous paper is placed; a roller that rotates together with the platen to convey the single sheet or continuous sheet fed onto the platen; Continuous paper detecting means for detecting; Cut sheet detecting means for detecting the presence or absence of a cut sheet supplied to the platen; and When the continuous paper detecting means detects that there is no continuous paper, the roller is brought into contact with the platen. a first control means for detecting the continuous paper by the cut sheet detection means; and when the presence of the continuous paper is detected by the continuous paper detection means, the mouth roller is separated from the platen to detect the continuous paper; and second control means for detecting the continuous paper by the paper detection means.

(Function) According to the above configuration, if the continuous paper fed to the platen is not detected, the roller that is rotated together with the platen is brought into contact with the platen in order to convey the single sheet or continuous paper fed to the platen. Then, the continuous paper sheet is detected by the single sheet detection means. On the other hand, when continuous paper being fed to the platen is detected, a roller that is rotated together with the platen is separated from the platen in order to convey the single sheet or continuous paper being fed to the platen.
Since the continuous paper is detected by the continuous paper detection means,
To make the printable range uniform regardless of the size and type of printing paper.

<<Example>> Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows a schematic configuration of a printer device according to an embodiment of the present invention, and a serial printer is taken as an example.

In FIG. 1, the printer includes a bin tractor unit 3,
Baber end switch 5, platen 7, continuous paper conveyance switching mechanism section 9, Baber feed roller 13, print head 1
5. It is composed of a control circuit section 21 and the like.

The pin tractor unit 3 sets the continuous paper 1 and conveys it to the platen 7.

The bin tractor unit 3 has two push tractors that feed paper and a pull tractor that pulls paper.
There are different types. Further, at the end of the bin tractor unit 3 on the side of the platen 7 in the figure, there is provided a web end switch 5 for detecting the presence or absence of the continuous paper 1 (paper out). Note that the Baber end switch 5 is composed of, for example, an optical sensor or the like, and when the continuous paper 1 is detected, the control circuit section 2 (described later) is activated.
1 outputs a detection signal. Further, when the continuous paper 1 is no longer detected by the paver end switch 5, a message such as paper out is displayed.

Continuous paper 1 set in the bin tractor unit 3 above
A continuous paper conveyance switching mechanism section 9 (hereinafter referred to as the switching mechanism section 9) is equipped with a paper feed motor and an idle gear to convey the paper. 》 is provided. The switching mechanism section 9 drives the Baber feed roller 13 into contact with or away from the platen 7 in response to a switching command signal from a control circuit section 21, which will be described later.

The platen 7 is rotated by a platen rotation motor (not shown), wraps the continuous paper 1 or the cut sheet 19, prints on it, and discharges the paper.

A paver end sensor 11 is located near the lower end of the platen 7.
, a barber feed roller 13, and a print head 15 are provided.

The paver end sensor 11 detects the presence or absence of a cut sheet 19 (out of paper), and is composed of, for example, an optical sensor, and outputs a detection signal to the control circuit section 21 when the cut sheet 19 is detected. Further, when the sheet 19 or the like is no longer detected by the server end sensor 11, a message such as paper out is displayed.

The paver feed port roller 13 receives a switching command signal from the switching mechanism section 9 when the continuous paper 1 passes through the bin tractor unit 3 and is no longer detected by the paver end switch 5, and when printing a single sheet 19. is input. In response to this switching command signal, the bar feed roller 13 is driven toward the platen 7 and brought into contact with the platen 7 (as shown by the broken line in the figure) or into a leaping state, thereby conveying the continuous paper 1, etc. to the print head 15. be. On the other hand, when the continuous paper 1 is set in the bin tractor unit 3, the Baber feed roller 13 is driven in the opposite direction to the platen 7 side by a switching command signal from the switching mechanism section 9, and is separated from the platen 7 (see Fig. The continuous paper 1 is conveyed to the print head 15 in the solid line section or in the open state. Printing is performed on the continuous paper 1 or cut sheet 19 that is conveyed to the platen 7 until the paper runs out.

The cut sheet 19 is inserted from the top in the figure, and the cut sheet/continuous paper switching lever (hereinafter referred to as the switching lever) 1
7 in the left and right directions of the arrows. That is, when the mode is switched to the left side of the arrow in the figure, it becomes the single sheet mode, and when it is switched to the right side of the arrow, it becomes the continuous sheet mode. Note that methods for inserting the ticket 19 include an automatic paper feeding mechanism, a horizontal inserter mechanism, a front inserter mechanism, and the like.

A control circuit section 21 is provided to control the vapor feed roller 13 and the like. This control circuit section 21 is
Baber end switch 5 and baby end sensor 11
When the continuous paper 1 is no longer detected by the vapor end switch 5, a switching command signal is output to the switching mechanism section 9. In response to the switching command signal, the switching mechanism section 9 drives the vapor feed roller 13 in a direction away from the platen 7 (as shown by the solid line in the figure). The position of the above-mentioned Bever end switch 5 is determined by the switching timing of the Bever feed roller 13 of the switching mechanism section 9 by the control circuit section 21. Also, the above timing is II
It is also possible to store it in the memory of the I control circuit section 21. On the other hand, the control circuit section 21 includes the Baber end switch 5
When detecting the continuous paper 1, it outputs a switching command signal to the switching mechanism section 9. In response to the switching command signal, the switching mechanism 9 drives the paver feed port 13 in the direction of contact with the platen 7 (as shown by the broken line in the figure). The control circuit section 21
When conveying the cut sheet 19 and the continuous paper 1 to the print head 15, the Baber feed roller 13 is brought into contact with the platen 7 and conveyed.

Next, the operation of the serial printer device having the above configuration will be explained.

First, after turning on the power to the apparatus, the staff member sets the continuous paper 1 among the printing paper into the bin tractor unit 3. After setting, the staff member switches the switching lever 17 to the continuous paper side. When switched to the continuous paper side, the control circuit section 21
By outputting a switching command signal to the switching mechanism section 9, the vapor feed port roller 13 is separated from the platen 7, that is, placed in an open state. When the set continuous paper 1 passes through the vapor end switch 5, the control circuit unit 21 determines that the detection signal from the vapor end switch 5 is interrupted and the continuous paper 1 has passed the bin tractor unit 3. . When the detection signal is interrupted, the control circuit section 21 outputs a switching command signal to the switching mechanism section 9.

Upon input of the switching command signal, the switching mechanism section 9 drives the paver feed roller 13 to bring it into contact with the platen 7.

When the paper feed roller 13 comes into contact with the platen 7 , the continuous paper 1 is conveyed to the print head 15 while being wound around the platen 7 .

The continuous paper 1 conveyed to the print head 15 is printed by the print head 15 even after passing the vapor end switch 5 of the bin tractor unit 3 until it passes the paver end switch 11. Then, predetermined information is printed on the continuous form 1 according to the form format.

As a result, printing is continued on the continuous paper 1 after the detection signal from the paver end switch 5 is interrupted, that is, after the end of the continuous paper 1 is detected, printing is continued with several lines remaining as in the conventional method. It never ends.

When the printing of the continuous paper 1 is completed and the cut sheet 19 is to be printed, the clerk switches the switching lever 17 to the cut side, and the control circuit section 21 outputs a switching command signal to the switching taIa section 9. The switching mechanism section 9 brings the vapor feed port roller 13 into contact with the platen 7, that is, brings it into the closed state. The barber feed roller 13 is closed, and the cut sheet 19 is conveyed to the barber feed roller 13 along the paper guide, and then transferred to the platen 7.
Printing is performed by the print head 15 while the paper is wrapped around the paper.

The print head 15 prints on the ticket 19 according to the form mat until it passes the vapor feed roller 13, and then the ticket is discharged.

Due to the above-described operation, the printing range does not differ between the cut sheet 19 and the continuous paper 1 as in the conventional case.

Note that in this embodiment, the printed wafer of both the continuous sheet 1 and the single sheet 19 is maintained for a predetermined period of time by the control circuit 21 after passing the paver end sensor 11. It is also possible to print up to the maximum line on the continuous paper 1 by doing this.

This embodiment is not limited to the push-in method for continuous paper, but can be applied to other printer devices equipped with all printing methods.

[Effects of the Invention] As explained above, according to the printer device according to the present invention, when there is continuous paper being fed to the platen, the roller is separated from the platen and the continuous paper is detected by the continuous paper detection means, On the other hand, when there is no continuous paper, the roller is brought into contact with the platen and the continuous paper is detected by the cut sheet detection means, so that the printable range can be made uniform regardless of the size and type of printing paper.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a printer device according to an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram showing an example of a conventional serial printer device. 1... Continuous paper 5... Baber end switch 7... Platen 9... Continuous paper conveyance switching mechanism section 11... Paper end sensor 13... Baber feed roller 15... Print head 19...Single sheet 21...Control circuit section

Claims (1)

[Scope of Claims] A platen on which a single sheet or continuous paper is placed, a roller that rotates together with the platen to convey the single sheet or continuous sheet fed onto the platen, continuous paper detection means for detecting the presence or absence of continuous paper supplied to the platen; cut-sheet detection means for detecting the presence or absence of single sheets supplied to the platen; and when the continuous paper detection means detects that there is no continuous paper, the roller a first control means for causing the continuous sheet to come into contact with the platen and detecting the continuous sheet by the sheet detecting means; and for separating the roller from the platen when the continuous sheet is detected by the continuous sheet detecting means. A printer device comprising: second control means for detecting the continuous paper by the continuous paper detection means.