JPH048566A - Printer - Google Patents

Abstract

PURPOSE:To ensure the detection of a paper cutting position to cut the paper passed through a printing part to a predetermined length by a method wherein a sensor part is composed by disposing two sensors on the both sides of the paper. CONSTITUTION:A sensor part 3 consists of two light-transmitting sensors 9a, 9b, which are opposedly disposed across tag paper 1. The tag paper 1 passed through a printing part 2 is fed to the sensor part 3 through a cutter part 4. In the sensor part 3, cutout parts 10 provided on the both sides of the tag paper 1 are passed between light-emitting parts 11 and light-receiving parts 12 of the light-transmitting sensors 9a, 9b, whereby the cutting position of the tag paper 1 is detected. When the cutting position of the tag paper 1 is detected by the sensor part 3, a stepping motor 7 is rotated reverse to feed the cutout parts 10 of the tag paper 1 back to the position of the cutter part 4. After that, a cutter motor 13 is driven to rotate a rotary cutter 14 to cut the tag paper 1 at the cutout parts 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer used, for example, in a package tag (baggage tag) issuing device.

[Prior Art] Conventionally, this type of printer has a printing section that prints image information such as a bar code on continuous paper such as tag paper, and a sensor section that detects the cutting position of the continuous paper that has passed through this printing section. ,
It consists of a cutter section that cuts the continuous paper into a predetermined length based on the signal from the sensor section, and when the sensor section detects the cutting position, the paper is returned to the cutter section and cut. After cutting, the leading edge of the paper that has not been printed is returned to the printing section in preparation for the next printing.

[Problems to be Solved by the Invention] However, in the conventional printers as described above, the light-transmissive sensor that detects the cutting position of the paper is only on one side of the paper, so the gap formed on both sides of the continuous paper is There is a problem in that if there are punch errors or punch scum in the section, the cutting position cannot be detected.

The present invention was made in view of these problems, and
The purpose is to provide a printer that can reliably detect the paper cutting position and cut the paper that has passed through the printing section into a predetermined length.

[Means for Solving the Problems] In order to solve the above problems, the present invention includes: a printing unit that prints image information on continuous paper; a sensor unit that detects the cutting position of the paper that has passed through the printing unit; A cutter section that cuts the paper into a predetermined length based on a signal from the sensor section is provided, and the sensor section has two sensors arranged on both sides of the paper.

[Function] In the present invention, the sensor section for detecting the cutting position of continuous paper such as tag paper is composed of two sensors, and these sensors are arranged on both sides of the paper. It is possible to reliably detect the cutting position of the paper even if there is a punch error or punch waste on one side of the constriction.

[Example 1] An example of the present invention will be described below with reference to FIGS. 1 to 6.

FIG. 2 is a schematic diagram of a luggage tag printer showing an embodiment of the present invention, and this luggage tag printer has a printing section that prints image information such as a bar code as shown in FIG. 3 on tag paper 1. 2, a sensor section 3 that detects the cutting position of the tag paper 1 that has passed through the printing section 2, and this sensor section 3.
The cutter section 4 cuts the tag paper 1 into a predetermined length based on a signal from the cutter section 4.

The printing section 2 includes a platen 5 and a thermal head 6, and the thermal head 6 is pressed against the platen 5 by a pressure means such as a spring to print a bar code or the like on the tag paper 1. Note that the rotational force of the stepping motor 7 is transmitted to the platen 5 via a transmission mechanism including a timing belt or the like. Further, the platen 5 is provided with a transmission mechanism for transmitting the rotational force of the stepping motor to the feed roller 8, so that the platen 5 and the feed roller 8 are rotated synchronously by the stepping motor 7. .

As shown in FIG. 1, the sensor section 3 is composed of two light transmission type sensors 9a and 9b.

These light-transmissive sensors 9a and 9b are arranged facing each other on both sides of the tag paper 1, and the constricted portions 10 provided on both sides of the tag paper 1 serve as the sensors 9a.

When the light passes between the light emitting part 11 and the light receiving part 12 of 9b, it turns on. Note that one of the sensors 9a and 9b (for example, 9b) is movable in the width direction of the tag paper 1.

Further, the cutter section 4 is provided between the printing section 2 and the sensor section 3, and is configured to cut the tag paper 1 into a predetermined length by driving a rotary cutter 14 with a cutter motor 13. .

FIG. 4 is a perspective view showing the external appearance of the luggage tag printer.
7, and a paper discharge roller 18 is provided between the luggage tag outlet 17 and the sensor section 3, as shown in FIG.

The paper ejection roller 18 is driven by a paper ejection motor 19 via a transmission mechanism such as a gear, and the tag paper 1 cut into a predetermined length by the cutter section 4 is conveyed to the baggage tag outlet 17 by the paper ejection roller 18. It is now possible to do so.

Incidentally, a control block of the luggage tag printer configured as described above is shown in FIG.

FIG. 6 is a flowchart showing the operation of the luggage tag printer, in which the tag paper 1 that has passed through the printing section 2 passes through the cutter section 4 and is sent to the sensor section 3. Here, in the sensor section 3, as described above, the constrictions 10 provided on both sides of the tag paper 1 pass between the light emitting sections 11 and the light receiving sections 12 of the light transmission type sensors 9a and 9b. Detect the cutting position of 1. When the cutting position of the tag paper 1 is detected by the sensor section 3, the stepping motor 7 rotates in the reverse direction, and the constricted portion 10 of the tag paper 1 is returned to the position of the cutter section 4. After that, the cutter motor 13 is driven to rotate the rotary cutter 14 and cut the tag paper 1.
The constricted part 10 is cut.

When the cutting of the tag paper 1 is completed in this manner, the tag paper 1 cut into a predetermined length is conveyed to the luggage tag outlet 17 by the paper discharge roller 18, and is issued as a luggage tag. On the other hand, the unused tag paper 1 on which no barcode or the like is printed is returned to the printing section 2 and prepared for the next printing.

Therefore, in this embodiment, the sensor unit 3 for detecting the cutting position of the tag paper 1 is composed of two light transmission type sensors 9a and 9b, and these light transmission type sensors 9a and 9b are used to detect the cutting position of the tag paper 1.
Since they are arranged facing each other on both sides of the tag paper 1, the cutting position of the tag paper 1 can be reliably detected even if there is a punching error or punching waste on one side of the constricted portion 10 of the tag paper 1. Also,
In this embodiment, one of the light transmission type sensors 9a and 9b is movable in the width direction of the tag paper 1, so that it can be used for various tag papers having different paper widths.

In addition, although the case where this invention was applied to the luggage tag printer was demonstrated in the said Example, this invention is not limited to this.

[Effects of the Invention] As explained above, according to the present invention, the sensor unit that detects the cutting position of continuous paper such as tag paper is composed of two sensors, and these sensors are arranged on both sides of the paper. The cutting position of the paper can be reliably detected even if there is a punch error or bunching error on one of the crevices provided on both sides of the paper, and the paper that has passed through the printing section can be cut to a predetermined length. We can provide printers.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention, FIG. 1 is a perspective view showing the configuration of a sensor section, FIG. 2 is a schematic diagram of a luggage tag printer, and FIG. 3 is a plane view of tag paper. 4 is an external view of the luggage tag printer, FIG. 5 is a control block diagram of the luggage tag printer, and FIG. 6 is a flowchart showing the operation of the luggage tag printer. 1... Tag paper, 2... Printing section, 3... Sensor section,
4... Cutter section, 5... Platen, 6. Thermal head, 7... Stepping motor, 8 Feed roller, 9a, 9b... Light transmission type sensor, 10... Neck part, 11... - Light emitting section, 12... Light receiving section, 13.
...Cutter motor, 14...Rotary cutter 15
...Operation panel, 16...Power switch, 17...Balance tag outlet, 18...Sheet ejection roller, 19...
・Paper ejection motor. Applicant's representative Patent attorney Takehiko Suzue! s1 Figure 2

Claims (1)

[Claims] A printing section that prints image information on continuous paper, a sensor section that detects the cutting position of the paper that has passed through this printing section, and a cutter section that cuts the paper into a predetermined length based on the signal from this sensor section. A printer comprising: the sensor section having two sensors arranged on both sides of the paper.