JP2002361953A - Printer and recording paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer which can analyze causes of a paper transfer error of the printer on the basis of a sensor level value of a paper feed sensor without using a special measuring device such as an oscilloscope, and can quickly adopt accurate measures. SOLUTION: The sensor level value of the paper feed sensor when a recording paper is transferred by a printing mechanism part is obtained in time series. Any one of (1) printing out the sensor level value to a label paper, (2) printing out the sensor level value to the recording paper other than the label paper, and (3) transmitting the sensor level value to an external device such as a computer is carried out. When the cause of the paper transfer error of the printer is to be analyzed on the basis of the sensor level value of the paper feed sensor, the analysis is enabled without using the special measuring device such as the oscilloscope, so that accurate measures can be adopted quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a printer device such as a label printer for printing a bar code or the like on a label, and a recording sheet printed by the printer device.

[0002]

2. Description of the Related Art Conventionally, there are printer devices such as a label printer for printing a barcode or the like on a label and a receipt printer for printing merchandise transaction information on a receipt. Such a printer device often uses, for example, label paper or receipt paper wound in a roll shape.

[0003] In a printer device using such label paper or receipt paper wound in a roll shape,
A paper feed sensor is provided in the paper transport path, and the paper transport operation and the printing operation are controlled based on a detection signal from the paper transport sensor. In particular, in the label printer, since the labels are arranged at regular intervals on the backing paper, it is necessary to accurately carry the paper based on the detection signal from the paper feed sensor. Therefore, when an abnormality is recognized based on the detection signal from the paper feed sensor during the paper transport, an error process such as stopping the paper transport is executed.

When such error processing is performed, the user determines the cause of the error according to a predetermined procedure and releases the sheet conveyance error. However, there are cases where the cause of the error cannot be determined. In such a case, the user often makes a telephone call to, for example, a manufacturer or a service center to take a procedure for reporting an error situation.
Thereafter, a service person or the like goes to the site, investigates the cause of the error, and cancels the paper transport error.

[0005]

However, the information from the user at the time of error occurrence is very important, but is only subjective information by the user. The situation can be different. In such a case, even if you arrive at the site,
There was a problem that tools and parts for dealing with the failure were insufficient, and it was not possible to respond on the spot.

Further, when analyzing the cause of the paper transport error of the printer device based on the sensor level value of the paper feed sensor, the analysis is performed by waveform measurement using a dedicated measuring device such as an oscilloscope. You cannot get accurate information. In such a case, the serviceman must take back the printer device in which the paper transport error has occurred and check it, and the response is extremely slow.

It is an object of the present invention to analyze a cause of a paper transport error of a printer device based on a sensor level value of a paper feed sensor without using a dedicated measuring instrument such as an oscilloscope. Is to provide a printer device that can quickly adopt a printer device.

An object of the present invention is to analyze a cause of a paper transport error of a printer device based on a sensor level value of a paper feed sensor without using a dedicated measuring instrument such as an oscilloscope. The purpose of the present invention is to provide a recording sheet capable of quickly taking a recording sheet.

[0009]

According to a first aspect of the present invention, there is provided a printer device including a paper feed sensor provided in a recording paper transport path, and controlling a printing mechanism based on a detection signal from the paper feed sensor to control the printing paper. In a printer device that performs a conveyance operation and a printing operation, a sensor value acquisition unit that acquires a sensor level value of the paper feed sensor when the recording paper is conveyed by the printing mechanism unit in time series, and the sensor value acquisition unit And sensor level value notifying means for notifying the sensor level value of the paper feed sensor in the acquired time series.

Therefore, the sensor level values of the paper feed sensor when the recording paper is conveyed by the printing mechanism are acquired in time series and reported. This makes it possible to analyze the cause of the paper transport error of the printer device based on the sensor level value of the paper feed sensor without using a dedicated measuring device such as an oscilloscope. It can be taken.

According to a second aspect of the present invention, in the printer device of the first aspect, the sensor level value notifying means includes:
A graphing unit for converting the sensor level value of the paper feed sensor into graph data in a time series; and a paper transport operation and printing of the printing mechanism unit using the sensor level value of the paper feed sensor graphized by the graphing unit. First graph printing means for printing on the recording paper by operation.

Therefore, the sensor level value of the paper feed sensor is converted into graph data in a time series, and the graph data is printed on the recording paper by the paper transporting operation and the printing operation of the printing mechanism to be notified. This makes it possible to analyze the cause of a paper transport error in the printer by looking at the graph of the sensor level value of the paper feed sensor printed on the recording paper, without using a dedicated measuring device such as an oscilloscope, so that accurate on-site Responses can be taken promptly.

According to a third aspect of the present invention, in the printer device of the first aspect, the sensor level value notifying means includes:
A sensor level value storage unit for storing and holding the sensor level value of the paper feed sensor in a memory in a time series; and the sensor level value of the paper feed sensor stored and held in the memory by the sensor level value storage unit in a time series. Graphing means for converting the data into graph data, and a second graph for printing the sensor level value of the paper feed sensor, which has been converted into graph data by the graphing means, on a desired recording paper by a paper conveying operation and a printing operation of the printing mechanism. Printing means.

Therefore, the sensor level value of the paper feed sensor is stored and held in the memory in a time series, and the sensor level value of the paper feed sensor stored and held in the memory is converted into a graph data in a time series. The information is printed and printed on a desired recording sheet by the sheet transport operation and the printing operation. This makes it possible to analyze the cause of a paper transport error in the printer by looking at the graph of the sensor level value of the paper feed sensor printed on the recording paper, without using a dedicated measuring device such as an oscilloscope, so that accurate on-site Responses can be taken promptly. In addition, since the sensor level values of the paper feed sensor are temporarily stored in the memory in a time-series manner, even when printing on the backing paper of the recording paper or the like is impossible, printing is performed by using another recording paper. It becomes possible to do.

According to a fourth aspect of the present invention, in the printer device of the first aspect, the sensor level value notifying means includes:
A sensor level value storage means for storing and holding the sensor level value of the paper feed sensor in a memory in time series; and a communication interface for storing the sensor level value of the paper feed sensor stored and held in the memory by the sensor level value storage means. And information communication means for transmitting the information to an external device via the communication device.

Therefore, the sensor level values of the paper feed sensor are stored and held in the memory in a time series, and the sensor level value of the paper feed sensor stored and held in the memory is transmitted to the external device via the communication interface to be notified. . As a result, it is possible to analyze the cause of the paper transport error of the printer device even in a remote place, and it is possible to quickly take an appropriate response.

[0017] The invention according to claim 5 is the invention according to claims 1 to 4.
In the printer device described above, the sensor level value notifying means selectively executes any one of the sensor level value notifying means among the sensor level value notifying means according to claims 2 to 4.

Therefore, a desired sensor level value notifying means can be selected, so that it is possible to analyze the cause of the paper transport error of the printer by various methods.

The invention according to claim 6 is the invention according to claims 1 to 5
In the printer device according to any one of the above, when a plurality of the paper feed sensors exist, at least one or more desired paper feed sensors can be selected.

Therefore, it is possible to cope with various types of recording paper and the usability is improved.

In the recording paper according to the present invention, a paper feed sensor is provided in a paper transport path, and a printing mechanism is controlled based on a detection signal from the paper feed sensor to execute a paper transport operation and a print operation. A graph in which sensor level values of the paper feed sensor are plotted in time series when the recording mechanism is conveyed by the printing mechanism. And a printing operation.

Therefore, even if a dedicated measuring instrument such as an oscilloscope is not used, if the graph of the sensor level value of the paper feed sensor printed on the recording paper can be seen, the cause of the paper transport error of the printer can be analyzed. It is possible to take an appropriate response quickly.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. This embodiment is an example in which a label printer is applied as a printer device.

FIG. 1 is a vertical sectional side view schematically showing the label printer 1. Label printer 1 of the present embodiment
Is composed of a printer main body 3 having a printing mechanism unit 2 for executing a printing operation, and a paper holder 5 holding label paper 4 as recording paper to be sent to the printing mechanism unit 2 of the printer main body 3. ing. The printer body 3
A transport path 6 for guiding the label paper 4 sent from the paper holder 5 to a predetermined path is provided, and the printing mechanism 2 is provided in the transport path 6. The printing mechanism unit 2 includes a printing unit 9 including a platen 7 and a thermal head 8 that are arranged to face each other via a transport path 6, and a ribbon mechanism unit that guides and transports the ink ribbon 10 between the platen 7 and the thermal head 8. 11
And is constituted by. The thermal head 8 has a line type structure in which a number of heating elements (not shown) are arranged in a line in a direction orthogonal to the transport path 6 of the label paper 4. The paper holder 5 rotatably supports the label paper 4 wound and held in a roll shape.

FIG. 2 is a block diagram showing the electrical connection of each part built in the label printer 1. A CPU 12 for executing various arithmetic processes and controlling each unit intensively is provided, and a ROM 13 and a RAM 14 are connected to the CPU 12 via a bus line 15. ROM 13
A medium storing fixed data such as an operation program of the label printer 1 and a CPU according to the operation program.
12 controls each part. The RAM 14 is a memory for temporarily storing various variable data. RAM 14
Are used as various counter areas or as a drawing memory. In the drawing memory, data of an image to be printed on the label paper 4 is written based on a program and various data stored in the ROM 13.

A motor driver 18 for driving a stepping motor 16 serving as a drive source for the platen 7 and a DC motor 17 serving as a drive source for the ribbon mechanism unit 11 in the printing unit 9 are connected to the CPU 12 via a bus line 15. Have been.

A head control circuit 19a for driving the thermal head 8 and a disconnection check circuit 19b are also connected to the CPU 12 via the bus line 15. In addition,
The head control circuit 19a and the disconnection check circuit 19b
Connected to each other.

Although not shown in FIG. 1, the label printer 1 has a display 21 and keys 22 on its front panel 20, and a display controller 23 for driving the display 21 and an input for receiving signals from the keys 22. The controller 24 is also connected to the CPU 12 via the bus line 15. Further, the CPU 12
Are connected to an I / O port 26 for receiving signals from various sensors 25 and a communication interface 27 for connecting to an external device such as a computer.
And an A / D converter 28 for converting analog data into a digital value when the data is taken in.

Here, the various sensors 25 are, for example, paper feed sensors for detecting whether or not the label paper 4 is being properly sent to the printing unit 9. Such a paper feed sensor is a transmission sensor or a reflection sensor, and a plurality of paper feed sensors are provided according to the width of the recording paper and the application.

In such a label printer 1, a ROM
In accordance with the operation program stored in the CPU 13, the CPU 12 outputs drive control signals for each unit while using the RAM 14 as a work area, and thereby the paper transport operation and the printing operation are performed. That is, the thermal head 8 includes a shift register and a latch circuit (neither is shown), and print data temporarily stored in the RAM 14 and its history data are transferred to the shift register line by line. The print data and the history data are transferred from the shift register to the latch circuit in response to the input of the latch signal to the latch circuit, and the head drive signal corresponding to the print data and the history data output from the latch circuit is controlled by the head control. The heating elements of the thermal head 8 are selectively driven by inputting to the circuit 19a and the disconnection check circuit 19b, whereby the ink of the ink ribbon 10 is transferred to the label paper 4. The label paper 4 is conveyed to the platen 7 by controlling the driving of the stepping motor 16 in synchronization with the driving of the heating element, and the label paper 4 moves in the sub-scanning direction with respect to the thermal head 8. Thus, printing on the label paper 4 is performed. That is, by performing printing on the label paper 4 in the sub-scanning direction and the main scanning direction, printing on the label paper 4 according to the print data is performed.

Next, a description will be given of a function that the operation program stored in the ROM 13 causes the CPU 12 to execute.
Note that, in the present embodiment, processing that is the same as the processing performed by the conventional label printer and that is not related to the characteristic functions of the label printer 1 of the present embodiment will not be described. .

Here, a schematic flow of the sensor analysis processing performed by the label printer 1 will be described with reference to the flowchart of FIG. This sensor analysis process is executed when the label printer 1 is set to the system mode. Other processing executed when the system mode is set includes various parameter setting processing, test printing processing, sensor display / adjustment processing, RAM clear processing, LAN setting processing, head disconnection check processing, and the like.

As shown in FIG. 3, when the sensor analysis process is selected, the CPU 12 of the label printer 1 first executes a sensor selection process (step S1). Here, the sensor selection process includes a plurality of sensors (paper feed sensors) 25.
The desired sensor 25 for executing the sensor analysis processing is selected from the above. The predetermined sensor 25 may be selected, or may be selected each time via the key 22 or the like. In addition, a plurality of sensors 25 may be selected, or only one sensor 25 may be selected. As described above, when there are a plurality of sensors (paper feed sensors) 25, at least one or more desired sensors 25 can be selected, so that various types of recording paper can be handled, and usability can be improved. it can.

When one or a plurality of sensors 25 are selected, the process proceeds to step S2, where the output destination of the sensor level value output from the selected sensor 25 is determined. In the present embodiment, there are three types, namely, printing on label paper 4 and printing on recording paper other than label paper 4 and sending to an external device such as a computer. Here, the selection of the output destination is
For example, it may be predetermined in the ROM 13 or the RAM 14 or may be selected each time via the key 22 or the like.

If "print output on label paper 4" is selected (step S2), the process proceeds to step S3, where the label paper 4 is transported to detect the sensor level value, and the sensor level value is detected. Graph in time series,
Print on label paper 4. More specifically, label paper 4
If the sheet feed sensor (transmission sensor) for detecting whether or not the sheet is properly sent to the printing unit 9 is the selected sensor 25, the stepping motor 16 drives the label sheet 4 to convey the label sheet 4 in the sub-scanning direction. The sensor level value output from the sensor 25 is obtained according to the label paper 4 being conveyed (sensor value obtaining means). A / D conversion is performed on the acquired sensor level value to generate graph data which is print data plotted in time series (graphing means).
By selectively driving the heating elements of the thermal head 8 based on a head drive signal corresponding to the graph data, which is print data, a time-series graph of the sensor level values is printed on the label paper 4 (first graph). Printing means). The process of step S3 is continued until the stop key of the key 22 is operated.

When the stop key of the key 22 is operated (Y in step S4), the flow advances to step S5 to stop the sheet conveyance, stop the sheet detection by the sensor 25, and stop printing.

FIG. 4 is a plan view showing an example of the sensor level value printed and output on the label paper 4. As shown in FIG. As shown in FIG. 4, a graph G in which the sensor level values output from the sensor 25 are chronologically printed is printed on the mount 4A and the label 4L of the label paper 4. As shown in FIG. 4, when printing the graph G, the scale S is also printed. According to the graph G of the sensor level value printed and output on the label paper 4 in this manner, unlike the conventional case where the waveform is measured using a measuring instrument such as an oscilloscope, noise is not included. It is possible to grasp an accurate value.

Here, if the label paper 4 is appropriate, since the sensor 25 is a paper feed sensor (transmission sensor), the sensor level value between the labels 4L on the label paper 4 becomes the sensor level value of the label 4L portion. Compared with that, the higher the transmittance, the better. That is, the CPU 12 of the label printer 1 recognizes the position of the label 4L on the label paper 4 based on the sensor level value output from the sensor 25, and performs the paper transport operation and the printing operation based on the operation program stored in the ROM 13. Will run.

When the sensor 25 is dirty, when the sensitivity of the sensor 25 is not properly adjusted, or when unspecified label paper is used, as shown in FIG. In some cases, the difference between the sensor level value between the labels 4L on the paper 4 and the sensor level value of the label 4L portion becomes small. In such a case, the CPU 12 of the label printer 1 determines that the label paper 4 has not been properly transported, and executes error processing such as stopping the transport of the label paper 4.

When the size of the label 4L on the label paper 4 is larger than the predetermined standard, when the size of the label 4L on the label paper 4 is smaller than the predetermined standard, In the case where an outside label sheet is used, the label sheet 4 illustrated in FIG.
The print command differs from the interval between the labels 4L on the label paper 4 detected by the sensor 25, such as a sensor level value when the size of the upper label 4L is larger than a predetermined standard. Therefore, even in such a case, the CPU 12 of the label printer 1 executes an error process such as stopping the transport of the label paper 4.

Further, when the label paper 4 is pre-printed on the label 4L, as shown in FIG. 7, the sensor level value at the pre-print location X of the label 4L becomes small. Sometimes. In such a case, the CPU 1 of the label printer 1
No. 2 determines that an abnormality has occurred in the transport of the label paper 4 and executes error processing such as stopping the transport of the label paper 4.

When the label paper 4 is pre-printed on the label 4L, the operation mode may be switched from the automatic mode to the manual mode.

On the other hand, if "print output on recording paper other than label paper 4" is selected (step S2), the flow advances to step S6 to convey the label paper 4 and detect the sensor level value. Then, the sensor level value is stored in the RAM 14. More specifically, label paper 4
If the paper feed sensor (transmission sensor) that detects whether or not the label paper 4 is properly sent to the printing unit 9 is the selected sensor 25, the label paper 4 is transported in the sub-scanning direction by driving the stepping motor 16, and The sensor level value output from the sensor 25 is obtained according to the label paper 4 being conveyed (sensor value obtaining means). Then, the acquired sensor level value is A / D converted and stored in the RAM 14 (sensor level value storage means). The processing in step S6 is
The operation is continued until the stop key of the key 22 is operated.

When the stop key of the key 22 is operated (Y in step S7), the sheet conveyance is stopped and the sensor 2 is stopped.
5 is stopped (step S8), and the CPU 1
2 waits for the setting of a recording sheet different from the label sheet 4 (step S9).

When a recording sheet different from the label sheet 4 is set (Y in step S9), the sensor level values stored in the RAM 14 are graphed in time series (graphing means) and printed on the recording sheet (graphing means). Second graph printing means).

Here, the printing after setting the recording paper in place of the label paper 4 is performed by using the backing paper 4A of the label paper 4.
This corresponds to the case where printing by the thermal head 8 cannot be performed. The printed graph is not different from the one shown in FIG. 4 and the like, and the description is omitted.

If "Send to external device such as computer" is selected (step S2),
Proceeding to step S11, the label sheet 4 is transported to detect the sensor level value, and the sensor level value is set to R.
Store it in AM14. More specifically, when the sheet feed sensor (transmission sensor) for detecting whether or not the label sheet 4 is properly sent to the printing unit 9 is the selected sensor 25, the label sheet 4 is driven by the stepping motor 16.
Is transported in the sub-scanning direction, and a sensor level value output from the sensor 25 is acquired according to the transported label paper 4 (sensor value acquiring means). Then, the acquired sensor level value is A / D converted and stored in the RAM 14 (sensor level value storage means). The process of step S11 is continued until the stop key of the key 22 is operated.

When the stop key of the key 22 is operated (Y in step S12), the sheet conveyance is stopped, and the sheet detection by the sensor 25 is stopped (step S13).
U12 transmits the sensor level value stored in the RAM 14 to an external device such as a computer (step S1).
4: information communication means).

By transmitting the sensor level value stored in the RAM 14 to an external device such as a computer in this manner, the status of the label printer 1 can be grasped even in a remote place. Thus, when an error occurs in the label printer 1, the RAM of the label printer 1
It is possible to formulate a countermeasure based on the sensor level stored in the memory 14, and it is possible to take an appropriate countermeasure.

With such a configuration, the label printer 1
In the case where an error occurs in the conveyance of the label paper 4 in the above, the user of the label paper 4 is required to execute the above-described sensor analysis processing, and the sensor level values output from the sensor 25 are printed in time series. A countermeasure is devised with reference to it, or a countermeasure is devised with reference to the sensor level value output from the sensor 25 transmitted from the label printer 1.

For example, when “print output on label paper 4” is selected in step S2 and the graph G of the sensor level value as shown in FIG. 5 is printed,
Since the value difference between the sensor level value between the labels 4L on the label paper 4 and the sensor level value of the label 4L portion has become small, the service person or the like can determine whether the sensor 25 is dirty or the sensitivity of the sensor 25. It is possible to analyze factors such as whether the adjustment is not performed properly, whether label paper other than the specified one is used, and the like.

Here, the label paper 4 is printed by the printing mechanism 2.
The sensor level values of the sheet feed sensor 25 when the sheet is conveyed are acquired in time series and are notified. Thereby, when analyzing the cause of the paper transport error of the label printer 1 based on the sensor level value of the paper feed sensor 25, the analysis can be performed without using a dedicated measuring device such as an oscilloscope, so that an accurate response can be quickly taken. Can be taken.

Further, since a desired sensor level value notifying means can be selected, it is possible to analyze the cause of the sheet conveyance error of the label printer 1 by various methods.

[0054]

According to the printer device of the first aspect of the present invention, a paper feed sensor is provided in a recording paper transport path,
In a printer device that controls a printing mechanism based on a detection signal from the sheet feed sensor to execute a sheet conveying operation and a printing operation, a sensor level value of the sheet feeding sensor when the recording mechanism is conveyed by the printing mechanism. And a sensor value informing means for informing the sensor level value of the paper feed sensor in time series acquired by the sensor value acquiring means. When the cause of the paper transport error of the printer is analyzed based on the sensor level value of the paper feed sensor by acquiring and notifying the sensor level value of the paper feed sensor in the time series when conveying the paper, a dedicated measurement using an oscilloscope etc. Since the analysis can be performed without using a device, an appropriate response can be taken promptly.

According to a second aspect of the present invention, in the printer device according to the first aspect, the sensor level value notifying means includes a graphing means for converting the sensor level value of the paper feed sensor into graph data in time series. And a first graph printing means for printing the sensor level value of the paper feed sensor, which has been converted into graph data by the graphing means, onto the recording paper by a paper transporting operation and a printing operation of the printing mechanism. By converting the sensor level values into graph data in time series and printing the graph data on the recording paper by the paper transport operation and printing operation of the printing mechanism and notifying it, it is possible to record without using a dedicated measuring instrument such as an oscilloscope. If you look at the graph of the sensor level value of the paper feed sensor printed on the paper, Since the analysis can be, it is possible to take quickly the appropriate responses in the field.

According to a third aspect of the present invention, in the printer device according to the first aspect, the sensor level value notifying means stores the sensor level value of the sheet feed sensor in a memory in a time series in a memory. Storage means, graphing means for converting the sensor level values of the paper feed sensor stored in the memory by the sensor level value storing means into graph data in time series, and the graph data formed by the graphing means. Second graph printing means for printing the sensor level value of the paper feed sensor on desired recording paper by the paper transport operation and the printing operation of the printing mechanism unit, and storing the sensor level value of the paper feed sensor in a memory in a time-series manner. Hold, the sensor level value of the paper feed sensor stored in the memory is converted into graph data in time series, By printing the graph data on the desired recording paper by the paper transport operation and printing operation of the printing mechanism unit and notifying, the sensor level of the paper feed sensor printed on the recording paper without using a dedicated measuring instrument such as an oscilloscope By looking at the value graph, it is possible to analyze the cause of the paper transport error of the printer device, so that an appropriate response can be promptly taken on site. In addition, by temporarily storing the sensor level value of the sheet feed sensor in a memory in a time series, even when printing on a mount sheet or the like of a recording sheet is impossible, printing is performed by using another recording sheet. be able to.

According to a fourth aspect of the present invention, in the printer device according to the first aspect, the sensor level value notifying means stores the sensor level value of the paper feed sensor in a memory in a time series in a memory. Storage means, and information communication means for transmitting the sensor level value of the paper feed sensor stored and held in the memory by the sensor level value storage means to an external device via a communication interface, and The printer device stores the sensor level values in a memory in a time series and transmits the sensor level values of the sheet feed sensor stored and held in the memory to an external device via a communication interface to notify the printer device even in a remote place. Can analyze the cause of paper transport errors in Can.

According to a fifth aspect of the present invention, in the printer device of the first to fourth aspects, the sensor level value informing means is any one of the sensor level value informing means of the second to fourth aspects. By selectively executing one of the sensor level value notifying means, a desired sensor level value notifying means can be selected. Therefore, it is possible to analyze the cause of the paper transport error of the printer by various methods. it can.

According to a sixth aspect of the present invention, in the printer device according to any one of the first to fifth aspects, when a plurality of the paper feed sensors exist, at least one of the paper feed sensors is provided.
By making the above-mentioned desired paper feed sensor selectable, it is possible to cope with various types of recording paper and improve usability.

According to the recording paper of the invention described in claim 7,
A paper feed sensor is provided in the paper transport path, and the recording paper is printed and issued from a printer device that performs a paper transport operation and a print operation by controlling a printing mechanism based on a detection signal from the paper transport sensor. A graph in which a sensor level value of the paper feed sensor when the recording paper is transported by the printing mechanism is plotted in time series by the paper transporting operation and the printing operation of the printing mechanism, so that an oscilloscope or the like is used. Even without using a dedicated measuring device, the cause of the paper transport error of the printer can be analyzed by looking at the graph of the sensor level value of the paper feed sensor printed on the recording paper. be able to.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view schematically showing a label printer according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating an electrical connection of each unit built in the label printer.

FIG. 3 is a flowchart illustrating a schematic flow of a sensor analysis process.

FIG. 4 is a plan view showing an example of a sensor level value printed and output on a label sheet.

FIG. 5 is a plan view showing an example of a sensor level value printed and output on a label sheet.

FIG. 6 is a plan view showing an example of a sensor level value printed and output on a label sheet.

FIG. 7 is a plan view showing an example of a sensor level value printed and output on a label sheet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printer device 2 Printing mechanism part 4 Recording paper 6 Transport path 14 Memory 25 Paper feed sensor 27 Communication interface

Continued on the front page F term (reference) 2C058 AB16 AC06 AE04 AE14 GB04 GB05 GB21 GB29 GB52 2C060 BA01 BC02 BC12 BC72 2C061 AP10 AQ04 AS06 AS08 AS14 KK13 LL01 LL04 3F048 AA05 AB01 BA14 BA20 BC08 DA06 DB07 DB08 DC13

Claims (7)

[Claims] 1. A printer device comprising: a paper feed sensor provided in a recording paper transport path; and a paper transport operation and a print operation performed by controlling a print mechanism based on a detection signal from the paper feed sensor. A sensor value acquiring unit for acquiring a sensor level value of the paper feed sensor when the recording paper is conveyed by a unit in a time series; and a time series of the sensor level values of the paper feed sensor acquired by the sensor value acquiring unit. And a sensor level value notifying unit. 2. The sensor level value notifying means includes: a graphing means for converting the sensor level value of the paper feed sensor into graph data in a time series; and the sensor of the paper feed sensor converted into graph data by the graphing means. 2. The printer device according to claim 1, further comprising: first graph printing means for printing a level value on the recording paper by a paper transport operation and a printing operation of the printing mechanism. 3. The sensor level value notifying means includes a sensor level value storing means for storing and holding the sensor level values of the paper feed sensor in a memory in a time series, and the sensor level value notifying means being stored and held in the memory by the sensor level value storing means. Graphing means for converting the sensor level value of the paper feed sensor into graph data in a time series, and the sensor level value of the paper feed sensor graphized by the graphing means with the paper transport operation of the printing mechanism unit. 2. The printer device according to claim 1, further comprising second graph printing means for printing on desired recording paper by a printing operation. 4. The sensor level value notifying means includes a sensor level value storing means for storing the sensor level value of the paper feed sensor in a memory in a time series, and the sensor level value notifying means being stored and held in the memory by the sensor level value storing means. 2. The printer device according to claim 1, further comprising information communication means for transmitting the sensor level value of the paper feed sensor to an external device via a communication interface. 5. The sensor level value notifying means according to claim 2, wherein the sensor level value notifying means comprises:
5. The printer device according to claim 1, wherein one of said sensor level value notifying means is selectively executed. 6. The printer device according to claim 1, wherein when a plurality of paper feed sensors are present, at least one or more desired paper feed sensors can be selected. 7. A recording sheet printed and issued from a printer device which is provided with a sheet feed sensor in a sheet conveying path, controls a printing mechanism based on a detection signal from the sheet feed sensor, and executes a sheet conveying operation and a printing operation. A graph in which a sensor level value of the paper feed sensor when the recording paper is transported by the printing mechanism is plotted in a time series is printed by the paper transporting operation and the printing operation of the printing mechanism. Recording paper characterized by the following.