JPH0699639A - Printer device - Google Patents

Abstract

PURPOSE:To judge whether continuous-form paper is correctly set with respect to its top and rear surfaces in a printer device using continuous-form paper having a printable top surface and an unprintable rear surface. CONSTITUTION:A setting detection means for detecting the setting of continuous- form paper 61 on a paper holding part or a paper feed path is provided. A printing control means is provided for printing indexes 62, 63 on the leading end part of the continuous-form paper 61 detected to be set by the setting detection means by an information printing mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer device using continuous paper capable of printing on only one of the front and back sides.

[0002]

2. Description of the Related Art A printer apparatus used for printing receipts and journals in an electronic cash register is provided with a paper holding section for holding a continuous paper so that it can be fed, and the continuous paper held in the paper holding section is For example, a structure is provided in which a sheet conveying path that is sequentially conveyed is formed, and an information printing mechanism that prints an image is provided on the surface of the continuous paper that is sequentially conveyed in the sheet conveying path. Various types of printer devices have been put into practical use.
There is also a thermal type printer device that uses continuous paper that can be printed only on the surface coated with a color former and cannot be printed on the back surface.

[0003]

In the printer device as described above, the coloring agent is applied only to the front surface of the continuous paper on which the image information is printed, and the coloring agent is applied to the back surface on which the image information is not printed. Not running, the running cost of this continuous paper is reduced.

However, since it is difficult to visually determine the front and back surfaces of the continuous paper, the front and back surfaces of the continuous paper may be erroneously printed when the continuous paper is replenished. In such cases,
Since the user notices an error on the front and back surfaces of the continuous paper after starting the printing operation of the printer device, unreproducible image information may be lost, which is not preferable.

[0005]

A sheet holding unit for holding a continuous sheet whose front surface is printable and whose rear surface is unprintable is freely fed, and the paper sheet to which the continuous paper held in this paper holding section is conveyed. In a printer device provided with an information printing mechanism that forms a transport path and prints an image on the surface of the continuous paper transported in the paper transport path, at least one of the paper holding section and the paper transport path is provided with A set detection unit is provided for detecting that the continuous paper has been set, and a print control unit for printing an index by the information printing mechanism at the head of the continuous paper when the set detection unit detects setting of the continuous paper is provided. It was

[0006]

Since the index is automatically printed on the leading end of the newly set continuous paper, the presence or absence of this index can be checked visually or by an optical sensor to determine whether the front and back of the set continuous paper are correct. be able to.

[0007]

Embodiments of the present invention will be described with reference to the drawings.
First, in the electronic cash register 1 of the present embodiment, as shown in FIG.
As illustrated in FIG. 3, the receipt printer 2 and the journal printer 3, which are printer devices having substantially the same structure, are arranged at positions substantially parallel to each other in the left-right direction.

Therefore, the structures of these printers 2 and 3 will be described with reference to FIGS. First, in these printers 2 and 3, a pair of guide plates 5 communicating with a paper holding unit 4 formed of a hopper is fixedly attached to the main frame 6, and the paper conveyance formed by these guide plates 5 and the like is performed. The path 7 communicates with the information printing mechanism 8. Here, the information printing mechanism 8 includes a line head 10 mounted on a bracket 9 which is pivotally supported by the main frame 6 so as to be openable and closable.
And the line head 10 is attached to the guide plate 5
The structure is such that it is opposed to the platen roller 11 located above so as to freely come into contact with and separate from it.

In the receipt printer 2, the rotary cutter 1 is arranged in the paper conveying direction of the information printing mechanism 8.
2 is provided, and the rotary cutter 12 is not provided in the journal printer 3. On the other hand, in the journal printer 3, a writing table 13 and a take-up reel 14 which is a paper take-up mechanism are sequentially provided in the paper conveying direction of the information printing mechanism 8, and the take-up reel 14 and the writing table 13 are provided. Is not provided in the receipt printer 2.

Here, in this journal printer 3,
The writing table 13 has a support arm 15 which is a table support mechanism extending downward from both sides, and a support shaft 16 and a guide shaft 17 attached to the lower end and the center of the support arm 15, and the support shaft 16 at the lower end. The side frame 20 is formed with a shaft hole 18 for rotatably supporting the shaft and an arc-shaped long hole 19 for slidably guiding the guide shaft 17 in the central portion.

Further, in the printers 2 and 3, a paper transport path 21 communicating from the information printing mechanism 8 to the rotary cutter 12 and the writing table 13 is formed by a pair of guide plates 22 and 23 facing each other. There is. Here, these guide plates 22 and 23 are fixedly attached to the main frame 6 while the guide plate 22 located below is fixed, but the guide plate 23 located above is projectingly provided above the rear part thereof. The bearing portion 24 is rotatably connected to the bearing portion 25 formed on the bracket 9 by a rotation shaft 26. Further, in the receipt printer 2, a jam sensor 27 composed of a ready-made pressure switch or the like is attached to the front end portion of the bracket 9, and a detection terminal which is an elastically slidable positioning mechanism for the jam sensor 27. 28 presses the guide plate 23 from above and positions it.

Further, in the printers 2 and 3, a TOF (Top Of Form) sensor 2 is provided on the side of the jam sensor 27.
9 and a print detection sensor 30 are arranged in parallel, and a head open sensor 31 is provided on the upper surface of the line head 10 facing the bracket 9. In the printers 2 and 3, the BOF (B
ottom Of Form) sensor 32 is arranged and this BO
A rotation link 34, which faces the detection terminal 33 of the F sensor 32 so as to come into contact with and separate from the F sensor 32, projects above the guide plate 5 below.
The receipt printer 2 is provided with a stationary blade 35 and a movable blade 36 in the rotary cutter 12, and a home position sensor 37 is provided at a position facing the movable blade 36.

In the electronic cash register 1, as shown in FIG. 4 in appearance, a detachable printer in which the front left side of the upper surface of the main body housing 38 shields the printers 2 and 3 in a retractable manner. The cover 39 has a receipt issuing port 40 and a journal confirmation window 41 formed on the printer cover 39. Here, the electronic cash register 1 includes the main body housing 38.
A drawer 42 is integrally formed on the bottom of the, and a keyboard 43, a display 44, and the like are integrally provided on the upper surface thereof, and a touch scanner 45 and a handset 46 are held.

The electronic cash register 1
In terms of a circuit, as shown in FIG. 5, a main CPU (Central Processing) that performs processing operations on various information is performed.
Unit) 47 in which various information is fixedly stored in advance in a ROM
(Read Only Memory) 48, RAM (Random Access Memory) 49 for temporarily storing various kinds of information in an updatable manner, the printers 2, 3, the drawer 42, the keyboard 4
3, the display 44, the touch scanner 45,
It has a structure in which a mode switch 50, a clock circuit 51, a telephone circuit 52, a buzzer 53, etc. are connected.

Further, the printers 2 and 3 are shared by a single printer CP as shown in FIG.
U54 has a common ROM 55, a common RAM 56, a common character generator 57, and the main CPU 47.
A shared shared RAM 58 connected to each of the sensors, each of the sensors 29 to 32, each of the feed motors 59, each of the line heads 10 and the receipt printer 2 are connected with a dedicated cutter motor 60, the home position sensor 37, and the like. It has a structure.

In the printers 2 and 3 of the electronic cash register 1, the set detecting means for detecting the setting of the continuous paper 61 on the paper holding unit 4 and the paper conveying paths 7 and 21 has the sensors 29 and 32 and the like. When these sensors 29, 32 detect the setting of the continuous paper 61, the print control means for driving the information printing mechanism 8 to print the indexes 62, 63 on the leading end of the continuous paper 61. It is formed by the printer CPU 54 and the RAM 56. Image data for the indexes 62 and 63 is stored in advance in the RAM 56, and the indexes 62 and 63 are displayed here by a message for the clerk and the message as shown in FIG. Print detection sensor 30
And a line for optical detection in.

In the electronic cash register 1 having such a structure, when the business information is operated and input by the keyboard 43, the touch scanner 45, or the like, this is the main CP.
It is displayed on the display 44 after being edited by the U47, and further, it is displayed on the receipt printer 2 by the thermosensitive continuous paper 61.
Is printed on the continuous paper 61 by the journal printer 3 and stored as a journal.

Here, in the electronic cash register 1, a continuous paper 61 used as a receipt or a journal.
Since only the surface coated with the heat-sensitive agent can be printed freely and the back surface cannot be printed, if the front and back are mistaken when setting it, printing will not be possible. Therefore, in the electronic cash register 1, when the sensors 29, 32 and the like detect the setting of the continuous paper 61 with respect to the paper holding unit 4 and the paper conveying paths 7, 21, the printer CPU 54 reads out predetermined image data from the RAM 56 and outputs the information. The printing mechanism 8 prints the indexes 62 and 63 on the leading portion of the continuous paper 61.

In this way, in the electronic cash register 1, the indicators 62 and 63 are automatically printed on the leading end of the newly set continuous paper 61, so that the continuous paper protruding from the receipt issuing port 40 is printed. By visually confirming the presence or absence of the indexes 62 and 63 such as the leading end of 61 and the leading end of the continuous paper 61 located in the journal confirmation window 41, the correctness of the front and back of the set continuous paper 61 can be confirmed. Moreover, in the electronic cash register 1, the print detection sensor 30 optically detects the index 63 printed on the leading portion of the continuous paper 61. If the print detection sensor 30 does not detect the index 63 at a predetermined timing. The CPUs 47 and 54 are adapted to notify the warning by means of the buzzer 53, the display 44 and the like.

Therefore, the processing operation of the electronic cash register 1 including the above-described normal registration processing and the front / back confirmation of the continuous paper 61 will be described in detail below with reference to the flowchart of FIG. First, in the electronic cash register 1, since the printers 2 and 3 print the business information on the continuous paper 61 at the completion of the above-described normal registration processing, the CPU 47, 54 determines whether the continuous paper 61 is finished or not by the BOF. Monitoring is performed by the sensor 32 and the like, and when it is confirmed that the continuous paper 61 remains, the initial state is restored.

When the end of the continuous paper 61 is detected, this is notified by the display of the display 44 and the continuous paper 61 for the paper holding unit 4 and the paper conveying paths 7 and 21 is detected.
The presence or absence of the setting of the continuous paper 61 is monitored by the sensors 29 and 32, and when the setting of the continuous paper 61 is detected, the printer CP
The U 54 reads out predetermined image data from the RAM 56, and the information printing mechanism 8 displays the indexes 62, 6 on the leading portion of the continuous paper 61.
3 will be printed. Next, in the electronic cash register 1, the index 6 printed on the leading portion of the continuous paper 61 is printed.
The CPUs 47 and 54 monitor whether the print detection sensor 30 detects 3 at a predetermined timing. If this is detected, the initial state is restored. If not detected, the front and back of the continuous paper 61 are wrong. It is determined that Therefore, the CPU that detects an error in the front and back of the continuous paper 61
47 and 54 display a message such as "Please reset the paper again" on the display 44, and after that, the sensor indicates that the continuous paper 61 has been removed from the paper holding unit 4 and the paper transport paths 7 and 21. When detected by 29, 32, etc., the initial state of the processing operation for determining the front and back of the continuous paper 61 is restored.

In the printers 2 and 3 of the electronic cash register 1, the guide plate 23 is normally positioned by the pressing force of the detection terminal 28 of the jam sensor 27,
A paper transport path 21 reaching the rotary cutter 12 is formed. Here, in these printers 2 and 3, since the continuous paper 61 is cut by the rotary cutter 12 or stretched on the writing table 13 as described above, a jam occurs in the paper conveyance path 21 immediately before this. I have something to do.

In these printers 2 and 3, the continuous paper 61 having a jam in the paper transport path 21 is curved and presses the guide plate 23 upward. Therefore, when the pressing force exceeds a predetermined value, the guide paper 23 is guided. The plate 23 rotates upward against the elastic force of the detection terminal 28 of the jam sensor 27. In this case, since the detection terminal 28 that elastically positions the guide plate 23 is press-fitted into the jam sensor 27, if the detection output of the jam sensor 27 lasts longer than the preset specified time, the main CPU 47 Recognizes the occurrence of a jam and executes warning notification by the buzzer 53, the display 44, and the like, driving stop of the information printing mechanism 8, the rotary cutter 12, and the like.

Further, in the journal printer 3 of the electronic cash register 1, the continuous paper 61 is normally supported flat by the writing table 13 positioned below the paper transport path 7, so that the printer cover 3 can be used as desired.
By opening 9, it is possible to write on the continuous paper 61 on the writing table 13.

In the journal printer 3 of the electronic cash register 1, the writing table 13 is manually rotated upward when the continuous paper 61 is replaced or jammed. By doing so, since the writing table 13 is separated from the take-up reel 14 and the paper holding unit 4, the continuous paper 61 in the paper holding unit 4 can be easily set on the take-up reel 14. it can.

The continuous paper 61 set on the take-up reel 14 in this way passes over the standing writing table 13, but in the electronic cash register 1, the above-described state is obtained. When the continuous paper 61 is conveyed by, the writing table 13 rotates to automatically return to the normal position. Moreover, in this journal printer 3, the writing table 13
Is rotatably supported by the lower end of a supporting arm 15 projecting downward, so that the writing table 13 is taken up by the take-up reel 14.
Even if it is moved away from the vicinity of the above, it does not project upward and the occupied volume during operation is reduced, and operability is good.

Further, in this electronic cash register 1, since two printers 2 and 3 which are elongated in the front-rear direction are arranged in parallel in the left-right direction, the space occupied by these printers is in both the front-rear direction and the left-right direction. It won't be too big.
Therefore, the main body housing 38 containing the printers 2 and 3 does not become excessively large in a specific direction, and a beautiful shape can be realized. Further, in this electronic cash register 1, since the receipt to be issued is automatically cut by the rotary cutter 12, the cut end is beautiful and the appearance is good, and the work load is reduced.

[0028]

As described above, the present invention is provided with a paper holding section for holding the continuous paper whose front surface is printable and whose back surface is not printable so that it can be fed. In a printer device provided with an information printing mechanism that forms a paper transporting path to be transported and prints an image on the surface of the continuous paper transported in the paper transporting path, the paper holding section and the paper transporting path are provided. A print is provided on at least one of the set detection means for detecting that the continuous paper has been set. When the set detection means detects the setting of the continuous paper, the information printing mechanism prints an index on the leading end of the continuous paper. By providing the control means, the index is automatically printed at the beginning of the newly set continuous paper.By checking the presence or absence of this index visually or with an optical sensor, the front and back of the set continuous paper can be checked. Those having an effect such as can be determined correctness.

[Brief description of drawings]

FIG. 1 is a front view of a receipt showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a receipt printer and a journal printer.

FIG. 3 is a vertical side view showing a receipt printer.

FIG. 4 is a perspective view showing an electronic cash register.

FIG. 5 is a block diagram.

FIG. 6 is a block diagram showing a receipt printer and a journal printer.

FIG. 7 is a flowchart showing a processing operation of an electronic cash register.

[Explanation of symbols]

 2, 3 Printer device 4 Paper holding unit 7, 21 Paper transport path 8 Information printing mechanism 29, 32 Set detection means 54, 56 Print control means

Claims (1)

[Claims] 1. A paper holding portion for holding a continuous paper which can be printed on the front surface and non-printable on the back surface so as to be fed, and forms a paper conveyance path for conveying the continuous paper held in the paper holding portion. Then, in a printer device provided with an information printing mechanism for printing an image on the surface of the continuous paper transported in the paper transport path, the continuous paper is set in at least one of the paper holding section and the paper transport path. And a print control means for printing an index by the information printing mechanism on the leading end of the continuous paper when the set detection means detects setting of the continuous paper. Printer device.