JP2002230645A - Receipt printing device and receipt issuing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printing device issuing a rolled receipt having various sizes of advertisement information printed thereon beforehand by cutting it for every end of the advertisement information without breaking the information in the midway. SOLUTION: This receipt printing device prints the sales information on the opposite surface of the advertisement printing surface of the rolled sheet having the advertisement information continuously printed thereon at arbitrary length and issues it as the receipt. This printer is provided with a sheet carrier device letting out and carrying the rolled sheet, a printer printing the sales information on the carried sheet, a recognition means recognizing the advertisement information completion position on the advertisement information printed surface by the completion of the sales information printing on the carried roller sheet, and a cutting device cutting the rolled sheet at the completion position of the advertisement information recognized by the recognition means after completing the printing by the printer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receipt printing device in a cash register or a POS terminal device that issues a receipt using a roll sheet on which information such as advertisements of various lengths is printed on the back surface in advance. .

[0002]

2. Description of the Related Art In a receipt printing apparatus such as a cash register or a POS terminal used in a retail store, a gas station, or the like, a service such as sales information and store information is provided on one side (front side) of a roll sheet. The information is printed in characters and graphics and issued as a receipt. In this case, the receipt is printed on a roll sheet conveyed by the roll sheet conveying device, and is issued by the cutting device cutting at the printing end position.

In recent years, it has been practiced to print an advertisement or the like in advance on the printed back side of a roll sheet so that the back side of the issued receipt is effectively used as an advertising medium. In this case, simply printing the advertisement etc. on the back side,
The advertisement may be interrupted on the way depending on the length of the print of the sales information or the like printed on the front side, and the function as the advertisement medium may be damaged or the advertisement function may not be able to be exhibited at all. Therefore, the advertisement is printed on the back surface of the roll sheet at a recognition pitch, and the cut position of the roll sheet is performed at an integral multiple of the advertisement pitch, so that the back advertisement is not interrupted in the middle. Alternatively, the printing pitch of an advertisement or the like is set to a length equal to or less than half the minimum issue length of a receipt, and no matter how long the paper is cut, one advertisement or the like is always cut off. It is also done to get in. Further, a method of determining a cut position by detecting a recognition mark indicating a pitch of an advertisement provided in advance is also performed.

[0004]

According to the above-described method in which advertisement information or the like is printed at the recognition pitch on the back surface of the roll sheet and the paper is cut at an integral multiple of that, so that the back advertisement is not cut off halfway, The print range (size) is limited, and the advertisements that can be printed are also limited. Further, in the above-described method of setting the print pitch of an advertisement or the like to be equal to or less than half the minimum issue length of a receipt, only a limited small advertisement can be placed. Further, in the method of determining a cut position by detecting a recognition mark indicating the length of an advertisement provided in advance, it is necessary to print the recognition mark at a predetermined position of the advertisement without fail, and an extra mark is printed on the printing surface of the advertisement or the like. The mark may appear and the advertising effect may be impaired. In addition, a reading error may occur depending on the size of the mark, printing error, dust, dirt, and the like.

That is, a conventional roll sheet on which an advertisement or the like is printed in advance and a device that cuts the roll sheet and issues a receipt cannot satisfy a sufficient advertisement function.

According to the present invention, it is possible to place advertisement information of various sizes on the back surface of a receipt to be issued, and by performing accurate control of a cutting portion of a roll sheet, information may be interrupted on the way. It is an object of the present invention to provide a printing device that issues a receipt having no advertising function.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method for printing sales information on the opposite side of the advertisement information printing surface of a roll sheet on which information is continuously printed at an arbitrary length. A receipt printing device that issues this as a receipt, a sheet conveying device that feeds out and conveys the roll sheet, a printing device that prints the sales information on the conveyed sheet, Recognition means for recognizing an advertisement information end position on the advertisement information printing surface of the roll sheet conveyed upon completion of printing, and a cut for determining a cut position of the roll sheet from the recognized end position of the advertisement information to perform cutting And a receipt printing apparatus.

The recognition means for recognizing the advertisement information end position is an optical sensor, and the recognition by the optical sensor is performed by detecting the density level of a predetermined number of continuous dots (pixels). It is.

Further, in the recognition, when the number of dots (pixels) whose density level has changed returns to the original value below a predetermined number, it is regarded as noise and processed as if the original value was maintained. It is formed as follows.

Therefore, the advertisement information end position is recognized by detecting a space between the advertisement information print and the next advertisement information print. The shortest length of the space between the advertisement information printing is specified. The recognition of the advertisement information end position is performed when the recognition of the advertisement information position on the back side is a space when the sales information printing is completed, or when the space is detected by moving up until the space is detected, the position recognition processing is performed. It is configured to:

[0011] The advertisement information end position may be recognized by a timing mark printed on one of the left and right sides of the advertisement information print section. The advertisement information end position may be recognized by detecting a timing mark printed in the advertisement information print column and a space in the advertisement information print column, and cut control may be performed.

Further, the present invention is a method for printing sales information on a surface opposite to the advertisement information printing surface of a roll sheet on which advertisement information is continuously printed at an arbitrary length, and issuing the sales information as a receipt. A step in which the roll sheet is fed out and conveyed by a sheet conveying apparatus, a step of printing the sales information on a conveyed sheet by a printing device, and the step of printing the sales information, the advertisement of the roll sheet being conveyed. A step of recognizing the end position of the advertisement information on the information printing surface by a recognition unit; and a step of cutting the roll sheet by a cutting device based on the end information of the advertisement information recognized by the recognition unit. This is a receipt issuing method.

In the step of performing the cut, a cut position recognition process is performed based on the position at which the end of the reading of the advertisement information is recognized and the raising speed, and the cut device is driven based on the recognition information of the cut position to perform the cut. ing.

In the case of a roll sheet according to the method of recognizing a space according to the present invention, it is sufficient that the separation between the advertisement information and the advertisement information in the printing of the back side advertisement information is a space of a certain distance or more. Therefore, it is not necessary to print a special mark or the like for recognizing the advertisement information, and the printing is simple. Further, it is possible to provide advertisement information having an advertisement function at an arbitrary size, and to cut and publish advertisement information at each break of the advertisement information without interruption.

The type of equipment used in the receipt printing apparatus of the present invention is not limited as long as the equipment requires a function of issuing a receipt. For example, a cash register, a POS terminal (GA
SPOS terminals), vending machines, vending machines, A
It can be used by connecting to a TM or the like.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following embodiment, a receipt printed by a cash register will be described as an example.

FIGS. 1A and 1B are views showing an embodiment of the present invention. FIG. 1A is a side view of a printing area, and FIG. 1B is a perspective view thereof. The configuration shown here schematically shows only the area (printing area) where printing is performed on the roll sheet and the sheet is discharged from the cash register, and other parts are not shown. Is publicly known, and its configuration is omitted.

The roll sheet 1 stored in the storage section is fed out along a sheet guide path, and is conveyed to a portion of the printing device 3 provided downstream thereof. The printing device 3 includes a feed roller 3a and a thermal transfer type thermal head 3b disposed opposite to the feed roller 3a (line thermal type). Of course, other than this, a printing apparatus such as an ink jet system or a dot impact system may be used, and the printing apparatus is not limited to the recognition system.

A cutting device 5 having a cutter assembly 5a and a cutter receiver 5b is disposed downstream of the printing device 3. The cutting device 5 can be used to place a printed sheet at a predetermined position (advertisement information end). Position), and the cut paper is ejected out of the cash register as a receipt.
One of the cutters is supported and fixed so as to rotate, and the blade of the cutter rotates toward the cutter receiver about the support fixed point by the rotation of the support shaft by the driving device to cut the paper. As the structure of the cutter, a disk-shaped rotating cutter may be used.

In cutting the paper, an optical sensor 7 is arranged upstream of the printing device 3 and constantly scans the advertisement information on the back side of the roll sheet to recognize the end of the printing surface of the advertisement information at the present position. Then, the space between the next advertisement is read, and the paper is cut at the position where the cut device 5 recognizes the cut due to the end of the information.

In addition to the above-described configuration, an electro-stamp 9 is disposed between the storage unit for storing the roll sheet 1 and the printing device 3 so that a predetermined message is stamp-printed on a head portion of a discharged receipt. May be configured. Alternatively, a journal printer for recording sales information on another roll sheet may be provided. Although not shown, the printing apparatus is provided with a transport device that transports the fed roll sheet, various drive mechanisms, a drive source, and the like.

The advance of the roll sheet is configured such that the payout width is set according to the size of the characters to be input and printed for the sales information, and the advance is performed for each line. Furthermore, when the paper is simply fed or when the back side advertisement information 41
The lifting speed at which the sensor reads the back surface to determine the final position is also controlled.

Next, an example of the configuration of the roll sheet 1 used in the above-described cash register will be described with reference to FIG.

As shown in FIG. 2, on the front side of the roll sheet, as shown in FIG. 2A, the sales information A that has been sold is printed, and at the same time, a greeting and service information are also printed. As shown in (b), the advertisement information 41 and the like are continuously and continuously printed in an arbitrary size on the back side of the roll sheet. In the printing of the advertisement information 41 of any size, such as the advertisement information 41, the space 40 between the printed advertisement information 41 and the advertisement information 41 is a certain distance or more. As the length of this space, a shortest length and a longest length are determined in advance, and a space of any length may be provided as long as the length is within the range.

In this case, the maximum length of the space may be set to be shorter than the shortest length of the issued receipt (for example, the length of the receipt issued when only one product is purchased). With this setting, the advertisement information 41 is printed even with the shortest receipt.

As means for recognizing the space 40 between the printed advertisement information 41 and the advertisement information 41 as described above, an optical sensor as shown in FIG. 1 can be used.

The image sensor means constituting the optical reading apparatus according to the present embodiment includes a light source for irradiating a bar code or the like with light, a mirror means and a lens means for refracting and condensing the reflected light, and a reflection means. There are an optical reduction type provided with an optical sensor means for converting light into an electric signal, and a contact image sensor (hereinafter referred to as "CIS") which is an optical line sensor in which these are compactly integrated. In the present invention, it is applicable in principle to an image reading apparatus using any of the above-mentioned types of image sensors. However, in the present embodiment, the shape is small and the structure is relatively simple. A description will be given based on an example using a simple CIS.

Here, the thermal transfer printer head of the printing device 3 is configured such that the pins in which the print character images sent from the printer controller are arranged in a predetermined width thermally transfer ink to the roll sheet 1 in the form of dots and print. Have been. The number of pins having a predetermined width for discharging ink is determined by a required dot density.

In the present invention, the receipt is issued as follows. The sold product is entered and the data is printed on the receipt, but the printed receipt is
When the input is completed, an end process for calculating the total amount, change, and the like is performed. At the same time, the sensor that detects the back side determines whether the current side is a position where information such as an advertisement is printed, and if the current position is a printed position, up to a position of the space 40 where information such as an advertisement is not printed. Continue detection and advance the paper. When the space is recognized, the roll sheet is cut and fed out of the cash register. The final position where the space 40, which is the end of the advertisement information, is recognized and the roll sheet 1 is cut is calculated and determined based on the transport speed of the roll sheet and the time at which the space is detected.

In this way, the advertisement information 41 printed on the back side of the roll sheet 1 is not cut off in order to recognize the information break in the space 40 between the advertisement information printing and issue the receipt. .

For this reason, in order to prevent erroneous recognition of the space 40 separating the advertisements on the printing surface of the advertisement information 41, it is necessary that a predetermined number or more of lines detected by the sensor are not spaces. In the print example of the advertisement information 41 in the present embodiment, the ground on the print surface of the advertisement information 41 is colored. In the present embodiment, an example in which the ground is colored has been described, but the ground may be mesh printing or the like. In order to recognize the space 40, the density level of the advertisement surface should be higher than the density level of the space 40.

Here, a method of detecting the space 40 for recognizing the end of the advertisement information 41 according to the present invention will be described with reference to FIGS.

FIG. 3A shows the scanning direction of the advertisement information 41 on the back side of the roll sheet, and FIG. 3B shows the state of the back side of the roll sheet read by the sensor, including the image data and the threshold value 42. FIG.

FIG. 4 is an enlarged view of the section "P4" of the space element shown in FIG. 3B.

As described above, in the present embodiment, the sensor 7 uses CIS. The CIS detects the advertisement information surface on the back side of the roll sheet and recognizes whether the advertisement information is printed or the space 40 in the interval.
The density level becomes higher as the color approaches black. Thus, any printed portion will typically exhibit a high density level, and the unprinted space 40 will exhibit a low density level (white).

Accordingly, it can be recognized that any printing whose density level is higher than the predetermined threshold value 42 set in the white density level area has been printed. Therefore, in the present invention, the minimum number of consecutive pixels having the same density level is set as a determination criterion in order to determine a change in density level based on the length of a space or the like. If the reading level value of the predetermined number of image element pixels continuously changes by a predetermined number of pixels from the predetermined value (threshold value 42), it is determined that the density level has changed.

This means that if the density level continuously changes from the area higher than the white density level (from the advertisement print surface) to the white level by a predetermined number, the advertisement information 41 indicates the space 4
It means that it became 0. Thereafter, the space 40 is determined to be the space 40 until there is a change in the density level. The case where the space 40 is changed to the advertisement information 41 is the same as described above.

However, if there is dust, dirt, defects or the like in the above-mentioned space, it must not be recognized in the same manner as in printing. Therefore, in the present invention, dust and dirt,
The defect is configured to be determined and processed as noise.

The principle of the method of detecting noise performed by the above-described CIS line sensor in the present invention is as follows.

For example, the advertisement information 41 and the next advertisement information 41
If the space 40 is set to 8 mm, 188 dots of white will continue when the CIS reading density is 600 dpi. If the dirt is 3 mm, there are 70 dots.
Therefore, when the changed density level continues for 70 dots and returns to the original density level, this is regarded as noise and processed to improve the reading accuracy.

According to this example, when a margin is formed in the advertisement information column on the back side of the receipt in the longitudinal direction, if the margin line on the print surface in the advertisement information column is 3 mm, the margin line is ignored. Is determined to be not the space 40 but the area of the advertisement information 41. Therefore, there may be a margin in the advertisement information column if it is 3 mm or less. Note that the margin other than the read line area of the image sensor is not limited to the margin of 3 mm or less.

According to the present invention, in consideration of the read pixel density of the image sensor and the minimum number of pixels for reading the finest element constituting the space 40, when the read image data less than a predetermined number of continuous pixels is generated. In this method, the reading accuracy is improved by treating this as noise.

As described above, even if the image is the finest image element, data of the same level (white or non-white) is read continuously for several dots. As shown in FIG. 3A, the advertisement information 41 on the back of the roll sheet and the advertisement information 41
The space 40 between them is displayed. When this image element is read by the image sensor in the scanning direction X indicated by the arrow in the figure, it is read as the analog image data of (b). From section “P1” to section “P
"5" indicates an image element of the image to be read and corresponding analog image data read. Normally, when a black image element is read, high-level (black level) data follows, and when the image element changes to white, low-level (white level) data follows.

However, when there is a space in the printing, when the reading device generates noise, or when the density level of the image element changes due to dirt or dust, the image sensor reads it and converts it into image data. Changes occur. In the example shown in FIG. 3B, a short waveform that changes from a continuous level value and exceeds the threshold value in the section “P2” and the section “P4” is shown.

FIG. 4 is an enlarged view of the section “P4” of the image element shown in FIG.

The vertical axis of the figure indicates the density level, and the horizontal axis indicates the number of pixel numbers. In this figure, it is shown that the density level has risen beyond the threshold value in the pixel number S8 and the pixel number S9 in the section “P4”.

In this section "P4", the pixel number S
The pixel number S2 from 1 is still black because its density level does not exceed the black level threshold. From pixel number S2 to pixel number S3, since the density level exceeds the black threshold value and does not reach the white level threshold value, it is determined that black to white is being changed. From this point, the check of the density level is started. Pixel number S4 is at the white level and pixel number S4
, The pixel number S5 is at the same level. Pixel numbers S5 to S7 are white at the same level. Pixel number S7
, The pixel number S8 is determined to be changing, and the pixel numbers S8 to S9 are determined to be exceeding the white threshold and changing to black. It is determined that the pixel numbers S9 to S10 are changing from black to white.

Then, the original white level is restored at the pixel number S10. Therefore, pixel numbers S8 to S1
Although it has changed to 0, since the change is equal to or less than a predetermined pixel, it is determined as noise. The pixel number S10 to the pixel number S11 are determined to be the same level and the check of the density level is started. Since the pixel numbers S10 to S15 are at the same level, it is determined to be white. Since the pixel numbers S15 to S17 have exceeded the white level threshold and have not reached the black level threshold, it is determined that the pixel numbers are changing. In step S18, since the threshold value of the black level has been reached beyond the threshold value of the white level, it is determined that the color has changed to black. In this manner, the process of determining that the section “P4” is white including noise is performed.

The white density level check has been described above, but the check of the white or higher density level is performed in the same manner. Then, similarly, in the determination of the density level of white or more (detection of the advertisement information), the correct determination with the noise removed is performed.

In this way, the area where the advertisement is printed and the area of the space 40 where the advertisement is not determined are determined, and the end position of the information can be known.

FIG. 5 shows the advertisement information 41 print column and the advertisement information 41.
FIG. 4 is a diagram illustrating an example of a control block that controls the entire printing apparatus including a sensor for detecting a space 40 between the printing section and a printing section.

The control of the printing operation of the printing device 3, the control of the conveyance of the roll sheet 1, the recognition of the end position of the series of advertisement information 41 pre-printed on the roll sheet 1, the control of the drive timing of the cutting device, etc. Is performed by the CPU 10. The CPU 10 is connected to a ROM 11 in which a calculation program, constant data, and the like are recorded, and a RAM 12, which temporarily records various information.

A receipt printer 18 for printing on a roll sheet is connected to the CPU 10.
The receipt printer includes a printer controller 20 connected to the interface 15. The printer controller 20 includes a head controller 21 for operating the head 3 b of the printing device 3, the electrostamp 9, and a sheet transport for transporting a sheet. Each of the device 23 and the cutting device 7 is connected, and controls each device. When a journal print is provided in the printing apparatus, it is controlled by the printer controller 20.

The CPU 10 also has an input device 30 for inputting necessary information by a key operation or a bar code scanner or the like via the interface 15, a display device 31 for displaying calculation results and the like, and a printing device for printing on the roll sheet. A sensor 7 for detecting a space at an interval of the advertisement information or the like is connected.

In the printing apparatus configured as described above, the control process of cutting the sheet at the end position of the information printed on the back surface while printing the sales information on the conveyed roll sheet is shown in FIGS. Explanation will be given based on FIG.

FIG. 6 is a flowchart showing an example of a control process of printing the sales information on the conveyed roll sheet, detecting the advertisement information 41 printed on the back surface, and cutting the sheet at the end position.

The sales of goods are input and the data is printed on the receipt. When the input is completed, the end processing for calculating the total amount, change, and the like is performed. At the same time as recognizing the end of printing of the input sales information (S1), the sensor 7 on the back side
It is determined whether the current advertisement information surface is the position where the information such as the advertisement is printed (S2). If the advertisement information 41 is the position where the information is printed, the position of the space where the print surface of the information such as the advertisement ends. The detection of the back surface of the roll sheet is continued while the paper is advanced up to (S3). Then, a space is detected (S4).
Then, the end of the advertisement information is recognized, and the information is transmitted to the CPU 10 via the interface 15. The CPU 10 determines a cutting position from the information, transmits the information to the controller 20, and the controller 20 drives the cutting device 5 to cut the roll sheet (S5), and a receipt is issued.

As another embodiment of the present invention, a timing mark (line) 45 corresponding to the advertisement information 41 is provided on one of the right and left sides of the advertisement information 41 in order to recognize a break between the advertisement information 41. The start and end of the advertisement information may be recognized by detecting the timing mark 45 (line) provided.

FIG. 7 is a diagram showing an example of the advertisement information 41 on which a linear timing mark 45 for detecting the end of the advertisement information 41 is printed as another embodiment of the present invention.
(A) is an example in which the timing mark 45 is printed on one of the left and right sides in the print of the advertisement.

In this embodiment, a timing mark 45 indicating the range of the advertisement is provided on one side on the right side of the advertisement information 41.
(Line) is printed in advance. In this case, the advertisement information 41
The sensor 7 is placed on the side of the printed timing mark 45 (line) in order to recognize the end of the operation. The sensor scans the position where the timing mark 45 (line) is printed. After the detected density level equal to or higher than the predetermined reference level continues for an arbitrary number of pixels, if a lower density level is detected continuously for an arbitrary number of pixels or more, it is determined that the density level has changed, Advertising information 4
It is determined that 1 is a space 40 meaning an end interval. The same applies when changing from the space 40 to the advertisement information printing unit. This recognition method can be performed in the same manner as described above. Then, the end position of the advertisement information 41 can be known.

In the case of this embodiment, the scanning process is the same, and it corresponds to a defect or dust on a line, a blur of printing, and the like. Become.

Therefore, in this case, there is no restriction on the margin of the printing surface in the advertisement information section, and any margin may be provided. In this case, the reading sensor CIS is:
What is necessary is just to be able to detect a line of a predetermined width.

In (b), the timing mark 4
5 shows an example in which 5 (line) is printed on the roll sheet outside the advertisement print column. In this case, the advertisement information column is not restricted by the timing mark 45 and the advertisement can be printed in the entire frame of the advertisement information column, so that the advertisement effect is improved. The recognition method and the processing in this case are the same as in (a) described above.

In the above cases (a) and (b), the lengths of the advertisement information section and the timing mark 45 do not necessarily have to be the same. Timing mark 45
When the end of the roll sheet is detected, the roll sheet may be fed out by a preset length and then cut.

In (c), a timing mark 45 is provided in the space 40 between the advertisement information 41 and the advertisement information 41.
An example in which (lines) are printed is shown. After recognizing the end of the sales information 41, a process of detecting the timing mark 45 is performed to recognize the end position. First, as described above, the space 40 is detected. When a predetermined number of pixels having a density level equal to or higher than a predetermined density that has changed from the density level of the space 40 are detected in succession, it is recognized that the density level has changed. , The timing mark 45 has been recognized. When the timing mark 45 is detected in the space, it is determined as a cut position, and cut is performed at the position by the cut control. Also in this case, the advertisement information 41 column is not restricted by the timing mark, and the advertisement can be printed in the entire frame of the advertisement column, so that the advertisement effect is improved. The recognition method and the processing in this case are the same as described above.

In (d), the timing mark 45
An example in which (lines) are printed on the lower frame side of the advertisement information 41 column is shown. In this case, the end of the advertisement information 41 column can be detected by the timing mark 45 to recognize the cut position. The recognition method and the processing in this case are the same as described above. (E) shows an example in which a short timing mark 46 (line) is printed on the lower side of the advertisement information 41 column. Although it is printed on the lower left side in the example, it may be printed on the lower right side. Thus, the timing mark 45 does not have to be the same length as each side. In this case, the sensor may be any sensor that can read a predetermined length corresponding to the short timing mark 45. The recognition method and the processing in this case are the same as described above.

Here, another embodiment for recognizing the advertisement information 41 and the space 40 will be described.

(A) (b) (c) (d) (e)
The color of the timing mark 45 described in the above may not necessarily be black. It suffices if there is a density level difference that can be reliably determined by comparing with the density level of the space 40.

Further, it is also possible to print a discriminating mark or the like with special ink on the advertisement information surface or space 40 and to perform recognition by a special ink recognition method instead of the timing mark 45 in (a) to (e). in this case,
It is also possible to adopt a method in which a sensor for recognizing the advertisement information 41 or the space 40 is provided by detecting the reflected light by reflecting, for example, ultraviolet rays on the ink, and recognizing the advertisement information 41 or the space 40. In addition, by printing a mark or the like with magnetic ink or ink mixed with a material having a metal reaction, the end of the printed surface can be recognized by a sensor for detecting the material in the same manner as described above. When these materials are used, the ink used in place of the timing mark 45 does not need to have a color, and a transparent ink can be used. This means that the advertisement information 41
The timing mark 45 can be printed at any place in any part of the space. There are no restrictions on the advertising printing surface. Further, if the advertisement information 41 is printed with special ink, it can be a countermeasure for preventing forgery when the advertisement information 41 is used for a coupon or a cash voucher.

If the sales information printing space on the front side is vacant below the back end advertisement information 41 end position, other service information may be printed. For example, you can print out a guide saying "Coupon is on the back."
The service information guide such as “XX coupon is on the back side” may be printed in conjunction with the bar code on the front side.

As described above, when the receipt printing apparatus prints the sales information, the sensor always recognizes the printing of the advertisement information 41 printed on the back side, and prints the sheet at the end position of the advertisement information 41. In order to cut, a roll-shaped receipt on which advertisement information of various sizes is printed in advance can be cut and issued at each break of the advertisement information 41 without interruption of information, so that advertisement information of any size can be posted. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of the present invention,
(A) is a side view of a printing area portion, and (b) is a perspective view thereof.

FIGS. 2A and 2B show the configuration of a roll sheet used in the printing apparatus of the present invention, wherein FIG.
Shows an example of the back side advertisement information printing side.

FIG. 3 shows an embodiment of the present invention.
FIG. 4B is a related diagram showing a scanning direction of an example of the advertisement information on the back surface of the roll sheet, and FIG.

FIG. 4 is an enlarged view of a section “P4” of the image element shown in FIG.

FIG. 5 illustrates an example of a control block that performs overall control of the printing apparatus.

FIG. 6 is a flowchart illustrating an example of a control process of detecting advertisement information printed on the back surface and cutting the sheet at an end position while printing sales information on a conveyed roll sheet.

FIG. 7 is a diagram showing an example of a timing mark of advertisement information printed on the back surface of a roll sheet as another embodiment of the present invention. (A) shows an example in which a timing mark indicating the length is printed on the side of the advertisement column. (B)
An example in which a timing mark is printed outside the side of the advertisement section of (a) is shown. (C) shows an example in which a timing mark is printed in a space between advertisement columns. (D) shows an example in which a timing mark is printed on the lower side of the advertisement column.

[Explanation of symbols]

 Reference Signs List 1 roll sheet 3 printing device 5 cutting device 7 sensor 9 electrostamp 40 space 41 advertising information

Claims (11)

[Claims] Claims 1. A monetary unit comprising a receipt printing device for printing sales information or the like on the other side of an advertisement information printing surface of a roll sheet on which information is continuously printed in an arbitrary length in advance and issuing the sales information as a receipt. In a registration machine or a POS terminal device or the like, a sheet conveying device that feeds out and conveys the roll sheet, a printing device that prints the sales information on the conveyed sheet, and that is conveyed when printing of the sales information ends A recognition unit that recognizes an advertisement information end position on the advertisement information printing surface of the roll sheet; and a cutting device that determines a cut position of the roll sheet from the recognized end position of the advertisement information and performs cutting. Receipt printing device characterized by the above-mentioned. 2. The receipt printing apparatus according to claim 1, wherein the recognition means for recognizing the advertisement information end position is an optical sensor. 3. The receipt printing apparatus according to claim 2, wherein the recognition by the optical sensor is performed by detecting a density level of a predetermined number of continuous dots (pixels). 4. In the recognition, when the number of dots (pixels) whose density level has changed returns to an original value below a predetermined number, it is regarded as noise and processed as if the original value was maintained. The receipt printing apparatus according to claim 3, wherein: 5. The receipt printing apparatus according to claim 4, wherein the advertisement information end position is recognized by detecting a space between the advertisement information print and the next advertisement information print. 6. The receipt printing apparatus according to claim 5, wherein the shortest length of the space between the advertisement information printing is specified. 7. The recognition of the advertisement information end position is performed when the sales information printing is completed, when the recognition of the advertisement information position on the back is a space, or when the space is detected by moving up until the space is detected. 7. The receipt printing apparatus according to claim 6, wherein the position recognition processing is performed. 8. The receipt printing apparatus according to claim 4, wherein the recognition of the advertisement information end position is performed by a timing mark printed on one of right and left sides of the advertisement information print section. . 9. The advertisement information end position is recognized by detecting a timing mark printed in a space between the advertisement information print column and the advertisement information print column, and cut control is performed. Item 5. The receipt printing apparatus according to Item 4. 10. A method of printing sales information on a surface opposite to an advertisement information printing surface of a roll sheet on which information is continuously printed at an arbitrary length and issuing the sales information as a receipt, wherein the roll sheet is A step of printing the sales information on a sheet fed out and conveyed by a sheet conveying apparatus and a conveyed sheet, and an advertisement of the advertisement information printing surface of the roll sheet conveyed by the end of the printing of the sales information; A receipt issuing method comprising: a step of recognizing an information end position by a recognition unit; and a step of cutting the roll sheet by a cutting device based on end information of the advertisement information recognized by the recognition unit. 11. The receipt issuing method according to claim 10, wherein in the cutting step, the receipt is fed out by a predetermined length after the advertisement information end position is recognized in the recognizing step, and then the receipt is cut.