JPS60114993A - Electronic cash register - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] This invention relates to an electronic cash register capable of issuing lottery receipts.

[Technical background of the invention and its problems] Conventional electronic cash registers, for example, stamp stamps such as "Payment statement" and "Thank you very much" for cashier 1, but they do not print product sales data or other information. Numerical values such as total 81 data are printed by a printer. Note that the same applies to journals, although there is no stamp printing.

Therefore, if you try to send a lottery receipt using a traditional electronic cash register, the lottery number will be printed 1.
~ will be printed. However, lottery numbers are not allowed to be issued twice, so if this were to be done in one region or nationwide, the number of cash registers would be enormous, making it difficult to coordinate between each register, and the printers would not be able to print lottery numbers. There is a problem in that numbers can be easily forged. For this purpose, for example, a method can be considered in which serial numbers for lottery tickets are printed in advance on receipt paper at regular intervals, and the receipt paper is sold by local governments or the government to various businesses. However, if you do it like this, one cash register - 1 ~
Since the length is determined, the number of data that can be printed on one receipt is limited.For this reason, if the number of items purchased by one customer cannot fit on one receipt, two receipts may be printed.
It needs to be in pieces. However, if you use two receipts,
Confirming the data becomes troublesome. For example, at the end of the first receipt, the total up to that point is printed as a subtotal, and at the beginning of the next receipt, the same data as that subtotal is printed, and the subsequent data is printed. It is conceivable to make it relatively easy to check the contents even if there are two or more receipts. However, if you do this, the product sales data will be printed on the first receipt with exactly the allowable number of print lines, and when you perform subtotal processing and registration closing processing, the second receipt will contain the total for subtotals and closing. There is a problem in which an unreasonable situation occurs in which only the amount is printed and wasteful receipts are issued.

[Purpose of the Invention] This invention was made in view of the above circumstances, and is a method to ensure that one lottery number is printed on each receipt in a machine that uses paper for the cash register 1 on which a lottery ticket is printed in advance. In addition, there is no risk of overprinting the print data on the lottery numbers, and when the product sales data of the permissible number of print lines is printed on the cash register 1 and subtotal processing and closing processing are performed, the subtotal is To provide an electronic cash register which can issue only one receipt by prohibiting the printing of other items and print only the total amount at closing, and can prevent wasteful issuance of cash registers 1 to 1.

[Summary of the Invention] This invention registers product sales data input into a customer service area by operating a data input stage, displays the product sales data and total data on a display, and prints them out using a printer. In an electronic cash register that issues a receipt, at least a large number of detection marks are printed vertically at approximately constant intervals, and lottery numbers having different numerical values are printed at approximately the same position between the detection marks. Receipt paper that is printed one by one, a printer that prints product sales data, totals, etc. on the receipt paper, a feed mechanism that controls the feeding of the receipt paper, and the cash register 1 to cut the paper. a printer mechanism having a cutter for detecting the receipt paper; first and second sensors for detecting the detection mark on the receipt paper at different timings; a receipt cut control means for controlling a cutter to cut the receipt paper at a predetermined cutting position; a closing key for instructing one customer to complete a registration operation to enable operation of the receipt cut control means; A subtotal key for excluding the registered total of sales data as a subtotal, and in response to the detection operation of the detection mark by the second sensor, move the paper register 1 to the printing start position of the printing area by the printer. A register 1 to paper positioning means for positioning, an allowable print line number setting means for setting the allowable print line number of product sales data on the receipt paper, and an allowable print line number set by the allowable print line number setting means. If the subtotal key and the closing key are operated without the product sales data being printed until then, the registered total up to that point is printed as a subtotal, and the total amount according to the closing of registration is printed,
When the product sales data has been printed up to the allowable number of print lines set by the allowable print line number setting means and the subtotal key and the close key are operated, printing of subtotals is prohibited and the total is set by closing the registration. A printing control means for printing only the separate amount is provided.

[Embodiments of the invention] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the external appearance, where 1 is the cash register main body, and 2 is a drawer storage section which serves as a stand on which the cash register main body 1 is placed. A keyboard 3, a control switch 4, a receipt issuing port 5, and a journal paper inspection window 6 are provided at the center of the front of the cash register main body 1.
is provided, and a display 7 is provided at the upper front surface. A drawer 8 is housed in the drawer storage section 2 so as to be freely retractable.

The keyboard 3 has [OOJ r
OJ rIJ ~ "9""・" numeric key 31, "01"
” to “15” department keys 32, “C” clear key 33
, subtotal key 34 for "subtotal", deposit/cash total key 35 for "deposit/cash total", multiplication key 36 for rXJ, PLU key 37 for rPLUJ, #/current key 38 for "#/current", other sheets A feed key 39, a journal feed key 40, and the like are provided.

As shown in Fig. 3, the control switch 4 can be set to ``Setting'', ``Lock'', ``Registration'', ``Inspection JrPLUJ''.
This is a key-type switch for instructing various business modes such as "Return Registration" and "Payment". Here, "Settings" is a mode for setting various data necessary for performing registration operations, "Lock" is a mode for prohibiting key human power when the cashier temporarily leaves his/her seat, and "Registration" is Register product sales data in internal memory,
It is also a mode for issuing receipts, and is an "inspection" mode.
is a mode for printing out registered data for checking mid-way. In addition, "rPLU" is a mode for registering product sales data using the PLtJ (Price Look Up) code set for each item, and "return registration" is for registering registered data negatively due to returns, etc. "Settlement" is a mode for printing out the registered data in order to total it and clearing the registered data in the memory. As shown in FIG. 4, the display 7 includes a numerical display 71 consisting of a department display digit, a lobby 1~ display digit, an amount display digit, and a numeric display 71 that displays "Paper", "Alarm", "Registration", and "Subtotal".
Status display 7 that displays various statuses such as "total" with lamps
2 are provided.

FIG. 5 is a diagram schematically showing the configuration of a printer mechanism for printing receipt paper stored in the cash register main body 1, in which 11 is a printing drum on which a large number of printed characters are lined up, and 12 is a printing drum facing the printing drum 11. Printing hammer arranged as 1
3 is a stamp provided in front of the printing drum 11 when viewed from the receipt issuing port 5, and 14 is the stamp 13.
A sensor installation section 15 provided further forward is a cutter provided near the receipt issuing port 5. Further, 16 is a feed roller provided behind the printing drum 11, and 17 is a pinch roller that is rotated in contact with this feed roller 16. The receipt paper 18 is pinched by the pinch roller 17 due to the rotation of the feed roller 16, and the paper guide 19.2
0, the printing drum 11, the stamp 13, the sensor installation section 14, and the cutter 15 are sequentially fed in the direction shown by the arrow in the figure. Although FIG. 5 has described the mechanism for printing on receipt paper, the cash register body 1 also houses a mechanism for printing on journal paper, and the configuration of this printing mechanism is as follows except for the stamp 13 and cutter 15. The configuration is similar to that shown in FIG. Figure 6 is a plan view of the main parts of the printing mechanism for cash register 1 to paper and journal paper.
3, there are a first EM sensor 21, which is a reflective photo sensor, as a first sensor, and a first 7M sensor 22, which is also a reflective photo sensor, as a second sensor, on both sides of the back side of the receipt 118. They are located side by side. Also, journal paper pudding 1-
The mechanism includes the N1 EMSTM in front of the print drum 23.
A second E tv consisting of a reflective photosensor is installed as the first sensor in the same line position as the sensors 21 and 22.
The l sensor 24 and a second 7M sensor 25, which is also a non-conforming photo sensor, are arranged side by side on both sides of the back surface of the journal paper 26. Note that 27 in the figure is a 7M mark, which will be described later, printed on the back side of the receipt paper 18 and the journal paper 26.

FIG. 7 is a block diagram showing the circuit configuration, and 51 is a CPLI
(Central processing unit [), 52LtROM (IJ-de-
53 is a RAM (random access memo), the CPU 51 connects to the RO via an address path line 54 and a data path line 55.
M52 and RAM53 are connected. Further, 56 is a keyboard controller that controls the keyboard 3, and 57
is an I10 port that inputs and outputs signals to and from the buzzer 58, the drawer 8, and the control switch 4, and also inputs and controls the date and time from the clock circuit 66;
59 is a display controller that controls the display 7. Further, 60 is a printer controller that controls the stamp 13, cutter 15, receipt printer 61, and journal printer 62, respectively, and 63 is an I10 that inputs and controls mark detection signals from the EM sensor 21.24 and 7M sensor 22.25. It is a port. The printers 61 and 62 are composed of the aforementioned printing drum, printing hammer, feed roller, pinch roller, etc. Each controller 56, 59, 6o and each 110 port 57, 63 are connected to the CPU 51 via the data path line 55. Said ROM
52, RAM53, keyboard controller 56, I1
0 port 57, display controller 1-roller 59, printer controller 6o, and I10 port 63 are activated by the CP.
This is done via a control line 65 by a selector 64 controlled by U51.

As shown in FIG. 8, the RAM 53 includes a registration flag UR that is set during registration, a line counter LiC that counts the permissible number of lines of product sales data printed on receipt M18 and journal paper 26 for 11 customers. A number counter PEG that counts the number of cashiers 1~ issued by
, a multiplication flag MU that is set when performing multiplication processing of key human power, a subdivision flag PS that is set when performing subtotal processing when registering product sales data, and departmental sales memory 531
, various sales memories such as cash sales memory 532, register number memory 533 that stores a register number i unique to the cash register, serial number memory 534 that stores a series of numbers that change each time a receipt is issued to a customer, and a responsible person code. A person-in-charge code memory 535 that stores the data, a unit price memory 536 that stores the unit price data entered manually, and the like are formed. FIG. 9 shows lottery numbers 2 preprinted on the receipt paper 18 and journal paper 26.
8. This is a diagram showing the arrangement relationship of the TM mark 27 and the EM mark 29. The lottery number 28 is composed of, for example, an 8-digit serial number that changes continuously, and is printed sequentially at regular intervals. Further, the 7M mark 27 is located exactly on the back side of the lottery number 28 and is printed vertically on one side of the paper at approximately constant intervals, and roughly the two EM marks are on the back side of the lottery number 28. They are located on the back surface slightly above the printing position and are printed vertically on the other side of the paper at approximately constant intervals. In addition, the EM mark 2
An explanatory text 30 containing a message related to the lottery is printed on the surface of the paper where the number 9 is located.

FIG. 10 is a diagram showing the positional relationship between the receipt paper 18 and each part of the printer mechanism. When the first 7M sensor 22 detects the TM mark 27, the stamp printing position S of the receipt cover 18 is set to the stamp 13. position, and the date printing position is between the printing drum 11 and the printing hammer 1.
1 line before the position opposite to 2, and 11 for receipts.
The tip of the cutter 8 is at the cutter 15 position. Note that a serial number N is printed three lines above the date printing position, and a register number R is printed four lines above.

FIG. 11 shows that the CPU 51 is connected to the first 2M sensor 2.
1 and the first 7M sensor 2z detect the EM mark 29 and the 7M mark 27. This process is performed based on the program data of the ROM 52. Note that this process will be described for receipt paper, but it is the same for journal paper, however, in the case of journal paper, stamp printing and receipt cutting processes are not performed.

In this process, first, it is checked whether the control switch 4 is in the "registration" mode.

If it is in the "registration" mode, then it is checked whether the registration flag UR has been reset to 1 or not. If the registration flag UR is reset, the first 7M sensor 2
2 and the first EM sensor 2] to detect the 7M mark 27 and the EM mark 29. If the 7M mark 27 is detected and the EM mark 29 is not detected, it is determined that the receipt paper 18 is correctly set, and the paper lamp of the status indicator 72 is controlled to turn off. In addition, the 7M mark 27 may not be detected, or the 7M mark 27 and E
If both M marks 29 are detected at the same time, it is determined that there is an abnormality in the receipt paper 18, and the paper lamp is blinked.

In other words, if the 7M mark 27 is not detected, either the paper is not set correctly or paper that is not for the lottery is set, and the 7M mark 27 and EM
If both marks 2 and 9 are detected at the same time, this is a phenomenon that occurs because no paper is set at all, and it is detected that no paper is set. If it is determined that the receipt paper 18 has been correctly pressed, the key is put on standby. Then, if there is key power, a mode check is performed, and if it is in the "registration" mode, it is determined whether the key power is department key 32, deposit/cash key 35, subtotal key 34, multiplication key 36, or another key power. do. Department key 3
If it is 2, it is checked whether the number digits entered in the product sales amount data by the number key 31 entered previously are correct. If this number digit is incorrect, an error will be handled. If it is correct, then it is checked whether the registration flag tJR- has been reset. If it has been reset, it is determined that this is the first department registration, and the date data of the counter circuit 66 is printed by the printer 61. Subsequently, only one line is fed, the cellar 1-1 line counter LiC of the registration flag UR is cleared to zero, and the sheet number counter PEG is set to 1 in sequence. Also, if the registration flag UR is set, this process is passed.

Next, the line number counter is used to check whether the iC is counting 9 lines, which is one digit less than the allowable number of print lines of 10 lines. If 9 lines have not been counted, then it is checked whether the allowable number of print lines has reached 10 lines. If 10 lines have not been counted, it is determined that there is still plenty of printing lines, and the process of registering product sales data in the departmental sales memory 531 and displaying the department code and amount on the display 71 is performed in sequence. . Also, when the count of the line number counter LiC is 9 lines, it is next checked whether the multiplication flag UM is set, and if the flag IJM is not set, then the line number counter is counted, and the IC counts 10 lines. If 10 lines have not been counted, the process of registering the product sales data in the departmental sales memory 531 and the process of displaying the department code and amount on the display 71 are sequentially performed in the same manner as described above. Also, line number counter liC
counts 9 lines, and at that time the multiplication flag UM is set, first feeds only one line, then prints the total up to that point as a subtotal amount on the printer 61, feeds one line, and then The EM mark 29 is detected by the first EM sensor 21. This is repeated until the EM mark 29 is detected. If the change E is performed, the receipt paper 18 will be fed until the EM mark 29 is detected. When the EM mark 29 is detected, only one line is fed, and then the register number memory 5
33 and the serial number N stored in the serial number memory 534 are performed, and then only two lines are fed. At this point, the receipt paper 18 is positioned exactly as shown in FIG. Then, the stamp 13 prints a stamp on the receipt paper 18 to be issued next, and the cutter 15 cuts the receipt paper 18. In addition, the sheet number counter PEG is counted up by one, the date is printed on the next receipt paper 18, and after feeding only one line, subtotals are printed, and the line number counter is incremented.
Set C to 1. After that, the registration process to the departmental sales memory 531 and the display of the department code are performed in the same manner as described above. Further, when the line number counter LiC counts 10 lines, the first line is not fed, but the subtotal is printed, and thereafter the same process as when detecting the setting of the multiplication flag UM is performed. In the above, after the department code and amount are displayed, it is then checked whether the multiplication flag UM is set, and if it is set, the unit price data and quantity in the unit price memory 536 are first transferred to the printer 6 in one line.
1 is printed, the line number is countered, the IC is incremented by 1, and the department code and amount are printed on the next line. Also, passenger flag UM
If is not set, only the department code and amount will be printed. When this process is completed, the line number counter L
Add 1 to iC, and reset the subtotal of 7 lags PS and the multiplication flag UM. The program routine then returns to the process of detecting the 7M mark 27 and EM mark 29 again.

When the above-mentioned key is the deposit/cash total key 35, first check whether the 7-lag UR during registration has been reset, and if it has been reset, the deposit/cash total key 35 is operated even though registration is not in progress. If so, handle the error. If it is set, the contents of the line counter LiC are checked, and if the contents are not 10 lines, feeding control of the receipt paper 18 is performed until 10 lines are counted. Then, when the line number counter LiC counts 10 lines,
Memory processing for rules, ie, processing for registering total sales data in the cash sales memory 532, etc. is performed.

It also sequentially performs display processing of the total S1 amount, display processing of the change amount, printing processing of the responsible person code and total amount stored in the responsible person code memory 535, and printing of the time called from the clock circuit 66.

Next, the receipt paper 18 is fed until the EM mark 29 is detected by the first 2M sensor 21, and when the EM mark is detected, only one line is fed, and then the register number is printed and the series is continued. Number memory 53
After adding 1 to the contents of 4, the next serial number is printed in sequence. After feeding only 2 lines, stamp printing and receipt cutting are performed sequentially, and finally the registering flag U
R and the subtotal flag CT are reset, and the program routine returns to the process of detecting the 7M mark 27 and EM mark 29.

Furthermore, when the aforementioned key input is the subtotal key 34, it is first checked whether there is no input key input before it. Then, if there is a human resource set, handle the error, and if there is no human resource, then check whether the registration flag UR has been reset, and if it is set, process the error and reset it again. calculate and display subtotals. Next, check whether the line counter LiC is counting 10 lines and whether the subtotal flag PS is set. If the line counter LiC is not counting 10 lines and the subtotal flag is not set, subtotaling is performed. It prints, increments the line counter LiC by 1, and sets the subtotal flag PS. Further, when the line number counter LiC is counting 10 lines or the subtotal flag PS is set, only the subtotal flag PS is set without printing the subtotals.

Then the program routine starts again with 7M marks 27 and E.
Returning to the M mark 29 detection process.

Furthermore, when the above-mentioned key is the multiplication key 36, a number is first placed in front of it to check whether the number of digits in the unit price data is correct, and if it is not correct, an error is handled, and if it is correct, the number is placed. The unit price is saved in the unit price memory 536, and the multiplication flag MCI is set. Then, the program routine returns to the process of detecting the 7M mark 27 and EM mark 29.

In addition, in this program processing, all printing including date printing, subtotal printing, register number printing, serial number printing, unit price and numeric value printing, department code and amount printing, manager code and total amount printing, time stamp printing, etc. is always accompanied by a one-line feed.

In the apparatus according to the embodiment of the present invention configured as J: sea urchin,
When the first EM sensor 21 detects the EM mark 29, it feeds one line, prints the register number, prints the serial number, feeds two lines, and cuts the receipt. 1~ The 7M mark 27 on paper 18 is now detected by the first 7M sensor 22, and since the lottery number is printed at the same position as the 7M mark 27, it is printed on the single receipt issued. always contains only one lottery number, 28, on a single receipt.
There is no risk of getting two lottery numbers. Also, when starting printing manually on the receipt paper 18, the first
7M sensor 22 has detected 7M mark 27,
Also, when the line counter LiC counts 10 lines, which is the allowable number of print lines, or when the multiplication key 36 is pressed manually when counting 9 lines, the subsequent manual data printing is prohibited, and the EM sensor 21 of Ml prints the EM. mark 29
Since the receipt is fed until the lottery number is detected, there is no risk of data being accidentally printed over the lottery number. Furthermore, if the number of purchased items by a customer exceeds 10 items that can fit on one receipt, printing on that receipt will be prohibited as soon as the product sales data for 10 items is printed on the first receipt, and a receipt will be issued. is performed, and the 11th and subsequent product sales data are printed on the next receipt paper by the detection operation of the EM mark 29 and 7M mark 27, so two receipts are issued for - customers. However, with one registration operation, the customer's purchased products can be registered without any problems. Furthermore, when the line number counter LiC clicks the 10th line (...), the registration of the customer is completed, and when the subtotal key 34 and the deposit/cash total key 35 are operated, printing of the subtotal amount is prohibited and no information is sent to the cash register 1. At the end, a receipt as shown in Figure 12 with only the total amount printed is issued.Therefore, only one receipt is issued, and a wasteful receipt is issued in which only the subtotal amount and the total amount are printed. Never.

In the above embodiment, the EM sensor and the TM sensor are provided at the same position, and the EM mark and T fvl mark at different positions are thereby detected to control the positioning of the receipt cut printing start position. The invention is not necessarily limited to this, but even if the EM sensor and the M sensor are provided at different positions on the same vertical line, and one mark is detected by both sensors, the mark detection timing can be shifted. The same control can be achieved. Furthermore, in the above embodiment, when two or more receipts are issued to one customer, each receipt is cut and issued, but the invention is not necessarily limited to this, and the cutting of the receipt can be done using a locking key. This may be done only when the deposit/cash key is operated, and when switching receipts during department registration, the receipt may be issued in the form of a spelled receipt without being cut.

[Effects of the Invention] As detailed above, according to the present invention, when using receipt paper on which lottery numbers are printed in advance, it is possible to reliably include one lottery number on one receipt, and There is no risk of overprinting the print data on the lottery numbers, and furthermore, when the permissible number of lines of product sales data is printed on the receipt and subtotal processing and closing processing are performed, printing of the subtotal amount is prohibited. By printing only the total amount, only one receipt can be issued, and it is possible to provide an electronic cash register that can prevent wasteful issuance of receipts.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a perspective view showing the external appearance, Fig. 2 is a keyboard view, Fig. 3 is a view showing a control 1-roll switch, and Fig. 4 is a view showing a display. Figure, 5th
The figure is a schematic configuration diagram of the main parts of the printer mechanism, Figure 6 is a diagram showing the positional relationship between the marks on receipt paper and journal paper, each sensor, stamp, and print drum, and Figure 7 is a block diagram. FIG. 8 is a diagram showing the main memory configuration of RAM,
Figure 1 is a diagram showing unprinted receipt paper, Figure 10 is a diagram showing the positional relationship between the next receipt paper and the sensor, stamp, printing drum, and printing hammer when the receipt paper is cut, and Figure 11 is the CPU FIG. 12 is a flowchart showing the printing process on the cash register 1 and the receipt issuing process, and FIG. 12 is a diagram showing an example of printing on the receipt when subtotal printing is omitted. 3...Keyboard, 11...Print drum, 14...
・Sensor installation part, 15...Cutter, 16...Feed roller, 18...Receipt paper, 21.24.
...EM sensor, 22.25...TM sensor, 2
7...TM mark, 28...Lottery number, 29.
...2M mark, 36...multiplication key, 51...cp
u <Central processing unit), 52...ROM (Read/
only memory), RAfvl (random access memory), LIC...line number counter, PS...subtotal flag. Applicant's representative Patent attorney Takehiko Suzue: S 12 Draft procedure amendment 16 cases 1 house 9, 5th layer 7, 1 Patent Office Kuma official Kazuo Wakasugi 1, case indication Tokusho 58-222850 No. 2, issue! Name of the horse, Lambda Keyash Rexta 3, Person making the amendment Patent applicant (356) Tokyo Ukei Co., Ltd. 4, Agent 7, ■ Stop Endai (1) Ming full :i:l :': 2T922 Page 6
From the 7th line to the 7th line, it says ``If it is set, handle the error, and if it is set again'', it says ``Reset'') If it is L, handle the error and set it again.''
1 Correct. (2) Ming X1it, page 18, line 8, same page, line 10, =] CS No. 16, page 16, page 0, line 2, same page, line 5
rU on line 1, line 10 on the same day, and line 13 on the same page, respectively.
Correct MJ to rMUJ. (3) No. 111 of the drawings. Correct the bending of ll/1 by another school.

Claims (1)

[Claims] The product sales data inputted into the customer waiting area by operating the data input means is registered, the product sales data and total data are displayed on the display, and the printer is used to print the data.
In an electronic cash register that issues a receipt using a hair register, at least a large number of detection marks are printed vertically at approximately constant intervals, and each of the detection marks is located at approximately the same position and has a different numerical value. Receipt paper on which lottery numbers are printed one by one, a printer for printing product sales numbers, totals, etc. on the receipt paper, a feed machine 4 for feeding and controlling the receipt paper, and the cash register. -1 - Four printers each having a cutter for cutting paper, and the cash register -1.
The first step is to detect the detection marks on the paper at different timings.
, a receipt cut control means for controlling the feed mechanism and cutter to cut the receipt paper at a predetermined cut position in response to the detection operation of the detection mark by the second sensor and the first hinge; a closing key for instructing to close the registration operation for one customer to enable the operation of the receipt cut control means; a subtotal key for calculating the registered total of the product sales data as a subtotal amount;
receipt paper positioning means for positioning the receipt paper at a printing start position in a printing area by the printer in response to the detection operation of the detection mark by the second sensor; and an allowable number of lines of product sales data to be printed on the receipt paper. and an allowable print line number setting means for setting the allowable print line number setting means, and if the product sales data is not printed up to the allowable print line number set by the allowable print line number setting means and the subtotal key and the closing key are pressed, the previous The registered total is printed as a subtotal amount, the combined amount is printed at the end of registration, and the product sales data is printed up to the allowable number of print lines set by the allowable print line number setting means, and the subtotal key and An electronic cash register characterized by incorporating a print control means that prohibits printing of a subtotal amount when a key operation of a closing key is performed, and prints only the total amount due to closing of registration.