JPH04250595A - Electronic cash register - Google Patents

Abstract

PURPOSE:To issue a clear receipt form without the operation of an operator after the exchange of the form and to enable efficient form exchange. CONSTITUTION:When the exhaustion of rolled recording paper is discriminated according to an output from a sensor provided at a printing part, a rolled recording paper exhaustion data is held in a recording paper state storage part 26. When the existence of the rolled recording paper sheets is discriminated according to the output from the sensor, it is discriminated from the contents of the recording paper state storage part 26 whether the rolled recording paper are exchanged or not, and when the exchange of the rolled recording paper sheets is discriminated, a rolled recording paper existence data is stored in the recording paper state storage part 26. Then, the rolled recording paper is cut by driving a cutter mechanism. Thus, the useless recording paper sheets can be abandonned.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic cash register that prints registered product data on recording paper.

0002

2. Description of the Related Art Conventional electronic cash registers print product data registration results on rolled recording paper (hereinafter referred to as receipt paper) using an R/J (receipt journal) printer and issue the result as a receipt. An R/J printer is generally provided with a print mechanism including a print head and a cutter mechanism for cutting the receipt after printing the registration results. However, in the case of such conventional electronic cash registers, when the receipt paper runs out, if you reset the receipt paper and perform the immediate registration operation, the extra receipt paper that was pulled out when setting the receipt paper will remain as it is. The problem was that the receipts were issued as receipts, which made the receipts look bad and made customers feel uncomfortable. Therefore, when attempting to cut the excess portion of the receipt paper, it was necessary to operate a specific key to issue the receipt paper once and operate the cutter mechanism.

0003

[Problems to be Solved by the Invention] As mentioned above, in the conventional electronic cash register, the receipt issued at the first registration after setting the receipt paper looks bad.
In addition, when cutting off the excess portion to improve the appearance, the operator must perform some operations, which is cumbersome. In view of the problems of the prior art, the present invention aims to provide an electronic cash register that can issue a good-looking receipt without operator intervention after replacing the receipt paper, and that can efficiently replace the receipt paper. purpose.

0004

[Means for Solving the Problems] In the present invention, the product data inputted in the input section is registered in the data processing section, and the registration result is recorded on the recording paper pulled out from the roll paper holding section that holds the rolled recording paper. In an electronic cash register including a printing section having a printing mechanism for printing and a cutter mechanism for cutting the recording paper at a predetermined position, a recording paper state storage section for storing presence or absence of the rolled recording paper;
a sensor provided in the printing section for detecting the presence or absence of a roll of recording paper; a first determination means for determining the presence or absence of a roll of recording paper; and a first determination means that determines that there is no roll of recording paper. state storage control means for storing roll-shaped recording paper no data in the recording paper state storage unit when the roll-shaped recording paper is absent;
a second step for determining that the roll of recording paper has been replaced based on the content of the recording paper state storage unit indicating that there is no roll of recording paper when the determination means determines that there is a roll of recording paper; and initial processing means for storing rolled recording paper presence data in the recording paper state storage section and driving the cutter mechanism based on the result of the second determining means.

[0005]

[Operation] When it is determined from the output from the sensor that there is no roll of recording paper, no recording paper data is stored in the recording paper status storage section. Further, when it is determined that there is a roll of recording paper based on the output from the sensor, it is determined that the recording paper has been replaced since the content of the recording paper status storage section is that there is no recording paper, and the recording paper presence data is stored in the recording paper. The state is stored in the state storage section and the cutter mechanism is driven to cut the recording paper. This allows wasteful recording paper to be discarded.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. FIG. 1 is a hardware configuration diagram of the electronic cash register of this embodiment. CPU1 which is a data processing unit
is the central part of this device that executes arithmetic processing on various data input from the keyboard 5, which is an input section.Fixed data is sent to the CPU 1 via a bus line 2 consisting of an address bus, a data bus, and a control line. ROM3 that stores
, a RAM 4 that stores variable data, a keyboard controller 6 that controls the keyboard 5, a clock circuit 7 that measures date and time, a display controller 9 that controls the display 8, and a signal output to the drawer opening device 11. Also connected are an I/O port 12 for outputting signals to a plurality of LED indicators 10 that blink depending on various conditions, and a printer controller 20 that controls an R/J printer 13 that is a printing section. The R/J printer 13 also drives a journal feed mechanism 14 that feeds journal paper, a receipt feed mechanism 15 that feeds receipt paper, a sensor 16 that detects the presence or absence of receipt paper and journal paper, and a print head. The printhead drive mechanism 17 is a printing mechanism that drives a cutter, a cutter drive mechanism 18 that is a cutter mechanism that drives a cutter, a stamp drive mechanism 19 that drives a stamp, and the like. The sensor 16 is provided on the receiving surface of the receipt paper of the receiving section on which the receipt paper is placed, and has a mechanism that turns on and off depending on the weight of the paper. This mechanism switches off the sensor 16 when the amount of paper is less than a predetermined amount, indicating that there is no paper since the paper needs to be replaced. One sensor is provided on the receipt paper side and one on the journal paper side.

FIG. 2 is a block diagram of the main memory used in this embodiment of the RAM 4. In addition to the cumulative memory that stores the sales amount and the product table that stores the unit price for each product code, the RAM 4 has a print buffer 21 that stores the data to be printed, and a message that stores the message number corresponding to the message that is currently being printed. A number memory 22, a date memory 23 that stores the current date, a work memory 24 that temporarily stores predetermined data, a message memory 25 that stores various messages, and a receipt that is a recording paper state storage unit that shows the state of the receipt paper. It is composed of a paper flag memory 26, a registration flag memory 27 indicating that registration is in progress, and the like. All of these memories are backed up by batteries and retain their data even when the power is turned off. Further, the message memory is composed of a message number area 251 for storing message numbers, an update date area 252 for storing the date on which message printing is to start, and a message area 253 for storing messages.

FIGS. 3 to 7 are flowcharts showing the processing of the electronic cash register in this embodiment. FIG. 3 is a flowchart showing the electronic cash register registration process. In step 100, registration processing is performed such as cumulatively storing the number of sales etc. based on the product data input from the keyboard, and when the subtotal key is input, the total amount registered in step 101 is printed and displayed. When the process is executed and the closing key is input, subtotal processing such as printing and displaying change is executed in step 102. This process is repeated during registration work.

FIG. 4 is a flowchart showing details of the closing process in step 102. The change is calculated from the total amount registered in step 103 and the amount deposited from the customer, and printed on the R/J printer 13 or displayed on the display 8.
Display in . In step 104, the memory (not shown) for storing the total amount per customer and the registration flag memory 27 are cleared. The registration flag memory 27 is set and reset for each customer, and is set when the first product data for one customer is input. In step 105, the current time is read from the clock circuit 7 and stored in the work memory 24. The date stored in the date memory 23 and the work memory 24 in step 106
Compare the dates and determine whether they match. If they match, the process advances to step 111 and print processing is executed. If they do not match, in order to correct the print data, the date in the work memory 24 is stored in the date memory 23 in step 107, and the message number corresponding to the stored date is stored in the message memory 25 in step 108. Search by referring to the update date area 252, and select the message number area 25.
1 and stored in the work memory 24. In step 109, it is determined whether or not the message number stored in the message number memory 22 and the read message number match. If they match, the process proceeds to printing; if they do not match, the message is printed. Since it is necessary to change the message number memory 2 in step 110,
2 stores the message number in the work memory 24. In step 111, printing processes such as printing a stamp, date, and message are executed.

FIG. 5 is a flowchart showing details of the printing process in step 111. In step 112, the registration flag memory 27 is checked to determine whether printing processing is executable. This is to prohibit this printing process during registration. In other words, since checks on the receipt paper and whether the date has been updated are performed at regular intervals, there is a possibility that the printing process will be performed even during registration. However, since it is not good to perform pre-printing during registration, pre-printing during registration is prohibited. If 1 is set in the registration flag memory 27, the process ends without printing because it is being registered. If the registration flag memory 27 is cleared to 0, it means that the registration is not in progress, and in step 113 a feed command for feeding the receipt paper a predetermined number of lines is set in the print buffer 21. The stamp command is set in the print buffer 21 in step 114, and the date memory 23 is set in step 115.
The date stored in is edited into print data and set in the print buffer 21. In step 116, the message corresponding to the message number stored in the message number memory 22 is transferred to the message area 2 of the message memory 25.
53, edit it into print data, and set it in the print buffer 21. In step 117, a cutting command is set in the print buffer 21. When the sequential setting is completed, the data is outputted to the R/J printer 13 in step 140. R/J
The printer 13 receives the receipt feed mechanism 1 according to the command.
5 to feed a predetermined number of lines of receipt paper,
The stamp mechanism 19 is driven to stamp. The print head drive mechanism 17 prints the date and a message, and the cutter drive mechanism 19 is driven to cut the receipt paper.

FIG. 6 is a flowchart of a paper check that checks whether a receipt paper is present and whether the date has changed, and is executed at regular intervals. Although the electronic cash register of this embodiment uses the LED display 10 to warn that the receipt paper is running out, it is difficult to detect the absence of the receipt paper until it has completely run out. This is undesirable from an operational point of view, as when customers are lined up at the checkout area, the operator may not have time to replace the receipt paper. Therefore, the absence of paper, not just receipt paper, is normally detected a little later than when there is no paper at all. Therefore, even if the operator receives a warning that there is no receipt paper,
Approximately one to three people can carry out the registration work, and the receipt paper can be exchanged when there is free time between them. The reason why the date is checked even though there is no receipt paper in this process is to print and issue on extra receipt paper. Also, the interval at which this paper check process is executed can be set arbitrarily, but for example, 10
It is assumed to be about ms.

In step 118, the output of the sensor 16 is read, and based on whether the signal from the sensor on the receipt paper side is off or on, the presence or absence of the receipt paper is determined in step 119, which is a first determining means. If there is no receipt paper, that is, the sensor 16 on the receipt paper side
If the output is 0, the state storage control means sets 1 in the receipt paper flag memory 26 in step 130, and in step 131 sets one of the LED indicators 10 indicating that there is no receipt paper. Light one. In step 132, it is checked whether the date has been updated, and this paper check process is ended. This date check is performed because even if there is no receipt paper, there may still be some receipt paper left. The date check in step 132 will be explained later with reference to FIG.

If it is determined in step 119 that there is a receipt paper, that is, if the output from the sensor 16 on the receipt paper side is 1, 1 is stored in the receipt paper flag memory 26 in step 120, which is the second determination means. It is determined whether or not the receipt paper is set. If 1 is not set, it means that there is no change in the condition of the receipt paper, and the date check process of step 132 is executed. If 1 is set in the receipt paper flag memory 26, it means that the receipt paper has been replaced, so step 12
In step 1, the receipt paper flag memory 26 is cleared to 0, and in step 122, the LED display 10 that is lit to indicate that there is no receipt paper is turned off. In step 123, the current date is read from the clock circuit 7 and stored in the work memory 24. In step 124, the date stored in the date memory 23 and the work memory 2
Compare the dates of 4 and determine whether they match. If they match, the process advances to step 129 and print processing is executed. If they do not match, step 125 is performed to correct the print data.
The date of the work memory 24 is stored in the date memory 23, and
The message number corresponding to the date stored in step 126 is searched by referring to the update date area 252 of the message memory 25, and the message number area 2
51 and stored in the work memory 24. In step 127, it is determined whether the message number stored in the message number memory 22 and the read message number match or not. If they match, the process proceeds to printing, and if they do not match, the message is changed. In step 128, the message number memory 2 is
2 stores the message number in the work memory 24. In step 129, printing of a stamp, date, message, cutting of the leading edge of the receipt paper from the stamped position, etc. are executed, and the paper checking process is completed. The leading edge of the receipt paper is an extra part for the first sheet of receipt paper when the receipt paper is replaced, and this is cut and removed to create a good-looking receipt. Steps 121 and 129 are initial processing means.

FIG. 7 is a flowchart showing details of the date check process in step 132. Step 13
3, the current date is read from the clock circuit 7 and stored in the work memory 24. In step 134, the date stored in the date memory 23 and the date in the work memory 24 are compared to determine whether they match. If they match, this date check process ends. If they do not match, in order to correct the print data, the date in the work memory 24 is stored in the date memory 23 in step 135, and the message number corresponding to the stored date is stored in the message memory 25 in step 136. The message is searched by referring to the update date area 252, read from the message number area 251, and stored in the work memory 24. In step 137, it is determined whether the message number stored in the message number memory 22 and the read message number match. If they match, the process proceeds to printing; if they do not match, the message is printed. Step 1 as we need to change
At 38, the message number in the work memory 24 is stored in the message number memory 22. In step 139, printing processes such as printing a stamp, date, and message are executed, and the date check process is completed. Note that the printing process is the same as that described with reference to FIG.

Next, the operation of this embodiment will be explained. Figures 8 and 9
The figure shows a printing example showing the printing results of this embodiment, and FIG. 8 (A
) is an example when the date is changed but the message remains the same, Figure 8 (B) is an example when both the date and message are changed, and Figure 9 is an example when the receipt paper is replaced. be. The operation will be explained according to this printing example. Suppose it is now February 9, 1991. When the closing key is input to complete the registration process for one customer, the receipt paper is fed to a specified line according to the flowcharts in Figures 4 and 5, and a stamp with the store name, etc., is printed, the date is printed, and a message is printed. The machine then cuts the paper and issues a receipt paper for the registered customer. This is the same as before. Then the date is 9
When the 10th day arrives, a new receipt paper is issued by the process of checking whether the state of the receipt paper and the date have been updated, which is executed at regular intervals, that is, the process shown in FIGS. 6 and 7. As the date has changed, the new date is stored in the date memory 23. January 1
Since the message number corresponding to the 0th is the same as the 9th, the message is not changed and after feeding the specified line, stamp the store name etc. and print the new date as shown in (a). Then, print a message, cut it at the position (a), and issue the receipt paper with the old date printed on it to be discarded.

When the date becomes February 11th, the new date is stored in the date memory 23 by checking the state of the receipt paper and whether the date has been updated. The message number corresponding to February 11th is stored as a new message number in the message number memory 22, and after feeding a predetermined line, a stamp such as the store name is stamped, and the new date is printed as shown in (c). Print a new message as shown in (d), cut at the position (a), and issue the receipt paper with the old date printed on it to be discarded.

As for the operation when the receipt paper is replaced, it is assumed that the receipt paper was replaced on February 10th. The printing results are shown in FIG. When the receipt paper becomes low, the sensor 16 detects that the receipt paper needs to be replaced by checking the status of the receipt paper and whether the date has been updated, which is executed at regular intervals, and the receipt paper flag memory 26 detects that the receipt paper needs to be replaced. is set to 1, and the LED display prompts the operator to replace the paper. The state of this LED is maintained until the paper is replaced. When the operator replaces the receipt paper, the sensor 16 detects the presence of the receipt paper. Based on this, it is checked whether 1 is set in the receipt paper flag memory 26. Since 1 is set in the receipt paper flag memory 26, it is determined that the receipt paper has been replaced, and after feeding a predetermined line, a stamp with the store name etc. is stamped, the date is printed, a message is printed, and the paper is cut. in position (e), and remove the excess receipt paper (
F) is issued for disposal.

As described above, in the electronic cash register of the present invention, when the receipt paper is replaced, the excess receipt paper is automatically cut off to prepare for registration. In this embodiment, feeding, stamping, printing, and cutting are performed when receipt paper is replaced. However, the present invention is not limited to this embodiment, and the present invention is not limited to this embodiment. Various modifications can be made without departing from the spirit of the invention.

[0019]

[Effects] A recording paper status storage unit that stores the presence or absence of the roll recording paper, a sensor provided in the printing unit that detects the presence or absence of the roll recording paper, and a a first determining means for determining the presence or absence of a roll of recording paper; and a state storage control means for storing roll recording paper no data in the recording paper state storage unit when the first determining means determines that there is no roll of recording paper. and, when the first determining means determines that there is a roll of recording paper, the roll of recording paper is replaced based on the content of the recording paper status storage unit indicating that there is no roll of recording paper. and initial processing means for storing rolled recording paper presence data in the recording paper state storage section and driving a cutter mechanism based on the result of the second determining means. Therefore, when the roll of recording paper is replaced, the excess recording paper is automatically cut off. This makes it possible to issue a receipt that does not make the customer feel uncomfortable from the first registration after replacing the paper.Furthermore, the operator does not have to perform any special operations after replacing the roll of recording paper, making it less troublesome and more efficient. This makes it possible to exchange paper easily.

[Brief explanation of the drawing]

FIG. 1 is a hardware configuration diagram of an electronic cash register of the present invention.

FIG. 2 is a configuration diagram of main memories used in the present invention.

FIG. 3 is a flowchart showing the electronic cash register registration process of the present invention.

FIG. 4 is a flowchart showing details of the electronic cash register closing process of the present invention.

FIG. 5 is a flowchart showing in detail the printing process of the electronic cash register of the present invention.

FIG. 6 is a flowchart of the electronic cash register paper check of the present invention.

FIG. 7 is a flowchart showing in detail the process of checking the date of the electronic cash register according to the present invention.

FIG. 8 is a printing example showing the printing result of the present invention.

FIG. 9 is a printing example showing the printing result of the present invention.

[Explanation of symbols]

1 CPU 5 Keyboard 13 R/J printer 16 Sensor 17 Print head drive mechanism 18 Cutter drive mechanism

Claims (1)

[Claims] Claim 1: A printing mechanism and a predetermined position for registering product data input in an input unit in a data processing unit and printing the registration result on recording paper pulled out from a roll paper holding unit that holds a roll of recording paper. In the electronic cash register, the electronic cash register is equipped with a printing section having a cutter mechanism for cutting the recording paper. a sensor for detecting the presence or absence of a roll of recording paper; a first determining means for determining the presence or absence of a roll of recording paper; a state storage control means for storing in a recording paper state storage unit; and when the first determining unit determines that there is a roll of recording paper, the content of the recording paper state storage unit is that there is no roll of recording paper. a second determining means for determining whether the rolled recording paper has been replaced based on the second determining means; and storing rolled recording paper presence data in the recording paper state storage section based on the result of the second determining means; An electronic cash register comprising: initial processing means for driving the cutter mechanism.