JPH0520547A - Electronic cash register - Google Patents

Abstract

PURPOSE:To continue the printing operation only with normal one of a receipt printing part and a journal printing part without the burden to the register main body side at the time when one of both printing parts is abnormal and cannot print data. CONSTITUTION:A register main body 1 transmits a receipt masking command to a printer 2 at the time of detecting the abnormality of the receipt printing part and transmits a journal masking command at the time of detecting the abnormality of the journal printing part. The printer 2 sets a receipt mask flag 33 at the time of receiving the receipt masking command and sets a journal mask flag 34 at the time of receiving the journal masking command. When receipt and journal printing data are received, the printing operation of the receipt printing part is not performed if the receipt mask flag is set, and that of the journal printing part is not performed if the journal mask flag is set.

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 in which a receipt / journal printer is connected to an electronic cash register body via a communication interface.

[0002]

2. Description of the Related Art A printer having a receipt printing section and a journal printing section is connected to an electronic cash register body via a communication interface, and when the product sales data is registered in the electronic cash register body, the registration information is also stored. Create print data for receipt and journal and send it to the printer side. When the printer receives the print data, the receipt print unit and the journal print unit are operated based on the print data to print the receipt and the journal print. There is an electronic cash register that is designed to perform.

In this case, when an abnormality such as a paper jam occurs in one of the printing sections of the printer and printing becomes impossible, the abnormality information is notified to the electronic cash register main body. Then, conventionally, the electronic cash register main body does not operate the printer until the abnormality is avoided, or the main body side edits the print data only for the normal side and sends it to the printer, and prints only the printing section on the normal side. I was dealing with it by printing.

[0004]

However, if the printer is not operated at all until the abnormality of the printing section is avoided, the printing section cannot operate even though the printing section on the normal side can print. It was

On the other hand, when only the printing section on the normal side is printed, efficient printing can be performed. However, the print data for receipt and journal printing is printed on the normal side only in the electronic cash register body. It had to be edited again and the burden on the main unit was great.

Therefore, according to the present invention, even if one of the printers capable of receipt printing and journal printing becomes incapable of printing, the electronic cash register main body side is not burdened and the printing operation is continued only on the normal side. It is an object of the present invention to provide an electronic cash register capable of performing efficient printing.

[0007]

According to the present invention, a printer for receipt and journal printing, which has a control processor different from the electronic cash register main body, is connected to the electronic cash register main body. In an electronic cash register that sends print data such as product sales information registered in step 1 to a printer to perform receipt printing and journal printing, the printer stores receipt mask data according to an abnormality in receipt printing and Mask data storage means for storing journal mask data in accordance with a printing abnormality, and mask status determination for determining the status of mask data stored by the mask data storage means when receiving print data of a receipt and a journal via a communication interface. Means and this discrimination means A printing operation control unit is provided to prevent the receipt printing unit from performing the printing operation when the storage state of the receipt mask data is determined, and to stop the printing operation of the journal printing unit when the storage state of the journal mask data is determined. It is a thing.

[0008]

According to the present invention having such a configuration, when an error occurs in, for example, journal printing of the printer and printing becomes impossible, the mask data storage means stores the journal mask data on the printer side. When print data for receipt and journal printing is sent from the electronic cash register body in this state, the printer stores the journal mask data, so it is controlled not to perform the journal printing operation, and only the receipt printing is performed. Is done.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external view. 1 is an electronic cash register body (hereinafter abbreviated as a register body), 2 is a receipt / journal printer (hereinafter abbreviated as a printer), and 3 is for storing cash or the like. It's a drawer. A keyboard 4 provided with various keys for inputting product sales data and the like on the resistor body 1, controls power on / off, and performs “registration”, “inspection”, “payment”, “setting”
A mode switch 5 for switching and selecting various business modes such as, a cashier display 6 and a customer display 7 for displaying the price of a sold product, the total amount of a customer, and the like are provided.

FIG. 2 is a block diagram, and 11 is a CPU (central processing unit) that constitutes the main control unit of the register body 1. Then, to the CPU 11, via a bus line 12, a ROM (read only memory) 13, a RAM
(Random access memory) 14, clock circuit 15 for clocking the date and time, keyboard controller 16 for controlling the keyboard 4, display controller 17 for controlling each of the display devices 6 and 7, and signals of the mode switch 5 An I / O port 1 for inputting and outputting a drive signal to the drawer opening device 3a for opening the drawer 3
8. A communication interface 19 for controlling data transmission / reception with the printer 2 is connected.

The ROM 13 stores in advance program data and the like for the CPU 11 to control each unit and execute various business modes such as "registration", "inspection", "payment", "setting".

The RAM 14 is provided with a memory area and the like necessary for the CPU 11 to perform registration processing of each item sales data registered for sale by key input of the keyboard 4 and to calculate a total amount and the like.

In FIG. 2, reference numeral 21 is a CPU which constitutes a main control unit of the printer 2. And this CPU 21
To the ROM 23 and the RAM 2 via the bus line 22.
4, a receipt printing unit 25 for printing on receipt paper, a journal printing unit 26 for printing on journal paper, a communication interface 27 for controlling data transmission / reception with the register body 1, and the like are connected.

The ROM 13 stores the program data for the receipt printing and the journal printing by the CPU 21 for controlling the respective parts, the character generator data of the printing characters, and the like.

The RAM 24 is provided with a reception buffer for temporarily storing the print data received from the register body 1, a print buffer for temporarily storing the dot data converted based on the character generator data, and the like.

Further, as shown in FIG. 3, each flag area of a receipt error flag 31, a journal error flag 32, a receipt mask flag 33 and a journal mask flag 34 is provided in the RAM 24.

From the register body 1 via the communication interface 19, print command data in the message format shown in FIG. 4A, sense command data in the message format shown in FIG. 4B, and FIG. The mask command data in the message format shown in (c) and the mask release command data in the message format shown in (d) of the figure are transmitted to the printer 2.

On the other hand, in response to the command reception, the printer 2 sends response data in the message format shown in FIG.

Therefore, the CPU 21 on the printer 2 side
When receiving various command data via the communication interface 27, is program-controlled so as to execute the processing shown in FIGS.

That is, when the mask command data of FIG. 4C is received, as shown in FIG. 5, the receipt mask data in the command data is set, or the journal mask data is set. Determine if. Then, when the receipt mask data is set, the receipt mask flag 33 is set, and when the journal mask data is set, the journal mask flag 34 is set, and this processing is ended. .. (Mask data storage means)

When the mask release command data shown in FIG. 4 (d) is received, the receipt mask flag 33 and the journal mask flag 34 are reset as shown in FIG. 6, and this process ends.

When the sense command data shown in FIG. 4 (b) is received, as shown in FIG.
Check condition 5 When an abnormality (error) such as out-of-receipt paper or paper jam has occurred and printing cannot be performed, the receipt error flag 31 is set. If normal, the receipt error flag 31
To the reset state.

Next, the state of the journal printing section 26 is checked. When printing is not possible due to an abnormality (error) such as running out of journal paper or paper jam, the journal error flag 32 is set.
If it is normal, the journal error flag 32 is reset.

After that, the states of the error flags 31 and 32 are checked, and when both are in the reset state, normal response data is transmitted to the register main body 1 side through the communication interface 27, and the error flags 31 and 32 are reset. If at least one of them is set, the error response data is transmitted to the register body 1 side via the communication interface 27, and this processing is ended.

The normal response data is shown in FIG.
The receipt response data and the journal response data in the message format shown in (e) are set with information indicating that they are normal. Further, the error response data is information indicating the error content as the receipt response data when the receipt printing unit 25 is abnormal, and the error content is indicated as the journal response data when the journal printing unit 26 is abnormal. It is information.

When the print command data shown in FIG. 4 (a) is received, the state of the receipt mask flag 33 is first checked as ST (step) 1 as shown in FIG. 8 (mask state discrimination means). Then, when the flag 33 is reset, the receipt printing unit 25 is normal, so in ST2, the printing operation of the receipt printing unit 25 is controlled and receipt printing of the receipt printing data in the received print command data is performed. ..

After the receipt is printed, the receipt error flag 31 is reset and the process proceeds to ST3. However, when the receipt printing unit 25 is in the printing operation and the printing becomes impossible due to an abnormality such as a paper out of the receipt or a paper jam, the receipt error flag 31 is set to the set state, and the process proceeds to ST3.

On the other hand, when the receipt mask flag 33 is set in ST1, the receipt printing unit 25
Since it is impossible to print due to an abnormal state, the receipt printing unit 25 proceeds to ST3 without performing a printing operation. However, at this time, the receipt error flag 31 is reset so that the receipt printing is completed normally (print operation control means).

At ST3, the journal mask flag 3 is set.
The state 4 is checked (mask state determination means). Then, when the flag 34 is reset, the journal printing unit 26 is normal, so in ST4, the printing operation of the journal printing unit 26 is controlled, and the journal printing of the journal printing data in the received print command data is performed. ..

After printing the journal, the journal error flag 32 is reset and the process proceeds to ST5. However, when the journal printing unit 26 is in the printing operation and printing becomes impossible due to an abnormality such as running out of the journal paper or paper jam, the journal error flag 32 is set and the process proceeds to ST5.

On the other hand, if the journal mask flag 34 is set in ST3, the journal printing unit 26 has an abnormality and cannot print. Therefore, the journal printing unit 26 does not perform the printing operation and the process proceeds to ST5. move on. However, at this time, the journal error flag 32
To the reset state, as if the journal printing was normally completed (printing operation control means).

At ST5, the receipt error flag 31 is sent.
Also, the state of the journal error flag 32 is checked. When both are in the reset state, normal response data is transmitted to the register body 1 side through the communication interface 27, and when at least one of the error flags 31 and 32 is set, the error response data is communicated. This is transmitted to the register body 1 side via the interface 27, and this processing is ended.

On the other hand, the CPU 11 on the register body 1 side
Is program-controlled so as to execute the printing process shown in FIG. 9 at the printing timing of the receipt and the journal.

That is, print command data in the message format shown in FIG. 4A is created based on the receipt and the print data for printing the journal, and the print command data is transmitted to the printer 2 via the communication interface 19 and the printer 2 Wait for a response from. Then, when the normal response data is returned from the printer 2, it is determined that the receipt and the journal printing are normally performed in the printer 2, and this processing is ended.

On the other hand, when the error response data is returned from the printer 2, the receipt response data and the journal response data in the response data are analyzed. If any of the data indicates an error content, an error has occurred in both the receipt printing unit 25 and the journal printing unit 26, and printing cannot be performed.
Control not to print until the abnormality is avoided.

On the other hand, when only the receipt response data is the data indicating the error content, the receipt printing unit 2
Since an error has occurred in 5 and printing is impossible, mask command data for a receipt mask is transmitted to the printer 2 via the communication interface 19. If only the journal response data is the data indicating the error content, the journal printing unit 26 has an abnormality and cannot print. Therefore, the mask command data for the journal mask is sent via the communication interface 19. Send to printer 2. (Mask command transmitting means)

Here, the mask command data for the receipt mask is one in which the receipt mask data of the message format shown in FIG. 4C is set and the journal mask data is reset. The mask command data is the journal mask data in the message format shown in FIG. 4 (c) in the set state and the receipt mask data in the reset state.

Further, the CPU 11 on the register body 1 side
Are program-controlled to periodically execute the interrupt processing shown in FIG. That is, the printer 2
Of at least one of the printing units determines whether there is an error,
If no error is present, this interrupt processing is terminated.

Printer 2 in response to the previous command transmission
Error response data is returned from the printer, and when at least one of the printing units is in an error state, the sense command data shown in FIG. 4B is transmitted to the printer 2 via the communication interface 19, and the response from the printer 2 is sent. Wait for Then, when the error response data is returned from the printer 2, at least one of the printing units is still in the error state, and this process is ended.

On the other hand, when the normal response data is returned, the abnormality of the printing section in the abnormal state is avoided, so the mask release command shown in FIG. Then, the process is transmitted to the printer 2 and this process is completed.

In this embodiment having the above-described structure, when necessary information about the sale item is input from the keyboard 4 in the register body 1, the sale data of the sale item is registered in the RAM 14 and the item name is also entered. The product sales information such as the sales amount is displayed on each of the display devices 6 and 7.
Further, the receipt of the product sales information and print data for journal printing are created and transmitted to the printer 2 side as print command data.

Then, in the printer 2, when both the receipt printing unit 25 and the journal printing unit 26 are normal, both the printing units 25 and 26 perform printing on the receipt and the journal. When the receipt and the journal are printed normally, the printer 2 returns the normal response data to the register body 1 side. Therefore, in the register body 1, the receipt and the journal are normally printed. Can be recognized.

On the other hand, for example, the journal printing unit 26
When a paper jam occurs during the printing operation of No. 2 and printing becomes impossible, the printer 2 returns error response data notifying the abnormality of the journal printing unit 26 to the register main body 1 side. As a result, the register main body 1 recognizes the abnormality of the journal printing unit 26, and immediately sends the mask command data for journal mask to the printer 2.

If the receipt printing unit 25 also becomes abnormal at the same time, the printer 2 stops its function until the abnormality is avoided. If only the receipt printing unit 25 becomes abnormal, mask command data for receipt mask is transmitted to the printer 2.

In the printer 2 which has received the mask command data for the journal mask, the journal mask flag 34 is set. In this state, when print data for receipt and journal printing is created again in the register body 1 and sent as print command data to the printer 2, the printer 2 controls only the printing operation of the receipt printing unit 25. Only the receipt printing is performed, and the journal printing unit 26 is controlled so as not to perform the printing operation because the journal mask data is in the set state. At this time, the printer 2 transmits to the register body 1 normal response data indicating that the printing is normally completed.

After that, when the paper jam abnormality in the journal printing unit 26 is avoided, the normal response data is returned from the printer 2 to the register body 1 side in response to the sense command data periodically transmitted from the register body 1. To be done. As a result, the mask release command data is transmitted from the register body 1 to the printer 2, and the journal mask flag 34 in the printer 2 is switched to the reset state.

After that, when print data for receipt and journal printing is created again in the register body 1 and is sent to the printer 2 side as print command data, printing is performed on the receipt and journal by both printing units 25 and 26. Be seen.

The register body 1 and the printer 2 described above
FIG. 11 shows the procedure for exchanging data between and. Note that FIG. 11A shows a procedure when the receipt printing unit 25 and the journal printing unit 26 are normal, and FIG. 11B shows an abnormality of a paper jam in the journal printing unit 26 in the middle and an abnormal state thereafter. Shows the procedure when is avoided.

As shown in the figure, when a paper jam occurs in the journal printing unit 26 and the error response data (R j jam) is returned from the printer 2, mask command data (M j) for journal mask is immediately transmitted. It However, the print data transmitted from the register body 1 in the subsequent print processing is
26, the print command data (P r3, j) created for receipt and journal printing as in the normal case.
3) is transmitted.

That is, in the register body 1, even if one of the printing units is in an abnormal state, it is not necessary to recreate the print data so that only the printing unit on the normal side is operated. , 26, the print data may be created in the same manner as in the normal case, so that the register body 1 is not burdened.

On the other hand, in the printer 2, each time the print command data is received, the states of the receipt mask flag 33 and the journal mask flag 34 are discriminated, and the printing section corresponding to the mask flag in the reset state is operated for printing to set the state. The printing unit corresponding to the mask flag in is controlled so as not to print. Therefore, even if one of the printing units is in an abnormal state, the printing unit on the normal side can continue the printing operation, so that efficient printing can be performed.

It should be noted that, in the above-described embodiment, whether the print heads for performing the receipt printing and the journal printing are independently provided, or one printing head is commonly used for printing, the present invention can be used. Application is possible.

Further, in the above embodiment, the mask command flag is reset in response to the mask release command from the register body 1, but it is reset in the printer in response to, for example, turning off the paper jam detection signal. You may do it.

Further, in the above embodiment, the abnormality of the printer side is notified to the electronic cash register body, and the mask flag is set by the printer side by the mask command from the electronic cash register body. However, the CPU of the printer is abnormal. Even if the corresponding mask command is set without notifying the electronic cash register main body when the above is detected, the same effect as the present invention can be obtained. In addition to this, it is needless to say that various modifications can be made without departing from the scope of the present invention.

[0056]

As described in detail above, according to the present invention, even if one of the printers capable of receipt printing and journal printing becomes incapable of printing, the electronic cash register main body is burdened. Therefore, it is possible to provide an electronic cash register that can continue the printing operation only on the normal side and can perform efficient printing.

[Brief description of drawings]

FIG. 1 is an external view of an embodiment of the present invention.

FIG. 2 is a block diagram of the embodiment.

FIG. 3 is a diagram showing main flag areas of a printer-side RAM in the embodiment.

FIG. 4 is a diagram showing a message format of command data exchanged between a register main body and a printer in the embodiment.

FIG. 5 is a flowchart showing a mask command data receiving process of the printer side CPU in the embodiment.

FIG. 6 is a flowchart showing a mask release command data reception process of the printer CPU in the embodiment.

FIG. 7 is a flowchart showing a sense command data receiving process of the printer side CPU in the embodiment.

FIG. 8 is a flowchart showing a print command data receiving process of the printer side CPU in the embodiment.

FIG. 9 is a flowchart showing a printing process of the register main body side CPU in the embodiment.

FIG. 10 is a flowchart showing interrupt processing of the register body side CPU in the embodiment.

FIG. 11 is a view showing a data transfer procedure between the register main body and the printer in the embodiment.

[Explanation of symbols]

1 ... Register body (electronic cash register body),
2 ... Printer (receipt / journal printer), 1
1, 21 ... CPU, 19, 27 ... communication interface,
31 ... Receipt error flag, 32 ... Journal error flag, 33 ... Receipt mask flag, 34 ... Journal mask flag

Claims (1)

Claims: 1. A receipt and journal printing printer having a control processor different from the electronic cash register main body is connected to the electronic cash register main body, and the electronic cash register main body is connected to the electronic cash register main body. In an electronic cash register for transmitting print data such as registered product sales information to the printer to perform receipt printing and journal printing, the printer stores receipt mask data according to an abnormality in receipt printing, and Mask data storage means for storing journal mask data in accordance with an abnormality in journal printing, and a state of the mask data stored by the mask data storage means upon receipt of receipt and journal print data via the communication interface. With mask state determination means When the discriminating unit discriminates the storage state of the receipt mask data, the printing operation of the receipt printing unit is not performed, and when the storage state of the journal mask data is discriminating, the printing operation of the journal printing unit is not performed. An electronic cash register comprising a control means.