JP2004358791A - Inkjet printer, printing system, control method of inkjet printer, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inkjet printer or the like which can carry out a function recovery process by a suitable timing and can also prevent wasteful ink consumption due to an interruption of the function recovery process, by controlling execution of the function recovery process including a cleaning process and a maintenance process at the host device side. <P>SOLUTION: A printer 2 which operates on the basis of control data from a POS terminal 1 is equipped with a function recovery process execution part 23 for executing the function recovery process for recovering the function of a printing head by a predetermined timing, and a permission command acquisition part 211 for acquiring a permission command which permits execution of the function recovery process from the POS terminal 1. The function recovery process execution part 23 executes the function recovery process on condition that the permission command is received. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an inkjet printer, a printing system, an inkjet printer control method, and a program used by connecting to a host device such as a host computer or a POS terminal.
[0002]
[Prior art]
2. Description of the Related Art In order to maintain good print quality, an ink jet printing apparatus that discharges ink from an ink jet head to perform printing (hereinafter, referred to as an “ink jet printer”) requires a function recovery process of the ink jet head. The function recovery process includes a cleaning process and a maintenance process. The former cleaning process mainly includes a suction process of suctioning ink from nozzles after capping a head for the purpose of discharging thickened ink and bubbles in an ink path. In addition, a wiping process for wiping ink adhered to the head surface with a rubber wiper, a rubbing process for wiping ink also adhered to the head surface using a sponge or the like is executed. For this reason, the processing takes a long time and is performed in a long cycle (the interval until the next processing is long). In the latter maintenance process, an idle suction process for sucking the ink in the cap ejected in the ejection process (flushing) performed during printing is performed, and compared to the cleaning process, a short time and a short cycle are used. Done in
[0003]
The function recovery processing including the cleaning processing and the maintenance processing is executed before printing and at regular timing or when a predetermined condition is satisfied. Once started, it must be executed until it is completed. If it is interrupted on the way, good print quality cannot be ensured. Therefore, when the process is interrupted, it is treated as if the process was not executed, and is executed after waiting for an opportunity to perform the process again.
[0004]
By the way, in a printing system using such an ink-jet printer connected to a host device such as a host computer or a POS terminal, in addition to the time when the power of the printer is turned on, based on a reset signal generated at the time of turning on the power of the host device. , A function recovery process is being performed.
[0005]
FIG. 8 is a timing chart showing a printer control operation in a conventional general printing system. For example, when the host device is started up at the same time when the power of the printer is turned on, a reset signal may be issued from the host device to the printer a plurality of times as shown in FIG. (3 times in the illustrated example). Actually, a reset signal is output not only at the time of power-on reset of the host device but also at the time of starting an OS (operating system), at the time of starting an application, and at the time of starting printing of an application. For ease of explanation, the case where the function recovery processing is executed only by the power-on reset signal of the host device is shown. As described above, the printer is reset a plurality of times when the power is turned on, and as a result, several interruptions occur during the function recovery processing. For this reason, the suction process is repeated every interruption, and the ink is wasted.
[0006]
In order to avoid the problem at the time of turning on the power, as shown in FIG. 9, after the power of the printer is turned on, even if a reset signal is received from the host device until a predetermined time T elapses, cleaning processing, maintenance processing, and the like are performed. By performing the function recovery process (cleaning process) after a lapse of a predetermined time without performing the function recovery process described above, the start of the function recovery process is delayed as compared with the example illustrated in FIG. ΔT) However, a technique has been disclosed in which the interruption of the function recovery processing is eliminated to avoid wasteful consumption of ink (for example, see Patent Document 1).
[0007]
[Patent Document 1]
JP-A-2000-103140 (FIG. 7, etc.)
[0008]
[Problems to be solved by the invention]
However, the method described in Patent Literature 1 has no effect unless the arrival time of the reset signal from the host device is constant, and if there is a difference between the power-on times of the host device and the printer, the arrival time of the reset signal is reduced. The effect described above is not guaranteed because it is uncertain. In addition, the printer is not always turned on first, and when the host device is turned on first and the printer is turned on later, the reset signal is input differently as described above. In many cases, the effect cannot be expected.
[0009]
In addition, as described above, the inkjet printer performs the cleaning process and the maintenance process not only at the time of turning on the power but also during the operation. Therefore, if a reset signal is received from the computer during this time, the cleaning process is performed in the same manner as described above. Problems such as interruption occur. Further, since the cleaning process and the maintenance process during the operation described above are selectively executed in consideration of time and control parameters being managed, the execution timing is limited to a small gap where continuous printing is performed. In the case of this time zone, there is a problem that the user feels that printing has been interrupted due to cleaning or maintenance processing during printing.
[0010]
FIG. 10 is a timing chart showing a printer control operation for one customer in a printing system (POS system) using a POS terminal as a host device. As described above, in the case of the printing apparatus used in the POS system, in addition to the processing gap for each customer (period S in the drawing), the waiting time for inserting a cut sheet (check) during the processing for one customer. Also, there is a possibility that the function recovery processing may be performed between some roll paper printing (receipt and receipt printing) operations (period L in the drawing). However, during processing for one customer, it is often not possible to secure sufficient time to execute the function recovery processing, so that the customer may be made to wait, leading to a reduction in work efficiency.
[0011]
The present invention has been made in view of the above problems, and the function recovery processing including the cleaning processing and the maintenance processing is controlled on the host device side, so that the function recovery processing can be performed at an appropriate timing. In addition, an object of the present invention is to provide an inkjet printer, a printing system, a control method of the inkjet printer, and a program that can prevent wasteful consumption of ink due to interruption of the function recovery processing.
[0012]
[Means for Solving the Problems]
An ink jet printer according to the present invention is a printer which operates based on control data from a host device. The function recovery processing means for executing a function recovery process for recovering the function of the print head at a predetermined timing. And permission command receiving means for receiving a permission command for permitting execution of the function recovery processing, wherein the function recovery processing means executes the function recovery processing on condition that the permission command is received.
[0013]
Further, the control method of the ink jet printer of the present invention can perform a function recovery process for recovering the function of the print head at a predetermined timing and operate the ink jet printer based on control data from the host device. A permission command transmitting step of transmitting a permission command for permitting execution of the function recovery processing to the inkjet printer from the host device; and a function recovery processing step of causing the inkjet printer to perform the function recovery processing based on the transmission of the permission command. , Is provided.
[0014]
According to these configurations, the inkjet printer executes the function recovery processing on condition that the permission command that permits the execution of the function recovery processing is received from the host device. In other words, the function recovery processing is performed until the permission command is received. Since it is not executed, the function recovery processing is not executed by the reset signal generated when the host device is started. Therefore, wasteful consumption of ink due to interruption of the function recovery processing can be prevented.
[0015]
In this case, it is preferable that the function recovery processing means executes the function recovery processing when the permission command is received.
[0016]
In this case, in the function recovery processing step, it is preferable to execute the function recovery processing at the time of transmitting the permission command.
[0017]
According to these configurations, the ink jet printer performs the function recovery process when receiving the permission command from the host device. Therefore, the host device does not affect the print process (the print start is performed by performing the function recovery process). It is possible to cause the inkjet printer to perform the function recovery processing at an appropriate timing so that the function recovery processing is not delayed.
[0018]
In these cases, one of the host instruction mode for executing the function recovery processing based on the permission command transmitted from the host device and the printer determination mode for executing the function recovery processing at a predetermined timing regardless of the permission command is set. It is preferable that the apparatus further includes a function recovery processing mode setting unit that performs the function recovery processing according to the set function recovery processing mode.
[0019]
In this case, a host instruction mode for executing the function recovery process based on the transmission of the permission command from the host device, and a printer determination mode for executing the function recovery process at a predetermined timing regardless of the transmission of the permission command. It is preferable that the method further includes a function recovery processing mode setting step of setting any one, and in the function recovery processing step, the function recovery processing is executed according to the set function recovery processing mode.
[0020]
According to these configurations, the ink jet printer performs the host instruction mode for executing the function recovery processing based on the permission command transmitted from the host device, and the printer determination to execute the function recovery processing at a predetermined timing regardless of the permission command. Since the printer has two modes, even if the host device (or an application or a printer driver incorporated in the host device) does not have the permission command transmission function, the function can be set by setting the inkjet printer in the printer determination mode. It is possible to avoid a state where the recovery processing is not executed. Therefore, regardless of whether or not the host device can transmit the permission command, the inkjet printer can maintain the print quality.
[0021]
In this case, the function recovery processing mode setting means is preferably configured to be switchable based on control data or a command from the host device.
[0022]
In this case, in the function recovery processing mode setting step, it is preferable to set the function recovery processing mode based on an operation of the host device.
[0023]
According to these configurations, it is possible to easily set the function recovery processing mode on the host device side, for example, when updating the system. In this case, the function recovery processing mode setting means can be constituted by a memory switch.
[0024]
In these cases, the function recovery processing means executes a plurality of types of function recovery processing, and the permission command receiving means may receive any one of a plurality of types of permission commands corresponding to the plurality of types of function recovery processing. preferable.
[0025]
In these cases, the function recovery processing includes a plurality of types of function recovery processing. In the permission command transmission step, any one of a plurality of types of permission commands corresponding to the plurality of types of function recovery processing is transmitted. In the function recovery processing step, it is preferable to execute a function recovery processing according to the type of the permission command.
[0026]
According to these configurations, the host device transmits any one of a plurality of types of permission commands corresponding to the plurality of types of function recovery processing. Various types of function recovery processing can be performed.
[0027]
In these cases, the apparatus further comprises a prohibition command receiving means for receiving a prohibition command for prohibiting the execution of the function recovery processing from the host device. Preferably, no processing is performed.
[0028]
In these cases, the apparatus further comprises a prohibition command transmission step of transmitting a prohibition command for prohibiting execution of the function recovery processing from the host device. In the function recovery processing step, after the prohibition command is received, until the permission command is received. It is preferable not to execute the function recovery processing.
[0029]
According to these configurations, the host device can specify the period during which the function recovery process is not performed by the inkjet printer by transmitting the prohibition command. Therefore, the host device transmits a prohibition command when it determines that there is a possibility of affecting print processing, and transmits a permission command when it determines that it does not affect print processing. The function recovery processing can be executed at an appropriate timing.
[0030]
In these cases, the function recovery processing means preferably executes the function recovery processing on condition that specific print data or a specific command is received instead of receiving the permission command.
[0031]
In these cases, in the function recovery processing step, it is preferable to execute the function recovery processing based on transmission of specific print data or a specific command instead of the permission command.
[0032]
According to these configurations, the inkjet printer performs the function recovery processing based on the reception of the specific print data or the specific command. Therefore, even if the host device does not support the host instruction mode (the permission command transmission function). ), The print quality of the inkjet printer can be maintained.
[0033]
A printing system according to the present invention includes the inkjet printer according to any one of the above, and a host device, the host device includes an authorization command transmission unit that transmits an authorization command to the inkjet printer, and the authorization command transmission unit includes: A permission command is transmitted at the time of starting and / or terminating an application incorporated in the host device.
[0034]
According to this configuration, it is unlikely that printing will be performed immediately after the application incorporated in the host device is activated, and therefore, the function recovery processing can be executed without affecting the printing processing. Further, since it is not assumed that printing is performed at the end of the application, the function recovery processing can be similarly executed without affecting the print processing. Furthermore, when the application is started and / or terminated, the permission command is transmitted. Therefore, even if the application itself does not support the function of transmitting the permission command, the inkjet printer is permitted to perform the function recovery processing. be able to.
[0035]
In this case, it is preferable that the host device is a POS terminal that performs a payment process based on the input of the product information by the operator, and that the permission command transmitting unit transmits the permission command when the product information is input.
[0036]
According to this configuration, when the merchandise information is input by the operator at the time of using the POS terminal, usually a plurality of merchandise information is input, and the printing is not performed during that time, so that the printing process is not affected. Function recovery processing can be executed.
[0037]
In these cases, it is preferable that the POS terminal can perform a settlement process using a credit card, and that the permission command transmitting means transmits a permission command when the information reading of the credit card is completed.
[0038]
According to this configuration, when the reading of the credit card information is completed at the time of using the POS terminal, the authentication processing of the credit card is normally performed, and the printing is not performed during that time. Function recovery processing can be executed without any problem.
[0039]
In these cases, it is preferable that the POS terminal can perform a checkout process by a check, and that the permission command transmitting means transmits a permission command when printing on the check is completed.
[0040]
According to this configuration, when printing on the check is completed at the time of using the POS terminal, the check is usually signed by the customer, and printing is not performed during that time. Function recovery processing can be executed without any problem.
[0041]
In these cases, it is preferable that the permission command transmitting unit adds the permission command to the end of the print data to be transmitted to the inkjet printer and transmits the print data.
[0042]
According to this configuration, when the POS terminal is used, it is unlikely that printing will be restarted immediately after printing is completed, so that the function recovery processing can be executed without affecting the printing processing.
[0043]
In these cases, it is preferable that the permission command transmitting means transmits the permission command when the POS terminal goes into a sleep state and / or when the POS terminal goes into an operation state from the sleep state.
[0044]
According to this configuration, when using the POS terminal, when the POS terminal goes into a sleep state (for example, when an operation indicating replacement of an operator is performed), printing is not performed naturally. The function recovery processing can be executed without affecting. Also, when the operation state changes from the halt state to the operation state (for example, when an operation indicating registration of an operator is performed), it is unlikely that printing will be performed immediately after that. Function recovery processing can be executed. Further, when the operation state changes from the halt state to the operation state, it is considered that the ink in the nozzles is thickened, so that the print quality can be maintained by performing the function recovery processing.
[0045]
In this case, the POS terminal inputs merchandise information by reading with the barcode scanner, and when the barcode scanner is stored in a predetermined storage position, it is regarded as inactive and when the barcode scanner is removed from the storage position. It is preferable to consider that the state has changed from the rest state to the operation state.
[0046]
According to this configuration, the fact that the barcode scanner is stored in the predetermined storage position means that the system is not used for a while (usually, it is considered that the barcode scanner is placed in the storage position during the settlement process). Conversely, when the user is removed from the storage position, it means the start of the settlement process, so that the function recovery process can be executed at an appropriate timing.
[0047]
According to a second aspect of the invention, there is provided a program for executing each of the steps in the inkjet printer control method according to any one of the above aspects.
[0048]
According to this configuration, it is possible to provide a program capable of performing the function recovery processing including the cleaning processing and the maintenance processing at an appropriate timing, and preventing wasteful consumption of ink due to interruption of the function recovery processing. Can be.
[0049]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an inkjet printer, a printing system, an inkjet printer control method, and a program according to the present invention will be described in detail with reference to the drawings in the order of [first embodiment] and [second embodiment]. In each of the embodiments, an inkjet printer, a printing system, and a control method of the inkjet printer will be described. However, the program according to the present invention is a program for realizing as a component included in a POS terminal (host device). Therefore, description of the program is omitted.
[0050]
[First Embodiment]
FIG. 1 is a configuration diagram illustrating an overall block configuration of a printing system PS according to the first embodiment of the present invention. The printing system PS according to the present embodiment transmits control data to a printer 2 described later and controls the POS terminal 1 (host device), and a function including a cleaning process and a maintenance process in response to a command from the POS terminal 1. And an inkjet printer 2 (inkjet printer) that performs a recovery process.
[0051]
Here, the cleaning process refers to a process including ejection of ink from a print head (not shown) and / or suction of ink from the print head, and the maintenance process does not involve consumption of ink and is performed more than the cleaning process. The processing can be executed in a short time, but the specific processing contents of the cleaning processing and the maintenance processing will be described later.
[0052]
The POS terminal 1 includes an OS (Operating System) 5 for controlling the entire system, an application 6 executed on the OS 5, and information from various input devices (keyboard 14, card reader 15, barcode scanner 16, etc.) to be described later. A status monitoring unit 12 for monitoring the input and the status of the printer 2; a printer driver 13 for ensuring and controlling the consistency with the printer 2; a keyboard 14 for an operator to input product information; A card reader 15 for reading card information, a barcode scanner 16 for reading a barcode affixed or printed on a product, a display 17 for displaying input information, processing results, and the like; And an I / F 19 serving as an interface.
[0053]
The printer driver 13 includes a function recovery processing mode selection unit 131 for selecting a function recovery processing mode (described later) of the printer 2, and selects (sets) a function recovery processing mode at the time of initial setting or system update. ).
[0054]
The application 6 includes a permission command transmitting unit 11 that transmits a permission command for permitting the printer 2 to execute the above-described function recovery processing. It consists of a program for performing function recovery processing.
[0055]
The status monitoring unit 12 monitors power-on of the printer 2, input of product information by the keyboard 14 and the barcode scanner 16, reading of credit card information by the card reader 15, and the like. 11 transmits a permission command to the printer 2. The permission command transmitting unit 11 also transmits a permission command when the application is activated and / or when the application is terminated.
[0056]
The permission command transmitting unit 11 transmits a preset type of permission command via the printer driver 13 based on the monitoring result of the state monitoring unit 12. As the types of permission commands, there are a first permission command, a second permission command, and a third permission command in order from the lightest (the one that can be completed in a short time), and one of these permission commands is transmitted ( The details of each permission command will be described later). Note that the type of the permission command to be transmitted may be changeable by an operator setting. Alternatively, the same type of permission command may be transmitted without being changed according to the monitoring result of the state monitoring unit 12.
[0057]
On the other hand, the printer 2 performs printing on a receipt 31 or a check 32 described later based on print data from the POS terminal 1 and has a memory such as a CPU, a ROM and a RAM, and has control data from the POS terminal 1. (Including the above-mentioned permission command), an I / F 20 for transmitting the status information of the printer 2 to the POS terminal 1, a control unit 21 for controlling the entire printer 2 based on the control data, and an inkjet head. And a function recovery process execution unit 23 that executes a function recovery process including a cleaning process and a maintenance process.
[0058]
The control unit 21 acquires the permission command transmitted from the POS terminal 1, acquires the permission command acquisition unit 211 that stores the permission command, and acquires information on the function recovery processing mode selected on the POS terminal 1 side, and sets the mode setting. A function recovery processing mode setting unit 212 for performing the function recovery processing in the function recovery processing execution unit 23 according to the set function recovery processing mode.
[0059]
The function recovery processing mode setting section 212 executes a host instruction mode for executing the function recovery processing based on the permission command transmitted from the POS terminal 1 (on condition of the permission command), and a predetermined timing regardless of the reception of the permission command. When one of the printer determination mode for executing the function recovery processing is set and the host instruction mode is set, the function recovery processing is not executed unless the permission command is acquired by the permission command acquisition unit 211. I have. The function recovery processing mode setting unit 212 is configured by a memory switch that is switched by control data from the POS terminal 1.
[0060]
Here, specific processing of the function recovery processing (cleaning processing and maintenance processing) will be described. The above-mentioned cleaning process mainly includes a suction process of sucking ink from nozzles after capping the print head for the purpose of discharging the thickened ink and bubbles in the ink path, and wiping ink adhered to the head surface with a rubber wiper. It includes a wiping process, a rubbing process for wiping ink also attached to the head surface using a sponge, a flushing process (discharge process) for idly discharging a predetermined amount of ink to a cap or a non-printing area, and the like. In comparison, it means an operation requiring a long period and a long time. The flushing process is executed once every several seconds even during the printing process other than when the permission command is received. However, since it can be executed in a short time, the print processing is not affected.
[0061]
The cleaning process includes heavy cleaning performed when the printer 2 is first started, when a cartridge is replaced, and when a predetermined period has elapsed since the previous cleaning (eg, two to three days). There are a cleaning process and a light cleaning process to be executed in addition to the above, and the former heavy cleaning process is performed by combining suction, wiping, and rubbing. In the latter light cleaning process, a suction process, a wiping process, a rubbing process, and the like are independently performed (the respective processes may be performed in a short time and may be combined). When the printer 2 is set to the host instruction mode, a light cleaning process is executed on condition that the second permission command is received from the POS terminal 1, and a heavy cleaning process is performed on condition that the third permission command is received. Execute
[0062]
Further, the maintenance process includes an idle suction process for sucking ink in the cap ejected in the flushing process performed during printing, and the like, and has a shorter cycle and a shorter time than the cleaning process. This means the operation to be performed. Then, when the printer 2 is set to the host instruction mode, the maintenance process is executed on condition that the first permission command is received from the POS terminal 1.
[0063]
The time required for the cleaning process is about 20 seconds for a heavy cleaning process and about 10 seconds for a light cleaning process. In addition, the maintenance process requires a time of about 10 seconds or less. Note that the cleaning process and the maintenance process are not limited to the above-described various processes, and may be performed in combination with various maintenance processes for maintaining a good printing state. In the cleaning process, a design change such as a combination of the idle suction process and a rubbing process that can be performed in a relatively short time in the maintenance process is also possible.
[0064]
Next, the device configurations of the POS terminal 1 and the printer 2 will be described with reference to FIG. As shown in the figure, the POS terminal 1 has a keyboard 14 on which an operator inputs product information on the front upper surface of a main body case 18 and an operator display 17a on the right side of the rear portion where the operator checks input information. A cash drawer 18a is housed in the main body case 18. A bar code scanner 16 for reading a bar code attached to a product is provided on the right side of the main body case 18, and a card reader 15 (card reader) for reading a credit card presented by a customer is provided on the right side of the keyboard 14. Slot) is formed. Further, on the back side of the main body case 18, a customer display 17b for a customer to check product information and the like is arranged.
[0065]
On the other hand, the printer 2 is connected to the POS terminal 1 via a connector (not shown) and includes a resin outer cover 25. An insertion slot 26 for manually inserting a check 32 in a substantially horizontal direction is formed on the front surface thereof, and a discharge opening 27 for discharging the check 32 is formed on an upper surface thereof. It should be noted that slip paper (slip paper, variation) or the like is also inserted from the insertion slot 26 so that printing can be performed on the slip paper. Further, the printed cut sheet is discharged from the insertion slot 26. A receipt outlet 28 is formed at the rear of the outlet 27, and a cutter (not shown) for cutting the printed receipt 31 faces near the receipt outlet 28.
[0066]
Although not shown, a mechanism for reading magnetic information (MICR code) pre-printed on the check 32, a check table writing / printing mechanism (which also functions as a cut-sheet paper printing mechanism), and a check endorsement printing are internally shown. A mechanism and a receipt printing mechanism are incorporated, and the receipt 31 and the check 32 are configured to print with the same head. The receipt 31 and the check 32 may be printed by different print heads, or an MICR code reading mechanism may be separately provided. Also, the type in which the POS terminal 1 and the printer 2 are mechanically separated has been described as an example, but they may be integrated.
[0067]
Next, the operation of the printing system PS according to the first embodiment of the present invention will be described with reference to the timing chart of FIG. FIG. 3 shows a case where the function recovery processing mode of the printer 2 is set to the host instruction mode (mode for executing the function recovery processing in accordance with an instruction from the POS terminal 1). As shown here, when the POS terminal 1 is activated, the POS terminal 1 outputs a reset signal a plurality of times (here, three times) as before, but the printer 2 is set to the host instruction mode. Depending on the reset signal, the function recovery processing is not executed (however, the mechanism is initialized).
[0068]
That is, as shown in the figure, by the selection of the function recovery processing mode by the function recovery processing mode selection unit 131, when the POS terminal 1 is activated, the initialization of the mechanism that is repeated every time the reset signal is transmitted is performed. The automatic function recovery processing (see FIG. 8) by the printer 2 is limited to only the initialization of the mechanism. In addition, in the operation example shown in the figure, the printer 2 executes the function recovery processing by the transmitted permission command after the generation of the reset signal at the time of starting the application. In addition, the process is performed at a timing that does not affect the printing process in the printer 2 based on the monitoring result of the status monitoring unit 12.
[0069]
Therefore, specific examples of the timing at which the permission command is transmitted from the POS terminal 1 to the printer 2 will be described with some examples.
(1) When the printer 2 is started for the first time, when the cartridge is replaced, and when the printer 2 is started when a predetermined period has elapsed since the previous cleaning execution. In this case, a third permission command is transmitted, and a heavy cleaning process of about 20 seconds is permitted.
(2) When the POS terminal 1 (print system PS) is activated. In this case, a third permission command is transmitted to permit heavy cleaning processing.
(3) At the time of inputting product information (at the time of reading a barcode by the barcode scanner 16). In this case, the first permission command is transmitted to permit the maintenance process.
(4) When printing the receipt 31 is completed. However, in the case of payment by a credit card, the printing of the receipt 31, which is a credit card statement, is completed. At the end of printing the receipt 31 in the case of payment by check. In this case, the second permission command is transmitted by using the time of the customer's statement of use and signature on the check, and a light cleaning process of about 10 seconds is permitted.
(5) When printing a receipt 31 as a receipt in addition to the receipt 31 on which the settlement amount is printed, at the end of printing the receipt. In this case, the first permission command is transmitted to permit the maintenance process.
(6) In the case of payment by credit card, at the end of reading the credit card. In this case, a second permission command is transmitted, and a light cleaning process of about 10 seconds is permitted.
(7) When the barcode scanner 17 is stored in a predetermined storage position (not shown). In this case, a third permission command is transmitted to permit heavy cleaning processing.
(8) In addition, when the POS terminal goes into a sleep state. Or when going from hibernation to working. In this case, a second permission command or a third permission command is transmitted to permit light cleaning processing or heavy cleaning processing.
[0070]
In the case of (7), the determination that the barcode scanner 17 is stored at the predetermined storage position may be made by providing a barcode at the storage position and reading the barcode with the barcode scanner 17. . Alternatively, a detection sensor may be attached to the storage position, and when the detection sensor detects the barcode scanner 17, it may be determined that the barcode scanner 17 has been stored at the predetermined storage position.
[0071]
Here, the processing of the printing system PS when the printer 2 is set to the host instruction mode will be described with reference to the flowcharts of FIGS. 4 shows a case of payment by cash (case of cash settlement), FIG. 5 shows a case of payment by credit card (case of card payment), and FIG. 6 shows a case of payment by check (case of check payment). Each is shown. Further, for simplicity, the notation of the operation of the operator operating the POS terminal 1 (e), the operation of the printer 2 (p), and the operation of the POS terminal 1 (P) are separately illustrated and described below. In the description, the subject of the operation is added in parentheses to the reference number. In the drawing, the period during which the function recovery process is performed is indicated by solid arrows, and arbitrary points common to FIGS. 4 to 6 are indicated by Ta and Tb.
[0072]
First, processing in the case of a cash decision will be described with reference to FIG. The operator of the POS terminal 1 inputs product information. More specifically, the barcode printed or affixed to the product purchased by the customer is scanned by the barcode scanner 16, and finally the subtotal key on the keyboard 14 is pressed (step S1 (E)). Next, the operator of the POS terminal 1 selects a payment method according to a customer's application or the like, and presses a corresponding key on the keyboard 14 (step S2 (E)). Hereinafter, according to the payment method, the operation flow branches into three small flows (step S3). If the payment method is cash, the process proceeds to step S4. If the payment method is a credit card, the process proceeds to step S21 (see FIG. 5). If the payment method is a check, the process proceeds to step S31 (see FIG. 6).
[0073]
When the payment method is cash, first, cash equivalent to the price is received from the customer, and the amount is input using the keyboard 14 (step S4 (e)). Then, based on the input of the amount, the receipt (specification) 31 is printed by the printer 2 (step S5 (p)). Further, while the process of step S5 is being performed, the cash drawer 18a of the POS terminal 1 is opened (step S11 (P)), and the received cash is stored in the cash drawer 18a, and the operator can send the cash to the customer. The change to be handed over is prepared (step S12 (e)).
[0074]
When the printing of the receipt 31 is completed, the operator hands the change and the receipt 31 to the customer (step S6 (E)). Hereinafter, the operation flow is divided into two types of small flows depending on whether or not there is a request for issuing a bill from the customer (step S7). If there is no request for issuing a bill from the customer, the process is terminated as it is.
[0075]
On the other hand, when there is a bill issuing request from the customer, the operator of the POS terminal 1 presses the receipt issuing key on the keyboard 14 (step S8 (E)). Based on the depression of the receipt issuing key, a receipt (receipt 31) is printed by the printer 2 (step S9 (p)), and the receipt is handed to the customer (step S10 (e)), and the process is terminated. I do.
[0076]
When the status monitoring unit 12 (see FIG. 1) detects the input of the product information in step S1 (t1), the POS terminal 1 transmits the permission command by the permission command transmission unit 11, and sends the function command to the printer 2. Perform recovery processing. As described above, since the first permission command is set to be transmitted when the product information is input, the printer 2 performs the maintenance process based on the reception of the first permission command. The maintenance processing is set on the assumption that the maintenance processing is completed by the receipt printing in step S5. That is, if the cleaning process that requires a long time is performed here, if the number of input of the product information is small, as a result, the printing is in a waiting state. Therefore, hereinafter, it is assumed that the type of the preset permission command is set within a range that does not affect the printing process, and the function recovery process of the set type is completed within the execution period indicated by the arrow in the figure. It will be described as what is done.
[0077]
On the other hand, the POS terminal 1 transmits a permission command to the printer 2 when the printing of the receipt in step S9 is completed, other than when the product information is input. However, also in this case, the first permission command is transmitted to permit the maintenance operation. Here, the maintenance process is permitted in anticipation of the time from the operation of giving the receipt to the customer until the operation of the printer 2 is started by the process of the next customer.
[0078]
Next, processing in the case of a credit card decision will be described with reference to FIG. The operator of the POS terminal 1 receives the credit card from the customer, scans the card reader 15 and reads the recorded contents (step S21 (E)). Next, the control unit (not shown) of the POS terminal 1 authenticates the credit card based on the read content (step S22 (P)). Next, the receipt 31 and the credit card usage statement are printed by the printer 2 (step S23 (P)). It should be noted that the credit card usage statement is printed separately for a customer copy, a store copy, and a credit card company. During this printing, the cash drawer 18a of the POS terminal 1 is opened (step S28 (P)).
[0079]
Next, the operator of the POS terminal 1 obtains the customer's signature on the credit card use statement for the card company (step S24 (e)). Further, the operator of the POS terminal 1 authenticates the credit card with the customer's signature and returns the card (step S25 (E)). Further, the operator of the POS terminal 1 gives the printed receipt 31 and the credit card usage statement (for customer's copy) to the customer (step S26 (E)). Finally, the operator of the POS terminal 1 stores the card usage details (for the store copy and for the credit card company) (step S27 (E)).
[0080]
In step S21, at the time point when the credit card scan is completed (t4), the POS terminal 1 transmits a second permission command to the printer 2, and permits the light cleaning process. Further, at the time point (t5) when the printing of the receipt 31 in step 23 is completed, the second permission command is transmitted to the printer 2, and the light cleaning process is permitted. If the maintenance process executed from the start of the input of the product information (t1) is not completed, the light cleaning process at the time when the credit card scan is completed (t4) may be omitted.
[0081]
Next, processing in the case of a check approval will be described with reference to FIG. The operator of the POS terminal 1 receives the check 32 from the customer and inserts it into the insertion slot 26 (see FIG. 2) of the printer 2 (step S31 (E)). As a result, the printer 2 performs character recognition of the magnetic information (MICR code) printed in advance on the check 32 (step S32 (P)). In addition, the printer 2 performs front-side printing on the front side of the check 32 (Step S33 (P)), and subsequently performs endorsement printing on the back side of the check 322 (Step S34 (P)). However, here, a case is described in which the printer 2 can collectively process MICR character recognition, check table printing, and check endorsement printing.
[0082]
Next, the receipt 31 (specification) is printed by the printer 2 based on the input of the product information (Step 1 in FIG. 4) (Step S35 (P)). During the receipt printing, the cash drawer 18a of the POS terminal 1 is opened (step S39 (P)). Then, the operator of the POS terminal 1 hands the printed check to the customer and obtains the customer's signature (step S36 (E)). Thereafter, the operator of the POS terminal 1 hands the printed receipt 31 to the customer (step S37 (E)) and stores the check 32 in the cash drawer of the POS terminal 1 (Step S38 (E)).
[0083]
In step S35, at the time point when printing of the receipt 31 is completed (t7), the POS terminal 1 transmits a second permission command to the printer 2, and permits the light cleaning process.
[0084]
The case where the printer 2 is set to the host instruction mode has been described above. However, when the printer 2 is set to the printer determination mode, even if the permission command is transmitted from the POS terminal 1 at the above timing, the function is not performed. Do not perform recovery processing. That is, in this case, the function recovery processing (cleaning processing and / or maintenance processing) is executed based on various control parameters managed by the printer 2. By providing the printer determination mode, the POS terminal 1 (or the application 6 or the printer driver 13 incorporated therein) does not support the permission command transmission function (for example, when only the printer 2 is replaced). ), It is possible to avoid a state in which the function recovery processing is not executed.
[0085]
As described above, according to the first embodiment of the present invention, the printer 2 executes the function recovery processing when receiving the permission command from the POS terminal 1, so that the POS terminal 1 does not affect the printing processing. When it is determined that the start of printing is not delayed by the execution of the function recovery processing, the printer 2 can be caused to perform the function recovery processing. Therefore, the function recovery process is automatically executed, and there is no such a problem that the customer waits for the receipt 31 to be issued (waits for printing).
[0086]
Note that the maintenance process is executed at the start of the product information input (t1). However, in the case of check payment and when the receipt 31 and the check 32 are printed by different print heads, the dotted line in the drawing is used. Since the unit is in the executable period of the function recovery process (until the start of receipt printing in step 35), a light cleaning process may be executed (however, the printing mechanism side of the receipt 31). In this case (when printing the receipt 31 and the check 32 with different print heads), a light cleaning process may be executed when the printing on the check 32 is completed (S34). According to this configuration, the function recovery process can be performed using the time of the customer's signature after the check is printed, so that the print process is not affected.
[0087]
In the above embodiment, the printer 2 executes the function recovery processing according to the type of the permission command when receiving the permission command. After receiving the permission command from the printer 2 (see FIG. 3), the function recovery processing may be performed at a predetermined timing determined by the printer 2. That is, it is assumed that the printer 2 does not perform the function recovery processing based on the reset signal at the time of starting the POS terminal, and the function recovery processing in the printer 2 after once transmitting the permission command is left to the judgment of the printer 2. Is also good.
[0088]
Further, the printer 2 may be configured to execute the function recovery processing based on reception of specific print data (such as the first print data after the application is started) or a specific command, instead of receiving the permission command. According to this configuration, the print quality of the printer 2 can be maintained even if the host device does not support the host instruction mode (even if it does not have a function of transmitting a permission command). In this case, the specific command is not limited to one type, and a plurality of types of commands can be caused to function as specific commands.
[0089]
Further, even in the configuration in which the permission command is transmitted only once when the application 6 is activated, it is preferable that the printer 2 executes the function recovery processing when the printer 2 receives the permission command. According to this configuration, print quality can be maintained even when the period from when the printer 2 is activated to when the permission command is received is long.
[0090]
Further, in the above embodiment, the permission command is transmitted based on the monitoring result of the status monitoring unit 12, but the permission command is added to the end of the print data for printing on the receipt 31 or the check 32. It may be transmitted to the printer 2. According to this configuration, in the printing system PS using the POS terminal 1, it is difficult to assume that printing will be restarted immediately after printing is completed. Without giving it, it is possible to cause the printer 2 to execute the function recovery processing.
[0091]
Further, in the above-described embodiment, the function recovery processing mode setting unit 212 (see FIG. 1) of the printer 2 is configured by a memory switch, and the mode can be switched by operating the POS terminal 1. The mode may be switched by transmission. Further, the function recovery processing mode setting unit 212 can be configured by a dip switch.
[0092]
[Second embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to FIG. In the above embodiment, the printer 2 executes the function recovery processing by transmitting the permission command from the POS terminal 1. However, in the present embodiment, the prohibition for not executing the function recovery processing in addition to the permission command is performed. A command is transmitted, and control is performed so that the printer 2 executes a function recovery process from the time when the permission command is transmitted to the time when the prohibition command is transmitted. Therefore, a description will be given with reference to a timing chart of FIG. 7 focusing on points different from the above-described embodiment.
[0093]
First, in the printing system PS according to the present embodiment, the status monitoring unit 12 monitors the status of the input devices (the keyboard 14, the card reader 15, and the barcode scanner 16) of the POS terminal 1 in addition to the status of the printer 2. Then, when it is detected that the processing of the customer has been started, a prohibition command is transmitted to the printer 2 (NC). The start of the customer's process can be detected by the start of input of product information by the barcode scanner 16 (t1: see FIG. 4).
[0094]
Then, when it is detected that the processing of the customer has been completed, a permission command (here, a first permission command or a second permission command) is transmitted to the printer 2 to permit a light cleaning process or a maintenance process (C). ). The end of the customer process can be detected by, for example, the end of printing the receipt (t2). If the customer does not request a receipt, the receipt can be detected by the operator pressing a predetermined key on the keyboard 14 or the like.
[0095]
As described above, in the transaction for one customer, the function recovery processing is prohibited, and thereafter, the function recovery processing is executed between the processing of the customer and the next customer. When the customer process is started, a first permission command for permitting a maintenance process that can be executed in less than 10 seconds may be transmitted instead of the prohibition command. According to this configuration, when the customer starts the process, the maintenance process that can be completed in a short time is executed, so that the print quality can be maintained without making the customer wait.
[0096]
Here, when the POS terminal 1 is in the sleep state for a long time (after the processing period of the customer-3 in the illustrated case), the POS terminal 1 transmits a third permission command to the printer 2 to permit heavy cleaning processing. The suspension of the POS terminal 1 for a while can be detected, for example, by storing the barcode scanner 17 in a predetermined storage position (not shown). Further, it is also possible to determine that the apparatus is in the halt state by pressing a predetermined key of the keyboard 14 which means replacement of the operator.
[0097]
As described above, according to the second embodiment of the present invention, the POS terminal 1 can specify the period during which the function recovery process is not performed on the printer 2 by transmitting the prohibition command. Therefore, when the POS terminal 1 determines that there is a possibility of affecting print processing, the POS terminal 1 transmits a prohibition command, and transmits a permission command when it determines that print processing is not affected. The function recovery processing can be executed at more appropriate timing.
[0098]
In the case of the present embodiment, the prohibition command is transmitted to the printer 2 not only when the POS terminal 1 is activated but also when the POS terminal 1 is activated, thereby executing the function recovery processing based on the reset signal when the POS device 1 is activated. (Interruption) may be avoided. In this case, it is preferable that the printer driver 13 includes the permission command transmission unit 11 instead of the application 6. According to this configuration, execution of the function recovery processing by the printer 2 can be reliably prohibited.
[0099]
In the above example, the case where both the permission command and the prohibition command are transmitted from the POS terminal 1 has been described as an example, but it is also possible to transmit only the prohibition command. That is, in this case, it is preferable that the prohibition command is configured to prohibit execution of the function recovery process for a predetermined period. That is, after receiving the prohibition command, the printer 2 cannot execute the function recovery process for, for example, three minutes, and then executes the function recovery process at a predetermined timing (or immediately after the lapse of the predetermined period). Further, in this case, the POS terminal 1 may be configured to be able to designate (select) a predetermined period (a period during which execution of the function recovery process is prohibited).
[0100]
As described above, according to the first and second embodiments, according to the present invention, the printer 2 does not execute the function recovery processing until the printer 2 receives the permission command from the POS terminal 1. The function recovery processing is not executed by the reset signal generated at the time. Therefore, wasteful consumption of ink due to interruption of the function recovery processing can be prevented. In addition, by configuring the printer 2 to execute the function recovery process when receiving the permission command from the POS terminal 1, the POS terminal 1 does not affect the print process (the print start is performed by executing the function recovery process). The function recovery processing can be performed at an appropriate timing such that the function recovery processing is not delayed.
[0101]
Further, there are two modes, a host instruction mode in which the printer 2 executes the function recovery processing based on the permission command transmitted from the POS terminal 1 and a printer determination mode in which the function recovery processing is performed at a predetermined timing regardless of the permission command. With the configuration having the mode, even when the POS terminal 1 (or the application or the printer driver incorporated therein) does not have the permission command transmission function, the printer 2 is set in the printer determination mode. It is possible to avoid a state in which the function recovery processing is not executed. Therefore, regardless of whether the POS terminal 1 can transmit the permission command, the printer 2 can maintain the print quality. Further, since the function recovery processing mode is set (stored) by the memory switch, it is possible to easily set the function recovery processing mode on the POS terminal 1 side at the time of updating the system or the like.
[0102]
Also, by configuring the POS terminal 1 to have a plurality of types of permission commands and executing a function recovery process in accordance with the type of the permission command, the POS terminal side can determine the appropriate type for the printer 2. Function recovery processing can be performed. Further, by adopting a configuration in which a prohibition command is transmitted from the POS terminal 1, a period during which the printer 2 does not execute the function recovery process can be specified.
[0103]
It should be noted that the processing of each component of the printing system PS according to the present invention is executed by computer control, and a program that causes a computer to execute the above processing according to the procedures shown in the flowcharts of FIGS. Alternatively, the program may be stored and distributed on a computer-readable recording medium such as a CD-ROM or a magnetic tape. Further, a computer may read the program from the recording medium and execute the program.
[0104]
【The invention's effect】
As described above, according to the inkjet printer, the printing system, the inkjet printer control method, and the program of the present invention, the inkjet printer receives the permission command for permitting the execution of the function recovery process from the host device, and then executes the function. Since the recovery processing is performed, the function recovery processing is not performed by the reset signal generated when the host device is started. Therefore, wasteful consumption of ink due to interruption of the function recovery processing can be prevented.
[0105]
In addition, since the inkjet printer performs the function recovery process when receiving the permission command from the host device, the host device performs the function recovery process on the inkjet printer at an appropriate timing so as not to affect the printing process. Can be done.
[Brief description of the drawings]
FIG. 1 is a configuration diagram illustrating an overall block configuration of a printing system according to a first embodiment of the present invention.
FIG. 2 is a configuration diagram illustrating an apparatus configuration of a printing system according to the first embodiment of the present invention.
FIG. 3 is a timing chart illustrating an operation example of the printing system according to the first embodiment of the present invention.
FIG. 4 is a flowchart (1/3) showing an example of processing of the printing system according to the first embodiment of the present invention.
FIG. 5 is a flowchart (2/3) showing an example of processing of the printing system according to the first embodiment of the present invention.
FIG. 6 is a flowchart (3/3) showing an example of processing of the printing system according to the first embodiment of the present invention.
FIG. 7 is a timing chart illustrating an operation example of the printing system according to the second embodiment of the present invention.
FIG. 8 is a timing chart showing printer control processing in a conventional general printing system.
FIG. 9 is a timing chart showing printer control processing in the printing system disclosed in Patent Document 1.
FIG. 10 is a timing chart illustrating a conventional printer control process in a printing system including a POS terminal.
[Explanation of symbols]
1 POS terminal
2 Printer
6 applications
11 Permission command transmission unit
12 Status monitoring unit
13 Printer Driver
14 Keyboard
15 Card reader
16 Barcode Scanner
17 Display
19 I / F (POS terminal side)
20 I / F (printer side)
21 Control unit
22 Printing Department
23 Function recovery processing execution unit
31 Receipt
32 checks
211 Authorization command acquisition unit
212 Function recovery processing mode setting unit
PS printing system

Claims (22)

In an inkjet printer that operates based on control data from a host device,
Function recovery processing means for performing function recovery processing for recovering the function of the print head at a predetermined timing;
An authorization command receiving unit that receives an authorization command that authorizes execution of the function recovery process from the host device,
The ink jet printer, wherein the function recovery processing means executes the function recovery processing on condition that the permission command is received. 2. The inkjet printer according to claim 1, wherein the function recovery processing unit executes the function recovery processing when receiving the permission command. One of a host instruction mode for executing the function recovery processing based on the permission command transmitted from the host device and a printer determination mode for executing the function recovery processing at a predetermined timing regardless of the permission command is set. Further comprising a function recovery processing mode setting means for performing
The ink jet printer according to claim 1, wherein the function recovery processing unit executes the function recovery processing according to a set function recovery processing mode. The ink jet printer according to claim 3, wherein the function recovery processing mode setting means is configured to be switchable based on control data or a command from the host device. The function recovery processing means executes a plurality of types of function recovery processing,
The inkjet printer according to claim 1, wherein the permission command receiving unit receives one of a plurality of types of permission commands corresponding to the plurality of types of function recovery processing. The host device further includes a prohibition command receiving unit that receives a prohibition command for prohibiting execution of the function recovery process,
6. The ink jet printer according to claim 1, wherein the function recovery processing unit does not execute the function recovery processing after receiving the prohibition command and until receiving the permission command. 7. The function recovery processing unit according to claim 1, wherein the function recovery processing unit executes the function recovery processing on condition that specific print data or a specific command is received instead of receiving the permission command. 2. The inkjet printer according to 1. A printing system comprising the inkjet printer according to any one of claims 1 to 7 and the host device,
The host device includes a permission command transmitting unit that transmits the permission command to the inkjet printer,
The printing system according to claim 1, wherein the permission command transmitting unit transmits the permission command when starting and / or terminating an application installed in the host device. The host device is a POS terminal that performs a payment process based on input of product information by an operator,
9. The printing system according to claim 8, wherein the permission command transmitting unit transmits the permission command when the product information is input. The POS terminal is capable of performing a payment process using a credit card,
The printing system according to claim 9, wherein the permission command transmitting unit transmits the permission command when reading of the credit card information is completed. The POS terminal is capable of performing check processing by check,
The printing system according to claim 9, wherein the permission command transmitting unit transmits the permission command when printing on the check is completed. The printing system according to claim 9, wherein the permission command transmitting unit adds the permission command to the end of print data to be transmitted to the inkjet printer and transmits the print data. 13. The permission command transmitting unit according to claim 9, wherein the permission command transmission unit transmits the permission command when the POS terminal goes into a sleep state and / or when the POS terminal goes into an operation state from the sleep state. A printing system according to claim 1. The POS terminal inputs the product information by reading with a barcode scanner,
When the barcode scanner is stored in a predetermined storage position, it is regarded as the inactive state, and when the barcode scanner is detached from the storage position, it is regarded as being in the inactive state from the inactive state. The printing system according to claim 13, wherein At a predetermined timing, a function restoring process for restoring the function of the print head can be performed, and a method of controlling an inkjet printer that operates based on control data from a host device,
From the host device, a permission command transmission step of transmitting a permission command to permit execution of the function recovery process to the inkjet printer,
A function recovery processing step of causing the inkjet printer to execute the function recovery processing based on the transmission of the permission command. The method according to claim 15, wherein in the function recovery processing step, the function recovery processing is executed when the permission command is transmitted. A host instruction mode for executing the function recovery processing based on the transmission of the permission command from the host device, and a printer determination mode for executing the function recovery processing at a predetermined timing regardless of the transmission of the permission command. Further comprising a function recovery processing mode setting step of setting any one of
17. The method according to claim 15, wherein in the function recovery processing step, the function recovery processing is executed according to a set function recovery processing mode. 18. The method according to claim 17, wherein in the function recovery processing mode setting step, a function recovery processing mode is set based on an operation of the host device. The function recovery processing includes a plurality of types of function recovery processing,
In the permission command transmitting step, one of a plurality of types of permission commands corresponding to the plurality of types of function recovery processing is transmitted,
19. The method according to claim 15, wherein in the function recovery processing step, a function recovery processing corresponding to a type of the permission command is executed. The host device further includes a prohibition command transmitting step of transmitting a prohibition command for prohibiting execution of the function recovery processing,
20. The control of the inkjet printer according to claim 15, wherein, in the function recovery processing step, the function recovery processing is not performed until the transmission of the permission command after the transmission of the prohibition command. Method. 21. The function recovery processing step according to claim 15, wherein the function recovery processing is executed based on transmission of specific print data or a specific command instead of the permission command. The control method of the ink jet printer described in the above. A program for executing each step in the method for controlling an inkjet printer according to any one of claims 15 to 21.

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