JPH08305511A - Print method and its system - Google Patents

Abstract

PURPOSE: To provide a print system and its method in which other of plural computers makes printing with priority while any of the plural computers makes printing. CONSTITUTION: While a host B uses a printer 101 to make printing, when a host C publicates an interrupt print request using the printer 101 to the host B, the host B compares priority included in the interrupt print request 210 with priority of print data being printed and interrupts the print processing when the priority of the interrupt print request 210 is higher than that of the print data to permit printing for the host C. When the interrupt printing is finished, the host B restarts the print processing from a page whose print processing is interrupted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing system in which a printer device is shared by a plurality of computer devices and a printing method in a network system in which a printer device is shared by a plurality of computer devices.

[0002]

2. Description of the Related Art In a network environment in which a plurality of computer devices are connected, a printer device shared by the plurality of computer devices is generally connected. Under such a circumstance, when a user (computer device) wants to perform printing, the printer device is often already used by another computer device.

In such a case, the user of the computer device, who has instructed to print later, finishes outputting the print data that has already been printed by the printer device,
If there is print data that has already been spooled (waiting for print processing), it is necessary to wait until the print processing of the print data is completed. For example, consider a situation where the printer device is currently printing the print data A from the computer device A, the computer device B is spooling the print data B, and the computer device C is spooling the print data C. In such a case, even if the computer device D transmits the print data D to the printer device, the print data D is
Only after the print data A, data B, and data C have been printed, the printer device will not print.

[0004]

As described above, the prior art is as follows.
It was not possible to change the print order of print data or the spool order from a computer device. That is, as described above, the printer device is printing the print data A, and the print data B and the print data C are spooled.
If multiple computer devices (users) are waiting for printing and want to print immediately, cancel the printing process for all users (computer devices) that are printing or spooled print data. I have to ask you to. Then, after confirming that all the print processes including those spooled have been canceled, it is necessary to perform the print process from the own computer device.

Further, while printing the print data, the user who cancels the print processing on the way checks the printed matter that has already been printed, then checks the page for restarting the print processing, and prints from the page. You must specify to restart. In addition, the user whose spooled print data has been erased must again instruct the printer to transmit the print data to the printer device from the beginning to perform print processing, which is extremely inoperable. It was

The present invention has been made in view of the above-mentioned conventional example, and provides a printing system and a method thereof, in which printing can be performed with priority over other computer equipment during printing by any of the plurality of computer equipment. The purpose is to do.

It is another object of the present invention to provide a printing system in which a computer device interrupting a printing process due to an interrupt printing request from another computer device can automatically resume printing from the next page when the interrupt printing is completed. And to provide a method thereof.

Another object of the present invention is to provide a printing system and method in which priorities can be set for print data and printing can be performed using a printer device in descending order of priority according to the priorities. To do.

[0009]

In order to achieve the above object, the printing system of the present invention has the following configuration.
That is, in a printing system in which a printer device is shared by a plurality of computer devices, the computer device receives an interrupt print request for using the printer device from another computer device while printing using the printer device. Receiving means, comparing means for comparing the priority information included in the interrupt print request, and the priority of the print data being printed, and the result of the comparison by the comparing means,
When the priority included in the print request is higher, a print interrupting unit that interrupts the print processing during printing and permits the computer device that issued the print request to perform printing is provided.

In order to achieve the above object, the printing method of the present invention comprises the following steps. That is, a printing method in a network system in which a printer device is shared by a plurality of computer devices, wherein the second computer device changes from the second computer device to the first computer device while the first computer device is printing using the printer device. Issuing an interrupt print request using the printer device, comparing priority information included in the interrupt print request with priority of the print data being printed, and priority included in the print request. When the rank is higher, the first computer device interrupts the printing process and permits the second computer device to print.

[0011]

In the above configuration, when the first computer device is printing using the printer device and the second computer device issues an interrupt print request for using the printer device to the first computer device, The priority information included in the interrupt print request is compared with the priority of the print data being printed, and when the priority included in the print request is higher, the first computer device performs the print process. The printing is interrupted and the second computer device is allowed to print.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 shows a network of an embodiment of the present invention.
In the block diagram showing the configuration of the system, in this embodiment,
One printer device 101 and two printer devices 101
Host computers (hosts) B and C are connected.

In FIG. 1, the host B is a control unit 110 that controls the operation of the entire host B, a network connection unit 111 that controls the transmission and reception of data between the host B and the network 130, and print data and various data. Similarly to the host B, the host C has a storage device 112 that stores the control unit 120 and the network connection unit 12.
1 and a storage device 122.

FIG. 2 shows a network according to an embodiment of the present invention.
FIG. 6 is a diagram illustrating an example of a print processing state in the system.

In FIG. 2, the printer device 101 is receiving print data from the host B via the network 130 and is printing, and has already printed two pages of print data 2.
The print processing of 01 is completed, and the third page 202 is printed. A case where the host C interrupts printing of one page in this state will be described.

To explain the outline of the processing in this case, the host C sends via the network 130 that the printer 101 receives the print data from the host B and is executing the print processing. It is recognized by the data from the printer device 101. Therefore, the host C issues an interrupt request 210 to the host B to inquire that it wants to interrupt the printing process. Then, when receiving a message "OK" from the host B, the host C waits for the printer 101 to finish printing the third page, transmits print data to the printer 101, and prints. Then, when the printing process of one page by the print data from the host C is completed, the host C notifies the host B that the printing is completed. This allows host B
Restarts the interrupted printing process and starts printing from the fourth page.

If there is a response "NG" from the host B that does not permit interrupt printing, the host C cannot perform interrupt printing.

FIGS. 3A to 3D are diagrams showing the data structure stored in the storage device of each host in the network system of this embodiment. Incidentally, in FIG. 3, as “information data”, the printer status, the priority order of the print data of the printer itself, the host name of the print execution host, and the print start page when the print is restarted are stored. To be done. Further, the “transmission data” stores the transmission data to another host, and the response messages “OK” and “NG” to the interrupt request, the interrupt print request “Interrupt”, its priority, and the end message “End” are stored. It Also, the received data from another host is set in the "received data", the host name of the other party who received the data, and the contents of the request message "Inte
rReply "and other response messages from other hosts, termination messages, etc. are set.

4 to 6 are flowcharts showing the operation of the host connected to the network 130 according to the embodiment of the present invention. Hereinafter, these flowcharts and FIG.
This embodiment will be described in more detail with reference to. The control program that executes this processing is the network 13
It is stored in the control unit or storage device of each host connected to 0, and is executed by the control unit.

First, in step S1, the host (for example, host C) that wants to print inquires the connected printer device 101 via the network 130, checks the current state of the printer device 101, and checks the state. Are set in the storage device 122. Next, in step S2, it is determined whether the printer device 101 is in use, based on the information received in step S1 and set in the storage device 122. Now, for example, as shown in FIG.
When 1 is printing, the process proceeds to step S3, and information about the host (host B in the example of FIG. 2) currently outputting the print data currently being printed is acquired from the printer device 101 and stored in the storage device 122. Set. Next, in step S4, the interrupt request for printing and the priority order (priority) for the printing are set, and in step S5, the interrupt request and priority are set for the host that is currently printing (host B here). Send to.

Next, in step S6, it is checked whether or not a response message from the destination host (host B) is received, and in steps S6 and S7, the response message is awaited. When the response message is received in step S7, the process proceeds to step S8, the message is received, and it is checked in step S9 whether the response message is "OK". If the response message is "OK", step S9
Then, the process proceeds to step S10. In step S10, the state of the printer device 101 is checked. In this case, the printing process by the host B is interrupted and the printer device 101 becomes usable. Therefore, the print data is transmitted to the printer device 101 to perform printing. When printing is completed in this way, an end message "End" indicating the end of printing is set and sent to the host (here, host B) that has interrupted the printing process.

FIG. 3B shows the contents of the storage device 122 associated with the processing in the host C described above.

In step S1, when the host C checks the status of the printer device 101, the printer device 101 is printing the print data from the host B, so the status of the printer device 101 is "Busy" (in operation). It can be seen that the printer device 101 is being used by the host B. Therefore, the host C sets the priority of the print data to be printed to "8" and sends the interrupt print request "Interrupt" to the host B. FIG. 3 (b)
In the case of, the message of permission “OK” is returned from the host B in response to this interrupt print request, the print process by the host B is interrupted, and after the print process by the print data output from the host C is completed. , The end message “End” is output to the host B.

Thus, as shown in FIG. 3B, in the storage device 122 of the host C, the first state "Busy" of the printer device 101 is added to the "transmission data" in the "information data".
The transmitted interrupt print request “Interrupt”, the priority value “8”, and the end message “End” are stored in the storage area, and the “reception data” is “OK” from the host B.
Is received is stored.

In step S9, the "OK" message is not sent from the host being printed, but "NG", for example.
When the (non-permission) message is sent, the process returns to step S1 and waits until the printer apparatus 101 is no longer in use. In the above steps S3 to S5, an interrupt request is issued once, and the response message "N
When "G" is received, the interrupt request is not sent again to the same host with the same priority.

FIG. 3D shows this case.

When the host C checks the state of the printer device 101, the printer device 101 is currently printing the print data from the host B, so that printer device 10
The state of 1 is "Busy" (in operation), and the printer device 1
It can be seen that 01 is used by "Host B". Therefore, the host C sets the priority of the print data to be printed to "3" and issues the interrupt printing request "Interrupt" to the host B. In the case of FIG. 3D, the priority of this interrupt print request is "3".
Then, since it is lower than the priority "5" of the print data printed by the host B, the host B returns a disapproval "NG" message. Therefore, "Busy" is stored in the "information data" because the printer apparatus 101 is performing the print processing by the "host B", and the interrupt print request is set in the "transmission data" with a priority of "3". It is remembered that "Interrupt" was issued,
The “reception data” stores that the interrupt non-permission message “NG” is received from the host B.

In step S2, the printer device 101
If is not in use, the process proceeds to step S12 in FIG. In step S12, the priority for the print process to be performed is set and stored in the storage device. Next, in step S13, the print data is transmitted to the printer apparatus 101 to perform printing. In step S14, it is checked whether or not the printing process is completed. If the printing process is completed, the process proceeds to the ending process from step S15. If the printing process is not completed, step S16 is performed.
Then, it is checked whether the print interrupt request 210 is received from another host (for example, the host C) connected to the network 130. When the interrupt request 210 is received, the process proceeds from step S17 to step S18, and the interrupt request 2
The content of the information (message) included in 10 is examined.

FIG. 3A is a diagram for explaining the contents stored in the storage device 112 of the host B when the host B is performing printing.

At the time of starting printing, "information data"
Is set to “idle” (usable) as the status of the printer apparatus 101, and its priority is set to “5”.

Referring again to FIG. 5, if the message is the interrupt print request "Interrupt", the process proceeds from step S19 to step S20, and the priority (priority) of the print data included in the interrupt request and the current print. The priority of the print data (stored in the storage device) is compared. When the priority of the print data currently being printed is higher, the process proceeds from step S21 to step S22, and the response message is "NG".
Set (Do not accept interrupt request) and send to the host that issued the interrupt request.

On the other hand, when the priority of the received interrupt request is higher, the process proceeds from step S21 to step S23 (FIG. 6).
Proceed to.

Further, step S17 and step S19
If the interrupt request is not made, the process returns to step S13 to continue the printing process.

FIG. 3C shows a change in the contents of the storage device 112 of the host B when the reply message "NG" is transmitted from the host B to the host C which has issued the interrupt request.

When the host B receives the print interrupt request from the host C during printing, the print interrupt “Interrupt” from the host C is stored in the “received data” of the storage content of the storage device 112.
Is set, and the priority of the print request is also set to "3". In this case, the priority of the print data printed by the host B is “5”,
Since the priority is lower than the print request from the host C, the host B returns "NG" without accepting the request.
Therefore, “NG” is stored in the “transmission data”.

On the other hand, when the priority of the received interrupt print request is higher than the priority of the print data currently being printed, the process proceeds to step S23 (FIG. 6), and the printing process is performed when the printing of the page currently being printed is completed. To suspend. Then, the process proceeds to step S24, and the print start page for restarting the print process is stored in the storage device. Next, proceeding to step S25, "OK" indicating interrupt permission is transmitted as a response message to the host that issued the interrupt request. Then, in steps S26 to S27,
Wait for the interrupt printing to finish.

This state is shown in FIG. FIG. 3 (a)
, While host B is printing the third page, host C
If you receive a print interrupt from
The host C stores that there was a print interrupt request “Interrupt”, and the priority of the print data of this interrupt request is “8”, which is higher than the priority “5” of the data currently printed by the host B. You can see that it is expensive. Therefore, the print start page at the time of restarting printing next is set to "4", and "OK" indicating that the interrupt is accepted is transmitted to the host C as "transmission data".
Then, when the message “End” is received from the host C as the “reception data”, the host B restarts the print processing from the fourth page.

Returning to FIG. 6 again, steps S26 and S27.
If a message from another host is received while waiting for, the process proceeds to step S28, the message is stored in the storage device, and its contents are examined. If the message is "End" indicating the end of the printing process, step S2
The process proceeds from step 9 to step S30, and the start page information for restarting the printing process stored in step S24 is referred to.
The printing process is restarted from the start page. When printing is restarted in this way, the process proceeds to step S13 and the above-described processing is performed.

FIG. 7 is a flow chart showing the processing in the printer apparatus 101 of this embodiment.

When the printer apparatus 101 receives a command for inquiring the state of the printer apparatus 101 from a certain host, the inquiry data is received in step S41 of the state inquiry processing routine. Next, in step S42, it is determined whether print data is currently received from a certain host and print processing is being executed. If printing is not in progress in step S42, step S43
And respond with an idle "idle" as the status data.

On the other hand, when printing is being performed in step S42, the process proceeds to step S44, in which response is made with status data "Busy" indicating busy, and in step S45, which host print data is being printed. Notice.

As a result, the host connected to the network 130 can know the operating state of the printer 101 and the name of the host that is printing if printing is in progress.

In the present embodiment, the printer device 10
1 may be, for example, a plotter or various recorders. The network may be any of bus type, star type, token ring type and the like.

Further, various types of computer equipment such as personal computers, workstations, minicomputers, etc. are conceivable as the host, and the control unit of these hosts may be constituted by hardware, or a CPU,
It may be configured by software, ROM, RAM, or the like.

The network connection unit is, for example, an interface board, and the storage device is R
A memory such as an AM, a magnetic disk device, a magneto-optical disk device, a magnetic tape device, etc. can be considered.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. The present invention can also be applied to the case where it is achieved by supplying a program for implementing the present invention to a system or an apparatus.

As described above, according to this embodiment, interrupt printing can be easily performed even when another host connected to the network is using the printer to perform print processing. it can.

By setting the priority for the print data, the shared hardware resources can be efficiently used.

Further, regarding the processing interrupted by the interrupt printing, the previous printing processing is automatically restarted when the interrupt printing is completed, so that it is not necessary to repeat the printing work.

[0051]

As described above, according to the present invention, there is an effect that during printing by any of a plurality of computer devices, printing can be performed with priority over other computer devices.

Further, according to the present invention, in a computer device which interrupts the printing process due to an interrupt printing request from another computer device, when the interrupt printing is completed, the printing can be automatically restarted from the next page.

Further, according to the present invention, it is possible to set the priority order to the print data and to print by using the printer device in the order of the highest priority order according to the priority order.

[0054]

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a network system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a state of print processing in the network system of the present embodiment.

FIG. 3 is a diagram showing an example of contents of a storage device of each host of the present embodiment.

FIG. 4 is a flowchart showing control in a host according to an embodiment of the present invention.

FIG. 5 is a flowchart showing control in a host according to an embodiment of the present invention.

FIG. 6 is a flowchart showing control in a host according to an embodiment of the present invention.

FIG. 7 is a flowchart showing control processing in the printer connected to the network according to the embodiment of the present invention.

[Explanation of symbols]

 101 printer A 110, 120 control unit 111, 121 network connection unit 112, 122 storage device 130 network 210 interrupt print request 201, 202 print data

Claims (12)

[Claims] 1. A printing system in which a printer device is shared by a plurality of computer devices, wherein the computer device interrupts printing by using the printer device from another computer device while printing using the printer device. A receiving unit for receiving a request; a comparing unit for comparing the priority information included in the interrupt print request with the priority of the print data being printed; and a result of the comparison by the comparing unit, which is included in the print request. A printing interrupting unit that interrupts the printing process during printing and permits the computer device that has issued the print request to print when the priority is higher. 2. As a result of the comparison by the comparison means, when the priority included in the print request is lower, a transmission means for transmitting a disapproval message to the computer device that issued the print request is further included. The printing system according to claim 1, wherein: 3. The printing system according to claim 1, wherein the printing interruption unit has a storage unit that stores a page number for restarting printing. 4. The printing system according to claim 1, wherein the print suspending unit suspends the print processing when the print processing for one page being printed is completed. 5. The computer device that issues the print request, accepts the print request, and starts printing, transmits a print end message to the computer device that is interrupting the print process at the end of the print. The printing system according to claim 1, wherein the printing system is a printing system. 6. The printing system according to claim 5, wherein the computer device, which is interrupting the printing process, resumes printing from the page for which printing was interrupted when the printing end message is received. 7. A printing method in a network system in which a printer device is shared by a plurality of computer devices, wherein the first computer device uses the printer device to perform printing while the first computer device prints the first computer device. Issuing an interrupt print request for using the printer device to a computer device; comparing priority information included in the interrupt print request with priority of print data being printed; When the included priority is higher, the first computer device interrupts the printing process and the second computer device interrupts the printing process.
And permitting the computer device to perform printing. 8. The method according to claim 8, further comprising the step of transmitting a disapproval message to the second computer device when the priority included in the print request is lower as a result of the comparison. The printing method according to item 7. 9. The printing method according to claim 7, wherein the first computer device stores a page number for restarting printing when the printing process is interrupted. 10. The printing method according to claim 7, wherein the first computer device suspends the printing process when the printing process of one page being printed is completed. 11. The printing method according to claim 7, wherein the second computer device transmits a print end message to the first computer device at the end of interrupt printing. 12. The printing method according to claim 11, wherein when the first computer device receives the print end message, the printing is restarted from the page where the printing was interrupted.