JPH0436872B2 - - Google Patents

Description

TECHNICAL FIELD The present invention relates to a print control method, and particularly to a print control method related to restart processing when print processing is interrupted during printing processing of print image data of a certain page. It is.

Conventional technology Conventionally, devices using this type of method handle the abnormal state and restore the normal state in the event of an error such as when paper jams during printing or when the device malfunctions. When reprinting, the following method was used. (1) Reprint from the first page. (2) Through partial printing processing, the operator specifies and inputs the part he wants to print again and resumes printing.

If you want to reprint from the first page in (1), the device itself will have a simple structure, but when printing a large amount of printed matter, especially page printing or printing a specific number of copies, you will need to reprint from the first page, which will require a large number of prints. It took a long time. Also, (2)
Even when restarting printing by partially printing, the operator has to specify the printing start position, and when handling a large number of documents, it is difficult to find the printing restart position. .

Purpose The present invention has been made in view of the above-mentioned points.If the print process is interrupted during the print process of the print image data of a certain page, when the print process is restarted after that, the print process is stopped. It is an object of the present invention to provide a print control method capable of reprinting data of a page where an interrupted state has occurred from the beginning.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings.

FIG. 1 is a circuit block diagram for explaining an embodiment of a printing device using the method of the present invention, and 1 is a main control device such as a central processing unit (CPU);
It issues commands to each device and performs various processes to control the entire device. Reference numeral 2 denotes a key input device, which is equipped with various key input switches for the operator to execute. 3 is a document storage buffer that stores data to be printed and transfers necessary print data to the main controller 1 according to a command from the main controller 1.
Data input from the input device 2 is converted into print data under the supervision of the main control device 1, and is input to the document storage buffer 3 for temporary storage. This document storage buffer 3 temporarily stores the print image in the same format as the print image, as shown in FIG. 2, as will be described later. Reference numeral 4 denotes a print start position register (hereinafter abbreviated as print start register) which stores the start position address of the page currently being printed in correspondence with the address in the document storage buffer 3. This print start register 4 stores the start position address of the page currently being printed until the printing of the page being printed is completed during the printing operation, and after the printing of the page is completed, the start position address of the print of the next page is sent from the main controller 1. Input by command. In addition, in the event of a printing error, the head position address data of the page currently being printed is output according to a command from the main controller 1.

5 is a line start position register (hereinafter abbreviated as line start register) that stores the start position address of the line currently being printed, and like the print start register 4, it corresponds to an address in the document storage buffer 3. .

Reference numeral 6 denotes a printer which prints the print data stored in the document storage buffer 3 via the main controller 1 and prints the address data of the line head register 5 as the head.
The printing data is received line by line and printing is performed. Further, when an abnormality occurs during printing, the printing operation is stopped and a printing error signal is output to the main controller 1. Reference numeral 7 denotes an address bus, which is output from the main controller 1 when executing or controlling various commands via the address bus 7. 8 is a data bus, and various data are outputted from the main controller 1 via this data bus 8. Reference numeral 9 indicates various control signals, and the main controller 1 sends execution signals and control signals to other devices, and transmits control signals from the peripheral devices to the main controller 1.

FIG. 2 shows an example of the structure of the document storage buffer 3.
Data is stored to correspond to a print image as shown. If the first page is being printed, the address corresponding to the data 10 in FIG. 2 is stored in the print head register 4. Also, when the l2th line corresponding to 11 in FIG. ₂ is currently being printed during printing, the address corresponding to the data "ko" in 12 in FIG. 2 is stored in the line head register 5.

Next, the operation of the printing apparatus according to the present invention will be explained with reference to the flowchart shown in FIG.

Printing is executed by pressing a print execution key provided on the input device 2. At this time, in step S1, the start address of the document buffer corresponding to the page to be printed is stored in the print start register 4. That is, when printing one page in FIG. 2, the address corresponding to 10 in FIG. 2 is stored. Next, in step S2, the row head register 5 is set.
That is, in this case, since the first line of the first page in FIG. 2 is printed, the address corresponding to 10 in FIG. 2 is stored. In step S3, printing is performed by executing a print processing routine. In step S4, if it is determined that an abnormal operation has occurred in the printer 6, an error signal is output from the printer 6 to the main controller 1. If an error occurs while printing line ₁₂ corresponding to 11 in FIG. 2, the error is handled in step S5, the paper is set again, and the print key is pressed. At this time, the value of the print head register 4 is set as the value of the line head register 5. In other words, since a printing error occurred on the line corresponding to 11 in Figure 2, the address corresponding to 12 in Figure 2 was stored in the line start position register 5, but due to the printing error, it was restarted from the first line. Print head register 4 for printing needs
The value of is stored in the row head register 5. That is, the address corresponding to 10 in FIG. 2 is stored. In this way, the process returns to steps S3 and S4. If there is no error signal in step S4, it is checked in step S6 whether or not the last line of the page being printed has been printed. In step S7, the contents of the line head register 5 are sequentially incremented for each line printed until the last line is printed. Also,
After page printing is completed in step S6, it is checked in step S8 whether the next page is to be printed. In step S9, when printing the next page, press the print key and set print head register 4 to line head register 5.
Sets the corresponding address at the beginning of the line following the line included in the address stored in . Further, the value of the print head register 4 is set in the line head register 5 in step S2. In this way, printing is executed through steps S1 to S9, and when printing is completed, the process moves to another processing routine.

As explained above, the print control method according to the present invention has the feature that printing can be easily restarted by storing the start position address of the page being printed and reprinting from the start position address again in the event of an error. have

Effects As is clear from the above description, according to the present invention, if the print process is interrupted during the print process of print image data of a certain page, when the print process is resumed after that, the print process is stopped. In order to reprint the data of the page where the interrupted state has occurred from the beginning, the specific information can be controlled not to be updated, and printing can be easily restarted.

[Brief explanation of drawings]

FIG. 1 is a circuit block diagram showing an embodiment of a printing device using the method of the present invention, FIG. 2 is an explanatory diagram showing an example of the configuration of the document storage buffer shown in FIG. 1, and FIG. 3 is a printing device shown in FIG. FIG. 3 is a flowchart showing the operation of the device. 1... Main control device, 2... Key input device, 3...
...Document storage buffer, 4...Print start position register, 5...Line start position register, 6...Printer, 7...Address bus, 8...Data bus, 9
……Control signal.

Claims (1)

[Claims] 1 Based on input data, at least 1
Generate print image data to be printed corresponding to a page, provide specific information to specify the beginning position of the print image data corresponding to the page to be printed, and print the print image data of one page by printing the print image data of a certain page. When printing is completed, the specific information is updated in order to specify the starting position of the next page before printing the next page, and during the printing process of the print image data of a certain page,
When a print processing interruption state occurs, control is performed so that the specific information is not updated in order to reprint the data of the page where the print processing interruption state occurred from the beginning when the printing processing is subsequently restarted. A printing control method characterized by: