JPS59129182A - Printing apparatus - Google Patents

Abstract

PURPOSE:To efficiently perform the re-starting of printing after error treatment, by starting printing from the lead part of a page after treatment of a generated printing error by mounting a means for storing the printing information about the lead part of the page during printing. CONSTITUTION:The lead address of document buffer corresponding to a page to be printed at the beginning of printing is stored in a printing lead register 4 and, subsequently, a line lead register 5 is set. When an error signal is outputted to a main control apparatus 1 from a printer 6 during printing to stop printing, error treatment is performed and a printing key is pushed after paper is reset to start printing from the beginning of said page.

Description

TECHNICAL FIELD The present invention relates to a printing device, and more particularly to a printing device having a recovery function in the event of an error occurring during page printing.

PRIOR ART Conventionally, this type of device has been used to handle temporary errors such as when paper gets jammed during printing and causes a vapor jam, or when the device malfunctions. The following method was used. (1) Reprint from the first page.

(2) In the partial printing process, the operator specifies and inputs the part to be printed again and resumes printing. (3) If the printing error is such that printing can be restarted from the location where the abnormal condition occurred, or if the error is not, the operator must either reprint from the first page or perform partial printing in which the operator specifies and inputs the location to be printed again. did not become.

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, it will be very difficult to reprint from the first page. It took a lot of time. In addition, when restarting printing by partial printing in (2), the operator must specify the printing start position, and when handling a large number of documents, it is difficult to determine the printing restart position. be. Furthermore (3)
When the ladle opening processing force method differs depending on the type of printing error, as in the case of the above method, there are drawbacks such as a complicated mechanism.

Purpose The present invention has been made in view of the above points, and is provided with means for storing printing information at the beginning of the page currently being printed, so that when a printing error occurs, the error can be detected again after the error is processed. An object of the present invention is to provide a printing device capable of performing reprint execution processing in the event of a printing error with a simple mechanism and simple operation by restarting printing from the head of the page.

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

FIG. 1 is a circuit block diagram for explaining one embodiment of a printing device according to the present invention, and 1 is a central processing unit (CPU).
), etc., and controls the entire device by issuing commands to each device and performing various processes. Reference numeral 2 is a key manual device, which is equipped with various key manual switches for the operator to execute. Reference numeral 3 denotes a document storage buffer that stores data to be printed, and outputs necessary print data to the main control device 1 according to instructions from the main control device 1, and input data from the input device 2 to the main control device 1. ``Under supervision, the data is converted into print data and input to the document storage buffer 3 for temporary storage. This document storage buffer 3 is
As will be described later, for example, as shown in FIG. 2, the image is temporarily stored in the same format as the print image. 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 being printed until the printing of the page being printed is completed during the printing operation, and after the printing of the page is finished, the start position address of the print of the next page is sent from the main controller 1. Input by command. Further, in the event of a printing error, the head position address stake of the page currently being printed is outputted by 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 similarly to the print start register 4, it corresponds to the address in the document storage buffer 3. There is.

Reference numeral 6 denotes a printer which sends the print data stored in the document storage buffer 3 to the line start register 5 via the main controller 1.
The print data is received and printed on a line-by-line basis starting from the address busk. Further, if there is an abnormality during printing, the printing operation is interrupted 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 control device 1 when executing various commands or discharging control via this 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 t1 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, in which data is stored to correspond to the print image shown. If the first page is being printed, the address corresponding to data 10 in FIG. 2 is stored in the print head register 4. Also, the sentence corresponding to number 11 in Figure 2 is currently being printed. When a line is being printed, the address corresponding to the data 12 "ko" 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 1- 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 there is an abnormal operation in the blink 6, an error signal is outputted from the printer 6 to the main controller 1. Now, if an error occurs while printing line L2 corresponding to 11 in Figure 2,
In step S5, error processing is performed, 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, either the address corresponding to 12 in Figure 2 was stored in the line start position register 5, or the print was reprinted from the first line again due to the printing error. Because of the need to print, the value of the head register 4 is stored in the line head register 5. That is, the address corresponding to 10 in FIG. 2 is stored. In this way, the process returns to steps 83 and 84. If step S
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 omitted. In step S7, the contents of the line head register 5 are sequentially incremented for each line printed until the last line is printed. Furthermore, 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, the print key is pressed and the address corresponding to the start of the line next to the line included in the address stored in the line start register 5 is set in the print start register 4. 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 81 to S9, and when printing is completed, the process moves to another processing routine.

Effects As explained above, according to the printing device according to the present invention, printing can be easily resumed by storing the start position address of the page being printed and reprinting from the start position address when an error occurs. It has the characteristic of being able to

[Brief explanation of drawings]

FIG. 1 is a circuit block diagram showing an embodiment of the printing device according to the present invention, and FIG. 2 is a circuit block diagram showing an embodiment of the printing device according to the present invention, and FIG. 2 shows the document storage batt of FIG. 7... Address bus 8... Day') Lotus 9
...Control iii'11 signal

Claims (1)

[Scope of Claims] (1) In a printing device that prints on printing paper page by page, a first storage means that temporarily stores an address corresponding to the data to be printed at the top position of the page to be printed; and a second storage means for temporarily storing an address of data currently being printed or to be printed next, and when a printing error occurs, the address stored in the first storage means is stored in the second storage means. By storing in the means, when printing is resumed, printing is performed again from the beginning of the page where the printing error occurred.Characterized by a printing start position register storing a start position address corresponding to the position of the outdated copy. A printing device according to claim 1. (3) The printing device according to claim 1, wherein the storage means of said B2 is a line start position register that stores the start position address of the line currently being printed.