JP3145761B2 - Printer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer, and more particularly, to a page printer having a page buffer and printing out pages.

[0002]

2. Description of the Related Art A conventional page printer first writes print data sent from a host device into a reception buffer, which is a buffer memory for reception. The print data is interpreted according to a control code for controlling the printer, and the print data is transferred from the reception buffer to the page buffer.
The transferred print data is written in a location corresponding to the print position on the page buffer (continuation of the description of the related art). The page buffer can store one page of paper. Further, the page buffer is configured by collecting many buffers for one line. In this line buffer, print data for one line is written. If there is too much data to be printed and the print runs out of the paper, ie, exceeds the printable area, which is the area where the printer can print on the paper, the print data that has run out is written to the next line. Also, as another method, if you exceed the print limit position,
Clipping was performed in which part or all of the remaining print data was discarded without being printed.

[0003]

SUMMARY OF THE INVENTION In a conventional printer,
If the print data runs off the paper, it is automatically printed on the next line or clipping is performed. At this time, the printer did not inform the operator that the paper would be printed out of the sheet. For this reason, there is an inconvenience that the user intends to print so as not to protrude the sheet, but cannot stop the printing if the user accidentally protrudes the sheet and prints.

An object of the present invention is to provide a page printer capable of confirming a warning message display and suspending a printing operation of a printer when data to be printed out of paper is erroneously printed.

[0005]

According to the present invention, there is provided a printer for printing one line in print data sent from a host device.
A data checking unit for data to check whether <br/> beyond the horizontal printing limit position of the paper, each one row
And display control means for displaying to the operator that the print data has run out of the paper when the print data exceeds the print limit position .

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of the present invention, and FIG. 2 is a flowchart relating to the operation of the present invention.

Referring to the block diagram of FIG. When print data is sent from the host device 1, the interpreting unit 2 interprets the print data according to a printer description language, which is a grammar of paper printing, and the drawing unit 3 writes the print data into the image memory.
The data check means 7 checks whether or not the print limit position has been exceeded in the line buffer for writing the print data for one page. When the print data exceeds the print limit position, the print data that has overflowed is written to the next line buffer, and at the same time, information that the paper has overflowed is transmitted to the display control means 6.
The display control means 6 performs a process for displaying the information on the display unit 5. The display unit 6 displays a warning message that the print data is printed out of the sheet and printed. If a button indicating that printing is to be stopped is pressed in response to the warning message, the printer stops writing to the image memory in the drawing unit 3, the printer stops a series of printing operations, and clears the image memory. To return to the initial state. If the user presses a button indicating that the print data does not protrude out of the sheet or that the print is forced, that is, if the warning message is ignored, the drawing unit 3 determines that the print data is in the printable area where printing is possible (continuation of the embodiment). Write to the image memory. The print data written to the image memory is 1
When the number of pages is reached, printing is performed on paper by the printing unit 4.

Referring to FIG. The print data is written into the line buffer for one line (step 1).
1). It is checked whether the print data for one line written in the line buffer has exceeded the print limit position (step 12). If the print limit position is exceeded, it is considered that the sheet has run out of the horizontal direction, and a warning message indicating that the sheet has run out is displayed (steps 13 and 1).
4). When printing is stopped in response to the warning message, the printer stops the image memory writing operation, clears the image memory, and returns to the initial state (steps 15, 1).
6). If the warning message is ignored and printing is forcibly performed, the print data exceeding the print limit position is written to the next line buffer or clipped (step 1).
7). This is the same as the normal processing. When the image memory is completely written by repeating this operation, it is checked whether or not all the same pages of the original print data have been written (steps 18 and 19). If not all of them are written, it is assumed that the sheet is protruded in the vertical direction of the sheet, and an error display similar to the above is displayed (steps 20 and 22). When printing is stopped, step 16 is performed in the same manner as described above (step 23). If the warning message is ignored, only the print data within the printable area is written to the image memory (step 23). If none of the above does not protrude the sheet, a warning message is not issued and a normal printing operation is performed (step 21).

[0009]

As described above, the present invention is provided with a function for displaying to the operator that the data to be printed is out of the sheet when the data to be printed is out of the sheet, so that the display is made when the print data is out of the sheet. Therefore, the user can stop printing on the sheet when the user accidentally sticks out the sheet and tries to print on the sheet with a line feed. For this reason, there is an advantage that careless printing can be saved.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a flowchart relating to the operation of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High-order apparatus 2 Interpretation part 3 Drawing part 4 Printing part 5 Display part 6 Display control means 7 Data check means

Claims (1)

(57) [Claims] In print data sent from a host device ,
Print data for one line is the printing limit of the paper in the horizontal direction.
A data checking means for checking if more than location, print data of each one line of the printing limit position Ultra
A display control means for displaying to the operator that the sheet has run out of the sheet when the sheet is removed.