JPH03256774A - Printer - Google Patents

Abstract

PURPOSE:To ensure that the same result can be obtained in printing data on a vertically long sheet in a running direction as that obtained in printing data on a laterally long sheet by expanding print data in dots in drawn image memory depending on a direction in which the sheet runs and reading the expanded data for printout. CONSTITUTION:When a vertically long sheet is used, an image drawing control device 11 expands print data in dots in drawn image memory 12. Then a data sending device 13 reads the data expanded in dots sequentially and allows a printing device 14 to print the data. Subsequently, in this case, the same result is obtained in printing data on the sheet as that obtained in printing data on the vertically long sheet using a conventional printer. On the other hand, when a laterally long sheet is used, the image drawing control device 11 expands print data in drawn image memory 12 from an address corresponding to a reference position suited to the laterally long sheet. Next, the data sending device 13 reads the data from a reading start address in accordance with the laterally long sheet sequentially and allows the printing device 14 to execute the printout process. Accordingly, it is possible to obtain the same result in printing data on the laterally long sheet as that obtained in printing data on the vertically long sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer used as an output device in an information processing device.

[Prior Art] Conventionally, this type of printer, when printing on paper that is vertically long with respect to the running direction, starts drawing at the upper left corner of the printing area when the layout of print data is vertically long. Then, printing was performed from the upper left corner of the printing area of the paper in the right lateral direction while reading the data drawn from the upper left corner of the printing area in the right lateral direction.

Furthermore, when printing on paper that is horizontally long with respect to the running direction, the drawing on the vertically long paper is rotated 90 degrees to the left. That is, drawing is performed with the lower left corner position of the printing area as the starting position, reading of data on the vertically long paper, and printing of the read data on the paper are performed in the same manner.

[Problems to be Solved by the Invention] The conventional printer described above prints on horizontally long paper by rotating the drawing on vertically long paper, so when the paper is viewed from the front, there is a problem in the non-printable area. Due to the difference in the width of the left end and the length of the top end, there is a drawback that the print areas of the print results on portrait paper and the print results on landscape paper do not match.

The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a printer that can print the same result on paper that is longitudinally elongated with respect to the running direction as that on paper that is elongated horizontally. do.

[Means for Solving the Problems] The printer of the present invention is capable of printing on vertically long paper and horizontally long paper with respect to the running direction, and prints data expanded into dots in the drawing memory corresponding to the printable area of the paper. In the printer having a printing means for printing, a drawing control means detects a reference position of the printable area according to the running direction of paper, and develops print data into dots from an address position of the drawing memory corresponding to the reference position. and data sending means for sequentially reading out the data developed in the drawing memory C dot from a reading start address according to the direction of paper travel and causing the printing means to print the data.

[Operation] When using vertically long paper, the drawing control means develops print data into a drawing memory in the same manner as in conventional printers, and the data transmission means sequentially reads out the dot-developed data and prints it on the printing means. let Therefore, the print result in this case is the same as the print result on vertically long paper by a conventional printer.

In addition, when using horizontally long paper, the drawing control means develops the print data in the drawing memory from the address corresponding to the reference position corresponding to the horizontally long paper, and reads out the dot-developed data according to the horizontally long paper. The data sending means sequentially reads data from the start address and causes the printing means to execute it.

Therefore, the printing result in this case can be the same as the printing result on a vertically long sheet of paper.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the printer of the present invention, FIG. 2 is a block diagram showing a print data read address generation section in the print data sending section 13 of FIG. 1, and FIG. 3 is a block diagram showing the printing of paper. FIG. 4 is an explanatory diagram showing the impossible area; FIG.
The figure is an explanatory diagram showing the state of printing on paper that is horizontally long with respect to the paper running direction, FIG. 6 is an explanatory diagram that shows the address position corresponding to the print area of the drawing memory 12 in FIG. FIG. 4 is a comparison diagram of the printing results on a horizontally long paper and the printing results on a horizontally elongated sheet of paper.

The drawing control unit 11 develops the print data into dots at the address position of the drawing memory 12 which corresponds to the print area of the paper and stores 16 dots of data at the l address. The print data sending 1113 reads the data developed into dots by the drawing control section 11 from the drawing memory 12 and sends it to the printing section 14 which prints the data on paper.

The address register 21, print data address counter 22, and counting method circuit 23 shown in FIG.
It is provided in the print data sending section 13 shown in the figure. The address register 21 reads the data expanded into dots in the drawing memory 12, and when printing the read data on paper from the upper left corner of the printing area, the address register 21 sets the readout start address of the drawing memory 12 to the lower right corner of the printing area in the non-printable area. The difference between the width of the left end and the length of the top end is added downward in the printable area and stored as an address value in the drawing memory corresponding to the position. The print data address counter 22 starts from the start address stored in the address register 21 when reading dot-expanded data from the address in the drawing memory 12 corresponding to the position of the trailing edge of the print area with respect to the paper running direction. The address of the drawing memory 12 corresponding to the position of the upper left corner of the print area is subtracted by "=1", and the image mark corresponding to the position of the upper end of the print area with respect to the paper running direction is
When reading dot-expanded data from the address of the memory 12, add "+1" from the start address stored in the address register 21 to the address of the drawing memory 12 corresponding to the lower right corner position of the print area. Generates a dot expansion data read address. The counting system circuit 23 uses the print data address counter 22 to set the selection signal Sa to "1" when performing subtraction to generate an address, and to set the selection signal Sa to "1" when performing addition to generate an address.
By outputting as "0", addition or subtraction of the print data address counter 22 is selected.

Next, the operation of this embodiment will be explained. Here, print in the printable area surrounded by the width of the left edge of the paper and the length of the bottom edge of the paper (a dot), the length of the top edge and the width of the right edge of the paper (b dot), which are the non-printable areas. Assumed to be performed.

As shown in Fig. 4(a), dots with a radius x-a-b and a length y are placed on a sheet of paper with a vertically elongated radius x dot and a length y dot with respect to the paper running direction.
-a-b When printing dots, as shown in FIG. 4(b), from the address C of the drawing memory 12 shown in FIG. 6 corresponding to the upper left corner of the printable area of the vertically long paper, The drawing control unit 11 performs direction expansion, stores the address C of the drawing memory 12 in the address register 21,
The counting method circuit 23 outputs "0" as the selection signal Sa, and the print data address counter 22 sequentially adds "+1" from address C to generate the address starting from address N located at the lower right corner of the vertically long paper. , the expanded dot data in the drawing memory 12 is sequentially read out and sent to the print unit 14, which prints it on the paper starting from the upper left corner of the printable area, obtaining the print result shown in FIG. 4(c). .

In addition, the same data as the printing result shown in FIG. 4(C) was used to print the width z-a- on the sheet of horizontally long width y dots and length X dots with respect to the paper running direction of the paper shown in FIG. 5(a). When printing b dots and length y-a-b dots, please refer to Fig. 5 (
As shown in b), from the address m of the drawing memory 12 shown in FIG. 6, which corresponds to the lower left corner of the printable area of the horizontally long sheet, to the address C located above the printable area of the horizontally long sheet of paper. The drawing control unit 11 performs dot development of the print data.
The address l + (a-b) 21 and counting method circuit 23
outputs "1" as the selection signal Sa, and the print data address counter 22 selects the address l-1+ (a-b
)Xy/16 by subtracting "-1" in order to generate the address up to address C located in the upper left corner of the printable area,
The dot data developed in the drawing memory 2 is sequentially read out and sent to the print section 14, where it is printed on paper starting from the upper left corner of the printable area, as shown in FIG. 5(c).
Obtain the print result shown below.

From the above, as shown in Fig. 7, when the printing result shown in Fig. 5(c) is rotated 90'' to the left, Fig. 5(C) and Fig. 4(c) have exactly the same printing result. .

[Effects of the Invention] As explained above, the present invention expands print data into dots in the drawing memory according to the running direction of the paper, and reads and prints the dot-expanded data. , it is possible to obtain a print result that is exactly the same as that obtained by printing the same print data on a vertically long sheet of paper.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the printer of the present invention, FIG. 2 is a block diagram showing a print data read address generation section in the print data sending section 13 of FIG. 1, and FIG. 3 is a block diagram showing the printing of paper. 4 is an explanatory diagram showing the printing state on paper that is vertically long with respect to the paper running direction. FIG. 5 is an explanatory diagram that shows the printing state on paper that is horizontally long with respect to the paper running direction. FIG. 6 is an explanatory diagram showing the address positions corresponding to the print areas of the drawing memory 12 shown in FIG. 1, and FIG. 7 is a diagram comparing the results of printing on vertically long paper and the results of printing on horizontally long paper. DESCRIPTION OF SYMBOLS 11... Drawing control part, 12... Drawing memory, 13... Print data sending part, 14... Print part, 21... Address register 22... Print data address counter, 23...・Count method circuit.

Claims (1)

[Claims] 1. It is possible to print on paper that is vertically long and horizontally long with respect to the running direction, and it has a printing means that prints dot-developed data in a drawing memory that corresponds to the printable area of the paper. In the printer, a drawing control means detects a reference position of the printable area according to the running direction of paper, and develops print data into dots from an address position of the drawing memory corresponding to the reference position; 1. A printer comprising: data sending means for sequentially reading developed data from a reading start address according to the running direction of paper and causing the printing means to print the read data.