JPH0647958A - Vertical writing control system in printer and device therefor - Google Patents

Abstract

PURPOSE: To facilitate printing of a vertical written sentence of Japanese, Chinese of Korean by providing a vertical writing buffer, a step for determining the number of lines of a horizontal writing code data and the maximum number of characters in a line, a vertical writing conversion step for rearranging and storing a coded vertical writing data, and a step for printing the vertical writing data. CONSTITUTION: When a printer 20 receives a horizontal writing coded document data, a parallel/series interface section 22 converts the document data into a series data which is then stored in a host buffer 23. Subsequently, the number of lines and the maximum number of characters in a line of the horizontal writing code data are determined and the horizontal writing code data is rearranged, according to the number of lines and the maximum number of characters in a line, into a vertical wiring data which is then stored in a vertical writing buffer 24. Thereafter, the bits and the vertical writing data and an image data are detected from a symbol ROM 25 and stored in an image buffer 26. Finally, a bit map image data is outputted to an engine interface 27 and printed vertically.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing method of a printer, and more specifically, in a printer having a page buffer, it receives horizontal output data from a host computer and converts it into vertical writing data. The present invention relates to a vertical writing control system for a printer and an apparatus for the same, which can easily print in vertical writing.

[0002]

2. Description of the Related Art In the case of printing characters, numbers and various symbols with a conventional printer, as shown in FIG. 7, first, at the end of each line, a carriage return (C
The coded data (φa) including the coded data (φa) indicating the R) and the coded data (φa) including the coded data indicating the line feed (LF), and the coded data such as various symbols are the host. When output from the computer to the printer, the printer receives and stores the transmission data of the host computer, and converts the stored coded data into bitmap image data in byte units or word units. It has been designed to store and output the printable visible bitmap image data to perform printing.

[0003]

However, in such a conventional printer, when the host computer outputs the data encoded into the horizontal writing symbols, the horizontal writing symbol data of those computers is output to the printer. Since there is no device for converting the data, vertical writing cannot be performed, and Japanese, Chinese, and Korean sentences cannot be printed vertically.

When data encoded vertically is output from the host computer, the printer can print vertically. However, since a normal word processing program is horizontal writing, a separate
There was an inconvenience that it had to be equipped with a vertical writing program and became complicated. An object of the present invention is, when the data encoded in horizontal writing is output from the host computer, the printer converts the horizontal writing data into vertical writing data, and makes it possible to easily print in vertical writing. It is intended to provide a writing control system and its device.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a printer with a vertical writing buffer to obtain the number of lines of horizontal writing code data transmitted from a computer and the maximum number of characters of the line, and the number of lines. And a vertical writing conversion step of rearranging and storing the data encoded horizontally according to the maximum number of characters of the line into the data encoded vertically, and converting the data converted into vertical writing into bitmap image data. And printing in vertical writing mode.

[0006]

When the user sets the vertical writing command in the printer, the printer receives the data encoded and output in the horizontal writing mode from the host computer, rearranges the data into the vertical writing data in the vertical writing buffer of the printer, and Vertical writing data is converted to bitmap image data for vertical writing printing.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, in the vertical writing control device for a printer according to the present invention, a central processing unit 21 that controls the operation of the printer 20 and the central processing unit 2 are provided.
The parallel / serial interface unit 22 for converting the parallel data output from the host computer 10 into serial data under the control of 1 and the serial data of the parallel / serial interface unit 22 are stored and output under the control of the central processing unit. A host buffer 23 and a vertical writing buffer 24 for rearranging and storing the data in the host buffer 23 into vertical writing data under the control of the central processing unit 21.
And a bit map image of pre-encoded data, which is output under the control of the central processing unit 21, and a bit map image according to the vertical writing data of the vertical writing buffer 24 output from the character ROM 25. And an engine interface unit 27 for interfacing the bitmap image output from the image buffer 26 with printing data.

Then, the document data encoded horizontally from the host computer 10 is transferred to the printer 20.
In the printer 20, the data is converted into serial data by the parallel / serial interface unit 22 under the control of the central processing unit 21 and stored in the host buffer 23F. Next, the data stored in the host buffer 23 is obtained by the central processing unit 21 for the number of lines of the horizontally encoded data and the maximum number of characters of the line, and rearranged into vertical writing data according to the number of lines and the maximum number of characters of the line. Vertical writing buffer 24
Stored in. Then, the bit and image data for the vertical writing storage data of the vertical writing buffer 24 are detected from the font ROM 25 and stored in the image buffer 26, and the bitmap image data stored in the image buffer 26 is stored in the engine interface unit 2.
It is output to 7, and vertical writing printing is performed.

The vertical writing control system of the printer according to the present invention will be described in detail with reference to FIGS. 2 to 6. First, the host computer 10
The parallel data transmitted from the input terminal is input to the parallel / serial interface unit 22, converted into serial data, and stored in the host buffer 23 in the data input step (S10). In the data input step (S10), , Data is continuously input in word units, and the host computer 10 outputs data for one page at a time to the printer 20.

For example, one page of horizontal writing data from the host computer 10 "top and bottom CRLF date C"
When the RLFCRLF month CRLF "is transmitted to the printer 20, the transmission data is stored in the host buffer 23 in the printer 20. Here, the" heaven "," ground "," day ", and" month "are stored. "" Represents a 2-byte character respectively, and "CRLF" represents a carriage return (CR) and a line feed (LF). Next, all the data transmitted from the host computer 10 is converted into serial data and stored in the host buffer 23. Then, a step (S20) of obtaining the total number M of lines of horizontal writing and the maximum number L of characters of lines of the document file coded horizontally in the host buffer 23 is performed.

In the step of obtaining the number of horizontal writing lines and the maximum number of characters (S20), first, the maximum number of characters L of the lines having the maximum number of horizontal writing lines, the number of characters L _{O of} each line and the number of horizontal writing lines M are counted. In order to do so, the process of initializing each variable (S21) is performed, and thereafter,
A step (S22) of reading data from the host buffer 23 is performed, and a step (S23) of determining whether the read data is carriage return (CR) or line feed (LF) data is performed. Here, the data read at one time is in word units, and 2 bytes are read at once and processed.

[0012] Then,該判another result, when it is not a carriage return (CR), or a line feed (LF), said line number (L _O) increments the count value (L _O = L _O
+1), and the address (H
-BUFF-Addr) is increased (H-BUFF-Add
r = H-BUFF-Addr + 1) and then read the data in the host buffer 23 (S22)
The process of returning to step S24 is performed. If the read character data is the carriage return (CR),
In the case of line feed (LF), the number of lines M value is increased (M = M + 1) and the process of comparing the maximum number of characters L value with the current number of line characters L _O value (S25). As a result, when the number of characters L _{O of the} current line is larger than the maximum number of characters L, the number of characters L _O of the current line is stored in the maximum number of characters L, and when the number of characters L _{O of the} current line is smaller than the maximum number of characters L, A process of maintaining the maximum character number L value (S26) is performed.

After that, the number of characters L _O is cleared, and the address (H-BUFF-A) of the host buffer 23 is cleared.
ddr) is increased (H-BUFF-Addr = H-BUF
F-Addr + 1), and then the host buffer 23
It is determined whether or not the data is the end of data (EOF), and the process (S27) is returned to the data reading process (S21) until the end of the data (EOF) is reached. That is, when the data shown in FIG. 6 (A) is read and the step of determining the total number M of horizontal writing lines and the maximum number L of lines is performed (S20), "Tenji", "Sun", "Month""4 lines (M = 4)" are obtained, and it can be seen that the maximum line character number L is 2 characters (L = 2) which is the number of characters of the first line "top and bottom".

After the step of determining the number of lines M and the maximum number of characters L in each line (S20) is performed in this way, the data encoded in the horizontal writing is rearranged into the data encoded in the vertical writing and the vertical writing buffer. A vertical writing conversion step (S30) of storing in 24 is performed. In the vertical writing conversion step (S30), first, the variables used for vertical writing conversion are initialized, the data of the currently stored address is read from the host buffer 23, and stored in the register D. A process (S31) of determining whether the data is a carriage return (CR) or a line feed (LF) is performed.

That is, in the determining step (S31),
A step (S31-1) of initializing a variable to count the vertical writing vertical line character number I is performed, and a variable is initialized to count the vertical writing vertical line number H (H ← 0). ) To increase the vertical line character number I (I =
The process of making (I + 1) (S31-2) is performed. Next, after performing a step (S31-3) of initializing a variable (J ← 0) to count the horizontal line character number J for horizontal writing,
The process of reading the data of the currently stored address from the host buffer 23 and storing it in the register D (S31-4) is performed.

After that, the horizontal line character number J is increased (J = J + 1) and it is determined whether the data stored in the register D is a carriage return (CR) or line feed (LF) (S31-). Perform 5). Here, as shown in FIGS. 6 (A) and 6 (B), the vertical line character number I is a variable for the maximum horizontal writing character number L for determining a horizontal line character to be vertical writing, and is for each vertical writing line. It means a character number. In addition, the horizontal line character number J is a variable for determining a horizontal line character to be written vertically, and means a horizontal line-specific character number read from the host buffer 23 and encoded into horizontal writing.

The vertical line number H is the number M of horizontal writing lines for determining the position of the vertical line in which each character is arranged.
Is a variable for. Thereafter, if the result of the determination is that it is not a carriage return (CR) or line feed (LF), it is determined whether the data stored in the register D is the data corresponding to the current vertical writing position, and the vertical writing buffer 24 And the address (H-BUFF-Addr) of the host buffer 23 is increased until the carriage return (CR) and line feed (LF) are detected (H-BUFF-Addr = H-BUFF-Addr).
+1) is performed (S32).

In the process of determining whether the data stored in the register corresponds to the current vertical writing position and storing the data in the vertical writing buffer 24, first, the data stored in the register D is returned by a carriage return (C).
R), if it is not line feed (LF) data, a process (S32-1) of determining whether the vertical line character number I and the horizontal line character number J are the same (J = I) is performed, and the determination is performed. As a result, when the vertical line character number I and the horizontal line character number J are the same (J = I), the data stored in the register D is stored in the vertical writing buffer 24, and the data of the vertical writing buffer 24 is stored. The process of incrementing the address by two (TBUFF = TBUFF + 2) (S32-
Perform 3).

Then, a space (SP = “20”) is written in the increased address of the vertical writing buffer 24, and the address (TBUF of the vertical writing buffer 24 is written.
F) is incremented by 1 (TBUFF = TBUFF + 1) (S32-4). Here, the space is a space for spacing the vertical lines.
Then, the address (H-B
UFF-Addr) is increased (H-BUFF-Addr =
H-BUFF-Addr + 1) to read data, determine whether the data is a carriage return (CR) or line feed (LF), and detect the carriage return (CR) or line feed (LF). Address of the host buffer 23 (H-BUFF-A
ddr) is increased (H-BUFF-Addr = H-BUF
The process of performing F-Addr + 1) (S31-5) is performed.

If it is judged that the vertical line character number I and the horizontal line character number J are the same (J = I), and if they are not the same, the address of the host buffer 23 (H-BUFF- Addr) is increased (H-BUFF-
After performing Addr = H-BUFF-Addr + 1), a process (S32-2) of returning to the process of reading the data of the corresponding address of the host buffer 23 and storing it in the register D (S31-4) is performed.

In addition, the data stored in the register D is a carriage return (CR) and a line feed (L).
In the process (S31) of determining whether it is F), the determination result is carriage return (CR), line feed (L).
F) If it is data, a space (SP) is written in the vertical writing buffer 24 three times, and the vertical writing buffer 24 is written.
Address (TBUFF) increased by 3 (TBUFF-TB
UFF + 3) is performed (S33). That is, the space (SP) is continuously written twice in the vertical writing buffer 24, and the address (TBUFF) is increased by two (TBU).
FF = TBUFF + 2), and then space (S
P) is written and the address (TBUFF) of the vertical writing buffer 24 is incremented by 1 (TBUFF = TBUFF +).
1) Let it do.

Here, the space (SP) is written twice in succession in order to place a space instead of the double-byte character in a line without the double-byte character.
The space (SP) is written once in order to set a space between the vertical lines. In this way, the vertical writing buffer 24
Address (TBUFF) is increased three times, or after data is stored in the vertical writing buffer 24, the data in the host buffer 23 is carriage return (CR),
After increasing the address of the host buffer 23 until line feed (LF) is performed, the vertical line number H is increased (H = H) in order to arrange character data on the next vertical line.
+1) to determine whether the increased post-line number H is the same as the horizontal line number H (H = M).

If not, the host buffer 2
3 address (H-BUFF-Addr) is increased (H-
BUFF-Addr = H-BUFF-Addr + 1) is read, the data in the host buffer 23 is read, and the process of returning to the process of determining whether it is a carriage return (CR) or line feed (LF) (S31) is repeated (S34). Then do.

When the vertical line number H and the horizontal writing line number M are the same (H = M), the vertical line character number I and the horizontal line maximum character number L are the same (I =
If it is not the same, the carriage write (CR) and line feed (LF) data is written in the vertical writing buffer 24, and the address (TBUFF) of the vertical writing buffer 24 is increased by two (TBUFF).
= TBUFF + 2), the address of the host buffer 23 is initialized (H-BUFF-Addr), and then the data of the host buffer 23 is read to determine whether it is a carriage return (CR) or line feed (LF). The process of returning to the determining process (S31) (S35) is repeated.

If the vertical line character number I and the horizontal line maximum character number L are the same (I = L), after the address of the host buffer 23 is increased, the increased address When data is read and stored in the register D, it is determined whether the data is an end-of-data (EOF) code, and when the end-of-data (EOF) is reached,
The end of data (EOF) is written in the vertical writing buffer 24
(S36) is performed to complete rearrangement into vertical writing. Here, the end of the data (EO
The code in F) is not shown, but is assumed to be included at the end of the document file.

Thereafter, the vertical writing data stored in the vertical writing buffer 24 is used to read the bitmap image data from the font ROM 25 and store it in the image buffer 26. The bitmap image data stored in the image buffer 26 is stored in the image buffer 26. A printing step (S40) of performing vertical writing through the engine interface unit 27 is performed. That is, the horizontal writing data stored in the host buffer 23 as shown in FIG.
The data is rearranged into the vertically written data as shown in FIG. 7B, and is performed as follows. First, S31 ← S
After performing the process of 32, "heaven" is arranged on the first horizontal line (I = 1) of the first vertical line (H1) shown in FIG. 6 (B) and a space (SP) is placed, and then S32- Carry out Carriage Return (C
R) and line feed (LF) to move to the next step (S34).

Thereafter, the process of S34 is performed to perform the above S3.
Returning to the process of 1-3, the process of S32 is performed again, "day" is arranged in the first vertical line (I = 1) of the second vertical line H2, a space (SP) is placed, and a carriage return (CR) is performed. ), And the line feed (LF) is performed to move to the next step. After that, since the carriage return (CR) and line feed (LF) are immediately read, the step S33 is performed and two spaces (steps) are written to leave a blank on the first horizontal line of the third vertical line H3. And add a space for the next vertical line spacing,
Move on to the next process.

Then, by the above process, the fourth vertical line H
"Month" is arranged on the first horizontal line of 4, and
Since H = M = 4 in the process of, the process moves to the process of S35, and in the process of S35, a carriage return (CR) at the end of the "month" of the first horizontal line of the fourth vertical line H4,
A line feed (LF) is written and the vertical line is initialized (S31-2).

When H = 0, "heaven" is displayed on the first vertical line H1, "second" is displayed on the second vertical line H2 when H = 1, and "day" is displayed on the third vertical line H3 when H = 2. SPSP "
When H = 3, "month" is arranged on the fourth vertical line H4 on the horizontal lines of I = "1" respectively, and then H = H + 1 is performed in the process of S34, and then H = M , Said I
"CRLF" is placed at the end of the line of "1", and then S31-3 to S31-5, S32-1, S32-2
And then pass through the "heavens", and the process of S32-3 is performed to arrange "grounds" on the second horizontal line (I = 2) of the first vertical line (H = 1), After placing SP, carriage return (CR) and line feed (LF) move to the next step.

Then, after performing the process of S34, the process of S3 is performed.
Returning to the process of 1-3, S31-3 to S31-5, S32-
Carry out a carriage return (CR) and a line feed (LF) after performing steps S1 and S32-2 and passing "Sun", and again performing steps S31-3 to S31-5 and S32-1 respectively. Then, the process of S33 is performed to write the space SPSP twice to put a space on the second horizontal line of the second vertical line H2, and to add one space to make a space with the next vertical line, Move on to the next process. Then, S34, S31-3 to S31-5, S32
-1, S32-2, S33 are performed respectively to write a space (SPSP) twice in order to put a blank in the second horizontal line of the third vertical line H2, and once for the interval of the next vertical line. Add space for.

After that, the steps S34, S31-3 to S are again performed.
31-5, S32-1, S32-2, and S33 are respectively performed to write a space (SPSP) twice to put a blank space on the second line of the fourth vertical line H4, and then 1 again.
Add space for times. After that, since H = M = 4 and the second horizontal line (I = 2) and the maximum number of characters (L-2) are the same, the process of S36 is performed to end the data (EOF).
Is written, and the vertical writing conversion is completed. Therefore, FIG.
The data stored in horizontal writing as shown in FIG.
As shown in (B), the data is arranged in vertical writing data and printed vertically.

Although the method of controlling the vertical writing from the left side to the right side has been described above, as shown in FIG. 6C, the vertical writing is controlled from the right side to the left side by a similar method. There is also.

[0033]

As described above, in the vertical writing control system for a printer and the apparatus thereof according to the present invention, the horizontal writing data input from the host computer is used in the vertical writing buffer provided in the printer. As it is designed to be converted into coded data for writing and printed vertically, it is possible to easily print Japanese, Chinese, and Korean sentences vertically according to the user's request. It has the effect of being extremely convenient.

[Brief description of drawings]

FIG. 1 is a block diagram of a vertical writing control device of a printer according to the present invention.

FIG. 2 is a flow chart of a vertical writing control method of the printer according to the present invention, showing a process in which the printer receives the data of the host PC and obtains the number of lines and the maximum number of characters.

FIG. 3 is a flowchart showing an initialization process and a blank line processing process in a vertical writing conversion stage of the present invention.

FIG. 4 is a flowchart showing a character arrangement processing process in a vertical writing conversion step of the present invention.

FIG. 5: CRLF and EOF in the vertical writing conversion stage of the present invention
7 is a flowchart showing an arrangement process and a printing process.

6A and 6B are explanatory diagrams of a vertical writing control mode of the printer according to the present invention, FIG. 6A is an explanatory diagram of a mode of data transmitted from a host PC, and FIG. 6B is a host PC transmission shown in FIG. Explanatory drawing of the format in which data is received from the printer and written vertically from the left side to the right side, (C) is the host P shown in (A)
FIG. 8 is an explanatory diagram of a format in which a printer receives C transmission data and vertically writes from the right side to the left side.

7A and 7B are explanatory diagrams of a horizontal print format of a conventional printer, FIG. 7A is an explanatory diagram of a data format transmitted from a host PC, and FIG. 7B is a printer receiving the host PC data shown in FIG. It is an explanatory view of a style of performing horizontal writing.

[Explanation of symbols]

 10 ... Host computer 20 ... Printer 21 ... Central processing unit 22 ... Parallel / serial interface section 23 ... Host buffer 24 ... Vertical writing buffer 25 ... Character ROM 26 ... Image buffer 27 ... Engine interface section

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location G06F 3/12 H 15/20 564 M 9288-5L

Claims (9)

[Claims] 1. A vertical writing control device for a printer, comprising:
A central processing unit (2 that controls the operation of the printer (20)
1) and a parallel / serial interface unit (22) for converting parallel data output from the host computer (10) into serial data under the control of the central processing unit (21).
And a host buffer (23) for storing the data serially converted by the parallel / serial interface unit (22) under the control of the central processing unit (21) and outputting the stored data.
And a vertical writing buffer (24) for rearranging the stored data of the host buffer (23) into vertical writing data under the control of the central processing unit (21) and storing the same, and a bitmap image for pre-encoded data. A font ROM (25) which is stored and output under the control of the central processing unit (21), and a font ROM under the control of the central processing unit (21)
An image buffer (26) for storing a bitmap image according to the vertical writing data of the vertical writing buffer (24) output from (25), and a bitmap image output from the image buffer (26) to the central processing unit (21). A vertical writing control device for a printer, comprising an engine interface unit (27) for interfacing with printing data under the control of (1). 2. A vertical writing control method for a printer, comprising the steps of obtaining the number of lines and the maximum number of characters of a line of a data file output from a host computer (10) and encoded horizontally, and the number of lines of the horizontal writing data. And the step of converting to vertical writing data so that the number of vertical lines of vertical writing and the number of horizontal lines of vertical writing correspond to the maximum number of characters of the line, and converting the vertical writing data into bitmap image data and printing vertically. And a vertical writing control method for a printer equipped with. 3. The step of obtaining the number of lines and the maximum number of characters of a line from the data file output from the host computer (10) and encoded horizontally, and during each reading of the horizontally encoded file once. A vertical writing storage step of reading the character number (J) data of each horizontal line of the horizontal writing file corresponding to the vertical line character number (I) and storing it at the position of the corresponding vertical line character number (I); Carriage return C after performing the vertical writing storage step once
When the code data of R and line feed LF are stored and the vertical writing storage step is repeatedly performed, and the vertical writing storage step is repeated by the maximum number of characters in the carriage return CR and line feed LF storing step. , A step of reading and storing EOF code data indicating the end of a file, and a vertical writing control method for a printer comprising: 4. The vertical writing control method for a printer according to claim 3, wherein the vertical writing storage step stores a blank between the character data to be stored when the vertical writing storage step is performed. 5. The step of obtaining the number of lines and the maximum number of characters in a line is a process of initializing the number of characters in a line, the number of lines, and the maximum number of characters in a line, respectively, and reading the character data is CRLF. If the character data is not CRLF, the number of characters in the line is counted, and if the character data is CRLF, the number of lines is counted, the maximum number of characters in the line is updated, and the end of the file is determined. The vertical writing control method for a printer according to claim 3, further comprising: 6. A step (S10) of converting parallel data transmitted from the host computer (10) into serial data and storing the serial data in a host buffer (23), and a step of storing the data in the host buffer (23). The step of obtaining the number of lines (M) and the maximum number of characters in the line (S
20) and a step of rearranging the data encoded horizontally according to the number of horizontal lines (M) and the maximum number of characters into data encoded vertically and storing it in the vertical writing buffer (24) (S).
30), and a step (S40) of converting vertical writing data stored in the vertical writing buffer (24) into bitmap image data, outputting the image data through an engine interface unit (27), and performing printing (S40). Vertical control method for printer. 7. The step of determining the number of lines and the maximum number of characters (S20) includes the step of initializing a variable for counting the number of characters of each line, the number of lines and the maximum number of characters of the line (S2).
1), a step of reading character data from the host buffer 23 (S22), and a step of determining whether the read data is a carriage return CR or line feed LF data (S23).
As a result of the discrimination, when it is not the carriage return CR or line feed LF, the count value of the line character number is increased, the address of the host buffer (23) is increased, and then the data of the host buffer (23) is changed. The step of returning to the step of reading (S22) (S24), and the read character data is read by the carriage return C.
When R and line feed LF, the process of increasing the number of lines and comparing the maximum number of characters with the number of characters of the current line (S25); and when the number of characters of the current line is larger than the maximum number of characters, the current A step of designating the number of characters of the line as the maximum number of characters and maintaining the value of the maximum number of characters when the number of characters of the current line is smaller than the maximum number of characters (S26)
After that, the current number of characters is cleared, the address of the host buffer (23) is increased, the data of the host buffer (23) is read, and the end of data (E
(OF), and returns to the data reading step (S22) until the end of the data (EOF) is reached (S22).
27) and the vertical writing control method for a printer according to claim 6. 8. The vertical writing conversion step (S30) initializes each variable for vertical writing conversion, stores the currently designated address data of the host buffer (23) in a read register, and stores the data. Is a carriage return CR or line feed LF (S31), and if the result of the determination is not a carriage return CR or line feed LF, the data stored in the register corresponds to the vertical writing position. And storing it in the vertical writing buffer (24) and increasing the address of the host buffer (23) until a carriage return CR and a line feed LF are detected (S3).
2) and, as a result of the determination, if the data stored in the register is a carriage return CR and a line feed LF, a step of writing a space in the vertical writing buffer (24) and increasing the address by 3 (S33), After performing the step (S32) or (S33), the vertical writing line number (H) is increased (H =) until the vertical writing line number (H) becomes the same as the horizontal writing line number (M).
H + 1) and increase the address (H-BUFF-Addr) of the host buffer (23) (H-BUFF-
After performing Addr = H-BUFF-Addr + 1), reading the data of the host buffer (23), determining the carriage return CR and line feed LF, and returning to the step (S31) (S34), and thereafter. When the vertical line number (H) value becomes the same as the horizontal line number (M) value, it is determined whether the vertical line character number (I) and the horizontal line maximum character numerical value are the same, If not, the vertical writing buffer (2
4) The carriage return CR and the line feed LF data are written in 4), the address of the vertical writing buffer (24) is increased by two, the address of the host buffer (23) is initialized, and then the host buffer (2).
The process of returning to the process (S35) of reading the data of 3) and determining whether it is the carriage return CR or line feed LF (S35), the vertical line character number (I) and the horizontal line maximum character numerical value are the same. And the host buffer (23)
The address is increased, the data is read and stored in the register, and it is determined whether the data is an end-of-data (EOF) code and the end-of-data (EOF) is detected.
The end of data (EOF) is set to the vertical writing buffer (2
7. The vertical writing control method for a printer according to claim 6, further comprising the step (S36) of writing in step 4). 9. The step (S32) of determining whether the data stored in the register corresponds to the current vertical writing position and storing the data in the vertical writing buffer (24), the data stored in the register being a carriage return C.
When it is not R or line feed LF data, a step of determining whether the vertical line character number (I) and the horizontal line character number (J) are the same (S32-1), and the determination result is that they are not the same. , Incrementing the address of the host buffer (23), reading the data of the corresponding address of the host buffer (23) and storing it in a register (S32-2), and the vertical line character number ( I) and the horizontal line character number (J) are the same, the data stored in the register is stored in the vertical writing buffer (24) and the address of the vertical writing buffer (24) is increased by two. In the step (S32-3), a space is written in the increased address of the vertical writing buffer (24), and the address of the vertical writing buffer (24) is increased by one. Increased process (S32-4), the address of the host buffer (23) to (H-
BUFF-Addr = H-BUFF-Addr + 1), the data is read, and the data is returned by the carriage return C.
It is determined whether it is R or line feed LF, and the address of the host buffer (23) is increased (H-B) until a carriage return CR or line feed LF is detected.
The vertical writing control system for a printer according to claim 8, further comprising a step (S32-5) of performing UFF-Addr = H-BUFF-Addr + 1).