JPS59135170A - Surface rotation printing system - Google Patents

Abstract

PURPOSE:To provide the titled system having a proper freedom at a high speed with the limited hardwares by reading out printing pattern information corresponding lattices at the printing to performing the rotation and the shifting characters after it is memorized into memory address groups of a page memory. CONSTITUTION:An effective printing area 12 of a printing paper is divided into a plurality of lattices g1 where the character origin of a plurality of characters does not exists within the same lattice and printing information is memorized enough to indicate a lattice printing data into a memory address group of a page memory 5 corresponding to each lattice position. When a surface rotation is performed for a broad width-wise printing by inserting a paper from the direction of the narrow width thereof, a printing data read out from a font memory 6 is translated into the rotation of characters with a pivot control section 7 and the printing data is shifted with a shift control section according to a deviation between the lattice g1 and a character frame. The printing data is memorized into one lattice line unit of a line buffer memory 9 and fed according to the demand therefor from a printing mechanism 11.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a surface rotation printing method for a printing apparatus that is small and prints in units of pages with high printing speed.

(Prior art) Conventionally, in order to perform wide direction printing with a small printing device in which printing paper can be inserted from the narrow direction (portrait direction) but not from the wide direction (horizontal direction), it is necessary to Use this software to replace the print data or change the character pitch on the page.

This is only possible when the line pitch is fixed and the centers of the printed characters are aligned horizontally and vertically in a regular arrangement. The printing data is rotated within the printing device, which has disadvantages such as the processing time of the host device being large, making it impossible to increase the printing speed, and the lack of flexibility in the printing position.

(Object of the Invention) The present invention has been made in view of this point, and provides a high-speed surface rotation method with a high degree of freedom in a small-sized printing device by adding a small amount of hardware. .

(Structure of the Invention) The present invention provides a storage address group corresponding to each grid position when the effective printing area of printing paper is divided into a plurality of grids in which the character origins of two or more characters are not located in the same grid. A storage memory for storing print pattern information in the grid, a font memory for storing print data corresponding to character codes in the print pattern information, and a character rotation instruction in the print pattern information. If there is a pivot control unit, the print data read from the font memory is rotated, and if there is no character rotation instruction, the characters are not rotated, and the print data sent from the pivot control unit is rotated according to the print pattern information. A shift control unit that shifts according to position information, a line buffer memory that stores print data shifted by the shift control unit for at least one grid line, and a microcomputer system that controls these. The first printing pattern information, including the character code transferred from the host device, the presence or absence of rotation of one character in the printing position, etc., is transferred to the microcomputer.
The system converts the information into second printing pattern information that can be stored in page memory, and divides the effective printing area of the printing paper into a plurality of grids in which the character origins of two or more characters do not overlap. The printing pattern information is stored in the memory address group of the page memory corresponding to each grid position at the time, and when printing, the printing pattern information of the cylinder 2 is sequentially read from the hard memory by the microcomputer system, and this second If there is a character rotation instruction in the print iE turn information, the print data corresponding to the character code is read from the font memory, sent to the Pigit control section, and the pivot control section performs character rotation. The shift control section shifts the print data based on the position information in the second print/turn information and stores it in the line buffer memory, and also sends it to the control section. If there is no character rotation instruction, print data corresponding to the character code is read from the font memory, sent to the pivot control section, and sent to the shift control section without performing character rotation in the pivot control section.・The control unit shifts the print data based on the position information in the second print/turn information, stores it in the line buffer memory, and shifts the print data in the line buffer according to the print data request signal from the printing mechanism unit including the print head. - It reads print data from memory, sends the print data sequentially to the printing mechanism section, and performs printing. A detailed explanation will be given below according to examples.

(Embodiment) FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIGS. 2 to 6 are diagrams for explaining FIG. 1.

In FIG. 1, reference numeral 1 denotes a printing device that performs printing based on print information transferred from a device (not shown) that controls printing (hereinafter referred to as a higher-level device), and an interface section 2. Micro computer system 3. Program memory 4
．． Page memory 5° Font memory 6, Pivot
Control section 7, shift control section 82-row buffer memory 9. Parallel/serial converter 10. Printing mechanism interface section 11. and a printing mechanism section (not shown) including a print head. The interface unit 2 receives print position information transferred from a host device (not shown), character codes representing printed characters, print pattern information including whether or not to rotate characters, print start, print stop, LF, etc.
(line feed), CR (return), FF (page feed), etc., to the microcomputer system 3, or status information of the printing device 1 from the microcomputer system 3. It has an interface for transferring data to higher-level devices. The micro-combinator system 3 preferably uses a microcomputer that performs high-speed calculations and generates at high speed a memory address in the program memory 4 that stores the next instruction in accordance with the operating procedure stored in the program memory 4. It consists of a sequencer, and according to the operating procedure stored in the program memory 4, print information transferred from a host device (not shown) via the interface section 2 is decoded and the page memory 5. Font memory 6, pivot control section 7. Shift control section 8, row buffer memory 9
．． The printing mechanism interface section J1 is controlled to perform a printing operation, or the status information of the printing device 1 is transferred via the interface section 2 to a higher-level device (not shown). The program memory 4 is a storage device that stores the operating procedures of the printing apparatus 1 as described above. Page memory 5 is a character code and print position 2 transferred from a host device (not shown).
Print pattern information (hereinafter referred to as first print pattern information) including whether or not character rotation is to be performed is stored in a microcomputer.
At least one rewritable storage device that stores printing pattern information (hereinafter referred to as second printing pattern information) converted by the system 3 into a form that can be used in the printing device 1.
It has a storage portion capable of storing second print pattern information for one page. A detailed explanation of the page memory 5 will be given later in the explanation of FIG. 2.

The font memory 6 is a storage device that stores print data corresponding to character codes in the second print pattern information. If there is no character rotation instruction in the second print pattern information, the pivot control unit 7 shifts the print data read from the font memory 6 as is, so that characters as shown in FIG. 3(c) can be printed.・The print data is sent to the control unit 8, and when there is a character rotation instruction, the print data read from the font memory 6 is converted and shifted so that characters as shown in FIG. 3(e) or 3(f) can be printed. - This is a device that performs character rotation of so-called print data sent to the control section 8 as necessary. A detailed explanation of the pivot control section 7 will be given in the explanation of FIG. 3 below.

The shift control unit 8 is a device that shifts the print data sent from the pivot control unit 7 based on the position information (horizontal shift, vertical shift) in the second printing/two-turn information. A detailed explanation of the shift control section 8 will be given later in the explanation of FIG. 4.

The line buffer memory 9 is a rewritable storage device that stores print data sent from the shift control section 7. A detailed explanation of the row buffer memory 9 will be given later in the explanation of FIG. 5.

Parallel/serial converter 10 ID row buffer.

This device converts parallel print data output from a memory into serial print data, and transfers the serial print data to a print mechanism (not shown) in response to a print data request from the print mechanism. Printing mechanism interface section 1
1 is print start, print stop, and LF from a host device (not shown)
, CR, FF, etc. are sent to a printing mechanism unit (not shown) in an appropriate format. Alternatively, an interface unit receives and receives status information from a printing mechanism unit (not shown) in an appropriate form, and controls the timing of sending print data to the printing mechanism unit (not shown) in response to a request from the printing mechanism unit (not shown). This is a device consisting of a data transfer circuit.

FIG. 2 is a diagram for explaining the target memory 5 in detail. In FIG. 2(a), reference numeral 12 indicates a place on the printing paper where printing is actually possible (hereinafter referred to as an effective printing area), and a plurality of grids g ( i=0 to mXn), and one lattice has, for example, a 1/4 character dog width. The information table (the second printing/turn information) related to this lattice printing pattern is -partial/memory 5
Since the second printing/o-turn information of one grid line (horizontal direction) of the effective print area is stored in four consecutive memory addresses corresponding to the grid, the t×m address,
Therefore, 7XmXn addresses are required to store all the second print pattern information within the effective print area. Second
13 in Figure (a) indicates the storage space of the target memory 5;
A size of at least l x m x n, i.e., A
It has address XmXn. Further, the relationship between the extension memory 5 and the second print pattern information is shown in FIG. 2(b). Second
In Figure (b), the left diagram spatially represents a part of the memory addresses of the page memory 5, with N, N+8, N+16 on the left side.
, ... represent memory addresses, gi, gi+j
.

g1+2. ...g, +7 represent the corresponding grid number of the effective print area. Here, 1 is an integer from 0 to mxn4. The figure on the right shows the second print pattern information of grid g, and shows the case where it is stored in eight consecutive addresses. In this case, the above number is 8, and the storage addresses of the bake memory 5 must be at least 8XmXn addresses. Further, the numbers O1., 7 at the top of the right diagram indicate the bit width of the first location of the Eno memory 5, and here the bit width of 1 byte (8 bits) is indicated. Next, the second print/gut turn information shown in the right figure will be explained. The top character code 1, together with the next character code 2, specifies the address in the font memory 6 where the print data corresponding to that character code is stored.
It is used to read out the 1/4 character worth of print data stored there. The next horizontal shift, vertical shift is as shown in FIG. 2(c), L2. When L3 is divided into four, the character origins of 1/4 characters P, , P2. P3
...The lattice origin p1 of the lattice that includes PI2 and its character origin
', p21, p3J, horizontal with P12',
Vertical distance Shl + 5112 + Sb2 +
Sb2 + Svl l sv2+Sv3. Sv4
This is used when the shift control unit 8 shifts print data. The next character pitch and line feed pitch in FIG. 2(b) indicate the horizontal character spacing ph and vertical character spacing Pv, respectively, as shown in FIG. 2(c). It is used to print ruled lines K as shown in (c). Next character information 1 and 2 in Figure 2(b)
, 3, 4 are division position 1 when one character is divided into 4 parts
Whether or not to rotate characters.

It provides information such as full-width characters, half-width characters, ruled lines, underlines, and character enlargement 2.

FIG. 3 is a diagram for explaining the pivot control section 7 in detail. In FIG. 3(a), L4 is a normally printed character, L5 is a left-handed printed character, and L6 is a right-handed printed character. FIG. 3(b) is a circuit showing one embodiment of the pivot control section 7, and 14 is a pivot memory;
15 is a parallel-to-serial converter; 16 is an address counter that can be turned up or down to indicate the address (memory address of the pot memory 14); and 17 is an exchange circuit that rearranges the output of the address counter 16 during character rotation. It is. FIG. 3(c) shows the grid G1. G2. A normal character pattern of 32 dots vertically and 32 dots horizontally consisting of G3°G4, FIG. 3(d) is the lattice Gl of FIG. 3(c).

FIG. 3(e) shows a left-rotated character/turn with 32 dots vertically and 32 dots horizontally, and FIG. 3(f) shows a right-handed character/turn with 32 dots vertically and 32 dots horizontally. Next, Figure 3 (
Character rotation will be explained using the grid Gl in c) as an example.

In FIG. 3(b), the parallel print data 18 sequentially sent from the font memory 6 is sequentially converted into serial print data by the parallel-serial converter 15, and the clock 19 is sequentially applied to the address counter 16 to generate the data. Using the sequential address signals (0, 1° 2, . . . , 255) as storage addresses in the pivot memory 14, the serial print data corresponding to 1/4 character is sequentially stored in the pivot memo IJ 14. That is, print data corresponding to 1/4 character is sequentially stored in the pivot memory 14 in the direction of arrow A in FIG. 3(d) in lines 1, 2, . . . , 15, 16. Therefore, the storage space of the pivot memory 14 contains data as shown in FIG.
) is memorized. If there is no character rotation, the address counter 16 is set to up mode, the exchange circuit 17 is operated, and the memory addresses of the pivot memory 14 are sequentially changed to addresses (0, 1, 2, ..., 255). That is, one line in the direction of arrow A in FIG. 3(d).

Scan 2 lines, 15 lines, 16 lines, pivot, etc.
Data is read from the memory 14, and the read serial print data is sent to the shift control section 8 in FIG. Therefore, a normal character pattern such as grid G1 in FIG. 3(c) is printed. Also, when counterclockwise rotation is instructed, the address counter 16 is set to up mode and
By operating the change circuit 17, the storage addresses of the pivot memory 14 are scanned in the direction of arrow B in FIG. 14, and sends the read serial print data to the shift control section 8 shown in FIG. Therefore, a counterclockwise rotation character pattern such as the grid G1 in FIG. 3(e) is printed. If clockwise rotation is instructed, the address counter 16 is set to the down mode and the exchange circuit 17 is operated to change the memory address of the pivot memory 14 by 1 in the direction of arrow C in FIG. 3(d). Row, 2 rows,...
Scan the 15th and 16th columns and read the data from the pivot memory 14.

The serial print data read by Party B is sent to the shift control section 8 in FIG. Therefore, a clockwise rotation character/guturn as shown in FIG. 3(f) is printed.

FIG. 4 is a diagram for explaining the shift control section 8 in detail. FIG. 4(a) shows the character origin P1 of 1/4 character of character L7. P2, P3, P4 and their character origins P, , P2゜P3. The lattice origins PI'+P2', P3', and p4' of the lattice including P4 are at the same position, that is, the horizontal shift (Sh) in the second print pattern information stored in the target memory 5.

Figure 4 (b) shows the case where vertical shift (SV) is zero.
) shows the case of 5h=lo dot and 5v-12 dot. In order to print as shown in FIG. 4(b), one dot line (16 dots) of 1/4 character is read out from the Vivo/1 control section 7 in FIG. 1, and shifted according to the Sh and Sv. Must. FIG. 4(c) is a diagram for explaining the shift operation. In Fig. 4(c), "Q" and "D" are respectively zero data,
Indicates print data. In order to perform such a shift operation, for example, a 5N device manufactured by Texas Instruments, which has a serial input, can shift right and left, and has a clear terminal, is required.
The shift control unit 8 may be constructed by connecting four 74198 to form a 32-bit shift renostar. In the shift control section 8 configured in this manner, the vertical shift l-8vO value shown in FIG. The print data that was created will be stored. Therefore, from p and l to YI in FIG. 4(b), the shift control section 8 is cleared and the fourth
The print data in Figure 4 (a) and Yl in Figure 4 (b)
From Y2t, the pivot memory 14 in FIG. 3(b)
One dot line (16 dots) of 1/4 character is read out sequentially from 1/4 character, and one dot line of 174 characters is sequentially set in the shift recorder (not shown) of the shift control unit 8 as shown in (b) of FIG. 4(c). Then, in Figure 4(c) (
As shown in Fig. 4(c), the print data in (c) of Fig. 4(c) is transferred by sequentially shifting to the right by the number of Sl in accordance with the horizontal shift Sh, and inserting data ``O'' into the shifted position. 4
From Y2 to Yat in FIG. 4(b), the shift control unit 8 is cleared, the print data in FIG. 4(c)(a) is sent to the line buffer memory 9, and the grid of character L7 in FIG. Grid gl + g2 of four effective printing areas including G1
．． g4. g5 print data line/gutufa/memo I
) is stored in 9. Next, in the same way, font memo 1
The print data of the grid G2 is read from the glue and the grids g2+g3 of four effective print areas including the grid G2 of the character L7 are read out.
g51 The print data of g6 is stored in line Gutufa memo 1-9. Here, the grid g2+g5 is each character L7
Since both the lattices Gl and G2 are shared, the lattice g2 . The print data corresponding to g5 is superimposed A-) on the already stored print data and stored. In this way, the effective printing area grid g+,
All of the print data for one grid line including gz+g3 and part of the print data for one grid line including grids g4+g5+g6 are stored in the row/Sy file memory 9. Next, when the line buffer memory 9 becomes able to accept print data, the rest of the print data of one grid line including grids g4+g5+g6 and all of the print data of one grid line including grids g7+g81 and g9 are processed in the same way. The font is read out from the font memory 6, shifted by the shift control unit 8, and stored in the line font memory 9. Here, the grids g4+g7 are the grids G l and G of the character L7, respectively.
3, and the grid gs+gs is the grid Gl of the letter L7, both G3 and G2. Both G4 and G6
1g9 are the grids G2.1g9 of the letters L7, respectively. Since both G4 are shared, the lattice g4+gs
The print data corresponding to one lattice line including +g6 is stored superimposed on the already stored print data.

FIG. 5 is a diagram illustrating in detail one embodiment of the row buffer memory 9. As shown in FIG. In FIG. 5, 20 indicates four memories LM1. , LM2, LM3, LM4 write and read addresses ADSI, ADS2, A
DS3.

Chip select C8i, C82, C33°C34 for generating ADS4 and selecting each of the four memories.
Control etc. are performed by signals given from the microcomputer system 3 via line 22 and from the printing mechanism interface section 11 via line 2. This is the row/output read/write control performed by the signal applied via '3. 21 is a data line from the Zoft control section 8; 24 has the letters G1, G2°G3. This circuit is used to superimpose print data when two or more G4s exist. The line buffer memory 9 includes four memories LM, each memory storing print data for one grid line of printing paper, as shown in the figure.
I, LM2, LM3, LM4, and during printing, the print data of two grid lines of the printing paper are stored in the four memories LMI, LM2... LM3゜LM
4, one of the two memories corresponding to the grid line to be printed is selected, the print data is read therefrom, and the print data is transferred to the parallel-serial converter 10. Serial print data is sent to the printing mechanism (not shown) and printed. In this way, 1 of the printing paper
When a grid line is printed, one memory corresponding to the grid line to be printed is selected from among the two memories, the print data is read therefrom, and the data is displayed via the parallel-serial converter 10. Serial print data is sent to the printing mechanism section for printing. Also, four memories LM
I,'LM2. LM3. When two memories in LM4 are empty (print data can be accepted), select those memories and transfer the desired print data to font memory 6,
Pivot control section7. The data is received via the shift control unit 8 and similarly stored in these two memories. In this way, four memories LMI, LM2 . LM
3. The row buffer memory 9 operates to store print data when one or more of the remaining three memories becomes empty while one of the LMs 4 is alternately read-only.

Next, the printing operation will be explained.

First, the surface rotation operation will be explained with reference to FIG. 6(,).

In FIG. 6(a), 12 is the effective printing area of the printing paper;
Q is the printing origin, Q' is the printing sub-origin gl+g2+...
is a grid (solid line) in the effective printing area 12, Gl.

G2. . . . is a grid (dotted line) whose units are 1/4 characters when one character is divided into 4, and Pl + p2 + . . . is a lattice G1 whose units are 1/4 characters. G2. The origin of ..., P, l, P2/, ... is the effective printing area 1
The origin of the lattice gIIg2I°°° in 2) Arrow XQ + is the effective printing area 12, that is, the moving direction of the printing paper (not shown).During printing, the character code for the character "'1", printing position 2 character rotation, etc. are determined from the upper level device (not shown) based on the printing origin Q. 1st including
The microcomputer system 3 receives the printing information and generates memory addresses in the memory 5 corresponding to the nine grids gl1g21...+gs in the effective print area 12 including the characters II, I, I+. In addition, a grid G1 whose units are 1/4 characters. G.? , G3°G4 origin p, ,
P21 p3. Find p4 and find the origin P, , P2゜P3
．． The origin P1'P of the grid within the effective printing area 12 including P4
2', P3', horizontally shift the distance from P4',
It is obtained as a vertical shift and stored in the page memory 5 as shown in FIG. 2(b). In this case, the origin pl+ p2+ of the lattice Gl, G2, G3, G4 with 1/4 character as a unit
”3 r Grid g2 in the effective printing area 12 including P4
+g3 + gs + special character information indicating that it is necessary to read print data from the font memory 6 is stored at the memory address of the page memory 5 corresponding to get.
set the specified flag), and conversely, 1/4
Lattice Gl, G2', G3 . Origin of G4 P1゜P21 P31 Grid gl in effective printing area 12 that does not merge P4 + g41g71gs l' gs
The memory address of page memory 5 corresponding to
Remember. Next, the character "'2" is sent from the upper level device (not shown).
The microcomputer system 3 receives the first print pattern information for ``, and in the same manner as described above, the second print pattern necessary for the page memory 5 as shown in FIG.
Memorize turn information. In this way, characters II are sequentially sent from the host device (not shown).3. I+1 character 114 I+
The receiver 9 receives the first printing pattern information for the first printing pattern and sends it to the microcomputer system 3.

Second printing pattern information as shown in FIG. 2(b) is stored in the memory 5. Next, when printing is performed by a printing mechanism section (not shown), a grid corresponding to glo I gl and g12° in the effective printing area 12 is printed based on the printing sub-origin Q'.
The second print/turn information is read from the memory address of the font memory 5, and special character information (for example, lattice g+01 gl3) indicating that there is no need to read the print data from the font memory 6 is included in the information. (stored in the corresponding page memory 5), the second print pattern information is read from the memory address of the wave memory 5 corresponding to the next grid in the effective print area 12, and the information is Special character information indicating that print data needs to be read from the font memory 6, for example grid g1□
+ g + □, if there is, one character is 4
Grid G5, G whose unit is 1/4 character when divided
The print data for 1/4 character is read out from the font memory 6 using the character code 1 and character code 2 in FIG. The print data is shifted by the shift control unit 8 according to the horizontal shift and vertical shift values in b) and stored in the line buffer memory 9. Thus 1
/4 character grid G5. Two grid lines including G6 (grid glo + gll of effective printing area 12
+ gl2 +' The grid line containing gl3 and gl4
lattice line) in the direction of arrow XQ + Xi to scan the lattice line glo + gll + in the effective printing area 12
All the print data on the grid line of arrow XQ including gl2 + gl3 and part of the print data on the grid line of arrow X1 including grid g+4 of the effective print area 12 are stored in four memories in the line buffer memory 9 ( LMI, LM2.
LM3. LM4. ) of the two memos IJ (LMI
, LM2). Then, when a request for print data is received from a printing device (not shown), 4 in the row buffer memory 9 that stores the print data of the grid lines indicated by the arrows
Print data is sent from one memory (LMI) among the three memories (LMI, LM2°LM3.LM4). At this time, there are still four memories in the row buffer memory 9 (LMI
, LM2 , LM3 , LM4 ) can be stored in three memories (LM2. LM3. LM4), so a grid of 1/4 characters including G7 and G8 can be stored.
The two grid lines (the grid line including the grid gl of the effective printing area 12 and the grid line including the grid gl5) are indicated by the arrows X1. X
A part of the print data on the grid line of the arrow X1 including the grid g14 of the effective printing area J2 and all of the print data on the grid line of the arrow X2 including the 12 grids g+5 are scanned in the direction of 2. It is stored in two memories (LM2.LM3) of the four memories (LMI, LM2.LM3.LM4) in the row buffer memory 9. Note that the arrow X1 includes the grid g14 of the effective printing area 12 including two or more grids GZ, G2, G3, and G4 each having a unit of 1/4 character.
Four memories (LMI, LM2゜LM
3, LM4) (in the above example, it is LM2, but a fixed memory is not allocated to it), the data is stored in a superimposed manner with the previous data. In this way, arrow XO.

XllX21.''”' Xn-3+
When printing data is read out from the line buffer memory 9 on the lattice lines of Xyl-2+ Obtained by inserting.

Next, the operation when surface rotation is not performed, that is, when paper is inserted from the narrow width direction and printing is performed in the narrow width direction, will be described with reference to FIGS. 6(b) and 6(c).

In FIG. 6(b) and FIG. 6(c), the same parts as in FIG. 6(a) are given the same reference numerals. Figure 6(b), Figure 6(c)
), the printing origin Q and the printing sub-origin Q' are at the same position.

In other words, the scanning direction of print data when printing (arrow
0IXI+... The direction of storing in the memory address group of the wave memory 5 corresponding to the grid (arrows X, Xl, .
...+X1-1 direction) are the same. FIG. 6(b) shows a case where there is no character rotation, and this type of printing is similar to the case of surface rotation in FIG. 6(a), where the first printing/gutturn information (without character rotation) is sent from a host device (not shown). The microcomputer system 3 converts it into second printing A-turn information, stores it in the memory address group of the page memory 5 corresponding to each grid in the effective printing area 12, and when printing, it converts it into second printing A-turn information. Read the print data from the font memory 6 according to the code,
Send to pivot control section 7, pyt? The gutter control section 7 sends the print data to the shift control section 8 without performing character rotation, and the shift control section 8 shifts the print data by horizontal shift and vertical shift, and stores it in the line buffer memory 9, as shown in the figure. In response to a print data request from the printing mechanism (not shown), the print data is sent to the printing mechanism (not shown) and printed, resulting in a print as shown in FIG. 6(b).

Figure 6(c) shows the case where there is character rotation;
) is a case in which there is no character rotation in the second printing/gut turn information.
The difference is that there is a clockwise rotation instruction for T, and the rest is the same.

(Effect of the invention) As explained in detail above, the effective printing area of printing paper is
The character origin of two or more characters is divided into multiple grids in which the character origin does not exist within the same grid, and printing information is sufficient to represent the print data of the grid in the memory address group of the 4-memory corresponding to each grid position. When printing in the wide direction by inserting the paper from the narrow width direction, the print data read from the font memory is rotated using the pivot control section, and the misalignment between the grid of the effective print area and the character frame is adjusted. The shift control section shifts the print data according to the print head, stores it in the row buffer memory in units of grid lines, and transfers the print data to the print mechanism section in response to a print data request from the print mechanism section having the print head. By feeding and printing, it is possible to realize surface rotation printing, which allows printing at any position without being restricted by printing positions, with a small amount of hardware.

Although the present invention has been described using a grid in which the effective printing area is a unit of 1/4 character, the effects of the present invention will not be impaired in any way even if a grid of another size is used as a unit.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIGS. 2(a) to 2(C) are diagrams for explaining the memory in FIG. 1, FIG. 2(a) is a diagram showing the effective printing area, and FIG. Figure 2 (C) shows the horizontal and vertical shift of Figure 2 (B),
FIG. 3 is a diagram showing a character line break pitch. Figures 3(a) to 3(a)
f) is a diagram explaining the pivot control section of FIG. 1, FIG. 3 (,) is a diagram showing normal characters, left rotation characters, and right rotation characters, and FIG. An explanatory diagram of the block part, Fig. 3 (C) is an explanatory diagram of a normal character pattern, and Fig. 3 (d) is an explanatory diagram of a normal character pattern.
Explanatory diagram of the pattern extracted from 4 characters, Figure 3 (e)
is an explanatory diagram of a left-rotation character pattern, and FIG. 3(f) is an explanatory diagram of a right-rotation character pattern. Figures 4(a) to 4(C)
) is a diagram explaining the shift control section in Figure 1, Figure 4 (a) is a diagram showing when the character origin and grid origin are at the same position, and Figure 4 (b) is a diagram showing the character origin and grid origin. FIG. 4(c) is a diagram showing a case where the origin is at a shifted position, and is a diagram showing a shift operation. FIG. 5 is a diagram illustrating the row buffer memory of FIG. 1. Figure 6(a) to Figure 6(C)
is a diagram showing an example of printing, and Fig. 6 (,) is a diagram showing a printing example.
6(b) is a diagram showing a pattern with normal printing and no character rotation in it, and FIG. 6(C) is a diagram showing normal printing with character rotation A? FIG. 6 is a diagram showing a case where there is a turn. 5 knees! ! -no memory, 6: font memory. 7: Pivot control @["+8', shift control section, 9: Row Gusofa "Memory 0 Patent applicant Oki Electric Industry Co., Ltd. Figure 1-1- " Figure 2 (0) Figure 2 (b ) Figure 2 (C) 1) h Figure 5 Figure 6 (0) Figure 6 (b)

Claims (1)

[Claims] In a printing device that prints page by page, an immersion memory stores printing pattern information within a grid in a memory address group corresponding to each grid position when the effective printing area of printing paper is divided into a plurality of grids. , ``A font memory that stores print data corresponding to character codes, a pivot control section that rotates characters, a shift control section that shifts characters, and a line memory that stores print data.
A computer system comprising a computer memory and a microcomputer system for controlling the same, and storing printing and pattern information of each grid in a memory address group corresponding to each grid of the wave memory. A surface rotation printing method characterized by reading print/turn information from page memory and rotating characters and shifting by one character when printing.