JPS62104769A - Image recorder - Google Patents

Abstract

PURPOSE:To permit high-density, high-quality letters to be printed by a method in which a correcting pattern for letter patterns of enlarged width is developed, the then the feed pitch of printing dots of a printer is made smaller for printing a corrected letter pattern so developed. CONSTITUTION:When a corresponding letter code is input corresponding to letters to be developed from a key group, a letter pattern information stored is called out of a fixed memory 2 by CPU1, and the width of image pattern is magnified several times unit dot and then developed and stored in a temporary memory 3. The developed pattern is also called out of the memory 3 by CPU1, and a recording head is driven in the moving direction at a fraction of a pitch of dot for printing high-quality letters.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an image recording device capable of recording high-density, high-quality images such as characters.

[Prior art]

In conventional recording devices of this type, the developed character pattern shape and the output printed character pattern shape are
There are many printing methods compatible with l:1.

[Problem that the invention seeks to solve]

However, in this method, in order to improve the quality of the printed character pattern, when developing the correction pattern, the correction pattern must be developed within the frame of the character pattern shape, so there is a limit to the printing quality. There was a problem with putting it away.

[Means for solving problems]

The present invention solves the above-mentioned problems by developing a correction pattern in which the width of the character pattern is increased in advance, and printing the developed correction character pattern by reducing the feeding pitch of printing dots of the recording means (printer). Our goal is to provide a device that enables high-density, high-quality character printing.To this end, we developed a recording head that records images using a dot matrix, and an image pattern width that is expanded to multiple times the width of a unit dot. and means for driving the recording head in the rotary direction at a pitch of a plurality of unit dots during recording based on information from the storage means.

[Embodiment] The present invention will be described in detail below with reference to the drawings showing a preferred embodiment.

FIG. 1 is a block diagram showing the overall configuration of an embodiment of the present invention. Here, 1 is the central processing unit (CPU)
, 2 is a fixed storage device, 3 is a temporary storage device, 4 is a group of keys such as letters, symbols, numbers, etc. on the keyboard, and 5 is a printing device. These elements 2 to 5 are connected to the CPU via the bus.
Connected to I.

The CPU controls the entire device according to the program of the control means shown in Fig. 5, which is stored in advance in the internal ROM (read-only memory), and reads the character code corresponding to the character to be developed manually from a group of keys. In response to a human input signal, stored character pattern information is called from the fixed storage device 2, and a correction pattern whose width has been expanded is developed in the temporary storage device 3. The CPIJ1 also performs operations such as controlling the developed pattern to be read from the temporary storage device 3 and printed on the printing device 4.

Furthermore, the CPU includes the above-mentioned ROM (not shown) in which a control program is stored in advance, and a RAM used for writing and reading data necessary for control.
(random access memory), a print driver for driving the printing device 4 to print the output data from the CP[11], and the like are built-in.

FIG. 2 shows an example of the arrangement of character pattern information stored in the fixed storage device 2 described above. As shown, the symbol M1
Character number (address) indicated by r 0OOOJ~r 4
Corresponding to 095J, corresponding character pattern information (symbol M2) is stored, and these are corrected, enlarged, and developed.

Next, the character pattern @′° is expanded and corrected for width expansion in a 32×16 dot matrix, and the print head is printed at a feed pitch of % dots to form the required 16×16 dots. Shape character pattern:
Describe an example of printing.

Figure 3 shows a 32X 16 dot matrix (32 rows 1
An example is shown in which character pattern information is expanded into 6 digits), and this pattern is stored in the above-mentioned temporary storage device 3. In the figure, <3-a> indicates the minimum dot constituting the developed character pattern. <3-b> is 32:
It shows the shape of the character pattern "@°" developed in x16 dot 7 trix, where ■ means dot on and mouth means dot off, which correspond to bit on and bit off which constitute the actual data.

Furthermore, the character pattern is pre-corrected in minimum dot units to improve the necessary quality.

FIG. 4 is an example of a diagram in which the developed pattern described above is printed by the printing device 5 while moving the print head at a pitch of local dots.

An example of the operation of this embodiment configured as described above will be described with reference to FIG. 5.

First, in step S1, a character number corresponding to a required character is input using the key group 5. Then step S2
In step S3, the character number Ml stored in the fixed storage device 2 is compared with the input character number, and a corresponding character pattern is searched for in step S3. If there is no corresponding character, the process returns to step s2, and if there is, the process proceeds to step S4. Step S
In step 4, the retrieved character pattern information (M2) is read.

Next, in step S5, the character pattern is corrected and enlarged using PUl from the 8-input pattern information (see Figure 3<3-b>) and expanded into the temporary storage device 3 (noted in f).
,! )do.

Next, in step S6, the first column of the character pattern array developed in the temporary storage device 3 is read, and then, in step S7, the first column of the read character pattern is printed, and then, in step s8, the print head is rotated by the number of noise dots. send.

Next, in step S9, it is determined whether all the columns of the read character pattern have been printed, and if all the columns have not been printed yet, the process returns to step S6. The process ends if all columns are printed. In this way, by printing the character pattern developed in the temporary storage device 3 (e.g., Fig. 3) at a pitch of % dots in each column, characters with high print quality (e.g., Fig. 4) can be printed. I can do it.

It goes without saying that according to the present invention, a similar high-quality pattern can be obtained for character patterns of any size (nxm dot matrix). In addition, a high-density, high-quality printed pattern can be obtained by performing high correction during pattern development and dividing the print feed pitch as necessary during printing.

〔effect〕

As described above, according to the present invention, a high-density, high-quality recorded image can be obtained by recording an image pattern developed by expanding the shape width in advance by reducing the 8-motion pitch of the recording head. Therefore, the present invention is particularly effective for devices such as word processors that require high quality.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the overall configuration of an embodiment of the present invention, FIG. 2 is an explanatory diagram showing an example of the arrangement of character pattern information stored in the embodiment of FIG. 1, and FIG. FIG. 4 is a diagram showing an example of the shape of the character pattern developed in the temporary storage device, and the character pattern developed in FIG.
X1[A diagram showing an example of printing in the size of an i-dot. FIG. 5 is a flowchart showing an example of the operation according to the youngest son method. 1...CPt1. 2... Fixed storage device, 3... Temporary storage device, 4... Key group, 5... Printing device. Mouth <3-0><3-b> Figure 3 Figure 4

Claims (1)

[Scope of Claims] A recording head that records an image using a dot matrix, a storage device that expands and stores the width of an image pattern to a plurality of unit dots, and a unit dot width during recording based on information from the storage device. an image recording apparatus comprising: means for driving the recording head in the moving direction at a pitch of 1/2.