JPS5957768A - Printer - Google Patents

Abstract

PURPOSE:To enable to print any kind of characters with a small capacity of memory, by a method wherein a plurality of font cassettes each of which incorporates a memory for a character generator are provided one for each kind of characters, and one of the cassettes is selected and is fitted to a bus line. CONSTITUTION:A CPU1 operates in accordance with a program stored in a memory 2, receives printing data from a host system through an interface part 5, stores the data into a printing buffer, and outputs a controlling signal to a head-controlling part 6 and a motor-controlling part 7 to effect a character- printing operation. The font cassette 4 incorporates the memory 3 for the character generator corresponding to a kind of types, and is so provided that it can be detachably fitted to the bus line 8. The font cassettes are provided for respective kinds of characters, and the cassette 4 for a desired kind of characters is fitted when printing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a printing device, and particularly to a printing device suitable for selecting and printing a wide variety of character types.

[Technical background of the invention]

Generally, when changing the character type with a printing device that uses a daisy wheel for type 251q, the desired character (
All you have to do is cross the daisy wheel with the font corresponding to iIi. However, this replacement work required special tools and was complicated work.

On the other hand, a dot matrix type printing device is known that prints a desired character pattern using a set of dots, but in recent years even dot matrix printing devices have improved printing quality that is close to that of type.
Since 1999, iTJ has become a popular choice for replacing type printing devices.

Such a dot matrix type printing device can control the character pattern with electrical signals, so it has the advantage that it does not require the following operations: (1) changing the wheels, etc. to obtain the desired character (・F) There is.

[Problems with background technology]

However, in order to be able to change the character type in the printing device of such a dot matrix quiz, it is necessary to
It is necessary to store all necessary components so that they can be retrieved in the form of electrical signals.

However, if all fonts are stored, the memory space will be increased, and there will be problems in terms of economy if we also include fonts that have low usability or are not used at all.

On the other hand, it is possible to improve the economy by only storing 43 fonts with a high 9fiff.
Whenever there is a need to print a font that is not stored, the corresponding 111 function cannot be used.

[Purpose of the invention]

Therefore, an object of the present invention is to eliminate the above-mentioned problems of the prior art, to make it possible to print necessary character types without putting pressure on economy, and to make it possible to print all kinds of fonts freely and easily. Configurable printing device? '1
is to provide.

[Four points of the invention] In order to achieve the above object, the present invention provides a print head for printing characters, etc. using a dot matrix.

Generates character data corresponding to input character data (111) A character generator part is arranged in the eyebrows 11 and the print head is controlled based on the character data from the character generator part.111 The purpose of this invention is to provide a printing device that can be easily used by humans.

[The Invention of Temperance]

Hereinafter, the present invention will be explained in detail with reference to page 1 and page 1.

5/1 Ne1 is a block diagram of a printing device according to an embodiment of the present invention. In the figure, a print head 9 prints a necessary pattern based on a command from a head control unit 6. Record on printed paper.

Note that the print head t is position-controlled in the line direction by a carriage motor 10, and the printing paper (not shown) is fed and controlled by a paper feed motor/l.
controlled by The CPU/ operates according to the program stored in the memory, receives print data from the host system (not shown) via the interface section S, stores it in the print buffer in the memory, and then sends it to the head control section L. , has the function of sending a control signal to the motor control section 7 to cause it to perform a necessary character printing operation. Incidentally, the cpu/, memory controller, interface section 1, head control section B, and motor control section 7 are connected via a path line g. The font Kananotoku has a built-in memory 3 of a character generator section corresponding to the type of type, and is detachably arranged with respect to the pass line g.

Figure 2152 is a perspective view showing how the font cassette shown in Figure 2157 is attached and removed. As is clear from the drawing, the cassette holder has a connector L/C, a printed circuit board on which memory, a pass line G, etc. are mounted, and a 2θ
The connector 20C provided above can be connected to the connector 20C.

In the configuration 41'4 shown in FIGS. 1 and 2, prior to the operation of the printing device, the font cassette holder containing the memory 3 for character generation corresponding to the required character type font is loaded into the print library ζ. Plate 20 and connector QC. 2
Coupling via θC. As a result, memory 3 is placed on the path line g, +t: h·)′, and memory J! along with memory for CII U /. Make 43ff of 'l'. For printing, print data from a host system (not shown) is input via the interface 741 and stored in the print buffer in the memo IJ2. The character data in the print head is converted into a C1 dot matrix pattern in the character generator memory 3 and sent to the head controller B via the pass line g. 6. By using the temporary brush and the print head, the desired characters corresponding to the character data are printed on the printing paper 7 (not shown).
The mouth becomes the hand on which the characters are printed.

In addition, if you need to change the character ``i'', you can replace it with a font casenote that stores the necessary font.
(, , H4 characters fiij can be printed.

Also, for fonts that are included in the font power set (
Q3. By setting Q to a plurality of fonts (once a month, it is possible to switch between a limited number of fonts or use software control to eliminate the need to replace fonts 9).

Furthermore, on the outside of the font cassette l, type 8 of the font,
It is possible to further improve operability by displaying type samples and the like.

〔Effect of the invention〕

As mentioned above, according to the present invention, when printing characters and figures in a dot matrix, printing using any font can be done with a very economical 414 font that increases the color appearance of the character generator section. Furthermore, even when changing fonts, it is only necessary to replace the cassette, so a printing device with improved operability can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a printing device according to an embodiment of the present invention, and FIG. 1 is a perspective view showing how the font cassette shown in FIG. t1\1 is attached and removed. /... CPU, 2, 3... Memory, l... Font cassette l-1, j... Interface section, 6...
・・Head core l・Ll−filS, 7・・Motor: 1 control ttlI, g・Pass line, 9・
...Print head, 10...Carriage motor, /
/...1st (feed motor, /IC, 20C...connector 1.20...printed circuit board.

Claims (1)

[Scope of Claims] /) A print head that prints characters, etc. using a dot matrix, a keystroke generator section that is detachably arranged to generate character data corresponding to input character data, and a character generator section. The character generator section generates characters representing a specific font in correspondence with the dot matrix. 1.V printing device characterized by comprising 417 ROMs for storing data. 11. That printing device as set forth in claim 1, in which /lY is a symbol.