JPS6082360A - Printer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Technical Field> This invention provides super/sub script characters (superscript subscripts, e.g.
The present invention relates to a printing device that prints superscript characters such as 2, and subscript characters such as x2.

<Prior Art> Characters have subscripts, which are especially needed in scientific and technical literature. However, it has not been possible to print this with a printer in the past, so it has been possible to print it out later, or as shown in Figure 5.
A method was used in which the letters were printed by simply shifting the letters up and down by simply feeding the paper, while keeping the letters the same size. Therefore, it takes a lot of effort to write it later, and if you want to shift the characters, use '!' as a subscript. The drawback was that it was difficult to understand.

<Objective> The object of the present invention is to eliminate the above-mentioned drawbacks and provide a device for printing super/subscript characters.

<Characteristics of the present invention> The present invention is based on the 8-bit unit (n is a natural number) sent from a character generator (hereinafter abbreviated as OG).
First, only the odd bits of the information are compressed to the upper half or lower half of the an bits and printed, then the paper is fed by half dots, and then only the even bits of the information of the 8nn pits are compressed and printed. is compressed and printed in the upper half or lower half of the 8 characters to realize super/sub script printing.

<Example> The configuration of the present invention is shown in FIG. 0FU1 controls the overall movement, and the print data taken out from OG2 is converted into super or subscript character data by the data conversion device O and stored in the print buffer 4, and when the conobuffer becomes full, It is printed by the printing machine 5.

FIG. 2 is a more detailed diagram showing the configuration of the present invention,
First, when data in units of 89 bits representing a character pattern is taken in from the CG 10, only the odd-numbered data out of the 8n-bit data is taken out by the odd-numbered bit extraction means 21, and then the 89% bits are taken out by the odd-numbered bit shift means 22. Shifted to the upper half of the bits (for superscripts) or the lower half (for subscripts). This result is then printed by the printing means 23. Next, the paper is fed by half dots by the paper feeding means 24, and then the even bits are extracted from the original 8n bit data by means 4p and 2.
Only the even numbered bits are taken out by 2s, and then the upper half of the 8tL bits (in case of superscript,
Or shifted to the lower half bits (in the case of Zabuscript). The result is then printed by the printing means 23.

Next, the operation of the present invention will be described in the flowchart of FIG.
This will be explained using the printing example shown in the figure. (For convenience of explanation, n=1 and information in 8-bit units is shown.) First, print data is read from aa. (<1>)
At this time, the data in 8-bit units indicating the character pattern is as shown in FIG. 4(a), for example. Next, in order to extract the odd-numbered bits of the read data, the original data is ANDed with "10101010", the even-numbered bits are masked, and the result is set as data (2). (<2
>) Now, considering the case of super script printing, next we will logically AND the above data ■ and "80HJ" and the result will be the data ■.Furthermore, we will logically AND the data ■ and "20H" and increase it by 1 bit. Shift to data ■, then logical product of data ■ and l'-oaaj and move up 2 bits.
Shift (determine data ■). Next, take the AND of data ■ and ``02HJ'' and shift it upward by 3 bits to create data ■.

After that, the logical OR of the data ■～■ is performed. (<3>) Then, the result of the logical sum is printed. (<4>) An example of printing at this time is shown in Fig. 4 (Ch). Next, after feeding the paper by a half-dot (<5>), in order to extract the 4%-th data, perform a AND operation between the original data and "01010101J," mask the odd-numbered bits, and use the result as data ■. (C<6>) Next, the logical product of data (2) and "40H" is taken and shifted upward by 1 bit to obtain data (2). Next, data ``041 (J'' is logically ANDed with ``10HJ'' and shifted up by 2 bits to obtain data ``2''. Next, ``041 (J'' is logically ANDed with data ``1'') and data ``10HJ'' is logically ANDed and data ``10HJ'' is shifted up by 3 bits to become data ``2.''.

Next, the data ■ and "01H" are ANDed and shifted upward by 4 bits. After that, the logical OR of the data ■～■ is performed. (
<7>) Furthermore, the result of the logical sum is printed. (
<8>) An example of printing at this time is shown in Fig. 4 (C). In practice, Fig. 4 (h) and (C) are overlapped and printed as Fig. 4 (Cd).

The operation of superscript printing has been described above, but the operation of subscript printing is similar, except that the upward shift is changed to a downward shift.

Here, the operation has been explained for n=11 and information in units of 8 bits, but the same explanation can be given for n=2 (that is, 16 bits or more).

Effect> As explained above, this invention can print super/sub script characters in the upper half or lower half of ordinary characters, so it can print characters with subscripts (for example, X2 .

X1) can be printed, which has the effect of significantly expanding the range of applications of the printer.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the hardware configuration of the present invention. FIG. 2 is a more detailed block diagram of the present invention. FIG. 3 is a flowchart showing the operation of the present invention. FIG. 4 is a diagram illustrating printing according to the present invention. 10...CG 20...Paper 60...Head and above Applicant Epson Corporation Suwa Seikosha Co., Ltd. Agent Patent attorney Tsutomu Mogami 11: (Method) ) 'I! I, i'l Director-General''j [Indication of the matter 1981 1981 Ifu 1 No. 191525 Z Komei's name F+, printing device, name to be corrected 113191/ゝ (237) Epson Corporation 71 mountains 1
1) In the description of Genmo, brief description of the drawings) 1 I1+ +l content appendix standard procedure amendment # (method) 1. Page 8, line 8 of the specification: ``This is a drawing.'' Add the following phrase below. "The 51st bacterium is a diagram showing an example of conventional subscript printing."

Claims (1)

[Claims] In a printing device that prints handwriting, symbols, etc. using dots, the even-numbered bits of the data of the first 8nn pits (% is a natural number) sent from the character pattern section are masked and only the odd-numbered bits are extracted. Odd-numbered pit extraction means and odd-numbered bits of the second 8n-bit data extracted by the odd-numbered pit extraction means are shifted to the upper half or lower half of the 83 bits, and the third 8n-bit data is Odd number bit shift means for generating data, and 8 bits sent from the character pattern section.
Even-numbered bit extraction means for masking the odd-numbered bits of the data of the nn pit position and extracting only the even-numbered bits, and the even-numbered bits of the fourth 8n-bit data extracted by the even-numbered pit extraction means. even number bit shifting means for shifting only 8 bits to the upper half or lower half bits to generate fifth 8n bit data; and printing based on the third data and the fifth data. and a paper feeding means for feeding the paper by half the distance between the dots after printing based on the third data and before printing based on the fifth data. A printing device comprising: