JPS61283583A - Electronic apparatus with printer - Google Patents

Abstract

PURPOSE:To enable a printing paper with a desired paper width to be used, by a system wherein a plurality of paper widths can be detected, and a printing format is changed according to the paper width. CONSTITUTION:A paper width detecting switch 9 for detecting printing papers with two types of paper widths A, B (A>B) is disposed at such a position that when each of the papers 12, 13 having the widths A, B is set with the right end part thereof matched to the right side of a paper letting-out part 11 of the printer, the switch 9 makes contact with the paper 12 to detects the latter but does not make contact with the paper 13, so that is can not detect the paper 13. The switch 9 comprises a pair of metallic electrode pieces 9A, 9A' and lead wires 9B connected to the pieces 9A, 9A', and is connected to a paper width data generating part 10. A CPU 2 performs processing for setting an optimum printing format for printing data, according to the paper width data outputted from the part 10.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to electronic equipment with a printer.

[Prior Art] Conventionally, in electronic desktop calculators with printers, the paper width of printing paper that can be set in the printer is limited to only one type specified for the printer.

[Problems with the prior art] Therefore, it is not always possible to print in the paper width that the computer user desires. [Purpose of the Invention] This invention aims to provide an electronic device with a printer that can set printing paper of multiple types of paper widths and that allows printing paper of a desired paper width to be used at all times. purpose.

[Summary of the Invention] In order to achieve the above object, the main point is to be able to detect a plurality of types of paper widths, and to change the print format according to the detected paper widths.

``Embodiment'' An embodiment in which the present invention is applied to an electronic calculator with a printer will be described below with reference to one drawing.

In FIG. 1, a key input section 1 includes a numeric keypad, function keys, etc. that are normally provided in computers, and the output of each key is input to a CPU 2 consisting of a microprocessor and processed. This CPU 2 includes a printer 3 in which printing paper of multiple widths can be set, a data storage unit 5 consisting of a display unit 44 and a RAM for storing data to be printed, and 3 digits for dividing the printing data into 3 digits. Delimiter setting section 6,
A minus sign setting section 7 for setting a minus sign in the print data and a symbol setting section 8 for setting a symbol in the print data are connected via a pass line. Also, the signal detected by the paper width detection switch 9 is the paper width data fixed value. The data is input to the unit 10, converted into paper width data, and supplied to the CPU 2.

FIG. 3 shows a numerical register for storing numerical data, a symbol register for storing symbol marks, and two types of print buffers 7 (FBl, PH1) for storing print data, which are provided in the data storage unit 5. Its specific configuration is shown in FIG.

That is, the numerical value register has 13 digits as a whole, of which the 11th digit is for DP (decimal point) storage, 2 digits [1 is for code storage, and the 3rd to 12th digits are for numerical value storage. Further, the symbol register consists of two digits. Furthermore, both print buffers consist of 19 columns.

FIG. 2 shows the specific configuration of the E paper width detection switch 9 that detects printing paper of two types of paper widths A, B, (however, A>B). When the right end of each print paper i2.13 on the right side A and H in the drawing of the feeding unit 11 is set together, the print paper 12 with paper width A
It is provided at the position shown in the figure where it is not detected because it cannot come into contact with the printing paper 13 having the paper width B, although it is detected when it comes into contact with the printing paper 13 having the paper width B.

This paper width detection switch 9 has a pair of metal electrode pieces 9A.
, 9A' and leads 1i9B connected to the metal electrode pieces 9A and 9A', and are connected to the paper width data generating section 10. Then, the CPU 2 performs a task of changing and setting the print format of the print data to an optimal one in accordance with the paper width data output by the paper width data generating section 10.

Next, the operation of the embodiment will be explained based on the flowcharts shown in FIGS. 5(A) to 5(C) and the printing examples shown in FIGS. 6(1) and (2).

The calculation results executed by the CPU 2 based on the key manual data from the key manual unit 1 are sequentially written into the number M register of the data storage unit 5, etc. When the printing process starts, the flowchart shown in FIG. 5 starts.

First, in step P1, the symbol mark (+, M+, book symbol data shown after the numerical value in Figure 6) set in the symbol register in the data storage section 5 is transferred to the O11 digit of the print buffer FBI. be done. Further, in step P2, the corresponding numerical data in the numerical register is transferred to the 2nd to 18th digits of the print buffer FBI.

Next, in step P3, it is determined whether the paper width is large or small.

Assuming that the printing paper 12 with the larger paper width A is currently being printed, the metal electrode piece 9A of the paper width detection switch 9
comes into contact with this printing paper 12 and turns off, so that the paper width data generating unit 10 generates paper width data corresponding to the paper width A and sends it to the CPU 2. Therefore CPU2
Then, it is determined whether the paper width is "large", the process proceeds to step P4, where decimal point setting processing is performed, and then, in step P5, the 3-digit separator setting section 6 is driven to perform 3-digit separator setting processing. This process is performed only on the printing paper 12, which has a large paper width, since there is sufficient paper width. (See Figure 6 (2)).

Next, in step P6, it is determined whether the sign is negative or not by several m
Check the contents of the second digit of the register. If it is negative, the process advances to step P7, where the minus sign setting section 7
A minus sign is set in the most significant digit of the print buffer PBI by step P8, and then the contents of the print buffer FBI are printed in step P8.

On the other hand, if it is determined in step P6 that the sign is not negative, the process proceeds to step P8.

As a result, three types of printing examples are shown in Figure 6 (2).
Printing paper 1 with paper width A that has enough paper width even if the numerical data is up to the maximum digit (10 digits) of the numerical register.
In the case of 2, the code, numeric value, and symbol are all printed as one line, and the numeric value is printed with a 3-digit separator.

On the other hand, when the printing paper 13 with a narrow paper width B is set in the printer, the metal electrode piece 9 of the paper width detection switch 9
A is the other metal electrode piece 9 because it is not in contact with the printing paper 13.
It contacts A' and outputs an on signal. Therefore, the paper width data generation section 10 generates paper width data corresponding to the paper width B, and sends it to the CPU 2. Therefore, CPU2 is
The process proceeds from step P3 to step P9 to perform decimal point setting processing.

Next, in step pH+, it is determined whether the sign is negative or not, and if NO, the process proceeds to step PIT and the symbol is 2.
Determine whether it is a digit or not. Therefore, when the symbol data is one digit as shown in (A) or (B) of Fig. 6 (■),
Proceed to Step Pz3 and 1 Purindopa Sofa FBI.
Since the digit is shifted to the right and the O digit IJ is cleared, proceed to step Pal and print the data in the Flint nose sofa FBI.

- If it is determined YES in step PIJ,
Proceeding to step P+s, the second digit symbol is saved to the least significant digit of print buffer PB2.

That is, the 2-digit symbol "
The second digit symbol [+] of "M10" is saved. Then, by step P1・), print/to sofa PBI 1
The digits are shifted to the right, and then in step P20 the data in the print pamphlet rPBI is printed, and then in step P21 the print buffer PBl and print buffer PB2 are printed.
The symbol "+" saved in the least significant digit of the print buffer PBI is input. Therefore, this is printed in step P2/. Therefore, the number is 13
In the case of printing paper 13 that contains all 0 digits, has 2 digits of symbols, and has a narrow paper width, the symbol "+" cannot be printed on only one line, so the second line in Figure 6 (1) This numerical data r123456789, like the printing status of
0. M+J is added to the second line by "+" and printed in two separate lines. ! g also changes the printing format from the normal one because the width of one sheet of paper is narrow, although what should normally be printed in one line.

Well, if YES in step PIO, it is determined whether the numerical value is full digits (data for 10 digits) in step P, and if NO, a minus sign is added to the top of the print buffer FBI in step P16. Digit (18th digit)
Set to . Then, the process proceeds to the stainless steel knob P17, and the above-mentioned processing is performed.

Also, if step PI+ is YES, step PI
Proceed to step 2 and set a minus sign in the most significant digit of printer buffer PB2. Then, data is exchanged between print buffer FBI and print buffer PB2, the most significant minus sign of print buffer FBI is printed in the most significant digit of the first line, and then print buffer FBI and print buffer PB2 are converted. and print buffer P
Return the numerical data and symbol data of 10 rows and digits excluding the minus sign to BI. Then proceed to step PI7,
Perform the processing described above.

Therefore, as shown in the printing example (C) on the third line of FIG. 6(1), each data of the minus sign and the numerical value + symbol is printed over two lines because the paper width is narrow. That is, the printing format is changed depending on the paper width.

In the embodiment described in -h, two types of printing paper were used, but three or more types may be used.

In addition, when a symbol has two digits, for example, in the example of "M ten", when the entire data cannot be printed in one line because the numerical value contains all the digits and the paper width is narrow, in the above example, "M" and "+" is printed in two lines, but the space between "M" and "+" may be compressed and printed as one small character "M+".Furthermore, the paper width detection switch is printed using a metal electrode piece. Alternatively, an optical sensor, a manual changeover switch, etc. may be used.

[Effect of the invention] As explained above, the present invention enables printing by setting a plurality of types of printing paper with different paper widths, detecting the paper width of the printing paper at that time, and detecting the paper width according to the paper width. Since we have provided an electronic device with a printer that prints by changing the print format, you can use printing paper of different widths, and the advantage is that you can print with whatever you prefer.In addition, the print format automatically changes according to the paper width. Therefore, there is no need for the operator to pay any attention to the length of the print data, and there is an advantage that printing can always be performed accurately and in the full effective print space.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of one embodiment of the present invention, and FIG. 2 is a paper width detection switch 9. Printed paper 12. 3 and 4 are diagrams showing the positional relationship of the printing paper 13, the numerical register, symbol register, print paper PBi, PB in the data storage unit 5.
Figures 5 (A, ) to (C) showing the specific configuration of 2.
6 is a flowchart showing the operation, FIG. 6(1) is a printing state diagram for the case of the printing paper 12 having a narrow paper width, and FIG. 6(2) is a printing state diagram for the case of the printing paper 13 having a wide paper width. 2...CP tJ, 3...Printer,
5... Data storage section, 6... Three-digit delimiter setting section, 7... Minus sign setting section, 8...
... Symbol setting section, 9... Paper width detection switch, 10... Paper width data generation section, 12.13.
...Printed paper. Patent applicant: Casio Computer Co., Ltd. Figure 2 Figure 3 Figure 4 Figure 5 Figure 5 (A) Figure 5 (B)

Claims (1)

[Claims] A printer equipped with a printer characterized in that it has a paper width detection means for detecting the paper width of printing paper set in the printer, and a print control means for changing the printing format of print data according to the paper width detected by the paper width detection means. Electronics.