JPS5845986A - Electronic device - Google Patents

Abstract

PURPOSE:To enable to print in the prescribed format irrespective of a sheet inserting position by storing a print starting position by the relative position from a shift margin set in an electronic device. CONSTITUTION:A microprocessor MPU 44 translates a key signal from a keyboard 10 in accordance with a control sequence stored in a read only memory ROM 53, and controls a printing mechanism 41, an indicator 94 or a sentence memory 54, and a speaker 42. An address decoder 45 receives a control AB of an MPU 44 and generates signals of SELROM, SELBF, SELREG, SELM 2, SELFE, SELM1, SELKEY, SELPRT, SELDSP, SELBZ, and specifies and controls an ROM 53, a line buffer 52, a register group 51, an auxiliary memory 57, a flag group 50, a sentence memory 54, a keyboard control unit 24, a printer control unit 16, a display control unit 9L and an alarm controller 49.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic device such as a key-controlled electronic typewriter, and more particularly to an electronic device including means for printing according to a stored print start position.

Conventionally, electronic devices such as electronic typewriters have been known, and it has not been possible to digitally control almost all of the main controls of such electronic typewriters. However, with the advent of microprocessors in recent years,
Various new electronic devices with a wide variety of functions have also been invented. However, some of these functions are difficult for the operator to use. For example, electronic devices are known that have a function to register or recall each print start position of a print target format, that is, a page format function, but they have drawbacks such as not being able to print in the correct format if the paper is inserted at a different position. There is.

SUMMARY OF THE INVENTION Therefore, the present invention aims to eliminate such drawbacks, and aims to provide an electronic device that can print in a predetermined format regardless of the insertion position of the paper.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

First, the basic configuration of the electronic device of the present invention will be explained based on FIG. 1 is the platen knob, which is used when loading paper manually.
Alternatively, it is used to finely adjust the printing position in the vertical direction. When the knob 1 is pushed inward, it is disconnected from the internal drive pulse motor, allowing manual rotation of the knob 1. The paper support 2 is a guide plate for paper, and is used to ensure that the printed side faces the operator even when thin paper is used. The page end indicator 3 indicates the length of the paper to the end line, and the operator adjusts the indicator 3 vertically as shown by the arrow to match the vertical length of the paper and places it on the platen 17.
When the upper side of the paper that has passed through reaches the scale device of the indicator 3, the length to the end line of the paper can be known. Relay 8v, A-4l 7-, Care,) Lower part, U device, is used to move the diagonal inch roller away from the platen and manually correct the inclination of the paper. Soundproof cover 5
Transparent Acrylic 5 is used to suppress the impact noise of impact printing.
It is possible to see through. When changing the typeface or replacing the ribbon cassette, open the upper cover 6 by rotating it backwards and replace the carriage section (= the loaded type wheel or the ribbon cassette. This electronic typewriter is installed horizontally. There are four types of printing pitch: 10 characters, 12 characters, 15 characters per inch, and proportional spacing (hereinafter referred to as PS) in which the printing pitch changes depending on the size of the type.Scale 8, is 10 characters. It has three scales marked with character pitch, 12 character pitch, and 15 character pitch, and the carriage indicator 12 is composed of three lamps such as LEDs, and is mounted on the carriage and can be specified from the keyboard 10. The carriage position is indicated on the scale 8 by lighting the lamp corresponding to the pitch that has been set.

The keyboard 10 has a group of character keys 10a for inputting and printing text.
and a group of control keys 10b arranged on both sides thereof.

The input key signal is read in the key fob control unit and sent to the main control unit including ■U. If the input key is a key to be printed, related data is sent from the main control unit to the printer control unit. If the key is to be displayed, the data is sent from the main control unit to the control unit of the display 94 and displayed on the display 94. Changing the illumination of the lamps on the keyboard 10, such as by changing the printing pitch, changing the line feed pitch, or by using illuminated keys, etc. - In the case of manual operation, data for controlling the lighting of the lamps is sent from the main control unit to the keyboard control unit. Ru.

FIG. 2 is a front view of the operation panel of the electronic typewriter of this embodiment. In Figure 2, the Pitch key specifies the number of characters printed per inch, as described above.

Each time you press the Pitch key, the LE related to Pitch is displayed.
The display section L1, which is composed of lamps such as D, is 10. 1
2. 15. In order of PS, and Sai.

Lights up when clicked. 10, 12.15 is the number of characters/1n
ch, but in PS, the number of characters per inch differs depending on the characters to be printed. Line 5pace key is
The basic unit length 1 of the line feed amount is r inches. As before, the lamp L2 is lit cyclically by pressing the key.

The KB 5select key is used to specify uppercase and lowercase letters, etc. 8HI The 5select key is used to select letters that cannot be selected using the FT key, such as the K seal: 3 with the double key.
This gives an alternative meaning to the key corresponding to the type character, and in this example, when the KBI lamp L3 is lit, rt+Jt ri'' is selected, and when the KBII lamp is lit, the vertical line character is selected. 0KBSe where “1” is selected
1 every time the LECT key is pressed. One of the It lamps lights up.

The upper right R, M Control key is rUsT, AUTO, OFF is R, M C in the right margin.
Each time the ontrol key is pressed, it is selected =0, which is also indicated by the lighting of the lamp L4. When the JUST lamp is lit, light justification (right alignment)
Select the function and perform automatic line feed when the AUTO lamp is lit. OFF literally does not instruct anything. The OP control key is used to determine the print mode of the electronic typewriter. As before, each time a key is pressed, one of C, W, L, and 5TORE lights up to indicate the 4th printing mode.

C: print every character, W: print every word, L: print every line, 5T
ORE means registration in the internal storage device, and 5TORE is now in line-by-line printing mode.

5SWI on the left edge relates to the decimal tab function and relates to the 3-digit scale. That is, when 5SWI specifies SP, three-digit scale is performed using space, and when 5SWI specifies bow, three-digit scale is performed using 'su'. If "XX" is specified, 3-digit scale is not performed.

5SW2 indicates the type of character. In other words, it relates to bold printing, printing with angle lines, etc. “××
” is printed in bold and with a continuous angle line, “×
×” is printed in bold with annotations for each word, “×
XX" is simply printed in bold, rX:, :J is normal printing with continuous anglines, "×:," is normal printing with word-by-word anglines, r:, -:? : :, J
indicates normal printing. The DECTAB key is used to specify decimal tabs, etc. The LAYOUT key has a lamp and is used to specify column layout, etc.
The NT key also has a lamp, and is used when instructing automatic indentation mode, etc., and is related to page formatting.The MEMORY key also has a lamp, and when related to memory, the MARREL key changes the left and right margins. When operating beyond the cursor position, the N0NPRT key is used to refer to the text memory, the REPEAT key is used to print or input the same character continuously, and the KE key or ψ key is used to move the cursor position on the display 94. B
ACK 5PACE key moves the print position towards the left margin, S key erases characters, -I
The NDEX key is used to advance one line of printing paper.
The V I NDEX key is used to feed printing paper one line in the reverse direction, the C0DE key has a lamp, and when used in conjunction with other keys to issue special instructions, the CENT key has a lamp and is used to perform centering printing. When giving instructions, use the ☆ key to instruct to stop printing, etc., the LM key to set the left margin, and the R
Mkini sets the right margin, SET key sets the tab stop, CLR key deletes the tab stop, RELOC
The key is used in conjunction with the SHI FT key on the left when moving the carriage to the final printing location, to enter lowercase letters or to specify special functions, and the LOCK key above it is used to lock the 5HTFT key. used for. The BACK-TRACE key is used to correct printing by moving to the previous line.

The character key CK is inside the dotted line. The 5PAGE key is executed every time the carriage is pressed to the right to set a blank digit. The RETURN key executes return of the left margin of the carriage and feeding of one line of printing paper.

As shown in the figure, the RETURN key and 5pAct keys are character keys.A control block diagram thereof is shown in FIG.

44 is a microprocessor (MPU) which interprets the keyboard 10 according to the control sequence stored in the read-only memory ROM 53, and controls the printing mechanism 4j, the display 94 or the text memory 54, the speaker 42, etc. control.轡5 is an address decoder, which receives control AB- from the MPU 44 to output SELROM and 5ELBF.

5ELREG, SELM2.5ELFF, SELM
I, 5ELKEY.

5ELPRT, 5ELDSP, 5ELBZ (7)
, and generate signals respectively, ROM 53, row buffer 52, register group 51, auxiliary memory 57, and flag group 5.
0, text memory 54, keyboard control unit 24, printer control unit 16, display control unit) 9L, and alarm control unit 49 are designated and controlled. Note that addresses are assigned to the keyboard display, printing mechanism, memory, ROM, etc. for processing by the MPU.

Reference numeral 50 denotes a group of flags, which stores the specified state of the typewriter, various modes, and the like. A group of registers 51 is used to store intermediate results of processing operations. Reference numeral 52 is a line buffer in which information regarding characters that have already been printed is stored, and emotions to be printed during word-by-word or line-by-line printing operations are stored. When making corrections, the MPU 44 finds out what characters have already been printed by searching this line buffer 52 in the reverse direction, and automatically moves the carriage to the final printing position of the already printed line. Control. 5 and 4 are character string or text memories in which character strings, texts, information, tab group information, etc. registered by the operator according to appropriate procedures are stored with titles or without titles as the case may be. Since the memory 54 is backed up by the batteries 23 (, n), the information in the memory 54 will not be lost even if the power switch is turned off. The auxiliary memory of 57 is monitored as long as the voltage drops due to battery life, etc., and a warning is given to the operator.
Similar to 4, it is backed up by 23 batteries and stores various operating modes immediately before the power switch is turned off.

The keyboard control unit 24 generates key information through a matrix 88 having grid points corresponding to each input key, and also displays the lamp or pitch of the illuminated key switch on the keyboard 10, the operating mode, etc. through the cathode driver 64. It also controls the lighting of the lamp 89. The printer control unit 16 controls the printing mechanism 41 to perform printing. A display control unit (SL) of the display section 9 controls information displayed on the display 94. The alarm control unit 49 generates an alarm sound through 42 speakers according to instructions from the MPU 44 . As mentioned above, 13 is a power supply unit that supplies power to each part. .

In addition, each unit, memory, register group, flag group, etc. are connected to the MPU 44 via a data bus DB, and the
It receives control from U 44 and sends various data to MPU 44, where predetermined arithmetic control is performed.

The fourth item is the internal structure of the flag group 50. The role of each flag is as follows.

KB2 is set (KB2=1) when ``■'' is selected by pressing the KB5 select key.

Therefore, when KB2=1, KN in Figure 2 is the vertical line character "1".
” is valid as a character key. KB2 is cleared when I is selected using the KB5e1ect key. INDENT sets INDENT = 1 when automatic indentation mode is started. When moving the carriage back towards the left merge direction, it is always monitored and I N
When DENT=1, the temporary left margin is used as the left margin. INDENT is cleared when automatic indent mode is canceled.

When 5TORE is selected using the Op Control key, STR is set to 5TR=1, and when a selection other than 5TORE is selected, 5TR is set to 0. TR is set to 1 when the title name is entered and the RETURN key is pressed during an operation such as character string reference, and when the character string reference is canceled, T
R=O. NP is set to 1 when the N0NPRT key is pressed, and NP is set when the character string reference etc. is released.
=O. SC indicates that a search character string has been input, such as by character string reference. Therefore, when the reference character string is input, 5C=1, and when the reference to the character string, etc. is released, 5C=O.

TCNT
TCNT = 1 when centering between tabs is specified
NisuGJ, MCNT is 1 (2) when centering between margins is specified, PCNT is 1 (2) when centering between specified positions is specified, and WCNT is 1 (2) when centering between words is specified.

FIG. 5 shows the internal structure of the register group 51. Register P
RTEPT indicates the final point of characters stored in the line buffer 52. Register PRTEPT indicates the printing end point within the characters stored in line buffer 52. The register CRGPT used in the present invention stores the moving distance of the carriage from the leftmost printable end.

In the register DCRGPT, the carriage does not move immediately when a character key is input during word-by-word printing, line-by-line printing, etc. Therefore, it is necessary to know and monitor the temporary carriage position. At this time, DCRGPT is used to store the actual quantity to be moved. When the PITCH key is pressed to specify the character size, that is, the character pitch, information on each character pitch is stored in the PITCH. The MPU 44 can refer to the PITCH to know the character pitch. L
Like PITCH, NSP is the current paper feed amount, that is, Li.
ne Stores the operating state of the 5pace key. RMC is R, M, control key, 0PCNT is OP Co
Stores the state of the ntrol key. LM%RM is CRG
The positions of the left margin and right margin at that point in time are stored in the same unit as PT, etc. 5SW1 and 5SW2 store the states of 5SWI and 5SW2 on the operation panel, respectively. DLM is a register for saving the left margin LM in automatic indent mode.

TABn from TAB1 stores the position of the tab stop at that time, and has the same dimensions as LM and the like. WORK is used for storing information, saving information, etc. during control or processing. CPT points to a certain point in the line buffer 52, corresponds to the character exactly where the carriage is located, and is used when making corrections. That is, the status of the printed character type, printing pitch, etc. at that time is memorized for each literary print, and when correction is necessary, this is stored in the MPU 4 in order from the oldest character digit to the youngest character digit, like a first-in-first-out stack.
4 is decoded in the order of capture, and by reproducing the past carriage movement state and printing paper feeding state in reverse, the carriage can be made to reach the final character position of the line printed in the past.

LC stores the number of feeding digits of printing paper.

In such a system configuration, the control sequence begins when power is applied to the electronic typewriter. Immediately after the power is turned on, the control unit (Fig. 3) 24, 16, 9L,
49 etc. Initialize. After this, all the register groups 51 in figure $3 are cleared, the row buffer 52 is cleared, and the flag group 50 is cleared. After this, all the information in the register group 51 is stored in the non-volatile memory 57 of FIG. 3 in order to reproduce the usage state before noon, so it is recalled to the register group 51. At this time, the Pitch of FIG. 2 is set according to the information in each register 51.

Line 5pace, R,M Control,
The Operating Cont lamps are lit again, and the carriage indicator lamp is also lit. Further, since the flag KB2 is also stored in the auxiliary memory 57, the lamp of KB5elect can be lit in the same way.

Next, registration and calling of page formats according to the present invention will be explained. For example, even if the entry points of the printing paper P are different for each line as shown in FIG. 6, all these entry points EPI to EP11 are registered,
It would be convenient if the carriage could automatically move to the entry point during printing and paper feeding. In order to satisfy such functions, this example further includes a page format registration function and a call function.

To register the page format, as shown in Figure 7, the first operation is to operate the OP, C0NTR0L keys, and press the 5TOR key.
Make sure the E lamp lights up. Next, press the FORMAT key to declare the start of page format registration.

At this time, the FORMAT key lamp lights up and the FORMAT
Indicates T-related registration. Next, enter the title name for the page format. The delimiter for inputting the title name is RE.
This is when the TURN key is pressed.

After that, the title name is printed, and the printing paper is fed one line to indicate that the input title name has been received.

However, if the same title name is registered elsewhere, a warning will be given and the application will not be accepted. The human operator moves the carriage up to the entry point on the first line of the printing paper using the 5PAGE key, presses the ☆ key, and designates the entry point. In this way, when all 6 entry points in one line are completed, press the RETURN key to instruct to memorize all the entry points in one line.
In the example shown, repeat the steps up to n=6), and when the page format has been memorized, press the FORMAT key to register it.
The FORMAT key lamp is turned off to indicate to the operator that the termination has been accepted. Note that in FIG. 6, one blank line is set between the entry point (EPIO) and EPll, but in this case, it is sufficient to press the RETURN key without the ☆ key following the RETURN key after setting EPIO. The operating procedure for calling up the registered page format is shown in FIG. First, OP, C0NTR0L +
- to prevent the ToRE lamp from lighting up.

Then press the FORMAT key. At this time, the FORMAT key lamp lights up like when registering the page format. Next, enter the title name and press the RETURN key to complete the title master's power. Since the page format file f registered at this point is called, the carriage moves to the next tab stop position each time the ☆ key is pressed. Therefore, by inputting the character string to be printed after pressing the ☆ key and repeating this, a document in the format shown in FIG. 6 can be created many times. To finish, just press the FORMAT key. At this time F
The ORMAT key lamp goes out.゛Operations using key operations are explained below.

First, as shown in FIG. 9, to register the format, the title name in the buffer 52 is first saved in the WORK register and displayed. 5Use the PAGE key etc. to move the carriage to the entry point position, press the ☆ key, and press CR.
The contents of the GPT and the carriage position information (the moving distance from the printable leftmost reference point) are saved in the WORK register. If there are multiple entry points as shown in Figure 6 EP2.3.4, press the 5PACE key and the ☆ key repeatedly.
The contents of CRGPT are sequentially stored in the WORK register.

When entry point registration for one line is completed, RETU
Press the RN key. The flag TR is set to 1 this time, so go to YES and change the line counter LC from 0 to 1.
, and its contents are correspondingly stored in the entry point storage section of the WORK register.

Repeat the above operation for the number of lines of page former &), WO
The entry point information for each line is stored in the RK register, and by pressing the FORMAT key, the contents of the WORK register, that is, the title name, the number of lines for each line, and the entry point information for each line, are registered in the text memory 54, and the FORMAT key is pressed.
The T lamp is turned off and page format registration is completed.

To call this registered page format, OP,
Since C0NTR0L is set to a value other than 5TORE, when the FORMAT key is pressed with the flag STR=0, the process proceeds to NO with 5TR=17 in FIG. 9, and is executed by FI[) in FIG. Enter the title name of the desired page format, display the title name with LBFSTR, and press RE.
TR=1 with TUR'N key? The process is the same as the previous example until it goes to No. The corresponding page format in the text memory 54 is transferred to the WORK register, and the flag TR is set to 1. Thereafter, by pressing the ☆ key, the entry point information in the WORK register is taken in by the MPU 44, and the carriage is automatically moved and set to the entry point. In the example in Figure 6, RETU from EPI to EPII
Without the RN key, pressing the ☆ key 11 times will automatically set the carriage and automatically feed the printing paper. This is the R pressed at the end of each line when registering the page format.
This is because the text memory 54 stores the carriage return command, paper feed amount, etc. using the ETURN key.

Also, when calling from this text memory 54, the PITCH that is set on the keyboard 10 at that time.

LINE 5PACE and OP C0NTR0L are ignored, and the content at the time of registration in the text memory 54 takes priority. For example, even if OP C0NTR0L is set to print every word W, if you call the page format and set the carriage to the entry point with the ☆ key, then press one character key, the BFPRT routine in LBFSTR in Figure 10 will be 1. It operates in character-by-character printing, that is, OP C0NTR0L=C mode.

As a result, printing from the entry point can be performed manually for each character key, which is extremely convenient.

However, in the embodiment described above, the contents of CRGPT are simply stored at the time of registration, and only called at the time of execution.
The irrationality occurs because the entry point of each line is treated as an absolute position from the leftmost printable edge. That is, when the printing paper CP is set at a different position from that at the time of registration at the time of execution, the entry points of each line that have already been stored become useless, and this may even lead to problems in printing. Therefore, the following embodiment is a modification of this. When the ☆ key is pressed in FIG. 9 during registration, the content of the left margin LM is subtracted from the content of CRGPT, and the result is saved in the WORK register and executed. When the ☆ key is pressed in Figure 10, the left margin LM
The carriage position information in the WORK register is added to the entry point, and the carriage is advanced to that position. This is illustrated in FIGS. 11 and 12.

As explained above, according to the present invention, the page format is stored in the leftmost reference position determined at the time of registration, or in the relative position rather than the absolute position of the moxibustion. It can also be executed accurately, greatly increasing the degree of freedom when setting paper.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an overall overview of an embodiment of the present invention, FIG. 2 is an explanatory diagram showing a detailed arrangement of an example of the keyboard, FIG. 3 is an overall block diagram, and FIG. 4 is a group of flags. FIG. 5 is a detailed explanatory diagram of the register group, FIG. 6 is an explanatory diagram showing an example of printing paper, FIG. 7 is a key operation flowchart when registering page format, and FIG. Figure 8 is a key operation flowchart when calling a page format, and Figure 9 is a page format position registration.
FIG. 10 is a flowchart for explaining the temporary operation; FIG. A masterpiece explanation. , FIG. 2 shows a page format position call 10 according to the present invention...Keyboard
50... Flag group 94... Display 1114 Figure 6 Figure 5 Figure 7 Figure 8

Claims (1)

[Claims] In an electronic device that stores at least one print start position on a sheet of paper and includes a means or stage for printing according to the stored print start position, the print start position is a relative position from a shift margin set in the device. An electronic device characterized by being memorized.