JPH031158B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a document processing device, and more particularly to a document processing device equipped with a print pitch changing and display function.

[Prior Art] Conventionally, typewriters and the like have performed so-called proportional printing in which the pitch of characters to be printed is changed as appropriate. That is, a predetermined pitch is assigned in advance to each character to be printed, and the carriage drive device controls the position of the character to be printed in accordance with this pitch. In addition, as a standard pitch for the proportional print media used,
10 Pits (Pica), 12 Pits (Elite) and
There are 15 pitches (microns), and the type width and shape of the printing medium (type wheel, etc.) are made based on this pitch standard, so the user must use the keyboard or switch to obtain the print that matches the loaded type wheel. It is necessary to set the standard pitch based on the means. In addition, in recent years, electronic typewriters have been proposed that have a function that automatically determines the reference pitch type of the set print medium optically or from the wheel shape, etc., and automatically sets a print pitch that matches the pitch type. has been done.

In any case, the printing pitch at which the device operates is a matter of operational concern, and it is necessary to accurately inform the operator of this. however,
There are many types of print pitch information, for example, even when following the normal manual print pitch selection, Pica (fixed at 10 characters/inch), Elite (fixed at 12 characters/inch),
In addition to Micron (fixed at 10 characters/inch), Proposal1 (10 characters/inch standard), Proposal2 (12 characters/inch standard), Proposal3 (15 characters/inch standard) that changes the print pitch depending on the character width.
etc., and if we consider whether it is forced according to manual print pitch selection or whether it is automatically selected (Auto) according to the pitch type of the loaded print medium, the types of displayed information become enormous. , the number of parts and space required for pitch selection operations and display increases. Furthermore, for this reason, the conventional apparatus has been inconvenient in terms of operability in this respect.

[Objective] The present invention has been made in view of the above-mentioned drawbacks of the prior art, and its object is to provide a mode in which a wide variety of print pitch selection information can be easily seen and recognized in a limited display area. An object of the present invention is to provide a document processing device that identifies and displays a document.

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

FIG. 1 is an external perspective view of an electronic typewriter ETW according to an embodiment of the present invention. In the figure, a platen knob 1 is used when manually loading paper or finely adjusting 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 paper guide plate, and is used to ensure that the printing surface faces the operator even when using thin paper. The page end indicator 3 is a measuring stick that indicates the length to the end line of the paper.The operator adjusts the indicator 3 vertically as shown by the arrow in advance according to the vertical length of the paper, and then places the indicator 3 in the vertical direction as shown by the arrow. When the upper side of the paper that comes out reaches the scale position of the indicator 3, the length of the paper to the end line can be known. The release lever 4 is used to release a pinch roller located at the bottom of the platen from the platen and manually correct the inclination of the paper. The soundproof cover 5 is provided to suppress the impact sound of impact printing, and since it is molded from transparent acrylic, the printed characters can be seen through the soundproof cover 5. When changing the typeface or replacing the ribbon cassette, open the upper cover 6 by rotating it backwards and replace the type wheel loaded in the carriage section or the ribbon cassette. This electronic typewriter has a horizontal printing pitch of 10 per inch.
In the case of letters, 12 characters and 15 characters, and in addition to this, in the case of proportional spacing (hereinafter referred to as PS) where the printing pitch changes depending on the size of the type, 1
There are six types: 10 characters per inch, 12 characters per inch, and 15 characters per inch. Scale 8 is 3 carved with 10 character pitch, 12 character pitch, and 15 character pitch.
The carriage indicator 7 has a book scale, and the carriage indicator 7 is composed of three lamps such as LEDs, which are mounted on the carriage and light up the lamps corresponding to the pitch specified from the keyboard 10 to indicate the carriage position. is shown on scale 8. The keyboard 10 consists of a character key group 10a for inputting and printing characters, and control key groups 10b and 10c arranged on both sides of the character key group 10a.

FIG. 2 is a front view of the operation panel of the electronic typewriter. In the figure, the "Pitch" key is used to specify the printing pitch (number of characters) per inch, as described above. Details of the display section L1 corresponding to the operation of the "Pitch" key are shown in FIG. 6a. For example, the pitch display section L1 consisting of an LED etc. displays "A" and "A" each time the "Pitch" key is pressed.
It lights up cyclically like "10", "12", "15", and "PS". Here, the unit of "10", "12", and "15" is the number of characters/inch, and when these are displayed alone, it means that the print pitch selection is a fixed manual selection. Also, when "A" is displayed on the display section L1, it is a mode in which the print pitch automatically follows the pitch type of the set type wheel, and in this case, "10" is displayed according to the detected wheel type. ～Any of "PS",
Or a combination thereof is displayed.

Note that this point will be discussed later.

The "Line Space" key indicates the amount of line feed, and the basic unit length 1 of the amount of feed is 1/6 inch.
In this case, as before, the display section L2 lights up cyclically by pressing the key. "PP Select"
The key is a key for specifying printing pressure, and in the same way, when the key is pressed, the display section L3 lights up cyclically. Furthermore, the "RM Control" key at the upper right instructs the function of the electronic typewriter in the right margin. JUST, AUTO, or OFF is selected each time the "RM Control" key is pressed. This is also indicated by the cyclic lighting of lamp L4. When the JUST lamp is lit, select the light alignment function, and when the AUTO lamp is lit, perform auto line feed. OFF literally does not indicate anything.
The "OP control" key is used to determine the printing mode of the electronic typewriter. As before, each time a key is pressed, one of C, W, L, and STORE lights up to indicate the print mode. C
is printing every character, W is printing every word, L is printing every line,
STORE means registration in the internal storage device (text buffer), and when STORE, the mode is set to line-by-line printing L. The "MEMORY" key is used when manipulating character strings (text), and declares the start of operation on the storage device.

FIG. 3 is a block diagram for explaining the operation of the embodiment. In the figure, 11 is a microprocessor (MPU) that controls and monitors the entire device. Further, the input/output ports of the MPU 11 are expanded with a data bus (DB) 12 and an address bus (AB) 13 so that commands and upward transmission to multiple devices can be easily performed. 14 is an address decoder "AD" that decodes the address on the address bus 13.

When the "Pitch" key is pressed, the contacts 15 come into contact in the same way as keyswitches on other keyboards, and a coded pitch selection command signal is sent from the keyboard controller (KBC) 16 to the MPU 11. By counting the occurrence of this signal, the MPU 11 determines that when the order of the command is to select the "Auto" mode, the MPU 11 uses the auto mode selection memory RAM.
Write “ON” information to (ARAM) 20 to store this information. In addition, "OFF" information is written in a cycle in which pitch selection by another manual is selected. The wheel type storage RAM (WRAM) 21 is a random access memory that stores print pitch information corresponding to pitch type information detected from the attached print medium (type wheel).

A printer controller (PC) 17 controls the printer section, and in the figure, a wheel controller (WC) 18 is connected. This wheel controller 18 uses a wheel pulse motor (WM) and an optical wheel sensor (OWS) 19 to make it possible to select printed characters on the wheel and obtain pitch type information of the wheel itself. There is. In addition, a switch (SW) 22 provided in conjunction with the opening and closing of the upper cover 6 in FIG. 1 is used to replace the type wheel, ribbon, etc.
AND when it is open, it is connected via line 23.
This is a switch that sets the gate input terminal AL1 to the "LOW" level and sets it to the "HIGH" level when the gate is closed. The other input terminal AL2 of the AND gate
An output signal from the printer controller (PC) 17 is input to the PC 17, and when the PC 17, which constantly monitors the printer status, detects that the printer is in a normal status, it outputs a "HIGH" level to the line 24. When an abnormal condition such as ribbon end is detected, a “LOW” level is output. Therefore, only when both input terminals AL1 and AL2 are at the "HIGI" level (when the top cover 6 is closed and there is no abnormality in the printer), the output terminal AL3 is "HIGH".
level and run this via line 25 to MPU
I am sending it to 11. In other words, the MPU 11 can obtain information from the AND gate as to whether the printer section is ready for operation or not, and also obtain information from the optical wheel sensor (OWS) 19 when the type wheel is replaced. , you can know the pitch type of the installed type wheel.

Further, a display controller (DC) 26 is provided for display control, and by controlling a display unit (DU) 27 on the operation panel, the above-mentioned print pitch information and the like are displayed.

FIGS. 4a and 4b relate to the processing procedure of the embodiment executed by the CPU 11, and FIG. 4a is a flowchart of key input processing that operates by distinguishing between normal typewriter input and print pitch command input. In the figure, key input from the keyboard 10 is read in step S1. In step S2, it is checked whether the key input is the "Pitch" key. If it is the "Pitch" key, the process advances to step S3, and it is checked whether the number of presses of the key corresponds to the order specified in the "Auto" mode. If it corresponds to "Auto" mode, step S6
The contents of ARAM 20 are turned "ON" in step S4, and if the mode is not in "Auto" mode, the contents of ARAM 20 are turned "OFF" in step S4. In step S5, the selected print pitch information is displayed on the display section L1 of FIG. 6a.

In this case, especially when it corresponds to the "Auto" mode, the display is performed in the manner shown in FIG. 6b. That is, the vertical axis of FIG.
The pitch type automatically set is Pica, Elite,
Among microns and proportions, the pica standard, elite standard, and micron standard are shown, and the display patterns "A" to "PS" of display section L1 in Fig. 6a are shown on the horizontal axis. . Therefore, as can be seen from Figure 6b, the command is "Auto".
When the mode corresponds to the "Auto" mode, a combination of the display "A" indicating the "Auto" mode and the print pitch information "10" to "PS" determined by the type wheel is displayed. At that time, “A” is displayed as ARAM20.
This is done when the content of is ON, and which print pitch is displayed is determined by the type wheel type information stored in the WRAM 21 (for example, 0,
1, 2, 3, 4, 5). Especially if the type information is 3 to 5, proportional “PS”
is also displayed.

When the command does not correspond to the "Auto" mode, the selected printing pitch is displayed regardless of the type of printing wheel type information because it is a forced selection using the "Pitch" key.

Returning to FIG. 4 again, if it is determined in step S2 that the key is not the "Pitch" key, proceed to step S7.
Executes the corresponding key input function just like a regular typewriter.

FIG. 4b is a flowchart showing the interrupt processing of the CPU 11 when the AND gate output in FIG. 3 changes from "LOW" level to "HIGH" level or from "HIGU" level to "LOW" level. . As described above, there are two cases in which the output terminal AL3 of the AND gate changes to the "LOW" level: printer abnormality and upper cover 6 open. In step S11, the status is read from the printer controller 17 in order to identify this. In step S12, it is checked whether the printer is abnormal or not. If the printer is not abnormal, it is determined that the cover is open, and the process proceeds to step S13. In particular, in step S13 of the interrupt input where the AND gate output changes from the "LOW" level to the "HIGH" level, the type wheel type is is read from the optical wheel sensor (OWS) 19 shown in FIG. This information is sent to the wheel type storage RAM (WRAM) 21 in the process of step S14.
Update its contents. In step S15, the changed wheel type is sent to the display section L1, and the display is controlled according to the conditions described with reference to FIG. 6b. Therefore, if the type wheel is replaced while in "Auto" mode, the display will change accordingly.

If there is an abnormality in the printer in step S12, the operator is notified of the abnormality by a buzzer (not shown) or a message in step S16, and the abnormality is confirmed in step S17. Wait for it to be released, and when it becomes normal, end the interrupt processing.

Although FIGS. 6a and 6b have already been described with reference to FIG. 6, FIG. 6a is a partially enlarged view showing details of the display section regarding the display section and display control of the embodiment. In the figure, display area L1 from "10" to "PS" shows the selected print pitch, display area L2 shows the line space amount, and display area L
3 is an area for displaying printing pressure. Further, FIG. 6b is a diagram for explaining the display control of the embodiment on the display section L1 as described above.

In the above-mentioned embodiment, the print pitch mode shifts to cyclic when the "Pitch" key is pressed, but instead, a dedicated "Auto" key (not shown) is provided, and by pressing the "Auto" key, the printing pitch mode changes to cyclic. , change from manual mode to "Auto" mode at any time.
Alternatively, it may be possible to change from "Auto" mode to manual mode. This will increase the number of keys, but it will be more convenient to operate. The process in this case is the fifth
This is shown in the key input process in the figure. Here, steps that perform the same processing as in FIG. 4a are given the same numbers and their explanations are omitted. At step T1, it is determined whether the key input is the "Auto" key or not. If the key input is not the "Auto" key, the process of step S7 (described above) is performed. Also, if the "Auto" key is pressed, proceed to step T2, and
The contents of the auto mode selection storage random access memory (ARAM) 20 shown in the figure are reversed from ON to OFF or from OFF to ON. That is, "Auto"
Each time the key is pressed, it switches between auto mode and manual mode.

[Effects] As described above, according to the present invention, even when there are many types of printing pitches, they can be effectively identified and displayed in a limited area. For example, even in the auto mode in which the print pitch is automatically set according to the pitch of the loaded print medium as in the embodiment, the display "A" to that effect, the display "PS" to indicate that it is proportional, and the print pitch can be seen at a glance. As a result, there is no need to open the cover and check the print medium pitch as in the past, and the excellent effect of preventing pitch selection errors can be obtained.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of an electronic typewriter according to an embodiment of the present invention, FIG. 2 is a front view of an operation panel of the electronic typewriter, and FIG. 3 is a block configuration diagram for explaining the operation of the embodiment. Figure 4 a is CPU1
1 is a flowchart of the key input processing executed; FIG. 4b is a flowchart showing the interrupt processing of the CPU 11 when the AND gate output of FIG. 3 changes;
FIG. 5 is a flowchart showing another embodiment of the key input process, FIG. 6a is a partially enlarged view showing details of the display section, and FIG. 6b is for explaining display control of the embodiment on the display section L1. This is a diagram. Here, 11... microprocessor (MPU), 12... data bus (DB), 13...
Address bus (AB), 14... Address decoder, 15... Contact, 16... Keyboard controller (KBC), 17... Printer controller (PC), 18... Wheel controller (WC),
19...Optical wheel sensor (OWS), 20...
...Auto mode selection memory RAM (ARAM), 21
...Wheel type memory RAM (WRAM), 22
...Switch, 23, 24, 25...Line, 2
6...Display controller (DC), 27...
...Display unit (DU).

Claims (1)

[Scope of Claims] 1. An instruction means for instructing a mode for automatically setting the print pitch; a detection means for detecting character pitch information possessed by the print medium; and when the automatic print pitch setting mode is instructed by the instruction means; a print pitch setting means for automatically setting print pitch information based on the detection result of the detection means; and a display indicating that the print pitch automatic setting mode is in effect when the print pitch automatic setting mode is instructed by the instruction means and a proportional display. A document processing device comprising display means for simultaneously displaying a display indicating a print pitch and a more detailed display of a print pitch type using a combination of different display elements.