JPH0475138B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of operating the centering function between the left and right margins and the centering function between the tabs of an electronic typewriter.

Conventional configurations and their problems Conventionally, some electronic typewriters have been equipped with a centering function that automatically prints between the left and right margins or between tabs, but many of these Each of the above-mentioned centering modes is entered by operating a button, making the operation complicated.

Purpose of the Invention The present invention solves the above-mentioned drawbacks, and provides an easy-to-operate centering function in which centering between the left and right margins and between tabs can be selected by operating a single centering operation button. With the goal.

Structure of the Invention The present invention includes a printing means for printing characters, a display means for displaying characters to be subjected to centering processing, a keyboard section having input of the characters and various control operation keys, and tab settings, cancellations, and tab operations, which will be described later. When the carriage is located on the left margin where no tab is set and the centering key is operated, the carriage enters the centering mode between the left and right margins, and the carriage is placed on the left margin where no tab is set. When it is in the set position, it is configured to enter a centering mode between tabs.

DESCRIPTION OF EMBODIMENTS FIG. 1 is a configuration diagram for explaining the present invention, and FIG.
The figure is a perspective view of an electronic typewriter according to an embodiment of the present invention. Reference numeral 1 denotes a main body, including a keyboard section 2, a display section 3, a centering key 4, a paper feed amount selection switch 5 at line feed, and whether characters input from the keyboard section 2 are displayed on the display section 3 (L/L: Line by
The printer is equipped with a mode changeover switch 6 for selecting direct printing (Line position) or direct printing (TPWR position). FIG. 3 is a detailed view of the keyboard section 2, and in addition to the above description, there are also back spaces 2a,
forward 2b, erase 2c, return 2d, space 2e, repeat 2f, left margin set 2
g, right margin set 2h, tab set 2i, tab clear 2j, margin release 2k, tab 2
l, shift lock 2m, shift 2n, number keys 1 to 9 2g to 2w, reverse index 2x,
It is equipped with an index 2y and 36 other character keys, just like a normal typewriter, and each performs an appropriate operation.

FIG. 4 is a block diagram of the present invention. Although the printing means 8 is not shown, it is configured to print using a ballpoint pen attached to a carriage. It is configured to draw a desired character using a movement motor 9, a line feed motor 8 for vertically moving the attached paper, and a pen vertical movement motor 10 for touching and releasing the pen on the paper. There is. Further, the 8 to 10 motors are controlled by a control means 11, and the control means 11 reads the above-mentioned key inputs from the centering key 4 provided on the keyboard section 2, and prints the operation corresponding to the input. The means 7 is configured to perform the following functions.

Further, FIG. 7 shows a block diagram of the main parts of the control means 11. 11a is a first storage means for storing the current carriage position; 11b is a second storage means for storing a plurality of set tab positions; and 11c is a third storage means for storing the position of the left margin. , the first and second stored data are stored in the first comparing means 1.
1d, and the first and third stored data are compared in the second
are compared by the comparing means 11e. The results of the first and second comparison means are processed by the centering selection means 11f, and selection is made between the inter-tab centering mode and the left-right margin centering mode.

Next, the main points of the present invention will be explained using a flowchart of the main part of the control means 11 shown in FIG. Normally, the program performs processing from start 12 to centering key detection 13, and although not shown, it outputs the input from the keyboard section 2 to the printing means 7, etc., and performs typical typewriter processing. is being carried out. When it is detected in step 13 that the centering gear has been pressed, it is determined in step 14 whether the carriage is on the tab, and if so, the process proceeds to step 18 and enters the tab centering mode. The process then steps
Steps 19, 20, and 21 are followed, and the input from the keyboard section 2 is read and displayed on the display section 3 until the return key is detected at step 21. However, in this case, although not shown, it is well known that the number of input characters is limited so that it does not exceed the number of characters that can be input between tabs. After this, when the return key is detected in step 21, printing processing is performed with tab centering in step 22.

On the other hand, if the carriage is not on the tab at step 14, the process proceeds to step 15. Step 15
If it is determined in step 17 that the carriage is on the left margin, a centering mode between the left and right margins is entered, and the input characters are centered between the left and right margins and printed in the same manner as the tab centering described above. Further, if the carriage is not on the tab or on the left margin, the process proceeds to step 16, and the buzzer sounds and the centering mode is not entered.

Next, an example of printing is shown in FIG. LM and RM are the left margin and right margin, respectively, and o indicates that a tab is set. Now, when the carriage is on the left margin, press centering key 4,
When A, B, C, and D are input and the return key is pressed, the centering is performed between the left and right margins in the figure a, and ABCD is printed as shown in the figure. Also, the same figure b
Then, the tab will be in tab centering mode and printed in the same way.

Effects of the Invention The present invention uses one centering key, and selects centering processing between tabs and processing between left and right margins depending on whether the carriage is on a tab or on the left margin where no tab is set. By configuring the electronic typewriter to be able to do this, tab centering between the left margin and the tab closest to the right side of the left margin is also possible, thereby providing an electronic typewriter with excellent operability.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram for explaining the present invention, Figure 2 is a configuration diagram for explaining the present invention.
3 is a top view of the keyboard section, FIG. 4 is a block diagram of this embodiment, FIG. 5 is a flowchart of the main parts of the control section, and FIG. Figure 6 is an explanatory diagram showing a printing example, Figure 7
The figure is a block diagram showing the main part configuration of the control means. 1...Electronic typewriter body, 2...Keyboard section, 3...Display section, 4...Centering key,
7...Printing means, 11...Control unit.

[Claims]

1. A dot printer head having a guide tube into which a plurality of needles are inserted and a carrier that reciprocates along the platen are provided, and the dot printer is mounted on the carrier so that the center of the guide tube is located on a straight line perpendicular to the platen. A bending regulating surface that slidably supports one side of the head and a mounting surface that supports the bottom of the dot printer head are formed, and a mounting screw is provided on at least one of the mounting surface or the bending regulating surface, and the mounting screw A mounting hole is formed in a part of the dot printer head, and the carrier is provided with an elastic body that elastically presses the dot printer head toward the bending regulating surface and the platen. A dot printer head holding device characterized by: 2. A dot printer head having a guide cylinder into which a plurality of needles are inserted and a carrier that reciprocates along the platen are provided, and the dot printer is mounted on the carrier so that the center of the guide cylinder is located on a straight line perpendicular to the platen. forming a bending regulating surface that slidably supports one side of the head and a mounting surface that supports the bottom of the dot printer head;