JPS6032689A - Printing apparatus - Google Patents

Abstract

PURPOSE:To perform line feed only by key manipulation, by performing line feed by inputting arbitrary numerical value data integer times of a min. line feed amount sufficiently smaller than a character size. CONSTITUTION:Line speed amount data is stored in memory 4 from a control circuit 3 or outputted to the control circuit 3 from the memory 4 corresponding to a line feed number indicating signal inputted to the control circuit 3 from a function keyboard part 2. A line feed motor driving signal pulse is subjected to power amplification by a drive circuit 5 to be transmitted to a gear system 7 through a stepping motor 6 and rotary force is imparted to a platen 9.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an improvement in a line feed (paper feed) device of a printing device.

(Prior Art) In conventional printing devices, such as electronic typewriters, the line feed is controlled by operating levers or switches labeled with "l", "1 !4'" + or 2", respectively. They selected lines such as 1st line, 11A line, or 2nd line.

However, the conventional method described above has the disadvantage that the types of line feeds are limited and cannot be finely adjusted, making it impossible for the user to select the line feed amount to a fine arbitrary amount.

(Purpose) This invention was made in order to improve the above-mentioned drawbacks, and it is possible to use an arbitrary line leading amount that is an integer multiple of the minimum unit, with a line leading amount that is sufficiently smaller than the character size as the minimum unit. The purpose is to enable people to make choices.

(Example) Hereinafter, this invention will be explained based on the drawings.

FIG. 1 is a block diagram of a line feed system and a control system in an electronic typewriter according to an embodiment of the present invention. 1 is
A keyboard section for inputting information related to printing operations such as characters and symbols on a typewriter.A-Z, 0-9. Each * symbol key etc. is arranged and inputted to the control circuit 3 via the line/l. 2 is space, carriage turn,
F/R/Y/movements such as paper feeding and margin settings.

This is a function/keyboard section for inputting information regarding mode settings such as setting and resetting tabs, and similarly to the keyboard section 1, input is made to the control circuit 3 via the line 12 [7]. This control circuit 3 includes a read-only memory that converts microinstruction information for sequential control into digital signals and performs storage, t conversion, information discrimination, etc., an arithmetic unit that performs arithmetic processing according to information from the read-only memory, and a numerical value It consists of a group of registers for holding data, an adder register for performing calculations, and a control section for performing other controls. Reference numeral 4 denotes a memory for storing data regarding the amount of line feed, and corresponds to a line feed number instruction signal input from the function keyboard section 2 to the control circuit 3 via line 12.
The line feed ambiguity data from the C1 control circuit 3 is stored or output to the control circuit 3 via the line 13. 5
1 is a drive circuit for the line feed motor 6, which converts the line feed motor drive signal pulses outputted from the control 1 circuit 3 via the line 14 into power for driving the motor and amplifies the power. Reference numeral 6 denotes a stepping motor for line feeding, which is outputted from the drive circuit 5 via line/l.

In response to the number of pulses, the rotation is performed by an integral multiple of the minimum feed amount, and the rotation is transmitted to the gear system 7 [7, which applies rotational force to the platen 9 that feeds the paper 8. type unit.

Carriage 10 consisting of a hammer, ink ribbon, etc.
is in a state where it can move in the line direction (in the direction of the arrow in FIG. 1) facing the platen 9 and performs printing.

As an example, if the minimum line feed unit f is the feed amount [, /8 of one line, the normal feed amount is [, 1%, and for two lines, the line feed l resets to 8f, 12f, and 16f, respectively. Bye. Also, for the feed amount of one line or less, the minimum l/
/ For feed amount up to 8 lines and 2 or more lines, Nxf(N
≧16), this is possible as long as the data capacity of N allows.

FIG. 2 is a flowchart showing the line feed amount setting and line feed operation according to this embodiment. First, a line feed setting mode signal is input from the function keyboard section 2 to the control circuit 3 using the line feed set key 1τ (ivml) (step 1), and then the numeric key group on the keyboard section 1 is used to instruct the line feed 3-. When inputting arbitrary integer value data (Step 2
), the data regarding the line feed amount from the control circuit 3 is stored in the memory 4.
(step 3), and the setting of the line advance meter is completed. C that follows input from all keyboard sections for normal various printing
After the execution (step 4), when the carriage return or paper feed key is input (step 5), the control circuit 3
reads the data from the memory and outputs a control pulse corresponding to the data to the line feed motor 6 through the drive circuit 5 (step 6), and performs the line feed (paper feed) operation of the first feed target. is executed (step 7). It then returns to the standby state, waiting for key personnel.

(Middle Embodiment) An application example of the above embodiment and [7] If a display device is attached to an electronic typewriter to display the line leading setting mode and line leading data, the line leading function can be made more convenient for the user. It becomes easy.

Also, if you enter all the minus signs along with the leading data,
Row return operation is also possible.

4- (Effects) As explained above, the present invention is configured so that a line feed meter with an arbitrary integral multiple of the minimum line feed furrow f, which is sufficiently smaller than the character size of the printing device, can be selected. / Manual operation of the knob 12 Line spacing printing, line shift printing, and 5 line return printing can now be done with just a key operation, and fine adjustment of line leading when creating diagrams etc. using various symbols. This makes it easier to achieve the effect of realizing a finer figure ffk than in the past.

[Brief Description of the Drawings] Fig. 1 is a block diagram of the line feed system and control system in an electronic typewriter which is an embodiment of the present invention, and Fig. 2 is a block diagram of the line feed mochi set and line feed of the present embodiment. It is a flowchart showing the operation. 1...Keyboard section 2...Function keyboard section 3.
...... Control circuit 4 ...... Line feed amount data memory 5 ...
... Line feed motor drive circuit 6... Line feed motor 7... Line feed transmission gear system 8...
...Paper 9...Platen 10...Carriage

Claims (1)

[Claims] When the minimum line spacing is set to f and L, which is sufficiently smaller than the font size, enter arbitrary numerical data N that is an integral multiple of f, and enter f.
A printing device characterized in that it is configured to perform XNO line feeding and allow a user to finely adjust the line feeding.