JPS6271681A - Printer - Google Patents

Abstract

PURPOSE:To increase printing speed by storing information on the completion the application of ink to types in a memory and enabling immediate printing to be carried out without contacting an ink roller when the ink has already been applied. CONSTITUTION:When printing any of characters, first and second counters 15, 16 obtain through arithmetic operation, types which have been inked through their contact with an ink roller 8 following the rotation of a daisy wheel 1. A memory 18 stores inked types. A control circuit 11 which receives a printing command signal from a keyboard 10 and controls a printing mechanism 13 according to a program of a program memory 12 checks whether types are already inked in accordance with data of the memory 18 when the next characters are to be printed. If inked, the control circuit moves types directly to a printing position to perform printing. However, if not inked, the circuit control is performed in such a way that types after being inked by the ink roller 8, are moved to a printing position for printing.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a printer device that prints by applying ink to a daisy wheel using an ink roller.

(b) Conventional technology The applicant has developed a printer device that prints by applying ink to a daisy wheel using an ink roller.
The application has been filed as shown in Publication No. 150748. The device of this application is characterized in that the ink roller is installed as close as possible to the printing device, and the rotation of the daisy wheel is controlled so that the ink roller is moved to the printing position in the shortest possible time after applying ink to the type to be printed. be. However, in this method, each time when printing, the type to be printed is moved to the position of the ink roller, coated with ink, and then moved to the printing position, so it is difficult to print one - character. The drawbacks were that it took a long time to process and the printing speed was slower than the ink ribbon method.

(c) Problems to be Solved by the Invention The present invention has been made in order to eliminate the above-mentioned drawbacks, and provides a printer device that uses an ink roller type but achieves a printing speed equivalent to that of an ink ribbon type. be.

(d) Means for Solving the Problems The present invention provides a means for calculating and determining the printed characters coated with ink by contact with the ink roller as the daisy wheel rotates when printing any character. and means for storing printed characters that have been completely coated with ink, and when the next character is to be printed, it is determined from the storage means whether or not ink has already been applied to the printed characters, and if ink has been applied, it is determined from the storage means. It is composed of a control means that moves the type directly to the printing position to perform printing, and if ink is not applied, then applies ink to the type using an ink roller, then moves the type to the printing position and performs printing. It is.

(E) Function Since the present invention is configured as described above, when printing, data indicating whether or not ink has already been applied to the printed characters is read from the storage means, and if ink has already been applied, the data is read from the storage means. moves the type to be printed directly to the printing position,
If no ink has been applied yet, the type to be printed passes through an ink roller and after applying ink is moved to a printing position and printing is performed.

(f) Examples Examples of the present invention will be described below with reference to the drawings. 1 and 2 are diagrams showing the configuration of the printer device of the present invention, in which a pulse motor (2) that rotationally drives a daisy wheel (1),
Hammer (3) that hits the type on the daisy wheel (1)
A carriage (5) on which a plunger (4) for driving a hammer (3) is mounted is slidably supported by guide shafts (6) (6), and is attached to a platen (7) by a well-known indexing mechanism (not shown). It is configured to move sequentially along the The ink roller (8) is provided at a position that does not interfere with the platen (7) and is close to the hammer (3), and is configured to come into contact with the type when the daisy wheel (1) rotates, but it is not in a standby state. In this case, it faces the notch of the daisy wheel (1) which has no type.

Therefore, when printing, place the printing paper (
9), select the desired type by controlling the pulse motor (2) and rotating the daisy wheel (1).
By energizing the plunger (4) and driving the hammer (3), selected characters on the daisy wheel (1) are struck against the platen (7). Ink is applied to the type by contact with an ink roller (8) during rotation of the daisy wheel (1), and printing is performed on printing paper (9).

When printing is completed, the carriage indexing mechanism is fully driven and the carriage (
5) is moved to the next printing position.

Figure 3 is a diagram showing the configuration of the control circuit, and (10) is a keyboard consisting of numeric keys, alphabet keys, special symbol keys, etc. You can select a printed character by key operation and press the key corresponding to the selected character key. It is configured to output the message. (11) receives a print command signal from the keyboard (10) and operates the print mechanism (13) according to the program in the program memory (12).

The control circuit is composed of a microprocessor. A motor drive signal (Sl) is output from the control circuit (11).
, plunger drive signal (Sl), carriage drive signal (
S3) etc. are supplied to the printing mechanism (13), and the printing mechanism (1
3), a signal (S4) instructing the initial position of the daisy wheel (1) is supplied to the control circuit (11).

(14) is a print code storage circuit in which the code number corresponding to the print character of the daisy wheel (1) is stored; in this case, the daisy wheel (1) is 10 as shown in FIG.
It consists of 0 characters (the part facing the ink roller is partially missing), and each character is given a code number from 0 to 99. For example, the letter A is number 10. In this way, the code number corresponding to each printed character is stored in the printed character code storage circuit (14). The control circuit (11) searches for a printed character code corresponding to the printed character input from the keyboard (10), and outputs the corresponding code number. (15> is the first counter that counts how many degrees the daisy wheel (1) has been rotated from its initial position. It is composed of up and down counters, and the daisy wheel (t) is driven by a pulse motor ( When 2) is rotated clockwise, it is controlled to be an up-counter, and when it is rotated counterclockwise, it is a down-counter.The pulse motor 2) is controlled to count up or down by the pulse input that drives it. It is configured. Also, this first count (15>) is configured as a decimal count, and when it counts up to 99, the next count becomes 10, and conversely, when it counts down to 101, the next count starts from 99.

Furthermore, the ding wheel (1) returns to the initial position, and the initial position signal (S) is sent from the printing mechanism (13) to the control circuit (11).
4) A reset statement is provided so that the reset can be completed when the supply is exhausted. The control circuit (1st part) is the first counter (1st part).
The values of 5) are taken in as appropriate and arithmetic processing is performed for motor control.

<16) is a second counter composed of a down counter, and when a preset enable signal (PE) is generated, the data that has been completely supplied from the control circuit (11) is preset, and the pulse that drives the pulse motor (2) is preset. is configured to count down with the supply of When the down count reaches 0, the control circuit (11) receives a signal (S
5) and stops the generation of pulses that drive the pulse motor (2). (17) is a pulse generation circuit that generates pulses to drive the pulse motor (2) that drives the daisy wheel (1), and the control circuit (11) that receives the pulse output outputs pulses to the pulse motor (2) according to the rotation direction. At the same time, the clock pulses are supplied to the first counter (15) and the second counter (16). (18) is daisy wheel (1)
This is a memory that stores data on whether or not ink has been completely applied to each printed character, and in this case, it has a capacity to store data for 100 printed characters, and corresponds to each printed character code in the printed character code storage circuit (14). The writing and reading of data is controlled by a control circuit (11).

Next, the operation of the present invention having such a configuration will be explained based on a flowchart.

First, in the case of the present application, as shown in Fig. 4, the daisy wheel (
The initial position is set to 1) when the 0th character of the character code is at the print position rP, the ink roller (8) is set to the position of the 20th character, and the daisy wheel (1) is set to the position of the 20th character.
) is the 20th and 70th type boundary line that determines the direction of rotation.
Set to the line connecting the th typeface.

As shown in the flowchart of FIG. 5, the basic operation of the present application is to determine in step (503) whether or not ink has been applied to the printed characters, and if the ink has been completely applied, In the processing routine (512>), a corresponding printing operation is performed, and if no ink is applied, the printed characters are in the areas r I , r I ,
r (2), the respective processing routines (509, 510, and 511) perform corresponding processing operations to print.

Next, specific operations will be explained in detail.

First, the operation of printing with the daisy wheel (1) stationary at the initial position will be described.

First, the characters whose print code is number 20 or lower, that is, the area r1. When selecting a type, when a print key signal is generated from the keyboard (10), the control circuit (11) selects a corresponding print key signal from the type hood storage circuit (14) based on the key signal that has been input from the keyboard (10). Read out the type code "K" and then read out the type code r from the memory (18)
Read the data in the area corresponding to “K” and perform step (5).
In step 03), it is determined whether or not the printed characters are coated with ink. Until now, the Digi-wheel (1) was in the initial position and no ink was applied to the type, so the control circuit (
11) proceeds to the next step (504>), reads out the value "I" of the first counter (15), and calculates 'Print code + first counter value'.
is at the initial position, the value of the first counter (15) is 10□, and the calculation result I''N'' is the same as the printed character code data. Therefore, for example, if the 10th printed character is selected, the calculation result is 110. becomes. Subsequently, in step (505), the control circuit (11) determines whether the calculation result rH4 is greater than '100J. In this case '100. Then, in step (507), the calculation result r N
, is larger than 170'', and further, in step (508), it is judged whether or not it is smaller than 120''.Since the current calculation result r N is 110'', which is smaller than 20, the The process proceeds to a processing routine <509) for printing characters in the area "rl" shown in FIG. 6. and step (601
), perform the calculation '20-N,' and the calculation result '1
0” to the second by the generation of the preset enable signal (PE).
Preset the counter (16). Then step (
602), perform the calculation of ``Print food < I () + 20J, and in the next step (603), determine whether the calculation result I''Kl is greater than l''100. Now, 'K' J Ha' 30. -c' Since it is smaller than 100J, the next step (605) is to compare the magnitude of 'K' and 'ni'.a 'K' is smaller than 'K', so the next step (606) is to compare the magnitude of 'K' and 'Ni'. -1 to ''' (range of T in Figure 10(b)), i.e. from number 10 to number 3.
The data showing that ink was applied to the number 0 type character is
After writing in the corresponding area of the memory (18), clear the data in the area of the memory (18) corresponding to the type hood 'KJ' to be printed in step (60g), that is, the type number 10, and confirm that no ink has been applied. After completing the above condition setting process, the control circuit (11) controls the rotation of the daisy wheel (1) using the steps (609 and 610).In other words, the control circuit (11) (13)
A pulse motor (2) drives the daisy wheel (1) of the
) is generated clockwise, which drives the pulse motor (2) and rotates the daisy wheel (1) clockwise (see Figure 10(b)).At the same time, the pulse is generated to rotate the second counter ( 16), the second counter (16) counts down by 1, and when the 1o pulse λ is applied, it becomes "0" and the pulse generation is stopped by generating the signal (s5). wheel(
1) rotation is stopped. As a result of this rotation, ink is applied to the 10th printed character of the daisy wheel (1) by the ink roller (8). At this time, the pulse motor (2
) clockwise rotates the first counter (15
), the first counter (15) becomes 1.
10 no, 1 na up count. Gun control circuit (1
1) proceeds to step (810) shown in FIG. 8, generates a preset enable signal (PE), presets data "20" to the second counter (16), and proceeds to step (81).
In step 1), a pulse is generated to rotate the pulse motor (2) counterclockwise, and the daisy wheel (1) is rotated counterclockwise until the second counter (16) counts down to rO. When the second counter (16) counts down to 1 oj, the rotation of the daisy wheel (1) is stopped when the pulse generation stops, and the 10th type to be printed is positioned at the printing position rp. (10th
The control circuit (11) then proceeds to step (513) shown in FIG.
2) is generated in the printing mechanism (13) and the plunger (4) is energized, thereby driving the hammer (3) and hitting the 10th character at the printing position against the platen (7) to print. The first counter (15) is connected to the pulse motor (2
) is counted counterclockwise, resulting in a count of 20 degrees, resulting in 19o, indicating that the number 0 print is at the number 90 print position.

Next, when the daisy wheel (1) is in the initial position,
The operation of printing the character No. 50 on the type hood in the area "■" will be explained. In this case, after going through the same steps as described above, the calculation result 1N' becomes '5o', so the processing routine (51
0), and in step (701) the second counter (16) G: Preset the data "5o", and then in step (702) perform the calculation of '120-IJ and obtain the calculation result 1■' is 120, which is larger than 100, so in step (704>), perform the calculation 'I' - 100, and set 'I' to 20.
+20. The calculation result ``K' is 1.
Comparing whether it is a dog or not from 00, now '''K' is '50
”, “K′” becomes “70.”.

Next Step (708) Te' I 'J To'K'p
(7) Comparison is performed and ``I' is not greater than 1'', so proceed to step (709) and become ``l''J~''''.
(7) After writing data indicating that the ink has been completely applied to the printed characters in the range (T range of 101m(c)), that is, the printed characters No. 20 to 70, in the corresponding area of the memory (18). In step (711), the data in the area of the memory (18) corresponding to the printed character code 'KJ, ie, the 50th character, is cleared and set to a state where no ink is applied. The IR control circuit (11) generates a pulse to rotate the pulse motor (2) counterclockwise in step (712) as described above, so that the daisy wheel (1) rotates counterclockwise to the second counter. (16) is counted down and rotated until it becomes r□.

When 50 pulses are generated, the second counter (16) becomes 10'', so the 50th printed character is positioned at the printing position (see Figure 10 (C)).At this time, the 50th printed character is not printed. Ink is applied by contacting the ink roller <8) while rotating to the position. Therefore, if the hammer (3) is driven at this point, the 50th character can be printed. At this time, the first counter (15) counts down from "0" and has a value of r50°.

Next, we will explain the operation of printing the type characters in the area "■" whose type code is between 70 and 100.0 For example, if the type hood number 80 is selected using the keyboard (10), the same steps as above are performed. After that, the calculation result r
Since ``N'' is ``r80'' which is larger than ``70'', the processing routine (511
), and in step (801) '100-N+
20. The calculation result is transferred to the second counter (16
). Next, the control circuit (11) calculates '120-IJ' in step (802) and compares whether the calculation result '11' is greater than 100 in step (802).
03), the current calculation result rI' is 120, so step 5-y f(804)
-100J is calculated and the result of the calculation is ``20''. +
In step (805), a comparison is made between the 0th printing code rK'' set to , and !', but 'K, curr8
0. -1'r I'Jノ'20J, proceed to step (807) with Nisu Dai 8 Ino, and proceed to "K~99. and 10~■'
, (range of T in Figure 10(d)), i.e. 80
After writing the data indicating that ink has been completely applied to the printed characters numbered 99 and 0 to 20 in the corresponding area of the memory (18), the printed character code r is printed in step (807). K, that is, the memory corresponding to number 80 (
Clear the data in the area 18) and set it to a state where no ink is applied. Next, in step (808), the control circuit (11) generates a pulse that rotates the pulse motor (2) clockwise as described above, and the second counter (
Rotate the daisy wheel (1) clockwise until 16) is counted down to rO,. In this case, the second counter (16) is preset to "40", and 4
When the 0 pulse is generated, that is, the type of type hood No. 80 comes into contact with the ink roller (8) and ink is applied, the pulse generation is stopped and the daisy wheel (1) is temporarily stopped. Next, the control circuit <11> proceeds to step (StO>), presets the second counter (16) to data "20", and in steps (811) and (812) controls the pulse motor (
2) generates a pulse that rotates the daisy wheel (1) counterclockwise. When 20 pulses are generated and the second counter <16) becomes "0", the pulse generation is stopped and the rotation of the daisy wheel (1) is stopped, so that the printed character with the printed code number 80 is moved to the printing position rP.
” can be located. Therefore, if the hammer (3) is driven here, it is possible to print the type of type hood No. 80 (see Fig. 10(d)). At this time, the first counter (15)
is counted up by 40. when the pulse motor (2) rotates clockwise, and then counted down by 20 when the pulse motor (2) rotates counterclockwise, resulting in a value of 20.

Next, an explanation will be given of the operation in the case of continuous printing.For example, after printing the first-described character of the character code No. 10, the operation of printing the character of the character hood No. 50 will be described. At this time, after printing the print character with the print code number 10 as described above, when the key signal of the print code number 50 is generated from the keyboard (10), the control circuit (11) that has taken in the key signal stores the print code code. Circuit (14)
The step reads the corresponding type hood number data "50" from the memory (18), reads data from the area corresponding to the type hood 150'' in the memory (18), and determines whether ink has already been applied to the type 50. (503)
When the 10th type is printed, the ink is applied only to the 11th to 30th type, but not to the 50th type, so the control circuit (11) performs step (5G4). ) and performs an addition operation between the type code rK and the value rl of the first counter (15).The value of the first counter (15) is 9.
0'', and the calculation result r N is '140J, which is 1
Since it is larger than 00, in step (506) 'N-100,
Then, in steps (507) and (508), the calculation result 140'' is set to r N ,
The processing routine (510) shown in FIG.
Proceed to. Then, control is performed based on the steps shown in FIG. 7 in the same manner as in the case of printing the above-mentioned type number 50. However, in this case, N-40, I'-30, K' is 70, data "40" is preset in the second counter (16), and in step (709), numbers 30 to 7 of the memory (18) are preset.
Data indicating that ink has been applied is written to area No. 0, and in step (711), data in area No. 50 of memory <18) is cleared. This result memory (18)
This means that ink-applied data has been written in areas numbered 11 to 70, excluding number 50. Subsequently, in steps (712) and (713), the control circuit (11) generates a pulse that rotates the pulse motor (2) counterclockwise, thereby rotating the daisy wheel (1) counterclockwise. The rotation of the daisy wheel (1) is controlled by the second counter (16).
> is counted down to ``0'' for 40 pulses (see Figure 10(e)). Therefore, when the second counter (16) reaches ``0'', the print character with the print code number 50 is located at printing position "P", and the hammer (
By driving 3>, it is possible to print the number 50 characters. At this time, the first counter (15) is counted down from "90." to "40." and becomes r50.

In addition, when printing the type code number 40 using the controller 5, data is read from the area corresponding to type hood number 40 in the memory <18) in the same manner as described above, and the ink is applied to the type code number 40. It is determined whether or not.

Since ink has already been applied to the printed character No. 40, the control circuit (11) proceeds to the processing routine (512) shown in FIG. 9 for the case where ink has already been applied. And in step (901) type food 'K J (7) '40J
1st counter (15) (7) fi&'50'' (7
) performs an addition operation and sets rNj to "90." Next, in steps (902) and (904), the values of r N are compared and the operation result "10" is set to the second counter (16).
Preset to 0 Then in step (906) +2 to '
0J is calculated and the calculation result ``60'' is set to ``rK''', and then in step (909), ``120-I'' is calculated and the calculation result ``70'' is set to ``I'''.

Then, in step (912), "K'" and 1! ′ is compared, and in step (913) the memory (
18) Write the inked data in the area corresponding to the type hoods No. 60 to No. 70, and proceed to step (91).
In step 5), clear the data in the area of the memory (18) corresponding to the type hood number 40 to be printed. Next, the control circuit (11) generates a pulse to rotate the pulse motor (2) clockwise in steps (916) and (917),
The daisy wheel (1) can be rotated clockwise. The rotation of the daisy wheel (1) is determined by the second counter (16).
This continues for 10 pulses until the count reaches "0" (see Figure 10 <r>), and therefore the second counter (1
6) When becomes r□, the print character with print code number 40 is positioned at print position ``P''.

By driving the hammer (3), the type hood No. 40 can be printed. At this time, the first counter (15) is "
``50'' is incremented by ``10'' and becomes ``60J.''

Next, the operation of printing the same character No. 40 again will be explained.

When the key signal of print code No. 40 is generated from the keyboard (10), the control circuit (11) takes in the key signal.
Step (503) reads data from the area corresponding to print code No. 40 in the memory (18) in the same way as described above.
It is judged whether the ink has been applied or not, but the previous 40
Since the area No. 40 in the memory (18) has been cleared when printing the letters numbered, it is determined that no ink has been applied, and the process proceeds to step (504). and step (504
) performs the calculation rK+IJ and sets the calculation result 'too' to rN. Thereafter, in the same manner as described above, the process proceeds to the processing routine (509) shown in FIG. 6 through steps (SOS> to (508), and after performing the prescribed processing,
The processing routine (511) shown in the figure is entered and printing is performed.

In other words, the number 40 type is first moved clockwise by the ink roller (8).
After it is rotated to the position , and the ink is completely applied, it is rotated counterclockwise to the printing position rPJ and printed (Fig. 10 (g)).
reference).

When printing is finished, numbers 41 to 6 are stored in the memory (18).
The data obtained by applying ink to the area up to number 0 is written, and the value of the first counter (15) becomes 160.

Finally, the operation of printing the 55th character after printing the 40th character will be explained.

When the key signal of type hood No. 55 is generated from the keyboard (10), the control circuit (11) that takes in the key signal
, it is determined whether or not ink has been applied in step (503) as described above, but since ink has already been applied to the type 55, the processing routine (51) shown in FIG.
Proceed to 2), and in step (901), calculate +I to ' to find rN, but since rN' is 115' and is larger than 100, step (903) l: Advance '
N -100J (7) Perform the calculation ft I perform t! 115 of the result is set to r N j, and step (904)
It is determined whether the value is greater than "50", that is, it is determined in which direction the daisy wheel (1) should be allowed to rotate. The determination result control circuit (11) performs step (918
) and the data 115 of rN is stored in the second counter (16).
”. From then on, the steps (919) are the same as above.
~(925) performs arithmetic processing, and step (926)
In step (928), ink-coated data is written in the area of print codes 60 to 75 in memory (18).
Clear the data in area No. 55 of the type to be printed.

Then, in steps (929) and (930), the pulse motor (
2) counterclockwise by 15 degrees to print at the printing position "P,"
By driving the hammer (3) after positioning the hammer (3), printing of type code No. 55 is performed. In this case as well, since ink has already been applied to the letters of the letter code No. 55, the letters can be moved directly to the printing position rP without contacting the ink roller (8).

In this way, when there is continuous key input, it is determined whether or not the input printed characters are coated with ink, and arithmetic processing is performed based on the printed character code data and the value of the first counter (15). By controlling the rotation direction and rotation angle of the daisy wheel (1), printing can be performed continuously in the shortest possible time.

If the key input cannot be input continuously for more than a predetermined time in step (515), the control circuit (11) determines the value of the first count (15) in step (516),
When the number is 11 to 50, the daisy wheel (1) is rotated counterclockwise, and when the number is 151 to 99, the daisy wheel (1) is rotated clockwise to return the daisy wheel (1) to its initial position. When the initial position signal (S4) is generated by returning the daisy wheel (1) to the initial position, the control circuit (11)
At the same time as resetting the counter (15), the memory (18)
).

In the embodiment, the ink roller is provided on the right side of the printing position, but it can also be provided on the left side, in which case the direction of rotation of the daisy wheel (1) will be opposite to that in the embodiment.

(G) Effects of the Invention As mentioned above, the printer device of the present invention uses an ink roller, which simplifies the printing mechanism. By being configured to print immediately without contacting the ink roller if the type has already been applied, it is possible to achieve a printing speed that is approximately twice that of the conventional method in which the type is brought into contact with the ink roller each time it is printed. It is possible to do this, and it has great practical effects.

[Brief explanation of drawings]

FIG. 1 is a side view showing a printer device of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a block diagram showing the configuration of a control circuit of the present invention, and FIG. 4 is a daisy wheel and an ink roller of the present invention. FIG. 5, FIG. 6, FIG. 7, FIG. 8, and FIG. 9 are flowcharts showing the operating state of the present invention, and FIG. 10 is a plan view showing the operating state of the daisy wheel. It is a diagram. (1)...Dizzy wheel, <2>...Pulse motor, (3)...Hammer, (4)...Plunger,
(5) Carriage, (7) Platen, (8
)...Ink roller, (10)...Keyboard,
(11)...Control circuit, (12)...Program memory, (13)...Printing mechanism, (14)...Print code storage circuit, (15)...First counter, (16)... )
...Second counter, (17)...Pulse generation circuit,
<18)...Memory.

Claims (1)

[Claims] (1) In a printer device configured to print by applying ink to printed characters on a daisy wheel using an ink roller, a means for storing whether ink has been applied to each printed character or not, and a means for storing the information during printing. The data of the type to be printed is read from the means, and if the ink has been applied, the type to be printed is immediately moved to the printing position and printing is performed, while if the ink has not been applied, the type to be printed is temporarily inked. 1. A printing device comprising a control means for controlling the roller to move to a printing position and print after applying ink.