JPH0516392A - Recording device - Google Patents

Abstract

(57) [Summary] [Purpose] When the character code and background part are printed in different colors, color mixing should not occur. An image processing method for synthesizing and outputting character data expanded from a character code and a background pattern for the character data, which corresponds to the character data in order to prevent color mixture of the character data and the background pattern. The area is blanked and the background pattern is synthesized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus capable of recording a plurality of colors, and more particularly to a recording apparatus capable of recording a background of data to be recorded in a first color in a second color.

[0002]

2. Description of the Related Art In a conventional printer, when a calculation result is printed in response to a key input on a keyboard, a symbol corresponding to the key input is printed in one line in red or black in one line. Is going. In addition, the printing of a certain key, for example, the printing of the date, the code number, or the non-ad key (# key), which corresponds to the input of the non-ad key, distinguishes the calculation items and means the title. It is used to

[0003]

However, in such a print mode, what is meant by the print output of a certain line when the print paper is viewed after a series of calculations depends on the print form (upper digit print) and It is necessary to judge by the symbol (#) printed corresponding to the key input, and at first glance, it is difficult to make a judgment promptly and appropriately such as the printing by the non-ad key input. Therefore, it takes time to distinguish the calculation items on the printing paper, which is inconvenient.

[0004]

In view of the above points, an object of the present invention is to have a first recording section for recording with a first color and a second recording section for recording with a second color. Recording means, the first
Storage means having a first storage section for storing dot pattern data to be recorded by the recording section and a second storage section for storing dot patterns to be recorded by the second recording section; recording by the first recording section It is an object of the present invention to provide a recording apparatus including a control unit that controls the recording unit and the storage unit so that the background pattern for the dot pattern to be recorded is recorded by the second recording unit.

[0005]

The present invention has at least two recording colors, the first color records data (dot pattern) and the second color records the background pattern of the data, and outputs the dot pattern on the recording paper. The other dot pattern outputs can be markedly distinguished and expressed.

[0006]

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

1 and 2 show a printer according to an embodiment of the present invention. As shown, the printer is
The carriage CA is equipped with a recording head having a first inkjet nozzle N1 for performing printing on the printing paper PP with the above ink color and a second inkjet nozzle N2 for performing similar printing with the second ink color. The carriage CA is driven by a linear motor. The linear motor constitutes a closed magnetic circuit by the members of the permanent magnet PM, the magnetic plate Y1, and the magnetic sliding shaft Y2, and the coil bobbin C capable of sliding on the sliding shaft Y2.
A current is applied to the coil C wound around B to drive the carriage CA that is integral with the coil bobbin CB according to Fleming's left-hand rule. The reciprocating motion of the carriage CA on the sliding axis Y2 is performed by changing the direction of the current flowing through the coil C. The scale plate, for example, the slit plate OS made of a non-magnetic material,
It is vertically fixed to the magnetic plate Y1 together with the sliding axis Y2.

The carriage CA includes a coil C, a coil bobbin CB, ink jet nozzles N1 and N2, sub tanks ST1 and ST2 for supplying ink to these nozzles N1 and N2, a light emitting element such as a phototransistor PT, and a flexible wiring board FL. It is fixed, and also
Home position photodiode LB and phototransistor P
A shielding plate SB that blocks B is integrated. On one terminal FL1 of the flexible wiring board FL, terminals C1 and C2 of the coil CN, terminals (not shown) of piezos PZ1 and PZ2 which are driving sources of the inkjet nozzles N1 and N2, terminals LET of the photodiode LE and terminals of the phototransistor PT. The PTT is electrically and mechanically connected. The other end portion FL2 of the flexible wiring board FL is fixed by a pressing plate P together with the ink supply tubes T1 and T2. Ink supply tubes T1, T2
Is guided rearward by using an air gap magnetically required between the permanent magnet PM and the magnetic plate Y1, and main tanks MT1 and MT2 are coupled to the rear end portion thereof to supply ink to the sub tank ST. Here, the inside of the sub tank ST is divided by a partition into a first sub tank ST1 and a second sub tank ST2. The ink of the first ink color for printing the data stored in the main tank M1 is the first sub tank ST.
The ink of the second ink color, which is supplied to No. 1 and is stored in the main tank MT2, is supplied to the sub tank ST2.

The slit plate OS is arranged perpendicular to the recording heads N1 and N2 between the photodiode LE and the phototransistor PT. This saves space and reduces size. A receiving slit QS having a slit having the same pitch as the slit SS of the slit plate OS is attached to the light receiving portion of the phototransistor PT, and the infrared light emitted from the photodiode LE with the movement of the carriage CA intermittently emits the slit SS. The light is received by the light receiving portion of the phototransistor PT via the receiving slit QS, and the phototransistor PT is repeatedly turned on and off. As a result, the timing pulse TP is generated from the phototransistor PT as shown in FIG. As will be described later, the timing pulse TP detects the speed and position of the carriage CA during carriage scanning, and controls the speed, the inkjet nozzles N1 and N2, and the paper feed pulse motor SP. In addition, the movement of the shielding plate SB along with the movement of the carriage CA causes the phototransistor PB at the home position to move.
Also turns on and off, and indicates the presence or absence of the carriage at the home position.

When printing one line, the characters are formed by a dot matrix, the carriage CA starts scanning by the print command signal, the position is detected by the timing pulse TP, and the first ink color is detected at the predetermined position. In printing, a small dot of ink is ejected by applying a voltage to the piezo PZ1 in the inkjet nozzle N1, and one dot line is printed on the recording paper PP. When the printing of one dot line is completed, the paper feed pulse motor SP is rotated by one dot pitch, and at the same time, the carriage CA is returned to the home position. The phototransistor PB is used to confirm whether the home position has been returned to. Paper feeding is performed by transmitting the rotation of the pulse motor SP to a gear G1 and a gear G2 via a motor shaft gear (not shown) and decelerating the gears G1 and G2. Here, the final-stage gear G2 is fixed to the shaft of the platen PL, and the printing paper PP can be fed by a predetermined amount in the row direction. When this operation is repeated and printing of a predetermined dot line (for example, 7 lines) in the row direction is completed, the pulse motor SP rotates the platen PL by a required amount including the space between lines, and the printing of one line is completed.

Further, in the printing of the second ink color, a voltage is applied to the piezo PZ2 of the ink jet nozzle N2 to eject a small droplet of ink, and one dot line is printed on the recording paper PP. When the printing of one dot line is completed, the paper feed pulse motor SP is rotated by one dot pitch, and at the same time, the carriage CA is returned to the home position. In this way, when the printing of a predetermined dot line in the row direction is completed, the platen PL is printed by a predetermined amount including the printing line.
Is rotated by the pulse motor SP to complete the printing of one line.

After the printing is completed, the ink jet nozzle is moved to the position of the cap KP and stopped. As a result, it is possible to prevent clogging of the inkjet nozzle, drying, and receding of the meniscus.

D1 and D2 are shock absorbing dampers made of foam or the like, which soften the collision of the carriage CA and prevent ink leakage from nozzles and receding of meniscus. Further, since the sub-tank ST is arranged so as not to come into direct contact with Y1, D1, etc., almost no impact force is transmitted, and bubbling in the sub-tank is small. In addition, the sub tank ST (ST1,
The ink amounts of the main tanks MT1 and MT2 that supply the ink to the ST2) through the ink supply pipes T1 and T2 are such that the ink amount of the first ink color having a large usage amount is large and the ink amount of the second ink color having a small usage amount is The main tank as a whole is compact and compact, with a small amount and suitable for practical use.

As described above, the apparatus of this embodiment has the scale plate OS made of a non-magnetic material arranged vertically and is small in size in consideration of the sizes of the main tanks MT1 and MT2 and the size of the sub tank ST.
The structure can be thin and simple. Further, since the rotary motor is not used to drive the carriage CA, the gear,
Since a link, a rack, etc. are unnecessary and a ratchet, a plunger, etc. are not used for paper feeding, an extremely quiet recording device can be constructed.

Further, in the apparatus of the present embodiment, the scale plate OS is provided with the slit SS as shown in FIG. 3 (A), which is used both for position confirmation control and control for constant speed. That is, the slit SS is formed on the printing paper PP as shown in FIG.
The carriage CA starts to move from the initial position HO and the speed is adjusted until 8 slits SS are counted, for example, when the nozzle N1 of the first ink color is used as a reference, and 8 slits are counted. From that time, the printing of one digit is started, the printing of one digit is finished with 5 slits of 8 to 12, and the two slits of 13 and 14 are left blank with the adjacent digit.
After that, this is repeated. AS is an approach slit for detecting the print start position, CS is a character slit, BS is a blank slit, and the carriage movement speed is also kept constant by these slits and their intervals. At the position where the carriage CA starts moving from the home position and the signal of the phototransistor PB changes from OFF to ON, a shielding portion for several slits is provided in consideration of the variation in the position and speed.

The above is the configuration of the printer according to the embodiment of the present invention.

Next, the printing operation of the present invention will be described with reference to FIGS. Here, FIG. 5 shows an example of a keyboard according to an embodiment of the present invention, FIG. 6 shows an example of a control unit for performing the print control of the printer described above, and FIG. 7 shows a timing chart of the printing operation. ..

In the keyboard of FIG. 5, # and T are designated as the specific keys TKEY, and the operation when any one of them is key-input, that is, the specific printing mode will be described. 6 and 5, when the print command PO is input, the flip-flop F1 is set, and the set output signal l1 (L1) is input to the control unit CC.
As a result, the control unit CC enters the printing operation state. In the control unit CC, first, the signal 1SP (L S
The state of the flip-flop F2 set by the input of the specific key TKEY is determined by P), and it is recognized whether or not the specific print mode is instructed by the input of the specific key. When the specific print mode is entered by the specific key input, the flip-flop F2 is set, and when the control unit CC detects that the output signal lSP (LSP) becomes the logic "1", the specific print mode is set and the signal l2 ( L2) is set to "0" for a certain time and flip-flops F1, F
2. Reset the stage counter 7C and speed controller SC. Further, the signal 12 (L2) clears the print digit number counters PC1 and PC2, the first TP separation circuit TB1, the second TP separation circuit TB2, and the 5-bit shift register 5SR via the gate AR. Next, the signal 14 (L4) is set to "1" to open the gate AC, and the contents of the print digit number counter PC1 and the print digit number storage register PR (hereinafter referred to as print digit register PR) are matched by the matching circuit CO. The output taken is detected by the signal 15 (L5) through the gate AC. If they do not match, signal IF (L F)
Set the driver MD as "1" and 1B (El B) as "0".
Thus, the coil C is driven, the carriage CA is moved in the forward direction (see FIG. 3B), and printing is performed.
Now, if the content of the print digit counter PC1 is 0 and the content of the print digit register PR is n digits, the coincidence circuit CO outputs a non-coincidence signal, and the control unit CC detects this and performs the above drive. To do.

As the carriage CA moves in the forward direction, the shield plate SB integrated with the carriage CA moves from between the photodiode LB and the phototransistor PB, and finally the photodiode LB and the phototransistor P.
The area between B is not blocked, and the phototransistor PB is turned on ("1" right arrow "0"). When the phototransistor PB is turned on, the signal 1BC (LBC) becomes "0" and is input to the gate AT via the inverter ITR. Further, the photodiode LE and the phototransistor PT as a detection unit mounted on the carriage CA move the slit plate OS along with the movement of the carriage CA, and the slit SS detection signal, that is, the timing pulse TP is sent to the amplifier circuit AP1 via the signal line FT. Is entered. The timing pulse TP amplified by the amplifier circuit AP1 is passed through the signal line 1TP (LTP) to the gate AT and the speed control unit S.
C and TP clock pulse generator CTP. Here, as described above, the signals 1F (L F) and 1BC (L BC) are supplied to the other input terminal of the gate AT. When the contents of the digit number counter PC1 and the print digit number register PR do not match, the signal 1FA (L F) is supplied as "1". Therefore, as described above, the shield plate SB integrated with the carriage CA is the photodiode LB.
When the signal 1BC (El BC) becomes "1" at the point when it exits from between the phototransistor PB and the phototransistor PB, the gate AT is opened thereafter, and the timing pulse TP is applied to this gate AT.
Through the first TB separation circuit TB1 and the 5-bit shift register 5SR.

The TP clock pulse generation circuit CTP is a circuit that outputs a pulse signal in response to the rising and falling of the pulse of the incoming pulse signal, and supplies the output pulse signal to the 5-bit shift register 5SR. .. The incoming pulse signal is output from this register 5SR with a delay of 5 timing pulses. This output signal is applied to the recording head N
2 is for driving control. That is, as shown in FIG. 4, the two recording heads N1 and N2 are arranged at intervals of 5 slits due to capping related to nozzle recovery, so that the print timing is set to the head N1. On the other hand, it is necessary to shift the head N2 by 5 slits, that is, 5 pulses.

The pulse signal TP input to the first TP separation circuit TB1 is a 5-pulse signal TD1 for printing digit by digit as shown in FIG. 7 by the TP separation circuit TB1.
To TDn, and a TP separation circuit TD composed of these pulse groups TD1 to TDn is provided with a parallel-serial conversion circuit PSO1 and a strobe signal generation circuit S via a signal line 16 (L6).
Input to OR1. The pulse signal TP output from the 5-bit shift register 5SR with a delay of 5 pulses as described above is supplied to the second TP separation circuit TB2 and the AND gate AST. In the second TP separation circuit TB2, when the printing start, that is, the arrival of the pulse signal TP is detected, the signal ll3 (L13) is supplied to one input end of the AND gate AST as logic "1". As a result, the gate AST is opened, and the pulse signal ASTS as shown in FIG. 7 is output from the output terminal of the parallel-serial conversion circuit PSC2.
And the strobe signal generation circuit SCR2.

Here, the print digit number of one line is stored in advance in the print digit register PR, and the character digit to be printed is counted by the print digit number counter PC1 and the contents of the print character memory CM are counted by the decoder DC1 which receives the output. Select. By the output control of the stage counter 7C, the selected content is output as a 5-bit print data signal from the character generator CG1 (5 × 7 dot matrix) and applied to the parallel-serial conversion circuit PSC1. As described above, when the TP separation signal TB is supplied from the TP separation circuit TB1 to the parallel-serial conversion circuit PSC1, this T
A print data signal for each dot is supplied to the gate SD1 corresponding to one pulse of the P separation signal. Gate SD1 is 5
Since the strobe signal output from the strobe signal generating circuit SCR1 is opened corresponding to the pulse TP separation signal TD, the print data signal is the gate SD1.
Is supplied to the pulse width setting circuit DS1 via. As a result, the pulse width setting circuit DS1 drives the driver PD1 to operate the piezo PZ1, and the parallel-serial conversion circuit PSC1.
Ink droplets are ejected for each signal output of. In this way, printing of horizontal 5 dots in one digit is achieved corresponding to the 5-pulse TP separation signal TD.

On the other hand, MM is a pattern memory, which stores pattern data to be printed by the recording head N2. The contents of the pattern memory MM to be printed out are selected by the decoder DC2 which receives the output counted by the print digit number counter PC2. The selected contents are controlled by the output of the stage counter 7C, and the character generator CG2
A 7-bit pattern data signal is output from (5 × 7 dot matrix) and applied to the parallel-serial conversion circuit PSC2. In the parallel-serial conversion circuit PSC2, as described above,
When the TP separation circuit TD shifted by 5 pulses is supplied from the TP separation circuit TB2 through the gate AST, a pattern data signal for each dot is supplied to the gate SD2 in response to one pulse of the TP separation signal TD. To be done. Gate SD
Since 2 is opened by the strobe signal output from the strobe signal generating circuit SCR2 corresponding to the 7-pulse TP separation signal TD, the pattern data signal is supplied to the pulse width setting circuit DS2 via the gate SD2. ..
As a result, the pulse width setting circuit DS2 causes the driver PD
2 to drive the piezo PZ2, and the parallel-serial conversion circuit P
Ink droplets are ejected each time the signal of SC2 is output to achieve printing of a 7-dot pattern.

The TP separation circuit TB1 and the TP separation circuit TB2 are constructed, for example, as shown in FIG. That is, the delay circuit D, the counters K1 and K2, the JK flip-flops JF1 and JF2, the AND gates G1 to G7, the NAND gates N'1 and N'2, and the inverters I1 and I2 are obtained as shown in the drawing. The operation is shown in a timing chart in FIG.

The above-described printing operation is performed by printing the first 5 dots of the 7 rows of the 5 × 7 dot matrix and the first 7 dots of the first row of the print columns. As described above, the control unit CC outputs the output signal l11 (L11) from the TP separation circuit TB1 when the printing of 5 dots in the first digit of the first stage is completed.
When detected by, the increment signal 17 (L7) is output to increment the print digit number counter PC1 by +1. After that, in the same manner as described above, the print digit register P
The contents of R and the print digit number counter PC1 are matched by the matching circuit CO. This output is led to the control unit CC via the gate AC opened by supplying the signal 14 (L4). When the control unit CC detects the non-coincidence, the TP separation circuit TB detects the character data in the print character memory CM at the digit obtained by adding +1 to the print digit number counter PC1.
Printing is performed by the same operation as described above with the 5-pulse signal TD2 output from 1.

The pattern of 7 dots in the first step printed by the second recording head N2 after a delay of 5 timing pulses has completed the printing of 5 dots for one digit in the first step by the first recording head N1. It has not ended yet at that point. The control unit CC indicates the end of this printing operation by the TP separation circuit T
When detected by the output signal l11 '(L11') from B2, the increment signal l7 '(L7') is output to increment the print digit number counter PC2 by +1. Thereafter, the pattern data in the pattern memory MM at the digit designated by the counter PC2 is transferred to the TP separation circuit T in the same manner as the above-described operation.
Printing is performed with a 7-pulse signal output from B2.

The above-mentioned print digit number counters PC1, P
Since the operation time of the circuit from the step of C2 to the reading of the memories CM and MM and the input to the parallel-serial conversion circuits PSC1 and PSC2 is sufficiently fast with respect to the timing pulse TP, the TP separation circuit TB1, It can be sufficiently executed before the next pulse group is output from TB2.

In this way, in the first recording head N1, the pulse group TD sequentially supplied from the TP separation circuit TB1.
, TDn, 5 dots of each digit in the first row of the first row are selectively printed, and the second print head N2 outputs 1 pulse by the pulse sequentially output from the TP separation circuit TB2. Printing of the pattern every 7 dots in the first row of rows is executed. When the print digit number counter PC1 and the print digit register PR match in printing one line, the control unit CC first outputs the signal 115 (L15) as logic "0" to close the gate SD1. To do. As a result, the driver PD1 is deenergized and the drive of the recording head N1 is stopped. Next, when the end of the pattern printing is detected by the signal l11 '(L11') from the TP separation circuit TB2, the signal l14 (L14) is set to "0" to close the gate SD2 and stop the driving of the recording head N2. Let Thereafter, the signal 18 (L8) is output as a logic "1" for a certain period of time, the driver PFD is driven to execute the paper feed, and the print digit number counters PC1 and P1
C2, the TP separation circuit TB1, the TP separation circuit TB2, and the 5-bit shift register 5SR are cleared, and the stage number counter 7C is incremented by one. At this time, control unit CC
Is a gate AL that is the logical product of the outputs of the stage number counter 7C
It is detected that the number of printing steps is before the seventh step because the output signal l12 (L12) does not become "1".

Further, the control section CC sets the signal IF (L F) to "0" and IB (L B) to "1" to drive the carriage CA in the reverse direction (see FIG. 3B). By driving in the opposite direction, the carriage CA moves to the home position while the speed is controlled. The photodiode L is again provided by the shield plate SB integrated with the carriage CA.
When B and the phototransistor PB are shielded, the phototransistor PB which has been turned on by the photodiode LB is turned off (“0” right arrow “1”). This transistor P
The output signal lTR (LTR) of B is amplified through the amplifier circuit AP2 and is supplied to the control unit CC as the signal lBC (LBC).
Detects that the carriage CA has returned to the home position due to the inversion of this signal lBC (LBC), and the signal l
B (el B) is set to "0" and the driving of the carriage CA in the reverse direction is stopped. Further, the signal SB15 (L15) is set to "1" to open the gate SB1. Further, when the carriage CA is driven in the reverse direction, the signal IF (L F) is “0”.
Is output and the gate AT is closed. Therefore, the timing pulse TP is applied to the TP separation circuits TB1 and TB2.
Is not entered and printing is not performed on return. The driving in the opposite direction and the paper feeding are performed in parallel.

Next, the control section CC detects that the printing of the 7th step of the 5 × 7 dot matrix is not completed by the signal 112 (L12) as described above, and therefore the step number counter 7C indicates. The printing of the next stage that has been performed is further executed. Now, the stage number counter 7C is incremented by 1, the content is changed from 0 to 1, and the character generators CG1 and CG are
In 2, the second stage is instructed. Therefore, as in the case of the first-stage printing, the control unit CC sets the signal IF (L F) to "1" and the signal 1B (L B) to "0" to operate the driver MD to open the 1 input of the gate AT. ..

By driving the carriage CA in the forward direction,
Similarly to the above, the shield plate SB integrated with the carriage CA escapes from between the photodiode LB and the phototransistor PB, and the output signal 1BC (el BC) of the phototransistor PB obtained via the amplifier circuit AP2 changes from "1" to "0". "become. The signal 1BC (LBC) is input to the gate AT via the inverter ITR to open the gate AT. A timing pulse T, which is detected by the detection units LR and PT as the carriage CA moves and is output to the signal line 1TP (LTP) through the amplifier circuit AP1.
P is a TP clock pulse generator CTP and a gate A
It is input to the TP separation circuit TB1 and the 5-bit shift register 5SR via T. In the TP separation circuit TB1, the input timing pulse TP is converted into a TP separation signal TD every 5 pulses.
1 to TDn are separated. Also, a signal l13 which becomes "1" from the start of printing by the TP separation circuit TB2 after a delay of 5 pulses.
The timing signal TP is input to the parallel-serial conversion circuit PSC2 and the strobe signal generation circuit SCR2 through the AND gate opened by (L13). Then, similarly to the above, 1 is output from the print character memory CM and the pattern memory MM selected via the decoders DC1 and DC2 by the output of the print digit number counters PC1 and PC2.
The characters and patterns of the digit are output from the character generators CG1 and CG2 according to the instruction of the stage number counter 7C, but since the contents of the stage number counter 7C are incremented by 1 this time, the 5 dots of the second stage of the 5 × 7 dot matrix are displayed. Data and 7-dot pattern are output. And the TP separation circuit T
The TD signal of 5 pulses from B1 and the print signal via the parallel-serial conversion circuits PSC1 and PSC2 by the timing pulse TP input through the gate AST from the print start point (signal l13 (L13) = "1"). Are output bit by bit. Further, the strobe signal generation circuit SCR1,
By the strobe signal from SCR2, the gate SD
1 and SD2 to pulse width setting circuits DS1 and DS2 to drive the drivers PD1 and PD2 for a fixed time width, and the second stage signal of the 5 × 7 dot matrix of the first digit character and the pattern of 7 dots A signal is output to achieve the "print" and "pattern" in the second stage of the first digit.

Thereafter, in the same manner as the first-stage printing, 5 × 7
Execute the number of print digits for the second stage of the dot matrix. When the control unit CC detects the end of the second-stage printing by the coincidence circuit CO, the signal 115 (L15) is set to "0" and the "printing" is stopped until the end of the "pattern" printing digit. When the end of the "pattern" printing is detected by the '(L11') signal 18 (L8)
The paper feed is executed by the
C1, PC2 and TP separation circuit TB1, TP separation circuit TB2, 5-bit shift register 5SR are cleared and the stage number counter 7C is incremented by one. Control part CC at this time
Is the output signal l12 (L12) of the gate AL as described above.
Is not “1”, it is detected that the printing of the 7th step of the 5 × 7 dot matrix is not completed. Then, the signal 1F (El F) is set to "0" and 1B (El B) is set to "1" to drive the carriage CA in the reverse direction and move the carriage CA while controlling the speed. The light shielding plate SB integrated with the carriage CA blocks the light of the photodiode LB, so that the signal lBC (LBC) from the phototransistor PB is generated.
Changes from "0" to "1", whereby the control unit CC detects that the carriage CA has returned to the home position, sets the signal 1B (El B) to "0", and drives the carriage CA in the reverse direction. To stop. Also, the signal l1
5 (L15) is set to "1", the gate SD1 is opened, and the printing of the next stage indicated by the stage number counter 7C incremented by 1 is executed as described above.

In the same manner, the printing of the third step and the fourth step is executed, and after the printing of the seventh step is completed, the control section CC feeds the paper for one dot line, and the print digit number counter PC
1, PC2 and TP separation circuit TB1, TP separation circuit T
The B2, 5-bit shift register 5SR is cleared and the stage number counter 7C is incremented by 1. Control part CC at this time
Detects that the output signal 112 (L12) from the gate AL is "1", and that the printing of the 7th stage of the 5 × 7 dot matrix is completed. Here, the control unit CC sets the signal IF (L F) to “0” and IB (L B) to “1” to move the carriage CA in the reverse direction similarly to the above, and controls the phototransistor PB of the phototransistor PB obtained through the amplifier circuit AP2. It drives until the output changes from "0" to "1", and returns the carriage CA to the home position. Next, the signal 115 (L15) is set to "1" and the signal 114 (L14) is set to "0" to close the gate SD2 which is an output gate for pattern printing. Here, as described above, until the carriage CA returns to the home position, the driver FD is driven by the signal 1B (el B) and the paper is fed three times. In this way, the printing of one line is completed.

The printing operation is performed when any one of the above specific keys is input to enter the specific print mode and the pattern is printed on one line together with the data. In the normal print mode, the print command is issued. The control unit CC which is in the printing operation state when the signal PO is input is the flip-flop F.
When the set output signal 1SP (LSP) of No. 2 is discriminated and the normal print mode is recognized by this, the signal SD14 is set to (L14) "0" at the start of the printing operation and the gate SD2 is closed. The pattern printing with the ink color is stopped, and only the data with the first ink color is printed by the nozzle N1.

Next, the operation of the speed controller SC for controlling the speed of the carriage CA will be described. FIG. 10 shows an example of the configuration of this speed control unit SC, and FIG. 11 shows its operation timing chart. In FIG. 10, the carriage CA moves along with the scale plate OS by driving the coil, and the timing pulse TP, which is a signal optically detected by the photodiode LE and the phototransistor PT, is taken out through the amplifier circuit AP1 as described above. .. Due to the arrival of this timing pulse TP1, the 4-bit shift register SR
The outputs SQ0, SQ1, SQ2 and SQ3 are sequentially set for each clock CP of the clock pulse generator CPG. Then, an output signal TP1 which is the logical product of the output obtained by inverting the signal of SQ1 by the inverter i0 and the signal of SQ0 is output from the AND gate A0 to the signal line IT1 (L1), and the signal of SQ2 is inverted by the inverter i1. The output signal TP2, which is the logical product of the output of SQ1 and the signal of SQ1, is output from the AND gate A1 to the signal line IT2 (ELT2), and is similarly inverted by the inverter i2 and the signal of SQ3 and S
An output signal TP3, which is the logical product of the signal of Q2 and the signal of Q2, is output to the signal line IT3 (ELT3).

The signals TP1 to TP3 are shown in FIG. The signal TP1 output to the signal line IT1 (ELT1) resets the flip-flop SRF via the OR gate RF, and the signal TP2 output to the signal line IT2 (ELT2).
Is input to the AND gate A4, and the gate A4 is opened for the time of the signal TP2. Also, the signal line IT3 (L3)
The flip-flop FCP is set to the signal TP3 output to the AND gate A3, and the signal TP3 is reset through the inverter only when the signal TP3 is "1" to "0".
After that, the output is set to "1" to cancel the reset, and the clock CP from the signal line lCP (LCP) is input to the counter CCH. The counter CCH, when the signal 12 (L2) becomes "0" for a certain time at the start of printing,
The output from the gate A3 resets the flip-flop FCP, and the output from the gate A5 resets the flip-flop FCP. In addition, the signal TP3 causes lnR (El n
R) is input to the gate A3 as "0", and the counter CC
Continue to reset H. The counter CCH has a signal TP
3 becomes "0" from "1" and flip-flop FCP
To set the signal lnR (LnR) to "1", and then the timing pulse TP becomes "0" to start counting from the time when the reset of the counter CCH is released, and all the outputs Q0 to Q8 are output. Since it is "1", that is, through the NAND gate ND, the NAND gate ND becomes "0" at the end of the count and the flip-flop FGP is reset and the counter CCH is also reset.

The flip-flop SRF is also supplied with the signal l2 supplied via the inverter i3 or the OR gate RF.
It is reset by (L2). That is, one of the inputs of the AND gates AF and AB becomes "1" and is in the operating state. This will be described below with reference to FIG.

When the pulse TP (1) of the input signal TP is generated, the pulse signals TP1, TP2, TP3 are output from the gates A0, A1, A2, respectively, and the pulse signal T
When the flip-flop FCP is set by P3 and the clock CP is input to the counter CCH, the counter CCH
Performs a predetermined count number Q0, Q
Output to 1 to Qn. Then, the output signal CCO of the OR gate ORO becomes "1" up to the count number n,
It is input to one of the AND gates A4. And Gate A
The signal TP is applied to the other signal line IT2 (L2) of No. 4
2 is output. The pulse signal TP is generated by the movement of the carriage CA as described above, and its timing and time width are related to the carriage speed. Therefore, when the carriage speed is slow, that is, when a timing pulse such as TP (1) in FIG. 11 is input, the gate signal A is generated by the generation of the pulse signal TP until the count of the counter CCH is completed.
1 does not output the pulse signal TP2 and the gate A4 is closed, and the flip-flop SRF remains reset through the OR gate RF with the signal TP1 output at a timing earlier than the signal TP2. Has become. This does not affect the AND gates AF and AB, so the carriage CA integrated with the motor coil C
Keep driving.

Similar to the case of the pulse TP (1), the counter output CC is also generated at the time of the pulses TP (2), (3) and (4).
The logical product of O and the signal TP2 is not taken by the AND gate A4, and the drive of the motor coil C does not change. However, as the driving continues, the moving speed of the carriage CA gradually increases and the pulse interval of the timing pulse becomes narrower. Then, when the pulse TP (5) is output, the output signal CCO from the counter CCH via the gate ORO
The logical product of (4) and the pulse TP2 (5) of the signal TP2 is taken by the gate A4, and the output signal A40 becomes "1", and the flip-flop SRF is set.

When the flip-flop SRF is set, the output bar Q (inversion Q) changes from "1" to "0", the AND gates AF and AB are closed, the signals FM and FB are set to "0", and the driver MD is not driven. Then, the driving of the coil C is stopped. Even if the driving of the coil C is stopped, the carriage CA moves due to inertia, but its speed becomes slow due to friction. Next, the pulse TP3 of the signal TP3
The counter CCH is reset by the signal bar TP3 (5) (inversion TP (5)) inverted by the inverter by (5), and the flip-flop FCP is set by the trailing edge of the pulse TP3 (5) to set the counter CCH. Will start counting again. Then, the flip-flop SRF is reset via the gate RF by the pulse TP1 (6) generated by the pulse TP (6) of the next signal TP, the output bar Q thereof is set to "1", the gates AF and AB are opened, and the gate is again opened. Drive the coil C.

During the period from the pulse TP2 (5) of the signal TP2 to the pulse TP1 (6) of the signal TP1, the coil drive is stopped and the carriage speed is reduced, but the pulse TP (6)
As the timing pulse TP (5) is reached, the output signal CCO (5) from the counter CCH and the pulse TP2 are not reached because the speed has not yet fallen at the time of occurrence of.
The logical product with (6) is taken by the gate A4, the flip-flop SRF is set again, the gates AF and AB are closed, and the pulse TP1 output by the generation of the pulse TP (7) is output.
Coil C drive is stopped until (7) comes. At this time, similarly to the above, the counter CCH is reset by the inverted output bar TP3 (6), the flip-flop FCP is set by the trailing edge of the pulse TP3 (6), and the counter CCH starts recounting.

Similarly, the next timing pulse TP
The flip-flop SRF is reset via the gate RF by the signal of the pulse TP1 (7) of the signal TP1 according to (7), the gates AF and AB are opened, and the coil C is driven again.

Similarly, signal TP2 and counter output CC
The coil C is driven by the logical product of O and pulse TP
In (7) and (8), the drive of the coil C is not stopped, and in the pulse TP (9), the drive of the coil C is stopped similarly to the pulse TP (5) and (6), and the clock pulse CP of the counter CCH is changed. The speed control of the carriage CA in both directions based on the count number n is executed.

As described above, according to the embodiment of the present invention, in the specific print mode, a pattern is printed on the background (background) of the data to be printed with an ink color different from the ink color of the data, It was made possible to clearly distinguish it from other print data printed by the print mode. Therefore, if the operator wants to know the print output of the calculation result in the specified print mode and the other data is printed in the normal print mode, the data such as the desired calculation result can be seen at a glance from the printed data. It is possible to contribute to improving the work efficiency of the operator, such as being able to know.

In the above description, the pattern to be printed in the specific print mode is not particularly described, but the printed data is easy to see and can be clearly distinguished from the normal print mode. It is preferable that it is

Further, the above pattern may be printed only on the background portion where the print data is not printed, without being overwritten on the print data such as characters. This can be easily done by using a NAND gate or the like to blank out the character portion, but there is an advantage that color mixture is prevented and the color becomes clear.

Further, the case where the specific key TKEY as the specific print mode instructing means is limited to the # and T keys has been described, but it is not limited to this.

[0048]

As described above in detail, according to the present invention, a recording means having a first recording section for recording in a first color and a second recording section for recording in a second color, a first recording section A storage unit having a first storage unit for storing dot pattern data to be recorded by the recording unit and a second storage unit for storing the dot pattern to be recorded by the second recording unit, and recording by the first recording unit It has become possible to provide a recording apparatus including a control unit that controls the recording unit and the storage unit so that the background pattern for the power dot pattern is recorded by the second recording unit.

As described in detail above, according to the present invention, it is possible to record a plurality of colors, and to record a background (background) for the data recorded in the first color in the second color. It is now possible to provide.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a printer to which the present invention is applied.

FIG. 2 is an internal configuration diagram of a carriage CA of FIG.

3A is an enlarged front view showing the scale plate OS of FIG. 1 in an enlarged manner, and FIG. 3B is a signal waveform of each of pulse signals TP and TR generated with the movement of the carriage CA of FIG. It is a figure.

FIG. 4 is an explanatory diagram for explaining the positional relationship between the first recording head N1 and the second recording head N2 of FIG.

FIG. 5 is a plan view showing an example of a keyboard of a printer to which the invention is applied.

FIG. 6 is a block diagram showing an example of a control circuit that controls a printing operation of a printer to which the present invention is applied.

7 is a timing chart showing the overall operation timing of the control circuit of FIG.

8 is a block diagram showing an example of a TP separation circuit TB1 or TB2 shown in FIG.

9 is a timing chart showing the operation timing of the TP separation circuit TB1 or TB2 of FIG.

10 is a block diagram showing an example of a speed controller SC shown in FIG.

11 is a timing chart showing an operation timing chart of the speed control section SC shown in FIG.

[Explanation of symbols]

 N1, N2 inkjet nozzle (recording head) CA carriage PM permanent magnet Y1 magnetic plate Y2 magnetic sliding shaft CB coil bobbin C coil OS slit plate (scale plate) ST, ST1, ST2 sub tank PT phototransistor (light emitting element) PTT terminal FL flexible Wiring board LB Photodiode PB Phototransistor SB Shielding board FL1, FL2 terminal C1, C2 terminal PZ1, PZ2 Piezo LE Photodiode LET terminal P Holding plate T1, T2 Ink supply tube MT1, MT2 Main tank SS slit QS Receiving slit TP Timing pulse SP paper Feed pulse motor PL Platen KP Cap D1, D2 Collision buffer damper G1, G2 Gear PP Printing paper TKEY Specific key F1, F2 Flip-flop CC Control 7C Step counter SC Speed controller AR, AC, AT, SD1, SD2 Gate PC1, PC2 Print digit number counter TB1, TB2 TP separation circuit 5SR 5 bit shift register MD, PFD, PD1, PD2 driver PR PR Print digit number Storage register CO coincidence circuit ITR inverter AP1 amplification circuit CTP TP clock pulse generator PSC1, PSC2 parallel-serial conversion circuit CG1, CG2 character generator SCR1, SCR2 strobe signal generation circuit DS1, DS2 pulse width setting circuit CM print character memory MM pattern memory DC1 , DC2 decoder

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 20, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Title of invention

[Correction method] Change

[Correction content]

Image processing method

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction content]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing method.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

2. Description of the Related Art In a conventional image processing method, as a method of synthesizing a character code and a background portion, for example, a method of synthesizing with an OR gate is known.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

[0003]

However, in the above-mentioned conventional example, since the character code and the background portion are combined by the OR gate, when the character code and the background portion are printed in different colors, As a result of color mixing, an image is printed in a color different from the color originally intended to be printed, which causes a problem of deterioration in image quality. The present invention aims to solve such problems.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

In order to achieve the above object, the present invention is an image processing method for synthesizing and outputting character data expanded from a character code and a background pattern for the character data, In order to prevent color mixture between the character data and the background pattern, the area corresponding to the character data is outlined and the background pattern is combined.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction content]

[0005]

In the present invention, the area corresponding to the character data is blanked out and combined with the background pattern.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Name of item to be corrected] 0019

[Correction method] Change

[Correction content]

As the carriage CA moves in the forward direction, the shield plate SB integrated with the carriage CA moves from between the photodiode LB and the phototransistor PB, and finally the photodiode LB and the phototransistor P.
The area between B is not blocked, and the phototransistor PB is turned on ("1" right arrow "0"). When the phototransistor PB is turned on, the signal 1BC (LBC) becomes "0" and is input to the gate AT via the inverter ITR. Further, the photodiode LE and the phototransistor PT as a detection unit mounted on the carriage CA move the slit plate OS along with the movement of the carriage CA, and the slit SS detection signal, that is, the timing pulse TP is sent to the amplifier circuit AP1 via the signal line FT. Is entered. The timing pulse TP amplified by the amplifier circuit AP1 is passed through the signal line 1TP (LTP) to the gate AT and the speed control unit S.
C and TP clock pulse generator CTP. Here, as described above, the signals 1F (L F) and 1BC (L BC) are supplied to the other input terminal of the gate AT. When the contents of the digit number counter PC1 and the print digit number register PR do not match, the signal IF (L F) is supplied as "1". Therefore, as described above, the carriage C
When the shield plate SB integrated with A comes out between the photodiode LB and the phototransistor PB, the signal l
When BC (El BC) becomes “1”, gate A
T is opened, and the timing pulse TP is supplied to the first TB separation circuit TB1 and the 5-bit shift register 5SR via the gate AT.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction content]

The TP separation circuit TB1 and the TP separation circuit TB2 are constructed, for example, as shown in FIG. That is, the delay circuit D, the counters K1 and K2, the JK flip-flops JF1 and JF2, the AND gates G1 to G7, the NAND gates N'1 and N'2, and the inverters I1 and I2 are obtained as shown in the drawing. The operation is shown as a timing chart in FIG.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0046

[Correction method] Change

[Correction content]

Further, the pattern may not be overwritten on the print data such as characters, but may be printed only on the background portion where the print data is not printed. This can be easily done by using a NAND gate or the like to blank out the character portion, but there is an advantage that color mixture is prevented and the color becomes clear.

[Procedure Amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0048

[Correction method] Change

[Correction content]

[0048]

According to the present invention, since the area corresponding to the character data is combined with the white background pattern, even if the character area and the background area are printed in different colors, no color mixture occurs. Therefore, deterioration of image quality can be prevented.

[Procedure Amendment 12]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 11

[Correction method] Change

[Correction content]

11 is a timing chart showing the operation timing of the speed control unit SC shown in FIG.

[Procedure Amendment 13]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

[Procedure Amendment 14]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5]

Claims (1)

Claims: What is claimed is: 1. A first recording section and a second recording section for recording in a first color.
Recording means having a second recording portion for recording with the above color, a first storage portion for storing dot pattern data to be recorded by the first recording portion, and a dot pattern for recording with the second recording portion A storage unit having a second storage unit for controlling the recording unit and the storage unit to record a background pattern for the dot pattern to be recorded by the first recording unit by the second recording unit. A recording apparatus comprising means.