CN1178739A - Printer - Google Patents
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- CN1178739A CN1178739A CN 97121458 CN97121458A CN1178739A CN 1178739 A CN1178739 A CN 1178739A CN 97121458 CN97121458 CN 97121458 CN 97121458 A CN97121458 A CN 97121458A CN 1178739 A CN1178739 A CN 1178739A
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Abstract
In a print head, a ratio K/N is an irreducible fraction with the proviso that N is the number of nozzles, K is the interval of nozzles. Line scanning printing of an image is intermittently performed at a Scan and paper feeding by lines of nozzle number is performed in the sub-scanning direction by a unit of K. The above operation is repeated, then the printing of the image in the resolution more precise than the actual interval of nozzles in the sub-scanning direction is performed. A setting value related to K is taken as a parameter and an interleave operation is executed based on the setting value. To provide a printer capable of printing images having plural resolutions in the sub-scanning direction by one head.
Description
The present invention relates to a kind of printhead scanning-type printer such as ink-jet printer.Specifically, the present invention relates to a kind ofly can utilize same printhead to carry out the printer that multiple mixing is interleaved and can print with various different resolutions.
A kind of ink-jet printer is applicable to according to control signal and sprays ink droplet and ink droplet is sprayed on to be recorded as (being designated hereinafter simply as " record-paper ") on paper or the film from nozzle.In recent years, such printer can reduce cost because of it and minification is able to popular.
The method of spraying ink droplet from nozzle is classified as the method for printing ink being exerted pressure by the piezoelectric element distortion and the gasification process by printing ink and the pressure in bubbles that utilization produced in the heater element heated nozzle usually.
Meanwhile, the e-file preparation that is commonly called " desktop publishing " is implemented in office effectively.People's requirement all the more not only can printable character or figure, and natural image such as photo that can printing color.
In such application, also require to print with various different resolutions with a printer.
In other words, by treating that print What (character, natural image etc.) or printing purpose (test print or regular printing) or record-paper type (plain paper, recycled writing paper, specific for paper, OHP paper etc.) decide required resolution ratio.
By the way, as the method that satisfies above-mentioned requirements, people have proposed a kind of a kind of printhead and method to print than the higher resolution ratio of the determined resolution ratio of jetting-nozzle space of typing head of adopting.
Known first method is to comprise the feeding of resolution unit spacing and two kinds of second scanning feeds of the single printhead length of actual feeding.
The second method that people know is to carry out interlacing control on sub scanning direction.
First method needs two kinds of second scanning feeds, and this makes required feeding control of line printing and Data Control become complicated.
In addition, because same printhead is skipped many row ground recording occurring continuously on sub scanning direction, so the jet performance difference between each nozzle has become obviously, this causes so-called " striped " easily and picture quality is produced unfavorable influence.
In the second approach, same printhead carries out about two kinds of interlacing second scanning feeds usually, resolution ratio is restricted to about two kinds, and carries out the proprietary feeding control and the required Data Control of line printing of the required interlacing scan operation of each resolution ratio independently of one another.
Thereby predetermined resolution immobilizes, so shortcoming is to change resolution ratio.
The invention solves the problems referred to above.The purpose of this invention is to provide the printer that the enough same class printheads of a kind of energy print with multiple resolution ratio on sub scanning direction.
For achieving the above object, design a kind of printer according to the present invention, its along the both direction that is perpendicular to one another substantially when carrying out main scanning and subscan between to be recorded and the printing head support part, this printer forms document image according to picture signal, the nozzle that one group of number is N is being arranged on the printhead with resolution unit spacing K each interval on the sub scanning direction, K/N here is a simple fraction, wherein the K value is the arbitrary integer greater than 1, getting the setting value relevant with the K value is parameter, carries out the interlacing scan operation by carry out interleaved signal processing mode according to setting value.
In the present invention, just can on sub scanning direction, print, can on best sub scanning direction and in the common printing, select resolution ratio simultaneously with multiple resolution ratio with a printhead.Only just can in same interlacing scan processing procedure, realize each interlacing scan operation in the setting value of giving input on the sub scanning direction by a definite expression record-paper.
Figure 1A and 1B are the views of operation that is used to illustrate the embodiment of a printer of the present invention, and wherein Figure 1A represents printhead at first print position of printing among the embodiment, and Figure 1B represents that printhead is at second print position of printing among the embodiment;
Fig. 2 represents to have the printer shown in Figure 1 of the print head structure that gears to actual circumstances;
Fig. 3 A and 3B are the structure charts of expression printhead embodiment;
Fig. 4 A and 4B are the oscillograms that is used for print head operation shown in Fig. 3 A and the 3B;
Fig. 5 is the schematic diagram that the system architecture of printer of the present invention is implemented in expression;
Fig. 6 is the circuit block diagram that is illustrated in the signal processing in the computer relevant with the present invention;
Fig. 7 is the block diagram that is illustrated in the signal processing in the printer of the present invention;
Fig. 8 is the perspective view of expression print head structure;
Fig. 9 is the flow chart of expression printer operation;
Figure 10 is the flow chart of expression printer operation;
Figure 11 is the flow chart of expression printer operation;
Figure 12 is the flow chart of expression printer operation;
Figure 13 is the flow chart that the expression record-paper feeds processing procedure.
Below will the present invention be described with reference to the accompanying drawings in the mode of preferred embodiment.
Figure 1A and 1B are the operating instruction figure of printhead used in printer of the present invention, wherein Figure 1A represents when printhead print position during with first resolution printing on sub scanning direction, Figure 1B represent when printhead at the print position of sub scanning direction during with second resolution printing, in Figure 1A and 1B, used same printhead.
For ease of understanding, show the injection original position of nozzle in the upper right side of figure.
The used printhead 101 of Figure 1A and 1B has many nozzles: N=3, the about 0.3387mm of injector spacing (being equivalent to 75dpi).
In first shown in Figure 1A prints embodiment, be to print under the situation of 150dpi at the dot spacing on main scanning and the sub scanning direction.As nozzle number N=3 and during injector spacing K=2 (thereby K/N=2/3, i.e. simple fraction) and make dot spacing on the main scanning direction be 150dpi driving constantly, printhead 101 begins to scan 1.
Printhead 101 carries out interlacing (every 3 row) scanning and printing in scanning 1.
Then, carry out paper feed according to K along sub scanning direction, wherein K is the unit quantity (3 row) of nozzle (N) * K.
For ease of understanding figure, the original position of scanning and printing is by 1 expression of the point on the main scanning direction, but has in fact vertically moved this position.
So, the paper feeding of carrying out according to standard interlacing scan operation is always according to the value of expression nozzle number and interlacing is carried out.
By carrying out said process repeatedly, can be to print less than the resolution ratio on the sub scanning direction of actual nozzle spacing.
Because printing is to be implemented by the nozzle of different adjacent lines, so if the print point of each nozzle is different because of the jet performance difference of each nozzle, then when when many row are observed, this difference is unconspicuous to the effect that improves picture quality.
In second embodiment shown in Figure 1B, be to print under the situation of 300dpi at the dot spacing on main scanning and the sub scanning direction, wherein the nozzle number N=3 of printhead 101 and injector spacing K=4 (so producing a simple fraction as described above), and drive printhead 101 constantly in the driving that makes the dot spacing=300dpi on the main scanning direction.Under the situation of nozzle number=3, on sub scanning direction according to unit quantity K with the form skip triplex row.
In the printing embodiment shown in Figure 1A and the 1B, produced the some footpath that is adapted to dot spacing (150dpi or 300dpi) most owing to having controlled each nozzle type of drive, so do not worry the China ink amount too much.In addition, also can under being the situation of 600dpi, the dot spacing on main scanning and the sub scanning direction print (although not shown), wherein nozzle number N=3 and injector spacing K=8, i.e. a simple fraction K/N=8/3.
Although the double-space operation is a kind of by print density that increases main scanning direction and the method that improves the resolution ratio of sub scanning direction simultaneously, also can improve the resolution ratio of major and minor scanning direction simultaneously.
In the embodiment shown in Figure 1A and the 1B, with describe above-mentioned double-space operation with the printhead of three nozzles.Fig. 2 shows the embodiment of a printer prints header structure that more gears to actual circumstances.
That is to say that figure 2 illustrates that have 15 a nozzles and resolution ratio is the embodiment of 300dpi, 600dpi.
For ease of understanding, also to represent each scanning starting position along a point in the scanning process of main scanning direction at every turn, the position of nozzle N1 is represented by solid dot in Fig. 2.
In this embodiment, on sub scanning direction, carry out the interlacing scan operation with same printhead with 300dpi and 600dpi.
That is, K1/N=4/15, K2/N=8/15, they respectively produce a simple fraction.
Record-paper all is fed 15 row when each scanning, wherein K is a unit quantity, and the solid dot in each solid dot in the scanning 1 and the scanning 2 is leftward among the side figure and all moved 15 row among the right-hand side figure.
Referring to Fig. 3 and Fig. 4 the embodiment that the present invention is used biliquid mixed type ink-jet printer (carrier ink jet type) is described.
Modern print heads that the inventor had proposed a kind of (being called as the carrier ink-jet system), it adopts mixed liquor to carry out middle tone and prints, described mixed liquor by according to type information measure a kind of dilution (or printing ink) and mix simultaneously and prepare (the flat 7-254250 of Japanese patent application, the applying date is September 29 nineteen ninety-five) with quantitative printing ink (or dilution).
That is, Fig. 3 A and 3B and Fig. 4 A and 4B show oscillogram and the structure chart that is used for this modern print heads operation.
Fig. 3 A is an overall diagram, and Fig. 3 B is the zoomed-in view of main part.
In these two figure, nozzle plate 301 has metering spout 302 and jet nozzle 303.
Spout 302,303 communicates with ink feeder 304 and dilution input hole 305 respectively.
In addition, measuring tank 306 and spray tank 307 are opened in input hole 304,305 rears respectively.
Also be provided with a vibration plate 308 in that side relative with groove 306,307.
So in such device, cause extensible member 309 for respectively the metering electricity consumption and spray electricity consumption to cause extensible member 310 and apply driving signal shown in Fig. 4 A and 4B.
That is, Fig. 4 A represents to impose on the example that the injection electricity consumption causes the driving signal of extensible member 310.Produce large deformation owing to make the injection electricity consumption cause extensible member 310, so the dilution in the dilution input hole 305 is sprayed from jet nozzle 303 at moment a.
In addition, constantly
bAnd constantly
c, electrostriction part 310 is out of shape in the mode opposite with spray regime, and dilution is charged in the dilution input hole 305 from spray tank 307 once more.
Fig. 4 B shows and passes to the example that the metering electricity consumption causes the driving signal of extensible member 309, wherein exists
d-
eDuring this time printing ink is extruded from metering spout 302, the printing ink 311 that is extruded rests on jet nozzle 303 the place aheads.Then, when ejection dilution from jet nozzle 303, will dilute drop 312 according to printing ink 311 concentration and mix with printing ink.
So in this device, for example when the electromotive force of injection electrostriction part 310 when 0 volt changes to 20 volts, just spray (a) every 1 millisecond.Because electrostriction part 310 is out of shape because of potential change, so the ejection dilution.
On the other hand, for example constantly
dMake the electromotive force of electrostriction part 309 become 10 volts from 0 volt.
So, under the electromotive force of electrostriction part 309 situation about changing like this, be not ink jet, but printing ink extruded from the top of spout 302.
In this device, also according to the time
d-
eLength and potential change scope are controlled the quantity of ink of extruding.This can control and be trapped in printing ink 311 concentration before the jet 303 and control ink density in the liquid droplets 312 selectively.
That is, can be according to resembling-10 volts of 150 milliseconds shown in the figure or 50 person of outstanding talent's second-10 volts of such type informations and passing through the control time
d-
eLength and potential change scope and carry out selectable middle tone and print.
The signal processing of the computer relevant with the present invention is then described referring to Fig. 5 and Fig. 6.
Fig. 5 shows a computer 90, is attached to the high capacity memory 80 of this computer (hard disk, CD-ROM etc.), a printer 100 and a printhead 101.
In Fig. 6, computer 90 is treated the data that mimeograph documents comprised of being defeated by printer 100 and is carried out signal processing (will describe later on) and carry the print data that at every turn scans required data group as printer port of printer to printer 100, and printer 100 printings simultaneously are down by computer 90 print datas that send, that scan at every turn.
As the interface (I/F) between computer 90 and the printer 100, can adopt to resemble the such parallel interface I/F of IEEEStd1284 (being commonly called double end Centronics), SCSI-2 or resemble the such serial line interface I/F of RS-232C, RS-422A.
In this embodiment, owing to there are many transmission data, adopt parallel interface I/F.
In the digital signal processing of computer 90, by every the R that the print image file produces that treats that for example is stored among hard disk or the CD-ROM, G, the view data of B is converted into the YMC data of green grass or young crops (C), pinkish red (M) and yellow (Y) by color separation processing 21.
In undercolour removal 22, (be designated hereinafter simply as UCR), from Y, M, C data, take out black elements (BK) to produce new Y, M, C, BK data.
Revise in 23 in color correct/γ, carry out color correct/contrast correction according to the needs of the print performance of printer.
In definition correction 24, resemble image definition correction (large tracts of land increases the weight of color, MTF correction, fade-proof) as required or eliminate the such correction of interference (homochromatic, background color are eliminated).
Handle in 25 at many-valued dither, according to site exponent number in the maximum of carrier ink-jet printer the image correction data are carried out multistage frequency modulation and shake processing to produce the part that to reproduce.
Handle in 26 in bar section (banding), reset the order (will describe the bar section later on handles) of going the unit and converting thereof into the printhead scan operation and the interlacing subscan operation that in actual printhead scanning, are used to the machine that prints 100.
In this processing, the scanning element of 90 pairs of printheads 101 of computer produces printer data and when printer 100 is being carried out printing these data is passed to printer 100.
Handle in 26 in the bar section, reset the order of going the unit and converting thereof into the printhead scan operation and the interlacing subscan operation that in actual printhead scanning, are used to the machine that prints 100.
In this embodiment, the print resolution of sub scanning direction has just been determined by print conditions (used record-paper type, print image grade etc.) before printing.
Specifically, optimum resolution and K value are selected in possible printer resolution, as 150dpi (K=2), 300dpi (K=4), 600dpi (K=8).
For example, be used for being taken as 600dpi (K=8), or the resolution ratio and the K value that are used for the record grade on plain paper are taken as 300dpi (K=4) in specific resolution ratio and K value with the hi-vision grade on the paper.
Then, when beginning to print, computer 90 will represent that the instruction of the resolution ratio of the sub scanning direction so determined passes to printer as printer control instruction or PDL (PostScript).
Handle in 26 at frequency band, rearrangement is become the order that in actual printhead scanning, is adopted according to interlacing scan operation by the decision of the resolution ratio on the determined sub scanning direction.
Fig. 7 is the block diagram that a printer example structure of the present invention is implemented in expression.
In Fig. 7, print data that the main frame (not shown) sends or print control data process resemble double end Centronics (IEEE Std1284), SCSI (walking abreast), the such Data Input Interface (I/F) 1 of RS-232C, RS-422A (serial) is delivered to innernal CPU system bus 2.
CPU3, ROM4, RAM5 and carry out the used mechanizing circuit of following printing and link to each other with cpu system bus 2.
In this device, the type information signal that system bus 2 is sent here is passed to D/A conversion portion 6 and is converted into the stochastic simulation signal, and the analog signal that converts to is passed to drive part 7.
In this drive part 7, by the modulation time as shown in Figure 4
d-
eLength and electromotive force transformation range and produced modulation signal flow to printhead modulating part 8 (electrostriction part 309 shown in Figure 3) with modulation signal.
In addition, the print control signal sent here of system bus 2 is fed to time control section 9.
Then, the D/A transition trigger signal that time control section 9 sends is fed to D/A conversion portion 6, also produced the hydrojet shown in Fig. 4 A and driven signal, hydrojet drives signal and also is fed to printhead spout part 11 (electrostriction part 310 shown in Figure 3) through drive part 10.
Though accompanying drawing only shows a nozzle that is used for a printhead, under the situation of a plurality of nozzles that drive many printheads, according to number of nozzle D/A conversion portion 6-printhead conversion portion 8, drive part 10 and printhead spout part 11 are set respectively.
The motor-driven triggering signal that time control section 9 sends also is passed to Electric Machine Control part 12.
In addition, the motor-driven control signal sent here of system bus 2 is passed to Electric Machine Control part 12.
The motor drive signal of being sent by Electric Machine Control part 12 is fed to paper feed and printhead feeding motor 14 through motor-driven part 13.
The position detection signal that printhead position sensor 15 is sent also is passed to time control section 9.
The temperature-sensitive signal that is sent by near 16 (not shown) of the temperature sensor the print-head nozzle is passed to system bus 2 through sensor interface 17.
For example, the signal that sends of sensor printhead is carried out the correction adjustment in the reciprocator or resemble before document (the flat 7-254250 of Japanese patent application) control according to variations in temperature described.
In addition, Fig. 8 is used to illustrate the topology view of implementing printer arrangement of the present invention.
In Fig. 8, record-paper 210 is wrapped on the outer peripheral face of plate cylinder 211 and is transmitted, and paper feed motor 212 rotates by the mode of pulley 213,214 and conveyer belt 215 and drives plate cylinder 211.
In addition, by printhead feed mechanism 217 printhead 216 is fixed on the feed screw 218 of the outer peripheral face that is parallel to plate cylinder 211.
Printhead moves by printhead feed mechanism 217 with being parallel to plate cylinder 211 outer peripheral faces.
In addition, printhead feed mechanism 217 has a finger 201, and the position sensor 202 that is installed in the mobile route of printhead feed mechanism 217 is surveyed described finger 201 so that detect the scanning position of printhead 216.
In this device, transmit as be used for generation the control signal 204 of printhead driving, printhead feeding control and paper feed control by the type information 203 that the main frame (not shown) sends.
Then, various signals flowed to printhead 216, printhead feed mechanism 217 and paper feed motor 212 respectively in case according to type information print, the transmission of record-paper and the scanning of printhead.
To the operation of printer be described according to Fig. 9-flow chart shown in Figure 12 subsequently.
When turning on the power switch ON and start working, starting drive in step [111].
Then, judge in step [112] whether machine has received the beginning processing instruction that is used for printer processes that computer sends,, then return step [112] and be in idle condition if do not receive this instruction (N).
When machine has received beginning processing instruction (Y), begin to print.In step [113], in printer, carry out various settings according to the every setting command in the printer control instruction that sends by computer.
The instruction process of then representing the resolution ratio of sub scanning direction of the present invention.
Then feeding record-paper (recording medium) and judge in step [115] whether record-paper is sent to top of form and has finished the paper feed operation in step [114].If do not finish (N), then flow process is got back to step [114].If finished paper feed, then flow process proceeds to step [116].
In step [116], receive print data and these data are write in the reception memorizer.
In step [117], the print data of receiving is write the swept memory of each printhead from reception memorizer.
In step [118], judge the instruction of on the subscan position, whether having received expression record start position.If received (Y), then flow process proceeds to step [119], along sub scanning direction record-paper is delivered to the record start position.If do not receive (N), then flow process proceeds to step [120].
Judge whether in step [120] to receive whether print data that scanning 1 is required and the data of receiving are write the swept memory of each printhead fully.When writing (Y) fully, flow process proceeds to step [121].On the contrary, if do not write (N) fully, then flow process is returned step [116].
Under printing, printhead is used to scan the print data of 1 swept memory in step [121].
In step [122], make printhead carry out reset operation and return initial position (in one-sided scanning and printing).
In step [123], judged whether to receive the instruction of representing continuous double-space operation.If received (Y), then flow process proceeds to step [124].If do not receive, then flow process skips to [125].
In step [124], according to the resolution ratio on predetermined sub scanning direction with form skip one segment distance (interlacing feeding control).
Judged whether to receive the required print data of time one scan in step [125], if received (Y), then flow process is returned step [124].If do not receive, then in step [126], judged whether to receive the instruction of expression record-paper original position on sub scanning direction.If received (Y), then return step [119]; If do not receive (N), then flow process proceeds to step [128].
In step [128], judge whether to have received and the relevant operational order of end print procedure.If do not receive (N), then return step [123].If received (Y), then flow process proceeds to step [129].
In step [129], discharge record-paper.Whether the discharge of judging record-paper in step [130] finishes, if row's paper finishes (Y), then starts and prints end operation, and flow process is returned idle condition.If do not finish (N), then flow process is returned step [129].
Subsequently, CPU in the printer is described to the control operation of interlacing second scanning feed in the mode of flow chart shown in Figure 13.
The flow chart of Figure 13 shows the feeding operation of each interlacing subscan.
Before beginning printing, following second scanning feed unit quantity and second scanning feed parameter for example in RAM5, have been set.
Second scanning feed unit ... 600dpi
Second scanning feed parameter ... 1...K=8
2...K＝4
4...K＝2
8...K＝1
Number of nozzle: 15 nozzles
Then, the second scanning feed number is determined according to second scanning feed parameter and number of nozzle.
The second scanning feed number
(=second scanning feed parameter * nozzle number)
15(＝1×15).....K＝8
30(＝2×15).....K＝4
60(＝4×15).....K＝2
120(＝8×15)....K＝1
In step [151], begin each interlacing second scanning feed, in the second scanning feed counter with second scanning feed number input CPU in step [152], the second scanning feed of opening entry paper in step [153], the second scanning feed counter successively decreases with each scanning feeding unit quantity in step [154].
≤ 0 whether the value of judging the second scanning feed counter in step [155].If (Y), then finish second scanning feed in step [156].If not, then flow process is returned step [154].
Below will refer again to Fig. 6 and 7 and describe the embodiment that the present invention is used drop on demand ink jet printing.
When by with the piezoelectric element being the distortion of the electrostriction part of typical case representative when producing ink-jet power or under the situation of the bubble jet ink droplet that the heater element heating is produced, the difference of drop on demand ink jet printing only is the jet drive part in printhead and the printhead circuitry part shown in Figure 7.Because except printhead ejected the bi-component ink droplet, other operation was identical, so will save following description.
Computer shown in Figure 6 difference in overall signal handling process of the present invention only is: many-valued dither handle many-valued dither in 25 handle become the two-value dither handle 25 ' and the two-value dither handle that processing after 25 ' becomes 1 bit data/one elementary area data/monochromatic data and other processing is constant.
Then carrying out the optical color processing in the type printer as required.
Concerning the register system of printer, the present invention can be used for various ink-jet printers as making the printing ink gasification at the heater element adstante febre and ejecting the such carrier ink-jet printer of printing ink, binaryzation ink-jet printer.Except that the carrier ink-jet printer, the present invention also can be used for the ink-jet printer in modulation point footpath and the ink-jet printer of modulation density.
Claims (8)
1. a printer forms document image according to picture signal along vertical substantially each other both direction when treating to carry out main scanning and subscan between printout and the printing head support part, wherein arrange that with resolution unit spacing K one group of number is the nozzle of N along sub scanning direction, K/N is a simple fraction than here, it is characterized in that: the K value is 1 or greater than 1 integer, many values are arranged, getting the setting value relevant with the K value is parameter, by the single processing procedure enforcement interlacing scan operation of carrying out the interlacing scan operation according to this setting value.
2. printer as claimed in claim 1 is characterized in that: the setting value of interlacing scan operation is to be determined by the record-paper type and the print image grade of print conditions when printing.
3. printer as claimed in claim 1 is characterized in that: emitted dose is to set according to the size of the point on the record-paper, and consecutive points are overlapped.
4. printer as claimed in claim 1 is characterized in that: printhead is to control according to the resolution ratio on the sub scanning direction in the interlacing scan operation in the driving speed on the main scanning direction, and print resolution is relevant with main scanning and sub scanning direction.
5. printer as claimed in claim 1 is characterized in that: printhead is arranged to a plurality of printheads with the record color and is arranged on the main scanning direction, thereby realizes colour print.
6. printer as claimed in claim 1, it is characterized in that: described printhead is the printhead of biliquid mixed type printer, this printer adopts by according to type information, measures a kind of dilution or printing ink and mixes with another scheduled volume wherein and the mixed liquor for preparing and carry out the middle tone printing.
7. printer as claimed in claim 1 is characterized in that: described printhead is a kind of printhead of bubble type ink-jet printer.
8. Method of printing, form document image according to picture signal when in the middle for the treatment of printout and printing head support part, carrying out main scanning and subscan along vertical substantially each other both direction, wherein arrange that with resolution unit spacing K one group of number is the nozzle of N along sub scanning direction, K/N is a simple fraction than here, it is characterized in that: the K value is the arbitrary integer more than or equal to 1, getting the setting value relevant with the K value is parameter, carries out the interlacing scan operation by single processing procedure of carrying out interlacing scan operation according to this setting value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97121458 CN1178739A (en) | 1996-09-27 | 1997-09-26 | Printer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP256025/96 | 1996-09-27 | ||
| CN 97121458 CN1178739A (en) | 1996-09-27 | 1997-09-26 | Printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1178739A true CN1178739A (en) | 1998-04-15 |
Family
ID=5176292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97121458 Pending CN1178739A (en) | 1996-09-27 | 1997-09-26 | Printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1178739A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355507C (en) * | 2001-07-04 | 2007-12-19 | 精工爱普生株式会社 | Ink jet head scanning method and apparatus |
| CN101254695B (en) * | 2007-01-30 | 2011-04-06 | 兄弟工业株式会社 | Ink-jet recording apparatus |
| CN101505355B (en) * | 2005-09-14 | 2011-12-21 | 株式会社东芝 | Image communication apparatus and image communication control method |
| CN112157991A (en) * | 2020-10-27 | 2021-01-01 | 恒银金融科技股份有限公司 | Method and circuit for doubling font resolution without changing printing nozzle |
-
1997
- 1997-09-26 CN CN 97121458 patent/CN1178739A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355507C (en) * | 2001-07-04 | 2007-12-19 | 精工爱普生株式会社 | Ink jet head scanning method and apparatus |
| CN101505355B (en) * | 2005-09-14 | 2011-12-21 | 株式会社东芝 | Image communication apparatus and image communication control method |
| CN101254695B (en) * | 2007-01-30 | 2011-04-06 | 兄弟工业株式会社 | Ink-jet recording apparatus |
| CN112157991A (en) * | 2020-10-27 | 2021-01-01 | 恒银金融科技股份有限公司 | Method and circuit for doubling font resolution without changing printing nozzle |
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