WO2007116577A1 - 印字装置及び印字方法 - Google Patents
印字装置及び印字方法 Download PDFInfo
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- WO2007116577A1 WO2007116577A1 PCT/JP2007/000085 JP2007000085W WO2007116577A1 WO 2007116577 A1 WO2007116577 A1 WO 2007116577A1 JP 2007000085 W JP2007000085 W JP 2007000085W WO 2007116577 A1 WO2007116577 A1 WO 2007116577A1
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- Prior art keywords
- data
- printing
- scanning direction
- deformation
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- 238000007639 printing Methods 0.000 title claims abstract description 383
- 238000000034 method Methods 0.000 title claims description 37
- 230000000295 complement effect Effects 0.000 claims description 77
- 239000013589 supplement Substances 0.000 claims description 16
- 230000010363 phase shift Effects 0.000 claims description 9
- 241000282472 Canis lupus familiaris Species 0.000 claims 1
- 230000037303 wrinkles Effects 0.000 claims 1
- 238000012216 screening Methods 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 41
- 230000032258 transport Effects 0.000 description 24
- 238000010586 diagram Methods 0.000 description 20
- 238000001035 drying Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 7
- 238000012217 deletion Methods 0.000 description 4
- 230000037430 deletion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 241000219977 Vigna Species 0.000 description 1
- 235000010726 Vigna sinensis Nutrition 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/10—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers
- G06K15/102—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers using ink jet print heads
- G06K15/105—Multipass or interlaced printing
- G06K15/107—Mask selection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/14—Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction
- B41J19/142—Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction with a reciprocating print head printing in both directions across the paper width
- B41J19/147—Colour shift prevention
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/20—Positive-feed character-spacing mechanisms
- B41J19/202—Drive control means for carriage movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04523—Control methods or devices therefor, e.g. driver circuits, control circuits reducing size of the apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/145—Arrangement thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/205—Ink jet for printing a discrete number of tones
- B41J2/2054—Ink jet for printing a discrete number of tones by the variation of dot disposition or characteristics, e.g. dot number density, dot shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
- B41J2/2132—Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/10—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers
- G06K15/102—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers using ink jet print heads
- G06K15/105—Multipass or interlaced printing
Definitions
- the present invention supplies print data including a large number of pieces of dock information to a print head in which a plurality of dock forming elements are arranged along the sub-scanning direction, and the print head, the print medium,
- the present invention relates to a printing apparatus and a printing method of a method of moving a head in a scanning direction in an ink jet printer that moves an ink in a main scanning direction and a sub-scanning direction and prints an image on a surface of a printing medium.
- Patent Document 1 Japan National Publication No. 2003-3401-7
- Patent Document 2 Japan National Publication No. 2002-200745
- Patent Document 3 Japanese Patent Publication No. 2000-238935
- Patent Document 4 Japanese National Publication No. 09-99550
- Patent Document 5 Japanese Patent Publication No. 2000-52595
- the accuracy of the print position from the nozzle may not be achieved.
- the ink discharge control of this end nozzle and the other nozzles is the same, but the accuracy of the position of the ink discharged from the end nozzle may not be achieved, so this will be connected in the horizontal direction. In some cases, this is one of the causes of streaks.
- the phenomenon that stripes appear in the scanning direction of the heads at the joints does not appear side by side in the scanning direction.
- the purpose of this is to make the streak in the scanning direction inconspicuous.
- the present invention supplies print data comprising a large number of dock information to a print head in which a plurality of dock forming elements are arranged along the sub-scanning direction, and print head and print A printing apparatus that prints an image on the surface of a printing medium by moving the medium relative to the main scanning direction and the sub-scanning direction, and the sub-scanning direction of the print data supplied for each main scanning operation of the print head
- the deformation data portion is formed so that the docks are not arranged continuously in the main scanning direction of the print head at the end of the printing head. It is characterized by having.
- the printing of the image is performed in such a manner that N (N is a positive number) scans of the print head with respect to the print medium are sequentially completed as one unit.
- the print data of the image having the deformation data portion is supplied to a character head.
- the present invention also provides print data supplied to the print head every scan.
- the deformation data portion is formed at the rear end portion in the sub-scanning direction of the print data including the leading edge of the image, and the deformation data is respectively formed at the front end portion and the rear end portion in the sub-scanning direction of the print data at the intermediate portion of the image.
- the deformation data portion is formed at the front end in the sub-scanning direction of the print data including the rear end of the image.
- the present invention provides a print data that is supplied to the print head in the next print head scan when the image including the deformation data portion is completely printed. This is complemented by the deformation data part.
- the present invention is also a printing method for printing on a printing medium by sequentially moving printing heads in the main scanning direction and transporting the printing medium in the sub-scanning direction, with n (n is a positive number) printing data as printing units. Therefore, the line at the end on the joint side repeats an uneven shape so that a predetermined number of lines on the joint side of the print data are not lined up continuously in the main scanning direction.
- the uneven shape on the joint side of the print data and the uneven shape on the joint side of the other print data in contact with the print data are printed in a fitted state.
- the invention is characterized in that the uneven shape is a waveform. Further, according to the present invention, the uneven shape is formed by deleting the dock information on the joint side of the print data by a mask pattern, and the deleted dock information is the print data to be printed in a later scan. This is complemented by the uneven shape.
- the supplement data of the deleted dock information is created by inverting the mask pattern.
- the present invention also supplies print data comprising a large number of dock information to a print head in which a plurality of dock forming elements are arranged along the sub-scanning direction.
- a printing device that prints an image on the surface of a print medium by moving the print medium relative to the main scanning direction and the sub-scanning direction, and is the main data of the print data supplied for each main scanning operation of the print head
- a deformation data portion having a concavo-convex portion on the end portion side in the sub-scanning direction so as not to line up the dots continuously in the main scanning direction of the print head. The printing rate of the part is changed.
- the printing rate of the deformation data portion is changed in the sub-scanning direction.
- the printing rate on the joint side of the print data is changed in the sub-scanning direction.
- an area in which the print rate on the joint side of the print data is changed is used as a deformation data part, and complementary data that completes deleted and thinned dot data of the deformation data part is generated,
- the complementary data is printed by overlapping the modified data portion.
- the present invention also supplies print data comprising a large number of dock information to a print head in which a plurality of dock forming elements are arranged along the sub-scanning direction, and main-scans the print head and the print medium.
- a printing apparatus that prints an image on the surface of a print medium by relatively moving in the sub-scanning direction and the sub-scanning direction, and is supplied with each main scanning operation of the print head.
- a deformation data portion is formed so that the dots are not lined up continuously in the main scanning direction of the print head, and the printing rate of the deformation data portion is changed in the main scanning direction. .
- a printing rate of the deformation data portion is changed along both the main scanning direction and the sub-scanning direction.
- the invention is characterized in that the ridge arrangement of the concavo-convex portion of the deformation data portion has a waveform shape.
- an area with a printing rate of 100% is provided on the side of the deformation data portion that contacts the main data portion, and the area with the printing rate of 100% and the printing rate of the deformation data portion change.
- the region is in contact with the uneven area.
- the present invention is characterized in that the uneven shape is a wave shape.
- the present invention is also a printing method for printing on a printing medium by sequentially moving printing heads in the main scanning direction and transporting the printing medium in the sub-scanning direction, with n (n is a positive number) printing data as printing units.
- n is a positive number
- the end line on the joint side repeats an uneven shape, and a predetermined number in the vicinity of the joint side is determined.
- the range coverage is changed in the main scanning direction.
- the printing rate in a predetermined range near the joint side is changed along both the main scanning direction and the sub-scanning direction.
- the present invention provides a complementary data that complements the thinned-out dot data that is deleted from the deformed data portion, with an area where the print rate is changed in the main scanning direction on the joint side of the print data. Is generated, and the complement data is printed by overlapping the deformation data portion.
- the present invention provides complementary data that complements deleted and thinned dot data of the deformation data portion at the joint side of other print data where the joint is in contact with the print data including the deformation data portion,
- the complementary data is printed by overlapping the deformation data section.
- the invention is characterized in that the uneven shape of the deformation data portion is a waveform.
- the print head and the print medium are relatively moved in the main scanning direction and the sub-scanning direction, and a plurality of them are arranged in parallel so as to overlap in the main scanning direction.
- the printing data is formed by forming uneven portions on the end data in the sub-scanning direction of the print data so as not to line up the dots at the end of the print data continuously in the main scanning direction of the print head.
- a deformation data generation means for generating a deformation data section, wherein the deformation data generation means generates a deformation data section having a phase shift, and the plurality of print heads have a deformation data section having a phase shift.
- the print head and the print medium are relatively moved in the main scanning direction and the sub-scanning direction, and a large number of dots are formed on the print head in which a plurality of dock forming elements are arranged along the sub-scanning direction.
- a printing device that supplies print data consisting of information and prints an image on the surface of a print medium, and a plurality of print heads arranged in parallel so as to overlap in the main scanning direction, with a phase shift from each other
- One of the plurality of mask pattern data is selected, and the print data supplied to the print head according to the selected mask pattern data is continuously connected in the main scan direction of the print head at the end of the print head.
- a deformation data generating means for generating a deformation data portion formed with uneven portions for preventing the dots from being arranged, and a plurality of print heads having a deformation data portion in which the phase of the uneven portions is shifted.
- Supply print data Is obtained example Bei number to print Te cowpea in head and means for overprinted the deformed data portion deviated in the phase of the concave and convex portion.
- the invention is characterized in that the ridge arrangement of the concavo-convex portion of the deformation data portion has a waveform shape.
- the present invention provides an area having a change in printing rate in which the uneven portion is formed in the deformation data portion, and provides a region with a printing rate of 100% on the side contacting the main data portion of the print data.
- the area where the printing rate is 100% and the area where the printing rate of the deformation data portion has changed are in contact with each other in a concavo-convex shape.
- the invention is characterized in that the uneven shape is a wave shape.
- the present invention generates complement data that complements the deleted data of the deformation data portion, and supplements the deleted data of the deformation data portion with the complement data. It is.
- the present invention is such that the printing of the image is completed sequentially with N (N is a positive number) scanning of the print head with respect to the print medium as one unit, and the print head.
- Print data having the deformation data portion and print data having the complement data and print data having Z or both the deformation data portion and the complement data are supplied. .
- the deformation data portion is formed at the rear end portion in the sub-scanning direction of the print data including the front end of the print data supplied to the print head every scan, Forming the deformation data portion at the rear end of the print data in the sub-scanning direction, generating complementary data at the front end to complement the deformation data portion of the print data adjacent thereto, and Complement data for complementing the deformation data part of the print data in contact with the front end part in the sub-scanning direction of the print data including is generated.
- the present invention provides a print data that is supplied to the print head in the next print head scan when the image including the deformation data portion is completely printed. It is designed to be supplemented by supplementary data added to the end of the.
- print data of n (n is a positive number) lines are sequentially supplied as a print unit to a plurality of print heads arranged in parallel so as to overlap in the main scanning direction.
- a plurality of print heads are supplied with print data having a deformed data portion whose phase is shifted, and the deformed data portions whose phases are shifted by a plurality of print heads are overlaid and printed.
- print data of n (n is a positive number) lines are sequentially supplied as a print unit to a plurality of print heads arranged in parallel so as to overlap in the main scanning direction.
- complementary data that complements the deleted data in the deformation data portion is generated, and the complementary data is printed overlapping the deformation data portion.
- the present invention provides complementary data that complements the deleted dot data of the modified data portion at the joint side of other print data where the joint is in contact with the print data including the modified data portion, The data is overlapped and printed on the deformation data portion.
- the invention is characterized in that the uneven shape of the deformation data portion is a waveform.
- the present invention is a printing apparatus that moves the print head in the scanning direction, and the printing result that the streak-like phenomenon appears in the scanning direction of the head only by changing the data. Can be realized easily.
- FIG. 1 is an overall schematic configuration diagram of a printing apparatus.
- FIG. 2 is a flowchart showing the operation of the present invention.
- FIG. 3 is an explanatory diagram of a print head.
- FIG. 4 is an explanatory diagram of the present invention.
- FIG. 5 is an explanatory diagram of the present invention.
- FIG. 6 is an explanatory diagram of the present invention.
- FIG. 7 is an explanatory diagram of the present invention.
- FIG. 8 is an explanatory diagram of the present invention.
- FIG. 9 is an explanatory diagram of the present invention.
- FIG. 10 is an explanatory diagram of the present invention.
- FIG. 1 1 is an explanatory diagram of the present invention.
- FIG. 12 is an explanatory diagram of the present invention.
- FIG. 13 is an explanatory diagram of the present invention.
- FIG. 14 is an explanatory diagram of the present invention.
- FIG. 15 is an explanatory diagram of the present invention.
- FIG. 16 is an explanatory view showing another embodiment of the present invention.
- FIG. 17 is an explanatory view showing another embodiment of the present invention.
- FIG. 18 is an explanatory view showing another embodiment of the present invention.
- FIG. 19 is an explanatory diagram showing another embodiment of the present invention.
- FIG. 20 is an explanatory diagram showing another embodiment of the present invention.
- FIG. 21 is an explanatory view showing another embodiment of the present invention.
- FIG. 22 is an explanatory view showing another embodiment of the present invention.
- FIG. 23 is an explanatory diagram showing another embodiment of the present invention.
- FIG. 24 is an explanatory view showing another embodiment of the present invention.
- FIG. 25 is an explanatory view showing another embodiment of the present invention.
- FIG. 26 is an explanatory view showing another embodiment of the present invention.
- FIG. 27 is an explanatory view showing another embodiment of the present invention.
- FIG. 28 is an explanatory diagram showing another embodiment of the present invention.
- FIG. 29 is an explanatory diagram showing another embodiment of the present invention.
- FIG. 30 is an explanatory view showing another embodiment of the present invention.
- FIG. 31 is an explanatory diagram of a print head.
- FIG. 1 shows a schematic overall configuration of a printing apparatus according to the present invention.
- the ink jet printer 2 is controlled by a controller 4 including a computer circuit, and the controller 4 is connected to an external computer 8 via a connector 6.
- the controller 4 has a built-in program that converts the ends of the print data before and after the transport direction.
- the computer 8 transmits print data to the controller 4 mounted on the printer 1.
- the controller 4 analyzes the received data and drives the printer 2 drive unit.
- the printer 2 includes a sub-scan feed mechanism that transports a print medium 10 such as roll paper in the arrow direction B by a paper feed motor, and a main unit that reciprocates the carriage 12 in the axial direction of the drive roller 14 by a carriage motor. Scanning feed mechanism.
- the feed direction B of the print medium 10 by the sub-scan feed mechanism is called a sub-scan direction
- the moving direction A of the carriage 12 by the main scan feed mechanism is called a main scan direction.
- the term “print” does not mean simply writing characters, but a broad concept including images and symbols.
- the carriage 12 has a printing unit 16 equipped with a plurality of printing heads.
- the carriage 12 is reciprocally driven in the main scanning direction A along a Y-axis rail (not shown) by a head driving belt 22 stretched around belt driving rollers 18 and 20.
- the print medium 10 is driven in the sub-scanning direction by the drive roller 14 and the pinch roller 24 and slides on the platen 26.
- roll paper is usually used.
- the position of the carriage 12 is detected by a timing fence signal from a linear encoder including a sensor provided in the print unit 16 and a linear scale 28 provided so as to face the sensor.
- the carriage 12 when the printing operation starts, the carriage 12 is reciprocated in the main scanning direction along the Y-axis rail under the control of the controller 4, and is mounted on the printing unit 16 Ink droplets are ejected from the nozzles of the print head.
- the controller 4 moves the printing medium 10 by a predetermined pitch in the sub-scanning direction and executes the next printing operation in the main scanning direction.
- the printer 2, the controller 4 and the converter 8 constitute a printing apparatus as a whole.
- the computer 8 generates print data such as signature characters, figures, patterns, and images to be printed out.
- the print data generated by the computer 8 is transferred to the controller 4 via the connector 6 (steps 1 and 2).
- the roller 4 receives the print data from the computer 8 based on the program stored in the memory, and analyzes the print data (step 3).
- the CMYK converter of controller 4 converts the color of each pixel into an ink color that can be output by printer 2.
- the print data is converted into print data corresponding to the ink jet print head (step 4).
- FIG. 3 shows the print head 30.
- the printing unit 16 is provided with a plurality of print heads that eject inks of the respective colors of black (K), cyan (C), magenta (M), and yellow (Y).
- K black
- C cyan
- M magenta
- Y yellow
- the print head 30 has 25 6 nozzles 32 arranged in the sub-scanning direction. In the drawing, all nozzles are not shown for the sake of drawing. Of course, various resolutions of the print head 30 can be employed, and the number of nozzles is not particularly limited to 2 56 nozzles.
- the paper transport distance per run is 60 nozzles, it is 4 times the 60 nozzles.
- the number of nozzles used, transport distance, number of scans, etc. can be changed as necessary.
- print data A, B, C, and D corresponding to the first four scans of the print head 30.
- FIG. 7 the printing of the image corresponding to the scanning region 33 for 60 nozzles is completed by four scans of the print head 30.
- Print data A corresponds to the size of 74 nozzles of the print head in the sub-scanning direction of the data, and the rear end 3 4 ( At the joint), a deformation data portion 36 of a waveform corresponding to 14 nozzles is formed.
- This deformation data part 36 is the rear end of all print data A, B, C, D Part 3 4 (joint) is formed.
- FIG. 13 shows a method for generating the deformation data portion 36.
- the controller 6 stores in advance a basic mask pattern 38 for creating the deformation data portion in the memory.
- the basic mask pattern 3 8 is a waveform, but as shown in FIG. 14, in addition to the waveform pattern (w), a triangular waveform pattern (t)
- any irregular shape may be used as long as the dots are not continuously arranged in the main scanning direction, such as a convex pattern (p) and a saw blade pattern (S).
- the height and length of the waveform pattern may be arbitrarily set as required, and is not particularly limited to the figure.
- the part 42 deleted from the changed part data 40 is normally discarded, but is stored in the memory as the complementary data A 'of the print data A.
- the complementary data A 'of the print data A As will be described later, in the fifth printing operation, it may be created as a supplement to the front end 44 of the print data E shown in FIG.
- the print data A, B, C, and D including the front end portion 4 6 of the original image, that is, the print start end in the print data, is formed with a deformation data portion 3 6 at the rear end portion 3 4 in the transport direction.
- the deformation data portion 36 is formed at the front end portion 44 in the transport direction and includes the front and rear end portions of the original image.
- deformation data portions 3 6 are formed at the front and rear end portions 4 4 and 3 4 in the transport direction.
- the connecting side of each print data A, B, C, D, E, F, G, H, and I in which the deformation data section 36 is formed has a waveform shape.
- Step 5 when the change processing of the end portions before and after the conveyance direction of the print data is executed (Step 5)
- the controller 4 transfers the print data to the print head 30 (Step 6), printing by the head unit 16 (Step 7), and the print medium 10 is conveyed (Step 5). 8) The original image is printed on the print medium 10.
- steps 7 and 8 above will be described below with reference to Figs.
- FIG. 4 shows the first scan by the print head 30.
- the print data A with the waveform at the joint side is printed on the print medium 10.
- the print medium 10 is conveyed in the conveyance direction by 60 nozzles.
- the print head 30 moves in the main scanning direction, and the second print is performed. B is printed.
- the print medium 10 is transported in the transport direction by 60 nozzles. In this way, the third and fourth printing is performed as shown in Figs.
- the printing of the first area 50 corresponding to the length of 60 nozzles of the printing medium 10 is completed.
- This area 50 is scanned four times by print data A, B, C, and D, as indicated by A + B + C + D in Fig. 7, but the deleted part 52 of the deformation data part is The print data B, C, and D are printed only three times. Therefore, it is necessary to supplement this deleted part 52.
- the print medium 10 is transported in the transport direction for 60 nozzles, the print head 30 is moved in the main scanning direction, and the fifth printing is performed.
- Print data E with the length of 2 5 4 nozzles in the middle part of is printed.
- the data deletion part 52 of the waveform deformation part in the first area 50 is complemented by the supplement data A ′ of the print data A described above. That is, the front end portion 4 4 (joint side) of the print data E is created as the deformation data portion 36 of the supplementary data A, of the print data A.
- the print data E having a length corresponding to 2 5 4 nozzles of the intermediate portion of one original image has the deformation data portion of the adjacent region 50 at the front end portion 4 4 thereof.
- Complementary data to be complemented is created as the deformation data part 36.
- the deformation data part 36 of E that is, the corrugated uneven shape on the joint side, fits closely with the corrugated uneven shape on the joint side of print data A.
- a line continuously extending in the main scanning direction is not formed at the joint (boundary) between the first area 50 and the second area 54 of the printing medium 10 0, and the head scanning direction
- the phenomenon that looks like a streak does not occur.
- the sixth printing is executed by print data F having a length of 2 5 4 nozzles including the rear end portion 48 of the original image.
- the print data F is formed with a deformation data portion 36 that complements the deformation data portion 36 of the print data B at the front end.
- the corrugated uneven shape on the joint side of the print data F fits closely with the corrugated uneven shape on the joint side of the print data B.
- the seventh printing is executed by the print data G having a length of 19 4 nozzles including the rear end portion 48 of the original image.
- a deformation data portion 36 that complements the deformation data portion 36 of the print data C is formed at the front end.
- the corrugated uneven shape on the joint side of print data G fits with the corrugated uneven shape on the joint side of print data C.
- the 8th printing is executed by the print data H having a length of 1 3 4 nozzles including the rear end portion 48 of the original image.
- the print data H is formed with a deformation data portion 36 that complements the deformation data portion 36 of the print data D at the front end.
- the corrugated shape on the joint side of print data H fits closely with the corrugated shape on the joint side of print data D.
- the ninth printing is executed by the printing data H having a length of 74 nozzles including the rear end portion 48 (original end portion) of the original image.
- a deformed data portion 36 that complements the deformed data portion 36 of the print data E is formed in the front end portion 44.
- the corrugated shape of the deformation data part 36 on the joint side of print data I fits closely with the corrugated shape on the joint side of print data E, and printing of the original image is completed. Note that this embodiment only explains the concept as an explanation. If data continues, a data portion corresponding to E is created. It goes without saying that the data after F (step 9) is finally created.
- the conveyance of the print medium is set to be performed at equal intervals by 60 nozzles as described above, but may be changed for each conveyance. This is for printing dots smaller than the nozzle pitch, so that the regular interval is 60 nozzles.
- Controller 4 determines whether or not the print data has been completed in step 9, and if the determination is affirmative, it ends printing.
- an ink jet printer provided with a head for ejecting ink using a piezoelectric element is used.
- the present invention is not particularly limited to an ink jet printer using a piezoelectric element. It can be used for a printer of a type in which ink is ejected by a bubble and the unit moves in the horizontal direction.
- FIG. 2 The configuration of the printing apparatus used in the present embodiment is the same as the printing apparatus shown in FIG. 1 in the first embodiment, and the printing operation is the same as that described in the flowchart shown in FIG. .
- one paper transport distance is set to 50 nozzles.
- 20 nozzles, which is 4 times the 50 nozzles, and 5 4 nozzles for printing end data are assigned as nozzles used for printing, and printing is performed while using the 2 5 4 nozzles. Go. Therefore, the remaining two nozzles are unused.
- Fig. 1 6 1 8 nozzles are used for printing the area a including the wavy part w with a printing rate of 100% in the deformation data part 36, which will be described later, and the remaining 36 nozzles change the printing rate with uneven parts.
- the number of nozzles used, transport distance, number of scans, etc. can be changed as necessary.
- FIGS. 16 to 19 disclose print data A, B, C, and D corresponding to the first four scans of the print head 30.
- printing of the image corresponding to the scanning area 33 for 50 nozzles is completed by scanning the printing head 30 four times.
- the print data A corresponds to the size of the 104 nozzles of the print head in the sub-scanning direction of the print data.
- the print medium 10 is based on the transport direction, the print data A is in contact with the rear end 34 of the main data portion e.
- a deformation data portion 36 having a waveform for 54 nozzles is formed.
- the deformation data portion 36 is formed at the rear end portion 34 of all the main data portions of the print data A, B, C, and D.
- the front end portion or the rear end portion is based on the conveyance direction of the print medium, that is, the sub-scanning direction in the printing apparatus.
- the deformation data section 36 is configured to print in the printing rate in this embodiment.
- the deformation data portion 36 formed in each print data has a configuration in which the print rate changes in the sub-scanning direction, that is, the print rate is 0% or 50% as shown in FIG. 1 (B). It is configured to change to 0%, 50%, 100% or 50%, 100%.
- the printing rate means the rate of printing of data that needs to be printed in one scan, and the printing rate of 100% means that all of this data (1 00%) is printed.
- FIG. 15 shows a method for generating the deformation data section 36.
- the controller 6 stores a basic mask pattern 38 for creating a deformation data portion in a memory in advance.
- the basic mask pattern 38 includes an area with a printing rate of 0%, an area with 50%, and an area with 100%.
- the boundary between the print rate of 0% and the print rate of 50% and the region of the print rate of 50% and the print rate of 100% are in contact with each other in a wavy pattern.
- Print rate 0% In this embodiment, the concavo-convex line L 1 formed on the boundary between the printing rate 50% and the printing rate 50% and the printing rate 100% on the boundary is a waveform.
- a triangular waveform pattern, a convex pattern, a saw blade pattern, or any other irregular shape may be used as long as the dots are not continuously arranged in the main scanning direction.
- the height, length, and the like of the waveform pattern may be arbitrarily set as necessary, and are not limited to a specific shape.
- the data for the 5 4 nozzle width adjacent to the rear end of the main data part e of the print data A is changed to the data 40,
- This data 40 is expanded so that the basic mask pattern 3 8 is connected to the waveform, as shown in Fig. 15 (B), and the changed part data 40 is the masked part, that is, the part where no dot exists d, a print rate change part c whose density is changed to 50%, and a part w whose print rate is 100% are generated.
- the printing rate changing region c of the basic mask pattern with a printing rate of 50% is not particularly limited to a printing rate of 50%, nor is it limited to a single printing rate.
- the basic mask pattern 3 8 is provided with areas with multiple print rates of 0%, 25%, 50%, 75%, and 100%, and data 4 0 is divided into multiple different areas.
- Print rate area For example, 0%, 25%, 50%, 75%, 100%, and so on, may be configured by areas where the print rate changes in the sub-scanning direction.
- the deformation data portion 36 of each print data deletes the dot information of the area d by the basic mask pattern and thins out the dot information of the area c according to the printing rate. This deleted and thinned dot information needs to be complemented when printing of the deformation data portion of each print data is completed.
- the controller generates supplementary data for each modified data portion as data that complements the deleted decimated data portion of the print data and stores it in the memory.
- the deformation data portion 3 6 is printed with the supplementary data including the deleted and thinned out dot information overlapped, and the deformation data portion 3 6 Is complemented.
- the 50% print rate portion of the deformation data portion is complemented by the 50% print rate portion of the complement data. That is, the distribution of the density of the deformation data portion 36 and the complementary data that complements the deformation data portion 36 is set to be 1 0 0 0/0.
- the supplementary data is not limited to a configuration that is supplemented by a single printing, but may be a configuration that is supplemented by a plurality of printings.
- the density change part c of the deformation data part 3 6 printed at a printing rate (density) of 50% is complemented by two printing operations with two supplementary data of density 30% and 20%. It is also good. Considering the point of ink drying by the heater on the printing surface, printing at 80% density is performed first, and later printing is complemented by the supplemental data at 20% density. Is also effective.
- the supplementary data A "of the deformation data part 36 shown as the print change part A 'in Fig. 16 of print data A is the basic mask pattern 3 8 shown in Fig. 15 (A). (Deleted) Generated by a mask pattern (not shown) with dot information inverted In the same manner for other complementary data B ", C", D ", E" described later.
- the print data A, B, C, and D including the print start end in the original image include the front end portion 4 6 of the original image.
- Edge 3 4 The deformation data portion 36, that is, A ′, B ′, C ′, D ′ is formed in FIG.
- the print data F, G, H, and I including the rear end portion 48 of the original image, that is, the print end end, are supplementary data B ", C", D ",
- the print data E of the intermediate part that does not include the front and rear end parts of the original image is formed with supplementary data A "at the front end in the transport direction, as shown in Fig. 20, and at the rear end.
- Deformed data part E ' is formed
- the joint side of each print data A, B, C, D, E, F, G, H, I in which the deformed data part and complementary data are formed is The waveform shape.
- step 5 when the change processing of the front and rear ends of the print data is performed (step 5), the controller 4 then transfers the print data to the print head 30 (step 6), and the head unit Printing by 1 6 (step 7), the printing medium 10 is conveyed (step 8), and the original image is printed on the printing medium 10.
- step 6 the print head 30
- step 7 the head unit Printing by 1 6
- step 8 the printing medium 10 is conveyed (step 8), and the original image is printed on the printing medium 10.
- FIG. 16 shows the first scan by the print head 30.
- the print data A with the waveform on the joint side is printed on the print medium 10.
- the print medium 10 is conveyed in the conveyance direction by 50 nozzles.
- the print head 30 moves in the main scanning direction, and the second printing is performed. Is printed.
- the print medium 10 is transported in the transport direction by 50 nozzles. In this way, the third and fourth printing are performed as shown in Figs.
- the printing of the first area 50 corresponding to the length of 50 nozzles on the printing medium 10 is completed.
- this area 50 as indicated by A + B + C + D in FIG. 8, four scans are performed by the print data A, B, C, D, and printing is completed.
- the area 52 of 54 nozzles adjacent to the first area 50 of the print medium 10 as shown by A '+ B + C + D, the deformation data of the print data A Data area A 'and print data B, C, and D are printed, and this area has not yet been supplemented with the dot information printed by the deformed data area A'. Therefore, it is necessary to complement the deformation data part A ′ with the supplement data A ”including the supplement data with a concentration of 50%.
- the print medium 10 is conveyed in the conveyance direction by 50 nozzles, the print head 30 is moved in the main scanning direction, and the fifth printing is performed.
- Print data E with a length of 2 5 4 nozzles in the middle of the original image is printed.
- the data deletion thinned portion of the change data portion in area 52 is supplemented by the supplement data A "of the print data A. That is, the front end portion 4 4 (joint side) of the print data E , Complementary data A "consisting of supplementary data A" of print data A is generated.
- the print data E having a length corresponding to 2 5 4 nozzles in the middle part of one original image complements the deformation data part A ′ of the adjacent area 50 to the front end part 4 4 thereof.
- Complement data A "to be created is created as a supplement data section A”.
- the first area of the print medium 10 Lines that continuously extend in the main scanning direction are not formed at the junction (boundary) between the 0 and the second areas 5 4, and the phenomenon of appearing as stripes in the head scanning direction does not occur This also applies to the joints of the other areas of the print medium 10 0.
- the 6th print is the length of 2 5 4 nozzles including the rear end part 48 of the original image as shown in Fig. 21. This is executed by the print data F.
- the print data F is formed with complementary data ⁇ ⁇ "that complements the deformation data portion 36 ( ⁇ ') of the print data B at the front end.
- the corrugated shape on the joint side of print data F fits closely with the corrugated shape on the joint side of print data ⁇ , and the complementary data ⁇ "is printed overlapping the deformation data part B '.
- the 7th printing is executed by the print data G with a length of 2 0 4 nozzles including the rear end portion 48 of the original image.
- the deformation data part 3 of print data C 6 Complementary data C "that complements (C) is formed.
- the corrugated shape on the joint side of the print data G fits closely with the corrugated shape on the joint side of the print data C.
- the 8th printing is executed with the print data H of the length of 1 5 4 nozzles including the rear end portion 48 of the original image.
- the print data H is formed with complementary data D "that complements the deformation data part 36 (D ') of the print data D at the front end.
- the waveform uneven shape on the joint side of the print data H is , Fits closely to the corrugated shape on the joint side of the print data D.
- the 9th printing is executed with the print data I of length of 104 nozzles including the rear end part 4 8 of the original image (end of printing end).
- a complementary data portion ⁇ "that complements the deformation data portion 36 ((') of the print data E is formed in the front end portion 4 4 thereof.
- the waveform uneven shape of the deformation data part 3 6 on the joint side of the print data I fits closely with the waveform uneven shape on the joint side of the print data ⁇ , and the deformation data part 3 6 ( ⁇ ') of the print data ⁇
- Complementary data ⁇ is used to complete the printing of the original image. Note that this embodiment only explains the concept as an explanation, and if the data continues, the portion of the data corresponding to ⁇ Needless to say, data is created sequentially (see step 9 in Figure 2), and finally data after F is created.
- the conveyance of the print medium is set to be performed at equal intervals of 50 nozzles as described above, but may be changed for each conveyance. This is for printing a dot smaller than the nozzle pitch, so the regular interval is 50 nozzles.
- printing and paper feeding may occur when the print head moves forward, and printing and paper feeding may occur when returning. In some cases, the same line is printed in the forward and backward movements.
- the scanning of the head and the conveyance of the paper are not particularly limited to the illustrated system.
- Controller 4 determines in step 9 shown in Fig. 2 whether or not the print data has been completed, and if it determines affirmative, it ends printing.
- FIG. 2 Next, another embodiment of the present invention will be described with reference to FIGS. 2, 16 to 24, and 26 to 28.
- FIG. 1 is a diagrammatic representation of FIG. 1
- the operation for forming an image is the same as the operation described in FIGS. 16 to 24 in the second embodiment in principle, and avoids repeated description. Therefore, the description is omitted.
- the deformation data portion 36 has a waveform area w with a printing rate (density) of 100% and a printing rate at which the printing rate changes in the main scanning direction, that is, the head moving direction. It consists of a change area c and a waveform area d with a print rate of 0%.
- the printing rate here means the rate of printing when the data that needs to be printed in one scan is considered as 100, and the printing rate of 100% means that the data of 1 0 0 All (1 0 0%) means to print.
- FIG. 26 shows a method for generating the deformation data part 36.
- the controller 6 stores in advance a basic mask pattern 38 for creating the deformation data portion in the memory.
- the basic mask pattern 3 8 includes a region d with a printing rate of 0%, a region c in which the printing rate changes in the main scanning direction, and a region w with a printing rate of 100%.
- Area c is further divided into areas c 1 and Character area 2 6 to 50% area c 2 and c 3, Print ratio 5 1 to 75 5% area c 4 and c 5, Print ratio 7 6 to 100% Area c 6 and c 7 Has been.
- each of the regions c1 to c7 is configured such that the left and right end sides have the highest printing rate and gradually become lower toward the center.
- the basic mask pattern 38 in which the printing rate changes in the main scanning direction is not limited to one that changes the printing rate only in the horizontal direction (main scanning direction) as shown in FIG.
- the print rate may be changed along both the vertical direction (sub-scanning direction) and the horizontal direction (main scanning direction).
- the area c of the basic mask pattern 3 8 changes from a printing ratio of 7 6 to 100% to a printing ratio of 0 to 25% with the central area from bottom to top. ing.
- the left and right areas of area c change from 7 6 to 100% print rate to 0 to 25% print rate from the bottom to the diagonally upper center.
- the arrow y 1 in Fig. 8 shows the state in which the printing rate of the central part of the area c decreases in the vertical direction (sub-scanning direction) in the direction of the arrow, and the arrows y 2 and y 3
- This area indicates that the printing rate decreases in the direction of the arrow along both the vertical direction (sub-scanning direction) and the horizontal direction (main scanning direction).
- the boundary between the area d and the area c with a printing rate of 0% and the area w with the area c and the printing ratio of 100% are in a wavy shape.
- the uneven line L 1 formed at the boundary between the area d and the area c with a printing rate of 0% and the uneven line L 2 formed at the boundary between the area c and the area w with a printing rate of 100% are represented in this embodiment.
- a waveform in addition to the waveform pattern, a triangular waveform pattern, a convex pattern, a saw blade pattern, etc., as long as the dots do not line up continuously in the main scanning direction, any irregular shape may be used. .
- the height, length, and the like of the waveform pattern may be arbitrarily set as necessary, and are not limited to a specific shape.
- the data for the 5 4 nozzle width adjacent to the rear end of the main data part e of the print data A is changed to the data 40, This data 40 is expanded so that the basic mask pattern 3 8 is connected to the waveform.
- the data 40 of the changed portion has the masked portion, that is, the portion d where no dot exists, and the density shown in FIG.
- the printing rate change part C changing in the main scanning direction and the printing rate is 1
- the printing rate change area c of the basic mask pattern 38 is not limited to a specific printing rate. As shown in Fig. 16, the deformation data part 3 6 of each print data is deleted with the basic mask pattern, and the dock information of the area d is deleted according to the print rate. . This deleted and thinned out dot information needs to be complemented when printing of the deformation data portion of each print data is completed.
- the controller generates complementary data for each modified data portion and stores it in the memory as data that complements the culling information deleted and thinned out from the modified data portion of the print data.
- the deformation data portion 3 6 is printed with the supplementary data including the deleted and thinned out dot information overlapped, and the deformation data portion 3 6 Is complemented.
- the density distribution of the deformed data portion 36 and the complementary data that complements the deformed data portion 36 is set to be 100% by adding.
- the supplementary data is not limited to a configuration that is supplemented by a single printing, but may be a configuration that is supplemented by a plurality of printings.
- the density change part c of the deformation data part 36 printed at a printing rate (density) of 50% is complemented by two printing operations with two supplementary data of density 30% and 20%. It is good also as composition to do.
- the technique for changing the printing rate of the deformation data portion and complementary data in the main scanning direction is not particularly limited to a configuration using a mask pattern, and is simply calculated by a controller. Reproducible technology such as thinning out information may be used. It is also possible to adopt a configuration in which the deformation data portion 36 and the portion of the supplementary data whose print rate is changed are finely and continuously changed by gradation technology.
- the supplementary data A "of the deformed data part 36 shown as the print change part A 'in Fig. 16 in Fig. 16 is the ON (printing) of the basic mask pattern 3 8 shown in Fig. 26 (B). Off (deleted) Generated by a mask pattern (not shown) with dot information inverted In the same way, other complementary data B ", C", D ", E” described later.
- FIG. 2 Next, another embodiment of the present invention will be described with reference to FIGS. 2, 16 to 24, and 29 to 31.
- FIG. 1 is a diagrammatic representation of FIG. 1
- the configuration of the printing apparatus used in the present embodiment is the same as the configuration described in FIGS. 1 and 2 in the first embodiment. Further, since the principle of the printing operation of the printing apparatus used in the present embodiment is the same as that of the second embodiment, FIG. 16 to FIG. 16 used in the description of the second embodiment. The printing operation of this embodiment will be described using 24.
- the computer 8 generates print data such as signature characters, figures, and patterns to be printed out.
- Print data generated by the computer 8 is transferred to the controller 4 via the connector 6 (steps 1 and 2).
- Controller 4 prints from computer 8 based on the program stored in memory.
- Receive the data and analyze the print data (Step 3).
- the CMYK converter of controller 4 converts the color of each pixel into an ink color that can be output by printer 2.
- the print data is converted into print data corresponding to the ink jet print head (step 4).
- FIG. 31 shows a print head 30 used in this embodiment.
- the print unit 16 is equipped with six print heads 30 that eject black (K), cyan (C), magenta (M), yellow (Y), and other colors. Yes.
- print head 30 eject black (K), cyan (C), magenta (M), yellow (Y), and other colors. Yes.
- the print head 30 has 25 6 nozzles 32 arranged in the sub-scanning direction. In the drawing, not all nozzles are shown for the convenience of drawing. Of course, various resolutions of the print head 30 can be adopted, and the number of nozzles is not particularly limited to 2 5 6 nozzles.
- the nozzle arrangement of the print head 30 can adopt a single-row or multi-row configuration.
- the paper transport distance for one time is 50 nozzles, it is 4 times the 50 nozzles 2 0 Allocate 0 nozzles and 5 4 nozzles for printing end data as nozzles to be used for printing, and print while using the 2 5 4 nozzles. Therefore, the remaining two nozzles are unused.
- 18 nozzles are printed in the area a including the wavy portion w having a printing rate of 100% in the deformation data portion 36 described later.
- the remaining 36 nozzles are used for printing in the printing rate change area b in which the printing rate with uneven portions is changed.
- the number of nozzles used, transport distance, number of scans, etc. can be changed as necessary.
- FIGS. 16 to 19 disclose print data A, B, C, and D corresponding to the first four scans of the print head 30.
- printing of the image corresponding to the scanning area 33 for 50 nozzles is completed by scanning the printing head 30 times 4 times.
- the size of the print data A in the sub-scanning direction of the data corresponds to 10 4 nozzles of the print head.
- a deformed data portion 3 6 of a waveform corresponding to 5 4 nozzles is formed.
- the deformation data portion 36 is formed at the rear end portion 34 of all the main data portions of the print data A, B, C, D.
- the front end portion or the rear end portion is based on the conveyance direction of the print medium, that is, the sub-scanning direction in the printing apparatus.
- the deformation data portion 3 6 includes a waveform area w with a printing rate (density) of 100%, a printing rate change area c with a printing rate of 50%, and a printing rate of 0 in this embodiment.
- % Waveform area d Various printing rates can be adopted as the printing rate in the printing rate changing area c, and the printing rate is not particularly limited to 50%. Further, the print rate may be changed stepwise or continuously in the sub-scanning direction or the main scanning direction between 0% and 100%.
- the print rate here means the ratio of data that needs to be printed in one scan.
- the print rate of 1 0 0% means that all of this data is printed (1 0 0%). Means.
- FIG. 29 shows a method for generating the deformation data portion 36.
- the controller 6 stores in advance a basic mask pattern 38 for creating the deformation data portion in the memory.
- the basic mask pattern 3 8 includes a region d with a printing rate of 0%, a region c in which the printing rate changes in the main scanning direction, and a region w with a printing rate of 100%.
- the boundary between the region d and the region c with a printing rate of 0% and the region c with the region c and the printing rate of 100% are in undulation.
- the uneven line L 1 formed at the boundary between the area d and the area c with a printing rate of 0% and the uneven line L 2 formed at the boundary between the area c and the area w with a printing rate of 100% are represented in the present embodiment.
- any irregular shape may be used as long as the dough is not continuously arranged in the main scanning direction, such as a triangular waveform pattern, a convex pattern, a sawtooth pattern, etc. .
- the height and length of the waveform pattern may be arbitrarily set as necessary, and are not limited to a specific shape.
- the main part of the print data A Data corresponding to the width of the 4 nozzles adjacent to the rear end of the data part e is changed to the data 40 of the changed part, and this data 40 is expanded so that the basic mask pattern 3 8 is connected to the waveform.
- a masked portion that is, a portion d where no dot exists, a printing rate changing portion c where the density is changed, and a portion w where the printing rate is 100% are generated.
- the printing rate changing area c of the basic mask pattern 38 is not limited to a specific printing rate. As shown in Fig.
- the deformation data part 36 of each print data is deleted by the basic mask pattern 38, and the dock information of area d is deleted according to the printing rate. It is burned.
- a plurality of mask pattern data 3 8 is shifted by shifting the phase of the basic mask pattern 3 8 shown in FIG. b, 3 8 c, 3 8 d are created, and based on this, the deformation data part 36 is generated in the print data.
- the mask pattern data 3 8 a that is the starting point of the pattern period is shown in Fig. 29 (B) as a basic form.
- Mask pattern data 3 8 b having the point b shifted in the main scanning direction from the point a of the basic mask pattern 3 8 as the start point of the pattern period is shown as a developed form from the portion b.
- Mask pattern data 3 8 c with the point c of the basic mask pattern 3 8 as the start point of the pattern period is shown as an expanded form from the portion c.
- Mask pattern data 3 8 d having the point d of the basic mask pattern 3 8 as the start point of the pattern period is shown as a developed form from the portion d.
- the print data having the deformation data portion 3 6 deformed by the mask pattern data 3 8 a is supplied to the print heads 30 of No.
- the print data having the deformed data portion 36 transformed by the above is supplied to No. 2, 4, 6.
- the combination of the mask pattern data and the print head is not particularly limited to this combination.
- Dot information that has been deleted and thinned out of data 40 of each print data is the deformation data of each print data. When the printing of the part is completed, it needs to be supplemented.
- the controller generates complementary data for each modified data portion and stores it in the memory as data that complements the thinned out dot information of the modified data portion of the print data.
- the deformation data portion 3 6 is printed with the supplementary data including the deleted and thinned out dot information overlapped, and the deformation data portion 3 6 Is complemented.
- the density distribution of the deformed data portion 36 and the complementary data that complements the deformed data portion 36 is set to be 100% by adding.
- the supplementary data is not limited to a configuration that is supplemented by a single printing, but may be a configuration that is supplemented by a plurality of printings.
- the density change part c of the deformation data part 36 printed at a printing rate (density) of 50% is complemented by two printing operations with two supplementary data of density 30% and 20%. It is good also as composition to do.
- the print head 30 is divided into No. 1, 2, No. 3, 4, No. 5, No. 6, the number of print heads is less than the number of print heads. Even mask patterns can be used.
- the deformation data generation means for changing the print rate of the deformation data part and the supplemental data is not particularly limited to a configuration using a mask pattern, and the controller simply thins out dot information by calculation. Reproducible technology may be used. It is also possible to adopt a configuration in which the deformation data portion 36 and the print rate changing portion of the complementary data are changed finely and continuously by gradation technology. As shown in FIG. 31, the present embodiment employs a configuration in which the printing unit 16 performs printing in six colors using six No. 1 to 6 printing heads 30. Fig. 16
- Reference numeral 24 denotes the printing operation of the No. 1 print head 30 out of the six print heads 30. In this embodiment, this No. 1 print head 30 is connected to FIG.
- the print data generated by the deformation data section 36 by the mask pattern data 38a shown in (B) is input.
- the operations of the other print heads 30 of No. 2 to 6 are the same as those of the print head 30 of No. 1, and the description thereof is omitted.
- the complement data A "of the deformation data part 36 shown as the print change part A 'in Fig. 16 in Fig. 16 is the ON (printing) OFF (deletion) of the mask pattern 38 shown in Fig. 29 (A). It is generated by a mask pattern (not shown) with dot information inverted, and the same applies to other complementary data B ", C", D ", and E" described later.
- the print data A, B, C, and D including the print start edge 46 in the original image are included in the print data at the rear edge 34 in the transport direction.
- Deformed data portion 36 that is, A ', B', C ', D' is formed, and print data F, G, H including the rear end portion 48 of the original image, that is, the print end, as shown in FIGS. , I has complementary data B ", C", D ", E” formed at the front end 44 in the transport direction, and as shown in Fig. 20, prints the middle part not including the front and rear end parts of the original image
- data E complementary data A "is formed at the front end in the transport direction, and deformation data E 'is formed at the rear end.
- the connecting side of each of the print data A, B, C, D, E, F, G, H, and I in which the deformation data portion and the complement data are formed has a waveform shape.
- FIGS. 16 to 24 show the print data in which the deformation data portion generated by the mask pattern data not shifted in phase and the supplementary data are formed. Only the case of printing with the head 30 is shown, and the printing operation by other printing heads is omitted.
- FIG. 16 shows the first scan by the print head 30.
- the print data A with the waveform on the joint side is printed on the print medium 10.
- the print medium 10 is conveyed in the conveyance direction by 50 nozzles.
- the print head 30 moves in the main scanning direction, the second printing is performed, and the joint side has a length corresponding to 15 4 nozzles.
- Data B is printed.
- the print medium 10 is transported in the transport direction by 50 nozzles. In this way, the third and fourth printing are performed as shown in Figs.
- the printing of the first area 50 corresponding to the length of 50 nozzles on the printing medium 10 is completed.
- This area 50 is scanned four times by print data A, B, C, and D as shown by A + B + C + D in Fig. 18 and printing is completed.
- Print data B, C, and D are printed, and this area has not yet been supplemented with the dot information printed by the deformed data part A '. Therefore, it is necessary to supplement the deformation data part A ′ with the supplement data A ”including the supplement data with a concentration of 50%.
- the print medium 10 is transported in the transport direction by 50 nozzles, the print head 30 is moved in the main scanning direction, and the fifth print is performed.
- Print data E with the length of 2 5 4 nozzles in the middle part of is printed.
- the data deletion thinning part of the change data part in area 52 is The supplementary data A "of the print data A consists of the supplementary data A" of the print data A at the front end 4 4 (joint side) of the print data E. Has been generated.
- the print data E having the length of 2 5 4 nozzles of the intermediate portion of one original image is the deformation data portion A of the area 50 adjacent to the front end portion 4 4 thereof.
- Complement data A “that complements' is created as the complement data part A”.
- Complementary data A of print data E “That is, the corrugated uneven shape on the joint side fits closely with the corrugated uneven shape on the joint side of print data A.
- the first area of the print medium 10 Lines that continuously extend in the main scanning direction are not formed at the junction (boundary) between the 0 and the second areas 5 4, and the phenomenon of appearing as stripes in the head scanning direction does not occur The same applies to the joints of the other areas of the print medium 10 0.
- the 6th print is the length of 2 5 4 nozzles including the rear end part 48 of the original image as shown in Fig. 22. This is executed by the print data F.
- the print data F is formed with complementary data ⁇ ⁇ "that complements the deformation data portion 36 ( ⁇ ') of the print data B at the front end.
- the corrugated shape on the joint side of print data F fits closely with the corrugated shape on the joint side of print data ⁇ , and the complementary data ⁇ "is overlapped and printed on deformation data part B '
- the 7th printing is performed by print data G with a length of 2 0 4 nozzles including the rear end portion 48 of the original image.
- complementary data C for complementing the deformation data portion 36 (C) of the print data C is formed.
- the corrugated shape on the joint side of the print data G fits exactly with the corrugated shape on the joint side of the print data C, and the supplementary data C "is printed overlapping the deformation data section C '.
- the deformation data part C 'of C is complemented by the supplement data C ".
- the 8th printing is executed with the printing data ⁇ with a length of 1 5 4 nozzles including the trailing edge 48 of the original image.
- the print data ⁇ has complementary data that complements the deformation data part 3 6 (D ') of print data D at the front end. D ”is formed.
- the corrugated shape on the joint side of the print data H fits closely with the corrugated shape on the joint side of the print data D.
- the ninth print is after the original image. Including end part 4 8 (printing end) 1 0 4 nozzle length of print data I is executed Print data I has its front end part 4 4 and deformation data part of print data E 3 6 A complement data part ⁇ "that complements ( ⁇ ') is formed.
- the waveform uneven shape of the deformation data part 3 6 on the joint side of the print data I fits closely with the waveform uneven shape on the joint side of the print data ⁇ , and the deformation data part 3 6 ( ⁇ ') of the print data ⁇
- this embodiment only explains the concept as an explanation, and if the data continues, the portion of the data corresponding to ⁇ It goes without saying that the data is created sequentially (Step 9), and finally the data after F is created, as shown in Figure 30.
- Fig. 30 shows the modified data part 3 generated from the basic mask pattern data 3 8a.
- the deformation data part 3 a generated by the a 3 6 Printing data with Is supplied to the print head 30 of No. 1, 3, 5 and the print data having the deformation data portion 36 generated by the developed mask pattern data 38c from the portion c is N o Supplied to print heads 30 of 2, 4 and 6.
- the deformation data portion 3 6 of the print data having the deformation data portion 3 6 generated by the basic mask pattern data 3 8 a is shown in FIG. 3 0 (A) by the print heads 30 of No. 1, 3, 5 respectively. Printed as shown. Further, the deformation data portion 3 6 of the print data having the deformation data portion 3 6 generated by the developed mask pattern data 3 8 c from the portion c is the print head 3 0 of No. 2, 4, 6 Are printed as shown in FIG. 30 (B). The figure on the left side of Fig. 30 (C) shows the state where the mask pattern data 3 8 a and 3 8 c overlap, and the figure on the right side of Fig. 30 (C) shows No. 1, 2, 3 , 4, 5 and 6 The print result obtained by combining the prints of the deformation data part of the print data by the print head 30 is combined. Show. In the present invention, as described above, the print head 30 has a No. 1,
- 6 is not particularly limited to the configuration in which the deformation data portion having the same phase is supplied, and the print data having the deformation data portion generated by the mask pattern data having a different phase for each print head is supplied. Also good.
- Dot information that has been deleted and thinned out from the deformation data part generated by the mask pattern data created for each print head 30 is obtained from the complement data of the mask pattern used for each print head. Complemented.
- the conveyance of the print medium is set to be performed at equal intervals of 50 nozzles as described above, but may be changed for each conveyance. This is for printing more finely than the pitch of the nozzles, so that the interval is 50 nozzles at the same interval.
- Controller 4 determines whether or not the print data has been completed in step 9 of FIG. 2, and if it determines affirmative, it ends printing.
- the printing apparatus and the printing method according to the present invention are particularly useful when printing a high-quality image with a printer, and are used for an ink jet printer in which a head unit moves in a horizontal direction. Suitable for
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Ink Jet (AREA)
- Dot-Matrix Printers And Others (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020087017405A KR101498739B1 (ko) | 2006-03-31 | 2007-02-14 | 인쇄 장치 및 인쇄 방법 |
KR1020147030067A KR101551138B1 (ko) | 2006-03-31 | 2007-02-14 | 인쇄 장치 및 인쇄 방법 |
US12/224,998 US8284444B2 (en) | 2006-03-31 | 2007-02-14 | Apparatus and method that reduces streaking by using a deformed data portion to not array dots continuously in the main scan direction of the print head in the end portions of the sub-scan direction |
EP07706333.7A EP1944162B1 (en) | 2006-03-31 | 2007-02-14 | Printer and printing method |
CN200780012461.9A CN101415559B (zh) | 2006-03-31 | 2007-02-14 | 印刷装置以及印刷方法 |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-096307 | 2006-03-31 | ||
JP2006096307A JP4322883B2 (ja) | 2006-03-31 | 2006-03-31 | 印字装置及び印字方法 |
JP2006202701A JP4322900B2 (ja) | 2006-07-26 | 2006-07-26 | 印字装置及び印字方法 |
JP2006202700A JP4322899B2 (ja) | 2006-07-26 | 2006-07-26 | 印字装置及び印字方法 |
JP2006202699A JP4358210B2 (ja) | 2006-07-26 | 2006-07-26 | 印字装置及び印字方法 |
JP2006-202699 | 2006-07-26 | ||
JP2006-202700 | 2006-07-26 | ||
JP2006-202701 | 2006-07-26 |
Publications (1)
Publication Number | Publication Date |
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WO2007116577A1 true WO2007116577A1 (ja) | 2007-10-18 |
Family
ID=38580879
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PCT/JP2007/000085 WO2007116577A1 (ja) | 2006-03-31 | 2007-02-14 | 印字装置及び印字方法 |
Country Status (5)
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US (1) | US8284444B2 (ja) |
EP (1) | EP1944162B1 (ja) |
KR (2) | KR101551138B1 (ja) |
TW (1) | TWI435809B (ja) |
WO (1) | WO2007116577A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009119806A (ja) * | 2007-11-19 | 2009-06-04 | Mutoh Industries Ltd | 印字装置及び印字方法 |
JP2009126070A (ja) * | 2007-11-26 | 2009-06-11 | Mutoh Industries Ltd | 印字装置及び印字方法 |
US8403442B2 (en) | 2010-04-23 | 2013-03-26 | Seiko Epson Corporation | Printing device and printing method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015016671A (ja) | 2013-07-12 | 2015-01-29 | セイコーエプソン株式会社 | ドット記録装置、ドット記録方法、及び、そのためのコンピュータープログラム |
JP6197425B2 (ja) | 2013-07-12 | 2017-09-20 | セイコーエプソン株式会社 | ドット記録装置、ドット記録方法、及び、そのためのコンピュータープログラム |
EP4223543A3 (en) * | 2022-02-03 | 2023-10-18 | Ricoh Company, Ltd. | Liquid discharge apparatus |
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JP2009119806A (ja) * | 2007-11-19 | 2009-06-04 | Mutoh Industries Ltd | 印字装置及び印字方法 |
JP2009126070A (ja) * | 2007-11-26 | 2009-06-11 | Mutoh Industries Ltd | 印字装置及び印字方法 |
US8403442B2 (en) | 2010-04-23 | 2013-03-26 | Seiko Epson Corporation | Printing device and printing method |
Also Published As
Publication number | Publication date |
---|---|
KR101551138B1 (ko) | 2015-09-07 |
TW200744859A (en) | 2007-12-16 |
EP1944162B1 (en) | 2017-10-11 |
TWI435809B (zh) | 2014-05-01 |
US20090091785A1 (en) | 2009-04-09 |
EP1944162A4 (en) | 2009-11-18 |
KR20140143413A (ko) | 2014-12-16 |
KR101498739B1 (ko) | 2015-03-04 |
KR20090003154A (ko) | 2009-01-09 |
US8284444B2 (en) | 2012-10-09 |
EP1944162A1 (en) | 2008-07-16 |
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