CN108274898B

CN108274898B - Ink jet printer nozzles abnormal compensating method, apparatus, equipment and storage medium

Info

Publication number: CN108274898B
Application number: CN201810046981.1A
Authority: CN
Inventors: 陈艳; 黄中琨; 苏树波; 任建平
Original assignee: Sen Da (shenzhen) Technology Co Ltd
Current assignee: Sen Da (shenzhen) Technology Co Ltd
Priority date: 2018-01-17
Filing date: 2018-01-17
Publication date: 2019-06-04
Anticipated expiration: 2038-01-17
Also published as: CN108274898A

Abstract

The invention discloses a kind of ink jet printer nozzles abnormal compensating method, apparatus, equipment and storage mediums.The described method includes: determining abnormal nozzle location information in spray head；Print parameters are obtained, determine corresponding first print data of abnormal nozzle, according to abnormal nozzle location information and print parameters, determine the corresponding compensation nozzle location information of the first print data for compensating abnormal nozzle in spray head；According to print parameters, obtain compensation nozzle second print data corresponding in normal print, second print data includes inking data and non-inking data out, the address of the corresponding write-in of the first print data non-inking data out is generated offset data by the address for determining non-inking data out in the second print data；Export second print data goes out inking data and offset data to the compensation nozzle.According to the technical solution of the present invention, the problem of abnormal nozzle exception out of ink leads to poor quality images has not only been repaired, but also has reduced blow head maintenance cost.

Description

Ink jet printer nozzles abnormal compensating method, apparatus, equipment and storage medium

Technical field

The present invention relates to inkjet printing technology field more particularly to a kind of ink jet printer nozzles abnormal compensating methods, dress It sets, equipment and storage medium.

Background technique

Inkjet printing, which refers to, is ejected into ink droplet on print media to obtain image or text by the nozzle on spray head.It is past Duplex-scanning printing technique is the current common technology in inkjet printing field, and reciprocating scanning and printing is also referred to as more pass scannings and beats Print, more pass scanning and printings refer to that each unit of image to be printed will carry out multiple interpolation and could print completion, Mei Gedan Member is all made of multiple pixels, and each unit is made of 2 pixels if 2pass scanning and printing, and 3pass scanning and printing is then Each unit is made of 3 pixels.If Fig. 1 is the schematic diagram of 4pass scanning and printing, a certain region A of image to be printed (or Person is referred to as one block of image) need 4 coverings printing to complete, region A is made of several unit Bs, and each unit B is by 4 pictures Vegetarian refreshments composition；It is data block A1, data block A2, data block A3 and data block A4,4 numbers respectively that the data of region A, which are divided into 4 parts, It is printed respectively by the different spray nozzles of spray head according to block, the L1 of the moving direction of print media as shown in figure 1, the moving direction of spray head Z1 as shown in figure 1.For spray head in 1pass, the data block A1 of region A carries out printing completion by the part J1 of spray head；Printing is situated between Equal length of the part J1 of moving distance and spray head of the matter in 1pass on the direction L1.Spray head is in 2pass, area The data block A2 of domain A carries out printing completion by the part J2 of spray head；Print media moves equal with spray head J2 partial-length again Distance, for spray head in 3pass, the data block A3 of region A carries out printing completion by the part J3 of spray head；Print media moves again The distance equal with spray head J3 partial-length, in 4pass, the data block A4 of region A is carried out spray head by the part J4 of spray head Printing is completed.The region A of image to be printed is covered by 4 times of spray head different parts, that corresponding block figure of region A is completed in printing Picture.

But as shown in Fig. 2, inkjet printer head work a very long time after, due to ink road pollution, ink deposition, The reasons such as dust, steam easily cause spray nozzle abnormal state, these abnormal such as blockings tiltedly spray, is apprehensive, black amount deficiency feelings There is the problems such as bracing wire, blank so as to cause the image of printing, seriously affects the quality of product in condition,.

When spray nozzle abnormal state, the prior art but is being cleaned by cleaning, pressing ink and wipe to dredge nozzle In the process, it would still be possible to have Partial Blocking nozzle that can not clean out, only in the case where several nozzles, moreover it is possible to carry out reluctantly Production.But there is still a need for replacement spray heads for requiring the imaging product of high-quality accuracy of measurement；If the quantity of nozzle is more than whole The 10% of a nozzle quantity, then this spray head just has to replace.When only because small part condition of nozzles is abnormal and leads Cause entire spray head it is to be replaced fall, not only influence manufacturing schedule in this way, and easily replacement spray head also considerably increase production Cost.

Summary of the invention

The embodiment of the invention provides ink jet printer nozzles abnormal compensating method, apparatus, equipment and storage medium, to Solve the problems, such as that anomalous effects print image quality occurs in the nozzle of inkjet printer head in the prior art.

In a first aspect, the embodiment of the invention provides a kind of ink jet printer nozzles abnormal compensating method, the method packet It includes:

Determine abnormal nozzle location information in spray head；

Print parameters are obtained, corresponding first print data of the abnormal nozzle are determined, according to the abnormal nozzle position Information and the print parameters determine the corresponding compensation nozzle of the first print data that the abnormal nozzle is compensated in the spray head Location information；

According to the print parameters, the compensation nozzle second print data corresponding in normal print, institute are obtained Stating the second print data includes inking data and non-inking data out, determines the ground of non-inking data out in second print data The address of the corresponding write-in of the first print data non-inking data out is generated offset data by location.

Preferably, the print parameters include: relative displacement, nozzle quantity and the reciprocating scanning of print media and spray head Printing times.

Preferably, the offset data includes going out inking data and non-inking data out in first print data.

Preferably, which comprises the number for defining the reciprocating scanning and printing is R, and R is whole more than or equal to 2 Number, the spray head is corresponding with R group nozzle, when having one or more abnormal nozzles in the v group nozzle of the R group nozzle, from Nozzle corresponding with the abnormal nozzle position is chosen in the remaining R-1 group nozzle of the R group nozzle alternately compensates nozzle, Compensation nozzle is chosen to compensate the abnormal nozzle from the alternative compensation nozzle, each abnormal nozzle is corresponding at least one benefit Nozzle is repaid, wherein v is the integer more than or equal to 1.

Preferably, the acquisition print parameters determine corresponding first print data of the abnormal nozzle, according to described different Normal nozzle location information and the print parameters determine that the first print data that the abnormal nozzle is compensated in the spray head is corresponding Compensation nozzle location information, comprising:

If current printing contains the abnormal nozzle, it is denoted as the first abnormal nozzle；

According to the print parameters and the current corresponding degree of covering in described print media the same area, obtain current The feed distance of print media and the compensation range to first abnormal nozzle are covered, the position of first abnormal nozzle is established Set, the first print data of first abnormal nozzle print position on the print medium and first abnormal nozzle it Between mapping relations；

If the print position of first abnormal nozzle on the print medium outside the current print range of the spray head, The mapping relations are not stored；

If the print position of first abnormal nozzle on the print medium in the current print range of the spray head, The mapping relations are stored, and back up first print data.

Preferably, described according to the print parameters, the compensation nozzle is obtained in normal print corresponding second Print data, second print data include inking data and it is non-go out inking data, determine in second print data it is non-go out The address of the corresponding write-in of the first print data non-inking data out is generated offset data by the address of inking data, comprising:

It searches in the mapping relations of storage, in the print range for covering current print media, if having described the The corresponding print position of abnormal nozzle outside one abnormal nozzle is in the print range；

If so, being denoted as the second abnormal nozzle, and second abnormal nozzle is obtained according to the mapping relations and is beaten described Corresponding print position information on medium is printed, can be carried out compensation in the print range for covering current print media is calculated Nozzle is compensated, the non-of the compensation nozzle is written into the print data of second abnormal nozzle backed up in the mapping relations Data address out of ink generates offset data.

Preferably, the acquisition print parameters determine corresponding first print data of the abnormal nozzle, according to institute's rheme Confidence breath and the print parameters determine the corresponding compensation spray of the first print data that the abnormal nozzle is compensated in the spray head Mouth position information, comprising:

The number for defining the reciprocating scanning and printing is M, and M is the integer more than or equal to 2, i.e. every block of image is covered by M times Lid prints, and current printed indicia is denoted as X, and the X is referred to starting counting from entire printing playing and currently printed Number, calculates whether all abnormal nozzles fall within the M print range comprising counting in being currently printed upon one by one, Remember that one of abnormal nozzle is first jet, X time top of form is equal to the phase between preceding X print media and spray head To displacement, it is denoted as S_x；The newly-increased coverage distance of the X time printing on the print medium is denoted as h_x, the height of spray head is denoted as H, then The newly-increased coverage area of the X time printing is denoted as [S_x+H-h_x, S_x+ H], remember the first jet and in the spray head and printing Distance is Q between first nozzle on direction that the relative displacement of medium increases, then at X+0 time, X+1 Corresponding initial position is respectively as follows: S in secondary ... ,+M-1 printings of X_x, S_x+1..., S_X+M-1, then what is printed every time described beats Print newly-increased coverage area are as follows: [S_x+H-h_x, S_x+ H], the print position of the first jet is respectively as follows: S_x+ Q, S_x+1+ Q ..., S_X+M-1+ Q, if the first jet is located at outside the corresponding newly-increased coverage area in the print position on the print media, Then not storage mapping relationship；

If the first jet is located in the corresponding newly-increased coverage area in the print position on the print media, And do not repeated with stored mapping relations, then the mapping relations are stored, the mapping relations include corresponding printed indicia, First jet corresponding print position on the print medium, and take out first print data of the first jet.

When currently being printed for X time, stored mapping relations are searched for one by one, remember that one of mapping relations are corresponding different Normal nozzle is second nozzle, the print position of the second nozzle on the print medium is taken out from the mapping relations, if institute It states print position and is more than or equal to the initial position currently printed, then the mapping relations are effective, the printing position of the second nozzle The value for subtracting the initial position currently printed is set, Z is denoted as_xIf Z_xLess than the sprinkler height H, then the second nozzle is corresponding First print data can compensate for, according to each nozzle location information in the spray head, if Z_xThe corresponding nozzle in position is positive Normal nozzle, then Z_xCompensation nozzle of the corresponding nozzle in position as the second nozzle, is denoted as third nozzle, and described second is sprayed The non-data address out of ink of corresponding second print data of the third nozzle is written in first print data of mouth, obtains described The offset data of three nozzles, while removing the phase that the correspondence second nozzle of the third nozzle is had been written into memory The data that the compensation answered is fallen；

It can be continuous during the relative displacement of the print media and the spray head increases for the second nozzle The corresponding third print data of the second nozzle, the 4th print data ... N print data ... are obtained, until second spray The compensation data of mouth writes or the corresponding mapping relations of the second nozzle are out-of-date, and the third print data is second dozen Printing is surplus after the third print data is compensated according to residue data to be compensated, the 4th print data after compensated Remaining data to be compensated, the N print data is the residue data to be compensated after N-1 print data is compensated, wherein 4≤N ≤ M, N round numbers.

Second aspect, the embodiment of the invention provides a kind of ink jet printer nozzles abnormal compensating device, device includes:

Abnormal nozzle position determination module, for determining abnormal nozzle location information in spray head；

Nozzle location determining module is compensated, for obtaining print parameters, determines corresponding first printing of the abnormal nozzle Data determine according to the abnormal nozzle location information and the print parameters and compensate the abnormal nozzle in the spray head The corresponding compensation nozzle location information of first print data；

Offset data generation module, for obtaining the compensation nozzle in normal print when institute according to the print parameters Corresponding second print data, second print data include inking data and non-inking data out, determine second printing The address of the corresponding write-in of the first print data non-inking data out is generated and is compensated by the address of non-inking data out in data Data.

The third aspect, the embodiment of the invention provides a kind of ink jet printer nozzles abnormal compensating equipment, comprising: at least one A processor, at least one processor and computer program instructions stored in memory, when computer program instructions quilt The method such as first aspect in above embodiment is realized when processor executes.

Fourth aspect, the embodiment of the invention provides a kind of storage mediums, are stored thereon with computer program instructions, work as meter The method such as first aspect in above embodiment is realized when calculation machine program instruction is executed by processor.

5th aspect, the embodiment of the invention provides a kind of ink jet printing devices, comprising: control unit, ejection head unit and Nozzle compensating unit, described control unit control the nozzle compensating unit and mend to the abnormal nozzle in the ejection head unit It repays, wherein the nozzle compensating unit is ink jet printer nozzles abnormal compensating device described in above embodiment.

Ink jet printer nozzles abnormal compensating method, apparatus, equipment and storage medium provided in an embodiment of the present invention, not only The problem of abnormal nozzle exception out of ink leads to poor quality images has been repaired, and has reduced blow head maintenance cost.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention Attached drawing is briefly described, for those of ordinary skill in the art, without creative efforts, also Other drawings may be obtained according to these drawings without any creative labor.

Fig. 1 is the schematic diagram that reciprocating scanning and printing is 4pass scanning and printing in the ink-jet printer of the prior art.

Fig. 2 is the scanning and printing effect picture of Fig. 1.

Fig. 3 is the flow chart of the ink jet printer nozzles abnormal compensating method of the embodiment of the present invention.

Fig. 4 is the spray head schematic diagram of the ink jet printer nozzles abnormal compensating method of the embodiment of the present invention.

Fig. 5 is the compensation nozzle location confirmation signal of the ink jet printer nozzles abnormal compensating method of the embodiment of the present invention Figure.

Fig. 6 is the compensation schematic diagram of the ink jet printer nozzles abnormal compensating method of the embodiment of the present invention.

Fig. 7 is the compensation schematic diagram of the ink jet printer nozzles abnormal compensating method of the embodiment of the present invention.

Fig. 8 is the compensation schematic diagram of the ink jet printer nozzles abnormal compensating method of the embodiment of the present invention.

Fig. 9 is the printing effect figure of the ink jet printer nozzles abnormal compensating method of the embodiment of the present invention.

Figure 10 is the structural schematic diagram of the ink jet printer nozzles abnormal compensating device of the embodiment of the present invention.

Figure 11 is the ink jet printing process figure of the ink jet printer nozzles abnormal compensating method of the embodiment of the present invention.

Figure 12 is the structural schematic diagram of the ink jet printer nozzles abnormal compensating equipment of the embodiment of the present invention.

Specific embodiment

The feature and exemplary embodiment of various aspects of the invention is described more fully below, in order to make mesh of the invention , technical solution and advantage be more clearly understood, with reference to the accompanying drawings and embodiments, the present invention is further retouched in detail It states.It should be understood that specific embodiment described herein is only configured to explain the present invention, it is not configured as limiting the present invention. To those skilled in the art, the present invention can be real in the case where not needing some details in these details It applies.Below the description of embodiment is used for the purpose of better understanding the present invention to provide by showing example of the invention.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence " including ... ", it is not excluded that including There is also other identical elements in the process, method, article or equipment of the element.

Fig. 3 is referred to, the embodiment of the invention provides a kind of ink jet printer nozzles abnormal compensating method, this method is main It is when occurring abnormal to the nozzle of inkjet printer head, to compensate, to realize normal print image, do not influence image and beating Print the image quality on medium.The ink jet printer nozzles abnormal compensating method includes:

S10, abnormal nozzle location information in spray head is determined；

S20, print parameters are obtained, corresponding first print data of the abnormal nozzle is determined, according to the abnormal nozzle Location information and the print parameters determine the corresponding compensation of the first print data that the abnormal nozzle is compensated in the spray head Nozzle location information；

S30, according to the print parameters, obtain the compensation nozzle second printing number corresponding in normal print According to second print data includes inking data and non-inking data out, determines non-inking data out in second print data Address, by the corresponding write-in of first print data it is described it is non-go out inking data address generate offset data.

Preferably, according to the print parameters, the compensation nozzle second printing corresponding in normal print is obtained Data, second print data include inking data and non-inking data out, determine non-number out of ink in second print data According to address, by the corresponding write-in of first print data it is described it is non-go out inking data address generate offset data, comprising:

If so, being denoted as the second abnormal nozzle, and second abnormal nozzle is obtained according to the mapping relations and is beaten described Corresponding print position information on medium is printed, the compensation of can be carried out compensation in the range of covering current print media is calculated The non-out of ink of the compensation nozzle is written in the print data of second abnormal nozzle backed up in the mapping relations by nozzle Data address generates offset data.

The number for defining the reciprocating scanning and printing is M, and M is the integer more than or equal to 2, i.e. every block of image is covered by M times Lid prints, and current printed indicia is denoted as X, and the X is referred to starting counting from entire printing playing and currently printed Number, calculates whether all abnormal nozzles fall within the M print range comprising counting in being currently printed upon one by one, Remember that one of abnormal nozzle is first jet, X time top of form is equal to the phase between preceding X print media and spray head To displacement, it is denoted as S_x, the newly-increased coverage distance of the X time printing on the print medium is denoted as h_x, the height of spray head is denoted as H, then The newly-increased coverage area of the X time printing is denoted as [S_x+H-h_x, S_x+ H], remember the first jet and in the spray head and printing Distance is Q between first nozzle on direction that the relative displacement of medium increases, then at X+0 time, X+1 Corresponding initial position is respectively as follows: S in secondary ... ,+M-1 printings of X_x, S_x+1..., S_X+M-1, then what is printed every time is described new Increase coverage area are as follows: [S_x+H-h_x, S_x+ H], the print position of the first jet is respectively as follows: S_x+ Q, S_x+1+ Q ..., S_X+M-1+ Q, If the first jet is located at outside the corresponding newly-increased coverage area in the print position on the print media, do not store The mapping relations；

When currently being printed for X time, stored mapping relations are searched for one by one, remember that one of mapping relations are corresponding different Normal nozzle is second nozzle, the print position of the second nozzle on the print medium is taken out from the mapping relations, if institute It states print position and is more than or equal to the initial position currently printed, then the mapping relations are effective, the printing position of the second nozzle The value for subtracting the initial position currently printed is set, Z is denoted as_xIf Z_xLess than the sprinkler height H, then the second nozzle is corresponding First print data can compensate for, according to each nozzle location information in the spray head, if Z_xThe corresponding nozzle in position is positive Normal nozzle, then Z_xCompensation nozzle of the corresponding nozzle in position as second nozzle, is denoted as third nozzle, by the second nozzle The non-data address out of ink of corresponding second print data of the third nozzle is written in first print data, obtains the third spray The offset data of mouth, while removing the corresponding compensation that the correspondence second nozzle of the third nozzle is had been written into memory The data fallen；

It can be continuous during the relative displacement of the print media and the spray head increases for the second nozzle The corresponding third print data of the second nozzle, the 4th print data ... N print data ... are obtained, until second spray The compensation data of mouth writes or the corresponding mapping relations of the second nozzle are out-of-date, and the third print data is second dozen Printing according to residue data to be compensated, the 4th print data after compensated be after third print data is compensated it is remaining to Offset data, the N print data is the residue data to be compensated after N-1 print data is compensated, wherein 4≤N≤M, N Round numbers.

Specifically, the location information for determining abnormal nozzle in spray head determines each spray head by printing head state diagram The specific location of abnormal nozzle, the spray head state diagram are to set for determining each abnormal nozzle location information in each spray head One test chart of meter.Referring to Fig. 4, in the present embodiment, the spray head 400 includes 4 channels, respectively first passage 410, second channel 420, third channel 430 and fourth lane 440, the color of each pass print one kind, if each channel has A dry nozzle, it is assumed that there is g nozzle in each channel, when there is not abnormal nozzle phenomenon in spray head 400, then the state diagram that prints It is made of 4g line segment, each line segment has a station location marker, and each line segment is formed by a nozzle separate printed；When When there is abnormal nozzle in spray head 400, the state diagram of printing just will appear apparent missing line segment situation, at this moment according to missing line Section station location marker it is known that abnormal nozzle more specific location information.In another embodiment, the spray head 400 only includes One channel is equipped with multiple spray heads 400, a kind of each color of nozzle printing in printer.In another embodiment, multiple sprays One channel of head composition, a kind of color of the pass print.Wherein, it can also detect in spray head whether have abnormal spray by sensor Mouth is not specifically limited herein.

Print parameters are obtained, determine corresponding first print data of the abnormal nozzle.According to the position of the abnormal nozzle Set corresponding first print data of abnormal nozzle described in a certain print area of information extraction print media.

If first print data are as follows:

SrcData₁[n]=and S1, S2, S3, S4 ... .., Sn }

Wherein n is SrcData_xData amount check, S be specific data information.

Preferably, the print parameters include: relative displacement, nozzle quantity and the reciprocating scanning of print media and spray head Printing times.The relative displacement is also referred to as paper feed distance in the present embodiment, the nozzle quantity is a certain channel The reciprocating scanning and printing is calculated according to the parameter of the required precision of image to be printed and printing device in nozzle quantity Number and the paper feed distance.

The print parameters further include the precision of spray head quantity, single spray head, the horizontal raster precision of printing device.

The number of the reciprocating scanning and printing is obtained by following formula:

Wherein, y is the number of the reciprocating scanning and printing, and x1 is precision of the image to be printed along page orientation, and x2 is Image to be printed vertically with the precision of page orientation, x3 be single spray head precision, x4 be horizontal raster precision, y, x1, x2, X3, x4 are greater than zero natural number.

Relative displacement (or each paper feed distance) is obtained by following formula:

Wherein, z is the paper feed distance, x₅For the nozzle number in a certain channel, y is time of the reciprocating scanning and printing Number, z, x₅All it is greater than zero natural number.

According to the abnormal nozzle location information and the print parameters, determines and compensate the abnormal nozzle in the spray head The corresponding compensation nozzle location information of corresponding first print data includes: to define the number of the reciprocating scanning and printing to be R, R are integer more than or equal to 2, and the spray head is corresponding with R group nozzle, when have in the v group nozzle of the R group nozzle one or When multiple abnormal nozzles, nozzle corresponding with the abnormal nozzle position is chosen from the remaining R-1 group nozzle of the R group nozzle Nozzle is alternately compensated, compensation nozzle is chosen to compensate the abnormal nozzle, each abnormal spray from the alternative compensation nozzle Mouth corresponds at least one compensation nozzle, and wherein v is the integer more than or equal to 1.

In the present embodiment, the compensation nozzle and the abnormal nozzle are located on same channel, and the channel is corresponding Nozzle by page orientation be split P group be respectively the 1st group of nozzle, the 2nd group of nozzle, the 3rd group of nozzle ... P-1 group nozzle, P group nozzle, the nozzle number that each group of nozzle is included are identical；Each group have T nozzle according to page orientation be respectively the 1st spray Mouth, the 2nd nozzle, the 3rd nozzle ... T-1 nozzle, T nozzle, T are the natural number greater than 0.Each described abnormal nozzle has The P-1 compensation nozzles, the compensation nozzle and the abnormal nozzle be not at same group, the compensation nozzle and the exception Nozzle is all e nozzle, and e is the natural number greater than 0 and e is less than or equal to T.

Such as Fig. 5, the spray head includes that 4 channels are respectively black channel C1, cyan channel C 2, carmetta channel C 3, Huang Chrominance channel C4, there are 16 nozzles in each channel, and by taking 4pass is printed as an example, then the nozzle of black channel C1 is divided equally into 4 groups and is respectively 1st group of a1, the 2nd group of a2, the 3rd group of a3 and the 4th group of a4, each group have 4 nozzles by page orientation L2 be respectively No. 1 nozzle, No. 2 nozzle, No. 3 nozzle and No. 4 nozzle, the 2nd of No. 1 nozzle and the 4th group of a4 that the abnormal nozzle is the 1st group of a1 the Number nozzle, then the compensation nozzle location of the 1st group of a1 No. 1 nozzle has No. 1 nozzle of the 2nd group of a2, No. 1 of the 3rd group of a3 No. 1 nozzle of nozzle and the 4th group of a4, the compensation nozzle location of No. 2 nozzle of the 4th group of a4 have No. 2 spray of the 1st group of a1 No. 2 nozzle of mouth, No. 2 nozzle of the 2nd group of a2 and the 3rd group of a3.

There may be multiple abnormal nozzles in a channel of spray head, the compensation method of all abnormal nozzles is all identical , the specific compensation method of the image data of a certain print area will be described in detail by taking an abnormal nozzle as an example below, specifically Compensation method is as follows:

According to the print parameters, the compensation nozzle second print data corresponding in normal print, institute are obtained Stating the second print data includes inking data and non-inking data out, specifically: the image data for defining a certain print area includes P Part data block (P is the natural number greater than 0), the P parts of data block is respectively the 1st data block, the 2nd according to the tandem of printing Data block ... P-1 data block, P data block, then d data block is printed by d group nozzle, and d is the nature greater than 0 It counts and d is less than or equal to P.The compensation is extracted from the P parts of compensation nozzle data blocks according to the compensation nozzle location information Corresponding second print data of nozzle.

The address for determining non-inking data out in second print data, will be described in the corresponding write-in of first print data The address of non-inking data out generates offset data, specific as follows:

According to second print data and first print data in accordance with the following steps to i-th group on a certain channel Corresponding first print data of abnormal nozzle described in e compensates to obtain the practical print data of each compensation nozzle, i For the natural number greater than 0 and i is less than or equal to P, and the practical print data includes the offset data and the second print data Inking data out:

S1, judge whether compensation nozzle described in the 1st group of e is abnormal, if normally, extracting e institute from the 1st data block Corresponding second print data of compensation nozzle is stated, second print data is carried out with first print data or operation obtains To the practical print data for compensating nozzle described in the 1st group of e, while the first print data of update obtains the printing of the second abnormal nozzle Data.Judge whether the data amount check in the second abnormal nozzle print data is zero, terminates to compensate if it is zero；If Be not zero or the 1st group of e described in compensation nozzle enter in next step.

S2, judge whether compensation nozzle described in the 2nd group of e is abnormal, if normally, extracting e institute from the 2nd data block Corresponding second print data of compensation nozzle is stated, the second print data and the second abnormal nozzle print data are carried out or transported The practical print data for obtaining compensating nozzle described in the 2nd group of e is calculated, while updating the second abnormal nozzle print data and obtaining third Abnormal nozzle print data.Judge whether the data amount check in the third abnormal nozzle print data is zero, if it is zero Terminate compensation；If be not zero or the 2nd group of e described in compensation nozzle enter in next step.

S3, judge whether compensation nozzle described in the 3rd group of e is abnormal, if normally, extracting e institute from the 3rd data block Corresponding second print data of compensation nozzle is stated, the second print data and the third abnormal nozzle print data are carried out or transported It calculates and obtains the practical print data of the 3rd group of e compensation nozzle, while updating third abnormal nozzle print data and obtaining the 4th exception Nozzle print data.Judge whether the data amount check in the 4th abnormal nozzle print data is zero, is terminated if it is zero Compensation；If be not zero or the 3rd group of e described in compensation nozzle enter in next step.

……

Sp, judge whether compensation nozzle described in P group e is abnormal, if normally, e institute is extracted from P data block State corresponding second print data of compensation nozzle, the second print data and the P+1 abnormal nozzle print data are carried out or Operation obtains the practical print data that nozzle is compensated described in P group e, and compensation terminates, by without compensation nozzle institute Terminated with compensation.

If corresponding second print data of compensation nozzle described in the m group e are as follows:

DstData_m[n]=and D1, D2, D3, D4 ... .., Dn }

Wherein n is DstData_mData amount check, D be specific data information, m be it is described compensation nozzle where group number.

In the present embodiment, for DstData_mIn some position k, it is specified that there are DstData_m(k)=0, then it represents that beat The compensation nozzle is not out of ink in the position K when print, DstData_mIt (k)=0 is exactly compensation nozzle corresponding the described in m group e In two print datas it is non-go out inking data, then SrcData_xIn the data of K can use DstData_mIn the position of K mended It repays.Wherein, DstData_m(k)=0 it is a kind of regulation, is limited without specific value, equally also can specify that DstData_m(k) =5, the compensation nozzle is not out of ink in the position K when representing printing, for DstData_m(k) it is equal to the compensation nozzle of how many when It is not out of ink without limitation in the position K.

A kind of new algorithm is defined to be denoted as

Wherein, α indicates that a numerical value, β indicate another numerical value,Indicate a kind of operation, when β is 0, α passes through with βValue after operation is α, and when β value is not 0, α passes through with βValue after operation is β.

Successively to SrcData₁And DstData_mIn data carry outAs a result operation is assigned to DstData_m’, i.e.,

Wherein, DstData_m’It is the corresponding practical print data of compensation nozzle described in m group e.

It is located at SrcData₁In there are n data to need to compensate, and DstData_mIn have n₁A non-inking data out can compensate SrcData₁In data, then from SrcData₁In delete out and DstData_mMiddle n₁The corresponding data in address of a non-number out of ink obtain To the second abnormal nozzle print data SrcData₂:

SrcData₂[n-n1]=and D1, D2, D3, D4 ... .., D (n-n1) }

If n-n1=0, then it represents that SrcData₁In data compensated, be not handled by if there is remainder Then its practical print data is saved compensation nozzle by the second print data；The compensation being not handled by if there is no remainder Nozzle then shows that the data of abnormal nozzle position can just have been compensated.

If n-n1 ≠ 0, then it represents that SrcData₁In data be not compensated for, be not handled by if there is no remainder Nozzle is compensated, then SrcData₂In data no longer handled；

If there is the compensation nozzle that is not handled by of remainder, then extracts and compensate nozzle corresponding the described in m+1 group e Two print data DstData_m+1, by DstData_m+1And SrcData₂In data carry outAs a result operation is assigned to DstData_m+1’, i.e.,

Wherein, DstData_m+1’It is the corresponding practical print data of compensation nozzle in m+1 group.

It is located at SrcData₂In there are n-n1 data to need to compensate, and DstData_m+1In have n₂A non-inking data out can be mended Repay SrcData₂In data, then from SrcData_x+1Middle deletion and DstData_m+1Middle n₂The address of a non-inking data out is corresponding Data obtain third abnormal nozzle print data SrcData₃:

SrcData₃[n-n1-n2]=and D1, D2, D3, D4 ... .., D (n-n1-n2) }

The above judgement is repeated, until the data amount check in abnormal nozzle print data is zero or there is no do not carry out at data Until the compensation nozzle of reason.

Such as Fig. 6, by taking image to be printed is completed using 2pass printing as an example, when the print data of a certain print area R is divided At the 1st print data block R1 and the 2nd print data block R2, L3 in page orientation such as figure, then the 1st printing number of 1pass printing According to block R1,2pass prints the 2nd print data block R2, then the nozzle in a certain channel is split 2 groups, respectively the 1st group of b1 and 2nd group of b2 sets abnormal nozzle position as corresponding 1st group of the 3rd nozzle of b1, then the compensation nozzle location of the abnormal nozzle only has 2nd group of the 3rd nozzle of the b2 and compensation nozzle is normal extracts the corresponding first printing number of the 3rd abnormal nozzle in the 1st data block R1 According to being denoted as SrcData₁, corresponding second print data of the 3rd compensation nozzle is denoted as DstData in the 2nd data block R2₂, will SrcData₁And DstData₂In data carry outOperation, the practical print data for obtaining the 2nd group of compensation nozzle of b2 the 3rd are denoted as DstData_2’, i.e.,

SrcData₁[20]=S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20 }

DstData₂[20]={ 0,1,2,0,3,2,3,0,1,2,0,0,1,3,2,0,3,0,2,1 }

DstData₂In it is non-go out inking data have: DstData₂[1]=0, DstData₂[4]=0, DstData₂[8]=0, DstData₂[11]=0, DstData₂[12]=0, DstData₂[16]=0, DstData₂[18]=0.

By the SrcData₁With the DstData₂In data carry out following operation:

It obtains the 2nd group of b2 the 3rd to compensate the practical print data of nozzle being DstData by the above operation_2’

DstData_2‘[20]={ S1,1,2, S4,3,2,3, S8,1,2, S11, S12,1,3,2, S16,3, S18,2,1 }

The second abnormal nozzle print data are as follows:

SrcData₂[13]={ S2, S3, S5, S6, S7, S9, S10, S13, S14, S15, S17, S19, S20 } is described SrcData₂In data amount check be not 0, but without the compensation nozzle, compensation terminates.

When printing the 1st data block R2, the 2nd group of the 3rd nozzle of b2 presses DstData_2’In data printed, then the 1st group of b1 Partial data in corresponding first print data of 3rd nozzle is just filled into corresponding second print data of the 2nd group of the 3rd nozzle of b2 In obtain third reality print data, the partial data in the 1st group of the 3rd nozzle of b1 just by the 2nd group of the 3rd nozzle of b2 carried out compensation beat Print solves the problems, such as due to spray nozzle abnormal state and the image of printing is made to occur breaking or blank.

Such as Fig. 7, by taking image to be printed is completed using 4pass printing as an example, when the print data F of a certain print area is divided At the 1st print data block F1, the 2nd print data block F2, the 3rd print data block F3 and the 4th print data block F4, page orientation is such as L4 in figure, if 1pass prints the 1st print data block F1,2pass prints the 2nd print data block F2,3pass printing 3rd print data block F3,4pass print the 4th print data block F4, then the nozzle in a certain channel is split 4 groups and is respectively 1st group of c1, the 2nd group of c2, the 3rd group of c3 and the 4th group of c4, set abnormal nozzle position as the 2nd group of the 1st nozzle of c2, then the exception The compensation nozzle location of nozzle has the 1st group of the 1st nozzle of c1, the 3rd group of the 1st nozzle of c3 and the 4th group of the 1st nozzle of c4, extracts the 2nd data Corresponding first print data of the 1st nozzle is denoted as SrcData in block F2₁, the 1st nozzle corresponding second in the 1st data block F1 Print data is denoted as DstData₁, corresponding second print data of the 1st nozzle in the 3rd data block F3 is denoted as DstData₃, the 4th Corresponding second print data of the 1st nozzle in data block F4 is denoted as DstData₄, by SrcData₁And DstData₁In data It carries outOperation, the practical print data for obtaining the 1st group of the 1st nozzle of c1 is DstData_1’, i.e.,

It is located at SrcData₁In there are n data to need to compensate, and DstData₁In have n₁A non-inking data out can compensate SrcData₁In data, then from SrcData₁In delete out and DstData₁Middle n₂The corresponding data in address of a non-inking data out Obtain the second abnormal nozzle print data SrcData₂:

SrcData₂[n-n1]=and D1, D2, D3, D4 ... .., D (n-n1) }

If n-n1=0, then it represents that SrcData₁In data compensated, DstData₃And DstData₄In number According to not needing to handle direct preservation, the 1st group of the 1st nozzle of c1 presses DstData when printing the 1st data block F1_1’Data-printing, printing the The 3rd group of the 1st nozzle of c3 presses DstData when 3 data block F3₃Data-printing, the 4th group of the 1st nozzle of c4 is pressed when printing the 4th data block F4 DstData₄Data-printing.

If n-n1 ≠ 0, the practical print data of the 3rd the 3rd group of the 1st nozzle of c3 of data block F3 is DstData_3’, i.e.,

It is located at SrcData₂In there are n-n1 data to need to compensate, and DstData₃In have n₂A non-inking data out can be mended Repay SrcData₂In data, then from SrcData₂In delete out and DstData₃Middle n₂The corresponding number in address of a non-inking data out According to obtaining third abnormal nozzle print data SrcData₃:

SrcData₃[n-n1-n2]=and D1, D2, D3, D4 ... .., D (n-n1-n2) }

If n-n1-n2=0, then it represents that SrcData₂In data compensated, DstData₄In data do not need Processing directly saves, and the 1st group of the 1st nozzle of c1 presses DstData when printing the 1st data block F1_1’Data-printing prints the 3rd data block The 3rd group of the 1st nozzle of c3 presses DstData when F3_3’Data-printing, the 4th group of the 1st nozzle of c4 is pressed when printing the 4th data block F4 DstData₄Data-printing.

If n-n1-n2 ≠ 0, the practical print data of the 4th the 4th group of the 1st nozzle of c4 of data block F4 is DstData_4’, i.e.,

It is located at SrcData₃In there are n-n1-n2 data to need to compensate, and DstData₄In have n₃It is a it is non-go out inking data can be with Compensate SrcData₃In data, then from SrcData₃In delete out and DstData₄Middle n₃The address of a non-inking data out is corresponding Data obtain the 4th abnormal nozzle print data SrcData₄:

SrcData₄[n-n1-n2-n3]=and D1, D2, D3, D4 ... .., D (n-n1-n2-n3) }

If n-n1-n2-n3=0, then it represents that SrcData₂In data compensated, print the 1st data block F1 when 1st group of the 1st nozzle of c1 presses DstData_1’Data-printing, the 3rd group of the 1st nozzle of c3 presses DstData when printing the 3rd data block F3_3’Number According to printing, the 4th group of the 1st nozzle of c4 presses DstData when printing the 4th data block F4_4’Data-printing.

If n-n1-n2-n3 ≠ 0, SrcData₄It is no longer handled, the 1st group of c1 the 1st sprays when printing the 1st data block F1 Mouth presses DstData_1’Data-printing, the 3rd group of the 1st nozzle of c3 presses DstData when printing the 3rd data block F3_3’Data-printing, printing The 4th group of the 1st nozzle of c4 presses DstData when the 4th data block F4_4’Data-printing.

In another embodiment, the address of the corresponding write-in of the first print data non-inking data out is generated into compensation Data include the following steps:

S100, according to the print parameters and the current corresponding degree of covering in described print media the same area, obtain The feed distance of current covering print media and the compensation range to first abnormal nozzle are taken, the described first abnormal spray is established Mapping between the position of mouth, first abnormal nozzle print position on the print medium and the first print data is closed System；

S200, the print position of first the abnormal nozzle on the print medium print range current in the spray head It is interior, then the mapping relations are stored, and take out backup first print data；

In the stored mapping relations of S300, search, all exceptions in the print range for covering current print media The corresponding print position of nozzle, is denoted as the second abnormal nozzle；

S400, the second abnormal nozzle corresponding printing on the print media is obtained according to the mapping relations Location information calculates the compensation nozzle of can be carried out compensation in current covering print range, will back up in the mapping relations Second abnormal nozzle print data write-in compensation nozzle non-data address out of ink.

The establishment step of the mapping relations is as follows:

The number for defining the reciprocating scanning and printing is M, and M is the integer more than or equal to 2, i.e. every block of image is covered by M times Lid prints, and current printed indicia is denoted as X, and the X is referred to starting counting from entire printing playing and currently printed Number, calculates whether all abnormal nozzles fall within the M print range comprising counting in being currently printed upon one by one. Remember that one of abnormal nozzle is first jet, the X time top of form is equal between preceding X print media and spray head Relative displacement, be denoted as S_x；The newly-increased coverage distance of the X time printing on the print medium is denoted as h_x, the height of spray head is denoted as H, then the X time prints newly-increased coverage area and is denoted as [S_x+H-h_x, S_x+ H], remember the first jet and the spray head and is beating Printing distance between first nozzle on the direction that the relative displacement of medium increases is Q, then at X+0 time, X+1 Corresponding initial position is respectively as follows: S in secondary ... ,+M-1 printings of X_x, S_x+1..., S_X+M-1, then it is described print every time it is new Increase coverage area are as follows: [S_x+H-h_x, S_x+ H], the print position of the first jet is respectively as follows: S_x+ Q, S_x+1+ Q ..., S_X+M-1+ Q, If the first jet is located at outside the corresponding newly-increased coverage area in the print position on the print media, do not store The mapping relations；If print position of the first jet on the print media is located at the corresponding newly-increased covering model of printing It in enclosing, and is not repeated with stored mapping relations, then stores the mapping relations, the mapping relations include corresponding printing rope Draw, first jet corresponds to print position, and takes out first print data for backing up the first jet.Referring to Fig. 8, In the present embodiment, if sprinkler height is that 12 (numerical value here is provided to convenient for illustrating technical solution of the present invention, these integers Value is set under same reference standard, and on the basis of those skilled in the art are disclosed in the present embodiment, being can be complete Realize technical solution of the present invention, furthermore round numbers here is also corresponding 12 nozzles for convenience of description), reciprocating scanning The number of printing is 4 times, i.e., every piece of original image needs the printing of 4 component of degree n n to cover, and every component of degree n n printing coverage distance is 3 (a quarter of corresponding sprinkler height, coverage distance of the spray head in the same area when every pass is printed), currently beats for 1pass When print, 1pass top of form is 0, then it is [9,12] that 1pass, which prints newly-increased coverage area,；First jet in institute Stating distance between first nozzle on the direction of the relative displacement increase of spray head and print media is 4 (i.e. from start bit Set start of calculation the 4th nozzle occur it is abnormal), first jet is only this nozzle in abnormal nozzle and the spray head, if the The moving distance of print media is 3 after 1pass printing, and the moving distance of print media is 3 after 2pass printing, and 3pass is beaten The moving distance of print media is 3 after print, and the moving distance of print media is 3 after 4pass printing.The when 1pass is printed The print position of one nozzle on the print medium is 4, is not printing newly-increased coverage area [9,12], does not save this mapping and closes System；The print position of first jet on the print medium is 7 when 2pass is printed, and is not printing newly-increased coverage area [9,12], This mapping relations is not saved；The print position of first jet on the print medium is 10 when 3pass is printed, newly-increased in printing Coverage area [9,12] saves mapping relations and is denoted as the first mapping relations, including printed indicia 3, the corresponding printing position of first jet 10 are set, the print data of backup first jet is taken out；The print position of first jet on the print medium is when 4pass is printed 13, newly-increased coverage area [9,12] are not being printed, is not saving mapping relations.

It is according to the print parameters and mapping relations established above, the corresponding write-in of first print data is described non- Specific step is as follows for the address generation offset data of inking data out:

When current X time printing, stored mapping relations are searched for one by one, remember the corresponding exception of one of mapping relations Nozzle is second nozzle, and the second nozzle print position is taken out from the mapping relations, is worked as if print position is more than or equal to The initial position of preceding printing, then the mapping relations are effective, and the print position of the second nozzle subtracts the starting currently printed The value of position, is denoted as Z_xIf Z_xLess than the sprinkler height H, then corresponding first print data of the second nozzle can mend It repays, i.e., the print wire lacked extremely is fallen within the scope of spray head.According to each nozzle location information in the spray head, if Z_xPosition Corresponding nozzle is normal nozzles, then Z_xCompensation nozzle of the corresponding nozzle in position as second nozzle, is denoted as third nozzle, will The non-data address out of ink of corresponding second print data of the third nozzle is written in first print data of the second nozzle, The offset data of the third nozzle is obtained, the corresponding print data of third nozzle includes its original inking data out and writes The offset data entered；It removes simultaneously and has been written into the corresponding compensation of the second nozzle of the third nozzle in memory and fall Data；For the second nozzle, during the relative displacement of the print media and the spray head increases, can be continuous To the corresponding third print data of the second nozzle, the 4th print data ... N print data ..., until the second nozzle Compensation data write or the corresponding mapping relations of second nozzle are out-of-date, the third print data is the second print data Residue data to be compensated, the 4th print data after compensated are the residue numbers to be compensated after third print data is compensated According to the N print data is the residue data to be compensated after N-1 print data is compensated, wherein 4≤N≤M, N are rounded Number.

The first mapping relations correspondence has been obtained above and has been beaten according to first mapping relations please continue to refer to Fig. 8 The print position for printing medium is 10.

When currently printing to 1pass printing, top of form 0, first mapping relations correspond to print position The value for subtracting current top of form is 10, is less than the sprinkler height 12, and in the opposite of the spray head and print media Being displaced the nozzle that distance is 10 between first nozzle on the direction increased is normal nozzles, that is, has found described first First mapping relations are corresponded to print data and the non-of the first compensation nozzle are written by the first compensation nozzle of mapping relations Address out of ink obtains the offset data of the first compensation nozzle, while disposing the corresponding printing number of first mapping relations According to the part data fallen in this printing by compensation, data after the first time compensation of first mapping relations are obtained；

When currently printing to 2pass printing, top of form 3, first mapping relations correspond to print position The value for subtracting current top of form is 7, is less than the sprinkler height 12, and in the opposite position of the spray head and print media Moving the nozzle that distance is 7 between first nozzle on the direction increased is normal nozzles, that is, has found described first and reflect Data after first time compensation, are written the non-address out of ink of the second compensation nozzle by the second compensation nozzle for penetrating relationship, The offset data of the second compensation nozzle is obtained, while data are mended in this printing after disposing first time compensation The part data repaid obtain data after second of compensation of first jet；

When currently printing to 3pass printing, top of form 6, first mapping relations correspond to print position The value for subtracting current top of form is 4, is less than the sprinkler height 12, and in the opposite position of the spray head and print media Moving distance is 4 between first nozzle nozzle on the direction increased is abnormal nozzle, then this can not be to described the One mapping relations compensate；

When currently printing to 4pass printing, top of form 9, first mapping relations correspond to print position The value for subtracting current top of form is 1, is less than the sprinkler height 12, and in the opposite position of the spray head and print media Moving the nozzle that distance is 1 between first nozzle on the direction increased is normal nozzles, that is, has found described first and reflect The non-of the third compensation nozzle is written in data after second of compensation of the first jet by the third compensation nozzle for penetrating relationship Address out of ink obtains the offset data of third compensation nozzle, at the same dispose described second compensate after data at this The part data fallen in printing by compensation obtain data after the third time compensation of first mapping relations；

When currently printing to 5pass printing, top of form 12, it is small that first jet corresponds to print position 10 In current top of form 12, then since 5pass printing, first mapping relations can not be compensated, Then stop compensating.

Ink jet printer nozzles abnormal compensating method provided by the present invention is described in detail above, as Fig. 9 is Using the effect picture of above-mentioned technical proposal of the invention, as can be seen from Figure 9, after being compensated to abnormal nozzle, printing effect Fruit is almost identical as the normal effect out of ink of whole nozzles of spray head, is not in that broken string or blank in background technique is asked Topic.Without changing spray head easily because of the problem of nozzle, the cost of ink jet printing device is greatly saved.

Referring to Fig. 10, the embodiment of the invention provides a kind of ink jet printer nozzles abnormal compensating device, described device Include:

Abnormal nozzle position determination module 10, for determining abnormal nozzle location information in spray head；

It compensates nozzle location determining module 20 and determines that the abnormal nozzle is first dozen corresponding for obtaining print parameters Printing evidence determines according to the abnormal nozzle location information and the print parameters and compensates the abnormal nozzle in the spray head The corresponding compensation nozzle location information of the first print data；

Offset data generation module 30, for obtaining the compensation nozzle in normal print according to the print parameters The second corresponding print data, second print data include inking data and non-inking data out, determine described second dozen The address of the corresponding write-in of the first print data non-inking data out is generated benefit by the address of printing non-inking data out in Repay data.

Preferably, the phase that the print parameters in nozzle location determining module 20 include: print media with spray head is compensated To displacement, nozzle quantity and reciprocating scanning and printing number.

Preferably, it compensates in nozzle location determining module 20 further include: the number for defining the reciprocating scanning and printing is R, R are integer more than or equal to 2, and the spray head is corresponding with R group nozzle, when have in the v group nozzle of the R group nozzle one or When multiple abnormal nozzles, nozzle corresponding with the abnormal nozzle position is chosen from the remaining R-1 group nozzle of the R group nozzle Nozzle is alternately compensated, compensation nozzle is chosen to compensate the abnormal nozzle, each abnormal spray from the alternative compensation nozzle Mouth corresponds at least one compensation nozzle, and wherein v is the integer more than or equal to 1.

Preferably, compensating in nozzle location determining module 20 further includes that mapping relations establish unit, and the mapping relations are built Vertical unit is used for:

According to the print parameters and the current corresponding degree of covering in described print media the same area, obtain current The feed distance of print media and the compensation range to first abnormal nozzle are covered, the position of first abnormal nozzle is established It sets, the mapping relations between first abnormal nozzle print position on the print medium and the first print data；

If the print position of first abnormal nozzle on the print medium in the current print range of the spray head, The mapping relations are stored, and store first print data to the non-data address out of ink for compensating nozzle.

Preferably, compensating in nozzle location determining module 20 further includes compensation data unit, and the compensation data unit is used In:

It searches in stored mapping relations, in the print range for covering current print media, if having abnormal nozzle Corresponding print position is denoted as the second abnormal nozzle in the print range；

If so, then being obtained according to the mapping relations, second abnormal nozzle is corresponding on the print media to be beaten Location information is printed, the compensation nozzle of can be carried out compensation in current covering print range is calculated, the second abnormal nozzle of backup First print data, and the non-data address out of ink of compensation nozzle is written.

In one embodiment, the mapping relations are established unit and are used for: defining the number of the reciprocating scanning and printing For M, M is the integer more than or equal to 2, i.e. every block of image is printed by M covering, and current printed indicia is denoted as X, and the X refers to Be to start counting the number for playing and currently having printed from entire printing, calculate whether all abnormal nozzles fall in from packet one by one Within the M print range counted in being currently printed upon, remember that one of abnormal nozzle is first jet, the X Secondary top of form is equal to the relative displacement between preceding X print media and spray head, is denoted as S_x；The X time is printed upon Newly-increased coverage distance on print medium is denoted as h_x, the height of spray head is denoted as H, then the X time prints newly-increased coverage area and is denoted as [S_x+H-h_x, S_x+ H], remember the first jet and the on the direction that the relative displacement of the spray head and print media increases Distance is Q between one nozzle, then at X+0 time, corresponding initial position in X+1 time ... ,+M-1 printings of X It is respectively as follows: S_x, S_x+1..., S_X+M-1, then the newly-increased coverage area that prints every time are as follows: [S_x+H-h_x, S_x+ H], first spray The print position of mouth is respectively as follows: S_x+ Q, S_x+1+ Q ..., S_X+M-1+ Q, if printing of the first jet on the print media Position is located at outside the corresponding newly-increased coverage area, then not storage mapping relationship；

In one embodiment, the compensation data unit searches for stored mapping for current X time printing one by one Relationship remembers that the corresponding abnormal nozzle of one of mapping relations is second nozzle, described second is taken out from the mapping relations The print position of nozzle on the print medium, it is described to reflect if the print position is more than or equal to the initial position currently printed Penetrate that relationship is effective, the print position of the second nozzle subtracts the value of the initial position currently printed, is denoted as Z_xIf Z_xLess than institute Sprinkler height H is stated, then corresponding first print data of the second nozzle can compensate for, according to each nozzle in the spray head Location information, if Z_xThe corresponding nozzle in position is normal nozzles, then Z_xCompensation of the corresponding nozzle in position as the second nozzle Nozzle is denoted as third nozzle, and corresponding second printing of the third nozzle is written in the first print data of the second nozzle The non-data address out of ink of data, obtains the offset data of the third nozzle, while removing and having been written into institute in memory State the data that the corresponding compensation of the correspondence second nozzle of third nozzle is fallen；

It can be continuous during the relative displacement of the print media and the spray head increases for the second nozzle The corresponding third print data of the second nozzle, the 4th print data ... N print data ... are obtained, until second spray The compensation data of mouth writes or the corresponding mapping relations of the second nozzle are out-of-date, and the third print data is second dozen Printing is surplus after the third print data is compensated according to residue data to be compensated, the 4th print data after compensated Remaining data to be compensated, the N print data is the residue data to be compensated after the K-1 print data is compensated, wherein 4 ≤ N≤M, K round numbers.

Figure 11 is please referred to, the embodiment of the invention provides a kind of ink jet printing devices, comprising: control unit 210, spray head list Member 221 and nozzle compensating unit 222, described control unit 210 control the nozzle compensating unit 222 to the ejection head unit Abnormal nozzle in 221 compensates, wherein the nozzle compensating unit 222 is that ink jet printer nozzles described in Figure 10 are different Normal compensation device.Print data is inputted the control unit 210 of ink jet printing device 200, control unit by data input cell 100 210 receive print data control ejection head unit 221 carries out ink-jet on print media 300.However, working as inkjet printer head work After making a very long time, due to ink road pollution, ink deposition, dust, steam etc., easily cause spray nozzle state different Often, there is the problems such as bracing wire, blank in these Abnormal Blockings, the image that tiltedly spray, apprehensive, black amount deficiency etc. will lead to printing.In order to Solve the problems such as bracing wire, blank occur due to the extremely caused image of condition of nozzles, the present invention is set in ink jet printing device 200 The nozzle compensating unit 222 compensated for the abnormal nozzle to ejection head unit 221 is set, for compensating asking for abnormal nozzle Topic.

In addition, the ink jet printer nozzles abnormal compensating method in conjunction with Fig. 3 embodiment of the present invention described can be by ink-jet Printer nozzle abnormal compensating equipment is realized.Figure 12 shows ink jet printer nozzles provided in an embodiment of the present invention and mends extremely Repay the hardware structural diagram of equipment.

Ink jet printer nozzles abnormal compensating equipment may include processor 401 and be stored with computer program instructions Memory 402.

Specifically, above-mentioned processor 401 may include central processing unit (CPU) or specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured to implement implementation of the present invention One or more integrated circuits of example.

Memory 402 may include the mass storage for data or instruction.For example it rather than limits, memory 402 may include hard disk drive (Hard Disk Drive, HDD), floppy disk drive, flash memory, CD, magneto-optic disk, tape or logical With the combination of universal serial bus (Universal Serial Bus, USB) driver or two or more the above.It is closing In the case where suitable, memory 402 may include the medium of removable or non-removable (or fixed).In a suitable case, it stores Device 402 can be inside or outside data processing equipment.In a particular embodiment, memory 402 is nonvolatile solid state storage Device.In a particular embodiment, memory 402 includes read-only memory (ROM).In a suitable case, which can be mask ROM, programming ROM (PROM), erasable PROM (EPROM), the electric erasable PROM (EEPROM), electrically-alterable ROM of programming (EAROM) or the combination of flash memory or two or more the above.

Processor 401 is by reading and executing the computer program instructions stored in memory 402, to realize above-mentioned implementation Any one ink jet printer nozzles abnormal compensating method in example.

In one example, ink jet printer nozzles abnormal compensating equipment may also include communication interface 403 and bus 411. Wherein, as shown in figure 12, processor 401, memory 402, communication interface 403 are connected and are completed mutual by bus 411 Communication.

Communication interface 403 is mainly used for realizing in the embodiment of the present invention between each module, device, unit and/or equipment Communication.

Bus 411 includes hardware, software or both, and the component of ink jet printer nozzles abnormal compensating equipment is coupled to each other Together.For example it rather than limits, bus may include accelerated graphics port (AGP) or other graphics bus, enhancing industry mark Quasi- framework (EISA) bus, front side bus (FSB), super transmission (HT) interconnection, Industry Standard Architecture (ISA) bus, infinite bandwidth Interconnection, low pin count (LPC) bus, memory bus, micro- channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association part (VLB) are total The combination of line or other suitable buses or two or more the above.In a suitable case, bus 411 may include One or more buses.Although specific bus has been described and illustrated in the embodiment of the present invention, the present invention considers any suitable Bus or interconnection.

In addition, in conjunction with the ink jet printer nozzles abnormal compensating method in above-described embodiment, the embodiment of the present invention be can provide A kind of computer readable storage medium is realized.Computer program instructions are stored on the computer readable storage medium；The meter Calculation machine program instruction realizes any one ink jet printer nozzles abnormal compensating side in above-described embodiment when being executed by processor Method.

In conclusion ink jet printer nozzles abnormal compensating method, apparatus, equipment and storage provided in an embodiment of the present invention Medium has not only repaired the problem of abnormal nozzle exception out of ink leads to poor quality images, but also has reduced blow head maintenance cost.

It should be clear that the invention is not limited to specific configuration described above and shown in figure and processing. For brevity, it is omitted here the detailed description to known method.In the above-described embodiments, several tools have been described and illustrated The step of body, is as example.But method process of the invention is not limited to described and illustrated specific steps, this field Technical staff can be variously modified, modification and addition after understanding spirit of the invention, or suitable between changing the step Sequence.

Functional block shown in structures described above block diagram can be implemented as hardware, software, firmware or their group It closes.When realizing in hardware, it may, for example, be electronic circuit, specific integrated circuit (ASIC), firmware appropriate, insert Part, function card etc..When being realized with software mode, element of the invention is used to execute program or the generation of required task Code section.Perhaps code segment can store in machine readable media program or the data-signal by carrying in carrier wave is passing Defeated medium or communication links are sent." machine readable media " may include any medium for capableing of storage or transmission information. The example of machine readable media includes electronic circuit, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), soft Disk, CD-ROM, CD, hard disk, fiber medium, radio frequency (RF) link, etc..Code segment can be via such as internet, inline The computer network of net etc. is downloaded.

It should also be noted that, the exemplary embodiment referred in the present invention, is retouched based on a series of step or device State certain methods or system.But the present invention is not limited to the sequence of above-mentioned steps, that is to say, that can be according in embodiment The sequence referred to executes step, may also be distinct from that the sequence in embodiment or several steps are performed simultaneously.

The above description is merely a specific embodiment, it is apparent to those skilled in the art that, For convenience of description and succinctly, the system, module of foregoing description and the specific work process of unit can refer to preceding method Corresponding process in embodiment, details are not described herein.It should be understood that scope of protection of the present invention is not limited thereto, it is any to be familiar with Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions, These modifications or substitutions should be covered by the protection scope of the present invention.

Claims

1. a kind of ink jet printer nozzles abnormal compensating method, which is characterized in that the described method includes:

Determine abnormal nozzle location information in spray head；

Print parameters are obtained, corresponding first print data of the abnormal nozzle are determined, according to the abnormal nozzle location information With the print parameters, the corresponding compensation nozzle location of the first print data that the abnormal nozzle is compensated in the spray head is determined Information；

According to the print parameters, the compensation nozzle second print data corresponding in normal print is obtained, described the Two print datas include inking data and non-inking data out, determine the address of non-inking data out in second print data, will The address of the corresponding write-in of the first print data non-inking data out generates offset data.

2. ink jet printer nozzles abnormal compensating method according to claim 1, which is characterized in that the print parameters packet It includes: relative displacement, nozzle quantity and the reciprocating scanning and printing number of print media and spray head.

3. ink jet printer nozzles abnormal compensating method according to claim 1, which is characterized in that the offset data packet It includes in first print data and goes out inking data and non-inking data out.

4. ink jet printer nozzles abnormal compensating method according to claim 2, which is characterized in that the described method includes: The number for defining the reciprocating scanning and printing is R, and R is the integer more than or equal to 2, and the spray head is corresponding with R group nozzle, works as institute It states when having one or more abnormal nozzles in the v group nozzle of R group nozzle, is selected from the remaining R-1 group nozzle of the R group nozzle It takes nozzle corresponding with the abnormal nozzle position alternately to compensate nozzle, compensation is chosen to spray from the alternative compensation nozzle Mouth compensates the abnormal nozzle, and each abnormal nozzle corresponds at least one compensation nozzle, and wherein v is the integer more than or equal to 1.

5. ink jet printer nozzles abnormal compensating method according to claim 2, which is characterized in that the acquisition printing ginseng Number, determines corresponding first print data of the abnormal nozzle, according to the abnormal nozzle location information and the print parameters, Determine the corresponding compensation nozzle location information of the first print data that the abnormal nozzle is compensated in the spray head, comprising:

According to the print parameters and the current corresponding degree of covering in described print media the same area, current covering is obtained The feed distance of print media and compensation range to first abnormal nozzle, establish first abnormal nozzle position, First abnormal nozzle print position on the print medium and corresponding first printing of first abnormal nozzle Mapping relations between data；

If the print position of first abnormal nozzle on the print medium is not deposited outside the current print range of the spray head Store up the mapping relations；

If the print position of first abnormal nozzle on the print medium stores in the current print range of the spray head The mapping relations, and back up first print data.

6. ink jet printer nozzles abnormal compensating method according to claim 5, which is characterized in that beaten described in the foundation Parameter is printed, the compensation nozzle second print data corresponding in normal print is obtained, second print data includes Inking data and non-inking data out out, determine the address of non-inking data out in second print data, by the first printing number Offset data is generated according to the address of the corresponding write-in non-inking data out, comprising:

It searches in the mapping relations of storage, in the print range for covering current print media, if having described first different The corresponding print position of abnormal nozzle outside normal nozzle is in the print range；

If so, being denoted as the second abnormal nozzle, and second abnormal nozzle is obtained according to the mapping relations and is situated between in the printing Corresponding print position information in matter calculates the compensation of can be carried out compensation in the print range for covering current print media The non-out of ink of the compensation nozzle is written in the print data of second abnormal nozzle backed up in the mapping relations by nozzle Data address generates offset data.

7. ink jet printer nozzles abnormal compensating method according to claim 2, which is characterized in that the acquisition printing ginseng Number, determines corresponding first print data of the abnormal nozzle, according to the location information and the print parameters, determine described in The corresponding compensation nozzle location information of the first print data of the abnormal nozzle is compensated in spray head, comprising:

The number for defining the reciprocating scanning and printing is M, and M is the integer more than or equal to 2, i.e. every block of image is beaten by M covering It printing, current printed indicia is denoted as X, and the X refers to starting counting the number for playing and currently having printed from entire printing, It calculates whether all abnormal nozzles fall within the M print range comprising counting in being currently printed upon one by one, remembers it In abnormal nozzle be first jet, X time top of form is equal to the opposite position between preceding X print media and spray head It moves, is denoted as Sx；The newly-increased coverage distance of the X time printing on the print medium is denoted as h_x, the height of spray head is denoted as H, then institute The newly-increased coverage area for stating X time printing is denoted as [S_x+H-h_x, S_x+ H], remember that the first jet is situated between in the spray head and printing Distance is Q between first nozzle on direction that the relative displacement of matter increases, then at X+0 time, X+1 time ..., Corresponding initial position is respectively as follows: S in+M-1 printings of X_x, S_x+1..., S_X+M-1, then the newly-increased covering model that prints every time It encloses are as follows: [S_x+H-h_x, S_x+ H], the print position of the first jet is respectively as follows: S_x+ Q, S_x+1+ Q ..., S_X+M-1+ Q, if described One nozzle is located at outside the corresponding newly-increased coverage area in the print position on the print media, then storage mapping is not closed System；

If the first jet is located in the corresponding newly-increased coverage area in the print position on the print media, and not It being repeated with stored mapping relations, then stores the mapping relations, the mapping relations include corresponding printed indicia, and first Nozzle corresponding print position on the print medium, and take out first print data of the first jet.

8. ink jet printer nozzles abnormal compensating method according to claim 7, which is characterized in that beaten described in the foundation Parameter is printed, the compensation nozzle second print data corresponding in normal print is obtained, second print data includes Inking data and non-inking data out out, determine the address of non-inking data out in second print data, by the first printing number Offset data is generated according to the address of the corresponding write-in non-inking data out, comprising:

When currently printing for X time, stored mapping relations are searched for one by one, remember the corresponding abnormal spray of one of mapping relations Mouth is second nozzle, the print position of the second nozzle on the print medium is taken out from the mapping relations, if described beat Print position is more than or equal to the initial position currently printed, then the mapping relations are effective, and the print position of the second nozzle subtracts The value of initial position currently printed is gone, Z is denoted as_xIf Z_xLess than the sprinkler height H, then the second nozzle is corresponding described First print data can compensate for, according to each nozzle location information in the spray head, if Z_xThe corresponding nozzle in position is normal spray Mouth, then Z_xCompensation nozzle of the corresponding nozzle in position as the second nozzle, is denoted as third nozzle, by the second nozzle The non-data address out of ink of corresponding second print data of the third nozzle is written in first print data, obtains the third spray The offset data of mouth, while removing the corresponding of the correspondence second nozzle that the third nozzle is had been written into memory The data that compensation is fallen；

The second nozzle can be continuously available during the relative displacement of the print media and the spray head increases The corresponding third print data of the second nozzle, the 4th print data ... N print data ..., until the second nozzle Compensation data writes or the corresponding mapping relations of the second nozzle are out-of-date, and the third print data is the second printing number According to residue data to be compensated, the 4th print data after compensated be after the third print data is compensated it is remaining to Offset data, the N print data is the residue data to be compensated after N-1 print data is compensated, wherein 4≤N≤M, N Round numbers.

9. a kind of ink jet printer nozzles abnormal compensating device, which is characterized in that described device includes:

Nozzle location determining module is compensated, for obtaining print parameters, determines corresponding first print data of the abnormal nozzle, According to the abnormal nozzle location information and the print parameters, first dozen that the abnormal nozzle is compensated in the spray head is determined Printing is according to corresponding compensation nozzle location information；

Offset data generation module, for it is corresponding in normal print to obtain the compensation nozzle according to the print parameters The second print data, second print data include inking data and it is non-go out inking data, determine second print data In it is non-go out inking data address, by the corresponding write-in of first print data it is described it is non-go out inking data address generate compensation number According to.

10. a kind of ink jet printer nozzles abnormal compensating equipment characterized by comprising at least one processor, at least one The computer program instructions of memory and storage in the memory, when the computer program instructions are by the processor Such as method of any of claims 1-8 is realized when execution.

11. a kind of storage medium, is stored thereon with computer program instructions, which is characterized in that when the computer program instructions Such as method of any of claims 1-8 is realized when being executed by processor.

12. a kind of ink jet printing device characterized by comprising control unit, ejection head unit and nozzle compensating unit, it is described Control unit controls the nozzle compensating unit and compensates to the abnormal nozzle in the ejection head unit, wherein the nozzle Compensating unit is ink jet printer nozzles abnormal compensating device as claimed in claim 9.