CN1191934C - Ink jet fault tolerance device and method - Google Patents

Ink jet fault tolerance device and method Download PDF

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Publication number
CN1191934C
CN1191934C CN 00819709 CN00819709A CN1191934C CN 1191934 C CN1191934 C CN 1191934C CN 00819709 CN00819709 CN 00819709 CN 00819709 A CN00819709 A CN 00819709A CN 1191934 C CN1191934 C CN 1191934C
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print
position
device
printing
ink
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CN 00819709
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CN1454150A (en
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卡·西尔弗布鲁克
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西尔弗布鲁克研究有限公司
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Abstract

一种打印方法,它能够识别设备部分或全部不能正常工作所产生的部分无法正确打印的图像;而且,如果可能,它会横向或纵向移动打印点,在相邻的行或列中打印将它出来,从而改善故障位置的视觉效果。 A printing method which can identify some or all of the image portion of the apparatus does not work generated can not be printed correctly; and, if possible, move it laterally or longitudinally print dots, print it on adjacent rows or columns out, thereby improving the visual effect of the fault location.

Description

喷墨容错的装置和方法 An ink jet apparatus and method for fault-tolerant

技术领域 FIELD

本发明涉及数字打印,尤其涉及使用将墨喷射到打印基体上的设备的打印。 The present invention relates to digital printing, and more particularly to a device using ink jet printing on a print base body. 但是本发明的使用又不局限于喷墨打印设备,它也可以应用于激光打印机、发光二极管打印机以及数字影印机。 However, the present invention is not limited to the ink jet printing apparatus, it can also be applied to a laser beam printer, LED printer and digital copiers.

背景技术 Background technique

在喷墨打印设备中,打印头有一排喷嘴,当打印基体相对于打印头运动时,墨被通过喷嘴选择性地喷射到基体上。 In the ink jet printing apparatus, the print head has a row of nozzles, when the print substrate relative to the print head movement, the ink is selectively ejected through a nozzle onto a substrate. 打印头可以通过横跨基体扫描打印水平带,或者,如果是全页宽打印头可以沿着页长方向纵向打印。 The printhead can scan across the substrate to print horizontal bands or, if a full pagewidth printhead may be printed along a longitudinal direction of the page length. 如果有一个喷嘴堵塞,则在扫描型打印头的情况下,就会造成多条水平空白线,而页宽打印头就会出现一条空白垂直线。 If there is a clogging of the nozzle, then in the case of a scanning type print head will result in a plurality of horizontal blank lines, and pagewidth printhead vertical line there will be a blank. 这种空白线是不期望出现的,因为它们降低了打印的效果。 This blank line is undesirable because they reduce the effect of print.

发明内容 SUMMARY

本发明提供一种修正图像打印的方法,使用该方法,能够减少或有效消除一个或多个堵塞的喷嘴产生的在正常使用中对观察者的眼睛而言明显的视觉效果。 The present invention provides a method of printing the corrected image, using this method, it is possible to reduce or effectively eliminate one or more of clogged nozzles resulting clear visual effect for the viewer's eyes in normal use. 当然,本发明还可应用于其它形式的打印,这里,无论是被动还是主动,重复地使用一设备在一基体上产生墨点等。 Of course, the present invention is also applicable to other forms of printing, here, whether passive or active, is repeatedly used to produce a device in a dot matrix like. 本发明还可应用于激光打印机、发光二极管打印机以及数字影印机,其中,成像鼓或光源的故障可能在产生的图像中造成重复性的错误。 The present invention is also applicable to a laser beam printer, LED printer and a digital copy machine, wherein the imaging drum or light source failure may cause an error in the repetitive image generated. 本文提到的图像一词是广义的,泛指任何打印内容,如:文本和线条画。 The term picture is broadly referred to herein, refers to any print content, such as: text and line drawings.

从一种广义的方面来讲,本发明提供一种修正待由数字打印设备打印的图像的方法,所述数字打印设备使用多个相似部件打印图像,以弥补所述设备的错误,使其能够在一个或多个特定位置正确地打印墨点。 Terms from one broad aspect, the present invention provides a corrected image to be printed by the digital printing apparatus, said printing apparatus using a plurality of similar digital components of the print image, to compensate the error of the device, it is possible to correctly print dots in one or more specific locations. 该方法包括如下步骤:识别所述一个或多个特定位置;且对于计划要由所述多个部件的一第一个打印的至少一个特定位置,将本来用于图像上该特定位置的点的打印位置移动到还没有被图像中的其他点使用的移动位置,由此,所述多个部件的一第二个打印计划用于该移动位置的至少部分墨。 The method comprises the steps of: identifying the one or more particular positions; and for a program to be used by the at least one specific position of the first printing of the plurality of members, that would otherwise be used on that particular location of the image point moving the print position to a position has not been used in the other points in the image, whereby, a member of the plurality of second printing ink is at least partially intended for the mobile location.

从另一种广义的方面来讲,本发明提供了一种打印机,该打印机有一排能够将点行喷射到基体上的设备,和使所述基体相对于这排设备沿基本垂直于所述点行的方向移动的装置,该打印机包括:a)确定上述设备中的一个或多个是否不能正常工作的装置;b)控制装置,其分析待打印的图像,确定该通过激活故障设备打印墨滴的时间,并移动打印图像中该点的位置,使该点能够通过激活故障设备任一侧的一个打印设备打印出来。 From another broad aspect is concerned, the present invention provides a printer that has a row of points can be injected to the device rows on a substrate, and the substrate relative to the row of devices in a direction substantially perpendicular to the points means for moving the row direction, the printer comprising: a) determining one or more of the above-described apparatus can not work properly if the apparatus; b) a control unit that analyzes the image to be printed, which is determined by activating the device from printing the ink droplets time, and moves the print position of the point image, so that the point can be printed by activating a printing apparatus to either side of the failed device.

原计划由故障打印设备打印的墨点可以横向、纵向或既横向又纵向地移动。 Planned laterally by an ink dot failure of the printing device, both laterally and longitudinally, or longitudinally movable. 优选能够将墨移动到距离原始位置最近的位置。 Preferably ink can be moved to the closest position from the original position.

故障打印设备会在打印图像中产生一条或多条有缺陷的线条,所以优选将墨点交替地移动到缺陷线条的两侧。 The printing apparatus generates a fault line or a defective article in the printed image, it is preferable to move the ink dots alternately to both sides of the line defect. 优选只相对于该线横向地移动墨,但是如果同一行里没有可用的打印位置,也可以沿着线条既纵向又横向和纵向地移动墨。 It is preferably only moved transversely to the line of the ink, but if the same line in the printing position is not available, the line may be along both longitudinal and transverse and longitudinally move the ink. 墨可以移动到原行位置的上行或下行。 The ink may be moved to the original row position of an uplink or downlink.

附图说明 BRIEF DESCRIPTION

为了更好地了解本发明,请参阅附图以及对优选实施例的叙述,其中, For a better understanding of the present invention, please refer to the drawings and the description of the preferred embodiments, wherein

图1是喷墨打印头的一组喷嘴的示意图。 1 is a schematic of a set of nozzles of the ink jet print head.

图2是图1打印头形成的不具纠错操作的点阵示意图。 FIG 2 is a schematic view of a dot non-error correction operation of a print head of FIG.

图3是由图1打印头形成的与图2所示相同的点阵示意图,但具有纠错操作。 FIG 3 is the same as shown in FIG. 2 a schematic view of a dot formed by the printhead of FIG. 1, but with error correction operations.

图4是另一个由图1打印头形成的不具纠错操作的点阵示意图。 FIG 4 is a schematic view of a dot non-formation of an error correction operation by another print head of FIG.

图5是由图1打印头形成的如图4所示相同的点阵示意图,但具有纠错操作。 FIG 5 is a schematic view of the same dot matrix as shown in FIG 4 is formed by the printhead of FIG. 1, but with error correction operations.

具体实施方式 detailed description

如图1所示,打印头10具有排成一行的一组喷嘴12阵列。 1, the array of the print head 10 having a set of nozzles 12 arranged in a line. 为了便于说明,图中仅显示14个喷嘴,事实上一行喷嘴可以包括数十个、数千个喷嘴。 For convenience of description, showing only the nozzle 14, the nozzle line may in fact comprise dozens, thousands of nozzles. 纸张沿着基本垂直于喷嘴线的方向从打印头的下面通过,如箭头14所示。 Sheet along a line substantially perpendicular to the direction of the nozzle from below through the print head, as shown by arrow 14. 打印头可以是固定的,也可以是可移动的。 The print head may be stationary or may be movable. 当纸张从打印头下面经过时,喷嘴A至N按照需要选择性地将一个墨水点阵打印到纸张上。 When the sheet passes below the print head, the nozzle A to N as required selectively to print a dot of ink on the paper. 该阵列是由一系列的行和列组成,它们之间的距离分别由喷嘴之间的距离和最小进纸步长决定。 The array consists of a series of rows and columns, the distance between them are determined by the distance between the nozzles and the minimum paper feed step. 虽然优选纵向和横向点距离应该相等,但是由于控制距离的机制不同,所以不一定能够实现。 Although the preferred vertical and horizontal point distance should be equal, but due to the different mechanisms of distance control, it is not always possible. 打印头可以使用页宽打印头或较小的沿纸张扫描的打印头,以规定一系列横向打印带。 Pagewidth printheads may be used, or a smaller print head along the print head scans the paper to print a predetermined series of transverse bands.

为了便于说明,假设喷嘴ag和in能够正常工作,而喷嘴h由于某种原因不能正常工作或完全不工作。 For convenience of explanation, it is assumed in the nozzle and ag to work properly, and the nozzle h is not working or not working for some reason. 同时,假设打印机的诊断系统(本领域的技术人员应该知道)已经探测到喷嘴h不能正常工作。 Also assume that the printer diagnostic system (those skilled in the art should know) has detected the nozzle h is not working properly. 通常,喷嘴不工作主要是因为喷嘴被部分或全部堵塞,从而导致打印点墨量不足甚至无墨。 Typically, the nozzle does not work primarily because nozzle is partially or totally plugged, resulting in insufficient amount of ink even print dots of ink.

图2是由打印头10打印的不带纠错的一部分打印作业的示意图,其中有一个空白列,用“h”标记,对应喷嘴h,而列ag和in已被正确地选择进行打印。 FIG 2 is printed by the print head 10 without error correction part of the print job is a schematic view, wherein there is a blank column, with "h" tag, corresponds to H of the nozzle, and the columns ag and in have been correctly selected for printing. 根据打印头10是页宽打印头或扫描式打印头,这将导致在打印作业中出现一条或多条空白线。 The print head 10 is a pagewidth printhead or a scanning type printhead, which will lead to one or more blank lines in the print job. 标号为16、18、20和22的未涂阴影的圆代表本应该打印到列h,而没有打印上的墨滴。 Reference numerals 16, 18 and 22 is not present the hatched circles represent to be printed column h, but not on the printed ink drops. 图3是由打印头10打印的同一图像,但是它经过本发明一如上所述,纸张沿着箭头14的方向经过打印头,以便行1被首先打印。 FIG 3 is the same image printed by the print head 10, but the present invention through a described above, the direction of arrow 14 of paper past the print head, so that line 1 is first printed. 行1中,列h处应该打印点16。 In row 1, column 16 h at the point should be printed. 由于喷嘴h不能正常工作,所以控制系统判断相邻的喷嘴g和i是否需要打印墨点。 Since the nozzle h is not working properly, the control system determines adjacent nozzles g and i need to print dots. 因为这两个喷嘴都不需要打印墨点,所以控制系统半随机地从列g和列i中选择一个以将一点置于该相应列而不是列h。 Because the nozzles do not need to print two dots, the control system randomly selects one half to one o'clock disposed in the corresponding column from the column rather than the column g and h in column i.

控制系统通常在缺陷喷嘴的两侧交替打印额外的墨滴,所以优选的打印位置应该是上次打印的墨点的相对侧。 The control system typically alternate print additional ink droplets on both sides of the defective nozzle, it is preferable to print the opposite side of the position should be the last ink dots printed. 当然也存在没有之前数据的情况,例如:就在探测到该喷嘴出现故障之后,或打印机被重新启动时。 Of course, there is no previous data in the case, for example: in the nozzle after detection of the failure, or when the printer is restarted. 在这种情况下,控制系统将随机选择在左列或右列打印。 In this case, the control system will randomly choose to print in the left column or the right column.

因为列g和列i都是“空余的”,所以控制系统根据上述原则,选择在位置g打印单个墨点。 Because the column g and column i are "spare", the control system according to the above principles, to choose g print a single dot at the position.

行2中在列h上没有点,所以不需要增加额外的点。 2, no dot in the column line h, so no additional points.

行3中需要在列h上有一点18,而且列g和列h都是空余的,因为上次(在行1)打印的额外点是打印在列g中,因此,这次额外墨点打印在列i。 Line 3 is required in the column h 1:18 and columns g and h columns are spare, because the last (line 1) additional point print is printed in the column g, and therefore, the additional ink dot print in column i.

行4中在列h上也有一个打印点20,但是,这次,列g和列h都要求有点。 Line 4 in the column h also has a 20 point print, but, this time, row and column g h requires a bit. 所以在行4中没有额外墨点。 Therefore, no additional row 4 dots. 而行5中,列h不要求打印点,且列g和列i都是空余的。 And row 5, column h is not required to print dots, and the column g and column i are spare. 由于上一个额外墨点打印在列i,所以选择行5、列g打印原计划在行4,列h中打印的点。 Due to the additional dots printed in a column i, row 5 so selected, column g planned print row 4, column h in printed dot.

行6中要求在列h上也有一个打印点22,但这次,列g和列h又都已经被占用了。 Line 6 h required in the column also has a 22 point print, but this time, row and column h and g have been occupied. 所以,需要到下一行,行7来打印额外墨点。 Therefore, the need to go to the next line, line 7 to print extra dots. 行7中,列h和列g都没有计划打印点,但是,列i中有一个计划打印点。 7 rows, columns, column g and h are no plans to print point, however, there is a column i plan point print. 可以回想,点20a是打印在列g,所以这次额外墨点22a的优选位置应该是列i。 It may be recalled, 20a is a printing dot in the column g, it is preferable that the position of the additional ink dot 22a should be a column i. 但是,这个位置不再空闲,所以只能将这一点打印在列g,虽这会造成下一个额外墨点仍然需要打印到列g中。 However, this position is no longer idle, so that these can only be printed in the column g, although at this point will result in an extra ink still need to print the column g. 虽然这在微观上会显得不平衡,但是宏观上讲还是均衡的。 While this would appear to be an imbalance in the micro, but macro sense is balanced.

图4和图5所示为两组打印作业,平均而言,其比图2、图3需要的点多。 As shown in FIG. 4 and FIG. 5 is a print job groups, on average, which, 3:00 required than FIG. 2 FIG. 这里,仍然假设喷嘴h不能正常工作。 Here, still assuming nozzle h is not working properly. 首先打印行1,列h中需要打印点30。 First print row 1, column h is required to print 30 points. 由于只有列g空闲,所以点30a打印在列g。 Since only column g idle, so the point 30a printed in columns g. 行2、行3的列h都需要打印一个点,但是由于列g不可用,所以点32a和点34a都打印在列i中,而不管对交替打印的“需要”。 Row 2, row 3 column h are required to print a dot, but since the column g unavailable, so the point 32a and the point 34a are printed in column i, regardless of alternately printing "required."

行4、行6不需要点,但是行5、行7需要点。 Row 4, row 6 is no need to, but the row 5, line 7 needs points. 由于只有一行可用,所以点36a和点38a分别打印到行g和行i中。 Since only one line is available, the points 36a and 38a, respectively, to print dot row to row i and g.

此外,本发明还可以在与未打印的位置相邻或相近的非移动位置打印大尺寸墨点,并/或在与未打印的位置相邻或相近的行之间打印额外墨点。 Further non-moving position, the present invention may also be in a position adjacent or close to the unprinted print large dot and / or print additional dots between the rows adjacent or close to the location unprinted. 这通常通过操作打印机的控制装置来启动相邻有故障的喷嘴的打印喷嘴,实现为或者打印较大点或者以较高频率打印点的相应的打印体制。 This is typically starts faulty nozzle adjacent the nozzle by a control device print operation of the printer, printing large implemented as, or at a higher frequency or dot printed dots corresponding printing system.

尽管这里介绍的技术在确定何处放置墨点时仅考虑在原行后打印的行,可以理解,可使用前看特征来将点置于原始行之前的行。 Although the techniques described herein in determining where to place dots only consider rows printed after the original row, it is appreciated that, prior to see the feature can be used to point at the line before the original row. 例如:如果按照后看准则,应该将点置于故障喷嘴的右侧;但是如果前看,就会发现这一列中接下来的几行都需要打印墨点,那么,更好的解决办法就是将墨点打印在原行的左列。 For example: If the criteria in accordance with, the point should be placed on the right side of the malfunctioning nozzle; but if you look ahead, you will find this column in the next few rows need to print dots, then a better solution is to ink dots printed in the left column of the original line. 同样,该实施例也可以将点平移到下一行。 Also, this embodiment may be shifted to point to the next row. 利用前看特征,可以根据打印效果的需要将要求打印的点打印到通常要求位置之前的行。 See characteristics before use, as needed to print the dot printing requirement to the print line position usually required before.

此外,本发明也可以配合激光打印机、LED打印机、影印机以及其它利用独立的部件打印不同的墨点的数字打印机共同使用。 Further, the present invention may be incorporated into a laser printer, LED printer, a digital photocopier and the printer with a separate various other components of the print dot used in common. 例如,在LED打印机中,某个LED可能出现问题;在激光打印机中,某个光敏成像鼓可能出现问题。 For example, LED printer, an LED may be problems; in the laser printer, a photosensitive drum may be a problem. 在这两种情况下,移动点都可以隐藏或减轻设备故障产生的缺陷,改善图像的视觉效果。 In both cases, the moving point can be hidden or alleviating generation device failure and improve image visual effect.

Claims (20)

1.一种修改待被一数字打印装置打印的图像的方法,所述数字打印装置使用多个相似部件打印所述图像以补偿所述装置的故障,以便正确地在一个或多个特定的位置打印墨,所述方法包括以下步骤:a)识别所述一个或多个特定位置;b)对于计划待由多个元件的一第一个打印的至少一个特定位置,将计划用于所述图像中特定位置的墨的打印位置移动到还没有被该图像使用的一移动位置,由此,所述多个元件的一第二个打印计划用于所述移动位置的墨的至少一部分。 A method of modifying an image to be a digital printing device for printing, the digital printing apparatus using a plurality of similar means to print the image to compensate for the failure of the apparatus, in order to properly position the one or more specific printing ink, said method comprising the steps of: a) identifying the one or more particular positions; b) for a program to be used by the at least one particular position of a plurality of printing elements, the image intended for the ink print position is moved to a particular location has not been used a moved position of the image, whereby a second of said plurality of print elements planned for at least a portion of the movement position of the ink.
2.如权利要求1所述的方法,其特征在于,各个打印点被横向移动。 2. The method according to claim 1, wherein each printed dot to be moved laterally.
3.如权利要求1所述的方法,其特征在于,各个打印点被纵向移动。 The method according to claim 1, wherein each printed dot to be moved longitudinally.
4.如权利要求1所述的方法,其特征在于,各个打印点沿着横向、纵向两个方向移动。 4. The method according to claim 1, wherein each of the lateral movement of the print point, two longitudinal directions.
5.如权利要求1所述的方法,其特征在于,墨点可以移向两个或更多可能的位置,移动位置的选择受任何附近移动墨点的位置或最近打印的移动墨点的位置或是二者的影响。 5. The method according to claim 1, characterized in that the dots can be moved to two or more possible positions, a position selected by moving the position of the dot position or movement of any nearby recently printed ink dots or the influence of both.
6.如权利要求1所述的方法,其特征在于,如果图像包括排列成一行的多个特定位置,则所述移动位置大约50%在该行的一侧,而50%在该行的另一侧。 6. The method according to claim 1, wherein, if the image includes a plurality of specific positions arranged in a row, then the movement position of about 50% of one side of the line, while the other 50% of the line in side.
7.如权利要求1所述的方法,其特征在于,如果图像包括排列成一行的多个特定位置,则打印点相对于该行:a)只横向移动;或b)横向、纵向同时移动。 7. The method according to claim 1, wherein, if the image includes a plurality of specific positions arranged in a row, with respect to the print point line: a) only the lateral movement; or b) a transverse, vertical displacement.
8.如权利要求1所述的方法,其特征在于,所述移动位置在横向或纵向或两个方向直接与原位置相邻。 8. The method according to claim 1, wherein said movement position directly adjacent to the original position in the transverse or longitudinal or both directions.
9.如权利要求1所述的方法,其特征在于,附加的墨点以大尺寸墨滴的形式打印到各个特定位置的相邻位置。 9. The method according to claim 1, characterized in that the additional ink dot printing position adjacent to the respective specific location in the form of a large-sized ink droplets.
10.如权利要求1所述的方法,其特征在于,附加的墨点以额外墨滴的形式打印到各个特定位置的相邻位置。 10. The method according to claim 1, characterized in that the additional ink dot printing position adjacent to the respective specific location in the form of additional ink droplets.
11.一种打印机,该打印机具有一排能够将点行喷涂到基质上的设备,和使基质沿着基本垂直于所述点行的方向相对于该排设备移动的装置,所述打印机包括:a)确定上述设备中的一个或多个是否正常工作的装置;b)控制装置,其分析待打印的图像,确定该启动所述故障设备打印墨点的时间,并将打印图像中该点的位置移动到其它位置,使通过启动故障设备任一侧的一个打印设备来打印所述点。 A printer that has a row of points can be sprayed to the device rows on a substrate, the matrix and substantially along a direction perpendicular to the line of the point of discharge means with respect to a mobile device, said printer comprising: a) means for determining one or more of the above devices is working properly; b) a control unit that analyzes the image to be printed, it is determined that the start time of the print dots equipment failure, and the printed image point position to another position, so that printing by actuating a device on either side of the fault point the printing apparatus.
12.如权利要求11所述的打印机,其特征在于,所述控制装置判断相邻两个设备中的一个是否被要求在与原始位置相同的行中打印一个点,如果该两者均未被要求,则启动相邻设备中的一个以在与原始位置相同的行中打印该点。 12. The printer of claim 11, wherein said control means determines whether a neighbor is required to print a dot in the same position as the original row in the two devices, if not both the requirements, the adjacent device starts to print the dot at the same position as the original row.
13.如权利要求11所述的打印机,其特征在于,所述控制装置判断如果相邻的两个设备之一被要求打印,则控制装置启动另一个设备在原始位置所在行中打印该点。 13. A printer according to claim 11, wherein said control means determines if one of the two adjacent devices are required to print, the print control apparatus further device starts at the point where the line of the original position.
14.如权利要求11所述的打印机,其特征在于,所述控制装置确定如果两个相邻设备都不可用,则控制装置就会确定是否所述设备之一可被启动,在上一行或下一行打印该点,然后选择启动其中一个相邻设备在上一行或下一行打印所述点。 14. A printer according to claim 11, wherein said control means determines if two adjacent devices are not available, the control means determines whether the one of the devices will be activated in a row or the next line of the print point and the start device on one of the adjacent or next row of the print dot.
15.如权利要求9-11所述的打印机,其特征在于,所述控制装置仅启动直接与各个故障设备相邻的设备,以打印本应通过启动故障设备打印的点。 15. The printer according to claim 9-11, characterized in that the control device is activated only immediately adjacent the respective fault equipment device to the print start point of failure should the device by printing.
16.如权利要求11所述的打印机,其特征在于,所述设备为喷墨设备。 16. A printer according to claim 11, wherein said apparatus is an ink jet device.
17.如权利要求11所述的打印机,其特征在于,所述设备为发光设备。 17. A printer according to claim 11, wherein the device is a light emitting device.
18.如权利要求11所述的打印机,其特征在于,所述设备为光电导成像鼓的一部分。 18. A printer according to claim 11, wherein the device is a part of the photoconductive drum.
19.权利要求11所述的打印机是喷墨打印机,所述设备为喷墨设备,且其中可操作所述控制装置以启动相邻设备打印较大的墨点。 19. The printer as claimed in claim 11 is the inkjet printer, the apparatus is an ink jet apparatus, and wherein said control means is operable to activate the device adjacent printing large dots.
20.如权利要求11所述的打印机,其特征在于,选定的相邻设备以高于其它设备的工作频率启动,从而在各行之间打印墨点。 20. A printer according to claim 11, wherein the selected neighboring device to other than the operating frequency of the device is started, so that the printing ink dots between rows.
CN 00819709 2000-06-30 2000-06-30 Ink jet fault tolerance device and method CN1191934C (en)

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