CN117002154A - Ink jet head jam detection method, device, printer and storage medium - Google Patents
Ink jet head jam detection method, device, printer and storage medium Download PDFInfo
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- CN117002154A CN117002154A CN202310784990.1A CN202310784990A CN117002154A CN 117002154 A CN117002154 A CN 117002154A CN 202310784990 A CN202310784990 A CN 202310784990A CN 117002154 A CN117002154 A CN 117002154A
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000012795 verification Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000012360 testing method Methods 0.000 claims description 43
- 238000007641 inkjet printing Methods 0.000 claims description 37
- 238000007639 printing Methods 0.000 claims description 22
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16579—Detection means therefor, e.g. for nozzle clogging
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Abstract
The invention belongs to the technical field of printers and discloses a method and a device for detecting ink jet head blockage, a printer and a storage medium, wherein in the method for detecting ink jet head blockage, ink jet points are grouped to form n groups of ink jet point groups, n is more than or equal to 2, each group of ink jet point groups comprises a plurality of ink jet points, the distance between any two adjacent ink jet points in the ink jet point groups is larger than L, the ink jet points are sequentially arranged along a first direction, the distance between any two adjacent ink jet points in the ink jet point groups is L, the ink jet points of other ink jet point groups are arranged between any two adjacent ink jet points in the ink jet point groups, the distance is larger, the blockage verification is sequentially carried out on the n groups of ink jet point groups, the detection of all ink jet points can be completed through the steps, and meanwhile, the accuracy requirement on an image acquisition device can be reduced due to the fact that the distance between the ink jet points of each time is larger.
Description
Technical Field
The present invention relates to the field of printers, and in particular, to a method and an apparatus for detecting clogging of an inkjet head, a printer, and a storage medium.
Background
The ink jet head is used as a core component of printing equipment such as an ink jet printer, a digital printing machine, an ink jet 3D printer and the like, and the purpose of forming images is achieved by selectively spraying ink on a target area. However, the nozzles of the printer are prone to risk of clogging, so that it is necessary to detect whether the nozzles are clogged before each execution of a print job.
In view of the above, the prior art provides a maintenance method of an inkjet printer, which performs an inkjet operation on a preset test text by controlling an ink cartridge, and controls a scan bar to scan a pattern printed by the inkjet operation, so as to obtain a scan pattern, compare the scan pattern with the test pattern, and determine a plugged target nozzle according to a comparison result. However, this solution has a problem that, for the high-resolution inkjet head, the requirements on the installation position and the movement precision of the scanning device are high, and errors in the installation and movement precision can cause the failure of the detection function.
Disclosure of Invention
According to one aspect of the invention, the invention provides a method for detecting blockage of an ink jet head, which is used for solving the problems that the installation position and the movement precision of scanning equipment in the maintenance method of an ink jet printer in the prior art are high in requirements, and the detection function is invalid due to errors in the installation and the movement precision.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the ink jet head comprises a plurality of ink jet points for ink jet printing, wherein the ink jet points are sequentially arranged along a first direction, and the interval between any two adjacent ink jet points is L;
the ink jet head jam detection method includes:
s100: grouping the ink jet points to form n groups of ink jet point groups, wherein n is more than or equal to 2, the serial numbers of the ink jet point groups are sequentially 1, 2, … and n, each ink jet point group comprises a plurality of ink jet points, and the distance between any two adjacent ink jet points in the ink jet point groups is larger than L;
s200: sequentially performing blocking verification on n groups of inkjet dot groups, S200 includes:
s210: performing blocking verification on the ith ink jet dot group, wherein i is more than or equal to 1 and less than or equal to n, and S210 comprises:
s2101: controlling a plurality of the ink jet points of the ith ink jet point group to carry out ink jet printing on a test area;
s2102: controlling an image acquisition device to acquire an image of a test area;
s2103: and judging whether the ink jet points of the ith ink jet point group are blocked or not based on the image of the test area.
As a preferable mode of the head jam detection method, in step S3102, a plurality of the ink ejection points of the i-th group of ink ejection point groups are all ejected a plurality of times.
In step S100, the number of the inkjet dots included in the plurality of inkjet dot groups is equal, and the pitches of any two adjacent inkjet dots in the inkjet dot group are equal.
As a preferable embodiment of the head jam detection method, in step S2103, if there are inkjet dots that have been jammed in the i-th inkjet dot group, step S2104 is executed;
s2104: and sending out an alarm and outputting the position or serial number of the ink jet point with the blockage.
As a preferred embodiment of the inkjet head jam detection method, step S200 further includes, prior to S210:
s201: setting a parameter i=1;
step S200 further includes, following S210:
s220: judging the sizes of i and n;
if i < n, executing step S230; if i is more than or equal to n, ending;
s230: the parameter i is incremented by one and returns to step S210.
According to another aspect of the present invention, there is provided an ink jet head jam detection device, the ink jet head including a plurality of ink jet dots for ink jet printing, the plurality of ink jet dots being sequentially arranged along a first direction, and a pitch of any adjacent two of the ink jet dots being L;
the inkjet head jam detection device includes:
the ink jet point grouping module is used for grouping the ink jet points to form n groups of ink jet point groups;
the ink jet point group blockage checking module is used for sequentially checking blockage of n groups of ink jet point groups; the ink jet dot group blockage checking module comprises:
the system comprises an ith group of ink jet point group blockage checking module, a second group of ink jet point group blockage checking module and a third group of ink jet point group blockage checking module, wherein the ith group of ink jet point group blockage checking module is used for performing blockage checking on the ith group of ink jet point group; the i-th group ink jet dot group blockage verification module comprises:
the ink jet printing module is used for controlling a plurality of ink jet points of the ith ink jet point group to carry out ink jet printing on the test area;
the image acquisition module is used for controlling the image acquisition device to acquire the image of the test area;
and the ink jet point blockage judging module is used for judging whether ink jet points which are blocked exist in the ink jet point group of the ith group based on the image of the test area.
According to yet another aspect of the present invention, there is provided a printer comprising an inkjet head including a plurality of inkjet dots for inkjet printing, and a printing platform;
further comprises:
a controller;
the image acquisition device is used for acquiring an image of the test area and sending the image to the controller;
a memory for storing one or more programs;
the one or more programs, when executed by the controller, cause the controller to control the printer to implement the inkjet head jam detection method described above.
As a preferable mode of the printer, the printer further comprises an ink-jet head driving member for driving the ink-jet head and the image acquisition device to reciprocate synchronously.
As the preferred scheme of printer, the inkjet point is used for carrying out the inkjet printing to the consumptive material on the printing platform, the printer is still including being used for the installation unreeling roller of consumptive material and being used for the rolling the wind-up roll of consumptive material, follows the direction of delivery of consumptive material, unreeling roller with the wind-up roll is located respectively print the both ends of platform.
According to still another aspect of the present invention, there is provided a storage medium having stored thereon a computer program which, when executed by a controller, implements the above-described inkjet head jam detection method.
The beneficial effects of the invention are as follows:
the invention provides a method, a device, a printer and a storage medium for detecting ink jet head blockage, wherein in the method for detecting ink jet head blockage, ink jet points are grouped to form n groups of ink jet point groups, n is more than or equal to 2, each group of ink jet point groups comprises a plurality of ink jet points, the distance between any two adjacent ink jet points in the ink jet point groups is larger than L, the ink jet points are sequentially arranged along a first direction, the distance between any two adjacent ink jet points is L, therefore, ink jet points of other ink jet point groups are arranged between any two adjacent ink jet points in the ink jet point groups, the distance is larger, the n groups of ink jet point groups are sequentially subjected to blockage verification, and the method comprises the steps of performing blockage verification on the i group of ink jet points, and particularly controlling the plurality of ink jet points of the i group of ink jet point groups to perform ink jet printing on a test area; controlling an image acquisition device to acquire an image of a test area; comparing the image of the test area with a preset image, and judging whether the ink jet point group of the ith group has ink jet points with blockage. Through the steps, detection of all the ink jet points can be completed, and meanwhile, the accuracy requirement on the image acquisition device can be reduced due to the fact that the distance between a plurality of ink jet points for jetting ink each time is larger.
Drawings
FIG. 1 is a flowchart of a method for detecting clogging of an inkjet head according to an embodiment of the present invention;
FIG. 2 is a second flowchart of a method for detecting clogging of an inkjet head according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a device for detecting clogging of an ink jet head according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a printer according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a printer according to an embodiment of the present invention.
In the figure:
201. an inkjet dot grouping module; 202. the ink jet point group blockage checking module; 203. an i-th set of inkjet dot set blocking verification modules; 204. an inkjet printing module; 205. an image acquisition module; 206. a block judgment module for ink jet points;
301. an ink jet head; 302. an image acquisition device; 303. a controller; 304. a memory; 305. a slide rail; 306. a consumable driving member;
401. a printing platform; 402. an unreeling roller; 403. a wind-up roll; 404. an inkjet head driving member;
500. and (5) consumable materials.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Example 1
The nozzles of an inkjet printer are prone to risk of clogging, so that it is necessary to detect whether the nozzles are clogged before each execution of a print job. In view of the above, the prior art provides a maintenance method of an inkjet printer, which performs an inkjet operation on a preset test pattern by controlling an ink cartridge, and controls a scan bar to scan the pattern printed by the inkjet operation, so as to obtain a scan pattern, compare the scan pattern with the test pattern, and determine a plugged target nozzle according to a comparison result. However, this solution has a problem that, for the high-resolution inkjet head, the requirements on the installation position and the movement precision of the scanning device are high, and errors in the installation and movement precision can cause the failure of the detection function.
In view of the above problems, the present embodiment provides a method for detecting blockage of an inkjet head, so as to solve the problem that in the prior art, the installation position and the movement precision of a scanning device in the maintenance method of an inkjet printer are high in requirements, and errors in the installation and movement precision can cause failure of a detection function, and the method can be used in the technical field of printers. The inkjet head jam detection method may be performed by an inkjet head jam detection device, which may be implemented in software and/or hardware and integrated in a printer. The ink jet head comprises a plurality of ink jet points for ink jet printing, the ink jet points are sequentially arranged along a first direction, and the distance between any two adjacent ink jet points is L.
Referring to fig. 1, the method for detecting the clogging of the ink jet head includes the following steps.
S100: the ink jet points are grouped to form n groups of ink jet point groups, n is more than or equal to 2, the serial numbers of the ink jet point groups are sequentially 1, 2, … and n, each ink jet point group comprises a plurality of ink jet points, and the distance between any two adjacent ink jet points in the ink jet point groups is larger than L.
It can be understood that before the ink jet dots are grouped, the printer should be started first, specifically, after the user presses the print button, the print button sends a signal to the controller, the controller generates a print instruction, and the printer is started; if the controller does not receive the signal sent by the print button, the printer is always in a standby state.
Because the ink jet points of the ink jet head are sequentially arranged along the first direction, and the distance between any two adjacent ink jet points in the ink jet head is L, the ink jet points of other ink jet point groups are arranged between any two adjacent ink jet points in the ink jet point group, and the distance is larger. In addition, n is not less than 2 to form at least two ink jet dot groups, and n is 10 or less for reducing the number of times of ink jet printing and image acquisition.
Optionally, the ink jet dot groups include equal numbers of ink jet dots, and the distances between any two adjacent ink jet dots in the ink jet dot groups are equal. For example, in the present embodiment, the total number of ink jet dots of the ink jet head is 1200, n has a value of 10, i.e. is divided into 10 groups, the 1 st, 11, 21, 31, …, 1191 st ink jet dot group is the 1 st ink jet dot group, the 2 nd, 12, 22, 32, …, 1192 nd ink jet dot group is the 2 nd ink jet dot group, and the like. By the arrangement, the number of the ink jet points in the ink jet point group can be consistent and distributed uniformly.
S200: and sequentially performing jam verification on n groups of ink jet dot groups, wherein S200 comprises a step S210.
S210: and (2) performing blocking verification on the ith ink jet dot group, wherein i is more than or equal to 1 and less than or equal to n, namely performing blocking verification on one ink jet dot group, and S210 comprises steps S2101-S2103.
S2101: and controlling a plurality of ink jet points of the ith ink jet point group to carry out ink jet printing on the test area.
In this embodiment, the inkjet dots perform inkjet printing on the consumable set above the printing platform, so before performing inkjet printing on the test area, the consumable to be printed should be driven to move to the printing platform, specifically, the area where the consumable has been printed is moved out of the printing platform, so that the area where the consumable has not been printed moves to the printing platform, and thus the original print mark on the consumable is prevented from affecting the image acquisition result of the subsequent step. Optionally, the inkjet head is driven to move above the printing platform before controlling the inkjet dots to perform inkjet printing. In other embodiments, the ink-jet dots may also be ink-jet printed on the test strip or transparent glass, and after the ink-jet printed and image acquired, the test strip is replaced or the dots of transparent glass are wiped off.
S2102: the image acquisition device is controlled to acquire an image of the test area.
Optionally, before performing step S2102, the image capturing device is driven to move above the printing platform, while the inkjet head is driven to move out above the printing platform. The image acquisition device may be a scanner, or may be a device such as a camera or video camera. In step S2101, only a plurality of ink jet dots of the i-th ink jet dot group are used for performing ink jet printing on the consumable material each time, so that the number of ink jet dots in each ink jet is reduced, the distance between any two adjacent ink jet dots in the ink jet dot group is larger, in step S2102, only an image of the ink jet position of the ink jet dot of the i-th ink jet dot group is required to be acquired, and the accuracy requirement on the image acquisition device is lower.
Optionally, in step S2101, the plurality of ink ejection points of the i-th ink ejection point set eject ink multiple times to increase the ink ejection amount of the ink ejection points, and form a larger mark at the corresponding position of the consumable in a single-point accumulation manner, so as to further reduce the accuracy requirement of the image acquisition device. Alternatively, in the present embodiment, the ink ejection points on which the ink jet printing was performed are each ejected 10 times.
S2103: and judging whether the ink jet points of the ith group of ink jet point groups are blocked or not based on the image of the test area.
Specifically, the controller reads the position or serial number of each ink jet dot for ink jet printing in step S2101; and then reading the positions of all the ink points in the image of the test area to obtain the positions or serial numbers of the corresponding ink jet points, and comparing the positions or serial numbers of the ink jet points with each other. If the controller reads the position or serial number of each inkjet point for inkjet printing in step S2101, it obtains a to-be-detected inkjet point for inkjet printing, and does not read the corresponding inkjet point in the image of the read test area, it can be determined that the inkjet point is blocked, that is, the i-th inkjet point group has a blocked inkjet point.
If there are ink ejection points in the i-th ink ejection point group, step S2104 is performed.
S2104: an alarm is issued and the position or serial number of the ink jet dot where the jam exists is output.
After outputting the position or serial number of the ink jet point with the blockage, the related personnel can be reminded to overhaul or replace the ink jet head. The maintenance and replacement of the inkjet head is prior art and will not be described in detail here.
According to the ink jet head blockage detection method, ink jet points are grouped to form n groups of ink jet point groups, n is larger than or equal to 2, each group of ink jet point groups comprises a plurality of ink jet points, the distance between any two adjacent ink jet points in the ink jet point groups is larger than L, the ink jet points are sequentially arranged along the first direction, the distance between any two adjacent ink jet points in the ink jet point groups is L, the ink jet points of other ink jet point groups are arranged between any two adjacent ink jet points in the ink jet point groups, the distance is larger, and then blockage verification is sequentially carried out on the n groups of ink jet point groups. Through the steps, detection of all the ink jet points can be completed, and meanwhile, the accuracy requirement on the image acquisition device can be reduced due to the fact that the distance between a plurality of ink jet points for jetting ink each time is larger. In addition, since the ink jet points of the ith ink jet point group are all used for jetting ink many times, a larger mark can be formed at the corresponding position of the consumable material in a single-point accumulation mode, so that the accuracy requirement of the image acquisition device is further reduced.
Example two
The present embodiment provides another ink-jet head jam detection method, which is embodied in the ink-jet head jam detection method in the first embodiment, and referring to fig. 2, the ink-jet head jam detection method includes the following steps.
S100: the ink jet points are grouped to form n groups of ink jet point groups, n is more than or equal to 2, the serial numbers of the ink jet point groups are sequentially 1, 2, … and n, each ink jet point group comprises a plurality of ink jet points, and the distance between any two adjacent ink jet points in the ink jet point groups is larger than L.
S200: and sequentially performing jam verification on n groups of ink jet dot groups, wherein S200 comprises steps S201-S230.
S201: the parameter i=1 is set.
S210: and (3) performing blocking verification on the ith ink jet dot group, wherein i is more than or equal to 1 and less than or equal to n, and S210 comprises steps S2101-S2103.
S2101: and controlling a plurality of ink jet points of the ith ink jet point group to carry out ink jet printing on the test area.
S2102: the image acquisition device is controlled to acquire an image of the test area.
S2103: and judging whether the ink jet points of the ith group of ink jet point groups are blocked or not based on the image of the test area.
If there are ink ejection points in the i-th ink ejection point group, step S2104 is performed. If the ith set of ink jet dots does not have ink jet dots that are jammed, step S220 is performed.
S2104: an alarm is issued and the position or serial number of the ink jet dot where the jam exists is output.
S220: and judging the sizes of i and n.
If i < n, it indicates that there are still ink jet dot groups for which the jam check is not performed, and step S230 is performed; if i is greater than or equal to n, the blocking verification is completed for all the ink jet dot groups, and the execution of the program can be ended at this time.
S230: the parameter i is incremented by one and returns to step S210.
According to the ink jet head blockage detection method, ink jet points are grouped to form n groups of ink jet point groups, n is larger than or equal to 2, each group of ink jet point groups comprises a plurality of ink jet points, the distance between any two adjacent ink jet points in the ink jet point groups is larger than L, the ink jet points are sequentially arranged along the first direction, the distance between any two adjacent ink jet points in the ink jet point groups is L, the ink jet points of other ink jet point groups are arranged between any two adjacent ink jet points in the ink jet point groups, the distance is larger, and then blockage verification is sequentially carried out on the n groups of ink jet point groups. Through the steps, detection of all the ink jet points can be completed, and meanwhile, the accuracy requirement on the image acquisition device can be reduced due to the fact that the distance between a plurality of ink jet points for jetting ink each time is larger. In addition, since the ink jet points of the ith ink jet point group are all used for jetting ink many times, a larger mark can be formed at the corresponding position of the consumable material in a single-point accumulation mode, so that the accuracy requirement of the image acquisition device is further reduced. In addition, on the basis of the method for detecting the clogging of the inkjet head in the first embodiment, in the process of sequentially performing the clogging verification on the n inkjet dot groups, the clogging verification on the n inkjet dot groups is sequentially completed from the clogging verification on the 1 st inkjet dot group until it is detected that all the inkjet dot groups have completed the clogging verification, and the execution of the program is ended.
Example III
The present embodiment provides an inkjet head jam detection device that can be used to perform the above described inkjet head jam detection method. The ink jet head comprises a plurality of ink jet points for ink jet printing, the ink jet points are sequentially arranged along a first direction, and the distance between any two adjacent ink jet points is L.
Referring to fig. 3, the inkjet head jam detection device includes an inkjet dot grouping module 201 and an inkjet dot group jam check module 202, the inkjet dot group jam check module 202 includes an i-th group inkjet dot group jam check module 203, and the i-th group inkjet dot group jam check module 203 includes an inkjet printing module 204, an image acquisition module 205, and an inkjet dot jam determination module 206.
Wherein, the inkjet dot grouping module 201 is configured to group inkjet dots to form n groups of inkjet dot groups; the ink jet dot group blockage checking module 202 is used for sequentially checking blockage of n groups of ink jet dot groups; the i-th inkjet dot group blockage verification module 203 is configured to perform blockage verification on the i-th inkjet dot group; the inkjet printing module 204 is configured to control a plurality of inkjet points of the ith group of inkjet points to perform inkjet printing on the test area; the image acquisition module 205 is configured to control the image acquisition device to acquire an image of the test area; the ink jet dot jam determination module 206 is configured to determine whether an ink jet dot of the ith ink jet dot group is jammed based on the image of the test area.
In the device for detecting clogging of an inkjet head provided in this embodiment, inkjet points are grouped by the inkjet point grouping module 201 to form n groups of inkjet point groups; sequentially performing blocking verification on n groups of ink jet dot groups through an ink jet dot group blocking verification module 202, specifically performing blocking verification on the i group of ink jet dot groups through an i group of ink jet dot group blocking verification module 203, and further specifically controlling a plurality of ink jet dots of the i group of ink jet dot groups to perform ink jet printing on a test area through an ink jet printing module 204; controlling the image acquisition device to acquire an image of the test area through the image acquisition module 205; whether or not there are inkjet dots that have been jammed in the i-th group of inkjet dot groups is determined by the inkjet dot jam determination module 206 based on the image of the test area. The ink-jet head blockage detection device can detect whether the ink-jet head is blocked or not, and simultaneously reduce the precision requirement of the image acquisition device.
Example IV
This embodiment provides a printer, fig. 4 is a mechanical connection structure of each component of the printer, and fig. 5 is an electrical connection or communication connection structure of each component of the printer. Referring to fig. 4-5, the printer includes an inkjet head 301 and a printing platform 401, the inkjet head 301 including a plurality of inkjet dots for inkjet printing; the printer further comprises a controller 303, an image acquisition device 302 and a memory 304, the image acquisition device 302 being arranged to acquire an image of the test area and to send the image to the controller 303.
The memory 304 is used as a computer readable storage medium for storing a software program, a computer executable program, and modules, such as program instructions/modules corresponding to the ink jet head jam detection method in the embodiment of the present invention. The controller 303 executes various functional applications of the printer and data processing by running software programs, instructions, and modules stored in the memory 304, that is, implements the inkjet head jam detection method of the above-described embodiment.
The memory 304 mainly includes a memory program area and a memory data area, wherein the memory program area can store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the terminal, etc. In addition, memory 304 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some examples, the memory 304 may further include a memory 304 remotely located with respect to the controller 303, which may be connected to the printer via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Optionally, the inkjet dots are used to inkjet print the consumable 500 on the printing platform 401. The printer also includes a consumable drive 306 and an inkjet head drive 404. The consumable driving piece 306 is used for driving the consumable 500 to be printed to move; the head driver 404 is configured to simultaneously drive the inkjet head 301 and the image pickup device 302 to reciprocate in synchronization. The inkjet head 301 and the image capturing device 302 are slidably mounted on the sliding rail 305, and the inkjet head driving member 404 is used for driving the inkjet head 302 and the image capturing device 302 to slide along the sliding rail 305. Specifically, the inkjet head 301 can perform inkjet printing on the test area of the consumable 500, and after printing is completed, the inkjet head driver 404 drives the inkjet head 301 away from the test area and drives the image capturing device 302 to move to the test area, so that the image capturing device 302 can capture an image of the test area of the consumable 500. Before the next inkjet printing, the inkjet head driver 404 drives the inkjet head 301 and the image acquisition device 302 to reset.
Optionally, the printer further includes an unreeling roller 402 for mounting the consumable 500 and a reeling roller 403 for reeling the consumable 500, and the unreeling roller 402 and the reeling roller 403 are respectively located at two ends of the printing platform along the conveying direction of the consumable. The unreeling roller 402 is used for installing the consumable 500, so that the consumable 500 can move to the printing platform 401 to finish printing and image acquisition under the driving of the consumable driving piece 306, and the consumable 500 which finishes printing and image acquisition can be far away from the printing platform 401 under the driving of the consumable driving piece 306 and is reeled in the reeling roller 403.
The printer provided by the fourth embodiment of the present invention belongs to the same inventive concept as the method for detecting the clogging of the inkjet head provided by the above embodiment, and technical details not described in detail in this embodiment can be seen in the above embodiment, and this embodiment has the same advantageous effects of executing the method for detecting the clogging of the inkjet head.
Example five
A fifth embodiment of the present invention also provides a storage medium having stored thereon a computer program which, when executed by a controller, implements the inkjet head jam detection method according to the above-described embodiment of the present invention.
Of course, the storage medium containing the computer executable instructions provided by the embodiment of the invention is not limited to the operations in the ink-jet head blockage detection method, but can also execute the related operations in the ink-jet head blockage detection device provided by the embodiment of the invention, and has corresponding functions and beneficial effects.
From the above description of embodiments, it will be clear to a person skilled in the art that the present invention may be implemented by means of software and necessary general purpose hardware, but of course also by means of hardware, although in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, etc., and include several instructions for causing a computer device (which may be a robot, a personal computer, a server, or a network device, etc.) to execute the method for detecting clogging of an inkjet head according to the embodiments of the present invention.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. The ink jet head comprises a plurality of ink jet points for ink jet printing, wherein the ink jet points are sequentially arranged along a first direction, and the interval between any two adjacent ink jet points is L;
the method for detecting the blockage of the ink jet head is characterized by comprising the following steps:
s100: grouping the ink jet points to form n groups of ink jet point groups, wherein n is more than or equal to 2, the serial numbers of the ink jet point groups are sequentially 1, 2, … and n, each ink jet point group comprises a plurality of ink jet points, and the distance between any two adjacent ink jet points in the ink jet point groups is larger than L;
s200: sequentially performing blocking verification on n groups of inkjet dot groups, S200 includes:
s210: performing blocking verification on the ith ink jet dot group, wherein i is more than or equal to 1 and less than or equal to n, and S210 comprises:
s2101: controlling a plurality of the ink jet points of the ith ink jet point group to carry out ink jet printing on a test area;
s2102: controlling an image acquisition device to acquire an image of a test area;
s2103: and judging whether the ink jet points of the ith ink jet point group are blocked or not based on the image of the test area.
2. The inkjet head jam detection method of claim 1, wherein in step S2101, a plurality of the inkjet dots of the i-th group of inkjet dot groups are all inkjet a plurality of times.
3. The method according to claim 1, wherein in step S100, the ink-jet dot groups include the same number of ink-jet dots, and the pitch of any two adjacent ink-jet dots in the ink-jet dot groups is equal.
4. The method according to claim 1, wherein in step S2103, if there are inkjet dots that are jammed in the i-th inkjet dot group, step S2104 is performed;
s2104: and sending out an alarm and outputting the position or serial number of the ink jet point with the blockage.
5. The inkjet head jam detection method of any one of claims 1 to 4 wherein step S200 further includes, prior to S210:
s201: setting a parameter i=1;
step S200 further includes, following S210:
s220: judging the sizes of i and n;
if i < n, executing step S230; if i is more than or equal to n, ending;
s230: the parameter i is incremented by one and returns to step S210.
6. The ink jet head blockage detection device comprises a plurality of ink jet points used for ink jet printing, wherein the ink jet points are sequentially arranged along a first direction, and the distance between any two adjacent ink jet points is L;
the ink jet head blockage detection device is characterized by comprising:
the ink jet point grouping module is used for grouping the ink jet points to form n groups of ink jet point groups;
the ink jet point group blockage checking module is used for sequentially checking blockage of n groups of ink jet point groups; the ink jet dot group blockage checking module comprises:
the system comprises an ith group of ink jet point group blockage checking module, a second group of ink jet point group blockage checking module and a third group of ink jet point group blockage checking module, wherein the ith group of ink jet point group blockage checking module is used for performing blockage checking on the ith group of ink jet point group; the i-th group ink jet dot group blockage verification module comprises:
the ink jet printing module is used for controlling a plurality of ink jet points of the ith ink jet point group to carry out ink jet printing on the test area;
the image acquisition module is used for controlling the image acquisition device to acquire the image of the test area;
and the ink jet point blockage judging module is used for judging whether ink jet points which are blocked exist in the ink jet point group of the ith group based on the image of the test area.
7. A printer comprising an inkjet head including a plurality of inkjet dots for inkjet printing;
characterized by further comprising:
a controller;
the image acquisition device is used for acquiring an image of the test area and sending the image to the controller;
a memory for storing one or more programs;
the one or more programs, when executed by the controller, cause the controller to control a printer to implement the inkjet head jam detection method of any one of claims 1-5.
8. The printer of claim 7, further comprising an inkjet head drive for driving the inkjet head and the image capture device to reciprocate synchronously.
9. The printer of claim 7, wherein the inkjet dots are used for inkjet printing of consumables on a printing platform, the printer further comprising an unreeling roller for mounting the consumables and a reeling roller for reeling the consumables, the unreeling roller and the reeling roller being respectively located at two ends of the printing platform along a conveying direction of the consumables.
10. A storage medium having a computer program stored thereon, wherein the printer implements the inkjet head jam detection method according to any one of claims 1 to 5 when the program is executed by a controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310784990.1A CN117002154A (en) | 2023-06-29 | 2023-06-29 | Ink jet head jam detection method, device, printer and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310784990.1A CN117002154A (en) | 2023-06-29 | 2023-06-29 | Ink jet head jam detection method, device, printer and storage medium |
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| CN117002154A true CN117002154A (en) | 2023-11-07 |
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| CN202310784990.1A Pending CN117002154A (en) | 2023-06-29 | 2023-06-29 | Ink jet head jam detection method, device, printer and storage medium |
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| Country | Link |
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| CN (1) | CN117002154A (en) |
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