CN104608492A - Ink jet printer maintenance method and system - Google Patents
Ink jet printer maintenance method and system Download PDFInfo
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- CN104608492A CN104608492A CN201510076974.2A CN201510076974A CN104608492A CN 104608492 A CN104608492 A CN 104608492A CN 201510076974 A CN201510076974 A CN 201510076974A CN 104608492 A CN104608492 A CN 104608492A
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- 238000012423 maintenance Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 237
- 239000002904 solvent Substances 0.000 claims abstract description 140
- 238000003860 storage Methods 0.000 claims abstract description 47
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims description 25
- 239000002699 waste material Substances 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 6
- 238000007639 printing Methods 0.000 description 5
- 238000007641 inkjet printing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 2
- 229920001002 functional polymer Polymers 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Ink Jet (AREA)
Abstract
The invention discloses an ink jet printer maintenance method and system. The method includes the steps of arranging a solvent storage unit with a preset liquid level below a spray unit with cleaned spray nozzles, and setting the distance between the spray nozzles and the initial liquid level of a solvent to be within a preset range; detecting whether the distance between the liquid level of the solvent and the spray nozzles is within the preset range or not; if not, setting the distance between the spray nozzles and the liquid level of the solvent to be within the preset range by adjusting the height of the spray nozzles or the height of the liquid level of the solvent. According to the ink jet printer maintenance method, a solvent atmosphere is formed through the solvent volatilization, and all of the cleaned spray nozzles of an ink jet printer are in the solvent atmosphere of high humidity, so that the volatilization rate of the solvent in the spray nozzles is reduced. Compared with periodic ink injection maintenance in the prior art, the ink jet printer maintenance method and system can save resources, thereby greatly saving maintenance costs.
Description
Technical Field
The invention relates to the technical field of ink-jet printers, in particular to a maintenance method and a maintenance system of an ink-jet printer.
Background
The inkjet printing technology has the characteristics of high efficiency, low cost, non-contact form, flexible processing process and the like, so that a pattern formed by inkjet printing is widely applied to the processing of an Organic electronic device, the deposition and patterning of a functional polymer Film are realized by printing a functional polymer solution, and the processing of an Organic light emitting diode, an Organic Thin Film Transistor (OTFT for short) and an integrated device thereof is realized.
The ink jet printer is similar to a traditional stylus printer, as shown in fig. 1, and comprises a liquid inlet pipeline 1 and a liquid outlet pipeline 2, and a spraying unit 3 which is composed of a plurality of nozzles 31 and pipelines 32 communicated with the nozzles, wherein the pipelines 32 in the spraying unit 3 are also communicated with the liquid inlet pipeline 1 and the liquid outlet pipeline 2, when printing is prepared, the outlet of the nozzle 31 is closed, ink enters the spraying unit 3 from the liquid inlet pipeline 1, after the pipelines 32 of the spraying unit 3 are filled, if the ink flows out from the liquid outlet pipeline 2, the pipelines in the spraying unit 3 are cleaned, then the outlet of the nozzle 31 is opened, and if all the nozzles 31 also have the ink, the nozzles 31 in the spraying unit are normal, and printing can be carried out. In printing, the outlets of the nozzles 31 are opened, ink is ejected onto the substrate through the respective nozzles 31, and the ink ejected onto the substrate is dried to obtain a target film layer.
However, when the above ink jet printer is used, since the ink is composed of some solid organic materials dissolved in a solvent, the ink in the nozzles is dried when not used for a certain period of time, and the remaining solid matter blocks the nozzles. Therefore, in the production process, in order to prevent the nozzle from being clogged, it is necessary to perform periodic ink discharge maintenance, which is very resource-consuming and affects the life of the nozzle.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a maintenance method and a maintenance system for an inkjet printer, so as to avoid the problem of resource waste during maintenance of the inkjet printer.
Therefore, an embodiment of the present invention provides a maintenance method for an inkjet printer, where the inkjet printer includes a jetting unit, and a liquid inlet pipeline and a liquid outlet pipeline located above the jetting unit, where the jetting unit has a plurality of nozzles and a circulation pipeline communicated with each nozzle, and the circulation pipeline is respectively communicated with the liquid inlet pipeline and the liquid outlet pipeline; the maintenance method comprises the following steps:
placing a liquid storage device for storing a solvent with a preset liquid level height in a space below a spraying unit with a cleaned nozzle, and enabling the distance between the nozzle and the initial liquid level of the solvent to be within a preset range;
detecting whether the distance between the liquid level of the solvent and the nozzle is within the preset range;
if not, the distance between the solvent liquid level and the nozzle is enabled to be within the preset range by adjusting the height of the nozzle or the height of the solvent liquid level.
Preferably, in the maintenance method provided in an embodiment of the present invention, detecting whether a distance between the liquid level of the solvent and the nozzle is within the preset range specifically includes:
detecting whether the liquid level height of the solvent in the liquid storage device is smaller than a first preset height, wherein the first preset height is the minimum height enabling the distance between the liquid level of the solvent and the nozzle to be within the preset range.
Preferably, in the maintenance method provided in an embodiment of the present invention, adjusting the height of the solvent liquid level to make the distance between the solvent liquid level and the nozzle satisfy a preset range includes:
adding a solvent into the liquid storage device, detecting the liquid level height of the solvent, and stopping adding when the liquid level height of the solvent reaches a second preset height, wherein the second preset height is the maximum height which enables the distance between the liquid level of the solvent and the nozzle to be within the preset range.
Preferably, in the maintenance method according to an embodiment of the present invention, a solvent is added to the liquid storage device, and specifically,
and adding the solvent into a liquid inlet pipeline of the ink-jet printer, wherein the solvent is added into the liquid storage device through each nozzle in the spraying unit.
Preferably, in the maintenance method according to an embodiment of the present invention, before the liquid storage device storing the solvent at the preset liquid level is placed in a space below the spray unit of which the nozzle has been cleaned, the method further includes:
and cleaning the ink-jet printer by using a solvent until all the nozzles of the ink-jet printer are determined to be cleaned.
Correspondingly, the embodiment of the invention also provides a maintenance system of the ink-jet printer, wherein the ink-jet printer comprises a spraying unit, a liquid inlet pipeline and a liquid outlet pipeline, wherein the liquid inlet pipeline and the liquid outlet pipeline are positioned above the spraying unit; the maintenance system includes:
the liquid storage device is used for storing a solvent with a preset liquid level and is placed in a space below the spraying unit with the cleaned nozzles, and the liquid storage device at least covers the orthographic projection of each nozzle in the spraying unit on the liquid storage device opposite to the opening of the spraying unit;
the detection device is used for detecting whether the distance between the liquid level of the solvent and the nozzle is within a preset range or not; when the distance between the solvent liquid level and the nozzle exceeds the preset range, the distance between the solvent liquid level and the nozzle is enabled to be within the preset range by adjusting the height of the nozzle or the height of the solvent liquid level.
Preferably, in the maintenance system provided in the embodiment of the present invention, the detecting device specifically includes: a first liquid level detector; wherein,
the first liquid level detector is used for detecting whether the liquid level height of the solvent in the liquid storage device is smaller than a first preset height, wherein the first preset height is the minimum height which enables the distance between the liquid level of the solvent and the nozzle to be within the preset range.
Preferably, in the maintenance system provided in the embodiment of the present invention, the detecting device further includes: a second liquid level detector; wherein,
and the second liquid level detector is used for detecting whether the liquid level height of the solvent reaches a second preset height or not when the solvent is added into the liquid storage device, and stopping adding when the liquid level height of the solvent reaches the second preset height, wherein the second preset height is the maximum height which enables the distance between the liquid level of the solvent and the nozzle to be within the preset range.
Preferably, in the maintenance system provided in the embodiment of the present invention, the maintenance system further includes: a waste liquid collection device;
the waste liquid collecting device is used for collecting liquid generated when the ink-jet printer is cleaned.
Preferably, in the maintenance system provided in the embodiment of the present invention, the maintenance system further includes a liquid supply device communicated with a liquid inlet pipeline of the inkjet printer; wherein,
the liquid supply device comprises two liquid supply units, each liquid supply unit is provided with a corresponding control switch, and one liquid supply unit is used for adding ink into the liquid inlet pipeline when the ink-jet printer prints; and the other liquid supply unit is used for adding a solvent into the liquid inlet pipeline when the ink-jet printer is maintained.
According to the maintenance method and the maintenance system of the ink-jet printer provided by the embodiment of the invention, the liquid storage device for storing the solvent with the preset liquid level height is arranged in the space below the jetting unit with the cleaned nozzle, and the distance between the nozzle and the initial liquid level of the solvent is in the preset range; detecting whether the distance between the liquid level of the solvent and the nozzle is within a preset range; if not, the distance between the solvent liquid level and the nozzle is enabled to be within a preset range by adjusting the height of the nozzle or the height of the solvent liquid level. The method depends on solvent volatilization to generate a solvent atmosphere, so that each nozzle of the cleaned ink-jet printer is kept in the solvent atmosphere with high humidity, thereby reducing the volatilization rate of the solvent in the nozzle. Compared with the periodic ink spitting maintenance in the prior art, the method can save resources, thereby greatly saving the maintenance cost.
Drawings
FIG. 1 is a schematic diagram of a conventional ink jet printer;
FIG. 2 is a schematic flow chart illustrating a method for maintaining an inkjet printer according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a maintenance system according to an embodiment of the present invention;
FIG. 4a is a schematic cross-sectional view of a reservoir and a waste collection device in a maintenance system according to an embodiment of the present invention;
fig. 4b is a schematic top view of a liquid storage device and a waste liquid collecting device in the maintenance system according to the embodiment of the present invention;
fig. 5 is a second schematic structural diagram of a maintenance system according to an embodiment of the present invention.
Detailed Description
The following describes in detail a specific embodiment of a maintenance method and a maintenance system for an inkjet printer according to an embodiment of the present invention with reference to the drawings.
The maintenance method of the ink-jet printer comprises the steps that the ink-jet printer comprises a jet unit, a liquid inlet pipeline and a liquid outlet pipeline, wherein the liquid inlet pipeline and the liquid outlet pipeline are positioned above the jet unit; as shown in fig. 2, the maintenance method may include the steps of:
s201, placing a liquid storage device for storing a solvent with a preset liquid level height in a space below a spraying unit with a cleaned nozzle, and enabling the distance between the nozzle and the initial liquid level of the solvent to be within a preset range;
s202, detecting whether the distance between the liquid level of the solvent and the nozzle is within a preset range;
and S203, when the distance between the liquid level of the solvent and the nozzle is not within the preset range, adjusting the height of the nozzle or the height of the liquid level of the solvent to enable the distance between the liquid level of the solvent and the nozzle to be within the preset range.
According to the maintenance method provided by the embodiment of the invention, a liquid storage device for storing the solvent with the preset liquid level height is placed in the space below the spraying unit with the cleaned nozzle, and the distance between the nozzle and the initial liquid level of the solvent is in the preset range; detecting whether the distance between the liquid level of the solvent and the nozzle is within a preset range; if not, the distance between the solvent liquid level and the nozzle is enabled to be within a preset range by adjusting the height of the nozzle or the height of the solvent liquid level. The method depends on solvent volatilization to generate a solvent atmosphere, so that each nozzle of the cleaned ink-jet printer is kept in the solvent atmosphere with high humidity, thereby reducing the volatilization rate of the solvent in the nozzle. Compared with the periodic ink spitting maintenance in the prior art, the method can save resources, thereby greatly saving the maintenance cost.
It should be noted that the preset range in the above maintenance method provided by the embodiment of the present invention refers to a range in which each nozzle in the inkjet printer is about to contact with the liquid level of the solvent in the liquid storage device but is not in contact with the liquid level.
Specifically, in the maintenance method provided by the embodiment of the present invention, the inkjet printer generally includes a support frame for supporting the ejection unit, so that in practical implementation, the inkjet printer may be directly moved to the liquid storage device, or the liquid storage device may be moved below the ejection unit of the inkjet printer, which is not limited herein.
Preferably, in the maintenance method provided in the embodiment of the present invention, the step S202 of detecting whether the distance between the liquid level of the solvent and the nozzle is within a preset range may specifically include:
and detecting whether the liquid level of the solvent in the liquid storage device is smaller than a first preset height, wherein the first preset height is the minimum height which enables the distance between the liquid level of the solvent and the nozzle to be within a preset range. Therefore, the distance between each nozzle in the ink-jet printer and the liquid level of the solvent in the liquid storage device can be detected only by detecting the liquid level of the solvent in the liquid storage device, the method is simple, the detection can be realized only by one liquid level detector, and the cost is low.
Preferably, in the maintenance method provided in an embodiment of the present invention, adjusting the height of the solvent liquid level to make the distance between the solvent liquid level and the nozzle satisfy a preset range may include:
adding the solvent into the liquid storage device, detecting the liquid level height of the solvent, and stopping adding when the liquid level height of the solvent reaches a second preset height, wherein the second preset height is the maximum height which enables the distance between the liquid level of the solvent and the nozzle to be within a preset range. Therefore, the method can avoid adding too much solvent only by detecting the liquid level of the solvent in the liquid storage device, is simple, can be realized only by one liquid level detector and has lower cost.
Preferably, in the maintenance method provided in an embodiment of the present invention, a solvent is added to the liquid storage device, specifically:
solvent is added into a liquid inlet pipeline in the ink jet printing device, and the solvent is added into the liquid storage device through each nozzle in the spraying unit. Thus, the solvent is added to the liquid storage device by the ink jet printer, so that the purpose of adding the solvent to the liquid storage device can be achieved, and the purpose of keeping the nozzle of the ink jet printer wet can be further achieved.
Further, in the maintenance method provided in the implementation of the present invention, before the liquid storage device storing the solvent at the preset liquid level is placed in the space below the spraying unit of which the nozzle is cleaned, the method may further include:
the inkjet printer is subjected to a cleaning process using a solvent until it is determined that each nozzle of the inkjet printer is cleaned.
Further, in specific implementation, a solvent may be added to a liquid inlet pipeline in the inkjet printer until all the liquid ejected from all the nozzles of the inkjet printer is free of impurities, and then it is determined that each nozzle of the inkjet printer is cleaned. In this embodiment, the cleaning process may be performed on the inkjet printer by other methods, but is not limited thereto.
Based on the same inventive concept, an embodiment of the present invention further provides a maintenance system of an inkjet printer 20, as shown in fig. 3, the inkjet printer 20 includes a spraying unit 21, a liquid inlet pipe 22 and a liquid outlet pipe 23 located above the spraying unit 21, where the spraying unit 21 has a plurality of nozzles and circulation pipes communicated with the nozzles, and the circulation pipes are respectively communicated with the liquid inlet pipe 22 and the liquid outlet pipe 23; the maintenance system includes:
a liquid storage device 11 for storing a solvent with a preset liquid level and being placed in a space below the spray unit 21 with the nozzles cleaned, wherein the liquid storage device 11 covers at least an orthographic projection of each nozzle in the spray unit 21 on the liquid storage device 11 facing an opening of the spray unit 21;
a detecting device 12 for detecting whether the distance between the solvent liquid level and the nozzle is within a preset range; when the distance between the solvent liquid level and the nozzle exceeds the preset range, the distance between the solvent liquid level and the nozzle is enabled to be within the preset range by adjusting the height of the nozzle or the height of the solvent liquid level.
Preferably, in the maintenance system provided in the embodiment of the present invention, as shown in fig. 3, the detecting device 12 specifically includes: a first liquid level detector 121; wherein,
a first liquid level detector 121 for detecting whether the liquid level of the solvent in the liquid storage device 11 is less than a first preset height, wherein the first preset height is a minimum height which enables the distance between the liquid level of the solvent and the nozzle to be within a preset range.
Preferably, in the maintenance system provided in the embodiment of the present invention, as shown in fig. 3, the detecting device 12 further includes: a second liquid level detector 122; wherein,
and a second level detector 122 for detecting whether the liquid level of the solvent reaches a second preset level when the solvent is added to the liquid storage device 11, and stopping the addition when the liquid level of the solvent reaches the second preset level, wherein the second preset level is a maximum level at which a distance between the liquid level of the solvent and the nozzle is within a preset range.
Preferably, in the maintenance system provided in the embodiment of the present invention, the maintenance system may further include: a waste liquid collection device;
the waste liquid collecting device is used to collect liquid generated when the inkjet printer 20 is subjected to a cleaning process. . This is because the liquid ejected by purging the ink jet printer contains ink residues used when the ink jet printer performs ink jet printing, and therefore, the liquid ejected by purging the ink jet printer needs to be stored separately from the liquid for keeping the nozzles wet.
Specifically, in the implementation, in order to facilitate the operation, in the maintenance system provided in the embodiment of the present invention, as shown in fig. 4a and 4b, the waste liquid collecting device 13 and the liquid storage device 11 may be disposed side by side, or may be disposed separately, and the present invention is not limited thereto. Preferably, the waste collection container and the liquid storage device are arranged side by side, so that the cleaning and maintenance can be conveniently switched.
Further, in the maintenance system provided by the embodiment of the present invention, as shown in fig. 5, the maintenance system may further include a liquid supply device 14 communicated with the liquid inlet pipe 22 of the inkjet printer 20; wherein,
the liquid supply device comprises two liquid supply units 141, each liquid supply unit 141 is provided with a corresponding control switch 142, and one liquid supply unit 141 is used for adding ink into the liquid inlet pipeline 22 when the ink-jet printer 20 performs printing; the other liquid supply unit 141 is used to add solvent to the liquid inlet line 22 when the ink jet printer 20 is in maintenance. Each control switch 142 is used to control whether the corresponding liquid supply unit 141 and the liquid inlet pipe 22 are connected or not.
Further, in practical implementation, the maintenance system provided in the embodiment of the present invention, as shown in fig. 5, further includes a recovery device 15 in communication with the liquid outlet pipeline 23 of the inkjet printer 20; the liquid supply device includes two recovery units 151, and each recovery unit 151 has a corresponding control switch 152 for controlling whether the corresponding recovery unit 151 and the liquid outlet pipeline 23 are conducted or not. Two recovery units 151 in the recovery device correspond to the liquid supply unit 141 in the liquid supply device, and are mainly used for respectively recovering the solvent added to the liquid inlet pipeline by the corresponding liquid supply unit 141 when each nozzle of the ink jet printer 20 is closed.
According to the maintenance method and the maintenance system of the ink-jet printer provided by the embodiment of the invention, the liquid storage device for storing the solvent with the preset liquid level height is arranged in the space below the jetting unit with the cleaned nozzle, and the distance between the nozzle and the initial liquid level of the solvent is in the preset range; detecting whether the distance between the liquid level of the solvent and the nozzle is within a preset range; if not, the distance between the solvent liquid level and the nozzle is enabled to be within a preset range by adjusting the height of the nozzle or the height of the solvent liquid level. The method depends on solvent volatilization to generate a solvent atmosphere, so that each nozzle of the cleaned ink-jet printer is kept in the solvent atmosphere with high humidity, thereby reducing the volatilization rate of the solvent in the nozzle. Compared with the periodic ink spitting maintenance in the prior art, the method can save resources, thereby greatly saving the maintenance cost.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A maintenance method of an ink-jet printer comprises a jet unit, a liquid inlet pipeline and a liquid outlet pipeline, wherein the liquid inlet pipeline and the liquid outlet pipeline are positioned above the jet unit; the maintenance method is characterized by comprising the following steps:
placing a liquid storage device for storing a solvent with a preset liquid level height in a space below a spraying unit with a cleaned nozzle, and enabling the distance between the nozzle and the initial liquid level of the solvent to be within a preset range;
detecting whether the distance between the liquid level of the solvent and the nozzle is within the preset range;
if not, the distance between the solvent liquid level and the nozzle is enabled to be within the preset range by adjusting the height of the nozzle or the height of the solvent liquid level.
2. The maintenance method according to claim 1, wherein detecting whether a distance between the solvent level and the nozzle is within the preset range specifically comprises:
detecting whether the liquid level height of the solvent in the liquid storage device is smaller than a first preset height, wherein the first preset height is the minimum height enabling the distance between the liquid level of the solvent and the nozzle to be within the preset range.
3. The maintenance method according to claim 2, wherein the adjusting the height of the solvent level such that the distance between the solvent level and the nozzle satisfies a predetermined range includes:
adding a solvent into the liquid storage device, detecting the liquid level height of the solvent, and stopping adding when the liquid level height of the solvent reaches a second preset height, wherein the second preset height is the maximum height which enables the distance between the liquid level of the solvent and the nozzle to be within the preset range.
4. A service method according to any one of claims 1-3, wherein a solvent is added to the liquid storage means, in particular,
and adding the solvent into a liquid inlet pipeline of the ink-jet printer, wherein the solvent is added into the liquid storage device through each nozzle in the spraying unit.
5. The maintenance method according to any one of claims 1 to 3, further comprising, before placing a reservoir containing a solvent at a predetermined level in a space below the spray unit in which the nozzle has been cleaned, a step of:
and cleaning the ink-jet printer by using a solvent until all the nozzles of the ink-jet printer are determined to be cleaned.
6. A maintenance system of an ink-jet printer comprises a jet unit, a liquid inlet pipeline and a liquid outlet pipeline, wherein the liquid inlet pipeline and the liquid outlet pipeline are positioned above the jet unit; characterized in that the maintenance system comprises:
the liquid storage device is used for storing a solvent with a preset liquid level and is placed in a space below the spraying unit with the cleaned nozzles, and the liquid storage device at least covers the orthographic projection of each nozzle in the spraying unit on the liquid storage device opposite to the opening of the spraying unit;
the detection device is used for detecting whether the distance between the liquid level of the solvent and the nozzle is within a preset range or not; when the distance between the solvent liquid level and the nozzle exceeds the preset range, the distance between the solvent liquid level and the nozzle is enabled to be within the preset range by adjusting the height of the nozzle or the height of the solvent liquid level.
7. The maintenance system according to claim 6, wherein the detection device specifically includes: a first liquid level detector; wherein,
the first liquid level detector is used for detecting whether the liquid level height of the solvent in the liquid storage device is smaller than a first preset height, wherein the first preset height is the minimum height which enables the distance between the liquid level of the solvent and the nozzle to be within the preset range.
8. The maintenance system of claim 7, wherein the detection device further comprises: a second liquid level detector; wherein,
and the second liquid level detector is used for detecting whether the liquid level height of the solvent reaches a second preset height or not when the solvent is added into the liquid storage device, and stopping adding when the liquid level height of the solvent reaches the second preset height, wherein the second preset height is the maximum height which enables the distance between the liquid level of the solvent and the nozzle to be within the preset range.
9. The maintenance system of any one of claims 6-8, further comprising: a waste liquid collection device;
the waste liquid collecting device is used for collecting liquid generated when the ink-jet printer is cleaned.
10. The maintenance system of any one of claims 6-8, further comprising a liquid supply in communication with an inlet line of the inkjet printer; wherein,
the liquid supply device comprises two liquid supply units, each liquid supply unit is provided with a corresponding control switch, and one liquid supply unit is used for adding ink into the liquid inlet pipeline when the ink-jet printer prints; and the other liquid supply unit is used for adding a solvent into the liquid inlet pipeline when the ink-jet printer is maintained.
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| CN201510076974.2A CN104608492B (en) | 2015-02-12 | 2015-02-12 | The maintaining method of a kind of ink-jet printer and the system of maintenance |
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| CN104608492B (en) | 2016-10-05 |
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