How to maintain the nozzle of the printing machine on a daily basis

1. Environmental management:
1. Temperature control: Place the printing machine in an environment with relatively stable temperature. The ideal temperature range is generally 15℃-30℃. Too high temperature may cause the ink to dry and clog the nozzle, while too low temperature may affect the normal operation of the nozzle and the fluidity of the ink.
2. Humidity adjustment: It is more appropriate to keep the indoor humidity at 35%-65%. Too high humidity may cause ink bleeding, while too low humidity may easily generate static electricity, adsorb dust and clog the nozzle.
3. Dust prevention measures:
The studio should be kept clean to reduce dust generation. Clean the floor and wipe the surface of the equipment regularly.
Avoid operations that generate a lot of dust or debris near the printing machine.
Cover the printing machine with a dust cover when not in use.
2. Operation specifications:
1. Avoid collision: When installing, disassembling or moving the nozzle, be careful to avoid collision or vibration of the nozzle and prevent damage to the internal structure of the nozzle.
2. Correctly turn on and off the machine:
When turning on the machine, turn on the computer first, then turn on the power of the printing machine, then turn on the heating switch and other related equipment, and finally set the necessary parameters and print the nozzle test strip. After confirming that everything is correct, start printing.
When shutting down the machine, first save the print settings in the print control system, then turn off the heating switch, platform suction switch, air drying switch, etc., and finally turn off the power switch of the device, and then turn off the computer.
Avoid exposing the nozzle: When not in operation, do not expose the nozzle to the air for a long time, especially in a high temperature and low humidity environment. If the nozzle needs to be temporarily idle, it should be properly placed in the nozzle protection device or ink stack to keep the nozzle moist and prevent the ink from drying and clogging the nozzle.
3. Check before printing: Before printing, make sure that the height between the bottom plate of the trolley and the printing medium is appropriate to avoid scratching the nozzle and damaging the nozzle during printing.
4. Avoid mixing inks: Do not mix two inks with different configurations to avoid changing the color and quality of the ink, causing nozzle clogging or affecting the printing effect. If you need to change the ink brand or model, you should first thoroughly clean the nozzle and ink system.
5. Print test strips regularly: Even when there is no actual printing task, it is recommended to print the nozzle test strip regularly (such as at least once a week) to check the inkjet condition of the nozzle. If you find that the nozzle detection is abnormal or the printed image is defective, you should enter the cleaning process in time.
6. Avoid frequent cleaning: Although cleaning the nozzle is an important part of keeping the nozzle working properly, it should not be cleaned too frequently. Excessive cleaning may damage the nozzle and shorten the life of the nozzle. Generally speaking, cleaning is performed only when the nozzle is obviously clogged or the print quality is reduced.
3. Nozzle cleaning:
1. External cleaning: Regularly (such as once a week) use a clean and soft damp cloth or cotton swab to gently wipe the nozzle surface and the surrounding protective block to remove dust, ink stains, etc. Be careful not to wipe the nozzle part of the nozzle directly to avoid damaging the nozzle. Do not use sharp or rough objects to clean the nozzle.
2. Internal cleaning: If the nozzle is seriously clogged, internal cleaning is required. This usually requires the use of special nozzle cleaning fluid and tools. The specific operation method is as follows:
Prepare appropriate cleaning fluid and tools such as medical syringes.
Pour an appropriate amount of cleaning fluid into a clean container.
Carefully remove the nozzle from the printing machine, taking care not to touch the electrical contacts and nozzle parts of the nozzle.
Immerse the nozzle of the nozzle in the cleaning fluid for a period of time (depending on the blockage, generally ranging from a few minutes to half an hour), allowing the cleaning fluid to dissolve the dried ink that blocks the nozzle.
Use a syringe to absorb the cleaning fluid, and then slowly inject the cleaning fluid into the ink inlet of the nozzle, so that the cleaning fluid passes through the channel inside the nozzle and flushes out the blocked impurities. Be careful not to inject too much pressure to avoid damaging the internal structure of the nozzle.
Repeatedly rinse several times until the cleaning fluid sprayed from the nozzle is clear.
Take the nozzle out of the cleaning fluid and gently absorb the cleaning fluid on the surface of the nozzle with a clean non-woven cloth or paper towel, but do not wipe the nozzle part.
Allow the nozzle to dry naturally or blow dry with a low-temperature hair dryer (the temperature should not be too high to avoid damaging the nozzle), and then reinstall it on the printer.
4. Ink management:
1. Use high-quality ink: Choose ink that is reliable and suitable for the nozzle of the printer. Poor-quality ink may contain impurities or particles, which can easily clog the nozzle, affecting the printing quality and nozzle life.
2. Regularly replace ink cartridges or ink capsules: According to the frequency of use of the printer and the ink consumption, replace the ink cartridges or ink capsules regularly (such as every certain amount of printing or time) to ensure the stability and quality of the ink supply.
3. Prevent ink from drying up: If the printer is not used for a long time, measures should be taken to prevent the ink from drying up and clogging in the nozzle. The nozzle can be moisturized every once in a while (such as every few days). The specific method is: use a special moisturizing liquid or cleaning liquid, through the nozzle cleaning function of the printer or manual operation, let a small amount of moisturizing liquid or cleaning liquid pass through the nozzle to keep the inside of the nozzle moist.
5. Other precautions:
1. Anti-static protection: In a dry environment, the printing machine is prone to static electricity, which may absorb dust and interfere with the normal operation of the nozzle, or even damage the nozzle. To reduce the impact of static electricity, the following measures can be taken:
Ensure that the printing machine is well grounded. Use a power cord with a grounding plug and connect the grounding end of the printing machine to a reliable grounding device.
Maintain the humidity of the working environment, such as using a humidifier and other equipment to increase the air humidity.
Avoid using items that are prone to static electricity near the printing machine, such as plastic film, chemical fiber fabrics, etc.
2. Regular inspection of parts: Regularly check the relevant parts of the nozzle, such as scrapers, ink pads, etc. The scraper is used to clean the surface of the nozzle. If the scraper is worn or deformed, it may not be able to effectively clean the nozzle and needs to be replaced in time. The ink pad is used to absorb excess ink sprayed by the nozzle. If the ink pad is saturated or dirty, it will also affect the printing effect of the nozzle and should be cleaned or replaced regularly.
3. Record maintenance: Establish a nozzle maintenance record file to record the time, content, cleaning fluid and tools used, and status of the nozzle for each nozzle maintenance. This can help you track the usage and maintenance of the printheads, identify problems in a timely manner and take appropriate measures.