Laser printer maintenance common sense
Because of its fast and stable performance, laser printers are widely used in the field of business offices. Because business office directly affects the company’s operation and office efficiency, it has a significant impact on the company. Therefore, it is necessary to maintain common sense for laser printers.
1. Electrode wire
Electrode wire is an important part in the printing and imaging of laser printers. Due to long-term high-load use, the electrode wire of the printer will be contaminated by residual toner, dust or paper scraps in the printer. The direct consequence of this is to cause the voltage to drop, which in turn affects the normal operation.
In this case, the user should first clean the inside of the laser printer regularly, carefully clean the waste toner inside the machine compartment with a brush, and clean up the paper scraps left in the printer. After cleaning the inner compartment, carefully remove the electrode wire, first carefully remove the toner and paper scraps adhering to the electrode wire with a brush, and then gently and carefully wipe it with absorbent cotton. It should be noted that it must not be cleaned with solvents with corrosive liquids. In addition, if a neutral solvent is used for cleaning, it must be completely dry before starting to use.
2. Laser scanning system
The laser and working mirror in the laser scanning system are easily polluted by dust during use, which will lead to the bottom of the printed manuscript. Gray increases or blurs. At this time, the user can wipe them clean with absorbent cotton and neutral solvent. The original position of the parts must be removed during the cleaning process.
The fuser part is one of the most important parts of the laser printer. The main parts of this part are mainly the thermistor of the fuser heating roller and the thermal switch.
The fuser heating roller is susceptible to dust and waste toner during long-term use. The fixing heating roller contaminated with dust and waste toner may easily lead to irregular streaks such as black blocks and black lines in the printed manuscript. In this case, the user can carefully wipe the fixing heating roller clean with absorbent cotton dipped in absolute alcohol. However, in the process of wiping, the user must remember not to use force, let alone use sharp hard objects to forcibly remove the stains on the fixing heating roller. Because the fuser heating roller is a very fragile part, it is easy to cause scratches. So you only need to wipe it clean during the cleaning process.
After cleaning the fixing heating roller, the next step is the maintenance of the thermistor and the thermal switch. The thermistor and thermal switch are relatively close to the heating roller in internal structure. Because of high temperature and heavy load use, it is easy to stick waste powder and some stains on the thermistor housing. This will affect the thermistor’s sense of temperature, which will change the temperature of the heating roller, thereby increasing the surface temperature of the heating roller.
This will not only affect the life of the heat roller, but also increase the time for preheating, etc., thereby reducing the life of the fuser lamp. And the working temperature is too high, it is easy to cause the paper to curl and affect the output. The most common one is the common paper jam. Therefore, it is essential for the maintenance of thermistors and thermal switches. During the cleaning process, the user needs to use absorbent cotton dipped in some alcohol to wipe off the stains on the thermistor housing. Afterwards reinstall the thermistor carefully. In the process of installation, be sure to pay attention to the distance between the thermistor and the heat roller, so as not to damage the components due to the high temperature. Under normal circumstances, the user should contact the thermistor against the heating roller, and the thermal switch should be properly pulled away from the heating roller.
3. Photoelectric sensor
The photoelectric sensor is an important part of the laser printer. Once it is contaminated by dust or stains, it will cause the printer to fail to detect. Therefore, the user should regularly wipe the surface of the relevant sensors with absorbent cotton to keep the photoelectric sensor clean and ensure the sensitivity of the photoelectric sensor.
4. Toner Cartridge
The toner cartridge of a laser printer has a long continuous working time, but it is easy to cause damage to the toner cartridge in long-term use of aging. In order to prevent this situation from worsening, the user should regularly wipe the surface of the toner cartridge clean with absorbent cotton. However, be careful during the cleaning process to prevent scratches on the surface of the toner cartridge. In addition, the user should pay attention to cleaning up the waste toner in the waste toner collection bin when replacing the toner normally. Toner leakage occurs when too much waste toner accumulates, resulting in irregular black dots and streaks on printed documents. In severe cases, the photosensitive film on the surface of the toner cartridge will be worn out, which will seriously affect the printing quality and further lead to the scrapping of the toner cartridge.
Inkjet printer maintenance common sense
Inkjet printers are much more delicate than laser printers. In the maintenance process, in addition to the maintenance of the machine, it is necessary to ensure that the use environment is clean. This is mainly to ensure that the inkjet printer is in use, and the nozzles will not be blocked due to dust in the air.
1.Don’tExposing the cartridge to air for long periods of time
In the use of inkjet printers, be sure not to expose the ink cartridges to the air for a long time. Because of the physical properties of the ink, it is easy to cause the ink to dry up in the case of long-term exposure. Once the ink in the ink cartridge dries up, it will not only affect the normal use of the ink cartridge, but also affect the normal use of the nozzle during use. In severe cases, it will also lead to damage to the nozzle. Therefore, when the user starts to use the ink cartridge, try to keep it in regular use and do not leave it for too long.
2.Do not use flooding
Use inkjet printers as much as possible without flooding. Because ink is a special substance, the mixing of multiple inks is prone to impurity precipitation. The most direct impact of this precipitation is to cause damage to the nozzle. This kind of physical damage to the printhead generally cannot be recovered, and the fault can only be contacted by replacing the printhead.
3.When not in useRemove the ink cartridge and put it in the ink cartridge box
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When the inkjet printer is not in use, you should take out the ink cartridge and put it in the box of the ink cartridge, and keep the environment around the ink cartridge as constant as possible, and do not place the ink cartridge directly in a place with strong sunlight. Inkjet printers, on the other hand, need to be kept clean when not in use for a long time. It is best to put it back in the box and not to accumulate dust from long-term exposure to the air.
Common knowledge of dot matrix printer maintenance
Dot matrix printers are mostly used by industry users, so dot matrix printers are widely used in banking, securities, insurance, business, taxation, etc. industry. Although it is as widely used as the above two types of laser printers, in terms of application principles and categories, dot matrix printers are much more troublesome, so relatively more energy is invested in maintenance.
1. Place in a proper work environment,avoid direct sunlight
Because the dot matrix printer prints through a mechanical print head, in order to ensure the normal operation of the print head, the dot matrix printer must be placed in a stable, clean, moisture-proof, and non-acid-alkali corrosion-free working environment. And should avoid direct sunlight. Because most of the dot matrix printers are metal parts, the impact of the environment on the dot matrix printer is very large, which users need to pay attention to.
2. Regularly clean the dot matrix printer
Because most of the media printed by dot matrix printers are paper, and The printing process is touch printing through the printing needle, so there must be a lot of paper dust and dust in the needle type printer. The accumulation of these paper scraps and dust will affect the normal operation of the printer, so users need to regularly clean the dust and paper debris in the printer with a small brush or vacuum cleaner. And when conditions permit, the printer casing should be wiped with neutral detergent frequently.
3.Ensure the use of sanitation,Regular inspectionMechanical device
In the process of using the dot matrix printer, it is necessary to ensure the hygiene of the use environment as much as possible, and do not place some in the surrounding environment Hard objects can be transferred into the printer to damage the print head or circuit board. And after using it for a period of time, it is best for the user to regularly check the mechanical device of the printer to check whether the screw of the printer is loose or falling off, and whether the carriage guide rail bushing is worn. Whether the operation of the paper feeding mechanism, the character car and the ribbon transmission mechanism is flexible, if it is loose or inflexible, it should be tightened, replaced or adjusted immediately. Also, the length of the parallel interface cable of the dot matrix printer cannot exceed 2 meters. All kinds of interface connector plugs cannot be plugged and unplugged with electricity, so as not to burn the interface components between the printer and the host, and the power of the host and the printer must be turned off to prevent damage to the circuit board.
4. Don’tAdjust the density of printing easily
When using a dot matrix printer to print receipts or coupons, Do not adjust the density of printing lightly. Because adjusting the density is also adjusting the printing strength of the print head, excessive printing can easily cause damage to the print head, or a needle breakage failure. The position of the print head should be adjusted according to the thickness of the paper or the actual situation. And don’t draw paper during printing. Because the printing needle is likely to be scratched at the moment of paper extraction, which will seriously affect the use and lead to additional repair costs.
5. Do not touch, repair and swing during printing
When the dot matrix printer is working, do not touch the surface of the print head with your hands or repair, Swing, because the surface temperature of the print head of the dot matrix printer is high during the printing process, which is easy to cause injury. Moreover, swinging in the printing situation will hinder the movement of the carriage, and even cause the failure of some components. And to minimize the printer idling. The idling of the printer not only wastes power but also reduces the life of the printer, so try to ensure that the printer does not idle as much as possible.
Finally, it is necessary to regularly check the ribbon and the ribbon cassette. If the ribbon cassette is found to be too tight or the surface of the ribbon is fluffy, it should be replaced in time. Damaged will hang up the print needle.
Precautions for using the printer
1. If the printer generates heat, smoke, odor, abnormal sound, etc., please cut off the power immediately and contact the information personnel.
2. No other items are allowed on the printer. When the printer is not used for a long time, please unplug the power plug from the power outlet.
3. Just in case, when there is thunder nearby, pull out the power plug from the socket. If it is plugged in, the machine may be damaged.
4. Printing is prohibited when the printing paper and ribbon cassette are not set. The print head and platen roller can be damaged.
5. The print head is in a high temperature state. Do not touch until the temperature has dropped. Prevent burns and injuries.
6. Do not touch the metal parts of the print cable connector and print head. When the print head is working, do not touch the print head.
7. When the print head is working, it is forbidden to cut off the power.
8. Please do not disassemble, move or drag at will. If there is any fault, please contact the information staff.
9. It is forbidden for foreign objects (staples, metal pieces, liquids, etc.) to enter the machine, otherwise it will cause electric shock or machine failure.
10. Make sure that the printer is powered on normally and the data cable is connected to the computer before it can be turned on.
11. Do not move, drag, or turn off the printer when the printer is printing.
12. When the printing volume is too large, the printing volume should be kept within 30 copies and the printer should rest for 5-10 minutes to prevent the printer from being overheated and damaged.
13. When printing files, it is not allowed to use paper with high thickness (more than 80g), or wrinkled or folded paper.
14. If the printer is damaged by serious physical damage, man-made damage or not following the above operating specifications, the responsible person will be investigated.
