Although the model of the laser printer is much larger, because the material used is basically the same, only some specifications are different, so for the general maintenance of the laser printer, it is basically suitable for a variety of laser printers, just some special Differences. 1. Maintenance of electrode wires due to residual toner, dust, and papermatic electricity, charging, transfer, separation, and electrical electric wire will be contaminated, and affect normal operating performance. In general, if charging, the transfer electrode wire is contaminated with waste powder, paper ash, etc., which will make the printing print ink is not enough, even very light, which is mainly due to the shortage of toner cartridges after the electrode filament is insufficient. Therefore, it is not enough to the latent shadows generated on the toner cartridge, and the transfer electrode wire is contaminated and the voltage is not enough, then the contact of the paper and the toner cartridge is not tight when the paper is passed. The toner is not enough, so it will make the output of the output paper too light. In addition, the transfer electrode wire (groove) is severely contaminated, and the output of the output paper is also dirty because the paper is output, and the transfer electrode tank is passed. The power-saving electrode pollution will cause paper separation and generate paper paper, and the disintegrating electrode pollution will make the residual ink powder on the toner cartridge unclear, so that the output of the paper sample is severe. The electrode wire assembly should be carefully removed when the electrode is maintained (some models of the printer do not have to remove the electrode, and can be cleaned directly on the machine), first brush away from the foreign matter attached thereto, then use the degreasing cotton. Gently wipe clean carefully. 2. Maintenance of laser scanning systems When laser scanning systems and various working mirrors are contaminated with dust, the print is increased, and the image is unclear. They can be cleaned with skimming cotton, but should be careful not to change their original location or crush. 3. Maintenance of the maintenance of the fixer portion mainly has a fixing heating roller (including a rubber roller), separating claw, thermistor, and thermal switch. (1) Maintenance of the fixing roller fixing the fixing roller will be able to stick to a layer of toner after long-term use, in general, the surface of the heating roll should be very clean. If there is dirt, it will affect the printing effect. If a black block, black strip, and a graphic toner adhesive, which means that the surface of the hot roller has been or injured, and it can be used after cleaning (but not used for sulfuric acid paper) ), If it is serious, only the replacement heating roller is replaced. The rubber roller paired with the heating roller, which will also be bonded to the waste powder after long-term use. When it is slightly, it does not affect the output effect, but if it is severe, the output of the sample will be dirty. When cleaning the heating roller and the rubber roller, it can be cleaned with a degreasing cotton alcohol. However, it is not necessary to wipe the heating roller, and the blade and hinders should be avoided to avoid damage to the fixing heating roller. The wiping of the rubber roller can be simple, just wipe it on the surface. (2) The maintenance separation of the separation claw is tightly relying on the small claw of the heating roller, and its sharp claw is usually slightly touched with the heating roller, and the back and output sheets are long, and the time will take the outer layer. The layer is mapped, thereby attaching the waste powder cake, so that it will increase the frictional damage to the heating roller, on the other hand, the back-mucous powder is not smooth enough, block the transport of the paper, thereby The paper output is made into bending pleats, affecting quality, and even paper cannot be output here. Therefore, if you find that the output paper is wrinkled, you should pay attention to the cleaning separation claw. The method is to carefully remove the separation claws, carefully wipe it out of the waste powder cake, and carefully put the back of the back, and the steeds are generally not grinding. If we want to grind, be careful. After wiping clean, you can reload (mount each separation claw when loading it to make the wear of each place near).
(3) Maintaining thermistors and thermistors and thermistors and thermistors of thermistors and thermal switches are parts close to the heating roller, and the early laser printers are mounted in the center of the heat roller, and later improved is installed in the heating roller. Two heads, these two components can usually have no great maintenance, but in the use of printers that have long (larger output), the waste powder and some dirt, affecting the thermistor housing (outer shell) It induces the temperature to change the temperature of the thermal roller, thereby increasing the surface temperature of the heating roller, first affect the life of the hot roller, accelerating the aging of the rubber roller and the wear of the part of the rubber roller, plus Large preheating is equal to the life of the fixing tube. Second, the temperature is too high, which affects the paper, which affects the output, causing paper jams, sometimes even makes the sulfuric acid paper, copper paper, etc., and cannot be used. When the situation is severe, it will even make the heating roller burn down. The maintenance method is to take care of the stamp, remove the thermistor and thermal switch, wipe the dirt of the outer shell with cotton, and be careful when operating, do not damage its housing. It is then carefully replaced, and it must pay attention to the distance between the thermistor and the heat roller when installing, so as not to be too high damage parts. In general, the thermistor is to be contacted against the heat roller, and the thermal switch can be properly vacant. 4. Maintaining the optoelectronic sensor of the photoelectric sensor is contaminated, causing the printer to detect malfunction. If the manual feed sensor is contaminated, the printer control system detects that there is no paper, and the manual paper feed function is invalid. Therefore, it should be wiped clean by skim cotton, so that they remain clean and always have sensitivity. 5. The toner cartridge of the laser printer is the organic silicon light conductor. There is a working fatigue problem. Therefore, the continuous working time is not too long. If the output is large, you can stop going to take a while after a while, continue to output. Some users use two powder boxes to alternately work, and it is also a way. As for the maintenance and maintenance of the toner cartridge, it can generally be carried out: (1) Carefully remove the toner cartridge assembly, wipe the surface with a skim cotton, but it is not possible to prevent the toner cartridge surface. (2) Wipe the surface of the toner cartridge with a deprimatinous cotton toner cartridge. When wiping, a spiral scratched method should be taken. After polishing, immediately remove the cleaner with a degreasing cotton. (3) Use the gauze with talc to gently take a layer of talc powder on the surface of the drum to replace it. (4) It is usually noted when replacing the toner, cleans the waste powder in the waste powder collection, so as not to affect the output. Because the waste powder is stacked, the "leakage" phenomenon will appear, that is, an irregular black point, black block on the output (generally in portrait), if not eliminated, continue to use, for a while Severe bottom ash (and longitudinal scratches) will appear. The cause of this failure is that the first waste powder is full, so that the reproduction of the waste powder cannot enter the waste powder to create a warehouse, and the waste powder in the waste powder warehouse will continue to "squeeze" and produce "leakage powder". Then, since the waste powder contained in the dirt, the fibers, etc., the fiber is coarse, and the toner cartridge is rubbed for a long time, and it is getting tightening, the pressure is getting bigger and larger, and finally grinds the photosensitive film of the toner cartridge. The toner cartridge is it's broken. Therefore, the output paper sample ash is severe, since they have always been longitudinally friction, so longitudinal scratches can be seen in the bottom ash. Therefore, immediately clean the waste powder warehouse immediately when the output "leak powder" is found. Finally, it should be noted that the toner cartridge is cleaned to avoid light. 6. The maintenance of the sensor board and the transmitter lock is wiped with a soft cloth, and the silver-white long plate and the paper ash surplus on the transmitter lock are clean to ensure that the transmission is unobstructed. 7. The maintenance paper guide plate of the paper feed guide is located below the toner cartridge, and its effect is to transfer the paper through the toner cartridge to the fixing assembly.
