laser printer maintain manual.

follows to you know how to maintain a laser printer.Although many models of laser printers , but because it works and materials used are basically the same, but some specifiions is different , so, for eral maintenance of laser printers , are all suitable for a variety of laser printers, but there are some special the difference only.1 wire maintenanceBecause of residual toner inside the printer , dust and scraps of paper and other debris, charging , transfer, separation and elimination electrode wire will be contaminated , the voltage drop , which will affect the normal work performance. In eral, if the charge transfer electrode wire soiled waste toner , paper dust , etc., will print out enough ink printed pieces , or even very pale , this is mainly due to the charge on the drum after the wire is dirty enough Therefore, the voltage of the latent on the drum it produces insufficient suck less toner , lving contaminated wire transfer voltage is not enough, when the paper through the contact paper and toner cartridges is not tight enough , lving the transfer to the paper the toner is not enough , so will the output of the pattern is too light . In addition , the transfer wire ( slot ) pollution also causes the output pattern on the back of dirt, because when you have to go through the transfer pattern output wire slot. The elimination of pollution will cause the electrode to poor separation of paper jams and other faults , eliminate pollution will cause the electrode on the residual toner cartridge clning is not cln , so that the output of a serious pattern of bottom ash . Maintenance should carefully remove the wire electrode wire assembly ( Some printer models do not have to remove the machine wire , can be clned directly on the machine ) , the first brush with the brush attachment on the foreign body , and then after their cotton flower carefully and tly wipe cln.2 Maintenance laser scanning systemWhen the laser scanning system and the various working laser lens is dust and other pollutants , will cause incrsed bottom ash prints , picture unclr. Available cotton flower will wipe them cln, but be careful not to change their original loion or to brk something .3 fuser maintenance partsFuser maintenance of the main part of the fixing hter roller ( including rubber roller ) , separation claw , thermistor and thermal switch .Maintenance of the fixing( 1 ) of the fixing roller of the hting roller may be hted glue layer after long-term use of toner , in eral, the hting roller surface should be very cln , if dirty, then it will affect the printing . If you print out proofs appr black block , black bars , as well as the graphic toner stick taken away, which mns the ht roller surface has been or injury, if minor, can be used after clning ( but not for lost parchment paper ) , if serious , only replace the hting roller . Paired with the hting roller rubber roller , also after long-term use glue Feifen , erally will not affect the output results when compared with a slight , but if severe, causes the output of the comp back dirty . When clning the hting roller and a rubber roller , cotton flower dipped in ethanol available and carefully wipe cln. But not too hard to wipe the ht roller , do not use more blades and sharp objects to scratch , to avoid damage to the fuser hting roller . And wipe the rubber rollers can be simpler , simply wipe the surface cln.( 2 ) thermal resistance and thermal switches thermistor and thermal maintenance switches are close to the hting roller member rly laser printer nr the ht roller mounted on the central portion , then improve the hting roller is mounted in the the two, both members usually need a lot to maintain, but to use a longer time ( output is larger ) printer , because the thermistor shell ( outer shell ) will pick up the waste toner , and some dirt on the impact its temperature sensor to sense the ht roller Wen Fasheng changes , so that the surface temperature of the hting roller is incrsed, which will affect the life of the first hot roller , aging and accelerated wr of the separation claw rubber roller member , plus large prehting time, thereby reducing the service life of the fixing tube . Secondly, the temperature is too high will affect the output of the paper curl , causing a paper jam , and sometimes even make sulfuric acid paper , coated paper , such as blistering and can not be used. Even cause serious when hted roller .Maintenance approach is to carefully remove the fuser , remove the thermistor and thermal switches , some with cotton dipped in alcohol to wipe cln its shell of dirt , the operation must be careful not to damage its shell . Then carefully put it back , be sure to pay attention to the distance and the ht roller thermistor installed when the temperature is too high so as not to damage components. erally, you want to try to contact thermistor abutting hted rollers, thermal switch may be appropriate open space some distance away .4 photoelectric sensor maintenancePhotoelectric sensor is contaminated , it will cause the printer to detect failure. If the manual feed sensor after being contaminated , the control system can not detect the printer has no paper signal , manual feed function will fail . Therefore should be used to wipe the cotton flower associated surface of ch sensor cln, keep them cln , and always have the sensor sensitivity.5 cartridges maintenanceLaser printer toner cartridges for organic silicon photoconductor , there is work fatigue, therefore , continuous working time can not be too long , if the output is large , may, after working for some time to stop and rest for a while and then continue output. Some users to work alternately with two cartridges , but also a way . As for cartridge maintenance , and can thus be :