Copy machine use for a long time, in order not to affect the copy effect, usually need to selenium ( 硒) Clean up the residual toner of drum. Carbon powder polymerization toner used widely, because of the high cost, mainly used in the production of color toner. Cleaning it is mainly divided into two parts, one is carbon powder compact cleaning; The second is the charging roller ( gǔn) , magnetic roller clean. When cleaning drum unit, first to do is to pour clean waste cartridges cartridges and carbon carbon powder, then brush with brush gently drop away residue on the edge of the carbon powder compact carbon powder. We are also in the reach of the brush cleaning can use hair dryer ( 通风风扇) Clean waste toner. Reminds us that it is important to note: dry carbon cartridges toner residues at the bottom of the blower, there will be a lot of carbon powder dust, to prevent the pollution of other equipment, operation should be carried out in outdoor. After clean up the powder of carbon in carbon powder compact, around the carbon powder compact carbon powder, also need to clean. Following carbon ( C) Compact the waste toner cartridges and waste residue after cleaned up, but also on the charging roller, magnetic roller powder of waste residue to clean up, specific methods are as follows: the charging roller ( gǔn) With magnetic roller, want to find the charging roller and magnetic roller fixed first ( 固定的) Screw, with a screwdriver to unscrew the screw. Color toner in print, volatile due to residual monomer in the resin is heated, produces the pungent odor, therefore national standards and industry standards of toner TVOC has carried on the strict limits. So as long as you buy printer or nonconforming product quality, won't because printing produces gas harmful to health. Printer toner according to different requirements, the carbon powder production to develop in the direction of refinement, color and high speed. Carbon powder manufacturing mainly adopts FenSuiFa and polymerization. Will charge roller with magnetic roller carefully removed from the drum unit. Most of the charging roller at both ends with plastic ( Structure: synthetic resin, plasticizer, stabilizer, pigment) Gear ( 齿轮) Before, to wipe off charging at the ends of the roller gear. When clearing with cotton or soft cloth to clean up the waste powder on the charging roller. Clean up after charging will roll back on the drum unit box, and good at the ends of the screw.