激光打印机字迹有重影现象（Laser printers have ghosting）.doc

激光打印机字迹有重影现象（Laser printers have ghosting） The causes and solutions of ghosting in laser printers First, the reasons for ghosting The imaging principle of a black and white laser printer is to heat and pressurize the carbon powder attached to the printing paper through the heating component so that the toner is tightly attached to the printing paper. If the printed document is subject to ghosting, the problem may lie in three aspects: one is the quality of the paper used; the other is the quality of the carbon powder in the toner cartridge; the two is the failure of the heating element of the laser printer (three). Two, solutions In view of the above three problems, first of all should use good quality paper to print again, to see if there is still ghosting. If there is still a heavy film, you should confirm that the toner in the toner cartridge is the original genuine toner. As in the use of high quality printing paper and original toner case, still print ghosting, then the reason should be the laser printer heating component surface is destroyed, toner touch heating components, resulting in print ghosting. When there is a hardware failure, you need to repair the printer. Three, the cause of the failure So why are the surfaces of the heating components of the laser printer damaged? There are three main reasons: 1. filling toner Some filling carbon powder in the size of particles, hardness, melting point and other aspects of the original toner has a big gap, it is very easy to cause damage to the heating components of the printer. 2. paper problems To save paper, many users print again using printed paper that has already been used. While using the paper again, forget to remove the book with the book, nail or not bound together paper, these books nails easily destroy the heating components of the printer. Or some labels, paper, and sulfuric acid are used when printing, and this kind of paper is easy to damage the surface of the heating assembly. 3. cardboard problem