Drum core, that is, OPC is an abbreviation for organic photoconductor, also known as photosensitive drum; OPC drum is the use of OPC material coated on the surface of the conductive aluminum tube to form a photoelectric conversion device, which is characterized by the dark insulator , Can maintain a certain electrostatic charge, when a certain wavelength of light irradiation, into a conductor, the release of charge through the aluminum-based, the formation of electrostatic latent images, it is the core of the laser machine parts. Every printer consumables have the drum core, including hp toner cartridges, Brother toner cartridges, Dell and Canon toner cartridges and so on.

Toner drum Introduction
Drum core is coated with a light guide material aluminum alloy surface, in the dark for the insulator, exposed parts of the conductor. When the laser beam emitted by its exposure, the point of exposure information dot matrix formation of electrostatic latent images. Work can not only take both ends of the drum can not touch the coating part, to avoid causing printing defects.

Drum maintenance

1. Do not touch OPC drum surface by hand;

2. Do not use chemical reagents (such as alcohol) to wipe OPC drum surface;

3. Do not bump the OPC drum surface with hard objects;

4. Be careful not to let staples like office supplies with the print media into the printer;

5. Remove the toner cartridge from the machine or remove the OPC drum and place it in a dark place, preferably with a newspaper or other cover. If the drum core surface scratches, hit the paper will have black marks;

6. Use uniform fine quality toner, because bad toner will wear bad drum core.
Drum core role

From the basic structure of the laser printer and imaging principles to see the role of Drum core:

From the working principle of imaging, laser printer imaging is the first computer to convert the print signal into a pulse signal, and then sent to the laser. At this moment, the charging roller of the laser printer has finished charging the surface of the drum core evenly, the laser injects the laser to cancel the charge of the image area on the drum core, thus forming an invisible electrostatic image on the drum core and passing the toner on the magnetic roller through the static electricity Principle adsorption to the drum core, this time will be able to use the naked eye to observe the image on the drum core. After the transfer by the transfer roller, due to the transfer roller with a voltage higher than the voltage on the drum core, the toner on the drum core is pulled onto the paper, this time the paper has formed we want to print Graphic, but the toner like the printer toner- hp 202a is floating on the paper surface, the hand can gently wipe off, so through the fixing, that is, after heating and pressure to melt the toner into the fiber paper, and finally the entire imaging process Will achieve.