the laser dot of green laser will be concentrated

This includes all the commands of the work to be performed to inform the printer - what paper to use, how to set up the page format, how to deal with fonts. Controller in order to use these data, the data must be received in the correct order. Raster Image Processor. Construct the data, the controller began to generate the entire page. It will set the text margins, and arrangement of words and placed all the images. After the page arrangement, Raster Image Processor (RIP) to get the page data, either for the entire page, and can also access, then the page is divided into an array of tiny point. So that the laser dot of   green laser   will be concentrated.
As we will see in the next section, the printer requires page must use this format, so that the laser can be written to the drum. In most laser printers, all print jobs in the controller will be saved to its own memory. This allows the controller to different print jobs into a queue, in order to process a print job. In addition, multiple copies if you want to print the document, this method can also save printing time, because the host only needs to send a data to. Laser components. The printer's laser system is responsible for the drawing of the page, so it - or laser scanning assembly - must be very precise. So the stargazer can use  green laser pointer  to point and show the star to others very clearly.
The traditional laser scanning assembly includes: laser receives the page data - to form a small point of the text and images - one to receive a horizontal line. When a light pulse beam in the lateral movement of the cartridge, the laser will be issued for each point you want to print, for a blank area of the point is not to issue any pulse. Laser itself does not actually move the laser beam. In contrast, the laser beam through the side of the movable mirror reflection to the cartridge. When the mirror moves, it will reflect the laser beam and make it through a series of lenses. The system can compensate for image distortion caused by constantly changing the distance between a point on the mirror and drum. The customer can open  green laser pointer  from the middle part of the laser pointer.
Laser printer how to "write" page. Laser components only move horizontally on a flat surface. After each horizontal scan, the printer will drum to move a scale, so that the laser assembly can draw the next line. The speed at which a small print engine computer to perfectly perform all of synchronous operation. Some laser printers use a row of light-emitting diode (LED) to write the page image, instead of using a single laser. The location of each point has its own dedicated light, which means that the printer's print resolution is fixed. Compared with the real laser components, the lower the manufacturing costs of these systems, but the print results are poor. Typically, you will only find some cheap printer this system. This  green laser pointer  also has the power of 200mW and wave length of 532nm.
The laser printer works somewhat similar to a photocopier, but there were significant differences in some aspects. The most obvious difference is the source of the image: the copier to scan through the images reflected light images, laser printers are digital format to receive image data. Another major difference is the way to create a static image. Copier paper to light reflection, exposure to the light of the white areas will be reflected to the photoreceptor, and the exposure to the black areas of the light will be absorbed. In this process the "background" discharge, electrostatic image retains the positive charge. This method is called "write white". The laser head of  green laser pointer  can make the laser pointer more attractive and functional. The green laser beam is easier to be influenced by the cold ambient environment.