It is the transmitting terminal of laser pointer

 laser pointer can help or assist himself or herself out when emergent
Generally speaking, the printer using the PCL language document processing text or some of the common office applications with a very clear speed advantage in these applications, the print quality and printer using the PostScript language gap. Printer using the PostScript language is slower print speed in common office applications, but the handling of PDF files in Photoshop and other software to print large graphics image files has a certain speed advantage, while its graphics performance accuracy, color performance accuracy and character performance accuracy than the PCL language advantage. Therefore, the PCL language is more suitable for the ordinary business office applications. It is the transmitting terminal of  laser pointer .
The PostScript language is more suitable for graphics and color accuracy requirements of professional applications. Embedded languages. Embedded language for each command are prefixed with a signature (such as ESC), in order to show that the string is a command rather than the general print data. Embedded language page description language so complicated, it is applicable to describe the relatively simple document. Embedded language is initially designed for dot matrix printer development, widely used in industrial customers. The development of technology and social progress, more and more industries clients want to replace dot matrix printers with laser printers, and asked not to replace the system, the resulting embedded language was introduced into the simulation language extended family of laser printers.  laser pointer can help or assist himself or herself out when emergent.
A group based on the HP, XEROX, KONICA-MINOLTA printing technology as the leading color laser (Laser), and the other is based on OKI and other vendors as leading LED (Light Emitting Diode) imaging printing technology. Compared to color laser printers we are familiar with the LED color printing with more high-speed printing, miniaturization, more environmentally friendly characteristics. But the cost of maintenance or higher than an ordinary laser printer. Color printer based on LED technology, in many occasions with the color laser printer without distinction, but in fact, the LED printer is to use a fixed set of LED optical components to scan the sensor imaging, stimulated with color, laser beam scanning is essentially difference.  laser pointer  can serve as laser indicators.Canon printer market share in three. The face of fierce market competition, Aoki, Masatoshi, Canon (China) Co., Ltd., vice president of rhetoric: "Canon's goal is 2005, the full range of products to achieve sales".