The toner is electrostatically transferred to the paper. Finally, heat and pressure fuse the toner to the paper by melting and pressing a wax contained in the toner. Regarding page description languages, two are de facto standards for laser printers. PostScript , developed by Adobe Systems, is the standard for Macintosh computer printers. Laser printers transfer the page as a whole to the drum, treating a page and the text it contains as one large graphic image.
Laser printers are relatively fast and quiet and produce sharp, high-quality text and graphics.
Laser printers come with one or more Fonts built into their hardware. These are called Resident Fonts , or internal or built-in fonts. You are not limited to your laser printer's resident fonts, however. You can print with a virtually unlimited number of fonts by Downloading fonts into your laser printer or by inserting Font Cartridges , ROM boards hardwired with one or more fonts. The more memory a printer has, the more fonts can be downloaded at one time.