Figure 12-11.A daisy wheel.
Laser printers are a type of electrostatic printer that
produce a very high resolution print on plain paper.
Laser printers are classified as page printers; that is, they
print a whole page at a time. Laser printers can print
from four to eight pages per minute with a resolution of
300 to 600 dots per inch (dpi).
The development of a laser engine by Canon
U. S.A., Inc., is largely responsible for the laser printers
Figure 12-12.A daisy wheel print mechanism.
popularity and affordability. The Canon engine
combines the print drum, toner, and other parts into a
single, easily replaced disposable cartridge.
Laser Print Cycle
The laser printers disposable cartridge is the heart
of the printers system. The cartridge contains the print
drum, primary corona wire, a supply of toner, cleaning
blade, erase lamp, and rollers. The laser printers image
formation process is illustrated in figure 12-13.
Figure 12-13.A laser printers image formation process.