Digital Prints

66
Mastering Digital Printing
dry, plastic-based pigment toner and then transfer the image to an intermediate transfer
belt and then to the paper where it is fused. Other laser printers transfer the toner directly
to the paper without the intermediate step.
laser
developer
rotating mirror
toner
transfer belt
laser
corona wire
drum
Older technology devices image one layer/color at
a time; the trend now is to “single pass” printing,
which speeds up the process considerably.
Maximum output size is typically 12 × 18 inches,
although the Xerox Phaser 7750 can handle 4x6inch
postcards up to 12x47-inch banners. And in
some printers, laser imaging is replaced with lightemitting
diodes (LEDs).
Most color lasers these days offer up to 1200 × 1200
dpi resolution and use their own combinations of
stochastic and halftone screening for color rendering.
(See earlier discussion about stochastic and
halftone screens.)
Examples of electrophotographic printers include
color lasers from the Xerox Phaser, Canon CLC,
and Konica Minolta Magicolor lines.
Xerox Phaser 7750 color printer.
Courtesy of Xerox Corporation
fuser
Figure 2.20 Single-pass, color laser
print technology by Xerox.
Courtesy of Xerox Corporation