1.2 External Description
Table 1–3 Printer Components: Inside View
Component
Function
!
Fusing unit
The fusing unit cleaning pad is accessed through the left
exit side door. The customer should replace the cleaning
pad whenever they install a fresh developer unit. A
customer services technician must replace the fusing
unit after 300,000 pages.
"
Transfer and
separation
charger
The charger snaps into place. To prevent image defects,
the customer can remove and clean the charger.
#
Print density
adjustment knob
Turn right to increase toner and darken the print. Turn
left to decrease toner and lighten the print.
$
Photoreceptor drum
A latent image is produced by the laser beam on the
light-sensitive surface of the drum. Because the drum is
light-sensitive, it should not be exposed to ambient light
for more than 10 minutes. The electronic device encased
in the print drum contains ID and status information. See
Table 3–1 for more information.
%
Developer cartridge
or unit
This user-replaceable component contains the developer
roller and the toner cartridge. The electronic device
encased in the developer cartridge contains ID and status
information. See Table 3–1 for more information.
&
Toner cartridge
The mechanical agitator in each toner cartridge evenly
distributes the toner and feeds toner into the developer
roller. The electronic device encased in the toner cartridge
contains ID and status information. See Table 3–1 for
more information.
1.3 Cassette Feeders
The upper and lower cassette slots, shown in Figure 1–2, can accept fixed-size
or adjustable cassettes.
Each paper cassette holds up to 250 sheets of 80 g/m² (20 lb.) paper.
Appendix B lists the paper specifications that ensure good print quality
and minimal paper jams.
Physical and Functional Description 1–7
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