Ricoh MPC 2800 AT-C2, Field Service Manual, Page: 192 / 856

Laser Optics
• Turn off the main switch and unplug the machine before beginning any of the procedures in this section.
Laser beams can cause serious eye injury.
Caution Decal Location
Caution decals are placed as shown below.
• Be sure to turn off the main switch and disconnect the power plug from the power outlet before
beginning any disassembly or adjustment of the laser unit. This copier uses a class IIIb laser beam
with a wavelength of 655 nm and an output of 7 mW. The laser can cause serious eye injury.
Laser Optics Housing Unit
• Before installing a new laser optics housing unit, remove the sponge padding and the tag from the
new unit.
• A new laser optics housing unit has a bracket to protect the LD units. When you install the new unit,
do not remove the bracket until near the end of the installation procedure (the correct time is stated
in the manual).
• This bracket protects a capacitor on the unit. If the bracket is removed too early, you could break the
capacitor on the corner of the main frame when you install the new unit.
4. Replacement and Adjustment
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