Laser Optics
• Turn off the main power switch and unplug the printer before you do the procedures in this section.
Laser beams can cause serious eye injury.
Caution Decal Locations
The caution decal is attached as shown below
• Make sure to turn off the main power switch and disconnect the power plug from the power outlet
before you do any disassembly or adjustment of the laser unit. This printer uses a class 3B laser beam
with a wavelength of 648 to 663 nm and an output of 9 mW. The laser can cause serious eye injury.
LD Unit
Replacement
• Print the SMC report with SP 5990 2 before you replace the LDU.
3. Replacement and Adjustment
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