4.Replacement and Adjustment
62
Laser Unit
Turn off the main power switch and unplug the machine before attempting any of the
procedures in this section. Laser beams can seriously damage your eyes.
Caution Decal Locations
A caution decal is attached 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 machine uses a class IIIB
laser beam. The laser can cause serious eye injury.
Laser Unit
1. Remove the top cover (Printer models: Top Cover, MF models: Top Cover).
2. Remove the laser unit [A].
After replacing the laser unit, check the registration by printing the test pattern. (Test Pattern
Printing)
Laser Unit Thermistor
1. Remove the top cover (Printer models: Top Cover, MF models: Top Cover).
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