Ricoh D131 - Laser Unit; Caution Decals

Laser Unit
D131/D132/D133 4-28 SM
4.5 LASER UNIT
 Turn off the machine and unplug its power cord before performing any procedure in this
section. Laser beams can seriously damage the eyes.
 This laser unit uses four laser beams produced by a Class IIIb LDA with a wavelength of
660 nm and intensity of 15 mW. Direct exposure to the eyes could cause permanent
blindness.
 Before performing any replacement or adjustment of the laser unit, push the machine
power switch to switch the machine off. Then unplug the machine from the power source.
 Do not touch the machine for 10 minutes. This allows enough time for the fusing unit to
cool and for the polygon motor to stop rotating.
 Never power on the machine with any of these components removed: 1) LD unit, 2)
polygon motor cover, 3) synchronization detector.
4.5.1 CAUTION DECALS
Two caution decals are provided for the laser section.