Handling The Laser Unit - Canon iR4570 Series Service Manual

Chapter 1
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A different description may be used for a different product.

1.2.5.3 Handling the Laser Unit

0007-3176
iR2270 / iR2870 / iR3570 / iR4570
If you must service the area around the machine's laser unit, be sure to take full care to avoid exposure to laser light:
do not insert a tool (e.g., screwdriver or those with a high reflectance) into the laser path; also, remove watches, rings,
and the like before starting the work, as they reflect laser light.
The machine's laser light is red in color, and an appropriate label ([1], [2]) is attached to all covers that can reflect
laser light. Keep also in mind that the machine's laser unit cannot be adjusted in the field.
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