Table of Contents
Advertisement
Maintenance
11.3
Cleaning the optics
This system is fitted with high quality optical components, which under normal operating conditions are maintenance
free for their lifetime. However, it may be necessary to clean output lenses, e.g. the scanner flat field lens (f-theta
objective) if it becomes covered in dust or fumes.
Notice
Never touch the optical components with your fingers! Oily or dirty hands may damage the lens surfaces.
Do not use any tools or hard objects to clean the surfaces. Scratches cannot be repaired.
Laser optics are highly sensitive and their surfaces are not as hard as traditional glass. They can also be
easily damaged by cleaning. It is therefore necessary to ensure that any dirt is removed using a suitable
suction device and that the surrounding area is cleaned regularly.
Small bellows should be used to remove dust.
Notice
Do not use compressed air as it contains small quantities of oil and water.
To remove larger pieces of dirt, only use a lens cleaning cloth with high proof (at least 98%) alcohol.
Notice
Do not dip the cleaning cloth in the cleaning solution. This contaminates the solution and makes it
unusable. Place drops of the solution on the cloth!
Apply the cleaning solution carefully in order to avoid scratching the surface of the lens.
Do not wipe the lens with a dry cloth. Do not touch the reverse side of the cloth. Dirt and sebum on the
fingers can be transferred to the lens by the cloth and cause damage.
Distribute the cleaning fluid carefully using small circular motions. Start at the center of the lens and move outwards to
the edge. Keep moving the cloth until the entire surface is clean.
Do not exert any pressure on the lens.
60
2. Remove both screws and open the cover.
Change the filter pad.
Advertisement
Table of Contents
