Cleaning The Optics - Trotec ProMarker OEM Operating Manual

Maintenance
10.3

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 tissue 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.
52 ENGLISH (Translation)