Canon L250 - Manual (Page 272)

Maintaining Your Handset
Follow these guidelines to maintain your handset in top working condition.
¶ Do not leave your handset exposed to direct sunlight.
¶ Do not install your handset in hot or humid conditions.
¶ Do not spray aerosol polishes on your handset as they may enter the holes on your handset and
cause damage.
¶ Use a damp cloth to clean your handset.
Appendix B – Options
B-8