Canon L240 - Manual (Page 204)

C-4 Options Appendix C
Maintaining Your Handset
To maintain your handset in top working condition, be sure to follow these
guidelines:
•
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 since they may enter the holes on
your handset and cause damage.
• Use a damp cloth to clean your handset.