Canon FAX-PHONE B60 Instruction Book page 8

D. lf the producl does nol operate normally when lhe operating
instructions are followed. Adlust only those controls lhal are
covered by the operating instructions since improper adjustment of
other conlrols may resull in damage and will often require enensive
work by a qualified lechnician to restore the product to normal
ooeration.
E. lf the product has been dropped or the cabinet has been damaged.
F. lf the product exhibits a distinct change in performance, indicating a
need for service.