TA Triumph-Adler DCC 2526 - Manual (Page 40)

Section 4 BASIC OPERATION
4-6
CAUTION
If the copier will not be used for a short period of
time (overnight, etc.), turn the power switch OFF
({).
If it will not be used for an extended period of time
(vacations, etc.), remove the power plug from the
outlet for safety purposes during the time the
copier is not in use.