TA Triumph-Adler DC 2045 - Manual (Page 41)

Section 4 BASIC OPERATION
4-11
If you press the [Energy Saver] key, even while the main switch is still
turned ON, the copier will enter the energy-saving preheat mode.
When the copier is in this preheat mode, the light the lamp in the
[Energy Saver] key will be the only lit indication on the operation
panel.
To resume copying after the preheat function has been activated,
press the [Energy Saver] key once again.
NOTE
It is possible for you to change the amount of time that will elapse
until the preheat function engages when no operation has been
performed on the copier. (See “Auto preheat time” on page 7-26.)
5. Energy-saving preheat function 6. Auto shut-off function
This function automatically turns the main switch OFF ( O ) if no
operation has been performed on the copier for a certain period of
time (15 to 240 minutes). When you want to make copies again,
simply turn the main switch back ON ( | ).
* The factory default setting is for the auto shut-off function to engage
after 90 minutes.
● More about the auto shut-off function
The auto shut-off function is a power-saving feature which
automatically turns the main switch to the copier OFF ( O ) when a
certain time elapses without any operation being performed.
Copiers are generally in a standby mode more than they are in actual
operation, so power consumption in the standby mode occupies a
large part of overall consumption. Having the copier turned OFF ( O )
automatically after a certain amount of time reduces unnecessary
power consumption in the standby mode or at night if the copier
happens to be left on accidentally. The result is a lower electricity bill.
NOTE
In order to change the amount of time that will elapse before the auto
shut-off function engages, see “Auto shut-off time” on page 7-25. In
order to disable the auto shut-off function, see “Auto shut-off ON/OFF”
on page 7-32.