TA Triumph-Adler DC 2435 - Manual (Page 56)

Preparation before Use
2-10
Sleep and Auto Sleep
Sleep
To enter Sleep, press the Power key. Touch panel and
all indicators on the operation panel will go out to save
a maximum amount of power except the Main Power
indicator. This status is referred to as Sleep.
If print data is received during Sleep, the print job is
performed while the touch panel remains unlit.
When using the optional fax, received fax data is printed
out while the operation panel also remains unlit.
To resume, press the Power key. The machine will be
ready within 23 seconds.
Note that ambient environmental conditions, such as
ventilation, may cause the machine to respond more
slowly.
Auto Sleep
Auto Sleep automatically switches the machine into Sleep if left idle for a preset time in the Low Power Mode.
The default preset time is 45 minutes (for the 35 ppm model), or 60 minutes (for the 45 ppm or 55 ppm model).
Adjusting the Operation Panel Angle
Adjust the angle of the operation panel in two as shown
by releasing the operation panel lock lever.