Acer S1212 - Manual (Page 38)

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Note 4: Other notes about using the pen
1. Avoid standing too far from the screen. The closer you are to the screen,
the better performance the pen has.
2. Hold the pen the way you hold a remote control or a pen.
3. A full battery charge takes 3-4 hours and will allow 30 hours non-stop use.
The battery is only rechargeable, and is not user serviceable or user
replaceable.
4. Avoid shadows! The pen cannot work if its tip is in a shadow or it is
pointing at a shadow.
Management
ECO Mode
Choose "On" to dim the projector lamp, which will also
lower the power consumption, reduce noise, and extend
the lamp life. Choose "Off" to return to the normal mode.
High Altitude
Choose "On" to turn on the High Altitude mode. When
this function is turned on, the projector fans operate at full
speed continuously to cool down the projector’s
temperature.
Turn Off Mode
• Instant Off: Enables you to turn off the projector
immediately without fan cooling process by pressing
the power button twice.
• Instant Resume: Enables you to restart the projector
immediately within 2 minutes after turning it off.
Auto Shutdown
(Minutes) The projector will automatically shut down while there is
no signal input detected after the time you set.
Lamp Hour Elapse Displays the lamp’s elapsed operating time (in hours).
Lamp Reminding
Choose this function to show or hide warning message
when the changing lamp message is displayed. The
message will show up 30 hours before end of life.
Lamp Hour Reset
Press after choosing "Yes" to reset the lamp hour
counter to 0 hours.