SYSTEM FEATURES
21 May, 1999
2-30
2.3 SYSTEM FEATURES
2.3.1 ENERGY SAVER MODES
In normal mode (during operation) or energy saver mode level 1, the main CPU
monitors and controls the machine. The fusing lamp is either turned off or
maintained at the standby temperature (80
°
C), depending on the User Parameter
Switch 05 bit 6 setting.
In Energy Saver Mode, level 2 (also known as the 2-watt Energy Saver Mode), the
main CPU and DC power supplies are shut down. The Energy Saver CPU monitors
the Energy Saver key, incoming calls, the document sensor, and the PC interface.
When the Energy Saver CPU detects activity at one of these, it activates the +5V
supply to start up the main CPU and other power supplies.
Normal
Level 1
Level 2
Main CPU
ON
ON
OFF
Energy Saver CPU
OFF
OFF
ON
LCD/LED
ON
OFF
OFF
Energy Saver LED
OFF
ON
ON
+5V Power Supply
ON
ON
OFF
+24VM Power Supply
ON
ON
OFF
Fusing Lamp
ON
80
°
C or OFF
OFF
The fusing lamp is turned off as the default setting for energy saver mode level 1.
When the energy saver timer expires, the machine automatically goes into Energy
Saver Mode level 1 to keep the cooling fan going. When the fusing temperature
has fallen down below a certain threshold, the machine enters Energy Saver Mode
level 2.
Cross Reference
Energy saver timer initial setting: System Switch 0B, Bits 2 and 3
(1 minute, 3 minutes, 5 minutes, or Unlimited: Timer disabled)
Going to Level 2 Mode from Level 1 Mode
The machine will not go into Level 2 Energy Saver Mode if one of the following
conditions exists:
•
Either a TX/RX file is stored in the memory.
•
SAF memory not empty
•
Mechanical error(s)
•
The NCU is off-hook
