Canon MF8580Cdw Service Manual page 42

2
Technical Overview > Controller System > Controls > Power-Saving Mode
■ Protective control
The low-voltage power supply has protective controls against excessive current and voltage,
which automatically detect excessive current or abnormal voltage to shut off the output
voltage for avoiding the power supply circuit failures.
In case the DC voltage output is not detected from the low-voltage power supply, the
protective control may be activated. Turn off the power switch and remove the AC power
supply from the inlet to settle load troubles. Once these are settled, turn on the power switch
again.
Another protective control is provided by 2 power fuses on the fixing power supply. These
are open when excessive current is detected to shut off power supply to low-voltage power
supply.
2 Technical Overview > Controller System > Controls > Power-Saving Mode
■ Power-Saving Mode
This is the function to save power consumed by the printer.
The table below lists various power-saving modes.
Power-Saving Mode
Stand-by at power-OFF on the reader
Power-saving at power-OFF on the reader and the display (LCD)
Sleep Sleep 1 at power-OFF on the reader, engine and the display (LCD)
Sleep 2 at power-OFF on the reader and the engine.
Sleep 3 (3W at power-off on the reader, the engine and the display (LCD)
sleep) The main controller enters the power-saving mode.
*
Automatic shutdown The Main Power Switch is turned OFF when a specified period of
time has passed (default: 4 hours)
after the machine has entered sleep mode (excluding sleep 2).
*: In the case of a model without fax for EUR (MF8540/MF8230)
Power-off
The automatic shutdown time has passed.
Power-on
Standby
The energy saver key is pressed.
Control Panel
The auto sleep time has passed.
Reader
Energy saver
The energy saver
Engine
key is pressed.
The energy saver
Controller
key is pressed.
Hook detection
* The reader is turned ON
only when it is used.
←A job is generated/completed.→
No service error (no error requiring a service visit) has occurred.
Status
Explanation
Service error
of the status
Power-on
Power-saving
Power-off
Service call
Sleep 1B Sleep 3
Non-all-night
24V OFF
Automatically shifted
depending on the conditions
Sleep 1A
The auto sleep
time has passed.
↓A job is
Non-all-night
generated
24V ON
/completed.↑
The energy saver key is pressed.
Hook detection
The auto sleep time has passed.
Sleep 2
2-13
T-2-10
F-2-13
2-13