CHAPTER 3 MAIN CONTROLLER
3-15
COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
4.5 Low-Power Mode
In lower power mode, the temperature of the fixing assembly is lowered (140 °C); the
power to the reader unit and the printer unit is reduced to save on the power consumed by
the machine.
4.5.1 Shift from Standby Mode (standby → low-power)
A shift is made from standby mode to low-power mode under the following conditions:
• When standby mode continues for a specific period of time, and the selected time inter-
val (may be changed in user mode) has passed.
4.5.2 Shift to standby Mode (low-power mode → standby)
A shift is made from low-power mode to standby mode under the following conditions:
• When the control panel power switch (soft switch) is turned on.
• When PDL data is received form the network (parallel port; electrically speaking, the
control panel is off as in standby mode).
4.6 Sleep Mode
In sleep mode, only the +3.3V all-night (3.3 VB) power supply remains on. The CPU it-
self on the main controller PCB is at rest, stopping the program, and waits for an interrupt,
thereby reducing the power consumption.
This mode is used only when the machine is used as a printer equipped with a network
option and a PDL print option.
4.6.1 Shift from Standby Mode (standby → sleep)
A shift is made from standby mode to sleep mode under the following conditions:
• When the control panel switch (soft switch) is turned off.
• When standby mode has continued for a specific period of time, the selected time inter-
val (may be changed in user mode) has passed.
4.6.2 Shift from Low Power Mode (low-power mode → sleep)
A shift from low-power mode to sleep mode is made under the following conditions:
• When the control panel power switch (soft switch ) is turned off.
• When low-power mode has continued for a specific period of time, and the selected
time interval (may be changed in user mode) has passed.
4.6.3 Return to Standby Mode (sleep → standby)
A shift is made from sleep mode to standby mode under the following conditions:
• When the control panel power switch (soft switch) is turned on.
• When PDL data is received from the network (parallel port; electrically speaking, when
the control panel remains off as in standby mode).
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