Outline - Canon ImageRunner iR8500 Series Service Manual

consumption in this mode is low. The machine will shift to either of the two depending on the setting or presence/absence of job.
Shifting condition (Standby/Power-saving/Low-power -> Sleep)
- When a specific period of time (which can be changed by operating "Auto Sleep Time" in User mode, 60 min. by default) has passed after the state of
standby mode continued for a certain period of time.
- When the power switch of the control panel is turned off on standby.
When the machine meets the shifting condition to sleep, it will shift to sleep mode after the exhaust fan drives for a specific period of time (6 min.) in
order to lower the temperature in the machine.
Returning condition to standby mode (Sleep -> Standby)
- When the power switch of the control panel is turned on.
5. Power-Off mode
The power-off mode is the state that the main power of the machine is switched off.
To return from the power-off mode, it is the only way that the main power is switched on.
When the main power is switched on, the machine will return to standby mode automatically.

11.4.4.2 Outline

iR105
The main controller PCB controls the power supply for the following 5 power supply modes except for power-off mode, initiated by turning off the main
power switch.
- Standby mode (normal operation)
- Power save mode
- Low power mode
- Sleep mode
- Off mode
11.4.4.3 Outline
/ iR8070
1. Standby mode
The machine in this mode is either in operation or in the state that it can start operation at anytime, and all of the power supplies are turned on.
2. Power-saving mode
Depending on the setting rate of power-saving (which can be changed by operating "Energy Saver Mode" in User mode, 10% by default), the machine in
this mode lowers the controlled temperature of the fixing assembly on standby, and that leads to reduce the power consumption.
Shifting condition from standby mode (Standby -> Power-saving)
- When pushing down the power-saving key.
Returning condition to standby mode (Power-saving -> Standby)
- When pushing down the power-saving key.
- When the power switch of the control panel is turned on.
3. Low-power mode
The machine in this mode is in the state that the temperature of the fixing assembly is lowered (140 deg. C), and that leads to reduce the power consumption
of the reader/printer assembly.
Shifting condition from standby mode/power-saving mode (Standby -> Low-power)
- When a specific period of time (which can be changed by operating " Low-power Mode Time" in User mode, 15 min. by default) has passed after the
state of standby/power-saving mode continued for a certain period of time.
Returning condition to standby mode (Low-power -> Standby)
- When pushing down the power-saving key.
- When the power switch of the control panel is turned on.
MEMO:
When "Low-power Mode Time" has the same setting value with "Auto Sleep Time" and the setting time has passed on standby, the machine will shift to
sleep mode (not to low-power mode).
4. Sleep mode
The machine has two types of sleep mode, one is "Sleep mode 1"; the power consumption in this mode is high, and the other is "Sleep mode 3"; the power
consumption in this mode is low. The machine will shift to either of the two depending on the setting or presence/absence of job.
Shifting condition (Standby/Power-saving/Low-power -> Sleep)
- When a specific period of time (which can be changed by operating "Auto Sleep Time" in User mode, 60 min. by default) has passed after the state of
standby mode continued for a certain period of time.
- When the power switch of the control panel is turned off on standby.
The machine will shift to sleep mode in either of the following two ways depending on the surface temperature of the fixing roller at the time of satisfying
the shifting condition to sleep.
<When the surface temperature of the fixing roller is 150 deg. C or less. >
-> The machine will shift to sleep mode immediately.
<When the surface temperature of the fixing roller exceeds 150 deg. C. >
-> After the exhaust fan drives for 15 min., the machine will shift to sleep mode.
Chapter 11
0006-9826
0008-9631
11-17