Canon IMAGERUNNER 7086, Service Manual

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Chapter 10
10-7
10.4 Power Supply System
10.4.1 Power Supply
10.4.1.1 Overview of the Power Supply System
0011-3327
The machine's DC power supply is controlled by the DC power supply PCB and the relay PCB:
T-10-8
10.4.2 Backup Battery
10.4.2.1 Back-Up Battery
0011-3330
The machine's main controller PCB, DC controller PCB, and reader controller PCB are each equipped with
a lithium battery for use in the event of power failure and power plug disconnection.
T-10-9
Risk of explosion if battery is replaced by an incorrect type.
Dispose of used batteries according to the instructions.
10.4.3 Energy-Saving Function
10.4.3.1 Overview
0011-3331
1. Standby Mode
The machine is in operation or is ready to start operation, with all its loads supplied with power.
2. Power Save Mode
The machine deceases the control temperature while the fixing assembly is in a standby state according to
the selected power save rating (variable through 'change power save mode' in user mode; default: -10%),
thus decreasing the power consumption.
Conditions Initiating a Shift from Standby Mode (standby -> power save)
- press on the Power Save key
Conditions Initiating a Shift Back to Standby Mode (power save -> standby)
- press on the Power Save key
- press on the control panel power switch
3. Low Power Mode
The machine keeps the temperature of the fixing assembly low (140 deg C), with the reader unit and the
printer unit supplied with a reduced level of power.
Conditions Initiating a Shift from Standby/Power Save Mode (standby -> low power)
- after a specific period of time in standby/power save mode (variable through 'low power mode shift in-
terval'; default: 15 min)
PCB Description
DC power supply PCB - generates DC power from AC power
- protects against over-current
Relay PCB - generates DC power from DC power (24 V to 18 V)
- supplies DC power to loads
- protects individual loads against over-current
Main controller PCB dioxide manganese lithium battery (3 V, 1000
mAh)
DC controller PCB lithium battery (3 V, 600 mAh)
Life of battery main controller PCB: about 10 yr
DC controller PCB: about 10 yr
Replacement of battery battery cannot be replaced on its own in the field