Canon imageRUNNER ADVANCE 4551i Service Manual page 146

Image of
existing power supply
Image of power supply
for iR-ADV 4500 Series
Disconnect the plug from outlet or turn OFF the Breaker when performing work with the possibility to come in contact with the
PCBs above. PCBs may get damage. If a conductive material comes in contact with the PCB, short circuit may occur in the PCB,
and may cause damage on it.
The following illustration is used at the place where attention needs. When the following label is affixed, be sure to disconnect
the plug from outlet or turn OFF the Breaker.
In addition, quick startup is not performed under the following conditions.
At first startup after the AC Power Plug is connected to the outlet
Under the following conditions (settings), the machine always starts up normally (even quick startup is ON).
Either of the following devices is connected.
• The G3FAX Bord is connected.
• The coin vendor is connected.
When any of the following network settings is set to "ON".
• RARP
• BOOTP
• IPsec
• IPv6
• NetWare
• AppleTalk
Main SW
Relay
Relay
Power supply
Energized area when
the Main Switch is OFF
Main SW
Relay
Power supply
Quick Start
By turning OFF the Main Switch,
all power turns OFF
All-night
Power Supply
NOT All-night
Power Supply
Power is supplied to the All-night Power Supply
even if the Main Switch is turned OFF
Semiconductor SW
All-night
Power Supply
NOT All-night
Power Supply
Plug Off
133
2. Technology
All-night
Circuit
Main Controller PCB
All-night
Circuit
Main Controller PCB