Quick Startup - Canon imageRUNNER ADVANCE 4551i Service Manual

• IP Sec board is connected and the setting for IP Sec is activated.
System Performance Status
• An application is communicating via network (TCP connection on a port dedicated to CPCA / within 15 seconds after
reception of UDP).
• Either of SNTP, DHCP, DHCP6 or eRDS communication is in progress.
• A job is being executed/in standby (Print/Copy/SEND/FAX/Report/Forward/Save, etc)
• A FAX/IFAX communication is in progress.
• A phone communication is in progress.
• During distribution of device information
• During export/import by remote UI
• During execution of an Meap application which prohibits entering Deep Sleep
• During backup of Mail Box documents
• A file is being opened (read/written) in Settings/Registration > Access Stored Files > Network. (*Common with WebDAV
and SMB)
• Machine is operating with the printer/scanner function stopped.
• During transition to Service Mode screen/download mode
During timer processing
• The sleep mode exit timer is running (for 15 seconds after exiting Deep Sleep).
• The network timer is running (for the number of seconds set by Service Mode (Lv.2) > COPIER > OPTION > NETWORK
> WUEN-LIV (default is 15 seconds)).
• The wake up timer is running (for 10 minutes after receiving a wake up packet).
• The hard disk drive protection timer is running (for 12 minutes after exiting from Deep Sleep and the hard disk drive is
powered ON. However, after a printing, scanning, and fax job is completed, this timer is disabled.)
• Timer is running after link-up (for 1 minute after network communication starts since machine power-on).
• The sleep notification timer is running (for 10 minutes after notifying the network module of entering DEEP SLEEP.
However, when the network module responds, this timer is disabled).

Quick Startup

To realize faster startup, power configuration has been changed to always supply power to the All-night Power Supply PCB.
Thereby, the main menu can be displayed after 4 seconds from turning ON the Main Power Supply Switch.
Although when the Main Power Supply Switch is OFF, power is supplied to the following PCBs.
• AC Driver PCB
• All-night Power Supply PCB
• Main Controller PCB
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2. Technology