Startup Failure Analysis Policy - Canon imageRUNNER ADVANCE C5255 Series Service Manual

Startup Failure Analysis Policy

Startup Failure Analysis Policy describes troubleshooting related to "Execution Flow for
Control Panel Startup Failure" for the All-night Power Supply (3.3V) and 12V Power Supply.
If the host machine does not start successfully even when its Power Switch is turned ON,
identify the location of the failure by referencing the following diagram.
Select the appropriate failure location identification procedure based on the display status
of the Control Panel.
Preconditions
If the following two parts are not operating with the main power turned ON, it is likely that a
failure has occurred.
• Control Panel Main Power LED (All-night Power Supply 3.3V system)
• Rotation noise of the motor at warm-up rotation and activation of the Control Panel
Backlight (12V system)
Power-On
Not lit
Lit
Solid black Only the bar is displayed
"NG" is displayed
as a result in the startup system
failure diagnosis
No
Flow A:
Execution Flow for Control Panel Startup Failure
Memo:
• It may take about 5 minutes or more to display E 602-0001.
6
Troubleshooting > Startup System Failure Diagnosis > Startup Failure Analysis Policy
Flow A:
Execution Flow for Control Panel Startup Failure
The logo is displayed Display of E-code
Procedure A:
Yes
Detailed Procedure
Refer to the error code
of Startup System
correspondence table
Failure Diagnosis
for countermeasures
Countermeasures related to system software
- Reinstall the system.
- Replace the HDD.
6 Troubleshooting > Startup System Failure Diagnosis > Startup Failure Analysis Policy
Structure overview of each flow
Flow A: Execution Flow for Control Panel Startup Failure
Flow E:
12V Power Supply
System Flow
Warm-up rotation failed
(Check the 12V Power Supply) Check the
12V power supply
Flow B: Control Panel 12V Check Flow
Flow C: Main Controller Analysis Flow
Flow F: Connector Disconnection Flow
Flow G: Execution Flow of Startup System Failure Diagnosis
F-6-140
Flow D:
All-night Power Supply
(3.3V) System Flow
Control Panel LED activation failure
(Check the Control Panel
Main Controllers /All-night Power Supply (3.3V))
Check whether the
All-night Power Supply (3.3V)
cable is trapped
Control Panel
6-108
F-6-141
6-108