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Overview
Function Overview
Debug log is an integrated log for failure analysis that gathers logs prepared by the software modules in the device for debug purpose.
In the case of a field failure that is hard to be reproduced, this measure is intended to improve efficiency in failure analysis and reduce the time for failure support by collecting debug log at the user site (which was created immediately after the failure) and sending it to the R&D.
When the Canon quality-appointed staff determines the need for an analysis of firmware debug log by the R&D department, we ask the field to collect log for an investigation to determine the cause.
Effective Instances of Collecting Debug Log
The error occurs only at the customer site and cannot be reproduced by the sales company or the Canon staff who is in charge of quality follow-up.
When the error frequency is low.
When the error is suspected of links with firmware rather than a mechanical/electrical failure.
* Collection of Sublog is not necessary when the reproduction procedure is identified and the error can be reproduced by the sales company HQ or the Canon staff who is in charge of quality follow-up.
Types of Logs
There are continuous logs, event logs, and manual logs.
Type
Collecting method
Size of logs
Setting
Event log
Automatically recorded in accordance with the conditions specified in DEBUG-1.
Less than 500MB
Service mode Lev2: COPIER > FUNCTION > SYSTEM > DEBUG-1 > 3 (default)
3: Exception + E code + Reboot
Make movement same as 3 even if you change setting of it.
Manual log
Perform the following procedure.
1. Hold down the [Counter] button (10 seconds or longer).
2. Press 1 on the numeric keypad.
3. Press 2 on the numeric keypad.
4. Press 3 on the numeric keypad.
While logs are being obtained, the screen is locked. It takes approx. 3 minutes before obtaining the logs is completed and the user can work on the screen.
n/a
Conditions of Log Collection
Logs can be collected on a PCB-by-PCB basis. (SUBLOG, SUBLOG_RCON, SUBLOG_DCON)
Location
File name
Automatic collection
Manual collection
Logs generated while the host machine is
being operated.
Event log
Manual log
When an event has occurred
Main Controller
SUBLOG
Yes
Yes
Yes
Reader Controller
SUBLOG_RCON
No
Yes
Yes
DC Controller
SUBLOG_DCON
No
Yes
Yes
Collection of Logs
Connect SST or a USB memory device,
and select COPIER > FUNCTION > SYSTEM > DOWNLOAD > OK to collect logs.