Canon imageRUNNER ADVANCE C3500 III Series, Service Manual, Page: 332 / 1252

5. Collecting log files
Start the machine in download mode, and save (collect) the log files to a USB device or a PC.
CAUTION:
In the case of analysis using Sublog, the following information needs to be obtained together with the Sublog.
• Symptom that has occurred (from service technician's viewpoint as far as possible)
• Date and time of the event (from an hour before the event to an hour after the event)
• Reports (P-Print, HIST-PRT, job logs, communication management report, etc.)
• Printed data and original at the time of reproduction (depends on the trouble that has occurred)
Besides Sublog, the above-mentioned information is required due to the following reasons:
• Failures such as a process being stopped due to an error or an unintended behavior are easy to find, but failures such
as "the behavior is slow" are difficult to analyze based on operation logs only.
• Since the number and size of the files are huge, the information helps to find the operation log where the problem
occurred.
• When R&D reproduces the failure, it is necessary to use information such as the procedure used by the customer,
frequency of use, and job data at the time of occurrence of the failure.
6. Remove the board installed in step 1 and return the settings back to the original values.
■ Preparation
Follow the procedure shown below to make preparations for collecting debug logs.
1. Refer to “Flow of Determining the Procedure for Collecting Logs” on page 307 and when it is judged that DEBUG
SRAM PCB ASS'Y Board is required, install the board.
DEBUG SRAM PCB
2. Refer to “Flow of Determining the Procedure for Collecting Logs” on page 307 and when it is judged that collection
of the key operation logs is required, enable [Store Key Operation Log] by following the procedure shown below.
1. Select [Settings/Registration] > [Management Settings] > [Device Management] > [Store Key Operation Log].
2. Select [ON] and press [OK] to start saving key operation logs.
CAUTION:
When collecting the key operation logs, be sure to obtain user's permission in advance.
6. Troubleshooting
310