Canon imageCLASS MF4890dw Service Manual page 477

4) Select [USB Device] and click [Next] button.
5) Click [Start] button.
6
Troubleshooting > Version Upgrade > Downloading System Software
F-6-7
F-6-8
6 Troubleshooting > Version Upgrade > Downloading System Software
6) Click [Yes] button for the warning message to start download.
7) Click [OK] button when download is completed.
8) Turn off and on the power to restart the device.
9) Output the spec report from Service mode to confirm if the firmware version is the same as
that on the note taken in Step 2).
COPIER > FUNCTION > MISC-P > OUTPUT > SPEC
6-6
F-6-9
F-6-10
F-6-11
6-6