Citizen COMPACT CT-S310II Service Manual page 61

6) After a while the POWER LED at the right side of the printer starts blinking.
Never turn the power off while the LED is blinking because the firmware update is in progress.
The printer will be initialized and automatically restored.
7) After the firmware is updated, perform self-printing to check that the version is correctly
upgraded.
Check the memory switch setting recorded before updating the firmware. In a case where
the setting is initialized after the update, make the settings as required.
8) After the firmware is updated, the settings may need to be changed according to the model or
destination. In such a case, send the configuration file to the printer by following steps 2) to 5).
For details about the configuration file, contact your distributor.
- 59 -
CT-S310II Series Service Manual