How to recover the previous version of D4K Pro Control Software:
The Software Recovery tab allows recovering the previous version of Control Software if for some reason the current version of Control Software isn’t working for you.
1. Tap Settings | Printer Settings | Software Recovery on the printer screen to open the tab.
→ The following screen appears.
2. Tap [Recover] to get back to the previous version of Control Software.
→ The following message appears.
3. Tap [Recover] to confirm Software recovery.
→ The process of software recovery starts.
→ After successful software recovery, the screen with the [Reboot] button appears.
4. To apply changes, reboot the printer. It will reboot automatically in 30 seconds. To reboot the printer manually, tap [Reboot].