J1 supports four print modes to meet your various printing scenarios, including Normal Mode, Copy Mode, Mirror Mode, and Backup Mode.
You can select the print mode in Luban.
If you use other third-party slicers to generate G-code files, you can select the print mode on the Touchscreen.
If you make the selection both in Luban and on the Touchscreen for one G-code file, the selection made in Luban will take precedence.
Make sure you have selected J1 as the machine model.
The Duplication Mode equals the Copy Mode on the Touchscreen. This is a temporary UI inconsistency issue that will be fixed soon.
You can also change the mode in Mode in the main toolbar.
By default, the Default Mode is selected.
You can tap the Question Mark icon beside to get brief introductions for each print mode.