Loyverse POS currently not offers the possibility to add your grafical logo at the head of the paper receipt, but you can do it by using the ESC/POS command for your printer.
1. Load the a grafical logo in your printer from PC unilites for your printer. Usially utilites you can find on CD disk from package or download from manufacturer site. (Some manufacturer have mobile application which allow to load logo from the mobile devices, for example Seiko Epson Corporation have Epson TM Utility which allow to upload even logo )
2. In the Loyverse POS app, please choose "Other model" as your printer model,
and in "Advanced Settings" at the field "Initialization ESC/POS commands", please type 1C,70,01,00
3. Of course, please do not forget push the "Save" button.
To print a logo, you first need to upload the it to your printer. You need to use the software for your printer and PC.
Then in the Loyverse POS app, you must choose "Other model" as your printer model, and in Advanced settings -> Initialization ESC/POS commands field, and type 1C,70,01,00
This instructions are only for ESC/POS printers. It is not suited for STAR family printers.