I would like to ask you how to print pictures via Bluetooth fast like the app Loyverse POS

[bigC_Dev]

I've been trying to use many SDKs for Android to test printing Bluetooth pictures, but they still print slowly. I also tested printing pictures via NVRAM to store in the internal printer, which is fast, but some printers do not support this function. However, the Loyverse app prints pictures so quickly. I don't know how they achieve such fast printing, so I'm unsure how to replicate it. Thank you for your support

[Yasuaki]

Hello @bigC_Dev

Thank you for your feedback!.