Is there way to print 1:1 image on Canon Selphy CP820?

I have Canon Selphy CP820 (model not matter actually) and want to print image without any scaling and cropping.
Original paper is proprietary 148x100mm. It prints at 300dpi. But when I trying to print 1618×1854 image in borderless mode – It scale it up and cut. E.g. 64x44mm object will be 68x47mm on paper.

How can I print as is? Thanks.