Question about HP 62xl

I think so too

BK = Black
This cartridge has only black

Y,M,C = Yellow (yellow), Magenta (red/blue), Cyan (blue/green)
This is a combi cartridge where all 3 basic colours are included.

I assume that your printer has 2 cartridges:
- 1x Black (BK) HP 62XL
- 1x colour (Y,M,C) HP 62XL (XL stands for large content)

If you take a closer look at the packaging, you will see that on the
BK packaging only one black dot
on the Y,M,C 3 coloured dots (blue, yellow, red)