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HP Recommended
HP LaserJet Pro M203dw Printer
Microsoft Windows 11

All ok printing at 600dpi, I can print a full greyscale as present in original images.

Setting to 1200 dpi,  printing the same image, I can see only few levels of gray, most resulted black.

Why this compression?   images printed at 1200dpi result horrible.

Driver are updated.

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