Best output quality reachable with the HPLIP
driver, especially the 1200-dpi high resolution mode gives
excellent photo quality.
For basic printing functionality use the HPIJS
driver . For advanced functionality such
as printer status and maintenance features, use the
HPLIP driver (which includes HPIJS).
When used with HP's HPLIP driver, this printer
auto-detects the paper type and does appropriate dithering and
colour adjustment internally, controlled by the hardware. So even
when Ghostscript with the HPLIP driver only renders
the image with 300 or 600 dpi, the 2400x1200 dpi are used for the
internal dithering. So if you insert photo paper, the printer will
print in its highest quality, no paper type choice in the
driver's options is needed. There is also a special high
resolution mode where the image is rendered in 1200 dpi, without
paper detection, intended for photo paper only.
Duplexer optional (supported by the HPLIP,
"cdj970", and "pcl3" drivers).
This driver published by HP under the GPL (!) sends RGB data to the
printer. This makes the printer transferring the data to CMYK by
itself and so it gives a colour quality as good as under Windows. This driver is free software.