What I wrote already in the prior email makes it clear this is a 1200dpi
scanner.
"4 pixels per dot" would correspond to 3 colors + a B/W bit for each
dot-- what would be required for color scanning at 1200dpi. "Pixel" is
a rather slippery term. Perhaps the tech should have said "sensel".
But this was tier-one tech support after all, not a developer I was
talking with. And she had to look up that much.
On 01/28/2015 10:33 AM, m. allan noah wrote:
"4 pixels per dot" is a meaningless statement. A dot is a pixel. You
would have to ask the hplip guys if they can get 1200 dpi out of this
scanner.
allan
On Wed, Jan 28, 2015 at 9:39 AM, ken <geb...@mousecar.com> wrote:
On 01/28/2015 07:23 AM, m. allan noah wrote:
at least in lineart mode, the scanner maximum is 300dpi. Try scanimage
--mode=color --help
allan
According to specifications published by HP, this scanner's hardware and
optical resolution is 1200x1200 dpi. I just called HP tech support to
confirm this and was told this is correct and that, further, there are "4
pixels per dot", meaning that the scanner handles both color and B/W at that
resolution. So I don't know why scanimage would report that 300dpi is the
maximum resolution.
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