Re[2]: HP 10PS printer
Re[2]: HP 10PS printer
- Subject: Re[2]: HP 10PS printer
- From: "Steve Lawrence"<email@hidden>
- Date: Fri, 09 Nov 2001 11:34:29 GMT
Dan wrote:
>
Interesting. I have never encountered this approach before. Normally we
>
linearize with the LT cyan and Magenta engaged to ensure a linear
>
response on the those primaries. Reading them separately could, in
>
theory, produce non-linear response since the relationship of LT and pure
>
primary are not measured together. Thanks for your response.
Yes, you make a very good point Dan. A good light ink separation unit should
ensure that the 'combined' primary ink line is linear. [I feel I should adopt a
David Hunter impression for the next bit, but I can't figure how to in written
form beyond 'What's your tolerance?!' Sorry David for the bad joke.] We
linearise the light inks first so that the printer is performing optimally
before making the light ink separation decisions (principally trading
quality/reducing 'spottiness' against wetness/total ink constraints). The system
ensures the 'combined' inks have a linear response too.
Regards, Steve