Bill, The short answer seems to be, make (a range of) greyscale or colour patches in Photoshop, print them using your production settings, and adjust the printer driver ink density until both the darkest and lightest patches are distinct from their neighbours... or as close as possible. The lightest colour (254,254,254) would ideally be distinct from white, (but barely), and the darkest (1,1,1) still just distinct from (0,0,0). Not many real-world devices will perform that well.
A search on the Luminous Landscape forums may reveal more detail: http://luminous-landscape.com/forum/lofiversion/index.php/t10486.html some people there seem to be printing ramps at intervals like (0,0,0), (10,10,10) etc. F On 5/9/07, Bill Elliott <[EMAIL PROTECTED]> wrote:
I think you are just about to hit the nail on the head. No 'printer expert' here, but, considering that 'brightness' comes from less ink-on-white-paper, I was thinking that too much ink is being put on the paper. That makes it the two of us thinking that. But how have you printed a "density ramp"? Bill On May 9, 2007, at 2:19 AM, Francis Bell wrote: Is it an ink density problem, in other words is the DJ90 laying down too much ink ? Have you tried printing density ramps to see how much ink is required for the printer/paper combo ? You say the colour is too colour saturated, which could mean too much ink. F On 5/8/07, Rick <[EMAIL PROTECTED]> wrote: > > I've profiled my monitor, found nearly no change was necessary. I was > not surprised by > that, for I've printed to a Canon i9900 printer for two years, and the > prints exactly match > my monitor. The prints are excellent. It's prints from the DJ90R that > are too dark and too > saturated with color. If I can learn how to further increase the > 'brightness', I'm sure the > color will back off a little and exactly match the monitor just as my > Canon i9900 prints > match the monitor. The subjects that I'm printing are that of people and > flowers. I > appreciate any help you all can give me. > > > --- In [email protected] > <HPDesignJet_Printers%40yahoogroups.com>, "Michael Keller" <[EMAIL PROTECTED]> > wrote: > > > > Have you profiled your monitor? Your monitor is probably brighter than > you > > can possibly represent with ink on paper. What are your images of? > It's also > > possible that you are trying to print out of gamut colors. Have you > viewed > > the images in Photoshop with "proof colors" on? Have you viewed the > image > > with the out of gamut warning on? > > > > > -----Original Message----- > > > > > > > > > I'm a college physics teacher who uses a DJ90R to make prints to > > > use in my classroom and > > > lab, so I'm not in the major league as all of you are, but I've > > > read every post with interest. > > > > > > I can't get my prints to be a bright as my iMac G5. > > > > > > > >
